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Electric automobile power system test platform and energy distribution test method thereof

A technology of power system and electric vehicle, which is applied in the direction of engine test, measurement device, measurement of electrical variables, etc., can solve the problems of complex structure, high cost and low energy utilization rate of the test platform.

Active Publication Date: 2013-09-11
SAIC MOTOR
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This kind of system test platform has complex structure, low energy utilization rate, and high cost, especially because a considerable proportion of energy needs to be fed back to the grid, which has high requirements for the quality of the inverter power supply (such as low harmonics)

Method used

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  • Electric automobile power system test platform and energy distribution test method thereof
  • Electric automobile power system test platform and energy distribution test method thereof

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Embodiment Construction

[0021] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] Such as figure 1 As shown, the electric vehicle power system test platform includes a console 1, a motor under test 3, a dynamometer 5, a vehicle controller 2, a motor controller under test 4, a dynamometer controller 6, a power battery 7 and an auxiliary Energy unit 8. The motor under test 3 is flexibly connected to the dynamometer 5 , and a sensor for detecting torque is provided at the connection. The sensor is connected to the console 1 , and the sensor can feed back the detected torque value to the console 1 . The tested motor controller 4 is connected with the tested motor 3 , and the tested motor controller 4 is used to control the torque output of the tested motor 3 . The dynamometer controller 6 is connected to the dynamometer 5 , and the dynamometer controller 6 is used to control the load torque of the dynamometer 5 . The...

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Abstract

The invention discloses an electric automobile power system test platform which comprises a console, a finished automobile controller, a motor to be tested, a controller of the motor to be tested, a dynamometer, a dynamometer controller, a power battery and an auxiliary energy unit. An energy closed-loop system is formed by an energy distribution module, the controller of the motor to be tested, the motor to be tested, the dynamometer controller and the dynamometer. Electric energy generated by the dynamometer does not need to be fed back to an electric grid. An inverter power source is not required between the whole system test platform and the alternating current electric grid. A direct current power source is only used for conducting energy compensation on system loss of the test platform. Therefore, a system energy use ratio can be improved, the complexity of the power system test platform is simplified, the difficulty and cost of electric automobile power system research and development can be reduced, and the influence on the power grid by a test system can be decreased.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to an electric vehicle power system test platform and an energy distribution test method for the test platform. Background technique [0002] While vehicles bring convenience to people, they consume a large amount of oil resources and cause serious pollution to the external environment in which human beings live. At present, electric vehicles such as fuel cell electric vehicles, gasoline-electric hybrid vehicles, solar electric vehicles, and pure electric vehicles have already Become the research and development focus of major domestic companies. The electric vehicle power system is mainly composed of energy sources (such as power batteries, fuel cells, energy storage capacitors, etc.), power electronic devices, drive motors, etc. System performance testing and assessment will become the focus of the next research. [0003] In order to test the components and systems of the power ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/02G01R31/00
Inventor 曹建荣程伟欧阳启
Owner SAIC MOTOR
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