| Patent Number |
Title Of Patent |
Date Issued |
| 7255186 |
Hybrid drive system and vehicle equipped therewith |
August 14, 2007 |
| An output of an internal combustion engine is transmitted to an output shaft by controlling a control motor to change a rotation speed output from the engine without speed steps via power distribution planetary gear. An output of a drive motor is input to the output shaft by changing |
| 7174978 |
Hybrid drive unit, and front-engine/rear-drive type automobile having the hybrid drive unit moun |
February 13, 2007 |
| A hybrid drive unit including a first motor, a first planetary gear and a second motor, wherein the first planetary gear distributes and transmits a drive force transmitted from an input shaft to the first motor and an output shaft, a power output from the output shaft and the second mot |
| 7075441 |
Stuck state detection seal and stuck state detection system |
July 11, 2006 |
| A state where a seal is stuck to an article is detected, and an unauthorized takeout is prevented. A stuck state detection seal comprises a sealing base member to be stuck to the article N and a sealing surface member to be stuck to the sealing base member overlapped thereon. Between |
| 7052433 |
Automatic transmission |
May 30, 2006 |
| A reduced rotation output unit for outputting a reduced rotation obtained by reducing rotation of an input shaft is arranged at one side of a planetary gear unit in an axial direction, a first clutch and a second clutch interposed between a second rotation element of the planetary gear |
| 6935450 |
Hybrid vehicle driving device |
August 30, 2005 |
| A motor/generator is arranged radially outward of a middle portion of a front cover of a torque converter so that at least a part of the motor/generator axially overlaps the torque converter, with a predetermined gap (C) between the front cover and the rotor of the motor/generator. T |
| 6679804 |
Automatic transmission |
January 20, 2004 |
| A multi-stage automatic transmission using a reduction planetary gear and a planetary gear set in which the respective thrust forces generated thereat are supported by a low bearing load or a low case load. The automatic transmission is provided with a reduction planetary gear, coupled t |
| 6553868 |
Gear supporting structure and hybrid driving unit employing gear supporting structure |
April 29, 2003 |
| A gear supporting structure is designed to support two gears on a shaft with a short axial supporting span and without eccentricity or inclination. In this gear supporting structure wherein a first gear and a second gear are supported by a shaft in whirl-stopping and centering manner |
| 6478101 |
Drive unit for hybrid vehicle |
November 12, 2002 |
| To reduce the axial dimension and size of a drive train for a hybrid vehicle, a rotor is supported within a recess formed in the end face of the a crankshaft and is further supported by the front cover of the torque converter. As a result, compared with drive trains which have a fixed |
| 6475113 |
Hydraulic control system of automatic transmission |
November 5, 2002 |
| A hydraulic control system includes switching mechanisms for receiving as a signal pressure a hydraulic pressure which is output from each shifting mechanism when all units of the shifting mechanisms are caused to output a hydraulic pressure, and being responsive to the reception of the |
| 6464610 |
Hydraulic pressure control apparatus for automatic transmission |
October 15, 2002 |
| A structure in which a hydraulic-pressure control applied pressure for controlling each engagement element of an automatic transmission is realized by using an electric signal such that combinations of engagement which encounter a tie-up in case of a failure of the signal lead to int |
| 6422356 |
Automatic transmission with band brake and hydraulic operator |
July 23, 2002 |
| The automatic transmission of the present invention prevents fluctuation of torque transmission through a band brake. In the hydraulic operator for the band brake, a resilient elastic cushion is provided between a rod abutting one end of the band of the band brake and a piston. Any slipp |
| 6415685 |
Vehicular automatic transmission |
July 9, 2002 |
| An automatic transmission disposed in a case with a speed change mechanism disposed around an input shaft, a gear supported to a support wall of the case so as to transmit the output of the speed change mechanism to another shaft extending along the input shaft, and a rear cover portion |
| 6361468 |
Automatic transmission |
March 26, 2002 |
| A multi-stage automatic transmission using a reduction planetary gear and a planetary gear set in which the respective thrust forces generated thereat are supported by a low bearing load or a low case load. The automatic transmission is provided with a reduction planetary gear, coupled t |
| 6302822 |
Hydraulic control system of automatic transmission |
October 16, 2001 |
| A hydraulic control system includes switching mechanisms for receiving as a signal voltage a hydraulic pressure which is output from each shifting mechanism when all units of the shifting mechanisms are caused to output a hydraulic pressure, and being responsive to the reception of the s |
| 6269895 |
Hybrid drive system |
August 7, 2001 |
| In a state a vehicle is stopped at an intersection, an infinitely variable transmission is in a neutral position, a motor/generator rotates with a low speed, an oil pump and an auxiliary equipment are in rotating state. At that time, an input clutch is disengaged, and the internal engine |
| 6220402 |
Hydraulic servo apparatus for automatic transmission |
April 24, 2001 |
| A hydraulic servo includes a cylinder, a piston and a rod. The piston divides the interior space of the cylinder between a closed hydraulic chamber and a back chamber which has an opening to the interior space of an automatic transmission. The rod is slidably mounted in the piston for |
| 6176802 |
Vehicular automatic transmission |
January 23, 2001 |
| A reduction in the weight and size of a speed-change mechanism is obtained by shortening a high-torque transmission system. The speed-change shock is attenuated by reducing an inertia torque in a muilti-stage vehicular automatic transmission. The vehicular automatic transmission is equip |
| 6146308 |
Creep torque control of infinitely variable transmission |
November 14, 2000 |
| In a neutral N control for substantially equalizing axial forces to act on two pulleys, a belt type continuously variable transmission (CVT) self-converges into the gear neutral point (GN) at which the output shaft RPM takes the value 0. When the convergence is made to the GN point to |
| 6139471 |
Control system for automatic transmission |
October 31, 2000 |
| A control system for an automatic transmission includes a fluid transmission unit connected to an engine; a clutch; a hydraulic servo; output RPM detector for detecting the output RPM of the fluid transmission unit; oil pressure generator for generating the oil pressure fed to the hy |
| 6139463 |
Automatic transmission for vehicle |
October 31, 2000 |
| An automatic transmission comprises a reduction planetary gear, two clutches transmitting a decelerated rotation transmitted from the reduction planetary gear, and a planetary gear set comprising two elements to which the decelerated rotation is inputted through the two clutches. The |
| 6135912 |
Automatic transmission for a vehicle |
October 24, 2000 |
| An automatic transmission, which establishes automatic shifts in a multiple gear stages by selectively inputting a plurality of input rotations to a planetary gear set, includes first and third clutches connected through a reduction planetary gear to an input shaft and transmits a decele |
| 6128565 |
Hydraulic control system for automatic transmission |
October 3, 2000 |
| In a disengagement side control, in a power on state, a disengagement side pressure P.sub.W is output, P.sub.W being set higher than a base pressure dependent on input torque, and a disengagement side frictional engagement element is engaged and maintained. In a power off state, a diseng |
| 6120410 |
Automatic transmission for vehicle |
September 19, 2000 |
| An automatic transmission establishing multiple gear stages includes a reduction planetary gear, at least two clutches transmitting a decelerated rotation transmitted from the reduction planetary gear, and a planetary gear set inputted the decelerated rotation transmitted through the two |
| 6110069 |
Automatic transmission for vehicle |
August 29, 2000 |
| An automatic transmission includes a planetary gear set inputted a decelerated rotation and a non-decelerated rotation and outputting a plurality of shift rotations, a reduction planetary gear, an input shaft, first and third clutches which are able to engage/disengage for connecting |
| 6098005 |
Vehicle transmission controller for changing gear ratios in accordance with road features |
August 1, 2000 |
| There is provided control over transmission stages which suppresses unnecessary shifts to a higher speed based on road information stored in a navigation system to allow smooth acceleration. An intersection ahead of the vehicle in the traveling direction is detected based on the road |
| 6096988 |
Neutral start switch |
August 1, 2000 |
| A neutral start switch has a base on which stationary contacts are arranged and a rotor on which movable contacts capable of contacting the stationary contacts are disposed. The stationary contacts include reverse lamp contacts connected to a reverse lamp lighting circuit, position stati |
| 6068576 |
Hydraulic control system for automatic transmission |
May 30, 2000 |
| When a vehicle driving state of an automatic transmission is changed to a power-off state from a power-on state during a down shift involving the disengagement of one friction element and the engagement of another friction element, a disengagement side pressure PA is reduced rapidly by a |
| 5964335 |
Parking device for automatic transmission |
October 12, 1999 |
| A parking control mechanism to prevent generation of noise and shock when a parking range is released after a vehicle has been parked so that a driver does not feel uncomfortable. A parking apparatus of an automatic transmission has a parking gear; a parking pole swingably disposed and |
| 5961419 |
Lubricant control apparatus for automatic transmission |
October 5, 1999 |
| A lubricant control apparatus for an automatic transmission including a lubricating unit for feeding the lubricating oil to the portions of a speed change mechanism so that the heat to be generated in the speed change mechanism may be absorbed and recovered by the lubricating oil. The |
| 5961418 |
Infinitely variable transmission |
October 5, 1999 |
| An infinitely variable transmission has a gear neutral (GN) point and serves as an output member by torque circulation. When a pulley ratio thereof is within a predetermined range from the GN point, a coasting state occurs which may hinder smooth torque transmission based on the tran |
| 5957800 |
Shift control system for automatic transmission |
September 28, 1999 |
| A shift control system of an automatic transmission sets a predetermined gear stage by applying a first frictional engagement element and releasing a second frictional engagement element. A pressure regulating mechanism regulates an oil pressure to be fed to or drained from the first |
| 5951433 |
Automatic transmission |
September 14, 1999 |
| In an automatic transmission, a small-capacity second clutch that does not engage for reverse drive is mounted forward of a counter drive gear, and the other engaging elements of relatively larger capacity, that is, first and third clutches and first to third brakes, are disposed rearwar |
| 5935041 |
Automatic transmission with anti-rollback band brake pressure control |
August 10, 1999 |
| A control system for a vehicular automatic transmission includes a speed change mechanism including an output element that is connected to the drive shaft of a vehicle to transmit power, and a rotary element connected to the output element. A control system for the speed change mechanism |
| 5931885 |
Hydraulic control system for an automatic transmission |
August 3, 1999 |
| A control apparatus executes appropriate speed change control under any operating conditions encountered during an up-shift by change-over, without requiring an increase in control logic. Engagement side hydraulic pressure is swept up as a result of an arithmetic operation in torque |
| 5911646 |
Control apparatus for automatic transmission |
June 15, 1999 |
| When a vehicle is halted with the transmission in a forward drive range, an input clutch is disengaged to enhance the fuel efficiency and, at the same times a hill-hold brake is engaged to prevent the vehicle from rolling backward on a steep up-slope. At that time, the hydraulic pressure |
| 5908461 |
Control system for automatic transmission |
June 1, 1999 |
| A control system for an automatic transmission having a running status detector for detecting the running status of a vehicle including an input torque from an engine; a running resistance estimator for estimating a running resistance on the basis of the running status of the vehicle; a |
| 5908370 |
Hydraulic control system using a torque allotment ratio to determine engagement pressures for an |
June 1, 1999 |
| In power-on, high-vehicle-speed and high-torque conditions, a control unit sets a torque allotment ratio such that a main clutch bears all the torque. Thereby, the input shaft rotational speed is increased by controlling solely the main clutch releasing pressure. In power-on and low- |
| 5908096 |
Hydraulic servo unit for vehicular power transmission system |
June 1, 1999 |
| A hydraulic servo unit for a vehicular power transmission system having a helical gear, including a clutch for connecting predetermined rotary elements to each other and a hydraulic servo for applying the clutch, the hydraulic servo including a cylinder, a piston fitted in the cylinder, |
| 5890988 |
Automatic transmission for vehicle with reverse gear brake |
April 6, 1999 |
| An automatic transmission for a vehicle with a reverse gear brake that includes a case. A predetermined rotational element, having gear teeth and an axis, is disposed within the case. The predetermined rotational element only operates as a rotational element when achieving a reverse gear |
| 5881858 |
Hydraulic servo-mechanism for an automatic transmission |
March 16, 1999 |
| A hydraulic servo-mechanism for an automatic transmission, including a hydraulic servo for applying a band brake to engage a band to a drum. The hydraulic servo includes a rod which is selectively positionable to an apply position for applying the band brake, a standby position in which |
| 5876300 |
Vehicular automatic transmission |
March 2, 1999 |
| A vehicular automatic transmission for establishing a plurality of forward gear stages, includes: a transmission case; an input shaft; a transmission mechanism connected to the input shaft and including a plurality of transmission elements; an output shaft connected to the transmission |
| 5853344 |
Automatic transmission |
December 29, 1998 |
| Smooth driving of a vehicle is achieved by eliminating busy shift by providing a small gear ratio step between the two highest gear ranges while maintaining structural compactness of the transmission. In the second highest gear range or state, a first pinion P1 has a diameter smaller |
| 5846155 |
Vehicular drive unit |
December 8, 1998 |
| A vehicular drive unit having a combustion engine, a motor-generator for converting electric energy coming from a battery into mechanical energy to output the converted mechanical energy or for converting mechanical energy into electrical energy to store the converted electrical energy i |
| 5846152 |
Continuously variable transmission |
December 8, 1998 |
| A transmission unit includes a belt type continuously variable transmission (CVT) having a first pulley arranged on a first shaft with a stationary sheave, a movable sheave and a hydraulic actuator for the movable sheave. The second pulley of the CVT is mounted on a second shaft and also |
| 5842950 |
Control apparatus for automatic transmissions |
December 1, 1998 |
| To optimize the application hydraulic pressure of the friction application elements in the transmission mechanism, and to reduce the unnecessary load on each member, the transmission mechanism of an automatic transmission is provided with a plurality of friction application elements whic |
| 5836852 |
Control mechanism for automatic transmission |
November 17, 1998 |
| Uncomfortable travel of a vehicle due to engine brake actions during the travel of the vehicle in traffic is prevented without using an one-way clutch within a transmission mechanism. An automatic transmission is composed of rotational elements that are braked at the time of establis |
| 5833571 |
Continuously variable transmission |
November 10, 1998 |
| A continuously variable transmission is switchable between the low and high modes by changing engagement between two clutches. A sensor shoe which moves in association with a movable sheave of a primary pulley is provided with an indent and a protrusion formed at different locations on t |
| 5830101 |
Automatic transmission |
November 3, 1998 |
| A compact structure for a speed change mechanism within a transmission is shown. An automatic transmission includes an input shaft supported at its opposite ends, an input member operatively connected to a first end of the input shaft, an output member mounted on a second end of the inpu |
| 5822987 |
Stator and one way clutch assembly for a torque converter |
October 20, 1998 |
| In a torque converter, in order to reduce the cost, simplify the manufacturing process and ensure the centering precision of of the stator relative to the outer race of a one-way clutch, the stator and the outer race of the one-way clutch have first engaging surface portions preventing |
| 5813933 |
Continuously variable transmission with bias springs on the drive and driven pulleys for setting |
September 29, 1998 |
| A continuously variable transmission has springs, which urge the movable sheaves of primary-side and secondary-side pulleys, set to achieve a pulley ratio r.sub.1 approximate to or within a predetermined range of a neutral pulley ratio r.sub.N so that a vehicle takeoff response delay is |
