CN113251011A - Drive system and control method for working machine, and working machine - Google Patents
Drive system and control method for working machine, and working machine Download PDFInfo
- Publication number
- CN113251011A CN113251011A CN202110529728.3A CN202110529728A CN113251011A CN 113251011 A CN113251011 A CN 113251011A CN 202110529728 A CN202110529728 A CN 202110529728A CN 113251011 A CN113251011 A CN 113251011A
- Authority
- CN
- China
- Prior art keywords
- power
- motor
- machine
- fuel
- working
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 162
- 239000000446 fuel Substances 0.000 claims abstract description 101
- 239000000295 fuel oil Substances 0.000 claims abstract description 71
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 70
- 230000008878 coupling Effects 0.000 claims abstract description 29
- 238000010168 coupling process Methods 0.000 claims abstract description 29
- 238000005859 coupling reaction Methods 0.000 claims abstract description 29
- 238000004590 computer program Methods 0.000 claims description 9
- 238000004364 calculation method Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 description 40
- 230000005540 biological transmission Effects 0.000 description 27
- 238000004891 communication Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/082—Servomotor systems incorporating electrically operated control means with different modes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0227—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0227—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices
- F16D2048/023—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices by pedal actuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a driving system, a control method and a working machine of the working machine, wherein the driving system comprises: a fuel drive mechanism; the output end of the fuel oil driving mechanism is in selective power coupling connection with the motor; the input end of the hydraulic oil pump is in power coupling connection with the output end of the motor, and the output end of the hydraulic oil pump is used for being in power coupling connection with an operation mechanism of the operation machine; the control device is electrically connected with the fuel oil driving mechanism, the motor and the hydraulic oil pump; the drive system includes an electrical plug-in mode of operation in which the control device is configured to control the output of the fuel drive mechanism to disconnect from the electric machine and to control operating parameters of the electric machine based on the power demand of the work machine. The driving system controls the working parameters of the motor based on the required power of the operation machine in the power-on operation mode, realizes the electric operation of the operation machine, accurately controls the external electric energy distribution, and improves the energy utilization rate.
Description
Technical Field
The present invention relates to the field of work machine technology, and in particular, to a drive system for a work machine, a control method for a work machine, and a work machine.
Background
The traditional operation machinery takes a gasoline engine or a diesel engine as a power source, brings noise and pollution to the environment, and has low fuel economy efficiency and high operation cost. At present, with the rapid development of the industry in the field of operation machinery and the full promotion of the state to the new energy industry, the electric operation machinery increasingly becomes the trend of the future development of the industry. The electric operation machine has the advantages of low noise and zero emission, but the energy utilization rate of the current electric operation machine is lower.
Disclosure of Invention
The invention provides a driving system of a working machine, a control method and the working machine, which are used for improving the fuel economy efficiency and the energy utilization rate of the working machine.
The present invention provides a drive system for a working machine, including: a fuel drive mechanism;
the output end of the fuel oil driving mechanism is in selective power coupling connection with the motor;
the input end of the hydraulic oil pump is in power coupling connection with the output end of the motor, and the output end of the hydraulic oil pump is used for being in power coupling connection with an operation mechanism of an operation machine;
the control device is electrically connected with the fuel oil driving mechanism, the motor and the hydraulic oil pump;
the drive system comprises an electric power insertion operation mode, wherein the control device is set to control the output end of the fuel oil drive mechanism to be disconnected with the motor and control the working parameters of the motor based on the required power of the operation machine.
According to the present invention there is provided a drive system for a work machine, the drive system comprising a fuel operating mode;
in the fuel oil operation mode, the control device is set to control the fuel oil driving mechanism to be started and the fuel oil driving mechanism to be in power coupling connection with the motor, and controls the working parameters of the fuel oil driving mechanism based on the required power.
According to the driving system of the working machine provided by the invention, in the power-on working mode, the control device is set to control the driving system to be switched from the power-on working mode to the fuel working mode under the condition that the real-time working power is larger than the power supply power of an external power supply and/or under the condition that the driving system is disconnected from the external power supply;
in the fuel oil operation mode, the control device is set to control the driving system to be switched to the plug-in operation mode from the fuel oil operation mode under the condition that the time that the real-time operation power is not larger than the power supply power of the external power supply is longer than the preset time.
According to the present invention, there is provided a drive system for a working machine, further comprising:
a load sensor configured to collect a load signal of the work machine;
a single rope speed sensor configured to acquire a single rope speed signal of the work machine;
the upper vehicle handle signal sensor is used for acquiring an upper vehicle handle signal of the operation machine;
the accelerator pedal signal sensor is used for acquiring an accelerator pedal signal of the operation machine;
the hydraulic oil pump sensor is arranged for acquiring a performance signal of the hydraulic oil pump;
the control device is electrically connected with the load sensor, the single rope speed sensor, the boarding handle signal sensor, the accelerator pedal signal sensor and the hydraulic oil pump sensor;
the control device is configured to determine the required power based on at least one of the load signal, the single rope speed signal, the get-on handle signal, the accelerator pedal signal, and the performance signal of the hydraulic oil pump.
According to a driving system of a working machine according to the present invention, the control device includes:
the motor controller is electrically connected with the motor;
the vehicle control unit is electrically connected with the fuel oil driving mechanism, the motor controller and the hydraulic oil pump;
the vehicle control unit is arranged to control the on-off state of the fuel oil driving mechanism and the power coupling connection state of the fuel oil driving mechanism and the motor based on the connection condition of the driving system and an external power supply;
the vehicle control unit is configured to control the operating parameters of the fuel drive mechanism based on the required power, or the vehicle control unit is configured to control the operating parameters of the motor based on the required power.
The invention also provides a working machine comprising a driving system of the working machine.
The present invention also provides a method for controlling a drive system of a working machine, including: determining the required power of the working machine based on the working condition information of the working machine;
determining that the operating machine is electrically connected with an external power supply, and controlling the output end of the fuel oil driving mechanism to be disconnected with the motor;
controlling an operating parameter of the electric machine based on the demanded power.
According to the present invention, there is provided a method of controlling a drive system of a working machine, wherein determining a required power of the working machine based on operating condition information of the working machine includes:
acquiring the working condition information, wherein the working condition information comprises at least one of a load signal, a single rope speed, a boarding handle signal, an accelerator pedal signal and a performance signal of a hydraulic oil pump of the working machine;
calculating the required power based on at least one of a load signal, a single rope speed signal, a get-on handle signal, an accelerator pedal signal, and a performance signal of a hydraulic oil pump of the work machine.
According to the present invention, there is provided a method of controlling a drive system of a working machine, including:
under the condition that the fuel oil driving mechanism is closed, determining that the real-time operation power is larger than the power supply power of the external power supply, and/or disconnecting the operation machine from the external power supply;
controlling the fuel driving mechanism to be started;
controlling the rotating speed of the fuel oil driving mechanism to be equal to the rotating speed of the motor;
and controlling the fuel oil driving mechanism to be in power coupling connection with the motor.
According to the present invention, there is provided a method of controlling a drive system of a working machine, including:
under the condition that the fuel oil driving mechanism operates, determining that the time when the real-time operation power is not more than the power supply power of the external power supply is more than the preset time;
and controlling the fuel driving mechanism to be closed and disconnecting the fuel driving mechanism from the motor.
The present invention also provides a control device for a working machine, including:
the calculation module is used for determining the required power of the working machine based on the working condition information of the working machine;
the first control module is used for determining that the operating machine is electrically connected with an external power supply and controlling the output end of the fuel oil driving mechanism to be disconnected with the motor;
and the second control module is used for controlling the working parameters of the motor based on the required power.
The present invention also provides an electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method for controlling the drive system of the working machine when executing the program.
The invention also provides a non-transitory computer-readable storage medium on which a computer program is stored, which computer program, when being executed by a processor, realizes the steps of the method of controlling a drive system of a working machine as set forth in any one of the above.
The driving system, the control method and the working machine of the working machine provided by the invention have the advantages that the working parameters of the motor are controlled based on the required power of the working machine, the electric operation of the working machine is realized, the external electric energy distribution is accurately controlled, and the energy utilization rate is improved while the operation noise is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic configuration diagram of a drive system of a work machine according to the present invention;
fig. 2 is a flowchart illustrating a method of controlling a drive system of a work machine according to the present invention;
fig. 3 is a schematic structural diagram of a control device for a working machine according to the present invention;
fig. 4 is a schematic structural diagram of an electronic device provided in the present invention.
Reference numerals:
111: an engine; 112: a gearbox; 113: a power takeoff;
114: a clutch; 120: a motor; 130: a hydraulic oil pump;
141: a vehicle control unit; 142: a motor controller; 150: connecting an external power supply;
160: a hydraulic valve block; 171: a drive shaft; 172: an axle;
173: and (7) wheels.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The drive system of the working machine of the present invention, which is applied to a hybrid working machine having an electromotive power source and a fuel power source, will be described below with reference to fig. 1.
The working machine may be a tower crane, an automobile crane, an excavator, a pile driver, a concrete machine, a road roller, a mixer truck, a heading machine, a pump truck, a fire truck or the like.
The electric power source of the working machine is external electric energy and is provided by being connected with an external power grid through a power grid cut-in interface.
The fuel powered source of the work machine is provided by a fuel driven mechanism in the drive system, typically a gasoline or diesel engine, which converts chemical energy into mechanical energy that is transmitted through a transmission mechanism to the work machine as the power source.
The drive system is a power control system for controlling the travel and operation of the working machine, and generally includes a power source, a controller, a motor, a working mechanism, and the like.
The driving system is a link for transmitting power between the power source and the operating mechanism, and the controller is used for controlling the distribution of the power in the system, the switch of the motor and the corresponding action of the operating mechanism.
As shown in fig. 1, the present invention provides a power drive system for a working machine, including: a fuel drive mechanism, a motor 120, a hydraulic oil pump 130, and a control device.
The fuel driving mechanism provides a fuel power source for the driving system, can generate power and transmit power, and is a combination of a plurality of mechanical devices.
As shown in fig. 1, the fuel drive mechanism includes an engine 111, a transmission 112, a power take-off 113, and a clutch 114.
The engine 111 is a mechanical device for generating power, and is capable of converting chemical energy of fuel into mechanical energy, and the engine 111 may be a diesel engine or a gasoline engine.
The transmission 112, the power take-off 113, and the clutch 114 constitute a transmission of the fuel drive mechanism, and transmit the power supplied from the engine 111 to output.
The transmission 112 is a mechanism for changing the rotational speed and torque from the engine 111, and can change the output shaft and input shaft gear ratios in fixed or stepped fashion.
The transmission 112 may vary the gear ratio from the engine 111 to meet the traction requirements of the work machine for different work or driving conditions.
The power output form of the transmission 112 can be generally divided into a transmission side power output form, a transmission front power output form, a transmission rear power output form and an engine front power output form.
The power take-off 113, also called a power takeoff, is connected to the transmission 112 for outputting power to an external device.
The clutch 114 is located between the engine 111 and the gearbox 112, and an output shaft of the clutch 114 is an input shaft of the gearbox 112.
An operator of the work machine may depress or release the clutch 114 pedal as needed to temporarily disengage and gradually engage the engine 111 with the transmission 112 to cut off or transfer power input from the engine 111 to the transmission 112.
The transmission 112, the power take-off 113 and the clutch 114 are transmission devices commonly used for power transmission in a fuel oil driving mechanism, and can transmit and output power provided by the engine 111 to a working mechanism for working or a travelling mechanism for travelling.
The power provided by the fuel drive mechanism is also used to drive the work machine to travel and travel via a travel mechanism that includes a drive shaft 171, an axle 172, and wheels 173.
The drive shaft 171 is a high-speed, low-support rotating body, and is an important component for transmitting power in an automobile power train.
The axle 172, also called axle, is connected to the vehicle body through a suspension, and wheels 173 are mounted on both ends of the axle 172, and the axle 172 is used for bearing the load of the vehicle.
The propeller shaft 171 and the axle 172 transmit power supplied from the fuel drive mechanism to the wheels 173, and the work machine is driven to travel by generating driving force.
The motor 120 is configured to generate a driving torque, and is used as a power source of the working mechanism to drive the working mechanism of the working machine to work.
The motor 120 is a drive motor that can be driven by either current or mechanical transmission.
The motor 120 may be electrically driven by electric energy provided by the external power source 150, or may be driven by mechanical energy provided by a fuel driving mechanism.
The external power source 150 may be a 220V external power grid source, or a 380V external power grid source.
The output end of the fuel oil driving mechanism is selectively connected with the motor 120 in a power coupling manner, and the connection and disconnection between the output end of the fuel oil driving mechanism and the motor 120 are controlled through a transmission device in the fuel oil driving mechanism.
For example, the clutch 114 is controlled to be engaged and the power take-off 113 is controlled to take power, so that the power of the fuel drive mechanism is transmitted to the motor 120, and the output end of the fuel drive mechanism is in power coupling connection with the motor 120.
The clutch 114 is controlled to be disconnected or the power take-off 113 is controlled not to take power, and at this time, the output end of the fuel drive mechanism and the motor 120 are disconnected.
The hydraulic oil pump 130 is a power element of a hydraulic system, and can be driven by the engine 111 or the motor 120 to suck oil from a hydraulic oil tank, discharge the pressure oil and transmit the pressure oil to an actuator.
The hydraulic oil pump 130 may be classified into a gear pump, a plunger pump, a vane pump, and a screw pump according to the structure.
The input end of the hydraulic oil pump 130 is coupled to the output end of the motor 120, and the output end of the hydraulic oil pump 130 is used for coupling to the working mechanism of the working machine.
The input end of the hydraulic oil pump 130 is in power coupling connection with the output end of the motor 120, the motor 120 drives the hydraulic pump to suck oil from the hydraulic oil tank, form pressure oil to be discharged, and convey the pressure oil to the operation mechanism to drive the operation mechanism to operate.
The output of hydraulic oil pump 130 may be connected to a hydraulic valve block 160, and hydraulic valve block 160 may be connected to various working mechanisms to drive the working mechanisms to work in a hydraulic driving manner.
The hydraulic valve set 160 is formed by combining a number of hydraulic valves, which are automated components operated by hydraulic oil for controlling hydraulic pressure, flow and direction in hydraulic transmission.
The output end of the hydraulic oil pump 130 may also be connected to a plurality of hydraulic oil pumps 130, and the plurality of hydraulic oil pumps 130 are connected to different working mechanisms to drive the working mechanisms to work in a hydraulic driving manner.
It is understood that the output of the motor 120 in the driving system may be coupled to the input of the end hydraulic oil pump 130 to drive the working mechanism to work in a hydraulic driving manner, or may be directly connected to the working mechanism to drive the working mechanism to work in an electric or mechanical driving manner.
The control device is used for controlling the whole driving system, wherein the control device is an integrated circuit which controls the motor 120 to work according to the set direction, speed, angle and response time through active work, and the control device can be arranged separately or in a centralized way.
The control device is electrically connected to the fuel drive mechanism, the electric motor 120, and the hydraulic oil pump 130, and is configured to control the on/off state of the engine 111, the engagement disconnection of the transmission, and the operating states of the electric motor 120 and the hydraulic oil pump 130 in the fuel drive mechanism.
The control device controls the on-off state of the engine 111, the disconnection of the transmission, and the operating states of the motor 120 and the hydraulic oil pump 130 to provide an electric power source and a fuel power source for the working mechanism of the working machine, and controls the operating states of the motor 120 and the hydraulic oil pump 130 to control the working machine to operate.
The electrical connection control of the control device to the fuel drive mechanism, the motor 120, and the hydraulic oil pump 130 may be performed through CAN network communication or through other network communication.
It can be understood that, when the external power source is connected to the working machine, the driving system uses the electric energy of the external power source as a power source, and at this time, the driving system is in the plug-in working mode.
In the plug-in mode of operation of the drive system, the control means is arranged to control the disconnection of the output of the fuel drive from the electric motor 120 and to control the operating parameters of the electric motor 120 on the basis of the power demand of the work machine.
The control device controls the transmission device in the fuel oil driving mechanism to be disconnected with the motor 120, so that the electric operation of the operation machine is realized, the pollution emission of the operation machine is reduced, and the operation noise is reduced.
In the related art, when the motor drives the working machine to work, an operator usually controls the rotation speed of the motor directly and manually, or the motor runs at an idle speed directly, which causes uneven distribution of electric energy of the motor and low utilization rate.
In the plug-in mode of operation of the drive system of the present invention, the control device controls the operating parameters of the motor 120 based on the power demand of the work machine.
The required power is the power required for the operation of each working mechanism in the working machine in the working and standby states, and its magnitude is related to the working machine load, travel, work, and the operating conditions of the motor 120 and the hydraulic oil pump 130.
The working parameters of the motor 120 include efficiency, power factor, current, voltage, torque, and rotation speed, and the working parameters of the motor 120 can be controlled to meet the working requirements of the working mechanism.
It will be appreciated that controlling the operating parameters of motor 120 based on the power demand of the work machine may allow for precise control of external power distribution and improve energy utilization.
According to the driving system of the working machine provided by the invention, under the power-on working mode, the working parameters of the motor are controlled based on the required power of the working machine, the electric working of the working machine is realized, the external electric energy distribution is accurately controlled, and the energy utilization rate is improved while the working noise is reduced.
In some embodiments, a drive system for a work machine, further comprises: the device comprises a load sensor, a single-rope speed sensor, an upper vehicle handle signal sensor, an accelerator pedal signal sensor and a hydraulic oil pump sensor.
The load sensor, the single-rope speed sensor, the boarding handle signal sensor, the accelerator pedal signal sensor and the hydraulic oil pump sensor are used for acquiring different signals of different devices of the operation machine.
The load sensor is configured to collect a load signal of the work machine, for example, a hoist weight fed back by the hydraulic oil pump 130 when the work machine is operating.
The single-rope speed sensor is used for collecting a single-rope speed signal of the operation machine, and the single-rope speed signal is the single-rope speed of the operation machine in the hoisting operation or transportation process.
Wherein the load signal and the single rope speed signal belong to an operation signal of the working machine.
The get-on handle signal sensor is set to collect get-on handle signals of the operation machinery, and the get-on handle signals are signals transmitted when an operator of the operation machinery gets on the operation handle.
The accelerator pedal signal sensor is set to acquire an accelerator pedal signal of the operation machine, and the accelerator pedal signal is a signal transmitted when an operator of the operation machine steps on an accelerator pedal.
The getting-on handle signal and the accelerator pedal signal belong to input signals of the operation machinery.
The hydraulic oil pump sensor is configured to collect performance signals of the hydraulic oil pump 130, including performance signals of displacement, pressure, and rotational speed of the hydraulic oil pump 130.
The control device is electrically connected with the load sensor, the single-rope speed sensor, the boarding handle signal sensor, the accelerator pedal signal sensor and the hydraulic oil pump sensor, and can receive the collected load signal, the single-rope speed signal, the boarding handle signal, the accelerator pedal signal and the performance signal of the hydraulic oil pump 130.
During the operation of each operation mechanism in the operation machine, the generated load signal, the single rope speed signal, the getting-on handle signal, the accelerator pedal signal and the performance signal of the hydraulic oil pump 130 reflect the current load condition, the operation condition of the operation machine, the operation condition of the hydraulic oil pump 130 and the like.
The control device is configured to obtain the current operation condition of the working machine based on at least one of the load signal, the single rope speed signal, the getting-on handle signal, the accelerator pedal signal and the performance signal of the hydraulic oil pump 130, and calculate to obtain the required power of the working machine.
For example, the control device may be arranged to determine the power demand of the work machine based on the load signal, by deriving a current operating condition of the work machine.
The control device can also be set to obtain the current running condition of the operation machine based on the load signal and the getting-on handle signal so as to obtain the required power.
The control device can also be set to obtain the current running condition of the operation machine based on the load signal, the lifting rope speed signal and the getting-on handle signal, so as to obtain the required power.
The control device may also be configured to obtain the current operating condition of the work machine based on the load signal, the get-on handle signal, and the displacement of the hydraulic oil pump 130, to obtain the required power.
The required power is obtained, the working parameters of the motor 120 can be controlled based on the required power of the working machine, the energy distribution can be accurately controlled, and the energy utilization rate is improved.
In some embodiments, the drive system is in a fuel operating mode without the power supplied by the external power source 150.
When the driving system is in the fuel oil operation mode, the control device is set to control the fuel oil driving mechanism to be started and the fuel oil driving mechanism to be in power coupling connection with the motor 120, and controls the working parameters of the fuel oil driving mechanism based on the required power of the operation machine.
The control device controls the fuel driving mechanism to be opened, mainly controls an engine 111 in the fuel driving mechanism to be opened, and provides power for the driving system.
The control fuel driving mechanism is in power coupling connection with the motor 120, and transmits power provided by the engine 111 in the fuel driving mechanism to the motor 120 through a transmission device, so as to drive the motor 120 in a mechanical driving mode.
The drive system is in a fuel operating mode and the control means controls operating parameters of the fuel drive mechanism based on the power demand of the work machine, for example, to dynamically adjust operating state points of the engine 111 or the transmission ratio of the gearbox 112.
It can be understood that the working parameters of the fuel driving mechanism are controlled based on the required power of the working machine, so that the fuel driving mechanism can be in the optimal working economic range, the fuel consumption can be effectively reduced, and the energy utilization rate can be improved.
In particular, the control device may send a torque command for the engine 111 based on the power demand of the working machine, and control the output torque of the engine 111 in the fuel drive mechanism in a closed-loop control manner.
In some embodiments, the control devices include a motor controller 142 and a vehicle control unit 141.
The motor controller 142 is an integrated circuit that actively controls the motor 120 to operate according to a set direction, speed, angle, and response time.
The motor controller 142 is electrically connected to the motor 120 for directly controlling the operating parameters of the motor 120.
The motor controller 142 may be provided with a power plug for electrical connection with the external power source 150.
The vehicle control unit 141(VCU) is a control core of the drive system, and monitors and controls operations of the devices in the drive system.
The vehicle control unit 141 may collect the state of the motor 120, the state of the engine 111, the connection state of the external power source 150, and signals of various sensors to perform analysis control.
The vehicle control unit 141 mainly controls the operation of the work machine, braking energy feedback, energy management, network management, fault diagnosis, and condition monitoring.
It can be understood that, through the control of the vehicle control unit 141, the normal and stable operation of the working machine under the conditions of better dynamic property, higher economical efficiency and reliability can be ensured.
The vehicle control unit 141 is electrically connected to the fuel driving mechanism, the motor controller 142, and the hydraulic oil pump 130, and controls an on/off state of the fuel driving mechanism, an enable state of the motor controller 142, and an operating state of the hydraulic oil pump 130.
The vehicle control unit 141 is configured to control the on/off state of the fuel driving mechanism and the power coupling connection state of the fuel driving mechanism and the motor 120 based on the connection condition of the driving system and the external power source 150.
The vehicle control unit 141 determines whether the driving system of the working machine operates in the power-on operation mode or the fuel operation mode based on the electrical connection condition of the electrical plug in the motor controller 142.
In the power-on mode, the vehicle controller 141 controls the fuel driving mechanism to be turned off, the power coupling connection between the fuel driving mechanism and the motor 120 is disconnected, and at this time, the power source of the driving system is the external power source 150.
In the fuel operation mode, the vehicle control unit 141 controls the fuel driving mechanism to be opened, the fuel driving mechanism is coupled with the power of the motor 120, and at this time, the power source of the driving system is the power provided by the engine 111 in the fuel driving mechanism.
The control means in the drive system are arranged to control the operating parameters of the electric motor 120 or the fuel drive mechanism on the basis of the power demand of the work machine.
In the plug-in mode, the vehicle controller 141 is configured to control the motor controller 142 to control the operating parameters of the motor 120 based on the required power.
The vehicle control unit 141 acquires the state of the motor 120, the connection state of the external power supply 150, and signals of various sensors to obtain the current operating condition of the working machine.
The vehicle control unit 141 obtains the required power of the working machine according to the current operating condition of the working machine, and obtains the operating parameters of the motor 120 capable of realizing accurate energy control and distribution according to the required power.
The vehicle control unit 141 sends the obtained operating parameters of the motor 120 to the motor controller 142, and the motor controller 142 directly controls the motor 120 according to the received operating parameters.
In the fuel operating mode, vehicle control unit 141 is configured to control operating parameters of the fuel-powered mechanism based on the power demand.
The vehicle control unit 141 collects the state of the engine 111 and signals of various sensors to obtain the current operating condition of the working machine.
The vehicle control unit 141 obtains the required power of the working machine according to the current operating condition of the working machine, and obtains the working parameters for making the driving mechanism in the optimal working economic range according to the required power.
The vehicle control unit 141 directly controls the operating state of the fuel driving mechanism according to the obtained operating parameters that enable the fuel driving mechanism to be in the optimal operating economic region, thereby reducing fuel consumption and improving energy utilization rate.
In some embodiments, in the power-on mode, the control device is configured to control the driving system to switch from the power-on mode to the fuel mode in case the real-time operating power is greater than the power supply power of the external power source 150 and/or in case the driving system is disconnected from the external power source 150.
The real-time work power is power consumption generated by the operation of the working mechanism in the working machine in the actual operation and standby state, and its magnitude is related to the load condition, the traveling condition, the working condition, and the standby condition of the motor 120.
It will be understood that real-time operating power is the power consumption actually generated, and the required power is the power required by each operating mechanism to operate in the operating and standby states, and can be estimated based on the input signal.
The power supplied by the external power source 150 is the maximum power that the external power source 150 connected to the driving system can provide.
The real-time operating power is not greater than the power supplied by the external power source 150, and the electrical energy provided by the external power source 150 is sufficient for the operating requirements of the work machine.
The real-time operation power is greater than the power supply power of the external power source 150, and at this time, the electric energy provided by the external power source 150 cannot meet the operation requirement of the operation machine.
When the control device monitors that the real-time operation power is larger than the power supply power of the external power supply 150, the control device controls the driving system to switch from the power-on operation mode to the fuel oil operation mode.
It can be understood that when the driving system is disconnected from the external power source 150, the driving system can no longer use the electric energy provided by the external power source 150, and at this time, the control device controls the driving system to switch from the power-on operation mode to the fuel oil operation mode, so as to meet the operation requirement of the operation machine.
In the related art, when the power provided by the external power supply for the operation machine does not meet the operation requirement, the operation mode is usually switched manually by an operator, and the manual switching process not only increases the operation time and reduces the operation efficiency, but also can cause danger.
In specific implementation, the vehicle control unit 141 sends a start instruction to the engine 111 in the fuel drive mechanism through the CAN signal, so as to provide a power source in the drive system.
The vehicle controller 141 monitors the rotation speeds of the motor 120 and the transmission case 112, and controls the rotation speed of the transmission case 112 to be equal to the rotation speed of the motor 120, so that the output end of the fuel oil driving mechanism is stably connected with the motor 120. The vehicle controller 141 sends the motor controller 142 a non-enable mode in which the motor 120 transmits the mechanical rotational power of the fuel drive mechanism as a mechanical structure.
In some embodiments, in the fuel operation mode, the control device is configured to control the drive system to switch from the fuel operation mode to the plug-in operation mode if the control device determines that the real-time operation power is not greater than the power supply power of the external power supply 150 for a time period greater than a preset time period.
In the fuel operation mode, the control device monitors that the external power supply 150 is connected, and continuously monitors the power supply power of the external power supply 150.
When the time that the real-time operation power is not greater than the power supply power of the external power supply 150 is determined to be greater than the preset time, the electric energy provided by the external power supply 150 can meet the operation requirement of the operation machine, and the external power supply 150 is stable enough.
It can be understood that the preset duration is a judgment condition for judging whether the external power supply 150 is stable, and the accuracy of the power supply can be improved by monitoring the power supply of the external power supply 150 which is greater than the preset duration.
And when the time that the real-time operation power is not more than the power supply power of the external power supply 150 is determined to be longer than the preset time, the control device controls the driving system to be switched from the fuel oil operation mode to the power-on operation mode, so that the electric operation of the operation machinery is realized, and the operation noise is reduced.
In specific implementation, the time when the vehicle control unit 141 monitors that the real-time operation power is not greater than the power supply power of the external power supply 150 is greater than the preset time, and controls the engine 111 in the fuel oil driving mechanism to be turned off.
The vehicle control unit 141 controls the fuel driving mechanism to be disconnected from the power coupling of the motor 120, controls the motor controller 142 to be in an enabling state, and switches the driving system to the power-on mode.
The invention also provides a working machine comprising a driving system of the working machine.
In the plug-in operation mode of the operation machine, the working parameters of the motor 120 are controlled based on the required power of the operation machine, so that the electric operation of the operation machine is realized, the external electric energy distribution is accurately controlled, and the energy utilization rate is improved while the operation noise is reduced.
The fuel oil operation mode of the operation machine controls the working parameters of the fuel oil driving mechanism based on the required power of the operation machine, so that the fuel oil driving mechanism can be in the optimal working economic region, the fuel oil consumption can be effectively reduced, and the energy utilization rate is improved.
As shown in fig. 2, the present invention also provides a control method based on the drive system of the working machine.
This control method is executed in the above-described drive system for a working machine, which includes the fuel drive mechanism, the motor 120, the hydraulic oil pump 130, and the control device.
The driving system can operate in a plug-in operation mode and a fuel oil operation mode and can be switched between the plug-in operation mode and the fuel oil operation mode.
The control method includes steps 210 to 230.
Step 210, determining the power demand of the work machine based on the work condition information of the work machine.
The required power is the power required by each working mechanism in the working machine to operate in the working and standby states, and the magnitude thereof is related to information on the working conditions such as the load, running, work, operation of the motor 120, and operation of the hydraulic oil pump 130.
Based on the operating condition information of the work machine, the power demand of the work machine may be determined.
In particular implementations, the operating condition information includes at least one of a load signal, a single rope speed, a get-on handle signal, an accelerator pedal signal, and a performance signal of the hydraulic oil pump 130 of the work machine.
The load signal, the single rope speed, the get-on handle signal, the accelerator pedal signal, and the performance signal of the hydraulic oil pump 130 reflect the current load condition, the current work condition, and the current running condition of the hydraulic oil pump 130 of the work machine.
The required power is calculated based on at least one of a load signal of the work machine, a single rope speed signal, a boarding handle signal, an accelerator pedal signal, and a performance signal of the hydraulic oil pump 130.
The load signal of the working machine may be a hoist weight fed back by the hydraulic oil pump 130 when the working machine is working.
The single rope speed signal is the single rope speed of the working machine in the hoisting operation or transportation process.
The get-on handle signal is a signal transmitted when an operator of the working machine gets on the operation handle.
The accelerator pedal signal is a signal transmitted when an operator of the work machine steps on the accelerator pedal.
The performance signal of the hydraulic oil pump 130 includes performance signals of displacement, pressure, and rotational speed of the hydraulic oil pump 130.
It should be noted that the operating condition information selected by calculating the required power is determined according to the type of the working machine and the actual working requirement.
For example, the current operation condition of the working machine can be obtained based on a single load signal, and the required power of the working machine can be obtained; the required power may also be found based on a combination of the load signal and the boarding handle signal, or a combination of the load signal, the boarding handle signal, and the displacement of the hydraulic oil pump 130.
It can be understood that, when the external power source is connected to the working machine, the driving system uses the electric energy of the external power source as a power source, and at this time, the driving system is in the plug-in working mode.
The driving system controls the output end of the fuel oil driving mechanism to be disconnected with the motor 120 in the power-on operation mode, so that the electric operation of the operation machine is realized, the pollution emission of the operation machine is reduced, and the operation noise is reduced.
And step 230, controlling the working parameters of the motor 120 based on the required power.
The required power is a power required for the operation of each working mechanism in the working machine in the operating state and the standby state.
The working parameters of the motor 120 include the efficiency, power factor, current, voltage, torque, and rotation speed of the motor 120, and the working parameters of the motor 120 are controlled to meet the working requirements of the working mechanism.
Controlling the operating parameters of motor 120 based on the power demand of the work machine may allow for precise control of external power distribution and improve energy utilization.
According to the control method of the driving system based on the working machine, the working parameters of the motor 120 are controlled based on the required power of the working machine, the electric operation of the working machine is realized, the external electric energy distribution is accurately controlled, and the energy utilization rate is improved while the operation noise is reduced.
In some embodiments, the fuel-driven mechanism is controlled to be turned on and in power coupling connection with the motor 120 without the power supplied from the external power source 150, and the operating parameters of the fuel-driven mechanism are controlled based on the required power of the work machine.
It will be appreciated that the drive system is in a fuel operating mode when no power is supplied from the external power source 150.
The fuel driving mechanism is controlled to be opened, and mainly an engine 111 in the fuel driving mechanism is controlled to be opened to provide power for a driving system.
The control fuel driving mechanism is in power coupling connection with the motor 120, and transmits power provided by the engine 111 in the fuel driving mechanism to the motor 120 through a transmission device, so as to drive the motor 120 in a mechanical driving mode.
The operating parameters of the fuel driven mechanism are controlled based on the power demand of the work machine, for example, the operating state point of the engine 111 or the gear ratio of the transmission 112 is dynamically adjusted.
The working parameters of the fuel driving mechanism are controlled based on the required power of the working machine, so that the fuel driving mechanism can be in the optimal working economic range, the fuel consumption can be effectively reduced, and the energy utilization rate is improved.
In particular, a torque command of engine 111 may be sent based on the power demand of the work machine to control the output torque of engine 111 in the fuel drive mechanism in a closed-loop control manner.
In some embodiments, in the event the fuel drive mechanism is turned off, i.e., the drive system is in the plug-in mode of operation, it is determined that the real-time operating power is greater than the power supplied by the external power source 150 and/or that the work machine is disconnected from the external power source 150; controlling a fuel driving mechanism to be started; and controlling the driving system to switch from the plug-in operation mode to the fuel oil operation mode.
The real-time work power is power consumption generated by the operation of the working mechanism in the working machine in the actual operation and standby state, and the magnitude thereof is related to the load condition, the driving condition, the working condition, and the standby condition of the motor 120.
It is understood that real-time operating power is the power consumption that is actually produced; the required power is the power required by each operation mechanism in operation and standby state, and can be estimated according to the input signal.
The power supplied by the external power source 150 is the maximum power that the external power source 150 connected to the driving system can provide.
The real-time operating power is not greater than the power supplied by the external power source 150, and the electrical energy provided by the external power source 150 is sufficient for the operating requirements of the work machine.
The real-time operation power is greater than the power supply power of the external power source 150, and at this time, the electric energy provided by the external power source 150 cannot meet the operation requirement of the operation machine.
When the real-time operation power is larger than the power supply power of the external power supply 150, the driving system is controlled to be switched from the power-on operation mode to the fuel oil operation mode.
It can be understood that when the driving system is disconnected from the external power source 150, the driving system can no longer use the electric energy provided by the external power source 150, and at this time, the control device controls the driving system to switch from the power-on operation mode to the fuel oil operation mode, so as to meet the operation requirement of the operation machine.
In specific implementation, the rotation speeds of the motor 120 and the gearbox 112 are monitored, and after the rotation speed of the gearbox 112 is controlled to be equal to the rotation speed of the motor 120, the output end of the fuel oil driving mechanism is stably connected with the motor 120.
The fuel driving mechanism is controlled to be in power coupling connection with the motor 120, and the motor 120 is used as a mechanical structure to transmit mechanical rotation power of the fuel driving mechanism.
In some embodiments, in the case of the fuel driving mechanism being operated, i.e., the driving system being in the fuel operating mode, the time during which the real-time operating power is not greater than the power supply power of the external power source 150 is determined to be greater than the preset time period; the fuel driving mechanism is controlled to be closed and disconnected from the motor 120, and the driving system is controlled to be switched from the fuel operation mode to the plug-in operation mode.
In the fuel operation mode, the control device monitors that the external power supply 150 is connected, and continuously monitors the power supply power of the external power supply 150.
When the time that the real-time operation power is not greater than the power supply power of the external power supply 150 is determined to be greater than the preset time, the electric energy provided by the external power supply 150 can meet the operation requirement of the operation machine, and the external power supply 150 is stable enough.
It can be understood that the preset duration is a judgment condition for judging whether the external power supply 150 is stable, and the accuracy of the power supply can be improved by monitoring the power supply of the external power supply 150 which is greater than the preset duration.
The control drive system controls the fuel drive mechanism to close and controls the power coupling between the fuel drive mechanism and the motor 120 to disconnect the drive system and switch to the plug-in mode.
When the external power supply 150 is connected, the driving system is controlled to be switched from a fuel oil operation mode to an electricity-plugging operation mode, so that the electric operation of the operation machinery is realized, and the operation noise is reduced.
The following describes a control device for a working machine according to the present invention, and the control device for a working machine described below and the control method for a drive system for a working machine described above are referred to in correspondence with each other.
As shown in fig. 3, the present invention provides a drive control device for a working machine, including:
a calculation module 310, configured to determine a required power of the work machine based on the operating condition information of the work machine;
the first control module 320 is used for determining that the working machine is electrically connected with the external power supply 150 and controlling the output end of the fuel oil driving mechanism to be disconnected with the motor 120;
a second control module 330 for controlling an operating parameter of the motor 120 based on the power demand.
According to the control device of the working machine provided by the invention, the working parameters of the motor 120 are controlled based on the required power of the working machine, the electric operation of the working machine is realized, the external electric energy distribution is accurately controlled, and the energy utilization rate is improved while the operation noise is reduced.
In some embodiments, calculation module 310 is configured to determine a power demand of the work machine based on the operating condition information of the work machine, and includes:
acquiring working condition information, wherein the working condition information comprises at least one of a load signal, a single rope speed, a boarding handle signal, an accelerator pedal signal and a performance signal of the hydraulic oil pump 130 of the working machine;
the required power is calculated based on at least one of a load signal of the work machine, a single rope speed signal, a boarding handle signal, an accelerator pedal signal, and a performance signal of the hydraulic oil pump 130.
In some embodiments, the first control module 320 is further configured to determine that the real-time operating power is greater than the power supplied by the external power source 150 and/or that the work machine is disconnected from the external power source 150 when the fuel drive mechanism is turned off; controlling a fuel driving mechanism to be started; controlling the rotation speed of the fuel oil driving mechanism to be equal to the rotation speed of the motor 120; the control fuel driving mechanism is in power coupling connection with the motor 120.
In some embodiments, the first control module 320 is further configured to determine that the time when the real-time operating power is not greater than the power supply power of the external power source 150 is greater than a preset time period while the fuel driving mechanism is operating; controlling the fuel drive mechanism to shut down and disconnecting the fuel drive mechanism from the motor 120.
Fig. 4 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 4: a processor (processor)410, a communication Interface 420, a memory (memory)430 and a communication bus 440, wherein the processor 410, the communication Interface 420 and the memory 430 are communicated with each other via the communication bus 440. Processor 410 may invoke logic instructions in memory 430 to perform a method of controlling a drive system of a work machine, the method comprising: determining the required power of the working machine based on the working condition information of the working machine; determining that the operation machine is electrically connected with an external power supply, and controlling the output end of the fuel oil driving mechanism to be disconnected with the motor; and controlling the working parameters of the motor based on the required power.
In addition, the logic instructions in the memory 430 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform a method of controlling a drive system of a work machine provided by the above methods, the method comprising: determining the required power of the working machine based on the working condition information of the working machine; determining that the operation machine is electrically connected with an external power supply, and controlling the output end of the fuel oil driving mechanism to be disconnected with the motor; and controlling the working parameters of the motor based on the required power.
In yet another aspect, the present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program that, when executed by a processor, implements a method of controlling a drive system of a work machine provided in each of the above, the method including: determining the required power of the working machine based on the working condition information of the working machine; determining that the operation machine is electrically connected with an external power supply, and controlling the output end of the fuel oil driving mechanism to be disconnected with the motor; and controlling the working parameters of the motor based on the required power.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods of the various embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (13)
1. A drive system for a work machine, comprising:
a fuel drive mechanism;
the output end of the fuel oil driving mechanism is in selective power coupling connection with the motor;
the input end of the hydraulic oil pump is in power coupling connection with the output end of the motor, and the output end of the hydraulic oil pump is used for being in power coupling connection with an operation mechanism of an operation machine;
the control device is electrically connected with the fuel oil driving mechanism, the motor and the hydraulic oil pump;
the drive system comprises an electric power insertion operation mode, wherein the control device is set to control the output end of the fuel oil drive mechanism to be disconnected with the motor and control the working parameters of the motor based on the required power of the operation machine.
2. The drive system of a work machine of claim 1, wherein the drive system includes a fuel operating mode;
in the fuel oil operation mode, the control device is set to control the fuel oil driving mechanism to be started and the fuel oil driving mechanism to be in power coupling connection with the motor, and controls the working parameters of the fuel oil driving mechanism based on the required power.
3. The drive system of a work machine according to claim 2,
in the power-on operation mode, the control device is set to control the driving system to be switched to the fuel oil operation mode from the power-on operation mode under the condition that the real-time operation power is larger than the power supply power of an external power supply and/or under the condition that the driving system is disconnected from the external power supply;
in the fuel oil operation mode, the control device is set to control the driving system to be switched to the plug-in operation mode from the fuel oil operation mode under the condition that the time that the real-time operation power is not larger than the power supply power of the external power supply is longer than the preset time.
4. The drive system of a work machine according to any one of claims 1-3, further comprising:
a load sensor configured to collect a load signal of the work machine;
a single rope speed sensor configured to acquire a single rope speed signal of the work machine;
the upper vehicle handle signal sensor is used for acquiring an upper vehicle handle signal of the operation machine;
the accelerator pedal signal sensor is used for acquiring an accelerator pedal signal of the operation machine;
the hydraulic oil pump sensor is arranged for acquiring a performance signal of the hydraulic oil pump;
the control device is electrically connected with the load sensor, the single rope speed sensor, the boarding handle signal sensor, the accelerator pedal signal sensor and the hydraulic oil pump sensor;
the control device is configured to determine the required power based on at least one of the load signal, the single rope speed signal, the get-on handle signal, the accelerator pedal signal, and the performance signal of the hydraulic oil pump.
5. The drive system of a working machine according to any one of claims 1-3, wherein the control device comprises:
the motor controller is electrically connected with the motor;
the vehicle control unit is electrically connected with the fuel oil driving mechanism, the motor controller and the hydraulic oil pump;
the vehicle control unit is arranged to control the on-off state of the fuel oil driving mechanism and the power coupling connection state of the fuel oil driving mechanism and the motor based on the connection condition of the driving system and an external power supply;
the vehicle control unit is configured to control the operating parameters of the fuel drive mechanism based on the required power, or the vehicle control unit is configured to control the operating parameters of the motor based on the required power.
6. A work machine, comprising: a drive system for a working machine according to any of claims 1-5.
7. A method of controlling a drive system of a working machine according to any one of claims 1-5, comprising:
determining the required power of the working machine based on the working condition information of the working machine;
determining that the operating machine is electrically connected with an external power supply, and controlling the output end of the fuel oil driving mechanism to be disconnected with the motor;
controlling an operating parameter of the electric machine based on the demanded power.
8. The control method of claim 7, wherein determining the power demand of the work machine based on the operating condition information of the work machine comprises:
acquiring the working condition information, wherein the working condition information comprises at least one of a load signal, a single rope speed, a boarding handle signal, an accelerator pedal signal and a performance signal of a hydraulic oil pump of the working machine;
calculating the required power based on at least one of a load signal, a single rope speed signal, a get-on handle signal, an accelerator pedal signal, and a performance signal of a hydraulic oil pump of the work machine.
9. The control method according to claim 7, characterized by comprising:
under the condition that the fuel oil driving mechanism is closed, determining that the real-time operation power is larger than the power supply power of the external power supply, and/or disconnecting the operation machine from the external power supply;
controlling the fuel driving mechanism to be started;
controlling the rotating speed of the fuel oil driving mechanism to be equal to the rotating speed of the motor;
and controlling the fuel oil driving mechanism to be in power coupling connection with the motor.
10. The control method according to claim 7, characterized by comprising:
under the condition that the fuel oil driving mechanism operates, determining that the time when the real-time operation power is not more than the power supply power of the external power supply is more than the preset time;
and controlling the fuel driving mechanism to be closed and disconnecting the fuel driving mechanism from the motor.
11. A control device for a working machine, comprising:
the calculation module is used for determining the required power of the working machine based on the working condition information of the working machine;
the first control module is used for determining that the operating machine is electrically connected with an external power supply and controlling the output end of the fuel oil driving mechanism to be disconnected with the motor;
and the second control module is used for controlling the working parameters of the motor based on the required power.
12. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the control method according to any of claims 7 to 10 are implemented when the program is executed by the processor.
13. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the control method according to any one of claims 7 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110529728.3A CN113251011A (en) | 2021-05-14 | 2021-05-14 | Drive system and control method for working machine, and working machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110529728.3A CN113251011A (en) | 2021-05-14 | 2021-05-14 | Drive system and control method for working machine, and working machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113251011A true CN113251011A (en) | 2021-08-13 |
Family
ID=77182098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110529728.3A Pending CN113251011A (en) | 2021-05-14 | 2021-05-14 | Drive system and control method for working machine, and working machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113251011A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113733982A (en) * | 2021-08-27 | 2021-12-03 | 三一汽车起重机械有限公司 | Charging control method and device and working machine |
| CN114407683A (en) * | 2022-02-16 | 2022-04-29 | 三一重机有限公司 | Method, device, equipment, medium and work machine for controlling work machine |
| CN114988281A (en) * | 2022-07-05 | 2022-09-02 | 徐州重型机械有限公司 | Oil-electricity hybrid operation system of automobile crane and crane |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201326277Y (en) * | 2008-12-05 | 2009-10-14 | 三一重工股份有限公司 | Concrete pumping equipment drive device, concrete pump vehicle and vehicle-carrying pump |
| CN106427989A (en) * | 2016-10-14 | 2017-02-22 | 上海汽车变速器有限公司 | Modeintegrated optimizationenergy control achievement method for plug-in hybrid electric vehicle |
| CN108382180A (en) * | 2018-04-19 | 2018-08-10 | 贵州大学 | A kind of parallel connection type oil and electricity hybrid vehicle load formula concrete pump |
| CN109057346A (en) * | 2018-10-17 | 2018-12-21 | 三汽车制造有限公司 | Pump truck |
| CN111114306A (en) * | 2020-01-02 | 2020-05-08 | 中联重科股份有限公司 | Construction machine |
| CN112248792A (en) * | 2020-11-16 | 2021-01-22 | 三一汽车制造有限公司 | Hybrid power system and engineering machinery |
-
2021
- 2021-05-14 CN CN202110529728.3A patent/CN113251011A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201326277Y (en) * | 2008-12-05 | 2009-10-14 | 三一重工股份有限公司 | Concrete pumping equipment drive device, concrete pump vehicle and vehicle-carrying pump |
| CN106427989A (en) * | 2016-10-14 | 2017-02-22 | 上海汽车变速器有限公司 | Modeintegrated optimizationenergy control achievement method for plug-in hybrid electric vehicle |
| CN108382180A (en) * | 2018-04-19 | 2018-08-10 | 贵州大学 | A kind of parallel connection type oil and electricity hybrid vehicle load formula concrete pump |
| CN109057346A (en) * | 2018-10-17 | 2018-12-21 | 三汽车制造有限公司 | Pump truck |
| CN111114306A (en) * | 2020-01-02 | 2020-05-08 | 中联重科股份有限公司 | Construction machine |
| CN112248792A (en) * | 2020-11-16 | 2021-01-22 | 三一汽车制造有限公司 | Hybrid power system and engineering machinery |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113733982A (en) * | 2021-08-27 | 2021-12-03 | 三一汽车起重机械有限公司 | Charging control method and device and working machine |
| CN114407683A (en) * | 2022-02-16 | 2022-04-29 | 三一重机有限公司 | Method, device, equipment, medium and work machine for controlling work machine |
| WO2023155608A1 (en) * | 2022-02-16 | 2023-08-24 | 三一重机有限公司 | Work machine control method and apparatus, and device, work machine, medium and product |
| CN114988281A (en) * | 2022-07-05 | 2022-09-02 | 徐州重型机械有限公司 | Oil-electricity hybrid operation system of automobile crane and crane |
| WO2024007545A1 (en) * | 2022-07-05 | 2024-01-11 | 徐州重型机械有限公司 | Gasoline-electric hybrid operating system of truck crane, and crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113251011A (en) | Drive system and control method for working machine, and working machine | |
| CN101941432B (en) | Method for controlling torsion of stepless variable-speed moderate hybrid vehicle | |
| CN113147357B (en) | Power drive system for working machine, control method, and working machine | |
| CN102416867B (en) | Double-power driving device of engineering machinery | |
| SE1250590A1 (en) | Control system for equipment on a vehicle with electric hybrid drive system | |
| CN212765683U (en) | Hybrid power system of mixing transport vehicle | |
| SE1250588A1 (en) | Control system for equipment on a vehicle with electric hybrid drive system | |
| CN108674410A (en) | A kind of distribution hybrid power system and its control method | |
| CN113147359A (en) | Power system and control method for work machine | |
| CN110588378A (en) | Hybrid power supply type electrical control management system for electric engineering machinery | |
| CN113089739B (en) | Control method and control device for working machine and electronic equipment | |
| CN110541446B (en) | Electrical control system for 5-ton electric loader | |
| CN108382180B (en) | Parallel type oil-electricity hybrid power vehicle-mounted concrete pump | |
| CN102311048B (en) | Electric hydraulic system of crawler crane | |
| CN102826056B (en) | Automobile crane and driving system thereof | |
| CN114407683A (en) | Method, device, equipment, medium and work machine for controlling work machine | |
| CN116119533A (en) | Electric drive hybrid power transmission crane | |
| CN214246645U (en) | Pump truck power system and pump truck | |
| CN214564651U (en) | New forms of energy electric automobile facial make-up power supply system and control system | |
| CN113107734B (en) | Engine starting system and starting method | |
| CN210554229U (en) | Hybrid power supply type electrical control management system for electric engineering machinery | |
| CN210912403U (en) | Hybrid power system | |
| CN110295635B (en) | Electric bulldozer system and power self-adaptive control method thereof | |
| CN219280806U (en) | Dual-motor rotating speed control system of electric loader | |
| CN106956607A (en) | Mixed motivity type engineering machinery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210813 |