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

Hydraulik-ring Gmbh

Rolf Frech

Alfred Trzmiel

Wolfgang Stephan

Markus Goehring

Johann-Georg Ulrich

Freidhelm Hage

In a hybrid vehicle having at least one electric motor which is usable as a generator and charges a vehicle battery during a recuperation phase, there is provided an additional actuating element independent of a brake system which is used to transfer the electric motor into its recuperation state without activating the brake system. Alternatively, the additional actuating element may operate in conjunction with the brake system, such that the brake pedal may also be used to transfer the electric motor into its recuperation state.

Hybrid vehicle

An internal-combustion engine has a camshaft drive in which the outlet camshaft driven by the crankshaft drives the inlet camshaft via a chain. For the tensioning of the chain, two hydraulic pistons are pressed in opposite directions with respect to one another against the loose end and the load end of the interior side of the chain. For adjustment of the relative camshaft rotating position, the unit consisting of the hydraulic piston and the chain is shifted transversely to the camshafts so that the loose end is shortened and the load end is lengthened, or vice versa.

Arrangement for the tensioning and adjusting of a camshaft chain drive

Growing community of inventors

Weissach-Flacht, Germany

Rolf Frech