START/STOP CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE AND CONTROL DEVICE FOR ROTARY MACHINE

摘要

PROBLEM TO BE SOLVED: To solve a problem that time required to start an internal combustion engine is prolonged when performing processing for imparting initial rotation to the internal combustion engine by starting a motor generator by a sensorless method.

SOLUTION: A parallel hybrid vehicle executes stop control of an internal combustion engine (Step S12) by stopping a motor generator on the basis of a rotation angle θ by a high frequency superimposing method when a stop request of an internal combustion engine is issued (Yes in Step S10). When the internal combustion engine stops, a stop position of the motor generator is stored (Step S18). When a restart request of the internal combustion engine is issued, a rotation angle is estimated by the high frequency superimposing method by employing a stored stop position as an initial value. Based thereon, the internal combustion engine is started by starting the motor generator.

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