Electrical Energy Management of a Vehicle System of a Motor Vehicle

An apparatus for electrical energy management of a vehicle system of a motor vehicle, the apparatus comprising:

• a power supply unit configured to supply energy to the vehicle system of the motor vehicle, wherein the power supply unit has a normal mode as a first operating state and a standby mode as a second operating state;
• a distributor apparatus, an output side of which has voltage levels for supplying electrical energy to vehicle system components of the vehicle system of the motor vehicle, wherein the distributor apparatus is electrically connected to the power supply unit;
• a state monitoring apparatus configured to monitor the operating state of the power supply unit and to actuate the distributor apparatus;
• a computer apparatus, wherein an input side of the computer apparatus is electrically connected to the output side of the distributor apparatus, via at least one voltage level;
• the computer apparatus has an operating system apparatus and a volatile computer data memory, wherein the volatile computer data memory is configured to keep vehicle system state data from vehicle system components of the vehicle system of the motor vehicle in stored fashion, and wherein
• the distributor apparatus is actuated by the state monitoring apparatus in the normal mode such that voltage levels for the computer apparatus and for vehicle system components of the vehicle system of the motor vehicle are provided,
• the distributor apparatus is actuated by the state monitoring apparatus in the standby mode such that merely a voltage level for the volatile computer data memory of the computer apparatus is provided, and wherein
• the volatile computer data memory is configured to be kept supplied with current even in the standby mode such that the volatile computer data memory does not lose the vehicle system state data stored therein.

A method for electrical energy management of a vehicle system of a motor vehicle, the method comprising:

• monitoring a system state of the motor vehicle, and, in a case in which a result of the monitoring of the system state of the motor vehicle is that the motor vehicle changes from a normal mode to a standby mode:
• activating a standby energy supply, wherein the standby energy supply has merely an electrical energy supply for a computer apparatus of an apparatus for electrical energy management of the vehicle system of the motor vehicle such that a volatile computer data memory of the computer apparatus, with random access, can continue, during the standby mode, to keep in stored fashion data that are stored on the volatile computer data memory, and wherein
• the data stored on the volatile computer data memory have latest operating data from vehicle system components of the vehicle system of the motor vehicle, and
• deactivating a normal energy supply, wherein the normal energy supply involves supplying vehicle system components of the vehicle system of the motor vehicle with electrical energy, wherein the deactivating of the normal energy supply is effected such that the vehicle system components of the vehicle system of the motor vehicle are no longer supplied with electric current.

A motor vehicle comprising:

• an electrical energy supply;
• a vehicle system having at least one vehicle system component;
• and
• an apparatus for electrical energy management of the vehicle system of a motor vehicle, wherein
• the electrical energy supply is configured to supply the apparatus with a first electrical energy for a normal mode and with a second electrical energy for a standby mode,
• the apparatus is configured so as, in the standby mode, to supply merely part of the apparatus with electrical energy, and,
• in the normal mode, to supply the apparatus completely and the at least one vehicle system component of the vehicle system with electrical energy.