Method for operating a motor vehicle with a hybrid drive

摘要

The invention relates to a method for operating a motor vehicle with a hybrid drive (10), in which at least one operating medium of the motor vehicle is heated to a predefined desired temperature by a dielectric heating device (36, 38). In this way, immediately following a cold start of the motor vehicle, components through which the operating medium flows can be brought particularly rapidly to their optimum operating temperature so that a particularly energy-saving operation of the motor vehicle is possible.

主权项

1. A method of operating a motor vehicle, comprising:
ascertaining whether a cold start is present; determining ambient temperature; supplying an on-board high-voltage electrical system from a high-voltage battery of the motor vehicle; in the presence of the cold start and when the ambient temperature falls below a predetermined threshold value, heating at least one operating medium, which is a coolant of the high-voltage battery of the motor vehicle, to a predefined desired temperature by a dielectric heating device through which the operating medium, that is the coolant of the high-voltage battery, flows and which is directly integrated into the high-voltage battery; heating transmission oil of the motor vehicle as another operating medium by a further dielectric heating device, and supplying energy to the dielectric device, which heats the coolant of the high-voltage battery, and to the another dielectric heating device, which heats the transmission oil, from the on-board high-voltage electrical system supplied from the high-voltage battery.