Method for controlling an energy storage device of a mild hybrid motor vehicle and state of charge control device and motor vehicle with such a state of charge control device

摘要

The invention relates to a method for controlling an energy storage device (10) of a mild hybrid motor vehicle, wherein the energy storage device (10) has a total capacity. By means of a charge state control device (34) of the energy storage device (10), a charge state of the energy storage device (10) is set between an upper (oSW) and a lower threshold (uSW) of the total capacity according to a first operating state (step 100). At least one data item containing information is received by the state of charge control device (34), the information relating to the shutdown duration of the motor vehicle. Subsequently, according to a second operating state, the lower threshold value (uSW) is varied by the charge state control device (34) in relation to the lower threshold value (uSW) according to the first operating state as a function of the shutdown duration of the motor vehicle (step 150). The invention also relates to a corresponding charge state control device for a mild hybrid motor vehicle and a corresponding motor vehicle.