Abstract: In view of the demand for electric vehicle to charge at the trough of electricity price, this paper proposes a design scheme of electric vehicle reserved charging function. Users can set reserved charging parameters through the central control screen or App, including start time, end time, repeat cycle, and whether to continue charging if the end time is not full, and send them to T-BOX. T-BOX sends the charging request status to vehicle control unit according to the charging reservation setting and the current time, and vehicle control unit decides whether to charge the vehicle or wait for charging according to the charging status request flag sent by T-BOX and the vehicle status. The logic of the function is reasonable after the real car test, and it can meet the needs of users to make an appointment to charge and charge immediately.

Key words: Electric vehicle; Reserved charging; Function design; Parameters set

摘要： 针对电动汽车在电价波谷时充电的需求，文章提出一种电动汽车预约充电功能设计方 案。用户通过中控屏或 App 设置将预约充电参数，包括开始时间、结束时间、重复周期、到 结束时间未充满时是否继续充电发给 T-BOX。T-BOX 根据预约充电设置及当前时间，发送充 电请求状态给整车控制器，整车控制器根据 T-BOX 发送的充电请求状态并结合整车状态，决 定整车充电还是等待充电。经实车测试该功能逻辑合理，满足用户预约充电以及立即充电的 需求。

关键词: 电动汽车；预约充电；功能设计；参数设置