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 vehicle control device for controlling a vehicle including a first power transmission mechanism arranged between a drive source and a drive wheel, and a second power transmission mechanism which is arranged in series with the first power transmission mechanism and which changes a speed ratio between an input shaft and an output shaft, includes slip detection means configured to detect whether or not a slip occurs in the first power transmission mechanism, and shift means configured to reduce the slip by shifting the second power transmission mechanism in a case where occurrence of the slip is detected by the slip detection means.

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 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.

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: An idle stop vehicle performs an idle stop to automatically stop an engine during a stop of the vehicle. The vehicle includes an idle stop condition determination unit for determining whether or not an idle stop condition holds, and an engine control unit for performing the idle stop when the idle stop condition holds before a stoppage time exceeds a specified time and prohibiting the idle stop after the stoppage time exceeds the specified time without the idle stop condition holding.

Abstract: A time required until the friction element is completely engaged is delayed when a switch from a non-driving position to a driving position is detected or when the engine automatic stop condition no longer holds until the differential rotation of the friction element disappears after the engine automatic stop condition holds as compared with the case where the switch from the non-driving position to the driving position is detected or the engine automatic stop condition no longer holds after the differential rotation of the friction element disappears.

Abstract: When the temperature of oil supplied to an electrical oil pump is detected and the oil temperature is lower or higher than normal oil temperature, a gradient threshold value smaller than that at normal oil temperature is set, a gradient of a road surface on which a vehicle is stopped is detected, and an idle stop is prohibited when the detected gradient of the road surface is larger than the set gradient threshold value.

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 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: An oil pressure control device for a transmission engages or disengages a frictional engagement element of the transmission by controlling an oil pressure supplied from a mechanical oil pump driven by a power source for driving a vehicle and an electric oil pump driven by an electric motor, and includes: an air entering determining unit which determines whether or not air enters the electric oil pump; and an air discharging unit which, when an ignition switch of the power source is switched from an ON state to an OFF state after the air entering determining unit has determined that air enters the electric oil pump, drives the electric oil pump such that the air entering the electric oil pump is discharged from the electric oil pump together with an oil.

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: When the temperature of oil supplied to an electrical oil pump is detected and the oil temperature is lower or higher than normal oil temperature, a gradient threshold value smaller than that at normal oil temperature is set, a gradient of a road surface on which a vehicle is stopped is detected, and an idle stop is prohibited when the detected gradient of the road surface is larger than the set gradient threshold value.

Abstract: In the case of a return from an idle stop control in which an engine is automatically stopped, a hydraulic pressure is so supplied that a low brake is set in a completely engaged state and a high clutch is set in a slip interlock state where the high clutch is not completely engaged.

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.

Abstract: A time required until the friction element is completely engaged is delayed when a switch from a non-driving position to a driving position is detected or when the engine automatic stop condition no longer holds until the differential rotation of the friction element disappears after the engine automatic stop condition holds as compared with the case where the switch from the non-driving position to the driving position is detected or the engine automatic stop condition no longer holds after the differential rotation of the friction element disappears.

Abstract: An idle stop vehicle performs an idle stop to automatically stop an engine during a stop of the vehicle. The vehicle includes an idle stop condition determination unit for determining whether or not an idle stop condition holds, and an engine control unit for performing the idle stop when the idle stop condition holds before a stoppage time exceeds a specified time and prohibiting the idle stop after the stoppage time exceeds the specified time without the idle stop condition holding.

Abstract: An oil pressure control device for a transmission engages or disengages a frictional engagement element of the transmission by controlling an oil pressure supplied from a mechanical oil pump driven by a power source for driving a vehicle and an electric oil pump driven by an electric motor, and includes: an air entering determining unit which determines whether or not air enters the electric oil pump; and an air discharging unit which, when an ignition switch of the power source is switched from an ON state to an OFF state after the air entering determining unit has determined that air enters the electric oil pump, drives the electric oil pump such that the air entering the electric oil pump is discharged from the electric oil pump together with an oil.

Abstract: A hydraulic pressure control device is provided that that controls hydraulic pressure of a clutch supplying torque to a continuously variable transmission while the vehicle is stopped and in a running range. The hydraulic pressure control device has an control section that estimates a clutch engagement hydraulic pressure for changing the clutch from an engaged state to a disengaged state based the hydraulic fluid pressure acting on the clutch during the stopping of the rotational movement of a primary pulley of the continuously variable transmission, and then controls regulation of the hydraulic pressure to the clutch from an engaged state to a disengaged state, when the vehicle is stopped and in the running range, so that the torque from the engine does not rotate a secondary pulley of the continuously variable transmission.

Abstract: When a shift lever is shifted from an N range to a D range and a predetermined learning condition is established, a learning timer tm_pulse up to a point at which a pulse signal is detected by a primary pulley rotation speed sensor is calculated, and when a deviation between the learning timer tm_pulse and a reference correction amount ?P_offset is larger than a predetermined threshold ?t_pulse_dif, a learned correction amount P_offset is updated.