CN114719019B - Control system and control method for power takeoff of AT automatic transmission drive line - Google Patents
Control system and control method for power takeoff of AT automatic transmission drive line Download PDFInfo
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- CN114719019B CN114719019B CN202210311437.1A CN202210311437A CN114719019B CN 114719019 B CN114719019 B CN 114719019B CN 202210311437 A CN202210311437 A CN 202210311437A CN 114719019 B CN114719019 B CN 114719019B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 225
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000012546 transfer Methods 0.000 claims abstract description 20
- 230000002159 abnormal effect Effects 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 208000012661 Dyskinesia Diseases 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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Classifications
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- 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
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/06—Auxiliary drives from the transmission power take-off
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
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- 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
- F16H—GEARING
- F16H41/00—Rotary fluid gearing of the hydrokinetic type
- F16H41/04—Combined pump-turbine units
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- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
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- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Human Computer Interaction (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention provides a control system and a control method of a transmission power takeoff of an AT automatic transmission, wherein the output end of an engine is connected with the input shaft of the AT automatic transmission, the output shaft of the AT automatic transmission is connected with the input end of a transfer case, the output end of the transfer case is respectively connected with a transmission shaft of a vehicle and upper equipment, a transmission AT transmission controller is arranged on a shell of the AT automatic transmission, when a driver starts the transmission power takeoff, the AT transmission controller receives an opening signal, and then acquires a signal of switching the transfer case to a power takeoff working process, the AT automatic transmission enters a working mode of the transmission power takeoff, when the driver places a transmission selector into a D gear from an N gear, the AT automatic transmission directly enters a high gear, the rotating speed of the engine is maintained in a constant state, power output is continuously carried out, the safety degree of the whole system is high, the power takeoff is high, and corresponding fault alarm and fault processing are carried out when faults occur.
Description
Technical Field
The invention belongs to the technical field of power takeoff control systems, and relates to a control system and a control method of an AT automatic transmission power takeoff.
Background
At present, the number of domestic special transportation vehicles is increased continuously, and various different special working conditions are required to be met in the design of a drive train on the premise of meeting safe and energy-saving driving. The demand for high torque, high rotational speed, is a major concern in recent years. However, conventional transmission or engine power is insufficient to provide correspondingly high power, and therefore, there is a need to design a driveline power take-off control system based on an AT automatic transmission that can address the greater power demand of complex, on-board equipment.
Disclosure of Invention
Aiming AT the problems in the prior art, the invention provides a control system and a control method of an AT automatic transmission power take-off, wherein the control system has higher safety degree and higher power take-off power, and can immediately give out corresponding fault alarm and fault treatment when faults occur.
The invention is realized by the following technical scheme:
a control system of a power take-off of an AT automatic transmission power transmission comprises an engine, an engine controller, the AT automatic transmission controller, a transmission selector, a power take-off switch of the power transmission power take-off, a transfer case and upper mounting equipment;
the output shaft of the engine is connected with the input shaft of the AT automatic transmission, the output shaft of the AT automatic transmission is connected with the input end of the transfer case, the output end of the transfer case is divided into two paths, one path is connected with the driving wheels of the vehicle, and the other path is connected with the upper mounting equipment; the transmission selector is connected with the AT automatic transmission, the engine controller is arranged on the engine, the AT transmission controller is arranged on a shell of the AT automatic transmission, and the transmission power takeoff switch is connected with the AT transmission controller.
Preferably, the transmission selector and the driveline power take-off switch are both disposed in the cab.
Preferably, an engine speed sensor is arranged on an output shaft of the engine, one end of the engine speed sensor is connected with an engine controller, and the other end of the engine speed sensor is connected with an AT transmission controller.
Preferably, the AT automatic transmission is provided with an input shaft rotation speed sensor and an output shaft rotation speed sensor, the input shaft rotation speed sensor is arranged on an input shaft of the AT automatic transmission, the output shaft rotation speed sensor is arranged on an output shaft of the AT automatic transmission, and the input shaft rotation speed sensor and the output shaft rotation speed sensor are connected with an AT transmission controller.
Preferably, a low-temperature protection functional module is arranged on a control system of the AT automatic transmission power takeoff.
Preferably, a hydraulic torque converter is arranged on the AT automatic transmission, and the loading equipment is a generator or a fire-fighting water pump.
A control method of a power take-off of an AT automatic transmission, comprising,
when the driver starts the power take-off of the power transmission system, the AT transmission controller receives the starting signal, and after the working signal that the transfer case is switched to the power take-off of the power transmission system is obtained, the AT automatic transmission enters the working mode of the power take-off of the power transmission system, when the driver places the transmission selector into the D gear from the N gear, the AT automatic transmission directly enters the high gear beyond the low gear, the rotating speed of the engine is maintained in a constant state, and power is continuously output to the loading equipment.
Preferably, the output speed of the AT automatic transmission power take-off during operation is controlled jointly by the engine speed and the AT automatic transmission gear.
Preferably, during operation of the power take-off of the transmission, the vehicle is in a stationary state, the torque converter provided on the AT automatic transmission is in a locked state, and the AT automatic transmission controls the rotational speed of the engine through the CAN bus.
Preferably, the AT transmission controller monitors the rotation speed of the engine, the rotation speed of an input shaft of the AT automatic transmission and the rotation speed information of an output shaft of the AT automatic transmission in real time, and when a vehicle is in fault or abnormal, the AT transmission controller sends the information to a whole vehicle instrument through the CAN bus to remind a driver to perform corresponding processing aiming AT different fault modes.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention provides a control system for controlling a power takeoff of a transmission system of an AT automatic transmission, which has the advantages of simple structure, convenient control implementation, high safety degree of the whole system by depending on a sensor and an actuating mechanism of the AT automatic transmission, and corresponding fault alarm and fault treatment when faults occur. Meanwhile, in the method for controlling the power take-off of the transmission system of the AT automatic transmission, larger power take-off power is provided, and the use requirements of a generator set or a fire-fighting water pump and other devices are met; the safety is strong, the AT automatic transmission is provided with a plurality of sensors for monitoring the working state, and when abnormality occurs, the AT automatic transmission is provided with corresponding processing logic, for example, the AT automatic transmission can quickly return to neutral gear to prevent abnormal movement of the vehicle; the control method of the invention has great expansion space, and the AT automatic transmission is provided with a built-in controller, so that different logics can be designed, and the special requirements under low-temperature starting or other complex working conditions can be met.
Further, the invention is provided with the low-temperature protection processing module, and the heating process of the hydraulic torque converter with a set time length is provided, when the engine enters a heating mode, the engine drives the pump impeller of the hydraulic torque converter to rotate, so that the oil in the hydraulic torque converter is continuously stirred, and after a period of time, the process of heating the vehicle is completed; at the moment, the working mode of the power take-off of the transmission system is entered, and the power take-off function of the transmission system can be well completed.
Further, the invention monitors the rotating speed of the engine, the rotating speed of the input shaft of the AT automatic transmission and the rotating speed information of the output shaft of the AT automatic transmission in real time through the AT transmission controller, and when the vehicle is in fault or abnormal, the AT transmission controller sends the information to the whole vehicle instrument through the CAN bus to remind a driver, and corresponding processing modes are provided for different fault modes.
Further, the hydraulic torque converter is arranged on the AT automatic transmission, is a special device capable of amplifying torque, plays a role in amplifying torque in a low gear range when the AT automatic transmission works normally, and is locked through a lockup clutch in a middle and high gear range, and AT the moment, a pump impeller of the hydraulic torque converter is mechanically connected with a turbine; in the middle and high gear, the hydraulic torque converter is locked, and the fuel economy is improved.
Drawings
FIG. 1 is a schematic diagram of a control system for controlling a driveline power take-off of an AT automatic transmission according to the present invention;
FIG. 2 is a flow chart of a control method for controlling a driveline power takeoff by an AT automatic transmission in accordance with the present invention;
in the figure: an engine 1, an engine controller 2, an AT automatic transmission 3, an AT transmission controller 4, an engine speed sensor 5, an input shaft speed sensor 6, an output shaft speed sensor 7, a cab 8, a transmission selector 9, a power transmission power take-off switch 10, a transfer case 11, a mounting device 12, and drive wheels 13.
Detailed Description
The invention will now be described in further detail with reference to specific examples, which are intended to illustrate, but not to limit, the invention.
The invention relates to a control system of an AT automatic transmission power take-off, as shown in fig. 1, which is characterized by comprising an engine 1, an engine controller 2, an AT automatic transmission 3, an AT Transmission Controller (TCU) 4, an engine speed sensor 5, an input shaft speed sensor 6, an output shaft speed sensor 7, a cab 8, a transmission selector 9, a power take-off (DPTO) switch 10, a transfer case 11, a mounting device 12 and driving wheels 13.
An output shaft of the engine 1 is communicated with an input shaft of an AT automatic transmission, an output shaft of the AT automatic transmission 3 is connected with an input end of a transfer case 11, and an output end of the transfer case 11 is divided into two paths, wherein one path is connected with a driving wheel 13 of a vehicle, and the other path is connected with a loading device 12; the transmission selector 9 is connected with the AT automatic transmission 3, the engine controller 2 is arranged on the engine 1, the AT transmission controller 4 is arranged on a shell of the AT automatic transmission 3, and the power train power take-off switch 10 is connected with the AT transmission controller 4.
Engine 1: the engine 1 is a source of power taking, the rotating speed of the engine 1 is controlled by an accelerator pedal, the rotating speed value of the engine can be set under specific conditions, and the AT automatic transmission 3 can also control the rotating speed of the engine; when the power take-off of the transmission system works, the power of the engine 1 does not drive wheels to run, and all the power take-off pumps are used for driving the power take-off pumps;
AT automatic transmission 3: the AT automatic transmission 3 transmits the rotation speed and torque from the engine to an output shaft, and the output shaft of the AT automatic transmission 3 is connected with a power taking pump through a transfer case; the gear position of the AT automatic transmission 3 can be controlled by the transmission selector 9; after entering the working mode of the power take-off of the transmission system, the driver can put into gear to start the power take-off of the transmission system; in order to save the power loss to a greater extent, the built-in torque converter of the AT automatic transmission 3 needs to be locked AT the same time when the power take-off of the transmission system starts to work; when the environment temperature is low, the drag torque in the AT automatic transmission 3 is large, the normal work of the power take-off of the transmission system is not facilitated, the preheating function during low-temperature starting is increased, and the starting problem of the power take-off of the transmission system during low temperature can be solved;
transmission selector 9: the transmission selector 9 is generally positioned in the cab 8 and is used as an interaction device between the AT automatic transmission and a driver, the requirement of the driver is transmitted to the AT automatic transmission 3 through the transmission selector, and the transmission selector 9 is connected with the AT automatic transmission 3 through a CAN bus;
transfer case 11: the transfer case 11 is used as a power selecting and switching device in the invention, and can select between driving wheels or driving a power takeoff; when switching to drive the power take-off, a feedback signal is required to make the AT automatic transmission 3 aware of the state AT that time;
as a preferred embodiment of the invention, the transmission selector 9 and the power train power take-off switch 10 are both arranged in the cab 8.
As a preferred embodiment of the present invention, the top-mounted device 12 in this invention may be a generator or fire pump, requiring much more power that is difficult to provide with a conventional transmission power takeoff;
as a preferred embodiment of the present invention, an engine speed sensor 5 is provided on the output shaft of the engine 1, one end of the engine speed sensor 5 is connected to the engine controller 2, and the other end of the engine speed sensor 5 is connected to the AT transmission controller 4. The AT automatic transmission 3 is provided with an input shaft rotation speed sensor 6 and an output shaft rotation speed sensor 7, the input shaft rotation speed sensor 6 is arranged on an input shaft of the AT automatic transmission 3, the output shaft rotation speed sensor 7 is arranged on an output shaft of the AT automatic transmission 3, and the input shaft rotation speed sensor 6 and the output shaft rotation speed sensor 7 are connected with the AT transmission controller 4. The sensor is a component part of the AT automatic transmission 3 and transmits the rotating speed information to the AT automatic transmission 3 in real time; the automatic transmission is connected with the AT 3 through a wire harness; the signal of the sensor enters the control logic and can be used as judgment of starting conditions or triggering of abnormal signals.
As a preferred embodiment of the present invention, the control system of the transmission power take-off of the AT automatic transmission is provided with a low-temperature protection function module, which has a low-temperature protection function, when the ambient temperature is lower than a preset value, the AT automatic transmission 3 controls the engine speed through CAN bus information, and has a control time which CAN be set, so that the oil temperature of the transmission is rapidly increased, and the viscous resistance of the oil of the AT automatic transmission 3 AT low temperature is overcome.
The AT automatic transmission 3 is provided with a hydraulic torque converter which is a special device capable of amplifying torque, when the AT automatic transmission 3 works normally, the hydraulic torque converter plays a role in amplifying torque in a low gear range, and in a middle and high gear range, the hydraulic torque converter is locked through a locking clutch, and AT the moment, a pump impeller of the hydraulic torque converter is connected with a turbine machine; in the middle and high gear, the hydraulic torque converter is locked, and the fuel economy is improved.
The invention relates to a control method of a power take-off of an AT automatic transmission, which comprises the following steps of,
when the driver starts the power take-off of the power transmission system, the AT transmission controller 4 receives the start signal, acquires the working signal of the transfer case for switching to the power take-off of the power transmission system, and then the AT automatic transmission 3 enters the working mode of the power take-off of the power transmission system, the working mode is different from the normal driving mode, when the driver places the transmission selector from N gear to D gear, the AT automatic transmission 3 directly enters the high gear beyond the low gear, the rotating speed of the engine is maintained in a constant state, and power is continuously output to the loading equipment 12.
The output rotation speed of the AT automatic transmission power take-off during the working process is jointly controlled by the rotation speed of the engine 1 and the gear position of the AT automatic transmission 3.
The vehicle is in a static state in the power taking process, so that the vehicle is ensured not to run; during the power take-off process, the torque converter of the AT automatic transmission 3 is in a locked state; in order to lock up the torque converter, the transmission needs to control the rotational speed of the engine through the CAN bus; during the power take-off process, when the engine speed changes, the torque converter is generally not unlocked until the engine speed is too low.
The control method comprises the following steps that an AT transmission controller 4 monitors the rotating speed of an engine 1, the rotating speed of an input shaft of an AT automatic transmission 3 and the rotating speed information of an output shaft of the AT automatic transmission 3 in real time, when a vehicle breaks down or is abnormal, the AT transmission controller 4 sends the information to a whole vehicle instrument through a CAN bus to remind a driver, and corresponding processing is carried out aiming AT different fault modes.
A preferred embodiment is as follows:
see in particular the control logic diagram depicted in fig. 2:
a) Requesting the power take-off of the drive train to operate;
b) Receiving a force taking pump combination command;
c) Comprehensively analyzing the environment temperature, the engine rotating speed, the input shaft rotating speed and the output shaft rotating speed, and entering different control logics;
d) The power take-off of the transmission system works;
e) Power train power takeoff exception handling;
f) The driveline power take-off is exited.
The preferred embodiments are as follows,
a method of controlling a driveline power take-off for an AT automatic transmission, said control method comprising the steps of:
when a driver needs to start the power take-off of the power transmission, firstly, a power take-off switch of the power transmission is pressed down, AT the moment, a controller of the AT automatic transmission detects a switch signal, and then, the driver waits for a work combination signal of the transfer case to be switched to the power take-off; when the combined signal also enters the gearbox controller, the AT automatic transmission enters a power take-off working mode of the transmission system, and the working mode is different from a normal driving mode; when a driver places a transmission selector positioned in a cab from N gear to D gear, the transmission does not start to work from 1 gear, but passes through a low gear and directly enters a high gear, such as 4 gear or 5 gear, at the moment, the rotating speed of a general engine is also controlled by the whole vehicle, namely, the rotating speed of the engine can be maintained at a constant value without pressing an accelerator pedal in the cab; when the transmission power take-off works, the engine speed is constant, the gear of the AT automatic transmission is fixed, and a stable rotating speed can be obtained and provided for the loading equipment of the whole vehicle, such as power generation equipment or a fire water pump, the loading equipment needs continuous and stable power input, and the transmission power take-off based on the AT automatic transmission can just provide the rotating speed and torque output under the special working condition.
As a preferred embodiment, the control method of the AT automatic transmission control power take-off device has the advantages that when the control method is in a low-temperature environment, the viscosity of oil is high, the oil way of the AT automatic transmission is possibly unsmooth, enough pressure cannot be built, the clutch can slip or wear, a special design for raising the temperature is needed, the control method in the invention provides a heating process of the hydraulic torque converter with a set time period, and when the control method enters a heating mode, an engine drives a pump wheel of the hydraulic torque converter to rotate so as to continuously stir the oil in the hydraulic torque converter, so that the process of heating a vehicle is completed after a period of time; at the moment, the working mode of the power take-off of the transmission system is entered, and the power take-off function of the transmission system can be well completed.
As a preferred embodiment, the output rotation speed of the power train power take-off is jointly controlled by the engine rotation speed and the AT automatic transmission gear, and because the torque converter of the AT automatic transmission is in a locking state when the power train power take-off works, namely, the engine rotation speed is equal to the input rotation speed of the AT automatic transmission, and the output rotation speed of the AT automatic transmission is in a speed ratio relation with the input rotation speed, the output rotation speed of the specific power train power take-off is required, and a certain engine rotation speed and a corresponding AT automatic transmission gear can be obtained through adjustment of the engine rotation speed and the AT automatic transmission gear and calculation; when the power take-off of the transmission is needed to work, the AT automatic transmission passes through the low gear and directly enters the designed target gear when a driver operates the gear shifting handle in the cab.
In summary, the control system for the AT automatic transmission control power take-off of the invention has simple structure, convenient control implementation, high safety degree of the whole system by depending on the sensor and the actuating mechanism of the AT automatic transmission, and corresponding fault alarm and fault treatment when faults occur. Meanwhile, in the method for controlling the power take-off of the transmission system of the AT automatic transmission, larger power take-off power is provided, and the use requirements of a generator set or a fire pump and other devices are met; the safety is strong, the AT automatic transmission is provided with a plurality of sensors for monitoring the working state, and when abnormality occurs, the AT automatic transmission is provided with corresponding processing logic, for example, the AT automatic transmission can quickly return to neutral gear to prevent abnormal movement of the vehicle; the control method of the invention has great expansion space, and the AT automatic transmission is provided with a built-in controller, so that different logics can be designed, and the special requirements under low-temperature starting or other complex working conditions can be met.
Claims (8)
1. The control system of the AT automatic transmission power takeoff is characterized by comprising an engine (1), an engine controller (2), an AT automatic transmission (3), an AT transmission controller (4), a transmission selector (9), a power takeoff switch (10) of the power takeoff of the transmission, a transfer case (11) and a mounting device (12);
an output shaft of the engine (1) is connected with an input shaft of the AT automatic transmission (3), the output shaft of the AT automatic transmission (3) is connected with an input end of the transfer case (11), the output end of the transfer case (11) is divided into two paths, one path is connected with a driving wheel (13) of a vehicle, and the other path is connected with a loading device (12); the transmission selector (9) is connected with the AT automatic transmission (3), the engine controller (2) is arranged on the engine (1), the AT transmission controller (4) is arranged on a shell of the AT automatic transmission (3), and the transmission power takeoff switch (10) is connected with the AT transmission controller (4);
the control method of the AT automatic transmission power take-off comprises the following steps,
when a driver starts the power take-off of the power transmission system, the AT transmission controller (4) receives an opening signal, and after acquiring a working signal of the transfer case (11) for switching to the power take-off of the power transmission system, the AT automatic transmission (3) enters a working mode of the power take-off of the power transmission system, when the driver places the transmission selector (9) in a D gear from an N gear, the AT automatic transmission (3) directly enters a high gear beyond a low gear, the rotating speed of the engine (1) is maintained in a constant state, and power is continuously output to the loading equipment (12);
during the operation of the power take-off of the transmission, the vehicle is in a static state, a hydraulic torque converter arranged on the AT automatic transmission (3) is in a locking state, and the AT automatic transmission (3) controls the rotating speed of the engine (1) through a CAN bus.
2. Control system of an AT automatic transmission power take-off according to claim 1, characterized in that the transmission selector (9) and the power take-off switch (10) are both arranged in the cab (8).
3. The control system of the AT automatic transmission power take-off as claimed in claim 1, wherein an engine speed sensor (5) is arranged on an output shaft of the engine (1), one end of the engine speed sensor (5) is connected with the engine controller (2), and the other end of the engine speed sensor (5) is connected with the AT transmission controller (4).
4. The control system of an AT automatic transmission power take-off according to claim 1, characterized in that an input shaft rotation speed sensor (6) and an output shaft rotation speed sensor (7) are arranged on the AT automatic transmission (3), the input shaft rotation speed sensor (6) is arranged on an input shaft of the AT automatic transmission (3), the output shaft rotation speed sensor (7) is arranged on an output shaft of the AT automatic transmission (3), and the input shaft rotation speed sensor (6) and the output shaft rotation speed sensor (7) are connected with the AT automatic transmission controller (4).
5. The control system of an AT automatic transmission power take-off of claim 1, wherein the AT automatic transmission power take-off control system is provided with a low temperature protection function module.
6. The control system of an AT automatic transmission power take-off according to claim 1, characterized in that a torque converter is provided on the AT automatic transmission (3), and the loading device (12) is a generator or a fire pump.
7. A control system of an AT automatic transmission power take-off according to claim 1, characterized in that the output rotational speed of the AT automatic transmission power take-off during operation is controlled jointly by the rotational speed of the engine (1) and the gear of the AT automatic transmission (3).
8. The control system of the AT automatic transmission power take-off according to claim 1, wherein the AT automatic transmission controller (4) monitors the rotation speed of the engine (1), the rotation speed of the input shaft of the AT automatic transmission (3) and the rotation speed information of the output shaft of the AT automatic transmission (3) in real time, and when the vehicle is in fault or abnormal, the AT automatic transmission controller (4) sends the information to the whole vehicle instrument through the CAN bus to remind a driver to perform corresponding treatment for different fault modes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210311437.1A CN114719019B (en) | 2022-03-28 | 2022-03-28 | Control system and control method for power takeoff of AT automatic transmission drive line |
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| CN202210311437.1A CN114719019B (en) | 2022-03-28 | 2022-03-28 | Control system and control method for power takeoff of AT automatic transmission drive line |
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| CN114719019A CN114719019A (en) | 2022-07-08 |
| CN114719019B true CN114719019B (en) | 2023-11-07 |
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| CN115503682A (en) * | 2022-09-23 | 2022-12-23 | 陕西法士特齿轮有限责任公司 | Engine starting method based on P2 framework hybrid power system in advancing process |
| CN117628171B (en) * | 2023-11-17 | 2025-02-25 | 东风商用车有限公司 | Driving operation vehicle AMT control method, system, device and readable storage medium |
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85107242A (en) * | 1984-10-09 | 1987-03-25 | 罗纳德·E·达本斯帕克 | Control method of automatic transmission |
| JP2000274275A (en) * | 1999-03-25 | 2000-10-03 | Mitsubishi Motors Corp | Idle stop device for vehicles with automatic transmission |
| JP2004162828A (en) * | 2002-11-14 | 2004-06-10 | Toyota Motor Corp | Fluid coupling and vehicle power transmission device |
| JP2004353827A (en) * | 2003-05-30 | 2004-12-16 | Suzuki Motor Corp | Shifting device of automatic transmission for vehicle |
| JP2006070983A (en) * | 2004-09-01 | 2006-03-16 | Mitsubishi Agricult Mach Co Ltd | Work vehicle |
| JP2009236132A (en) * | 2008-03-25 | 2009-10-15 | Toyota Motor Corp | Torque converter control device |
| CN102421622A (en) * | 2009-05-14 | 2012-04-18 | Zf腓德烈斯哈芬股份公司 | Drive system for a motor vehicle with a power take-off clutch |
| CN103148210A (en) * | 2013-02-25 | 2013-06-12 | 陕西法士特齿轮有限责任公司 | Rear power take-off control system with backset mechanism for gearbox |
| JP2013123924A (en) * | 2011-12-13 | 2013-06-24 | Ud Trucks Corp | Pto mechanism |
| CN103303226A (en) * | 2013-06-06 | 2013-09-18 | 东风汽车公司 | Single-H operated power takeoff control system capable of canceling traveling power take-off and use method of single-H operated power takeoff control system |
| JP2015045356A (en) * | 2013-08-27 | 2015-03-12 | 三菱ふそうトラック・バス株式会社 | Changeover control device for transfer pto |
| CN104477780A (en) * | 2014-12-04 | 2015-04-01 | 徐州重型机械有限公司 | Device and method for controlling crane operation speed |
| JP2015224679A (en) * | 2014-05-27 | 2015-12-14 | 三菱ふそうトラック・バス株式会社 | Pto mounted vehicle |
| CN205292289U (en) * | 2015-11-24 | 2016-06-08 | 重庆市大足区陈加机械厂 | Thoughtlessly starch car driving system |
| CN106369133A (en) * | 2016-09-09 | 2017-02-01 | 广西柳工机械股份有限公司 | Multi-gear hydrodynamic transmission |
| CN107097632A (en) * | 2017-04-28 | 2017-08-29 | 东风商用车有限公司 | Power take-off structure of automatic-gear hybrid power sanitation vehicle and control method thereof |
| CN108087540A (en) * | 2017-11-29 | 2018-05-29 | 东风商用车有限公司 | AMT power takeoff control system and control method thereof |
| CN109058403A (en) * | 2018-08-06 | 2018-12-21 | 陕西法士特齿轮有限责任公司 | A kind of power-diversion stepiess variable drive system |
| CN110469639A (en) * | 2019-08-29 | 2019-11-19 | 河南科技大学 | A kind of tractor full power power-shift gear box |
| CN110712521A (en) * | 2019-09-24 | 2020-01-21 | 西安法士特汽车传动有限公司 | Transmission power takeoff system for pure electric vehicle and control method thereof |
| CN113212411A (en) * | 2021-05-28 | 2021-08-06 | 东风越野车有限公司 | Coordinated control method and device for transmission power takeoff and transfer case power takeoff |
| CN113561768A (en) * | 2021-08-19 | 2021-10-29 | 长沙中联重科环境产业有限公司 | Control system and method for driving heavy load by chassis power takeoff and environmental sanitation operation vehicle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE524975C2 (en) * | 2003-12-17 | 2004-11-02 | Volvo Lastvagnar Ab | Automatic gear-changing process is for vehicle with coupling-dependent power take-off connected when vehicle is in movement |
| JP2011174579A (en) * | 2010-02-25 | 2011-09-08 | Jatco Ltd | Oil-temperature correction device for automatic transmission |
| US10442423B2 (en) * | 2016-02-24 | 2019-10-15 | Allison Transmission, Inc. | Transmission internal PTO clutch and method of control |
| US11247655B2 (en) * | 2019-07-11 | 2022-02-15 | GM Global Technology Operations LLC | Hybrid propulsion system |
-
2022
- 2022-03-28 CN CN202210311437.1A patent/CN114719019B/en active Active
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85107242A (en) * | 1984-10-09 | 1987-03-25 | 罗纳德·E·达本斯帕克 | Control method of automatic transmission |
| JP2000274275A (en) * | 1999-03-25 | 2000-10-03 | Mitsubishi Motors Corp | Idle stop device for vehicles with automatic transmission |
| JP2004162828A (en) * | 2002-11-14 | 2004-06-10 | Toyota Motor Corp | Fluid coupling and vehicle power transmission device |
| JP2004353827A (en) * | 2003-05-30 | 2004-12-16 | Suzuki Motor Corp | Shifting device of automatic transmission for vehicle |
| JP2006070983A (en) * | 2004-09-01 | 2006-03-16 | Mitsubishi Agricult Mach Co Ltd | Work vehicle |
| JP2009236132A (en) * | 2008-03-25 | 2009-10-15 | Toyota Motor Corp | Torque converter control device |
| CN102421622A (en) * | 2009-05-14 | 2012-04-18 | Zf腓德烈斯哈芬股份公司 | Drive system for a motor vehicle with a power take-off clutch |
| JP2013123924A (en) * | 2011-12-13 | 2013-06-24 | Ud Trucks Corp | Pto mechanism |
| CN103148210A (en) * | 2013-02-25 | 2013-06-12 | 陕西法士特齿轮有限责任公司 | Rear power take-off control system with backset mechanism for gearbox |
| CN103303226A (en) * | 2013-06-06 | 2013-09-18 | 东风汽车公司 | Single-H operated power takeoff control system capable of canceling traveling power take-off and use method of single-H operated power takeoff control system |
| JP2015045356A (en) * | 2013-08-27 | 2015-03-12 | 三菱ふそうトラック・バス株式会社 | Changeover control device for transfer pto |
| JP2015224679A (en) * | 2014-05-27 | 2015-12-14 | 三菱ふそうトラック・バス株式会社 | Pto mounted vehicle |
| CN104477780A (en) * | 2014-12-04 | 2015-04-01 | 徐州重型机械有限公司 | Device and method for controlling crane operation speed |
| CN205292289U (en) * | 2015-11-24 | 2016-06-08 | 重庆市大足区陈加机械厂 | Thoughtlessly starch car driving system |
| CN106369133A (en) * | 2016-09-09 | 2017-02-01 | 广西柳工机械股份有限公司 | Multi-gear hydrodynamic transmission |
| CN107097632A (en) * | 2017-04-28 | 2017-08-29 | 东风商用车有限公司 | Power take-off structure of automatic-gear hybrid power sanitation vehicle and control method thereof |
| CN108087540A (en) * | 2017-11-29 | 2018-05-29 | 东风商用车有限公司 | AMT power takeoff control system and control method thereof |
| CN109058403A (en) * | 2018-08-06 | 2018-12-21 | 陕西法士特齿轮有限责任公司 | A kind of power-diversion stepiess variable drive system |
| CN110469639A (en) * | 2019-08-29 | 2019-11-19 | 河南科技大学 | A kind of tractor full power power-shift gear box |
| CN110712521A (en) * | 2019-09-24 | 2020-01-21 | 西安法士特汽车传动有限公司 | Transmission power takeoff system for pure electric vehicle and control method thereof |
| CN113212411A (en) * | 2021-05-28 | 2021-08-06 | 东风越野车有限公司 | Coordinated control method and device for transmission power takeoff and transfer case power takeoff |
| CN113561768A (en) * | 2021-08-19 | 2021-10-29 | 长沙中联重科环境产业有限公司 | Control system and method for driving heavy load by chassis power takeoff and environmental sanitation operation vehicle |
Non-Patent Citations (3)
| Title |
|---|
| 发动机及取力装置转速自动控制系统的研发;李兰英;赵殿华;张华;;专用汽车(第10期);全文 * |
| 发动机和底盘取力系统智能控制的研究;尚利国;禚圆圆;;农业装备与车辆工程(第11期);全文 * |
| 消防车用断轴式取力器的原理和应用;魏永建;;装备机械(第03期);全文 * |
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