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Vehicle motor controller efficiency measuring method, device and system

A technology of a motor controller and a measurement method, which is applied to measurement devices, estimation/correction of motor parameters, and electric power measurement through current/voltage, etc., can solve problems such as electromagnetic interference motor controller signal measurement and efficiency calculation errors.

Inactive Publication Date: 2018-10-02
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

At present, the efficiency test method of the motor controller usually adopts the above-mentioned traditional power measurement method, but in the actual test process, because the efficiency of the motor controller is generally very high, and the motor controller generally uses a high-frequency IGBT module or MOSFET module High-frequency switching control, the resulting high-frequency harmonics and electromagnetic interference will have a great error impact on the signal measurement and efficiency calculation of the motor controller, and from time to time the efficiency value of the motor controller will exceed 100 %Case

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  • Vehicle motor controller efficiency measuring method, device and system
  • Vehicle motor controller efficiency measuring method, device and system
  • Vehicle motor controller efficiency measuring method, device and system

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Embodiment Construction

[0061] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0062] An embodiment of the present invention provides a method for measuring the efficiency of a vehicle motor controller, which will be described below with reference to the accompanying drawings.

[0063] In an embodiment of the present invention, it relates to a method for measuring the efficiency of a vehicle motor controller, referring to figure 1 As shown, it specifically includes the following steps:

[0064] S11. Obtain t...

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Abstract

The invention relates to a vehicle motor controller efficiency measuring method comprising the steps that the input power of the measured motor controller is acquired according to the operation stateof the motor under the preset condition; the energy loss power of the measured motor controller is acquired; the output power of the measured motor controller is acquired according to the input powerand the energy loss power; and the efficiency of the measured motor controller is acquired according to the output power and the input power. According to the method, the actual operation environmentand condition of the vehicle motor system are considered, and the motor controller efficiency value obtained by testing has high accuracy and low fluctuation in comparison with the conventional measuring method; and the test equipment has simple structure is comparison with the heat measuring method so that the test time can be effectively reduced and the test cost can be reduced.

Description

technical field [0001] The present invention relates to the relevant technical field of testing the efficiency of a drive motor controller for a vehicle, in particular to a method, device and system for measuring the efficiency of a motor controller for a vehicle. Background technique [0002] The efficiency test of the motor controller is an important test item of the motor controller test. [0003] The methods for testing the efficiency of motor controllers include power measurement and calorimetry. Domestic and foreign research mainly focuses on the research of calorimetry. However, since the calorimetry can only test the efficiency of the motor controller in a steady state, and the test requires The time is long, so this method is not suitable for measuring the instantaneous efficiency of the motor controller. For the sake of convenience, the electricity measurement method is generally used as the method of testing the efficiency of the motor controller at present. The...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R21/06G01R31/00
CPCG01R21/06G01R31/00G01R31/42H02P23/14
Inventor 宋强王伟李易庭王明生
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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