摘要:
When there is a request for a skip downshift that transitionally establishes an intermediate speed position, a surge hydraulic pressure at the start of a torque phase during shift control toward the intermediate speed position is set so as to be lower than a surge hydraulic pressure at the start of a torque phase during shift control toward a required speed position.
摘要:
Provided is a control device of a vehicle capable of providing a tie-up control corresponding to a frictional load of an engagement-side engagement device during a torque phase in a drive upshift. In the presetting of a delay time tdel in a delay control of delaying the time point of starting the provision of a release-side torque phase control of reducing a release-side clutch torque with respect to the time point of starting the provision of a torque phase control of generating an engagement-side clutch torque during the torque phase in the drive upshift, the delay time tdel is shortened when a release-element shared torque before the start of the torque phase in the drive upshift is high, as compared to when the release-element shared torque is low, and therefore, the drive upshift can be performed with a tie-up corresponding to the frictional load of an engagement element changing in accordance with an input torque Ti that is the basis of the release-element shared torque before the start of the torque phase. Thus, the tie-up control corresponding to the frictional load of the engagement element can be provided during the torque phase in the drive upshift.
摘要:
A control apparatus for a stepped automatic transmission (3) in which one of a plurality of shift speeds is established by selectively engaging a plurality of frictional engagement elements, the stepped automatic transmission (3) mounted on a vehicle, the control apparatus includes: an electronic control unit (5) configured to perform a control of prohibiting a plurality of shift that is transitioning from an upshift speed change to a downshift speed change, for a predetermined period, when a downshift speed change requirement is requested by an occurrence of an accelerator depression operation during an inertia phase of the upshift speed change in a driven state of a vehicle.
摘要:
An object of the present invention is to suppress a reduction in drivability due to a delay in operation of a pressure control solenoid valve supplying a hydraulic pressure to a hydraulic friction engagement device in a vehicle providing a pulsation drive control for the pressure control solenoid valve. An electronic control device 70 includes a pulsation drive control portion 104 providing the pulsation drive control of selectively pulsating a plurality of solenoid valves SL in a predetermined cycle, and a quick-apply control prohibiting portion 108 prohibiting a provision of a quick-apply control using a quick-apply signal Squi for a second predetermined time T2 from the time of termination of the pulsation drive control, and permitting the provision of the quick-apply control after the elapse of the second predetermined time T2, for the solenoid valve SL having undergone the pulsation drive control out of the plurality of solenoid valves SL, and the pulsation drive control portion 104 terminates the pulsation drive control for the solenoid valve SL undergoing the pulsation drive control out of the plurality of solenoid valves SL when a shift request is made.