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发动机ECU输入信号的电磁兼容设计
资料介绍
针对发动机ECU输入信号的电磁兼容问题,深入探讨了汽车上的几种电磁干扰发生机理。通过采用滤波、旁路、去耦等抗干扰设计的方法,对发动机氧传感器、磁电式转速传感器和爆震传感器输入ECU内部的电信号进行了抗干扰电路设计,该ECU输入信号抗干扰设计达到了国家标准的相关要求,同时对发动机ECU进行了实车装车运行测试,运行稳定表明该设计的ECU输入信号抗干扰电路满足电磁兼容性能要求。
Aiming at the electromagnetic compatibility problem of the input signal of the engine ECU, the mechanism of several electromagnetic interferences on the vehicle is discussed in depth. By adopting the anti-interference design methods such as filtering,bypassing and decoupling,the anti-interference circuit design of the internal signals of the engine oxygen sensor,the magnetoelectric speed sensor and the knock sensor input ECU is carried out. The ECU input signal anti- interference design meets the relevant requirements of the national standard. At the same time,the engine ECU is tested on the prototype vehicle loading operation. The stable operation indicates that the designed ECU input signal anti-interference circuit meets the electromagnetic compatibility performance requirements.
部分文件列表
| 文件名 | 大小 |
| 发动机ECU输入信号的电磁兼容设计.pdf | 2M |
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