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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Sawada; Mamoru
Address:
Yokkaichi, JP
No. of patents:
51
Patents:


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Patent Number Title Of Patent Date Issued
8280588 Apparatus for travel support October 2, 2012
A travel support apparatus sets a travel locus of a vehicle based on a gaze point of a driver of the vehicle. By utilizing the gaze point, the travel locus is calculated and set for the travel control of the vehicle, especially for a curved portion of a road, in a matching manner that th
8170797 Method and apparatus for estimating behaviors of vehicle using GPS signals May 1, 2012
A method and an apparatus for estimating behaviors of a vehicle are provided. At least two GPS antennas are located along a longitudinal axis of a vehicle so that speed vectors at the positions where the GPS antennas are located can be determined based on GPS signals received by the
8082081 Vehicle control system December 20, 2011
A vehicle control system controls vibrations that are generated at a plurality of portions of a vehicle. An engine/drive system ECU and a brake system ECU store the same vehicle vibration model that is separated into a vehicle body vibration model, a chassis vibration model and a tire
7997363 Vehicle control system and method August 16, 2011
A vehicle control system calculates driver-required wheel torque, correction wheel torque to stabilize vehicle motion, required output shaft torque, alternator base torque, target engine torque and alternator torque to realize the output shaft torque. The required output shaft torque
7970516 Vehicle control system June 28, 2011
A vehicle control system estimates the vibration states of tires by using a vehicle vibration model that is separated into a vehicle body vibration model, a chassis vibration model, and a tire vibration model with high precision. The tire vibration model in the vehicle vibration model is
7885765 Method and apparatus for estimating behaviors of vehicle using GPS signals February 8, 2011
A method and an apparatus for estimating behaviors of a vehicle are provided. At least two GPS antennas are located along a longitudinal axis of a vehicle so that speed vectors at the positions where the GPS antennas are located can be determined based on GPS signals received by the
7783402 Vehicle stability control system August 24, 2010
A vehicle stability control system uses a physical quantity corresponding to a driver accelerator input to control engine power produced by an engine and to controllably drive an engine load device for regulating the engine power to produce a desired drive force. The vehicle stability
7630796 Body action information system December 8, 2009
A system and method are disclosed for providing a display relating to at least one aspect of vehicle body action. The system includes at least one sensor, to sense information of a vehicle. Further, an estimating part is included to determine at least one aspect of vehicle body action ba
7599763 Vehicle stability control system October 6, 2009
A vehicle stability control system includes a base required driving force calculation unit, an estimated driving force estimation unit, and a required driving force correction unit. The base required driving force calculation unit calculates a physical quantity to generate the base r
7580820 Vehicle control information conveyance structure, vehicle control device using the conveyance st August 25, 2009
A control information conveyance structure comprises: a cognition-system control platform which recognizes the circumstances of the surroundings of a vehicle and generates a control space; an operation-system control platform which recognizes the circumstances related to the movement of
7577504 Vehicle stability control system August 18, 2009
A vehicle stability control system includes a basic request driving force computing unit, a front and rear wheel load computing unit, a virtual turning radius estimating unit, a target value computing unit, and a vibration damping correction controlling unit. The basic request driving
7477760 Vehicle state sensing system and vehicle state sensing method January 13, 2009
An on-vehicle camera captures an image of an outside visual scene that is outside of a vehicle and outputs image data of the captured image. A wheel speed sensor outputs a measurement signal, which corresponds to a moving speed of the vehicle. An ECU determines a state of the vehicle
7457697 Vehicle integration control system and program November 25, 2008
A vehicle integration control system includes a manager controller and a driving system controller. The manager controller sets a target generation driving force guide value for a driving force outputted from a driving system of a vehicle. The driving system controller controls the d
7328097 Vehicle behavior estimating device and vehicle behavior controlling device February 5, 2008
While a driving torque TD outputted to a driving shaft via an AT from an engine is detected, a road-surface transmitting torque Td_tire is detected based on rotation speeds Vwdr, Vwdl of vehicle driving wheels, a vehicle body speed Vd, and driving torques Tdr, Tdl, all of which are p
7280895 Vehicular kinetic control system October 9, 2007
In a state where a driver sees a region near a vehicle, a finally-requested output-shaft torque is set so that a response is hastened in a deceleration and slowed in an acceleration. Thereby, a vehicle takes a forward descending position in which the front end of the vehicle is desce
7241249 Driving condition control method and system July 10, 2007
In a driving condition control system, a sensing unit is configured to sense a first physical quantity indicative of a rotation of the first rotatable axle assembly and a second physical quantity indicative of a rotation of the second rotatable axle assembly. A correcting unit is con
7169083 Driving condition control method and system January 30, 2007
In a driving condition control system, a sensing unit senses a first physical quantity indicative of a rotation of the first rotatable axle assembly and a second physical quantity indicative of a rotation of the second rotatable axle assembly. A determining unit compares the first and
7113863 Internal combustion engine control system September 26, 2006
A vehicle-supervising electronic control unit (VS-ECU) measures driving torque, which is outputted from an engine to a drive shaft through an automatic transmission. The VS-ECU measures road surface transmission torque based on rotation speeds of driving wheels of a vehicle, vehicle
7079929 Vehicle power steering apparatus capable of suppressing vibration of EPS motor during changes in July 18, 2006
In a power steering apparatus employing an EPS (electrical power steering) motor coupled to a steering mechanism, when vibration of the steering mechanism is produced by twisting of tire rubber due to changes in steering angle, resultant pulsation of the drive current of the EPS motor
6957138 Travel control apparatus of vehicle October 18, 2005
A vehicle travel control apparatus makes an own vehicle automatically follow a vehicle in front by setting a target acceleration/deceleration G0 using travel data expressing behavior of the vehicle, travel environment, driving operations and others. Here, during vehicle travel based on d
6729697 Braking force control device May 4, 2004
A braking force control device, wherein wheel speed is detected and a slope of a braking force with respect to slip speed of the wheel is estimated on the basis of the detected wheel speed, a braking operation by which a brake pedal is depressed is detected and, on the basis of the detec
6640623 Road surface state estimating device November 4, 2003
In order to estimate a braking force gradient in a low slip region including a steady travelling region, there is provided a device comprising a wheel speed sensor for detecting a wheel speed in a predetermined sampling period and outputting time series data of the wheel speed as a w
6474751 Hydraulic circuit having a rotary type pump and brake apparatus for a vehicle provided with the November 5, 2002
In the brake apparatus having a rotary pump, outer and inner rotors of the rotary pump are made of bearing steel and inner and outer teeth portions of the rotors are respectively processed by nitriding hardening or carbo-nitriding hardening. Accordingly, outer circumferential region of
6457785 Brake control apparatus for vehicle October 1, 2002
A characteristic changing device is adopted in the inventive brake control system for the vehicle. The characteristic changing device sets a differential pressure between a first brake hydraulic pressure which is applied to wheel cylinders and a second brake hydraulic pressure which is
6450020 Tire air pressure warning device September 17, 2002
In a tire air pressure warning device, an outside impact such as hydraulic brake pressure is intentionally applied in a pulsating way to a tire when the vehicle substantially stops so as to exert vibration (rotation variation) of the tire axle. Through data processes in analyzing signals
6434457 Apparatus for detecting abnormality of a vehicle sensor and method August 13, 2002
An apparatus for detecting abnormality of a vehicle sensor and a method are provided. The apparatus is capable of preventing erroneous detection of abnormalities of sensors. The apparatus has a grip degree detecting device for detecting grip degree of a wheel of the vehicle with respect
6377885 Braking force control device April 23, 2002
A braking force control device is provided in which wheel speeds of respective wheels of a vehicle are detected. On the basis of detected wheel speeds, a road surface .mu. slope, which is a slope of a coefficient of friction .mu. between a wheel and a road surface, is estimated for each
6364436 Brake control device April 2, 2002
A brake control device has a master cylinder, wheel cylinder, and a solenoid valve disposed in a conduit between the master cylinder and the wheel cylinder. When a brake pedal happens to be returned at sudden braking, at an idle stop or at vehicle stop on a sloping road, the solenoid
6286914 Automotive brake fluid pressure control apparatus September 11, 2001
When it has been determined that a termination condition of brake TRC control has been fulfilled, SM valves 50FL and 50FR and a motor 80 are continuously placed in an ON state, and along with this, SR valves 70FL and 70FR are switched off, and furthermore holding valves 46FL and 46FR
6234588 Brake system for vehicles May 22, 2001
In a brake by wire system, a linear differential pressure control valve is provided to control accurately wheel cylinder pressure. A brake fluid conduit extending from a reservoir is branched out into two conduits, each of which is transmitted to each of right and left wheel cylinders. A
6193331 Vehicular brake system for performing effective brake operations February 27, 2001
A first fluid line couples first and second wheel cylinders. A second fluid line couples third and fourth wheel cylinders. A first pressure increasing unit increases pressure applied to the first and second wheel cylinders to a second pressure level which is greater than a first pressure
6158824 Brake control apparatus for a vehicle December 12, 2000
An operated quantity of a brake pedal is detected based on a signal from a stroke sensor. A starting criterion to start brake assisting is determined with respect to an operational speed of the brake pedal in response to the operated quantity of the brake pedal. An operated-quantity chan
6142581 Hydraulic circuit having a rotary type pump and brake apparatus for a vehicle provided with the November 7, 2000
A hydraulic circuit has a rotary type pump comprising a rotor rotating with a driving shaft and a casing which holds the rotor and the driving shaft. The casing further comprises an inlet port through which fluid is introduced to spaces formed by the rotor, an outlet port through which
6132014 Brake control apparatus October 17, 2000
A turning state of a vehicle is detected to specify an outer side front wheel and an inner side rear wheel of a turning circle. A controlling device controls the brake fluid pressures of wheel cylinders of the specified wheels so that the brake fluid pressure of the wheel cylinder of
6079799 Brake system June 27, 2000
A brake system has wheel cylinders for producing a braking force in wheels using pressurized brake fluid transmitted through a main conduit from a master cylinder, a reservoir for storing brake fluid, a sideslip preventing device for when a sideslip state of the vehicle is detected s
6064931 Control apparatus for vehicle May 16, 2000
A wheel load of each wheel or a vehicle body load is estimated based on a gain of a resonance frequency of a tire, and the estimated wheel load or vehicle body load is applied to a braking control or an acceleration control. Further, a ground contact load of each wheel or the vehicle bod
6030056 On-vehicle brake system February 29, 2000
During a time period of from a time that is immediately before a vehicle being stopped to a time of the vehicle being stopped, a pressure increase gradient in braking fluid pressure which is applied to wheel cylinders of rear wheels is made to be larger than a pressure increase gradient
6027184 Vehicular brake system for performing effective brake operations February 22, 2000
A first fluid line couples first and second wheel cylinders. A second fluid line couples third and fourth wheel cylinders. A first pressure increasing unit increases pressure applied to the first and second wheel cylinders to a second pressure level which is greater than a first pressure
6024420 Brake control apparatus for a vehicle February 15, 2000
A brake control apparatus for a vehicle employs a pressure-amplifying device which reduces a quantity of brake fluid generating a first brake-fluid pressure in a first conduit connected to a master cylinder, and increases second brake-fluid pressure in a second conduit, applied to a
6019438 Braking system for a vehicle February 1, 2000
A vehicle braking system can, for example when the performance of a booster has deteriorated, reduce a brake pedal depressing force required to obtain a sufficient braking force and thereby lighten the burden on the driver. A booster and a master cylinder generate a brake fluid pressure
6007163 Brake control apparatus for a vehicle December 28, 1999
A pressure difference is formed between a master cylinder pressure and a wheel cylinder pressure when a master cut-off valve closes a hydraulic path connecting a master cylinder and a wheel cylinder and a hydraulic pump supplies pressurized brake fluid to the wheel cylinder. After the
5988773 Replacement-period detection method and vehicle control apparatus capable of notifying replaceme November 23, 1999
A total conductance time with respect to each of control actuators is calculated. It is determined whether each of the control actuators has reached a replacement period by determining whether the total conductance time has exceeded a determination value representing an appropriate r
5971089 Automotive traction or travel condition control system with engine power and brake control October 26, 1999
A traction control system for an automotive vehicle is provided which controls engine power and braking force to recover traction of wheels when wheel slippage occurs during acceleration. The traction control system has four traction control modes and four control switching modes for swi
5967626 Braking system for automotive vehicle October 19, 1999
A braking system for automotive vehicles is provided which is designed to minimize the kickback produced in a brake master cylinder and transmitted to a vehicle operator through a brake pedal during braking control or to inform the vehicle operator of generation of the kickback in advanc
5961188 Brake apparatus for a vehicle October 5, 1999
A brake apparatus for a vehicle that increases brake-fluid pressure at a wheel or wheels whereat adjustment of brake-fluid pressure by the brake-fluid pressure adjusting device has not yet been initiated, at a time when braking control, i.e., adjustment of brake-fluid pressure by a b
5947221 Vehicular motion controlling system September 7, 1999
In the present invention, when the wheel speeds of drive wheels are reduced by an engine brake, there are executed drive wheel control for adjusting the braking forces applied to the drive wheels by the engine brake, and driven wheel control for reducing the wheel speeds of driven wheels
5931545 Brake control apparatus for a vehicle August 3, 1999
A braking force increasing device composed of a pump and a control valve continuously increases brake-fluid pressure of wheel cylinders when a brake pedal is operated by a driver and a variation of driver's operation of the brake pedal is within a predetermined range. As a result, even w
5890776 Braking apparatus for automotive vehicles April 6, 1999
When a driver wants to stop a vehicle quickly, the driver depresses a braking pedal strongly. A stop switch is turned on. The deceleration of the vehicle exceeds a predetermined value. In this case, an electronic control unit ECU actuates a pump to send brake fluid from a master cyli
5806010 Kinetic characteristic control system for vehicle September 8, 1998
A kinetic characteristic control system performs a modifying process for modifying a standby control constant so as to, for example, decrease the standby start opening in correspondence with a calculated braking system control decrease amount x (step 230), a shift pattern characteristic
5636907 Automotive brake fluid pressure control apparatus June 10, 1997
Self-suction pumps are driven to take in brake fluid from a master-cylinder side before performing brake TRC control when at a low temperature and moreover when a vehicle is stopped. During driving of these self-suction pumps, pressure-increasing control valves and pressure-reducing cont
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