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Test method of driving motor of hybrid vehicle

A technology for hybrid electric vehicles and drive motors, which is applied in the direction of motor generator testing, etc., can solve the problems that do not involve monitoring the program logic of the motor controller, and achieve the effect of comprehensive testing and verification of reliability.

Active Publication Date: 2012-10-24
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, such as the technical solution disclosed in the patent (Patent No.: 200710145923.6) of "Hybrid Electric Vehicle Drive Motor Test Bench and Test Method", the hybrid electric vehicle drive motor test system is only used to simulate the motor operation under actual working conditions Status, from a macro perspective to monitor whether the running status of the motor meets the policy requirements, but does not involve monitoring whether the operation of the motor controller conforms to the program logic

Method used

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  • Test method of driving motor of hybrid vehicle
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  • Test method of driving motor of hybrid vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 As shown, the motor under test is coaxially connected with the dynamometer, and the motor under test and the dynamometer are powered by a high-voltage power supply. The controller is electrically connected with the motor under test. The controller is composed of the HCU board (vehicle controller) and the MCU board (motor controller). The communication between the HCU board and the MCU board is realized through the internal CAN bus. The controller realizes the communication. The three-phase current of the motor under test is collected and displayed by an oscilloscope.

[0022] Such as figure 2 As shown, supply power to the controller, download the underlying code and application layer code to the MCU board, the controller starts and completes the initialization of its internal chip, and enters the waiting state; powers up the high-voltage system, and the dynamometer and the motor under test enter the waiting state ;According to the requirements of th...

Embodiment 2

[0024] Such as image 3 As shown, the controller is composed of an HCU board and an MCU board. The controller is connected with an I / O board. The HCU board and the MCU board communicate through the I / O board. The PC communicates with the controller through the CAN bus. In the second implementation, no dynamometer or high-voltage power supply is needed.

[0025] Such as Figure 4 As shown, supply power to the test platform, start the PC, download the bottom layer and application layer codes to the MCU board, the HCU board and the MCU board enter the waiting state; the PC sends control commands to the HCU board of the controller through the CAN bus; monitor the I / O board signal status, verify it.

[0026] Such as Figure 5 As shown, supply power to the test platform, start the PC, download the bottom layer and application layer codes to the MCU board, the HCU board and the MCU board enter the waiting state; add an electrical signal to the corresponding test point on the MCU ...

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Abstract

The invention relates to a test method of a driving motor of a hybrid vehicle, which can test the operation of a motor controller, so the test is more complete and reliable. The invention has the technical scheme that a tested motor is coaxially connected with a dynamometer machine, and a controller is electrically connected with the tested motor. The dynamometer machine is in a corresponding working model according to the test requirements. The invention is characterized in that a PC machine sends control commands to the controller through a CAN bus according to the test requirements, the controller correspondingly controls the tested motor according to the received control commands, and the PC machine monitors and verifies control signals output by the controller.

Description

technical field [0001] The invention relates to a testing method for a drive motor of a hybrid vehicle. Background technique [0002] The driving motor in the hybrid electric vehicle system plays a very important role in the whole hybrid powertrain, and its basic performance and control effect directly affect the performance index of the whole vehicle. The hybrid drive motor test system is of great significance to the development and application of the motor and its controller. The test system can not only help the development and application personnel analyze some fault phenomena during the debugging and application process of the product, but also quickly find the problem of the product And solve it, you can also quickly evaluate the performance of the product, and improve the speed of product development and application efficiency. [0003] In the prior art, such as the technical solution disclosed in the patent (Patent No.: 200710145923.6) of "Hybrid Electric Vehicle Dr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/34
Inventor 王瑛宋波陈立冲
Owner CHERY AUTOMOBILE CO LTD