| 摘要 |
<p>The invention relates to a method and an arrangement for powering up a DC distribution system in a hybrid vehicle power train, said power train comprising an electric storage system, an internal combustion engine (12), an electric motor/generator (13), a clutch device to connect the electric motor/generator (13) to the internal combustion engine (12), a power electronics unit (16) with a voltage regulator (17) connected to the electric motor/generator (13), and an electronic control unit (19) for controlling the power train, wherein the electric storage system and the electric motor/generator (13) are connectable to one or more electrical loads for driving the vehicle. The powering up comprises the steps of; - initializing internal combustion engine ignition; - initializing a diagnostics test of power train components; - cranking the internal combustion engine (12); - requesting pre-charge of the electrical loads from the power electronics unit (16); - connecting the electric storage system to the electrical loads when the pre-charge and the diagnostics test are completed; - resuming normal operation for the power electronics unit (16).</p> |
