Abstract: A control apparatus for a vehicle that decreases shift shock generated by full engagement of a clutch at completion of an inertia phase. The apparatus includes a driving source, a step automatic transmission arranged to attain a predetermined shift stage by engagement of frictional engagement elements, a rotational speed control to control the driving source so that an input rotational speed of the transmission becomes a predetermined target value during the inertia phase, a torque control to control the driving source so that the input torque of the transmission becomes a predetermined target value during the non-inertia phase, and a torque correction to correct the engagement torque of the engagement element or the input torque of the transmission so that the engagement torque of the engagement element before completion of the inertia phase is substantially identical to the input torque of the transmission after completion of the inertia phase.

Abstract: A control apparatus for a vehicle that decreases shift shock generated by full engagement of a clutch at completion of an inertia phase. The apparatus includes a driving source, a step automatic transmission arranged to attain a predetermined shift stage by engagement of frictional engagement elements, a rotational speed control to control the driving source so that an input rotational speed of the transmission becomes a predetermined target value during the inertia phase, a torque control to control the driving source so that the input torque of the transmission becomes a predetermined target value during the non-inertia phase, and a torque correction to correct the engagement torque of the engagement element or the input torque of the transmission so that the engagement torque of the engagement element before completion of the inertia phase is substantially identical to the input torque of the transmission after completion of the inertia phase.

Abstract: A control device of an automatic transmission of a motor vehicle includes lock-up control means for controlling a coupling state between input and output elements of a torque converter clutch. This control device is used with an engine, which includes an electronic throttle control device that electrically controls a throttle valve, accelerator position detecting means for detecting an accelerator pedal position, a cruise control device that controls an opening of the throttle valve to maintain a vehicle speed at a predetermined vehicle speed, for enabling constant-speed running of the vehicle, and target throttle opening setting means for calculating a pseudo accelerator pedal position, and setting a target throttle opening based on the pseudo accelerator pedal position, when the cruise control device is in operation.

Abstract: A shift control apparatus for an automatic transmission of a vehicle wherein a plurality of speed ratios are achieved by electronically controlling individual hydraulic pressures supplied to a plurality of frictional engaging elements to selectively engage these frictional engaging elements, which includes speed ratio select members for changing over the speed ratio of the automatic transmission from a neutral position to a running position, operation condition determination members for determining operation condition of the vehicle, an electromagnetic valve for controlling hydraulic pressure supplied to a first frictional engaging element to achieve a first speed; and electromagnetic valve control members for controlling operation of the electromagnetic valve so that when the speed ratio select members is determined by the operation condition determination means to be slowly manipulated, a supply time of a maximum hydraulic pressure to the first frictional engaging element is extended by a predetermined time

Abstract: Hydraulic pressure supplied to the frictional engaging element of an automotive transmission is corrected to a higher value in the event that the engine is started after a long standstill condition and the first speed ratio is selected, thereby reducing speed-shift shocks when the engine is started from a standstill condition and the first speed ratio is selected.

Abstract: In an automatic transmission for a vehicle having at least one frictional engaging element and an electromagnetic valve to control hydraulic pressure supplied to the frictional engaging element and achieving a plurality of speed ratios including a predetermined speed ratio achieved by engaging the frictional engaging element, a shift control apparatus includes retardation rate detection means for detecting retardation rate of the vehicle and electromagnetic valve control means for controlling the electromagnetic valve according to the value detected by the retardation rate detection means, and hydraulic pressure supplied to the frictional engaging element is corrected by the electromagnetic valve through electromagnetic valve control means according to the retardation rate of the vehicle detected by the retardation rate detection means, thereby reducing speed-shift shocks during a down-shift in association with retardation of the vehicle.