The invention discloses a power switch circuit and system of an automobile controller, and a control method an automobile of the system, and relates to the technical field of automobile electronics. The power switch circuit comprises: a switch device, wherein one end of the switch device is configured to be connected with a storage battery power supply, and the other end of the switch device is configured to be connected with the automobile controller; and two driving devices, wherein one driving device is configured to trigger and drive the switching device to be switched on when an ignition lock connected to a storage battery power supply is switched to an ON gear, and the other driving device is configured to trigger and drive the switching device to be switched on by a high-level signal sent by an MCU (Microprogrammed Control Unit) of an automobile controller. If at least one driving device enables the switching device to be switched on, the automobile controller is in a power-on state, and otherwise, the automobile controller is in a power-off state. According to the invention, delayed power-off of the automobile controller can be realized, abnormal power-off of the automobile controller caused by sudden power-off of the ON gear of the ignition lock is avoided, and reliable power supply/power taking of the automobile controller is ensured.
本申请公开了一种汽车控制器的电源开关电路、系统、控制方法和汽车,涉及汽车电子的技术领域,电源开关电路包括:开关器件,其一端被配置为与蓄电池电源相连,另一端被配置为与汽车控制器相连;两个驱动器件,一个驱动器件被配置为由连于蓄电池电源的点火锁切换至ON档时触发并驱动开关器件导通,另一个驱动器件被配置为由汽车控制器的MCU发出的高电平信号触发并驱动开关器件导通;同时,若至少一个驱动器件使得开关器件导通,则汽车控制器处于上电状态,否则汽车控制器处于下电状态。本申请能够实现汽车控制器的延时下电,避免点火锁ON档突发断电导致汽车控制器异常下电,保证汽车控制器的可靠供电/取电。
Power switch circuit and system of automobile controller, and control method and automobile of system
汽车控制器的电源开关电路、系统、控制方法和汽车
18.02.2022
Patent
Elektronische Ressource
Chinesisch
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen |
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