The invention discloses a Tbox disconnection wake-up circuit and a wake-up method thereof. The Tbox disconnection wake-up circuit comprises a rechargeable lithium battery BAT, an N-channel field effect transistor Q2 for disconnection detection, a P-channel field effect transistor Q1 for supplying power to a voltage output circuit, the voltage output circuit and a P-channel field effect transistor Q4 for wake-up voltage output. The invention provides a circuit capable of waking up a Tbox when a low-voltage storage battery of an electric vehicle is in a power shortage state and a power battery is dismounted, ensuring that the Tbox has enough time to judge that an input port of a detection line is in a suspended state after being waken up, and reporting the state to a platform. Therefore, a manager of the vehicle can obtain the dismantled state of the power battery through the platform, and safety risks such as electric shock of personnel are avoided to a certain extent. When the power battery is not dismounted, the power consumption circuit of the whole circuit is in a microampere level, the power consumption is very low, and the standby time can be effectively prolonged.
本发明公开了一种Tbox断线唤醒电路及其唤醒方法,Tbox断线唤醒电路包括充电锂电池BAT、用于断线检测的N沟道场效应管Q2、给电压输出电路供电的P沟道场效应管Q1、电压输出电路、用于唤醒电压输出的P沟道场效应管Q4。本发明提供一种当电动车辆的低压蓄电池处于亏电状态、动力电池被拆除时,能够唤醒Tbox的电路,并确保Tbox被唤醒后,有足够的时间判断检测线输入端口为悬空状态,并将该状态上报至平台,从而车辆的管理者能够通过平台获取动力电池被拆除的状态,一定程度上规避人员触电等安全风险。当动力电池未被拆除时,整个电路的耗电电路处于微安级别,功耗非常低,能有效延长待机时间。
Tbox disconnection wake-up circuit and wake-up method
一种Tbox断线唤醒电路及唤醒方法
2023-07-07
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES |
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