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Class 180/408 - Each wheel steerable


Subclass of Class 180 - Motor vehicles
Definition: Subject matter wherein the vehicle comprises main and auxiliary
No. of patents: 81
Last issue date: 04/05/2011


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NumberTitleIssue Date
7918305All-wheel steering system and vehicle incorporating the same
An all-wheel steering system and vehicle, e.g., riding lawn mower, incorporating the same. The system may include a linkage system that operatively connects the vehicle wheels for simultaneous turning. The system, in one embodiment, includes a power steering unit ha...
04/05/2011
7886864Oversteering feedback response for vehicle having compound steering system
A vehicle with a compound steering system has the ability to reorient both a forward and aft steering axis with respect to a chassis. The compound steering system is controlled in a manner in which one of a forward steering actuator and an aft steering actuator will...
02/15/2011
7878291Rear axle steering system for a mobile crane
A rear axle steering system for a mobile crane includes at least one actively steered rear axle with wheels arranged thereon. A rear axle steering system of this type is provided with a hydraulic steering system including one or more hydraulic steering cylinders of ...
02/01/2011
7740102Steering control device for vehicle
A steering control device can shorten a braking distance during straight-traveling deceleration and can efficiently acquire the acceleration performance during straight-traveling acceleration with a simple control while maintaining the stability of a vehicle by stee...
06/22/2010
7648002Vehicle with coordinated Ackerman and differential steering
The invention relates to a vehicle with coordinated steering. There is a need for a vehicle wherein Ackerman steered front wheels are coordinated with differentially steered and driven rear wheels. Such a vehicle includes Ackerman steerable front wheels and differen...
01/19/2010
7383916All wheel steering with torque shaft linkage
The entire right, title and interest in and to this application and all subject matter disclosed and/or claimed therein, including any and all divisions, continuations, reissues, etc., thereof are, effective as of the date of execution of this application, assigned,...
06/10/2008
7322439Steering apparatus for steerable vehicle
A steering apparatus for a steerable vehicle includes a steering unit, an operating unit, a backup unit, and a control unit. The backup unit selectively connects/disconnects the steering unit and the operating unit. The control unit is operable in two control modes ...
01/29/2008
7315777Vehicle control method and vehicle control apparatus
A target resultant force to be applied to a vehicle body is calculated, the magnitude of a critical friction circle of each wheel is estimated, and a critical resultant force is estimated from the estimated magnitude of the critical friction circle. Subsequently, a ...
01/01/2008
7264079Steerable rear tractor suspension
A steerable rear suspension for a tractor includes a chassis comprising a front end, a rear end, a left side and a right side; an engine mounted on the chassis; a pair of steerable front wheels coupled to the front end, left and right side of the chassis; a left rea...
09/04/2007
7263419Vehicle control
A vehicle control system includes at least one driver input, a supervisor and at least one sub-system controlled by the supervisor. The supervisor assesses the driver input to establish actual driver demand and controls the sub-systems accordingly. As a result intui...
08/28/2007
7225076Map search system
Retrieving an on-map position is executed within a targeted search area that is one of search areas. Search information items are stored for retrieving. Each of the search information items is related to one of the search areas. Area-designating information items ar...
05/29/2007
7213675Method and system for anti-static steering for vehicle steering systems
A method for implementing anti-static steering for vehicle steering systems includes receiving a desired rear wheel angle input and receiving a vehicle speed input. An approved rear wheel angle output is generated using the desired rear wheel angle input and the veh...
05/08/2007
7191865Off road vehicle
There are two basic methods of steering a wheeled vehicle. One method is to turn one or more steerable wheels. The other is to drive one or more left hand wheels independently of one or more right hand wheels. Traditional vehicles address the potential conflict betw...
03/20/2007
7184869Electric vehicle steering/drive control method
In steering control for individually controlling wheel steering angles α1, α2, α3, and α4 of a vehicle in accordance with a condition equation for forming a prescribed mode, one of the condition equation variables is u...
02/27/2007
7129659Stabilizer apparatus for vehicle
In a stabilizer apparatus for a vehicle, an electronic control unit calculates a target current of an electric motor from vehicle speed, steering angle, and lateral acceleration, and increases and decreases actual current such that the calculated target current flow...
10/31/2006
7084773Wakefulness estimating apparatus and method
When a steering angle dakaku is equal to or smaller than ±15° (S22), the steering angle dakaku is integrated to calculate an integrated value dakaku_sum (S24). When the integrated value dakaku_sum is within a set range (S25, S26), a roa...
08/01/2006
7073620Vehicle steering system having a rear steering control mechanism
The vehicle steering system includes front vehicle motive members, rear vehicle motive members, a steering input device, a front steering subsystem, a rear steering subsystem and a rear steering control mechanism. The front steering subsystem is operably coupled to ...
07/11/2006
7065442Automatic slowdown control apparatus for a vehicle
An automatic slowdown control apparatus for a vehicle is disclosed wherein automatic slowdown control can be ended appropriately and automatic slowdown is prevented from being performed excessively on a road of an ascending gradient. The automatic slowdown control a...
06/20/2006
7035726Steering characteristic control apparatus and method for a vehicle
A steering characteristic control apparatus and method for a vehicle is disclosed which can carry out behavior control of the vehicle regarding a steering characteristic and so forth appropriately in accordance with the type of turning and the road surface situation...
04/25/2006
7027903Roll over stability control for an automotive vehicle
A stability control system (24) for an automotive vehicle as includes a plurality of sensors (28–37) sensing the dynamic conditions of the vehicle and a controller (26) that controls a distributed brake pressure to reduce a tire moment so the ...
04/11/2006
6991573Steering actuator of independent steer-by-wire system
A steering actuator of an independent type steer-by-wire system comprises a housing fixed to a vehicle body and an ultrasonic motor. The ultrasonic motor has a stator internally fixed to the housing and a rotator rotating relative to the stator when an electric curr...
01/31/2006
6968266Object detection in adaptive cruise control
A control system 20 for an automotive vehicle 22, such as an adaptive cruise control (ACC) system, is provided including a controller 24. The controller 24 is electrically coupled to a radar system and a navigation system. The detection s...
11/22/2005
6961648System and method for desensitizing the activation criteria of a rollover control system
A method of densensitizing includes determining a relative roll angle, determining when the vehicle is in a transitional maneuver, and when the vehicle is in a transitional maneuver, setting a roll signal for control to the relative roll angle, reducing control effo...
11/01/2005
6941207Steering angular velocity detecting device
Operates steering angular velocity in first steering angular velocity calculating unit and second steering angular velocity calculating unit, by using steering angle signal from steering angle generating unit, and outputs steering angular velocity by switching them ...
09/06/2005
6918638Device for stabilizing a motor vehicle
A vehicle stabilizing device for setting or modifying brake pressures in the wheel brakes of a braking system with diagonally divided braking circuits. To improve a stabilization of the vehicle in the case of understeering by an additional delay, a device for determ...
07/19/2005
6909957Method for controlling yaw and transversal dynamics in a road vehicle
For the purpose of controlling the yaw dynamics and lateral dynamics in a road vehicle with electrically controlled four-wheel steering, in the case of which the setting of the front axle steer angle δv and of the rear axle steer angle δh is ...
06/21/2005
6874800Hospital bed wheel linkage apparatus
A patient support including a linkage assembly providing communication between at least one front wheel and at least one rear wheel. ...
04/05/2005
6866113Forklift with transverse travel system
A vehicle body (2) is provided with a pair of right and left front wheels (3) and a pair of right and left rear wheels (4), these wheels being adapted to be turned through 90 degrees. The front wheels (3) are attached to turning members (...
03/15/2005
6865468Method and apparatus for vehicle stability enhancement system
A vehicle stability enhancement system for a vehicle having at least one vehicle subsystem includes at least one sensor for sensing at least one vehicle parameter, at least one vehicle control system for adjusting the at least one vehicle subsystem wherein the at le...
03/08/2005
6859693Torque variation control device and computer program
A torque variation control device for a vehicle which has a motor providing rotational torque to a drive shaft of a vehicle, a motor control means controlling the motor based on drive torque, and a rotational velocity detection means detecting a rotational velocity ...
02/22/2005
6735507Four wheel steering system and method for trailering
An all wheel steering system for a vehicle comprising a controller having a first input for receiving a signal from a hand wheel position sensor, a second input for receiving a signal from a vehicle speed sensor, and a third input for receiving a signal that varies ...
05/11/2004
6721638AGV position and heading controller
A method and apparatus for controlling the steering of an automatic guided vehicle (AGV) includes simultaneously correcting the vehicle's heading and position errors. The vehicle may include first and second steering control loops that determine the vehicle's positi...
04/13/2004
6686835Rear wheel steering angle control apparatus
A rear wheel steering angle control apparatus is provided with a rear wheel steering angle determining unit and a rear wheel steering mechanism so as to determine a steering angle ratio based upon vehicle speed and perform a rear wheel steering angle cont...
02/03/2004
6640171Motor vehicle with supplemental rear steering having open and closed loop modes
A rear steer control for a motor vehicle considers vehicle velocity in three ranges and provides an out of phase rear steer angle in open loop control within a low velocity range for oversteer assistance of parking and similar vehicle maneuvers, an in pha...
10/28/2003
6625529Apparatus for controlling steering angles of front rear wheels of vehicle
A control apparatus comprises a target steering angle operation unit for operating target steering angles of front wheels and rear wheels, a steering increase/steering return determination unit for determining as to whether steering wheel manipulation is ...
09/23/2003
6571160Rear-wheel steering angle control device
The present invention provides a rear-wheel steering angle control device which is capable of drastically reducing the man-hours required for setting a gain of a target rear-wheel steering angle relative to a front-wheel steering angle. The rear-wheel ste...
05/27/2003
6549835Apparatus for and method of steering vehicle
Unless the steering operation quantity detected by a steering quantity detection unit indicates that the vehicle is advancing almost rectilinearly, an approach disallowed area present toward the outer side of the turning vehicle relative to the front of t...
04/15/2003
6546323Vehicle front/rear wheel steering angle control apparatus and vehicle front/rear wheel steering angle control method
A reference steering angle achieved when the steering operation quantity is sustained at a constant value is calculated in correspondence to the steering operation quantity. A decision is made as to whether the vehicle is in a turn-contracting state, in w...
04/08/2003
6508330Rotating oleodynamic distribution system for the steering of rear axles of vehicles
A hydraulic power steering system for steering rear axles of vehicles comprises a distribution system (10) coupled to a wheel of the rear axle. The distribution system (10) has a core (12) encased in a casing (11) and rotatable to distribute pressurised f...
01/21/2003
6481924Slip-form paver
In a slip-form paver comprising a machine frame (4) including longitudinal beams (8) extending in parallel to the working direction, and transverse beams (18,20), and comprising a chassis (2) including a plurality of truck assemblies (14,15) adjustable in...
11/19/2002
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