首页|某纯电动汽车驱动电机旋转变压器故障分析与优化设计

某纯电动汽车驱动电机旋转变压器故障分析与优化设计

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新能源汽车市场已经成为中国汽车市场的重要组成部分,解决好新能源汽车安全问题,成为决定行业实现高质量发展的重要基础和前提.在纯电动汽车驱动电机系统中,旋转变压器用于检测驱动电机转子位置和速度,经常会受到电磁干扰、上电时序、接地回路和线束走线等影响,尤其是高压上电过程中,车辆的控制系统误判为电机故障,从而触发安全保护机制,导致车辆无法行驶.本文采用更改电机控制器主控板电源模块电阻的方法,对旋转变压器解码电路进行处理,更改后开关损耗降低和上电建立时间增加.经验证,此优化方案可解决上电过程中误报旋转变压器故障.
Fault Analysis and Optimization of Rotary Transformer of Drive Motor for a Pure Electric Vehicle
The new energy vehicle market has become an important part of China's automobile market,and solving the safety problems of new energy vehicles has become an important basis and premise for determining the high-quality development of the auto industry.In the pure electric vehicle drive motor system,the rotary transformer is used to detect the rotor position and speed of the drive motor,which is often affected by electromagnetic interference,power-on timing,grounding loop,and wiring harness direction,especially in the process of high-voltage power-on,the vehicle's control system misjudges the motor fault,thus triggering the safety protection mechanism,causing the vehicle to be unable to drive.This paper uses the method of changing the resistance of the power module of the main control board of the motor controller to deal with the decoding circuit of the rotary transformer.After the change,the switching loss is reduced and the power-on establishment time is increased.It is proved that the optimization scheme can solve the false alarm of the rotary transformer during the power-on process.

rotary transformerswitching frequencypower-on establishment timepower module

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济宁职业技术学院,山东济宁 272200

旋转变压器 开关频率 上电建立时间 电源模块

2024

汽车零部件
中国科学技术信息研究所 中国汽车零部件工业公司

汽车零部件

影响因子:0.121
ISSN:1674-1986
年,卷(期):2024.(4)
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