Abstract: A hydraulic control device includes an oil pump for generating a hydraulic pressure by being rotated by power of a driving force source, a driving force source stopping unit that stops rotation of the driving force source when a predetermined condition holds, and a cut-off unit that cuts off transmission of the power from the driving force source to the oil pump when the driving force source rotates in a reverse direction as the rotation of the driving force source is stopped by the driving force source stopping unit.

Abstract: A control device for continuously variable transmission is composed of a continuously variable transmission mechanism and friction engagement elements, and includes a control unit for decreasing, during a coast stop control to stop a driving power source in a traveling state of a vehicle, a transmission torque capacity transmittable by the friction engagement elements to fall under a belt capacity being torque transmittable by a belt using a holding force of pulleys.

Abstract: A vehicle control device for controlling a vehicle includes a drive source control unit adapted to output a command for automatically stopping a drive source when a first predetermined condition is satisfied and output a command for restarting the drive source when a second predetermined condition is not satisfied after the command for automatically stopping the drive source is output, a drive source restart determination unit adapted to determine that the drive source has restarted when a third predetermined condition is satisfied after the command for restarting the drive source is output, and a restart determination prohibition unit adapted to prohibit a restart determination by the drive source restart determination unit at least until the third predetermined condition is no longer satisfied when the third predetermined condition is satisfied and the command for restarting the drive source is output.

Abstract: An oil pump apparatus for supplying an oil to a vehicular transmission, includes a pump to suck the oil from an oil reservoir through an inlet port into a pumping chamber, and an intake circuit to convey the oil sucked from the oil reservoir to the inlet port. The intake circuit includes a proximal segment, an intermediate segment and a distal segment. The proximal segment extends from the inlet port, to the intermediate segment. The intermediate segment extends upwards from the proximal segment. The distal segment extends downwards from a first connecting end portion connected with the intermediate segment to a end portion formed with an suction opening to suck the oil from the oil reservoir into the intake circuit.

Abstract: In a transmission comprising a driving force source, an oil pressure source that generates oil pressure lifting a driving force from the driving force source, a first power transmission unit having a first mechanical biasing mechanism, and a second power transmission unit having a second mechanical biasing mechanism, opening/closing unit is provided in an oil passage through which the oil pressure is supplied to the second power transmission unit in order to close the oil passage until the oil pressure supplied to the first power transmission unit reaches or exceeds a predetermined value.

Abstract: A coast stop vehicle for stopping a drive source during vehicle running includes a power transmission means arranged between the drive source and drive wheels, a coast stop control means for executing a coast stop control to stop the drive source when a coast stop condition for stopping the drive source holds during the vehicle running, an electrical oil pump for supplying oil to the power transmission means during the coast stop control, a slip detection means for detecting a slip in the power transmission means during the coast stop control, and an electrical oil pump control means for causing the electrical oil pump to discharge a second discharge pressure higher than a first discharge pressure set before the slip in the power transmission means occurs when the slip occurs in the power transmission means during the coast stop control.

Abstract: A hydraulic control circuit includes an oil pump for generating a hydraulic pressure by being rotated by power of a driving force source, a line pressure oil passage in which at least a line pressure generated by adjusting the hydraulic pressure generated by the oil pump is supplied, a driving force source stopping unit that stops the rotation of the driving force source, and a hydraulic pressure reduction suppressing unit that is provided in the line pressure oil passage and suppresses a reduction of the line pressure accompanying reverse rotation of the driving force source when the rotation of the driving force source is stopped by the driving force source stopping unit.

Abstract: A coast stop vehicle for automatically stopping a drive source when a predetermined condition holds during the travel of the vehicle includes a drive source control unit adapted to control the automatic stop and the restart of the drive source, a transmission mechanism provided between the drive source and drive wheels, and a transmission control unit adapted to control a speed ratio of the transmission mechanism. When the drive source is restarted, the transmission control unit is adapted to control the transmission mechanism to a speed ratio higher than a predetermined speed ratio in response to an input shift request to the predetermined speed ratio, and the drive source control unit is adapted to restart the drive source in a state where the speed ratio of the transmission mechanism is higher than the predetermined speed ratio.

Abstract: The present invention is provided with a hydraulic control circuit including a hydraulic pump driven by a driving power source in order to supply an oil pressure to a hydraulic circuit, a hydraulic auxiliary unit for supplying an accumulated oil pressure to the hydraulic circuit, and a control valve for supplying at least one of oil pressures of the hydraulic pump and the hydraulic auxiliary unit to pulleys, and a control unit for executing a coast stop control to stop the driving power source while traveling and controlling, when an increase of torque inputted to the continuously variable transmission is detected or predicted during the coast stop control, the control valve so as to supply an oil pressure of the hydraulic auxiliary unit to the pulleys.

Abstract: A coast stop vehicle which stops an engine during the travel of the vehicle is provided with a variator including a pair of pulleys and a belt mounted between the pulleys and capable of continuously changing a speed ratio. A controller judges whether or not coast stop conditions to stop the engine during the travel of the vehicle hold, stops the engine when the coast stop conditions hold, and prevents the speed ratio from being upshifted to a higher side than a speed ratio at the time of starting the coast stop control during the coast stop control.

Abstract: A vehicle control device for controlling a vehicle with an oil pump to be driven by rotation generated by a drive source and transmitted thereto and a continuously variable transmission including a power transmission member mounted between two pulleys includes coast stop control means configured to execute a coast stop control in which the drive source is stopped during vehicle running when a predetermined condition holds, and hydraulic pressure control means configured to execute a pulley pressure control in which a hydraulic pressure supplied to the pulley is increased such that frictional heat generated between the pulley and the power transmission member does not exceed upper limit frictional heat, below which the pulley or the power transmission member is not degraded, when the coast stop control is stopped, the drive source is restarted and the hydraulic pressure is supplied from the oil pump.

Abstract: A coast stop vehicle includes power transmission means provided between a drive source and drive wheels, drive source automatic stop means configured to stop the drive source during vehicle running when a value indicating a driving state of the vehicle is in a drive source stop permission region, slip determination means configured to determine whether or not there is slip in the power transmission means while the drive source is stopped by the drive source automatic stop means, and a changer means configured to narrow the drive source stop permission region when the occurrence of the slip in the power transmission means was determined by the slip determination means.

Abstract: A coast stop vehicle, includes an engine, a transmission arranged between the engine and drive wheels and having a plurality of gear positions, a coast stop starting unit which automatically stops the engine when a coast stop start condition holds during travel, a coast stop releasing unit which automatically starts the engine when a coast stop release condition holds during a coast stop, and a downshifting unit which starts engagement of a frictional engagement element, which realizes a lower gear position than the one when the coast stop release condition holds, before complete explosion of the engine and causes a downshift of the transmission when the coast stop release condition holds.

Abstract: A transmission controller operates an electrical oil pump in a steady mode, in which an operating load of the electrical oil pump is set at a steady load, during an idle stop, but operates the electrical oil pump in a high-pressure mode, in which the operating load of the electrical oil pump is higher than the steady load, for a predetermined period when an engine stops rotating.

Abstract: A control device controls a transmission mechanism which includes a first clutch to be engaged at startup and a second clutch, and is interlocked when hydraulic pressure is supplied to the first and second clutches and when the first and second clutches are completely engaged. The control device includes a hydraulic pressure control unit controlling hydraulic pressure supplied to the transmission mechanism so that the first clutch is set in a completely engaged state and the second clutch is set in a slip interlock state where the second clutch is not completely engaged in the case of a return from an idle stop control in which an engine is automatically stopped. The hydraulic pressure control unit starts reducing hydraulic pressure supplied to the second clutch when an increased amount of an engine rotation speed per unit time becomes smaller than a predetermined value.

Abstract: A controller actuates an electrical oil pump when an idle stop condition or a coast stop condition holds and causes the actuation of the electrical oil pump to continue without being stopped until an accelerated state of a vehicle or a driver's intention to accelerate is determined even if the idle stop condition and the coast stop condition no longer holds thereafter.

Abstract: A vehicle control device for controlling a vehicle with an oil pump to be driven by rotation generated by a drive source and transmitted thereto and a continuously variable transmission including a power transmission member mounted between two pulleys includes coast stop control means configured to execute a coast stop control in which the drive source is stopped during vehicle running when a predetermined condition holds, and hydraulic pressure control means configured to execute a pulley pressure control in which a hydraulic pressure supplied to the pulley is increased such that frictional heat generated between the pulley and the power transmission member does not exceed upper limit frictional heat, below which the pulley or the power transmission member is not degraded, when the coast stop control is stopped, the drive source is restarted and the hydraulic pressure is supplied from the oil pump.

Abstract: A coast stop vehicle includes power transmission means provided between a drive source and drive wheels, drive source automatic stop means configured to stop the drive source during vehicle running when a value indicating a driving state of the vehicle is in a drive source stop permission region, slip determination means configured to determine whether or not there is slip in the power transmission means while the drive source is stopped by the drive source automatic stop means, and a changer means configured to narrow the drive source stop permission region when the occurrence of the slip in the power transmission means was determined by the slip determination means.

Abstract: A coast stop vehicle includes a variator which continuously changes a speed ratio by changing a winding diameter of a belt mounted on pulleys, a sub-transmission mechanism connected in series with the variator and shifting discrete gear positions by changing engaged states of a plurality of frictional engagement elements, and a coast stop unit which stops the rotation of the drive power source and releases the engaged frictional engagement element when the coast stop condition holds during travel. The coast stop unit includes a coast stop prohibiting unit which prohibits the coast stop regardless of the coast stop condition when it is predicted at the time of determining whether or not the coast stop condition holds that a belt tightening force of the pulley falls below an engaging force of the frictional engagement element in the engaged state by the execution of the coast stop.

Abstract: A controller of a vehicle, provided with a coast stop control unit which automatically stops an engine during the travel of a vehicle if coast stop conditions are met during the travel of the vehicle, and the coast stop control unit automatically stops the engine at least if a change amount of acceleration of the vehicle caused by the automatic stop of the engine is predetermined acceleration or less.