Coordinated actuation to start an engine
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United States of America Patent
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Oct 27, 2020
Grant Date -
May 23, 2019
app pub date -
Nov 21, 2017
filing date -
Nov 22, 2016
priority date (Note) -
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Abstract
A vehicle includes an engine and an electric machine coupled to a transmission element. The electric machine is also selectively coupled with the engine by a clutch. The vehicle includes a belt integrated starter-generator (BISG) operatively coupled to the engine. An electronic controller includes one or more inputs adapted to receive a temperature measurement and a request to start the engine. The electronic controller is programmed to energize the BISG and the electric machine in response to receiving an engine start request and a temperature measurement being less than a threshold temperature measurement. The electronic controller is further programmed to close the disconnect clutch to apply torque from the electric machine to the engine in response to the electric machine achieving a threshold electric machine speed.
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