A method for starting an engine includes preloading a spring of a torsion damper by transmitting torque having a magnitude less than engine cranking torque from an electric motor through a clutch to the spring, before cranking the engine, increasing a torque capacity of the clutch, and using the electric motor to crank the engine in response to a command to start the engine.
Hybrid electric vehicle engine starting with a preloaded damper spring
2015-09-29
Patent
Electronic Resource
English
Hybrid-electric vehicle engine starting method and system
European Patent Office | 2016
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