The invention discloses a voltage monitoring method, a voltage monitoring device and an electric vehicle. The voltage monitoring device comprises a power supply conversion module and a microcontroller electrically connected with the power supply conversion module. The power conversion module is used for outputting voltage. The microcontroller comprises an ADC module, a monitoring module and an IO module. The ADC module is used for obtaining the output voltage of the power conversion module and judging whether the output voltage is abnormal or not. The monitoring module is used for outputting a control signal through the IO module when the output voltage is abnormal, and the power conversion module stops outputting the voltage correspondingly according to the control signal. On the basis, the diagnosis coverage rate of single-point fault measurement of the power conversion module can reach 99%, so that the corresponding ASIL D level is met.
本申请公开了一种电压监控方法、电压监控装置及电动汽车。电压监控装置包括电源转换模块和电连接电源转换模块的微控制器。电源转换模块用于输出电压。微控制器包括ADC模块、监控模块和IO模块。ADC模块用于获取电源转换模块的输出电压,以及判断输出电压是否异常。监控模块用于当输出电压出现异常情况时,通过IO模块输出控制信号,电源转换模块对应依据控制信号停止输出电压。基于此,可以使电源转换模块的单点故障度量的诊断覆盖率达到99%,以满足对应的ASIL D的等级。
Voltage monitoring method, voltage monitoring device and electric vehicle
电压监控方法、电压监控装置及电动汽车
2022-04-08
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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