Abstract: An automatic transmission control apparatus is provided with a control scheme that focuses on the rotational speed differences of the frictional engaging elements and the distribution of torque transferred by the frictional engaging elements. When the automatic transmission is upshifted while in a power-off state, the individual torque capacity of a frictional engaging element being released and the individual torque capacity of a frictional engaging element being connected are corrected by adding a prescribed torque capacity amount to each of the individual torque capacities during an inertia phase of the shift control in which a compensation is executed for inertia related to changing the gear ratio. In this way, frictional losses are induced in the frictional engaging elements so as to absorb the inertia torque and lower the input rotational speed more quickly.

Abstract: An automatic transmission includes at least an input section, an output section, first and second frictional engagement elements, and a controller. The input section receives an input torque from a drive unit. The first frictional engagement element has an engaged state allowing the output section to rotate at a first transmission gear ratio with respect to the input section. The second frictional engagement element has an engaged state allowing the output section to rotate at a second transmission gear ratio with respect to the input section. The controller controls at least a gear shift from the first transmission gear ratio to the second transmission gear ratio. The controller controls the first and second frictional engagement elements and the drive unit so as to cancel an inertia torque resulting from the gear shift.

Abstract: An automatic transmission hydraulic control apparatus includes an oil pump driven by an engine, a forward clutch arranged to be engaged by an engagement pressure from the oil pump at a start of the vehicle, a hydraulic pressure sensing section configured to sense a hydraulic pressure in the automatic transmission, a filling start judging section configured to judge a start of filling to the forward clutch in accordance with the sensed hydraulic pressure; and an engagement pressure control section configured to control the engagement pressure to go through a filling phase and an engagement phase. The engagement pressure control section shifts from the filling phase to the engagement phase when a predetermined time elapses from the judgment of the start of the filling to the forward clutch.

Abstract: A clutch control device that controls a clutch by driving a piston using a working fluid, having: stroke start determining means (S1) for determining that a stroke of the piston has started and detecting a stroke start oil pressure at that time; stroke end determining means (S4) for determining that the stroke of the piston is complete and detecting a stroke end oil pressure at that time; stroke end range estimating means (S3) for estimating a range of the stroke end oil pressure from the stroke start oil pressure detected by the stroke start determining means; and learning means (S5, S6) for learning the stroke end oil pressure detected by the stroke end determining means when the stroke end oil pressure is within the estimated range of the stroke end oil pressure. Learning precision of the stroke end oil pressure can be improved.

Abstract: A control apparatus of an automatic transmission having first and second frictional engagement elements that achieve lower and higher speed gear stages respectively, includes a target value determination section setting a rotation speed difference between input and output sides of the frictional engagement element, a total torque capacity calculation section calculating a total torque capacity, a distribution ratio determination section setting a distribution ratio of the total torque capacity to the first and second frictional engagement elements, an individual torque capacity calculation section calculating individual torque capacities respectively required of the first and second frictional engagement elements, and an engagement control section controlling engagement conditions of the first and second frictional engagement elements in accordance with the individual torque capacity.

Abstract: A position detecting device is basically provided with a control section, a detecting section and a setting section. The control section repeatedly controls a gear connecting mechanism in a vehicle transmission to selectively perform a gear connecting operation to obtain a selected gear range and a gear releasing operation to release the selected gear range after the gear connecting operation has been performed. The detecting section detects a position of a connecting member of the gear connecting mechanism after the gear connecting operation has been performed. The setting section sets a shift completion position at which connecting of the selected gear range is determined to be completed based on a plurality of positions of the connecting member of the gear connecting mechanism detected by the detecting section.

Abstract: A control apparatus of an automatic transmission having first and second frictional engagement elements that achieve higher and lower speed gear stages respectively, includes a target value determination section setting a rotation speed difference between input and output sides of the frictional engagement element, a total torque capacity calculation section calculating a total torque capacity, a distribution ratio determination section setting a distribution ratio of the total torque capacity to the first and second frictional engagement elements, an individual torque capacity calculation section calculating individual torque capacities respectively required of the first and second frictional engagement elements, and an engagement control section controlling engagement conditions of the first and second frictional engagement elements in accordance with the individual torque capacity.

Abstract: A shift position detecting device comprises a shift position sensor that continuously issues an output data that represents a shift position of the gear selection mechanism; and a control unit.

Abstract: A rapid acceleration control apparatus has a rapid acceleration prime mover rotational speed control section and a rapid acceleration start clutch capacity control section. The rapid acceleration prime mover rotational speed control section executes a rapid acceleration start prime mover rotational speed control that control a rotational speed of the prime mover to a target rotational speed required to achieve the rapid acceleration start when a rapid acceleration start condition exists in which both an accelerator and a brake are simultaneously operated while the vehicle is stopped. The rapid acceleration start clutch capacity control section executes a rapid acceleration start clutch capacity control that decreases a connection capacity of the clutch during the rapid acceleration start prime mover rotational speed control executed by the rapid acceleration prime mover rotational speed control section to suppress heating of the clutch due to the rapid acceleration start primer mover rotational speed control.

Abstract: A shift control apparatus includes an automatic transmission provided with a first friction-engagement element and a second friction-engagement element; and a friction-engagement element control section configured to control the first and second friction-engagement elements. The friction-engagement element control section includes a target-value setting section configured to set a first target differential speed; a first control section configured to bring a rotational speed difference of the first friction-engagement element gradually close to the first target differential speed; and a second control section. The second control section includes a torque-capacity calculating section configured to calculate a total transfer-torque capacity, and a distribution ratio setting section configured to set a distribution ratio between transfer-torque capacities of the first and second friction-engagement elements.

Abstract: A package has a base substrate that is a metal plate electrically connected to one electrode of a UV-ray light emitting diode and a cover substrate that is a metal plate electrically connected to the other electrode and that is stacked on the base substrate. A plurality of packages are mounted on a header such that center lines of the base substrates extending in their widthwise directions are aligned to each other. The cover substrates are arranged asymmetrical with respect to the longitudinal center line of the base substrates so as to traverse the center line. When mounted on the header, the packages are arranged such that positions of the cover substrates are staggered with respect to the center line. Moreover, the base substrate of one of the adjacent packages and the cover substrate of the other adjacent package are connected together by a connection plate fastened to the base substrates and the cover substrate by connection screws.

Abstract: A heatsink carries a UV-ray light emitting diode. Flow passages for causing circulation of a fluid that cools the UV-ray light emitting diode are opened in the heatsink. Supply ports and discharge ports are opened in a mount surface of a header where supply and discharge of the fluid for cooling purpose to and from the heatsink are performed. A pair of circulation orifices corresponding to the supply port and the discharge port are opened in the contact surface that contacts the mount surface in the heatsink. Recesses are formed around the respective circulation orifices, and an annular sealing member that exhibits rubber elasticity and that is compressed between the heatsink and the header is disposed in each of the recesses.

Abstract: A hydraulic clutch control system includes a clutch, a hydraulic circuit that supplies a hydraulic pressure to a piston of the clutch so as to cause a stroke of the piston for engagement of the clutch, a primary hydraulic pressure signal generation unit that generates a primary hydraulic pressure signal to regulate a magnitude of the hydraulic pressure, a secondary hydraulic pressure signal generation unit that generates a secondary hydraulic pressure signal to induce fluctuations in the hydraulic pressure, a hydraulic pressure control unit that operates the hydraulic circuit to control the hydraulic pressure according to the primary and secondary hydraulic pressure signals, a detection unit that detects the amount of fluctuations in the hydraulic pressure and a piston stroke judgment unit that judges the piston stroke based on the hydraulic pressure fluctuation amount.

Abstract: An automatic transmission control apparatus is provided with a control scheme that focuses on the rotational speed differences of the frictional engaging elements and the distribution of torque transferred by the frictional engaging elements. When the automatic transmission is upshifted while in a power-off state, the individual torque capacity of a frictional engaging element being released and the individual torque capacity of a frictional engaging element being connected are corrected by adding a prescribed torque capacity amount to each of the individual torque capacities during an inertia phase of the shift control in which a compensation is executed for inertia related to changing the gear ratio. In this way, frictional losses are induced in the frictional engaging elements so as to absorb the inertia torque and lower the input rotational speed more quickly.

Abstract: A clutch control apparatus for a power transmission system including an input rotating member and an output rotating member. The clutch control apparatus includes a friction clutch, and a control unit. The control unit sets a first desired clutch torque setting in accordance with a clutch slip indicator; sets a second desired clutch torque setting to an amount of torque input from the input rotating member to the friction clutch; controls the clutch torque to be the first desired clutch torque setting during a starting stage of the friction clutch; controls the clutch torque to be the second desired clutch torque setting during a steady-state stage of the friction clutch; and controls the clutch torque to gradually change from the first desired clutch torque setting to the second desired clutch torque setting during a transition stage between the starting stage and the steady-state stage.

Abstract: A control apparatus for an automatic transmission includes a target-value setting section configured to set a target rotational-speed difference between input and output rotational speeds of at least one of first and second friction-engagement elements to cause the input rotational speed to be higher than the output rotational speed, when a downshift is carried out during a power-on running; a total torque-capacity calculating section configured to calculate a total torque capacity of the first and second friction-engagement elements by adding a transmission input torque to a correction value calculated from a deviation between the target rotational-speed difference and an actual rotational-speed difference, so as to bring the actual rotational-speed difference to the target rotational-speed difference; a distribution-ratio setting section configured to set a distribution ratio; an individual torque-capacity calculating section configured to calculate individual torque capacities of both second friction-engag

Abstract: A control apparatus of an automatic transmission having first and second frictional engagement elements that achieve lower and higher speed gear stages respectively, includes a target value determination section setting a rotation speed difference between input and output sides of the frictional engagement element, a total torque capacity calculation section calculating a total torque capacity, a distribution ratio determination section setting a distribution ratio of the total torque capacity to the first and second frictional engagement elements, an individual torque capacity calculation section calculating individual torque capacities respectively required of the first and second frictional engagement elements, and an engagement control section controlling engagement conditions of the first and second frictional engagement elements in accordance with the individual torque capacity.

Abstract: A control apparatus of an automatic transmission having first and second frictional engagement elements that achieve higher and lower speed gear stages respectively, includes a target value determination section setting a rotation speed difference between input and output sides of the frictional engagement element, a total torque capacity calculation section calculating a total torque capacity, a distribution ratio determination section setting a distribution ratio of the total torque capacity to the first and second frictional engagement elements, an individual torque capacity calculation section calculating individual torque capacities respectively required of the first and second frictional engagement elements, and an engagement control section controlling engagement conditions of the first and second frictional engagement elements in accordance with the individual torque capacity.

Abstract: An automatic transmission includes at least an input section, an output section, first and second frictional engagement elements, and a controller. The input section receives an input torque from a drive unit. The first frictional engagement element has an engaged state allowing the output section to rotate at a first transmission gear ratio with respect to the input section. The second frictional engagement element has an engaged state allowing the output section to rotate at a second transmission gear ratio with respect to the input section. The controller controls at least a gear shift from the first transmission gear ratio to the second transmission gear ratio. The controller controls the first and second frictional engagement elements and the drive unit so as to cancel an inertia torque resulting from the gear shift.

Abstract: A position detecting device is basically provided with a control section, a detecting section and a setting section. The control section repeatedly controls a gear connecting mechanism in a vehicle transmission to selectively perform a gear connecting operation to obtain a selected gear range and a gear releasing operation to release the selected gear range after the gear connecting operation has been performed. The detecting section detects a position of a connecting member of the gear connecting mechanism after the gear connecting operation has been performed. The setting section sets a shift completion position at which connecting of the selected gear range is determined to be completed based on a plurality of positions of the connecting member of the gear connecting mechanism detected by the detecting section.