Method for operating a hybrid motor vehicle
First Claim
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1. A method for operating a hybrid motor vehicle, which comprises:
- supplying, with an electric machine of a hybrid motor vehicle, a varying torque to an internal combustion engine of the hybrid motor vehicle during an idling operation of the internal combustion engine such that cyclic irregularities in the idling operation of the internal combustion engine are reduced; and
concurrently operating the internal combustion engine during the idling operation with an ignition angle and a volumetric efficiency optimized for a present operating state and without retarding the ignition angle for building up a torque reserve.
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Abstract
A method for operating a hybrid motor vehicle having an internal combustion engine and at least one electric machine is provided. At least one of the electric machines supplies a varying torque to the internal combustion engine such that cyclic irregularities of the internal combustion engine during idling are reduced and, at the same time, the internal combustion engine is operated during idling with an ignition angle and a volumetric efficiency optimized for this operating state and without retarding the ignition angle for building up a torque reserve.
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Citations
11 Claims
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1. A method for operating a hybrid motor vehicle, which comprises:
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supplying, with an electric machine of a hybrid motor vehicle, a varying torque to an internal combustion engine of the hybrid motor vehicle during an idling operation of the internal combustion engine such that cyclic irregularities in the idling operation of the internal combustion engine are reduced; and concurrently operating the internal combustion engine during the idling operation with an ignition angle and a volumetric efficiency optimized for a present operating state and without retarding the ignition angle for building up a torque reserve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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