Control apparatus for vehicle

Abstract

When switching to a shift stage having a smaller transmission gear ratio during regeneration, both the suppression of shift shock generation and the improvement of energy efficiency are achieved. A control apparatus for a vehicle driving apparatus provided with an input member which is drive-connected to an engine and a rotational electrical machine; an output member; and a transmission device comprising a plurality of frictional engagement elements so that a plurality of shift stages are switched by controlling engagement and disengagement of the plurality of frictional engagement elements, and a rotational driving force of the input member is changed by a transmission ratio of each shift stage and output to the output member, wherein when the transmission device switches to a shift stage having a smaller transmission gear ratio, under the conditions that the rotational electrical machine is regenerated, a disengagement side hydraulic pressure which is a hydraulic pressure of operating oil with respect to a disengagement side element representing the frictional engagement element at the disengagement side is controlled, and the disengagement side element is maintained in a slipping condition during the entirety of the shift transmission process.

Description

Technical field [0001] The present invention relates to a vehicle control device for controlling a vehicle drive device. The vehicle drive device has: an input member that is drivingly connected to an engine and a rotating electric machine; an output member; and a transmission device having a plurality of friction engagements The plurality of frictional engagement members are controlled to be engaged or disengaged, thereby switching between a plurality of gears, so that the rotational driving force of the input member is changed at the gear ratio of each gear and output to the output member. Background technique [0002] In recent years, hybrid vehicles have been put into practical use. The hybrid vehicles use both an engine and a rotating electric machine as a driving force source, thereby reducing the fuel consumption rate of the engine and reducing exhaust emissions. As an example of a vehicle drive device used in such a hybrid vehicle, for example, Patent Document 1 below pro...

AI Technical Summary

Problems solved by technology

In the case of regenerative operation of the rotating electrical machine, the relatively large negative torque output by the rotating electrical machine is transmitted to the input member, so if the above-mentioned normal clutch speed change is performed, the negative torque output by the rotating electrical machine will reduce the rotational speed of the input member. Large reductions for sharp changes, so the possibility of shift shock is high

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