Control device for hybrid vehicle

Abstract

A control device is applied to a vehicle (1) provided with a transmission (10) having an input shaft (11) connected to an internal combustion engine (2) and an output shaft (12) connected to driving wheels (5), and a second clutch (25) capable of switching an MG (3) between an input shaft connection state in which the MG (3) is connected to the input shaft (11) and an output shaft connection state in which the MG (3) is connected to the output shaft (12), in the case where the transmission (10) is shifted when the second clutch (25) is in the output shaft connection state, drives the driving wheels (5) by the MG (3) such that torque transmitted to the driving wheels (5) does not fluctuate, and in the case where the transmission (10) is shifted when the second clutch (25) is in the input shaft connection state, synchronizes the input shaft (11) and the output shaft (12); during the transmission shifting by the MG (3). When requested driving force for the vehicle (1) is a determination value or less, the second clutch (25) is switched to the output shaft connection state, and when the requested driving force is greater than the determination value, the second clutch (25) is switched to the input shaft connection state.

Description

technical field [0001] The present invention relates to control of a hybrid vehicle equipped with an internal combustion engine and an electric motor as power sources, a transmission is provided in a power transmission line between the internal combustion engine and driving wheels, and the connection destination of the electric motor can be selectively switched to an input shaft or an output shaft of the transmission device. Background technique [0002] There is known a motor equipped with an internal combustion engine and an electric motor such as a motor generator as a power source, and a transmission is provided in the power transmission line between the internal combustion engine and the drive wheels, and the connection destination of the output shaft of the motor generator can be switched to the transmission by a switching mechanism. The input shaft and the output shaft of the transmission are hybrid vehicles. As a power transmission control device applied to such a h...

AI Technical Summary

Problems solved by technology

[0007] In the device of Patent Document 1, when a driving force exceeding the rated output of the motor generator is requested to the vehicle when the gear is switched, the assist by the motor generator may become insufficient.

In this case, since the torque transmitted to the drive wheels is reduced, the driver may feel uncomfortable

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