Abstract: Provided is a lubricating fluid supply structure of a power transmission device capable of stably supplying a lubricating fluid to a built-in part to which the lubricating fluid is supplied with a high priority. A supply pipe (64a) includes a first main pipe line (L1) connected to a priority part, a second main pipe line (L2) connected to a non-priority part, and an intermediate pipe line (LM) connecting the first main pipe line (L1) and the second main pipe line (L2) to each other. A first height (H1) of a connection part of the first main pipe line (L1) connected to the intermediate pipe line (LM) is lower than a second height (H2) located at the highest position in a flow path bottom surface of the intermediate pipe line (LM).

Abstract: Provided is a lubricating fluid supply structure of a power transmission device capable of stably supplying a lubricating fluid to a built-in part to which the lubricating fluid is supplied with a high priority. A supply pipe (64a) includes a first main pipe line (L1) connected to a priority part, a second main pipe line (L2) connected to a non-priority part, and an intermediate pipe line (LM) connecting the first main pipe line (L1) and the second main pipe line (L2) to each other. A first height (H1) of a connection part of the first main pipe line (L1) connected to the intermediate pipe line (LM) is lower than a second height (H2) located at the highest position in a flow path bottom surface of the intermediate pipe line (LM).

Abstract: A system and method of compensating for torque converter slip in a motor vehicle include measuring rotational speeds of an engine crankshaft and mainshaft, as well as measuring operating temperatures of a fluid associated with the motor vehicle. Engine output torque is adjusted as required by controlling some combination of ignition timing, intake air flow, fuel injection, and accessory load. A system and method for deactivating a torque compensation system retrieves a number of times the torque compensation system has been activated over a set period. If the number exceeds a predetermined number of activations, the torque compensation system is deactivated.

Abstract: A planetary gear has a sun gear having external teeth on an outer peripheral side, a plurality of pinion gears engaged with the sun gear, a carrier supporting the plurality of pinion gears, a circular oil catch plate on an end of the carrier, and a rotation member having a ring gear, on an outer peripheral side of the carrier and the oil catch plate. An engaging element engaged with the rotation member is disposed on an outer periphery of the planetary gear. The oil catch plate includes an open close valve which opens a passage at at least a predetermined rotation number. Lubrication oil supplied to the planetary gear is guided to the engaging element through the passage when the open/close valve is opened. This enables adjusting of the lubrication amount in accordance with a variation occurring in a ratio of a lubrication amount to each part.

Abstract: A planetary gear has a sun gear having external teeth on an outer peripheral side, a plurality of pinion gears engaged with the sun gear, a carrier supporting the plurality of pinion gears, a circular oil catch plate on an end of the carrier, and a rotation member having a ring gear, on an outer peripheral side of the carrier and the oil catch plate. An engaging element engaged with the rotation member is disposed on an outer periphery of the planetary gear. The oil catch plate includes an open close valve which opens a passage at at least a predetermined rotation number. Lubrication oil supplied to the planetary gear is guided to the engaging element through the passage when the open/close valve is opened. This enables adjusting of the lubrication amount in accordance with a variation occurring in a ratio of a lubrication amount to each part.

Abstract: An oil strainer for a vehicle transmission includes a body case, a suction port member, a suction port, and a connection tube. The body case contains a filtering member. The suction port member is separated from the body case. The suction port is provided in the suction port member. The connection tube has flexibility or stretchability and connects the body case to the suction port member. The connection tube has a structure which is bent or which is expanded and contracted to allow the suction port member to move while following a change in an oil surface of oil in a transmission casing of the vehicle transmission so that the suction port is not exposed at the oil surface when a position of the oil surface varies due to lean of a vehicle or acceleration/deceleration applied to the vehicle.

Abstract: A planetary gear has a sun gear having external teeth on an outer peripheral side, a plurality of pinion gears engaged with the sun gear, a carrier supporting the plurality of pinion gears, a circular oil catch plate on an end of the carrier, and a rotation member having a ring gear, on an outer peripheral side of the carrier and the oil catch plate. An engaging element engaged with the rotation member is disposed on an outer periphery of the planetary gear. The oil catch plate includes an open close valve which opens a passage at at least a predetermined rotation number. Lubrication oil supplied to the planetary gear is guided to the engaging element through the passage when the open/close valve is opened. This enables adjusting of the lubrication amount in accordance with a variation occurring in a ratio of a lubrication amount to each part.

Abstract: An automatic transmission includes an input member, a planetary gear set, a plurality of engagement mechanisms, an output member, a shift position detecting unit, an input rotational speed detecting unit, a control unit, and a switching mechanism. When a shift position is changed from a forward drive range to a reverse drive range, the control unit performs a reverse preparation mode in which a rotational speed of an element to be fixed by the switching mechanism is lower than or equal to a predetermined speed by setting an engagement mechanism in one of a connection mode and a fixed mode. Upon performing the reverse preparation mode, the control unit engages the engagement mechanism that connects the element fixed by the switching mechanism to the input member and, thereafter, engages the engagement mechanism that makes the rotational speed of the input member lower than or equal to the predetermined speed.

Abstract: A method of controlling an engine in a motor vehicle includes opening a throttle to an increased angle when conditions for fuel cut cycling are met. More specifically, when cruise control is on, the motor vehicle is moving downhill, and the current speed drops below a target speed, the engine control unit may choose to increase the angle of the throttle while maintaining fuel cut. Under other interrupting events, the engine control unit may choose to resume fueling control or reduce the throttle angle.

Abstract: An automatic transmission includes an input member, a planetary gear set, a plurality of engagement mechanisms, an output member, a shift position detecting unit, an input rotational speed detecting unit, a control unit, and a switching mechanism. When a shift position is changed from a forward drive range to a reverse drive range, the control unit performs a reverse preparation mode in which a rotational speed of an element to be fixed by the switching mechanism is lower than or equal to a predetermined speed by setting an engagement mechanism in one of a connection mode and a fixed mode. Upon performing the reverse preparation mode, the control unit engages the engagement mechanism that connects the element fixed by the switching mechanism to the input member and, thereafter, engages the engagement mechanism that makes the rotational speed of the input member lower than or equal to the predetermined speed.

Abstract: A system and method of compensating for torque converter slip in a motor vehicle include measuring rotational speeds of an engine crankshaft and mainshaft, as well as measuring operating temperatures of a fluid associated with the motor vehicle. Engine output torque is adjusted as required by controlling some combination of ignition timing, intake air flow, fuel injection, and accessory load. A system and method for deactivating a torque compensation system retrieves a number of times the torque compensation system has been activated over a set period. If the number exceeds a predetermined number of activations, the torque compensation system is deactivated.

Abstract: An oil strainer for a vehicle transmission includes a body case, a suction port member, a suction port, and a connection tube. The body case contains a filtering member. The suction port member is separated from the body case. The suction port is provided in the suction port member. The connection tube has flexibility or stretchability and connects the body case to the suction port member. The connection tube has a structure which is bent or which is expanded and contracted to allow the suction port member to move while following a change in an oil surface of oil in a transmission casing of the vehicle transmission so that the suction port is not exposed at the oil surface when a position of the oil surface varies due to lean of a vehicle or acceleration/deceleration applied to the vehicle.

Abstract: A system and method of compensating for torque converter slip in a motor vehicle include measuring rotational speeds of an engine crankshaft and mainshaft, as well as measuring operating temperatures of a fluid associated with the motor vehicle. Engine output torque is adjusted as required by controlling some combination of ignition timing, intake air flow, fuel injection, and accessory load.

Abstract: A method of controlling an engine in a motor vehicle includes opening a throttle to an increased angle when conditions for fuel cut cycling are met. More specifically, when cruise control is on, the motor vehicle is moving downhill, and the current speed drops below a target speed, the engine control unit may choose to increase the angle of the throttle while maintaining fuel cut. Under other interrupting events, the engine control unit may choose to resume fueling control or reduce the throttle angle.

Abstract: A system and method of compensating for torque converter slip in a motor vehicle include measuring rotational speeds of an engine crankshaft and mainshaft, as well as measuring operating temperatures of a fluid associated with the motor vehicle. Engine output torque is adjusted as required by controlling some combination of ignition timing, intake air flow, fuel injection, and accessory load.