COLD TEMPERATURE ENGINE START STRATEGIES

摘要

A method of starting a vehicle may include, in response to an expected driver entry, stroking a clutch configured to couple an engine to an electric machine for a predetermined time period. The method may further include, in response to an engine start request received during the predetermined time period, providing power to the electric machine to spin the electric machine at a speed at least equal to a target engine cranking speed.

主权项

1. A vehicle comprising:
a friction element configured to selectively mechanically couple an engine and an electric machine; and a controller programmed to, in response to a signal indicative of an unlocked or open door, command the friction element to couple the engine to the electric machine prior to receiving an engine start request.