The invention relates to a pure electric vehicle PTC heater and a fault diagnosis method, a PTC heater body is provided with an anomaly detection module and an IGBT detection module, the anomaly detection module is controlled by the PTC heater body to perform anomaly detection action, and the IGBT detection module is controlled by the PTC heater body to perform anomaly detection action. The PTC heater body receives error signals of the anomaly detection module and the IGBT detection module and sends the error signals to the controller, and the PTC high-voltage cut-off module controls and receives the error signals of the anomaly detection module and the IGBT detection module to conduct high-voltage cut-off operation on the PTC heater body. According to the method, common faults and serious faults are distinguished, diagnosed and processed, different states of the PTC heater body are distinguished, and the state jump of the PTC heater body is used for assisting in fault diagnosis and processing, so that the PTC heater can be effectively protected from being damaged due to the faults in the operation process.
本发明涉及一种纯电动汽车PTC加热器及故障诊断方法,PTC加热器本体设有异常检测模块和IGBT检测模块,异常检测模块受PTC加热器本体控制做异常检测动作,IGBT检测模块受PTC加热器本体控制做异常检测动作,PTC加热器本体接收异常检测模块和IGBT检测模块的错误信号发送至控制器,PTC高压切断模块控制接收异常检测模块和IGBT检测模块的错误信号对PTC加热器本体做高压切断操作。本发明通过对普通故障和严重故障进行区分诊断和处理,对PTC加热器本体的不同状态加以区分,用PTC加热器本体状态跳变来辅助进行故障诊断和处理,从而可以有效保护PTC加热器在运行过程中不会由于故障导致损坏。
Pure electric vehicle PTC heater and fault diagnosis method
一种纯电动汽车PTC加热器及故障诊断方法
2023-03-10
Patent
Electronic Resource
Chinese
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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