Abstract: A wet-type friction engaging device includes a first friction member and a second friction member defining a groove formed on a surface of a base facing the first friction member.

Abstract: A transmission used for executing, a process of performing, when a speed at which an accelerator opening is decreased is higher than a predetermined speed, an upshift until a predetermined opening is reached, and fixing a speed ratio, a process of performing, when the speed is equal to or lower than the predetermined speed and a turbine rotation speed is higher than a predetermined rotation speed, the upshift until the predetermined opening is reached, and performing, when the accelerator opening is smaller than the predetermined opening, the upshift so as to fix the speed ratio, and a process of performing, when the speed is equal to or lower than the predetermined speed and the turbine rotation speed is equal to or lower than the predetermined rotation speed, the upshift until the predetermined opening is reached, and performing, when the accelerator opening is smaller than the predetermined opening, the upshift.

Abstract: A valve arrangement structure of a control valve unit includes a control valve body to which oil is supplied from a main pump. The valve arrangement structure includes a pressure regulator valve that is arranged in the control valve body and regulates a pressure of discharged oil from the main pump to a line pressure, a pressure control valve that is arranged in the control valve body and regulates the pressure of the oil to a required pressure with the line pressure as a source pressure, and a first oil passage that is provided in the control valve body and connects the main pump and the pressure regulator valve. The pressure control valve is arranged on a second oil passage branched from the first oil passage.

Abstract: A power transmission device, includes a motor; a gear mechanism connected downstream of the motor; a pump that sucks oil through a pump inlet; and a box that accommodates the motor and the gear mechanism. The pump inlet is provided on an inner wall of the box.

Abstract: An oil pressure supply device includes: a first oil pump configured to be operated by a traveling drive source of a vehicle; a second oil pump configured to be operated by a motor different from the traveling drive source and to be switched between an operation and a stop according to a traveling condition of the vehicle; a pressure regulating circuit configured to regulate an oil pressure generated by the first oil pump and the second oil pump and supply the regulated oil pressure to an oil chamber; an oil passage configured to connect the second oil pump with an oil source; and a check valve provided in the oil passage.

Abstract: A high surface-pressure resistant component includes a steel having a composition containing, in mass %, 0.17-0.23% of C, 0.80-1.00% of Si, 0.65-1.00% of Mn, 0.030% or less of P, 0.030% or less of S, 0.01-1.00% of Cu, 0.01-3.00% of Ni, and 0.80-1.00% of Cr, with the remainder being Fe and unavoidable impurities, in which the surface layer C concentration of a carburized and quenched layer is 0.70-0.80% in mass %.

Abstract: A transmission comprising: a primary pulley; a secondary pulley; a transmission member wound around the primary pulley and the secondary pulley; an oil pump configured to supply oil; a hydraulic control circuit configured to adjust a pressure of the oil supplied from the oil pump to a line pressure which is a source pressure of a primary pulley pressure supplied to the primary pulley and a secondary pulley pressure supplied to the secondary pulley; a line pressure detection unit configured to detect the line pressure; and a controller configured to control the hydraulic control circuit, wherein the controller is configured to select, as a target pulley pressure, a higher one of a target value of the primary pulley pressure and a target value of the secondary pulley pressure, variably set, according to an oil temperature, a target differential pressure including a detection variation of the line pressure detection unit that varies according to the oil temperature, set a target line pressure which is a target v

Abstract: A unit includes a housing configured to accommodate a gear connected to a motor, and a cover having a portion sandwiched between the gear and the motor, wherein a catch guide is provided in the housing, the catch guide has an opening that opens toward the gear, and the catch guide has a portion that overlaps a radial side surface of the cover when viewed in a radial direction.

Abstract: A hydraulic actuation device includes a case; an oil passage provided in the case; and a support member provided in the case and configured to support a supported member. The oil passage includes an opening portion that allows the oil passage to communicate with a space inside the case, the support member is inserted into the opening portion, and a communication between the oil passage and the space inside the case is blocked by the support member.

Abstract: A continuously variable transmission includes: a first pulley and a second pulley each including a fixed pulley and a movable pulley; and an endless member wound around the first pulley and the second pulley, wherein the continuously variable transmission continuously changes a speed ratio by controlling a thrust of the movable pulley with a hydraulic pressure, the thrust of the movable pulley is made smaller as a rotation speed of the first pulley decreases, and when the rotation speed of the first pulley is lower than a predetermined rotation speed, the thrust of the movable pulley in a case where the speed ratio is on a Low side of the predetermined speed ratio is not made smaller than the thrust of the movable pulley in a case where the speed ratio is on a High side of the predetermined speed ratio.

Abstract: A transmission used for executing, a process of performing, when a speed at which an accelerator opening is decreased is higher than a predetermined speed, an upshift until a predetermined opening is reached, and fixing a speed ratio, a process of performing, when the speed is equal to or lower than the predetermined speed and a turbine rotation speed is higher than a predetermined rotation speed, the upshift until the predetermined opening is reached, and performing, when the accelerator opening is smaller than the predetermined opening, the upshift so as to fix the speed ratio, and a process of performing, when the speed is equal to or lower than the predetermined speed and the turbine rotation speed is equal to or lower than the predetermined rotation speed, the upshift until the predetermined opening is reached, and performing, when the accelerator opening is smaller than the predetermined opening, the upshift.

Abstract: A strainer has an inlet for oil; a filter through which the oil that has flowed in from the inlet passes from inside to outside; a first supply port for supplying, to a first oil pump, the oil that has passed through the filter; a second supply port for supplying, to an intermittently driven second oil pump, the oil that has passed through the filter. The second supply port is located more upward than the first supply port; and the filter has a region located below the second supply port.

Abstract: A control device and method controls a vehicle having an internal combustion engine connected to an automatic transmission via a torque converter with a lockup device. The torque of the internal combustion engine is limited the by a torque limit value based on a speed difference between an input rotational speed and an output rotational speed of the torque converter during acceleration in a non-lockup state. The torque-limiting of the internal combustion engine is prohibited torque-limiting upon a prescribed condition being met. The prescribed condition is met by a heating request, during hill climbing/towing, during travel at high vehicle speeds, when the accelerator pedal opening angle exceeds or is equal to a prescribed opening angle, when the torque limit value is greater than a target torque, in a range other than a D range, or in a mode other than normal mode.

Abstract: An automatic transmission, in which when starting with an accelerator pedal opening less than a predetermined opening, the automatic transmission is set to a first speed ratio, and when starting with the accelerator pedal opening equal to or greater than the predetermined opening, the automatic transmission is set to a second speed ratio lower than the first speed ratio.

Abstract: A continuously variable transmission includes a cylinder member fixed to the fix pulley, and including a cylinder cylindrical portion radially inside a pulley cylindrical portion of the slide pulley, the cylinder cylindrical portion including a groove which is formed on an outer circumference of the cylinder cylindrical portion, and which extends in an axial direction, the groove including a first groove portion which functions as a sensed portion of the rotation speed sensor, and a second groove portion which is other than the first groove portion, and wherein the continuously variable transmission includes a plunger located radially inside the pulley cylindrical portion; the cylinder cylindrical portion includes an abutment portion abutted on the plunger; and the thickness decreasing portion is not formed in the abutment portion.

Abstract: A unit includes a housing configured to accommodate a planetary gear mechanism, wherein the housing includes a flow path through which a coolant flows, the planetary gear mechanism includes a stepped pinion gear, the stepped pinion gear includes a small pinion and a large pinion, and the flow path has a portion that overlaps the large pinion when viewed in a radial direction.

Abstract: A unit includes a heat exchanger; a motor case configured to accommodate a motor; and an inverter case configured to accommodate an inverter, wherein the inverter case has a portion that overlaps the heat exchanger and the motor case when viewed in a predetermined direction.

Abstract: A power transmission device, includes a motor; a gear mechanism connected downstream of the motor; a pump that sucks oil through a pump inlet; and a box that includes a first chamber accommodating the gear mechanism and a second chamber provided with the pump inlet.

Abstract: Provided is a unit including: a housing configured to accommodate a differential gear mechanism, in which the housing has a flow path through which a coolant flows, the flow path has a portion that overlaps the differential gear mechanism when viewed in a radial direction, and the flow path has a portion that is positioned above a horizontal plane passing through an axis of an output shaft of the differential gear mechanism and orthogonal to a gravity direction.

Abstract: An apparatus includes a case including a heat exchange unit; an inflow port through which a fluid flows into the heat exchange unit; and a discharge port through which the fluid is discharged from the heat exchange unit. In the case, the inflow port and the discharge port are opened in a facing surface facing a component to which the apparatus is assembled, the inflow port is disposed to face a fluid outlet of the component, and a partition wall that separates an inflow port side and a discharge port side is provided on the facing surface.