Vehicle control apparatus

Abstract

A vehicle control device restrains clutch deterioration and can improve operability. The vehicle control apparatus is provided with the following components: a sliding control clutch which has an operation mode of performing rotation speed control on a driving source according to a mode that the driving source side rotation speed of the clutch becomes a rotation speed that is higher than the driving wheel side rotation speed of the clutch for a preset amount; a vehicle stopping state determining device; a torque detecting device; a vehicle stopping transmitting torque capacity correcting device which reduces instruction oil pressure from an initial instruction oil pressure and sets a corrected instruction oil pressure based on the instruction oil pressure in determination release; an inclination switching oil pressure setting device which sets an inclination switching oil pressure based on actual torque change amount in a period between reduction of the instruction oil pressure from the initial instruction oil pressure until termination of the actual torque change; and an instruction oil pressure increasing device which increases the instruction oil pressure from the instruction oil pressure in determination release to the inclination oil pressure with a preset torque generation front semi-inclination generation before the corrected instruction oil pressure is set, and increases the instruction oil pressure with a back semi-inclination which is smaller than the torque generation back semi-inclination that is smaller than the torque generation front semi-inclination after an inclination switching oil pressure is obtained.

Description

technical field [0001] The present invention relates to a control device for a vehicle that performs sliding control of a coupling element between a power source and a drive wheel. Background technique [0002] The technology described in Patent Document 1 is disclosed as a vehicle control device. This gazette discloses a technique of using both the driving forces of the engine and the electric motor to perform an engine use slip mode (hereinafter referred to as WSC running mode) in which the clutch between the electric motor and drive wheels is slipped and started. [0003] Patent Document 1: (Japanese) Unexamined Patent Publication No. 2010-77981 [0004] However, in the WSC running mode, when the driver depresses the brake pedal to stop the vehicle, the clutch slipping state continues, causing heat generation and deterioration of the clutch. Therefore, it is considered to suppress the heat generation of the clutch by reducing the input torque to the clutch. However, if...

AI Technical Summary

Problems solved by technology

However, if the oil pressure supplied to the clutch is too low, the state where the transmission torque capacity of the clutch is substantially zero (corresponding to the generation start point of the transmission torque capacity) may be further released to the release side.

In this state, when the driver releases the brake pedal and depresses the accelerator pedal to start, it will take time until the clutch starts to have a transmission torque capacity, causing delays and shocks at the time of starting, and the drivability of the vehicle will be reduced.

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