Reducing torque disturbances and improving fuel economy in hybrid electric powertrains
An engine control system for controlling transitions between activated and deactivated modes in a hybrid powertrain driven by a displacement on demand engine and an electric machine includes a calculator that calculates a desired powertrain torque. An engine control controls operation of the engine...
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| Format | Patent |
| Language | English |
| Published |
12.05.2009
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| Online Access | Get full text |
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| Summary: | An engine control system for controlling transitions between activated and deactivated modes in a hybrid powertrain driven by a displacement on demand engine and an electric machine includes a calculator that calculates a desired powertrain torque. An engine control controls operation of the engine to produce an engine torque. An electric machine control controls operation of the electric machine to produce an electric machine torque. The electric machine torque supplements the engine torque to achieve the desired powertrain torque during a transition from the activated mode to the deactivated mode. |
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