Patent ID: 9365210
Filing Date: 2016-06-14
CPC Classification: B60L,B60W,Y02T,Y10S

Claim Text:
1. A method for powering up a DC distribution system in a hybrid vehicle power train, the power train comprising an electric storage system, an internal combustion engine, an electric motor/generator, a clutch device to connect the electric motor/generator to the internal combustion engine, a power electronics unit with a voltage regulator connected to the electric motor/generator, and an electronic control unit for controlling the power train, wherein the electric storage system and the electric motor/generator are connectable to one or more electrical loads for driving, the vehicle, comprising initializing internal combustion engine ignition; initializing a diagnostics test of power train components; cranking the internal combustion engine using a starter motor; requesting pre-charge of the electrical loads from the power electronics unit, comprising requesting a predetermined voltage from the power electronics unit and controlling the voltage regulator to enter a pre-charge mode to power up the DC distribution system; connecting the electric storage system to the electrical loads when the diagnostics test and the pre-charge are completed; and resuming normal operation for the power electronics unit to complete powering up of the DC distribution system.