| Patent Number |
Title Of Patent |
Date Issued |
| 7406373 |
Electric power steering system |
July 29, 2008 |
| An electric power steering system for an automotive vehicle, including a steering torque detecting device which detects a steering torque of a steering shaft. An electric motor is provided to generate an assist torque for assisting a driver's steering effort required for steering the |
| 7266436 |
Lane-keep control system and method for vehicle |
September 4, 2007 |
| A lane-keep control system includes a traveling condition detector and a controller. The controller includes a steering intention detecting section that detects whether a driver has an intention to steer a vehicle, a first steering torque control section that controls, when the drive |
| 7004280 |
Multiplex power steering device |
February 28, 2006 |
| In a multiplex power steering device for a wheeled vehicle, there is provided a control unit which includes a feedback computing part. The feedback computing part comprises an operating force estimating section that, by analyzing an output from a controlled system of actuators of a s |
| 6823241 |
Lane recognition apparatus for vehicle |
November 23, 2004 |
| A lane recognition apparatus for a vehicle is comprised of an image picking-up section which picks up a road image in front of the vehicle, a lane-marker candidate-point detecting section which detects coordinate values of a plurality of lane marker candidate points from the road image, |
| 6751539 |
Vehicle steering control system |
June 15, 2004 |
| In a steering mechanism of steer-by-wire type which includes a first steering unit that is handled by a driver and a second steering unit that steers steered road wheels with the aid of a steering motor, there is employed a control system which input and output detecting sections that |
| 6580986 |
Lane-following system by detection of lane marking |
June 17, 2003 |
| A CCD camera or equivalent sensor is mounted on a vehicle and used to detect lane markings (usually the white or yellow painted lines) on a roadway. An electric motor coupled to a steering system is used to provide a torque input to the steering, which may either assist or oppose the |
| 6489887 |
Lane-keep assisting system for vehicle |
December 3, 2002 |
| A system for assisting a lane-keep traveling of a vehicle is comprised of a camera for detecting a view ahead of the vehicle, a vehicle behavior detector including a vehicle speed sensor and a yaw rate sensor, and a controller. The controller is arranged to estimate a road shape on the |
| 6473678 |
Lateral control of vehicle for lane following |
October 29, 2002 |
| An apparatus for vehicle lane following in which a look ahead sensor including a CCD camera and an image processor detects a lane marking on the surface of a roadway. The image processor estimates a lateral displacement of a point at a preview distance in front of a vehicle from a ta |
| 6367525 |
Pneumatic tire and method of making tire |
April 9, 2002 |
| A pneumatic tire comprising a tread portion which comprises a surface rubber layer which is disposed in an outer portion of the tread portion in the radial direction of said tire and has a specific resistance of 10.sup.8 .OMEGA..multidot.cm or more after curing by vulcanization and c |
| 6269690 |
Method for estimating a tire wear life |
August 7, 2001 |
| The present invention provides a method for estimating a tire wear life which enables estimation of the tire wear life accurately in a short time. In this method, a rubber index Gi of a rubber test piece which is made of the same material as the material used in the tire tread portion of |
| 6212947 |
Method for estimating a tire wear life |
April 10, 2001 |
| A wear resistance index G1 of a tire whose wear life is to be estimated is measured by the Lambourn abrasion tester. Then, friction energies in free rolling, when the tire is fitted with a toe angle, under application of a side force, under application of a braking force and under applic |
| 6134509 |
Road curvature estimating apparatus |
October 17, 2000 |
| A road curvature estimating apparatus for a vehicle includes a vehicle attitude detector which detects an attitude of the vehicle with respect to a road, a front-and-rear wheel steer-angle detector, a vehicle speed detector and a road curvature calculator. The road curvature calculator |
| 6050359 |
Steering system for vehicle |
April 18, 2000 |
| A vehicle steering system includes a first steering mechanism for a manual steering mode and a second steering mechanism for an automatic steering mode. A controller steers the vehicle in accordance with information on driving environment, with the second steering mechanism when the auto |
| 5690361 |
Steering system for automotive vehicles |
November 25, 1997 |
| A steering system for an automotive vehicle provides an improved steering response characteristic and has has an elastic member which is included in a transmission path from a steering wheel to tires of the vehicle to be operated by the steering wheel, such as a steering column coupling |
| 5412571 |
Four-wheel steering apparatus for motor vehicle |
May 2, 1995 |
| A four-wheel steering apparatus for use with a motor vehicle supported on a pair of front wheels and a pair of rear wheels. The apparatus comprises a control unit for steering the front wheels to provide a front wheel auxiliary steer angle satisfying the following equation: ##EQU1## |
| 5351734 |
Pneumatic tire with foam rubber in the tread |
October 4, 1994 |
| Herein disclosed is a pneumatic tire which comprises a case and a tread which covers a crown portion of the case. The tread includes a foamed rubber which has a volume not less than 10% of that of the entire of the tread, and the foamed rubber is formed of a rubber composition which |
| 5337850 |
Rear wheel steering control system for automotive vehicles |
August 16, 1994 |
| A rear wheel steering control system for automotive vehicles steers rear wheels of the vehicle with a same-phase angle as the front wheels for a relatively small steering wheel operation angle, and with an opposite-phase angle to the front wheels for a relatively large steering wheel |
| 5317513 |
Apparatus for actively controlling steer angle of front wheels of vehicle |
May 31, 1994 |
| In an apparatus for actively controlling a steer angle of front wheels of a vehicle, a steering angle of a steering wheel is detected and then an active control amount for actively controlling the steer angle of the front wheels including a proportional term and a differential term is |
| 5268841 |
Apparatus for actively controlling steer angle of front wheels of vehicle |
December 7, 1993 |
| In an apparatus for actively controlling a steer angle of front wheels of a vehicle in accordance with a steering wheel angle, an active control amount for actively controlling the steer angle of the front wheels is calculated by an equation including a proportional term and a differenti |
| 5267629 |
Auxiliary steering system for a vehicle |
December 7, 1993 |
| An auxiliary steering system for a vehicle is adapted to additionally steer the front wheels and/or rear wheels of a vehicle upon the main steering of the front wheels by a steering maneuver of a steering wheel, while an auxiliary steer angle is determined in accordance with a differenti |
| 5147477 |
Pneumatic tire having foamed tread rubber |
September 15, 1992 |
| Herein disclosed is a pneumatic tire which comprises a case and a tread which covers a crown portion of the case. The tread includes a foamed rubber which has a volume not less than 10% of that of the entire of the tread, and the foamed rubber is formed of a rubber composition which |
| 5025059 |
Pneumatic tires with tread comprising a blend of isoprene rubber, high-transpolybutadiene rubber |
June 18, 1991 |
| The wear resistance of the pneumatic tire used under a high severity region is improved by using a particular high-trans polybutadiene rubber in a rubber composition for a ground contact part of the tire tread. |
| 5017636 |
Rubber compositions from modified trans-polybutadiene and rubber for tires |
May 21, 1991 |
| A rubber composition for tire having improved processability, wear resistance, rebound resilience and heat build-up comprises 20.about.70 parts by weight of a specified butadiene polymer, 30.about.80 parts by weight of at least one rubber selected from natural rubber, high cis-1,4 po |
| 5012881 |
Vehicle steering system with flow dividing valve |
May 7, 1991 |
| A vehicle steering system includes a front hydraulic actuator for steering front wheels, a rear hydraulic actuator for steering rear wheels, a front control valve of an open center type for controlling the fluid pressure of the front actuator, a rear control valve of the open center type |
| 4970646 |
Vehicle having secondarily steered front and rear wheels |
November 13, 1990 |
| A method of steering a vehicle having a set of steerable front wheels and a set of steerable rear wheels. The front and rear wheels are both secondarily steered in addition to a main steer of the front wheels caused by an operation of a front wheel steering gear in response to an operati |
| 4914147 |
Pneumatic tires |
April 3, 1990 |
| A heavy duty pneumatic tire for use in construction vehicles, truck and bus is disclosed, which comprises a tread rubber having improved cut resistance, resistance to rib tear, wear resistance, resistance to heat build-up, processability and the like. The tread rubber comprises 20-100 |
| 4882767 |
Stabilized transmitter |
November 21, 1989 |
| A stabilized transmitter includes a gain converter that varies its gain according to an electrical signal; a power amplifier that amplifies a high-frequency signal passed through the gain converter; and a compensator having a temperature sensor which detects the temperature of the power |
| 4739005 |
Rubber compositions comprising carbon black and an E-P block copolymer |
April 19, 1988 |
| A rubber composition having improved resistance to crack growth and cut resistance comprises 1.about.15 parts by weight of a resin composed mainly of propylene-ethylene block copolymer based on 100 parts by weight of rubber ingredient, and particular amount of carbon black having specifi |
