| Patent Number |
Title Of Patent |
Date Issued |
| 6777837 |
Hybrid-vehicle drive unit |
August 17, 2004 |
| A hybrid-vehicle drive unit supports a motor-generator with high precision, improving the efficiency of the motor-generator, and reducing the size of the motor-generator, independent of any influence of centering precision of the crank shaft and of deformation of the torque converter. Ac |
| 6258001 |
Vehicle drive train |
July 10, 2001 |
| The present invention improves mountability of a drive train in a hybrid vehicle by minimizing axial and radial dimensions while providing for adequate output torque of the motor/generator of the drive train. A center portion of a front cover of a torque converter extends axially and a |
| 6059684 |
Drive train for electric cars |
May 9, 2000 |
| A novel drive train includes a motor, a differential gear unit, and a counter gear mechanism for transmitting the power of the motor to the differential gear unit. A universal joint for joining the differential gear unit to an axle shaft of a vehicle is arranged outward of one axial |
| 5990591 |
Permanent magnet type synchronous motor |
November 23, 1999 |
| A permanent magnet type synchronous motor includes an iron core rotor having a plurality of holes which are circumferentially spaced, permanent magnets mounted in the holes, an iron core stator and coils arranged in the stator iron core. The permanent magnets are defined by a flat surfac |
| 5936322 |
Permanent magnet type synchronous motor |
August 10, 1999 |
| A permanent magnet type synchronous motor has a stator having teeth that are circumferentially aligned, and a rotor disposed radially inward of the stator. The rotor is made up of permanent magnets facing the teeth and mounted on a rotor core having protrusions that protrude radially out |
| 5889342 |
Motor cooling circuit |
March 30, 1999 |
| A cooling circuit for a motor which includes a rotor having a rotor shaft, and a core fitted on the rotor shaft and carrying a plurality of permanent magnets arranged on its outer circumference. A stator is arranged radially outward of the rotor. The motor cooling circuit includes axiall |
| 5845732 |
Drivetrain for an electric vehicle |
December 8, 1998 |
| A drivetrain for an electric vehicle includes a motor, a pair of drive shafts, and a compact and simple transmission mechanism composed of two planetary gear units to achieve a differential function as well as a large reduction speed ratio. The transmission mechanism has an input element |
| 5832789 |
Drive unit for an electric vehicle |
November 10, 1998 |
| A motor casing containing a motor has an end wall with bosses and bolt receiving holes positioned radially inward relative to a stator mounted in a circumferential wall of the motor casing. A gear unit with a gear casing includes bosses and bolt holes on its periphery mating with bosses |
| 5821653 |
Drive apparatus for electric vehicle |
October 13, 1998 |
| A drive apparatus for an electric vehicle comprises a motor (1), a gear section (9) for transmitting rotation of a rotor shaft (2) of the motor to a wheel, and a case (10, 90) for accommodating the motor and the gear section. The case has a partition (12) that separates a motor chamber ( |
| 5760520 |
Motor |
June 2, 1998 |
| A motor has a stator and a rotor that is formed of two rotor parts fitted on a rotor shaft in a fashion preventing the rotor from rotating relative to the rotor shaft. The rotor parts carry permanent magnets arranged with a fixed pitch angle over their outer peripheral faces. The rotor s |
| 5718302 |
Hydraulic circuit for electric car drive train |
February 17, 1998 |
| A hydraulic circuit for an electric car drive train including a motor, a torque transmission device for transmitting the output torque of the motor to drive wheels, an oil pump for feeding the oil from an oil reservoir, a drive device for rotationally driving the oil pump and a discharge |
| 5533943 |
Planetary gear device including planetary gears each having integrally formed large and small pi |
July 9, 1996 |
| A planetary gear device including a first gear, a second gear, a carrier, and composite planetary gears each having a large- and a small-diameter pinion that are formed integrally with each other and arranged in the axial direction. The composite planetary gears are mounted rotatably on |
| 5528094 |
Drive system for electric cars |
June 18, 1996 |
| A drive system comprises first and second motors for driving an electric car in response to alternating electric currents supplied to their coils. The first and second motors have their respective first and second rotors assembled on a common shaft at angular positions which are shifted |
| 5419406 |
Drive system for electric car |
May 30, 1995 |
| A drive system for an electric vehicle includes a plurality of motors and reduction gearing, including planetary gearing, for power transmission from the motors to the wheels of the electric vehicle. The motors and the reduction gearing are coaxially arranged so that they can be mounted |
| 5396968 |
Drive mechanism for electric car |
March 14, 1995 |
| A drive mechanism for an electric car which has a plurality of motors arranged in a drive mechanism case which, in turn rotatably supports a shaft at two points. This shaft transmits the rotation generated by the motors to drive shafts for rotation of the wheels to run the car. The m |
| 5372213 |
Oil circulating system for electric vehicle |
December 13, 1994 |
| An electric vehicle includes a drive motor for generating a output drive torque, a torque transmission train for transmitting the output torque to the drive wheels of the electric vehicle and an oil circulating circuit for feeding oil to the drive motor and the torque transmission train. |
| 5094652 |
Belt driven continuously variable transmission |
March 10, 1992 |
| This invention relates to a belt driven continuously variable transmission having a pressure regulating cam mechanism giving an axial force corresponding to the transmission torque to a pulley and preventing too much belt pressing force. A retainer is fixed on a boss section of a sta |
| 5080639 |
Variable transmission |
January 14, 1992 |
| An output shaft of a motor is connected to an operating shaft through a reduction device made up by a spur gear or a helical gear, which is a reversible power transmission to drive actuator mechanisms on a primary pulley and secondary pulley at the same time. A holding device such as an |
| 5024638 |
Actuator for a frictional engaging device |
June 18, 1991 |
| An actuator for frictional engaging devices is controlled by electric signals from a control device and is disposed in a power transmission device. The actuator includes a torque generating mechanism and has at least two movably mounted frictional engaging devices having respective i |
| 4946424 |
Belt driven continuously variable transmission |
August 7, 1990 |
| This invention relates to a belt driven continuously variable transmission having a pressure regulating cam mechanism giving a pulley an axial force which corresponds to transmission torque and eliminates torque transmission by friction between a pressure regulating cam and a fixed r |
| 4909776 |
Continuously variable transmission |
March 20, 1990 |
| One of bolt section or a nut section on a ball screw devices, or nut sections (for example) are connected to gear sections axially movable, while the bolt sections are connected to a stationary element, so that relative rotation is given to the bolt section and the nut section to adj |
| 4735598 |
Continuously variable V-belt transmission |
April 5, 1988 |
| Pulleys are provided with load cam mechanisms which exert axial forces corresponding to transmitted torque, and actuator means such as ball screw mechanisms which shift the movable sheaves of both pulleys in axial direction, wherein the axial forces occuring at the pulleys are carried by |
| 4717368 |
Stepless belt transmission |
January 5, 1988 |
| A stepless belt transmission includes a working fluid control unit having a supply port for supplying working fluid to a hydraulic actuator, a discharge port for discharging the working fluid from the hydraulic actuator, a lead mechanism for changing the working fluid pressure intern |
| 4655735 |
Endless driving belt |
April 7, 1987 |
| An endless driving belt of the kind adapted for entrainment between at least two pulleys in a V-belt continuously variable transmission, has a plurality of links; means for connecting each link to a next link to enable articulated movement of the links; a plurality of primary blocks |
