Bayerische Motoren Werke Aktiengesellschaft

Arthur Huelsmann

Ferdinand Wiesbeck

Eric Berger

Bernhard Hoess

Richard Eiletz

Udo Ochner

Alexander-Wilhelm Otte

Christian Schmidt

Daniel Mau

Sebastian Pflaum

Tomasz Jedraszek

Thomas Muschler

Andreas Raith

Johann Engl

An operating method for a power train of a hybrid vehicle having an internal combustion engine, an electric drive machine and a rechargeable electric energy storage unit configured to supply the electric drive machine with energy, includes controlling the power train in a zero emission mode in which the internal combustion engine is deactivated and in which the electric drive machine serves to drive the hybrid vehicle, and in an emission mode in which the internal combustion engine is operated in a fired operation. The method also includes determining, for a system initiated change of operating mode from the zero emission mode into the emission mode, a starting command for the internal combustion engine. The change of operating mode from the zero emission mode into the emission mode is blocked for one of a predefinable delay time, a predefinable quantity of energy extracted from the electric energy storage unit, or a predefinable travel distance.

Operating method for a hybrid vehicle

A method and a device operate a hybrid vehicle having an electric energy store, an electric propulsion system and an internal combustion engine. A special operating strategy that can be initiated for the internal combustion engine allows the state of charge of the energy store to be increased when predefined acoustic conditions are met. The special operating strategy has a performance-enhancing effect by raising the load point until acoustic limits are reached which are ascertained in real time, can be predefined in a variable manner and are defined in accordance with ascertained potentials for masking specific acoustic events. The disclosed method and device for carrying out the method raise the acoustic limits for controlling the load point of the internal combustion engine at least to the level that is currently admissible as a result of at least one acoustically relevant event being masked, possible acoustically relevant events being defined by vehicle-internal sources of influence, the characteristic spectra of which are known from empirical assessments and the occurrence of which is controlled by vehicle-internal systems.

Method and device for operating a hybrid vehicle comprising an electric energy store, an electric motor and an internal combustion engine

A method and a device operate a hybrid vehicle having an electric energy store, an electric propulsion system and an internal combustion engine. A special operating strategy that can be initiated for the internal combustion engine allows the state of charge of the energy store to be increased when predefined acoustic conditions are met. The special operating strategy has a performance-enhancing effect by raising the load point until acoustic limits are reached which are ascertained in real time, can be predefined in a variable manner and are defined in accordance with ascertained potentials for masking specific acoustic events. The disclosed method and device for carrying out the method raise the acoustic limits for controlling the load point of the internal combustion engine at least to the level that is currently admissible as a result of at least one acoustically relevant event being masked.

Method and device for operating a hybrid vehicle comprising an electric energy store, and electric motor and an internal combustion engine

A mounting device is provided for oscillatingly mounting a range extender, which consists of an internal combustion engine and a generator, on a body and/or a chassis of a motor vehicle by way of vibration-damping elements. At least two of the vibration-damping elements are integrated in load-carrying bearings and one additional one is integrated in a supporting bearing for supporting moments. The mounting device is characterized in that the vibration-damping elements of the mounting device at least for the load-carrying bearings are secured to the range extender, i.e. a first vibration-damping element is secured to the internal combustion engine and a second vibration-damping element is secured to the generator.

Torque roll axis mounting system for serial range extenders without a through-drive

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Munich, Germany

Arthur Huelsmann