CN104931275A - Bench test device based on dual-motor drive system and function realization method thereof - Google Patents

Bench test device based on dual-motor drive system and function realization method thereof Download PDF

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Publication number
CN104931275A
CN104931275A CN201510328454.6A CN201510328454A CN104931275A CN 104931275 A CN104931275 A CN 104931275A CN 201510328454 A CN201510328454 A CN 201510328454A CN 104931275 A CN104931275 A CN 104931275A
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motor
drive
bench test
dual
isg
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CN201510328454.6A
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CN104931275B (en
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林歆悠
林海波
翟柳清
冯其高
张少博
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Fuzhou University
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Fuzhou University
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Abstract

The invention relates to a bench test device based on a dual-motor drive system and a function realization method thereof. The system comprises a drive motor, an ISG motor, a two speed planetary gear transmission, an acceleration box, a flywheel group, a power dynamometer, power batteries, a first rotation speed torque sensor and a second rotation speed torque sensor. The ISG motor is directly integrated on an output shaft of the drive motor. The output shaft of the ISG motor is connected with an input shaft of the two speed planetary gear transmission through the first rotation speed torque sensor. An output shaft of the two speed planetary gear transmission is connected with an input shaft of the flywheel group sequentially through the second rotation speed torque sensor and the acceleration box. An output shaft of the flywheel group is connected with an input shaft of the power dynamometer. The drive motor is connected with all power batteries. According to the invention, a bench test can be simultaneously carried out on a pure electric vehicle and a hybrid vehicle.

Description

A kind of bench test device based on dual-motor drive system and function realizing method thereof
Technical field
the present invention relates to automobile engine bench test technology, particularly a kind of bench test device based on dual-motor drive system and function realizing method thereof.
Background technology
Automobile bench simulation test is an important ring of automotive development test.Bench simulation test reduces the gap of pure software analog simulation and actual conditions, and substantially reduces the cycle of real train test.Current stand mainly adopts modular design, mainly comprises energy supply module, driver module, inertia simulation module, load simulation module, data acquisition module and stand main control module.By the change to submodule, enable the test that stand realizes for different types of structure automobile.
Summary of the invention
In view of this, the object of the invention is to propose a kind of bench test device based on dual-motor drive system and function realizing method thereof, the bench test of pure electric automobile and hybrid vehicle can be realized simultaneously.
Device of the present invention adopts following scheme to realize: a kind of bench test device based on dual-motor drive system, specifically comprises drive motor, ISG motor, two grades of planetary transmissions, raising speed case, flywheel group, electric dynamometer, electrokinetic cell, the first torque and speed sensors and second torque and speed sensorses; Described ISG motor is directly integrated on the output shaft of described drive motor, the output shaft of described ISG motor is connected to the input shaft of described two grades of planetary transmissions through the first described torque and speed sensors, the output shaft of described two grades of planetary transmissions is connected to the input shaft of described flywheel group successively through described second torque and speed sensors, raising speed case, the output shaft of described flywheel group is connected to the input shaft of described electric dynamometer; Described drive motor is connected with described electrokinetic cell.
Further, described drive motor is connected with simulated engine case.
Further, the described bench test device based on dual-motor drive system also comprises and the drive motor controller that described drive motor is connected, the ISG electric machine controller be connected with described ISG motor, the gearbox controller, CAN and the upper strata master station that are connected with described two grades of planetary transmissions and corresponding testing system software.
Invention of the present invention adopts following scheme to realize: a kind of function realizing method as a kind of bench test device based on dual-motor drive system above as described in device, be specially: when described simulated engine case accesses the described bench test device based on dual-motor drive system, this device carries out hybrid power bench test; When described simulated engine case and the described bench test device based on dual-motor drive system disconnect and described ISG motor dallies, this device carries out the pure electronic bench test of single motor; When described simulated engine case and the described bench test device based on dual-motor drive system disconnect and described ISG electrical power time, this device carries out the pure electronic bench test of bi-motor.
Further, the described bench test device based on dual-motor drive system also comprises and the drive motor controller that described drive motor is connected, the ISG electric machine controller be connected with described ISG motor, the gearbox controller, CAN and the upper strata master station that are connected with described two grades of planetary transmissions and corresponding testing system software.
Preferably, when device of the present invention carries out pure electric automobile test, be the pure electric automobile test-bed of single motor when ISG motor dallies.Write by master station software controlling strategies, realize the test realizing single motor whole pure electric vehicle performance under setup control strategy.Simultaneously owing to have employed two grades of planetary transmissions, stand can be shifted gears control strategy research accordingly.After ISG electrical power, the drive system of stand becomes dual-motor drive system, ISG motor becomes the stand-by motor of pure electric automobile test-bed, and the now cooperation of bi-motor can improve the efficiency of main drive motor further, and then car load efficiency is improved.Bench test now, can test accordingly to corresponding Double Motor Control strategy.
Especially, when device of the present invention carries out hybrid vehicle test, simulated engine case simulating engine real time execution operating mode, drive motor is controlled by upper strata master station, adopt the output simulation real engine of drive motor to export, now ISG motor is equivalent to integrated with on engine output shaft.Now hardware configuration is equivalent to the hybrid power system that ISG motor combines with engine.
Compared with prior art, the present invention adopts two grades of advanced planetary transmissions, overcome the restriction of speed change for Bench Test System test performance of the single gear of transmission, the two speed transmission be made up of the independent planetary gears of two rows, when current rows of planetary gear mechanism gear ring is braked by gearbox controller, rear rows of planetary gear mechanism is in free idle running, ratio of gear is now determined by front-seat planetary gears, when rear rows of planetary gear mechanism gear ring is braked by gearbox controller, front-seat planetary gears is in free idle running, ratio of gear is now determined by rear rows of planetary gear mechanism.Simultaneously the present invention breakthrough by integrated for ISG motor with on drive motor output shaft, the corresponding test stand performance test of the pure electronic and hybrid vehicle of pure electronic, the bi-motor of single motor can be realized.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention test unit.
Fig. 2 is the inventive method schematic diagram.
[primary clustering symbol description]
in figure:1 is drive motor, and 2 is ISG motor, and 3 is the first torque and speed sensors, and 4 is two grades of planetary transmissions, and 5 is the second torque and speed sensors, and 6 is raising speed case, and 7 is flywheel group, and 8 is electric dynamometer.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
As shown in Figure 1, present embodiments provide a kind of bench test device based on dual-motor drive system, specifically comprise drive motor, ISG motor, two grades of planetary transmissions, raising speed case, flywheel group, electric dynamometer, electrokinetic cell, the first torque and speed sensors and second torque and speed sensorses; Described ISG motor is directly integrated on the output shaft of described drive motor, the output shaft of described ISG motor is connected to the input shaft of described two grades of planetary transmissions through the first described torque and speed sensors, the output shaft of described two grades of planetary transmissions is connected to the input shaft of described flywheel group successively through described second torque and speed sensors, raising speed case, the output shaft of described flywheel group is connected to the input shaft of described electric dynamometer; Described drive motor is connected with described electrokinetic cell.
In the present embodiment, described drive motor is connected with simulated engine case.
In the present embodiment, the described bench test device based on dual-motor drive system also comprises and the drive motor controller that described drive motor is connected, the ISG electric machine controller be connected with described ISG motor, the gearbox controller, CAN and the upper strata master station that are connected with described two grades of planetary transmissions and corresponding testing system software.
As shown in Figure 2, the present embodiment additionally provides a kind of function realizing method as a kind of bench test device based on dual-motor drive system above as described in device, be specially: when described simulated engine case accesses the described bench test device based on dual-motor drive system, this device carries out hybrid power bench test; When described simulated engine case and the described bench test device based on dual-motor drive system disconnect and described ISG motor dallies, this device carries out the pure electronic bench test of single motor; When described simulated engine case and the described bench test device based on dual-motor drive system disconnect and described ISG electrical power time, this device carries out the pure electronic bench test of bi-motor.
Preferably, in the present embodiment, when simulated engine case accesses bench test device of the present invention, now by the control of master station, the output of drive motor is equivalent to engine and exports, and test drive person can manipulate the gas pedal on simulated engine and coordinate brake pedal to carry out corresponding drive simulating control.Platform system is now equivalent to the hybrid power system based on ISG motor, and ISG motor is equivalent to integrated with on engine output shaft.When not accessing simulated engine case, bench test is pure electronic test.When carrying out pure electrokinetic tests, whether dallying according to ISG motor and can be divided into single motor pure electric drive system and bi-motor pure electric drive system.It is the pure electric automobile test-bed of single motor when ISG motor dallies.Write by master station software controlling strategies, realize the test realizing single motor whole pure electric vehicle performance under setup control strategy.Simultaneously owing to have employed two grades of planetary transmissions, stand can be shifted gears control strategy research accordingly.After ISG electrical power, the drive system of stand becomes dual-motor drive system, ISG motor becomes the stand-by motor of pure electric automobile test-bed, and the now cooperation of bi-motor can improve the efficiency of main drive motor further, and then car load efficiency is improved.Bench test now, can test accordingly to corresponding Double Motor Control strategy.
In the present embodiment, when carrying out bench test, control system, by controlling drive motor controller and ISG electric machine controller, changes motor energization current and changes Torque and speed.Two grades of planetary transmissions, according to the Shifting of default, are braked respectively by the gear ring of detent to front and rear row planetary gears.When current rows of planetary gear mechanism gear ring is braked by gearbox controller, rear rows of planetary gear mechanism is in free idle running, and ratio of gear is now determined by front-seat planetary gears; When rear rows of planetary gear mechanism gear ring is braked by gearbox controller, front-seat planetary gears is in free idle running, and ratio of gear is now determined by rear rows of planetary gear mechanism.Torque and speed sensors, while collection rotational speed and torque, can be good at verifying transmission ratio.After variator exports, adopt raising speed case to coordinate flywheel group for the simulation of vehicle inertia, simulated the running resistance of car load operation afterwards by electric dynamometer.
In sum, drive system of the present invention adopts bi-motor (main drive motor, ISG motor), being integrated on the output shaft of main drive motor by ISG motor of novelty.The automatic transmission that the present invention simultaneously adopts is two grades of planetary transmissions, compared to the current motor electrodeless variable-speed adopted, can improve dynamic property and the economy of automobile further, more adapt to the development of following electric automobile.A kind of bench test device based on dual-motor drive system of the present invention can realize the bench test of pure electric automobile and hybrid vehicle simultaneously in addition.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.

Claims (5)

1. based on a bench test device for dual-motor drive system, it is characterized in that: comprise drive motor, ISG motor, two grades of planetary transmissions, raising speed case, flywheel group, electric dynamometer, electrokinetic cell, the first torque and speed sensors and second torque and speed sensorses; Described ISG motor is directly integrated on the output shaft of described drive motor, the output shaft of described ISG motor is connected to the input shaft of described two grades of planetary transmissions through the first described torque and speed sensors, the output shaft of described two grades of planetary transmissions is connected to the input shaft of described flywheel group successively through described second torque and speed sensors, raising speed case, the output shaft of described flywheel group is connected to the input shaft of described electric dynamometer; Described drive motor is connected with described electrokinetic cell.
2. a kind of bench test device based on dual-motor drive system according to claim 1, is characterized in that: described drive motor is connected with simulated engine case.
3. a kind of bench test device based on dual-motor drive system according to claim 1, is characterized in that: the described bench test device based on dual-motor drive system also comprises and the drive motor controller that described drive motor is connected, the ISG electric machine controller be connected with described ISG motor, the gearbox controller, CAN and the upper strata master station that are connected with described two grades of planetary transmissions and corresponding testing system software.
4. the function realizing method of an a kind of bench test device based on dual-motor drive system as claimed in claim 2, it is characterized in that: when described simulated engine case accesses the described bench test device based on dual-motor drive system, this device carries out hybrid power bench test; When described simulated engine case and the described bench test device based on dual-motor drive system disconnect and described ISG motor dallies, this device carries out the pure electronic bench test of single motor; When described simulated engine case and the described bench test device based on dual-motor drive system disconnect and described ISG electrical power time, this device carries out the pure electronic bench test of bi-motor.
5. the function realizing method of a kind of bench test device based on dual-motor drive system according to claim 4, is characterized in that: the described bench test device based on dual-motor drive system also comprises and the drive motor controller that described drive motor is connected, the ISG electric machine controller be connected with described ISG motor, the gearbox controller, CAN and the upper strata master station that are connected with described two grades of planetary transmissions and corresponding testing system software.
CN201510328454.6A 2015-06-15 2015-06-15 A kind of function realizing method of the bench test device based on dual-motor drive system Expired - Fee Related CN104931275B (en)

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CN105738103A (en) * 2016-02-26 2016-07-06 重庆大学 Development test platform for drum type coal mining machine advanced cutting transmission system
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CN107167317A (en) * 2017-06-08 2017-09-15 上海涟屹轴承科技有限公司 Sliding bearing experimental platform and method

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CN106525450A (en) * 2016-11-14 2017-03-22 山东工拓机电设备有限公司 Testing method and apparatus for power system matching of double-shaft-drive electric vehicle
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CN107167317A (en) * 2017-06-08 2017-09-15 上海涟屹轴承科技有限公司 Sliding bearing experimental platform and method

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