The invention discloses a heating circuit of an electric automobile and the electric automobile. The circuit comprises a fusing circuit and a heating circuit, a sampler which is used for collecting the actual current of the heating circuit, a driving circuit which is connected with the sampler and the heating circuit, and a control circuit which is connected with the sampler and the driving circuit so as to judge that the driving circuit is short-circuited and control the driving circuit to send a driving signal to the fusing circuit when the actual current is greater than the preset current, so that the fusing circuit executes a fusing action and stops working of the heating circuit. Therefore, the problem that a scheme for controlling PTC heating in the prior art is high in cost or large in potential safety hazard is solved, and the safety and reliability of the vehicle are greatly improved.
本申请公开了一种电动汽车的加热电路及电动汽车,其中,电路包括:熔断电路与加热电路;采样器,用于采集加热电路的实际电流;驱动电路,驱动电路分别与采样器和加热电路相连;控制电路,控制电路分别与采样器和驱动电路相连,以在实际电流大于预设电流时,判定驱动电路短路,控制驱动电路发送驱动信号至熔断电路,使得熔断电路执行熔断动作,停止加热电路工作。由此,解决了相关技术中关于控制PTC加热的方案,成本较高或者安全隐患较大的问题,大大提升了车辆的安全性和可靠性。
Heating circuit of electric automobile and electric automobile
电动汽车的加热电路及电动汽车
2021-07-02
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 |
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