Thursday, October 08, 2009
When the vehicle is moving off from a stationary position, and when travelling at low to moderate speeds, the main electric motor/generator drives the vehicle. At these speeds the internal combustion engine operation is less efficient and is normally used only to charge the battery.
During normal driving, the combustion engine starts and drives the generator & the power divider. Power from the generator is used to drive the electric motor. The motor control unit controls the power divider so the drive remains at its most efficient.
When accelerating, as well as using power from the combustion engine, the control unit draws power from the battery and directs it to the electric motor/generator, providing more power to the wheels than the combustion engine could supply on its own.
During deceleration and braking the combustion engine is < Read More >