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Transmission operation in a vehicle with an electric motor
Transmission operation in a vehicle with an electric motor
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机译：带有电动机的车辆中的变速器操作
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摘要
A control system for a vehicle (100, Fig. 4) having an engine 12, a transmission 14, and an electric motor 26, the control system being configured to: receive one or more electrical signals indicative of a vehicle parameter (602, Fig. 6); determine, based on said one or more electrical signals, a requirement to perform an operation of the transmission (14) while the vehicle (100) is in motion and the engine (12) is shut off (604, Fig. 6); and in dependence on determining said requirement: activate the electric motor (26) to increase the rotational speed of the engine (606, Fig. 6); recouple the engine (12) and the transmission (608, Fig. 6); and perform the operation of the transmission (610, Fig. 6); By utilising an electric motor to rotate the engine, then the engine is not required to be restarted in order to enable a gear shift to be achieved; The engine thus does not require the input of fuel and therefore the fuel efficiency of the engine may be increased. A method of controlling a vehicle is also disclosed.
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