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1. (WO2017148814) METHOD AND DEVICE FOR OPERATING A HYBRID VEHICLE HAVING AN ELECTRICAL ENERGY STORE, AN ELECTRIC MOTOR AND AN INTERNAL COMBUSTION ENGINE

Pub. No.:    WO/2017/148814    International Application No.:    PCT/EP2017/054321
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Sat Feb 25 00:59:59 CET 2017
IPC: B60W 20/13
B60W 20/20
B60W 50/08
B60L 11/18
Applicants: BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT
Inventors: SITTIG, Andy
WIESBECK, Ferdinand
MAU, Daniel
GESER, Andreas
Title: METHOD AND DEVICE FOR OPERATING A HYBRID VEHICLE HAVING AN ELECTRICAL ENERGY STORE, AN ELECTRIC MOTOR AND AN INTERNAL COMBUSTION ENGINE
Abstract:
The invention relates to a method and to a device for operating a hybrid vehicle having an electrical energy store (2) (e.g. high-voltage battery) and an electric drive and having an electric motor in which a specific mode ("battery control") can be activated by actuating a defined operator control element (4). In this context, after the activation of the specific mode a special drive operating strategy (SAB) for the internal combustion engine is triggered with the electric drive switched off, by means of which special drive operating strategy (SAB) an increased charge gradient (G1) is obtained if the current state of charge (SOC) is below a desired state of charge (SOC_W) or at least below a lower tolerance threshold (SU) with respect to a desired state of charge. Any desired state of charge (SOC_W) of the energy accumulator can preferably be configured by the driver by means of a further operator control element (3). Furthermore, in particular acoustics-oriented and/or efficiency-oriented limitations on an increase in the rotational speed and/or increase in the torque of the internal combustion engine can be reduced or entirely cancelled by means of corresponding programming of the special drive operating strategy (SAB).