Drive device
AssigneeAisin Aw Co., Ltd.
InventorsHideki Hisada, Kazuo Aoki, Hiroyuki Kojima
Life of this patent
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Abstract
A hybrid drive apparatus includes an engine, a first electric motor for generating electric power by using at least a portion of its output and for controlling the speed of the engine and a control unit for controlling the engine and the first electric motor. The control unit performs a prepositioning control for positioning the engine being fuel-cut to a predetermined cranking start position such as a constant crank angle position or a constant cranking load position by the motoring of the first electric motor. As a result, the engine can always be started under identical conditions, and the torque vibrations to be outputted to a wheel have identical waveforms so that a simple torque correction can be made by outputting corresponding waveform data.
Claims28
A drive apparatus, comprising:
- a first electric motor that raises an engine to a speed for an ignition;
- and
- a control unit for controlling the engine and the first electric motor, wherein the control unit performs prepositioning control for controlling the first electric motor with a torque output so that the engine is positioned at a predetermined crank-shaft position when stopped and causes the first electric motor to output a torque short of a torque necessary for running the engine continuously.
Dependencies are inferred from the claim text.