Abstract: Ground wires are shared between a drive-side pulley solenoid valve and a driven-side pulley solenoid valve. Therefore, when a disconnection or short circuit occurs in the shared portion, a drive-side pulley and a driven-side pulley show substantially the same behavior. As a result, changes in the speed ratio ?cvt of a continuously variable transmission are suppressed and changes in vehicle behavior are also suppressed. Therefore, it is possible to suppress the degradation of drivability during the failure of the solenoid valves involved in power transmission.

Abstract: A vehicle transmission having a valve body disposed adjacently to and in parallel with a side cover covering a front or rear side or a side surface of a transmission case in a vehicle width direction in a vehicle-mounted state, the side cover connected to the transmission case, in which an electromagnetic valve is included on the side cover side of the valve body, when viewed in a direction horizontal and parallel to mating surfaces of the transmission case and the side cover, a strainer for removing a foreign material in a hydraulic oil is disposed between the side cover and the valve body to overlap with at least a portion of the electromagnetic valve, and the strainer has an inflow portion for allowing the hydraulic oil to flow in disposed vertically above an oil surface.

Abstract: A check valve provided makes it possible to operate a vane pump smoothly even at the start of the vane pump by maintaining an oil pressure in backpressure oil passages inside the vane pump while the vane pump is stopped. The check valve opens at the point in time when an oil pressure control device, to which a working fluid is supplied from the vane pump, has been filled with the working fluid and the oil pressure in discharge oil passages communicating with the oil pressure control device has risen and exceeded the oil pressure in the backpressure oil passages. Thus, the check valve is prevented from opening and closing repeatedly, so that the durability of the check valve is improved.

Abstract: A vehicle hydraulic device is provided with an electric motor-driven oil pump and a shuttle valve, so that a vane pump operates smoothly, even at the start, with a backpressure applied from the electric motor-driven oil pump to the vanes. Even when the oil pressure of a working fluid discharged from the vane pump exceeds the backpressure inside vane housing grooves, the working fluid flows from a vane pump discharge oil passage to a backpressure oil passage, so that the vanes are not pushed into the housing grooves. Thus, it is possible to reduce the fluctuations in discharge amount of the vane pump due to fluctuations in oil pressure of the vane pump discharge oil passage during operation of the vane pump.

Abstract: A vehicle control device includes an engine, a starter for starting the engine, a transmission for transmitting power of the engine to a driving wheel, an oil pump for supplying hydraulic pressure to the transmission according to the power of the engine, an accumulator for accumulating the hydraulic pressure ejected from the oil pump, and an electromagnetic on-off valve for controlling the hydraulic pressure accumulated in the accumulator. When the engine is restarted after the engine has stopped, an ECU of the vehicle control device opens the electromagnetic on-off valve at the time a line pressure has become equal to or higher than a predetermined hydraulic pressure after the start of the starter, and supplies the hydraulic pressure accumulated in the accumulator to respective portions of the transmission.

Abstract: A hydraulic control device has: a modulator valve using oil pressure from a hydraulic source for adjusting a modulator pressure; driving and driven-side hydraulic actuator control valves controlling hydraulic oil from the source to driving and driven-side hydraulic actuators; a driving-side control oil pressure adjusting electromagnetic valve using the modulator pressure for outputting a control oil pressure controlling the driving-side control valve; and a driven-side control oil pressure adjusting electromagnetic valve for outputting a control oil pressure controlling the driven-side control valve, the hydraulic control device including a failsafe valve switched from a normal to a failure position based on a failure disabling electric control for the driving-side and driven-side electromagnetic valves, the modulator valve making the modulator pressure lower than a value at the normal position based on an output switching pressure generated due to switching the failsafe valve from the normal to the failure p

Abstract: A hydraulic control system for vehicle includes: an engine; an oil pump driven by the engine; a clutch device brought into engagement to enable power transmission between the engine and drive wheels by delivering a pressurized fluid thereto, and brought into disengagement to interrupt the power transmission between the engine and the drive wheels by discharging the fluid therefrom; and an accumulator storing the fluid delivered to the clutch device. The hydraulic control system is configured to control the hydraulic pressure applied to the clutch device, to stop the engine while bringing the clutch device into disengagement upon satisfaction of a predetermined stopping condition, and to restart the engine while bringing the clutch device into engagement upon satisfaction of a predetermined restarting condition. In the hydraulic control system, a hydraulic circuit increases flow rate of the fluid flowing between the accumulator and the clutch device when the engine is stopped.

Abstract: A hydraulic control device includes an electric pump configured to supply oil to a belt-type continuously variable transmission mechanism of a power transmission device through a hydraulic path based on driving of a motor, and an accumulator configured to accumulate oil inside by using the oil supplied by the electric pump and supplies the oil to a control system by discharging the accumulated oil through the hydraulic path. According to such a configuration, an increase in the sizes of the electric pump and the accumulator used for hydraulic control at the time of executing an idling stop function can be suppressed.

Abstract: A vehicle control device includes an engine that is a power source of a vehicle, a transmission configured to connect the engine to a drive wheel of the vehicle, and a clutch configured to connect or block transmission of power between the engine and the drive wheel through the transmission. The vehicle control device is capable of executing predetermined control to allow the vehicle to travel while stopping supplying fuel to the engine and releasing the clutch that has been engaged, during travel of the vehicle, and the vehicle control device downshifts the transmission at the time the clutch is released in the predetermined control. It is possible to shift the transmission into a lowest-speed side gear ratio by the downshift.

Abstract: Power system including differential-mechanism, clutch-mechanism, power-mechanism and dog-clutch disposed between an input rotary member to receive drive-force from a drive power source and output rotary-member to transmit drive-force to drive-wheels, the differential-mechanism including an input rotary element, output rotary element and reaction rotary element; the clutch-mechanism connecting two rotary elements of the input, output and reaction rotary elements of the differential-mechanism, to each other, the power-mechanism having predetermined gear ratio, and dog-clutch selectively placing a power path between the output rotary element and output rotary-member, in power transmitting state and power cutoff state; transmitting drive-force to drive-wheels while the clutch-mechanisms and dog-clutch are placed in engaged states.

Abstract: A hydraulic control device includes an accumulator configured to accumulate oil supplied by a mechanical pump and supply the accumulated oil to a C1 control system (clutch) by discharging the accumulated oil; a first oil passage connected to the hydraulic route (clutch oil passage) on an upstream side of a SLC linear solenoid; a second oil passage connected to the hydraulic route on a downstream side of the manual valve; and connection control unit (a switching valve and a pressure accumulation control valve) configured to control the connection between the accumulator and the hydraulic route so that the accumulator is in communication with one of the first oil passage and the second oil passage.

Abstract: Power system including differential-mechanism, clutch-mechanism, power-mechanism and dog-clutch disposed between an input rotary member to receive drive-force from a drive power source and output rotary-member to transmit drive-force to drive-wheels, the differential-mechanism including an input rotary element, output rotary element and reaction rotary element; the clutch-mechanism connecting two rotary elements of the input, output and reaction rotary elements of the differential-mechanism, to each other, the power-mechanism having predetermined gear ratio, and dog-clutch selectively placing a power path between the output rotary element and output rotary-member, in power transmitting state and power cutoff state; transmitting drive-force to drive-wheels while the clutch-mechanisms and dog-clutch are placed in engaged states.

Abstract: A hydraulic control system for vehicle includes: an engine; an oil pump driven by the engine; a clutch device brought into engagement to enable power transmission between the engine and drive wheels by delivering a pressurized fluid thereto, and brought into disengagement to interrupt the power transmission between the engine and the drive wheels by discharging the fluid therefrom; and an accumulator storing the fluid delivered to the clutch device. The hydraulic control system is configured to control the hydraulic pressure applied to the clutch device, to stop the engine while bringing the clutch device into disengagement upon satisfaction of a predetermined stopping condition, and to restart the engine while bringing the clutch device into engagement upon satisfaction of a predetermined restarting condition. In the hydraulic control system, a hydraulic circuit increases flow rate of the fluid flowing between the accumulator and the clutch device when the engine is stopped.

Abstract: A belt-driven continuously variable transmission having a downsized torque cam assembly for creating forward thrust to push a movable sheave toward a fixed sheave. The belt-driven continuously variable transmission is adapted to output a torque while changing a speed ratio continuously by altering an effective diameter position of a driving belt.

Abstract: A hydraulic pressure control device includes an accumulator configured to accumulate oil supplied by a mechanical pump and discharge the accumulated oil to a control system; a first oil path connected to a hydraulic path (clutch oil path) at an upstream side than an SLC linear solenoid; a second oil path connected to the hydraulic path (clutch oil path) at a downstream side of a manual valve; a connection control unit (switching valve, accumulation control valve) configured to control the connection between the accumulator and the hydraulic path to communicate the accumulator to either one of the first oil path and the second oil path; and a back pressure control oil path configured to supply the oil supplied by the mechanical pump to the back pressure side of the accumulator.

Abstract: A vehicle control device includes an engine, a starter for starting the engine, a transmission for transmitting power of the engine to a driving wheel, an oil pump for supplying hydraulic pressure to the transmission according to the power of the engine, an accumulator for accumulating the hydraulic pressure ejected from the oil pump, and an electromagnetic on-off valve for controlling the hydraulic pressure accumulated in the accumulator. When the engine is restarted after the engine has stopped, an ECU of the vehicle control device opens the electromagnetic on-off valve at the time a line pressure has become equal to or higher than a predetermined hydraulic pressure after the start of the starter, and supplies the hydraulic pressure accumulated in the accumulator to respective portions of the transmission.

Abstract: A hydraulic control device includes an electric pump configured to supply oil to a belt-type continuously variable transmission mechanism of a power transmission device through a hydraulic path based on driving of a motor, and an accumulator configured to accumulate oil inside by using the oil supplied by the electric pump and supplies the oil to a control system by discharging the accumulated oil through the hydraulic path. According to such a configuration, an increase in the sizes of the electric pump and the accumulator used for hydraulic control at the time of executing an idling stop function can be suppressed.

Abstract: A hydraulic pressure control device includes an accumulator configured to accumulate oil supplied by a mechanical pump and discharge the accumulated oil to a control system; a first oil path connected to a hydraulic path (clutch oil path) at an upstream side than an SLC linear solenoid; a second oil path connected to the hydraulic path (clutch oil path) at a downstream side of a manual valve; a connection control unit (switching valve, accumulation control valve) configured to control the connection between the accumulator and the hydraulic path to communicate the accumulator to either one of the first oil path and the second oil path; and a back pressure control oil path configured to supply the oil supplied by the mechanical pump to the back pressure side of the accumulator.

Abstract: A hydraulic control device includes an accumulator configured to accumulate oil supplied by a mechanical pump and supply the accumulated oil to a C1 control system (clutch) by discharging the accumulated oil; a first oil passage connected to the hydraulic route (clutch oil passage) on an upstream side of a SLC linear solenoid; a second oil passage connected to the hydraulic route on a downstream side of the manual valve; and connection control unit (a switching valve and a pressure accumulation control valve) configured to control the connection between the accumulator and the hydraulic route so that the accumulator is in communication with one of the first oil passage and the second oil passage.

Abstract: This lubricating device 1 is equipped with an oil pan 2 that stores therein lubricating oil, a micro bubble generator 4 that mixes the lubricating oil with air to produce micro bubbles and supplies the lubricating oil in the oil pan 2 with the micro bubbles, and an oil pump 3 that pressurizes the lubricating oil in the oil pan 2 to supply the micro bubble generator 4 therewith. Further, in this lubricating device 1, the micro bubble generator 4 has an air inlet portion 431 disposed inside the oil pan 2 at a predetermined position with respect to an oil surface height (oil level) of the lubricating oil in the oil pan 2.