Dr. Ing. H.c. F. Porsche Aktiengesellschaft

Heinz Rebholz

Alexander Klausmann

Michael Werner

Naser Abu Daqqa

Steffen Kehl

A holding apparatus for securing a fan for cooling a component of a vehicle, having a main body made from foam material. The main body has a fan receptacle for receiving the fan in a positively locking manner at least in sections. The fan receptacle has an air inlet for feeding in air to the fan and an air outlet for discharging air from the fan. The main body also has at least one inlet opening with an adjoining inlet duct and at least one outlet opening with an adjoining outlet duct. The inlet duct is in a fluid-communicating connection with the air inlet and the outlet duct is in a fluid-communicating connection with the air outlet.

Holding apparatus for securing a fan for cooling a component of a vehicle

A motor vehicle has a high-voltage battery and two separate electric machines. Each electric machine is associated with a power electronics unit, and each power electronics unit has a DC-to-DC converter. Each DC-to-DC converter is designed to reduce a high voltage of the high-voltage battery to a predetermined voltage. The two DC-to-DC converters of the two power electronics units are connected electrically in parallel and are set to different voltage values.

Method and arrangement for providing an electrical power for an on-board power supply system of a motor vehicle

A transfer device for energy in a motor vehicle is designed for connection to a first vehicle electrical distribution system and a second vehicle electrical distribution system, which each comprise an associated energy store. In this case, the transfer device comprises a first sampling device for determining that the two energy stores have been filled sufficiently, a second sampling device for detecting an energy withdrawal from one of the vehicle electrical distribution systems, and a DC-to-DC converter for transferring energy between the vehicle electrical distribution systems. In addition, a control device is provided which is designed, in an automatic mode to control a transfer of energy from one of the vehicle electrical distribution systems into the other vehicle electrical distribution system on the basis of the signals of the sampling devices when energy is withdrawn from the other vehicle electrical distribution system.

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Neuhausen, Germany

Heinz Rebholz