Operating an on-board power supply of an electrically drivable motor vehicle
AssigneesAudi AG, Volkswagen Aktiengesellschaft
InventorsGeorg Dobmeier, Tobias Grassl, Kai Marschall, Cornelius Rettner, Bjarne Wirsen
Life of this patent
Estimating the term…
Abstract
The described examples may relate to a method of operating an on-board power supply of an electrically drivable motor vehicle, in which at least one electrical machine is supplied with electrical energy from a vehicle battery connected to the on-board power supply via an inverter connected to the on-board power supply in an intended drive operation, and the inverter may include a radio interference suppression filter to reduce grid-bound interferences. In an example, at least the inverter may be electrically disconnected from the on-board power supply in a charging operation.
Claims10
A method of operating an on-board power supply of an electrically drivable motor vehicle, comprising:
- supplying electrical energy to at least one electrical machine from a vehicle battery connected to the on-board power supply via an inverter connected to the on-board power supply in an intended drive operation, the inverter includes a radio interference suppression filter to reduce grid-bound interferences;
- and
- electrically disconnecting at least the inverter from the on-board power supply in a charging operation of the electrically drivable motor vehicle.
An on-board power supply for an electrically drivable motor vehicle, comprising:
- at least a first electrical connection to connect to a vehicle battery of the electrically drivable motor vehicle;
- a second electrical connection to connect to an inverter that is electrically connected to at least one electrical machine to drive the electrically drivable motor vehicle in an intended drive operation, the inverter includes a radio interference suppression filter to reduce grid-bound interferences;
- a charging connection to electrically couple the on-board power supply to a charging station external to vehicle in a charging operation;
- a switching unit to electrically disconnect at least the second electrical connection from the on-board power supply depending on a switching state of the switching unit in the charging operation.
A motor vehicle comprising:
- at least one electrical machine to drive the motor vehicle (50) in an intended drive operation;
- an on-board power supply to distribute electrical energy between electrical devices of the motor vehicle;
- an inverter connected to the on-board power supply and to the at least one electrical machine to electrically couple the at least one electrical machine to the on-board power supply, the inverter includes a radio interference suppression filter to reduce grid-bound interferences, a vehicle battery connected to the on-board power supply to provide electrical energy;
- and
- a charging connection connected to the on-board power supply to electrically couple the on-board power supply to a charging station external to vehicle in a charging operation,
- wherein the on-board power supply (10) includes,
- at least a first electrical connection to connect to the vehicle battery,
- a second electrical connection to connect to the inverter that is electrically connected to the at least one electrical machine to drive the motor vehicle in an intended drive operation,
- a charging connection to electrically couple the on-board power supply to a charging station external to vehicle in a charging operation, and
- a switching unit to electrically disconnect at least the second electrical connection from the on-board power supply depending on a switching state of the switching unit in the charging operation.
Dependencies are inferred from the claim text.