HEAVY-DUTY ENGINE SPEED SYNCHRONIZATION FOR MANUAL TRANSMISSIONS

摘要

A method includes detecting a shift event out of a first gear of a manual transmission based on at least one of speed, acceleration, and torque of an engine. The engine and the transmission comprise a powertrain system of a vehicle. The first gear is determined based on each of engine speed and vehicle speed prior to the shift event. A desired gear is predicted based on the first gear and at least one of engine speed, vehicle speed, and vehicle acceleration. Transmission input speed for the desired gear is determined based on each of the engine speed and the vehicle speed. Engine speed is controlled to synchronize the engine speed with the transmission input speed for the desired gear.