CN215705628U - Double-motor input electric loader walking power system - Google Patents
Double-motor input electric loader walking power system Download PDFInfo
- Publication number
- CN215705628U CN215705628U CN202121764054.7U CN202121764054U CN215705628U CN 215705628 U CN215705628 U CN 215705628U CN 202121764054 U CN202121764054 U CN 202121764054U CN 215705628 U CN215705628 U CN 215705628U
- Authority
- CN
- China
- Prior art keywords
- shaft
- gear
- main
- auxiliary
- driving motor
- 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.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 45
- 238000006073 displacement reaction Methods 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 13
- 238000011217 control strategy Methods 0.000 abstract description 13
- 230000008878 coupling Effects 0.000 description 14
- 238000010168 coupling process Methods 0.000 description 14
- 238000005859 coupling reaction Methods 0.000 description 14
- 230000008859 change Effects 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses a dual-motor input electric loader walking power system which comprises a driving motor and a gearbox, wherein the driving motor is connected with an input shaft of the gearbox; the driving motor comprises a main driving motor and an auxiliary driving motor, the gearbox comprises a main driving input shaft, an auxiliary driving input shaft, a middle shaft and an output shaft, the main driving motor is connected with the main driving input shaft, and the auxiliary driving motor is connected with the auxiliary driving input shaft; the main drive input shaft is connected with the output shaft through a gear transmission pair, and the intermediate shaft is connected with the auxiliary drive input shaft and the output shaft through the gear transmission pair respectively. Has the advantages that: according to the utility model, only the main driving motor is started under the light load working condition, so that more energy can be saved, and the cruising ability of the whole vehicle is improved; through the matching of different transmission routes of the two motors, the whole loader obtains larger traction force; the main controller selects a corresponding control strategy according to the current working condition, and automatic control of the gearbox is achieved.
Description
Technical Field
The utility model relates to a walking power system of engineering machinery, in particular to a double-motor input electric loader walking power system, and belongs to the technical field of engineering machinery.
Background
The traditional engineering machinery mainly uses diesel oil as fuel, increases environmental pollution and also seriously wastes energy. In order to improve the situation, many engineering machinery manufacturers invest in developing new energy vehicles, which is of great significance for reducing environmental pollution and saving energy. The loader is one of the most widely used devices in engineering machinery, and a plurality of host manufacturers all release own pure electric loader products.
The pure electric loader runs and works, energy is derived from a vehicle-mounted power battery, and power is output through a motor; the walking system of the pure electric loader takes a motor and a gearbox as power output to drive the whole vehicle to run. At present, a pure electric loader usually adopts a single motor and a single-power-input gearbox as power output to drive the whole vehicle to run.
The loader only needs to output larger traction force under the heavy-load working condition when carrying out shovel loading; other working conditions are light load working conditions, and only small traction force needs to be output; the loader has short operation time under the heavy load working condition in the whole operation process, and the loader is under the light load working condition in most of the time. However, in order to meet the requirement of the heavy-load working condition, the high-power motor meeting the requirement of the heavy-load working condition must be selected when the driving motor is in type selection; selecting a high power motor can cause problems of high overall cost, large current, low motor efficiency, and the like.
Disclosure of Invention
The purpose of the utility model is as follows: the utility model aims to provide a dual-motor input electric loader walking power system aiming at the problems in the prior art. Two driving motors with smaller power can be selected through the double-motor structure, so that the driving efficiency of the driving motors can be effectively improved, and the cost is reduced.
The technical scheme is as follows: a walking power system of an electric loader with double-motor input comprises a driving motor and a gearbox, wherein the driving motor is connected with an input shaft of the gearbox; the driving motor comprises a main driving motor and an auxiliary driving motor, the gearbox comprises a main driving input shaft, an auxiliary driving input shaft, a middle shaft and an output shaft, the main driving motor is connected with the main driving input shaft, and the auxiliary driving motor is connected with the auxiliary driving input shaft; the main drive input shaft is connected with the output shaft through a gear transmission pair, the intermediate shaft is positioned between the auxiliary drive input shaft and the output shaft, and the intermediate shaft is connected with the auxiliary drive input shaft and the output shaft through the gear transmission pair respectively.
The main driving motor and the auxiliary driving motor jointly provide power for the output shaft, the main driving motor and the auxiliary driving motor can meet the requirement of the loader on a heavy-load working condition in a short time after confluence, and the main driving motor can meet the requirement of most of the loader on a light-load working condition; and only the main driving motor is started under the light load working condition, so that more energy can be saved, and the cruising ability of the whole vehicle is improved.
Preferably, in order to simplify the structure of the transmission, an input shaft gear is arranged on the main drive input shaft, an output shaft gear is fixedly mounted on the output shaft, an auxiliary drive shaft gear is arranged on the auxiliary drive input shaft, and an intermediate shaft second gear are respectively arranged on the intermediate shaft; the output shaft gear is simultaneously meshed with the input shaft gear and a middle shaft second gear, the middle shaft second gear and the middle shaft second gear are coaxial, and the middle shaft second gear is meshed with the auxiliary driving shaft gear; a main transmission clutch C is arranged between the input shaft gear and the main drive input shaft1. Can stably and reliably transmit power through reliable gear pair transmission, and adopts a main transmission clutch C1Can cut off the transmission of power when starting and stopping, and is saferEnergy is saved; through the matching of different transmission routes of the two motors, the whole loader can obtain larger traction force.
Preferably, in order to realize the coupling of the auxiliary driving motor in the heavy-load working condition, the auxiliary driving shaft gear is fixedly connected with the auxiliary driving input shaft; the intermediate shaft second gear is fixedly arranged on the intermediate shaft, and an auxiliary transmission clutch C is arranged between the intermediate shaft first gear and the intermediate shaft2。
Preferably, in order to realize the coupling of the auxiliary driving motor in the heavy-load working condition, the intermediate shaft second gear and the intermediate shaft second gear are respectively and fixedly connected with the intermediate shaft, and an auxiliary transmission clutch C is arranged between the auxiliary driving shaft gear and the auxiliary driving input shaft2。
Preferably, in order to judge the operating condition of the loader and realize automatic gear shifting of the gearbox, a main drive rotating speed sensor B for measuring the rotating speed of a main drive motor is arranged in the gearbox1And an output rotation speed sensor B for measuring the rotation speed of the output shaft3. The rotating speed of the main driving motor and the rotating speed of the output shaft are collected to provide a basis for judging the working condition of the loader and coupling the auxiliary driving motor.
Preferably, in order to realize automatic gear shifting of the gearbox, an auxiliary driving rotating speed sensor B for measuring the rotating speed of an auxiliary driving motor is arranged in the gearbox2. By auxiliary driving of a speed sensor B2The rotating speed of the auxiliary driving motor can be measured, and a basis is provided for coupling of the auxiliary driving motor under the heavy-load working condition.
Preferably, in order to realize automatic gear shifting of the gearbox, the automatic gear shifting device further comprises a main controller, a gear selector and an accelerator pedal displacement sensor, wherein the gear selector sends a control signal to the main controller, and the main driving rotation speed sensor B1Output speed sensor B3Auxiliary driving speed sensor B2The signals of the accelerator pedal displacement sensor and the signals of the accelerator pedal displacement sensor are simultaneously transmitted to the main controller; the main controller respectively controls the main drive clutch C of the gearbox1And auxiliary drive clutch C2And a main drive motor and an auxiliary drive motor. Driver passing gearThe position selector gives out vehicle running command, and the main controller sends out vehicle running command through the accelerator pedal displacement sensor and the output rotating speed sensor B3The main controller selects a corresponding control strategy according to the current working condition, and the main controller respectively controls a main transmission clutch C of the gearbox1And auxiliary drive clutch C2And controlling the rotation speed of the auxiliary driving motor to realize the switching between the control strategies, and realizing the automatic control of the gearbox.
A control method of a double-motor input electric loader walking power system comprises the following steps:
step one, the gear of the gearbox is in a neutral position in an initial state, and the driving transmission clutch C1And auxiliary drive clutch C2Simultaneously separating;
step two, the gear selector sends out a control command to start the main driving motor, and the main controller is used for sensing the displacement of the accelerator pedal and the output rotating speed according to the displacement sensor B3Judging the current working condition by the signal; entering a third step under a light load working condition; when the working condition is heavy, entering the step four;
step three, a light load control strategy: main drive clutch C1Engaging, while assisting in driving the clutch C2Separating, the power output by the main drive motor passes through the main drive input shaft and the main drive clutch C in sequence1The input shaft gear and the output shaft gear are transmitted to the output shaft;
step four, overloading a control strategy: main drive clutch C1Firstly, the power output by the main drive motor passes through the main drive input shaft and the main drive clutch C in sequence1And the input shaft gear is transmitted to the output shaft gear; the main controller adjusts the rotation speed of the auxiliary driving motor to be matched with the rotation speed of the output shaft, and then the auxiliary driving clutch C2The power output by the auxiliary driving motor is converged to the output shaft gear through the auxiliary driving input shaft, the auxiliary driving shaft gear, the intermediate shaft second gear, the intermediate shaft and the intermediate shaft second gear in sequence, and the converged power is output by the output shaft;
step five, automatic gear shifting: sensor for main controller according to output speedB3And the signal of the accelerator pedal displacement sensor judges the change of the working condition; switching a control strategy in real time according to the current working condition;
step six, stopping the machine: and the gear of the gearbox is restored to a neutral state.
The control method of the utility model realizes the automatic gear shifting of the gearbox according to the change of the working condition in the process from the vehicle starting to the vehicle running.
The preference, in order to judge the current operating mode accurately, at first, set up main control unit and judge the parameter: dividing a region I into a heavy load region, a region II into a transition region and a region III into a light load region by combining the displacement parameter of the accelerator pedal displacement sensor and the output rotating speed parameter of the output shaft;
then, the main controller collects data: sensor B for measuring displacement parameters and output rotating speed according to displacement sensor of accelerator pedal3Measuring the output rotating speed value of the output shaft;
finally, the main controller judges the working condition: sensor B for measuring displacement parameters and output rotating speed of accelerator pedal displacement sensor3When the measured output rotating speed value of the output shaft is in the range of the area I set by the main controller, the main controller judges the heavy load working condition and drives the transmission clutch C1And auxiliary drive clutch C2Simultaneously engaging; sensor B for measuring displacement parameters and output rotating speed of accelerator pedal displacement sensor3When the measured output rotating speed value of the output shaft is in the range of the area II set by the main controller, the main controller judges the transition working condition and drives the transmission clutch C1And auxiliary drive clutch C2Keeping the original state; sensor B for measuring displacement parameters and output rotating speed of accelerator pedal displacement sensor3When the measured output rotating speed value of the output shaft is in the range of the area III set by the main controller, the main controller judges the light load working condition and drives the transmission clutch C1Engaging, while assisting in driving the clutch C2And (5) separating.
Preferably, in order to realize the power coupling of the auxiliary driving motor, the method for matching the rotation speed of the auxiliary driving motor with the rotation speed of the output shaft in the fourth step is as follows:
obtaining a main drive motor to outputTransmission ratio of the shaft iM1=Z5/Z4；
Obtaining a transmission ratio i of an auxiliary drive motor to an output shaftM2=(Z2/Z1)×( Z5/Z3)；
In the formula, Z1Number of teeth of gear for auxiliary drive shaft, Z2Number of teeth of first gear of intermediate shaft, Z3Number of teeth of the second gear of the intermediate shaft, Z4Number of teeth of main drive shaft gear, Z5The number of teeth of the output shaft gear;
main driving speed sensor B1Measuring the rotation speed of the main drive motor
；
According to the coupling principle of the main driving motor and the auxiliary driving motor,
rotation speed calculation value of auxiliary driving motor
；
The main controller adjusts the rotation speed measured value of the auxiliary driving motor to the rotation speed calculated value
Auxiliary drive speed sensor B2Actually measuring the rotating speed measured value of the auxiliary driving motor, and when the rotating speed measured value is equal to the rotating speed calculated value, the auxiliary driving clutch C2And (6) jointing.
Has the advantages that: the main driving motor and the auxiliary driving motor jointly provide power for the output shaft, the main driving motor and the auxiliary driving motor can meet the requirement of the loader on a heavy-load working condition in a short time after confluence, and the main driving motor can meet the requirement of most of the loader on a light-load working condition; only the main driving motor is started under the light load working condition, so that more energy can be saved, and the whole vehicle is improvedEndurance of the vehicle; through the matching of different transmission routes of the two motors, the whole loader obtains larger traction force; the driver gives out a vehicle running command through the gear selector, and the main controller sends out a vehicle running command through the accelerator pedal displacement sensor and the main driving rotating speed sensor B1The main controller selects a corresponding control strategy according to the current working condition, and the main controller respectively controls a main transmission clutch C of the gearbox1And auxiliary drive clutch C2And controlling the rotation speed of the auxiliary driving motor to realize the switching between the control strategies, and realizing the automatic control of the gearbox.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of a second embodiment of the present invention;
FIG. 3 is a control schematic of the present invention;
fig. 4 is a schematic diagram of the automatic shift schedule of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example one
As shown in fig. 1, the walking power system of the electric loader with dual-motor input comprises a driving motor 1 and a gearbox 2, wherein the driving motor 1 is connected with an input shaft of the gearbox 2; the driving motor 1 comprises a main driving motor 11 and an auxiliary driving motor 12, the gearbox 2 comprises a main driving input shaft 21, an auxiliary driving input shaft 22, an intermediate shaft 23 and an output shaft 24, the main driving motor 11 is connected with the main driving input shaft 21, and the auxiliary driving motor 12 is connected with the auxiliary driving input shaft 22; the main drive input shaft 21 and the output shaft 24 are connected through a gear transmission pair, the intermediate shaft 23 is located between the auxiliary drive input shaft 22 and the output shaft 24, and the intermediate shaft 23 is connected with the auxiliary drive input shaft 22 and the output shaft 24 through the gear transmission pair respectively.
According to the utility model, the main driving motor 11 and the auxiliary driving motor 12 jointly provide power for the output shaft 24, the main driving motor 11 and the auxiliary driving motor 12 can meet the requirement of the loader on a heavy-load working condition in a short time after confluence, and the main driving motor 11 can meet the requirement of most of the loader on a light-load working condition; and only the main driving motor 11 is started under a light-load working condition, so that more energy can be saved, and the cruising ability of the whole vehicle is improved.
In order to simplify the structure of the transmission 2, a main drive shaft gear 211 is arranged on the main drive input shaft 21, an output shaft gear 241 is fixedly arranged on the output shaft 24, an auxiliary drive shaft gear 221 is arranged on the auxiliary drive input shaft 22, and an intermediate shaft first gear 231 and an intermediate shaft second gear 232 are respectively arranged on the intermediate shaft 23; the output shaft gear 241 meshes with both the main drive shaft gear 211 and the counter shaft second gear 232, the counter shaft first gear 231 and the counter shaft second gear 232 are coaxial, and the counter shaft first gear 231 meshes with the auxiliary drive shaft gear 221; a main transmission clutch C is arranged between the main driving shaft gear 211 and the main driving input shaft 21125. Can stably and reliably transmit power through reliable gear pair transmission, and adopts a main transmission clutch C 125 can cut off the transmission of power when starting and stopping, thereby being safer and more energy-saving.
In order to realize the coupling of the auxiliary driving motor 12 in the heavy load working condition, the auxiliary driving shaft gear 221 is fixedly connected with the auxiliary driving input shaft 22; the intermediate shaft second gear 232 is fixedly arranged on the intermediate shaft 23, and an auxiliary transmission clutch C is arranged between the intermediate shaft first gear 231 and the intermediate shaft 23226。
In order to judge the operation condition of the loader and realize the automatic gear shifting of the gearbox 2, a main drive rotating speed sensor B for measuring the rotating speed of a main drive motor 11 is arranged in the gearbox 213 and an output speed sensor B for measuring the speed of the output shaft 2434. The judgment of the working condition of the loader and the coupling of the auxiliary driving motor 12 are provided by acquiring the rotating speed of the main driving motor 11 and the rotating speed of the output shaft 24.
In order to realize the automatic gear shifting of the gearbox 2, an auxiliary driving rotating speed sensor B for measuring the rotating speed of an auxiliary driving motor 12 is arranged in the gearbox 225. By auxiliary driving of a speed sensor B25 can measureThe rotation speed of the auxiliary driving motor 12 provides a basis for coupling of the auxiliary driving motor under a heavy load condition.
Example two
As shown in fig. 2, the walking power system of the electric loader with dual-motor input comprises a driving motor 1 and a gearbox 2, wherein the driving motor 1 is connected with an input shaft of the gearbox 2; the driving motor 1 comprises a main driving motor 11 and an auxiliary driving motor 12, the gearbox 2 comprises a main driving input shaft 21, an auxiliary driving input shaft 22, an intermediate shaft 23 and an output shaft 24, the main driving motor 11 is connected with the main driving input shaft 21, and the auxiliary driving motor 12 is connected with the auxiliary driving input shaft 22; the main drive input shaft 21 and the output shaft 24 are connected through a gear transmission pair, the intermediate shaft 23 is located between the auxiliary drive input shaft 22 and the output shaft 24, and the intermediate shaft 23 is connected with the auxiliary drive input shaft 22 and the output shaft 24 through the gear transmission pair respectively.
According to the utility model, the main driving motor 11 and the auxiliary driving motor 12 jointly provide power for the output shaft 24, the main driving motor 11 and the auxiliary driving motor 12 can meet the requirement of the loader on a heavy-load working condition in a short time after confluence, and the main driving motor 11 can meet the requirement of most of the loader on a light-load working condition; and only the main driving motor 11 is started under a light-load working condition, so that more energy can be saved, and the cruising ability of the whole vehicle is improved.
In order to simplify the structure of the transmission 2, a main drive shaft gear 211 is arranged on the main drive input shaft 21, an output shaft gear 241 is fixedly arranged on the output shaft 24, an auxiliary drive shaft gear 221 is arranged on the auxiliary drive input shaft 22, and an intermediate shaft first gear 231 and an intermediate shaft second gear 232 are respectively arranged on the intermediate shaft 23; the output shaft gear 241 meshes with both the main drive shaft gear 211 and the counter shaft second gear 232, the counter shaft first gear 231 and the counter shaft second gear 232 are coaxial, and the counter shaft first gear 231 meshes with the auxiliary drive shaft gear 221; a main transmission clutch C is arranged between the main driving shaft gear 211 and the main driving input shaft 21125. Can stably and reliably transmit power through reliable gear pair transmission, and adopts a main transmission clutch C 125 at start-up and shut-down canThe transmission of power is cut off, and the device is safer and more energy-saving.
In order to realize the coupling of the auxiliary driving motor 12 in the heavy load working condition, the intermediate shaft first gear 231 and the intermediate shaft second gear 232 are respectively and fixedly connected with the intermediate shaft 23, and an auxiliary transmission clutch C is arranged between the auxiliary driving shaft gear 221 and the auxiliary driving input shaft 22226。
In order to realize the judgment of the operation condition of the loader and the automatic gear shifting of the gearbox 2 and realize the judgment of the operation condition of the loader and the automatic gear shifting of the gearbox 2, a main driving rotating speed sensor B for measuring the rotating speed of a main driving motor 11 is arranged in the gearbox 213 and an output speed sensor B for measuring the speed of the output shaft 2434. The judgment of the working condition of the loader and the coupling of the auxiliary driving motor 12 are provided by acquiring the rotating speed of the main driving motor 11 and the rotating speed of the output shaft 24.
In order to realize the automatic gear shifting of the gearbox 2, an auxiliary driving rotating speed sensor B for measuring the rotating speed of an auxiliary driving motor 12 is arranged in the gearbox 225. By auxiliary driving of a speed sensor B25 can measure the rotating speed of the auxiliary driving motor 12, and provides a basis for the coupling of the auxiliary driving motor under the heavy-load working condition.
As shown in fig. 3, in order to realize the automatic gear shifting of the gearbox 2, the automatic gear shifting device further comprises a main controller, a gear selector and an accelerator pedal displacement sensor, wherein the gear selector sends a control signal to the main controller, and the main drive rotating speed sensor B13. Output speed sensor B34. Auxiliary driving speed sensor B25, signals of the accelerator pedal displacement sensor and the main controller are simultaneously transmitted; the main controller respectively controls the main driving clutch C of the gearbox 2125 and auxiliary drive clutch C 226 and a main drive motor 11 and an auxiliary drive motor 12. The driver gives out a vehicle running command through the gear selector, and the main controller sends out a vehicle running command through the accelerator pedal displacement sensor and the output rotating speed sensor B34, the main controller selects a corresponding control strategy according to the current working condition, and respectively controls the main transmission clutch of the gearboxC 125 and auxiliary drive clutch C2The disengagement or engagement of 26 and the control of the rotational speed of the auxiliary drive motor 12 effects a switch between control strategies, enabling automatic control of the gearbox 2.
A control method of a double-motor input electric loader walking power system comprises the following steps:
step one, the gear of the gearbox 2 is in a neutral position in an initial state, and the driving transmission clutch C is used125 and auxiliary drive clutch C 226, simultaneously separating;
step two, the gear selector sends out a control command to start the main driving motor 11, and the main controller is used for sensing the displacement of the accelerator pedal and outputting a rotating speed sensor B34, judging the current working condition by the signal; entering a third step under a light load working condition; when the working condition is heavy, entering the step four;
step three, a light load control strategy: main drive clutch C 125 engage while assisting drive clutch C 226 are separated, and the power output by the main drive motor 11 passes through the main drive input shaft 21 and the main drive clutch C in sequence 125. The main drive shaft gear 211 and the output shaft gear 241 are transmitted to the output shaft 24;
step four, overloading a control strategy: main drive clutch C 125 are engaged first, and the power output by the main drive motor 11 passes through the main drive input shaft 21 and the main drive clutch C in sequence 125 and the main drive shaft gear 211 to the output shaft gear 241; the main controller adjusts the rotation speed of the auxiliary driving motor 12 to match the rotation speed of the output shaft 24, and then the auxiliary driving clutch C 226, the power output by the auxiliary driving motor 12 is converged to the output shaft gear 241 through the auxiliary driving input shaft 22, the auxiliary driving shaft gear 221, the intermediate shaft first gear 231, the intermediate shaft 23 and the intermediate shaft second gear 232 in sequence, and the converged power is output by the output shaft 24;
step five, automatic gear shifting: the main controller outputs a rotation speed sensor B34, judging the change of the working condition by signals of an accelerator pedal displacement sensor; switching a control strategy in real time according to the current working condition;
step six, stopping the machine: the gear of the transmission 2 is restored to the neutral state.
The control method of the utility model realizes the automatic gear shifting of the gearbox 2 according to the change of the working condition in the process from the vehicle starting to the vehicle running.
As shown in fig. 4, in order to accurately determine the current working condition, the main controller outputs the rotation speed sensor B in the second step and the fifth step34, the method for judging the working condition by signals of the accelerator pedal displacement sensor comprises the following steps:
firstly, setting main controller judgment parameters: dividing a region I into a heavy load region, a region II into a transition region and a region III into a light load region by combining the displacement parameter of the accelerator pedal displacement sensor and the output rotating speed parameter of the output shaft;
then, the main controller collects data: sensor B for measuring displacement parameters and output rotating speed according to displacement sensor of accelerator pedal34 measured output speed value of the output shaft 24;
finally, the main controller judges the working condition: sensor B for measuring displacement parameters and output rotating speed of accelerator pedal displacement sensor34 when the output rotating speed value of the output shaft 24 measured by the main controller is in the range of the area I set by the main controller, the main controller judges the heavy-load working condition and drives the clutch C 125 and auxiliary drive clutch C 226 are engaged simultaneously; sensor B for measuring displacement parameters and output rotating speed of accelerator pedal displacement sensor34 when the output rotating speed value of the output shaft 24 measured by the main controller is in the area II range set by the main controller, the main controller judges the transition working condition and drives the clutch C 125 and auxiliary drive clutch C 226, keeping the original state; sensor B for measuring displacement parameters and output rotating speed of accelerator pedal displacement sensor34 when the output rotating speed value of the output shaft 24 measured by the main controller is in the area III range set by the main controller, the main controller judges that the light load working condition exists, and the clutch C is mainly driven125 engage while assisting drive clutch C 226, separating.
In order to realize the power coupling of the auxiliary driving motor, the method for matching the rotation speed of the auxiliary driving motor 12 with the rotation speed of the output shaft 24 in the fourth step is as follows:
acquisition masterDrive ratio i of the electric motor 11 to the output shaft 24M1=Z5/Z4；
Obtaining a gear ratio i of the auxiliary drive motor 12 to the output shaft 24M2=(Z2/Z1)×( Z5/Z3)；
In the formula, Z1To assist the number of teeth of the drive shaft gear 221, Z2Number of teeth of the first gear 231 of the intermediate shaft, Z3Number of teeth of the intermediate shaft second gear 232, Z4Number of teeth, Z, of main drive shaft gear 2115The number of teeth of the output shaft gear 241;
main driving speed sensor B13 measuring the rotational speed of the main drive motor 11
；
According to the principle of coupling the main drive motor 11 with the auxiliary drive motor 12,
calculation of the rotational speed of the auxiliary drive motor 12
；
The main controller adjusts the rotation speed measured value of the auxiliary driving motor 12 to the rotation speed calculated value
Auxiliary drive speed sensor B25 actually measuring the actual rotation speed value of the auxiliary driving motor 12, and when the actual rotation speed value is equal to the calculated rotation speed value, the auxiliary driving clutch C 226 are engaged.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A walking power system of an electric loader with double-motor input comprises a driving motor (1) and a gearbox (2), wherein the driving motor (1) is connected with an input shaft of the gearbox (2); the method is characterized in that: the driving motor (1) comprises a main driving motor (11) and an auxiliary driving motor (12), the gearbox (2) comprises a main driving input shaft (21), an auxiliary driving input shaft (22), an intermediate shaft (23) and an output shaft (24), the main driving motor (11) is connected with the main driving input shaft (21), and the auxiliary driving motor (12) is connected with the auxiliary driving input shaft (22); the main drive input shaft (21) is connected with the output shaft (24) through a gear transmission pair, the intermediate shaft (23) is located between the auxiliary drive input shaft (22) and the output shaft (24), and the intermediate shaft (23) is connected with the auxiliary drive input shaft (22) and the output shaft (24) through the gear transmission pair respectively.
2. The dual-motor input electric loader travel power system of claim 1, wherein: a main drive shaft gear (211) is arranged on the main drive input shaft (21), an output shaft gear (241) is fixedly installed on the output shaft (24), an auxiliary drive shaft gear (221) is arranged on the auxiliary drive input shaft (22), and an intermediate shaft first gear (231) and an intermediate shaft second gear (232) are respectively arranged on the intermediate shaft (23); the above-mentionedThe output shaft gear (241) is meshed with the main driving shaft gear (211) and an intermediate shaft second gear (232) simultaneously, the intermediate shaft first gear (231) and the intermediate shaft second gear (232) are coaxial, and the intermediate shaft first gear (231) is meshed with the auxiliary driving shaft gear (221); a main transmission clutch C is arranged between the main drive shaft gear (211) and the main drive input shaft (21)1（25）。
3. The dual-motor input electric loader travel power system of claim 2, wherein: the auxiliary driving shaft gear (221) is fixedly connected with the auxiliary driving input shaft (22); the intermediate shaft second gear (232) is fixedly arranged on the intermediate shaft (23), and an auxiliary transmission clutch C is arranged between the intermediate shaft first gear (231) and the intermediate shaft (23)2（26）。
4. The dual-motor input electric loader travel power system of claim 2, wherein: the first intermediate shaft gear (231) and the second intermediate shaft gear (232) are respectively fixedly connected with the intermediate shaft (23), and an auxiliary transmission clutch C is arranged between the auxiliary driving shaft gear (221) and the auxiliary driving input shaft (22)2（26）。
5. The dual-motor input electric loader walking power system of any one of claims 1-4, wherein: a main driving rotating speed sensor B for measuring the rotating speed of the main driving motor (11) is arranged in the gearbox (2)1(3) And an output rotational speed sensor B for measuring the rotational speed of the output shaft 243（4）。
6. The dual-motor input electric loader travel power system of claim 5, wherein: an auxiliary driving rotating speed sensor B for measuring the rotating speed of the auxiliary driving motor (12) is arranged in the gearbox (2)2（5）。
7. The dual-motor input electric loader travel power system of claim 6, wherein: the gear selector sends a control signal to the main controller, and the main driving rotation speed sensor B1(3) Output speed sensor B3(4) Auxiliary driving speed sensor B2(5) The signals of the accelerator pedal displacement sensor and the signals of the accelerator pedal displacement sensor are simultaneously transmitted to the main controller; the main controller respectively controls the main drive clutches C of the gear box (2)1(25) And auxiliary drive clutch C2(26) And a main drive motor (11) and an auxiliary drive motor (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121764054.7U CN215705628U (en) | 2021-07-30 | 2021-07-30 | Double-motor input electric loader walking power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121764054.7U CN215705628U (en) | 2021-07-30 | 2021-07-30 | Double-motor input electric loader walking power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215705628U true CN215705628U (en) | 2022-02-01 |
Family
ID=79991170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121764054.7U Active CN215705628U (en) | 2021-07-30 | 2021-07-30 | Double-motor input electric loader walking power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215705628U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113370773A (en) * | 2021-07-30 | 2021-09-10 | 德州德工机械有限公司 | Double-motor input electric loader walking power system and control method thereof |
-
2021
- 2021-07-30 CN CN202121764054.7U patent/CN215705628U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113370773A (en) * | 2021-07-30 | 2021-09-10 | 德州德工机械有限公司 | Double-motor input electric loader walking power system and control method thereof |
| CN113370773B (en) * | 2021-07-30 | 2025-01-03 | 山推(德州)工程机械有限公司 | Travel power system of electric loader with dual motor input and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107097632B (en) | Power take-off structure of automatic-gear hybrid power sanitation vehicle and control method thereof | |
| CN104507775B (en) | Control device of electric motor | |
| CN1982135B (en) | Engine stop control apparatus for hybrid vehicle | |
| US7317259B2 (en) | Power output apparatus and motor vehicle equipped with power output apparatus | |
| CN203283020U (en) | Hybrid power speed changer and corresponding automobile | |
| CN107839468B (en) | hybrid power system with high charge-discharge efficiency and control method thereof | |
| CN105599753B (en) | The control method and system of motor vehicle driven by mixed power | |
| CN110978988B (en) | Hybrid power DCT tractor and automatic gear shifting control method thereof | |
| JP2011093474A (en) | Controller for hybrid type vehicle with working device | |
| CN104773069A (en) | Vehicle power transmission device | |
| CN111016881B (en) | Hybrid power assembly gear control system and vehicle | |
| CN102092385A (en) | Automatic gear shifting strategy for electric vehicles | |
| CN114312282B (en) | Hybrid power driving system and control method | |
| CN104554241A (en) | Multi-mode relatively independent oil-electric hybrid power system and control method thereof | |
| CN102259647A (en) | Hybrid power whole vehicle control and automated mechanical transmission (AMT) integrated control system | |
| CN105246752A (en) | Shift control device for hybrid vehicle drive device | |
| CN102910065A (en) | Hybrid middle bus power system and corresponding control method | |
| CN207328118U (en) | The bi-motor Mechanical ＆ Electrical Combination System of automobile-used extended-range | |
| CN102358282B (en) | Method for controlling integrated transmission system of dual-motor pure electric automobile | |
| CN215705628U (en) | Double-motor input electric loader walking power system | |
| CN102009649A (en) | Limited torque clutch control method for power coupling device of hybrid vehicle | |
| CN102514478B (en) | Hybrid power driving system of vehicle and oil saving control method | |
| CN112031062B (en) | Walking driving system of electric loader and control method | |
| CN103386967A (en) | Control method for automatic gearbox and power system | |
| CN113370773B (en) | Travel power system of electric loader with dual motor input and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 253000 East head of Baide Road, Dezhou Economic Development Zone, Shandong Province Patentee after: Shantui (Dezhou) Construction Machinery Co.,Ltd. Address before: 253000 East head of Baide Road, Dezhou Economic Development Zone, Shandong Province Patentee before: DEZHOU DEGONG MACHINERY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |