START CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

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START CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

This abstract first appeared for US patent application 18664545 titled 'START CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Original Abstract Submitted

A control device for starting an internal combustion engine by outputting torque from an electric motor connected to a torque transmission path from an internal combustion engine to a drive wheel so as to be capable of transmitting torque, wherein a pulsating component of a reaction force torque generated by starting the internal combustion engine is obtained, and a pulsating component of a torque input to the compositing position is obtained on the basis of a spring constant, a damping coefficient, and a moment of inertia of a power transmission member between a compositing position where torque is transmitted from the electric motor to the torque transmission path and the internal combustion engine, and a pulsating component of the reaction force torque, and an AC component torque and a cranking torque are added to determine a torque command value of the electric motor when starting the internal combustion engine.