Vehicle-drive control device and method and program therefor

Abstract

The present invention includes a target-engine-speed acquisition means for acquiring a target engine speed necessary to reduce engine speed, thereby stopping the engine at a target stop position; a crank-angle acquisition means for acquiring a crank angle indicative of the position of a crankshaft; and a target-engine-speed correction means for correcting the target engine speed according to the acquired crank angle. Since the target engine speed is corrected according to the crank angle, the engine can be stopped at the target stop position even if the friction in the engine, the electric motor, etc. varies, even if the temperature or viscosity of the lubricating and cooling oils varies, or even if the vehicle is accelerated or decelerated during the reduction of the engine speed.

Description

technical field [0001] The present invention relates to a vehicle drive control device, a vehicle drive control method and a program thereof. Background technique [0002] Conventionally, in a vehicle drive device (drive train) in which a generator motor is provided between an engine and a transmission, the rotor of the generator motor is connected between the input shaft of the engine and the transmission, and in the radial direction of the rotor The outer side sets the stator. In addition, in the vehicle driving device, the generator motor can be used as a motor and driven, and the generated torque of the generator, that is, the generator torque can be transmitted to the engine to start rotation, or the generator motor can be driven. The generator motor is used as a generator, and generates electric energy by recovering the rotational energy of the rotor. [0003] Furthermore, in a vehicle driving device of a hybrid vehicle that is equipped with a planetary gear unit, a ...

AI Technical Summary

Problems solved by technology

[0018] This makes it more difficult to bring the crankshaft to the target stop position at the end of the brake control, making it impossible to stop the engine at the target stop position

[0019] Furthermore, if the engine cannot be stopped at the target stop position, the generator must be driven to rotate the crankshaft at a predetermined time after the engine stops, which will cause shock and discomfort to the occupants of the vehicle.

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