Method for operating onboard network for motor car, involves checking whether current vehicle velocity is smaller than given velocity threshold value, and determining movement of motor vehicle or influencing parameter

摘要

The method involves checking whether a current vehicle velocity is smaller than a given velocity threshold value. An engine stop phase is determined to be imminent based on movement of a motor vehicle or influencing parameter. The engine stop phase is determined to be imminent based on brake pedal operation time, vehicle deceleration value and vehicle speed value. A main energy storage unit (12) and an auxiliary energy accumulator (14) are connected in parallel with a voltage generator (16). The main energy storage unit and the auxiliary energy accumulator are connected in parallel together. An independent claim is also included for an onboard network for a motor vehicle.