The invention relates to a safe MOSFET circuit and a control method, the safe MOSFET circuit comprises a power supply module, a safe power control module, an airbag ignition module, a detection module and an MCU control module, the short circuit detection signal input end of the detection module is movably connected with the power supply output end of the safe power control module, and the short circuit detection signal input end of the detection module is movably connected with the power supply output end of the airbag ignition module. The open circuit detection signal output end of the detection module is connected with the signal input end of the safety power control module so as to adjust the voltage output by the safety power control module, and then short circuit or open circuit detection of a corresponding MOS tube in the safety power control module can be carried out. The detection module is connected with the safety power control module through a short circuit and open circuit detection signal input end, abnormal conditions in the circuit can be detected and responded in time, a redundancy control and detection mechanism is added, the risk of a single fault point is effectively reduced, the endurance capacity of the circuit to a high voltage condition is enhanced, and the service life of the circuit is prolonged. And the stable operation of the safety air bag system at the critical moment is ensured.
本申请涉及一种安全MOSFET电路及控制方法,安全MOSFET电路包括一种安全MOSFET电路,包括供电模块、安全功率控制模块、气囊点火模块、检测模块和MCU控制模块,检测模块的短路检测信号输入端与安全功率控制模块的电源输出端活动连接,检测模块的断路检测信号输出端与安全功率控制模块的信号输入端连接,以通过调整安全功率控制模块输出的电压,进而用于进行安全功率控制模块中对应MOS管的短路或者断路检测。检测模块则通过短路和断路检测信号输入端与安全功率控制模块相连,能够及时检测并响应电路中的异常情况,增加冗余控制和检测机制,有效降低了单一故障点的风险,并增强了电路对高压情况的耐受能力,确保了安全气囊系统在关键时刻的稳定运行。
Safe MOSFET circuit and control method
一种安全MOSFET电路及控制方法
2024-12-27
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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