Driving motor for electric vehicle and controller calibration system and calibration method

Abstract

The invention discloses a driving motor for an electric vehicle and a controller calibration system and calibration method. An alternating-current dynamometer is coaxially connected with a calibrated driving motor; the driving motor is connected with a calibrated motor controller by a power line; a motor controller is connected with a battery simulator by a direct-current bus; a water-cooled circulation system is connected with the driving motor and the motor controller by a cooling pipe; a power analyzer is connected with the motor controller; and a rack monitoring system is connected with the power analyzer, the water-cooled circulation system, a dynamometer control cabinet and the battery simulator. Therefore, the testing flow is optimized, the calibration cycle is shortened, and the comprehensive utilization rate of the calibration test rack is improved. The driving motor for an electric vehicle and the controller calibration system and calibration method can applied in technical and research and development fields of electric vehicle drive motor and controller manufacturing and matching optimization widely with great promotion values.

Description

technical field [0001] The invention relates to a calibration system and calibration method for a driving motor and a controller for an electric vehicle. Background technique [0002] Electric vehicles have become an inevitable trend of future automobile development due to energy saving and environmental protection. Different from traditional fuel vehicles, the power system of electric vehicles is mainly a motor drive system powered by power batteries. The motor drive system mainly includes the drive motor and controller (including the motor inverter part). The performance of the motor drive system directly affects the power, economy and comfort of the vehicle. Therefore, the performance test and calibration of the drive motor and controller It occupies an important position in the development of the entire electric vehicle system. [0003] Motor efficiency MAP diagram (also called contour map, cloud map) is a data curve generated during motor testing, mainly reflecting th...

AI Technical Summary

Problems solved by technology

At present, there are many test instruments and equipment required for the matching test or calibration process of the electric vehicle drive motor and the controller. The test data is stored in different computers or software platforms, and is not completed under the same software and hardware system platform. Due to the influence of data transmission rate, transmission delay, electromagnetic interference and other factors, it is not only difficult to guarantee the measurement error caused by the poor time consistency of test data, but also the test data of different devices need to be saved separately, and then exported for manual processing, including unified data format, Calculation, drawing, etc., the processing process is cumbersome and takes a long time

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