A power system includes a battery charging path and a capacitor charging path disposed in parallel. During a surge event, the current limiting element limits current flow along the battery charging path to release battery stress. During the surge event, current is also prevented from flowing along the bypass path between the battery and the load by the switching element. In the steady state charging condition, the resistance of the current limiting element is reduced, thereby increasing the current flowing between the battery and the load along the battery charging path. In steady-state conditions, the switching circuit controls operation of the switching element, thereby also allowing current to flow between the battery and the load along the bypass path. Changes in the resistance of the current limiting element and/or actuation of the switching element by the switching circuit are optionally based on temperature changes and are passively effected without the need for an external control input signal.
一种电力系统包括并联设置的电池充电路径和电容器充电路径。在浪涌事件期间,电流限制元件限制电流沿着电池充电路径流动以释放电池应力。在浪涌事件期间,还通过开关元件来防止电流沿着旁路路径在电池与负载之间流动。在稳态充电条件下,电流限制元件的电阻减小,从而增加沿着电池充电路径在电池与负载之间流动的电流。在稳态条件下,开关电路控制开关元件的操作,从而还允许电流沿着旁路路径在电池与负载之间流动。电流限制元件的电阻的变化和/或开关电路对开关元件的致动可选地基于温度变化,并且是在不需要外部控制输入信号的情况下被动地实现的。
Battery stress relief system with bypass
具有旁路的电池应力释放系统
2023-02-03
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |