A system for a vehicle includes an electric machine configured to transfer power between an engine and traction battery, an auxiliary battery electrically connected with and isolated from the traction battery, and a controller programmed to, after receiving an engine start request, initiate an engine start using the batteries in response to available traction battery power being below a threshold, and initiate the engine start using the traction battery but not the auxiliary battery otherwise.
HYBRID ELECTRIC VEHICLE ENGINE CRANKING
2017-11-16
Patent
Elektronische Ressource
Englisch
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