Method and system for controlling a hybrid vehicle
AssigneeDr. Ing. h.c.F. Porsche Aktiengesellschaft
InventorsNils Sauvlet, Marco Fleckner, Dieter Kraxner, Markus Goehring
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Abstract
A system and method for controlling a hybrid vehicle drive has a device for detecting a charging power of a heavy-duty battery for an electric motor, a device for determining at least one fuel consumption parameter for several different transmission gear positions at the detected charging power and for determining an optimized gear position in which the determined fuel consumption parameter indicates an optimized fuel consumption. The determining device controls the gear position of the transmission to the determined optimized gear position by via a transmission control device.
Claims6
Method of controlling a hybrid vehicle drive having an internal-combustion engine, an electric motor and a transmission control device for controlling a gear position of a stepped automatic transmission, comprising:
- detecting a charging power of a heavy-duty battery for the electric motor,
- determining at least one fuel consumption parameter for several different gear positions of the transmission at the detected charging power,
- determining an optimized gear position in which the determined fuel consumption parameter indicates an optimized fuel consumption, and
- controlling the gear position of the transmission to the determined optimized gear position with the transmission control device.
System for controlling a hybrid vehicle drive having an internal-combustion engine, an electric motor and a transmission control device for controlling a gear position of a stepped automatic transmission, comprising:
- a first device configured to detect a charging power of a heavy-duty battery for the electric motor, and
- a second device configured to determine at least one fuel consumption parameter for several different gear positions of the transmission at a detected charging power, and for determining an optimized gear position in which the determined fuel consumption parameter indicates an optimized fuel consumption, wherein
- the second device is configured to control the gear position of the transmission to the determined optimized gear position via a transmission control device.
Dependencies are inferred from the claim text.