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Class 180/6.28 - Electrical


Subclass of Class 180 - Motor vehicles
Definition: Combined steering mechanisms in which the interlocked relation
No. of patents: 54
Last issue date: 07/28/2009


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NumberTitleIssue Date
7565937Electric vehicle
An electric vehicle includes a vehicle body, a front wheel supported on the vehicle body for steering motion in accordance with motion of the vehicle body, a pair of rear wheels supported on the vehicle body for steering motion, a steering unit configured to regulat...
07/28/2009
7410437Planetary drive arrangement
A drive arrangement for a machine includes a first planetary gear set, a second planetary gear set, a third planetary gear set, a first motor, a second motor, and a third motor. The first, second, and third motors are drivingly connected to the first, second, and th...
08/12/2008
7360614Steering control for drive wheels of vehicle
In a vehicle, a pair of left and right drive wheels are linked with a steering input device so that the drive wheels are turned in accordance with a driver's steering input force input by a driver to the steering input device. In this course, a steering assistance f...
04/22/2008
7356391Drive controlling apparatus and method for automotive vehicle
In drive controlling apparatus and method for an automotive vehicle, at least one couple of road wheels constitutes one pair of parallel road wheels with respect to a vehicular width direction, a plurality of motors driving independently and separately each road whe...
04/08/2008
7328758Self-propelled vehicle particularly for making turns with tight turning radii
A self-propelled vehicle particularly for making turns with tight turning radii, comprising a chassis provided with two driving wheels forming at least one driving portion, and which supports a motor kinematically connected to a motion distribution shaft. A function...
02/12/2008
7326141Compact fault tolerant variable cross-drive electromechanical transmission
A transmission drive system (TDS) has two AC induction traction motors, each operatively coupled to two semi-independent coaxial traction shafts, and two AC induction steer motors coaxially mounted on a common steer axis parallel to the coaxial traction shafts. A st...
02/05/2008
7275975Toy vehicle with on-board electronics
A toy vehicle that measures and displays performance characteristics is presented. The toy vehicle may be configured to measure performance of the toy, such as speed or acceleration, and display a value for the performance characteristic. A display for showing the p...
10/02/2007
7277782Control system and method for electric vehicle
An electric traction vehicle is described herein which may be used to provide power to off-board electric power-consuming systems or devices. The electric traction vehicle may provide 250 kilowatts or more of three phase AC power to an off-board electric power consu...
10/02/2007
7255185Driver of electric automobile
There is provided a driving device of an electric car, exactly selecting drive wheels of the electric car in accordance with road circumstances. In the electric car having four or more wheels, all wheels (1 to 4) have driving motors (5 to 8
08/14/2007
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
7118506Actuator for active front steering system
A active steering apparatus includes a housing, an input shaft, an output shaft, and an electrical motor. The electric motor has a stator fixed to the housing and a rotor. A first gear set interconnects the input shaft and the output shaft and includes a sun gear fi...
10/10/2006
7112155Directly driven driving axle having two drive motors
The invention relates to a driving axle for electric motor-driven vehicles provided with at least one electric motor mounted on the axle and drive shafts driven by the motor shaft thereof with a planetary gear step inserted therebetween, connected to the output shaf...
09/26/2006
7110869Hybrid transmission member speed determination, sensor diagnostics and fault recovery
A hybrid powertrain has a transmission including a motor and a sensor for sensing rotation of the transmission output member. Motor speed signals are available from the motor controller. Speed signals representative of output speed are calculated from both the speed...
09/19/2006
7104921Vehicle drive apparatus
A vehicle drive apparatus is provided that comprises first and second drive sources, a main clutch, a subordinate clutch, a drive source selecting section, and a clutch control section. The first and second drive sources output drive forces to a first wheel. The mai...
09/12/2006
7074151Drive configuration for a skid steered vehicle
An electric drive configuration for a skid steered vehicle comprises: a pair of propulsion motors (74a, 74b), each with a motor shaft protruding from both ends of the motor and mounted on the same axis across the vehicle, each being coupl...
07/11/2006
7053568Battery-powered vehicle with AC driven traction and pump motors for mining applications
A battery-powered vehicle for transporting a mined payload or supplies over the roadways existing in or around an underground mine, includes variable voltage, variable frequency drivers that convert DC voltage from a battery into an AC voltage for driving AC inducti...
05/30/2006
7046917Speed controlling device of a motorized cart for a person to ride on
A device of a cart includes a control, a speed regulating potentiometer, a microprocessor, a digital-to-analogue converter, a motor controlling unit, and a switch; the control is angularly displaceable and near to handlebars of the cart; the potentiometer is connect...
05/16/2006
6991059Steering drive for industrial trucks
A steering drive for an industrial truck, comprising a steered wheel which is rotatably supported about a horizontal axis in a bearing component wherein the bearing component is pivotally supported about a vertical axis and has a ring gear, and a steering motor whic...
01/31/2006
6879895Method and handling apparatus for a vehicular electrical system
An apparatus used in a motor vehicle that provides load prioritization, load shedding, start sequencing and support of ultra or super capacitors when coupled to the motor vehicle's electrical power source and distribution network. The apparatus includes circuit Brea...
04/12/2005
6856870Power steering system
A power steering system capable of giving a driver no discomfort even when an incoming current instruction value sharply decreases. The power steering system comprises a controller C for determining a solenoid current instruction value SI on the basis of a current i...
02/15/2005
6845310Power steering system
A power steering system capable of preventing an unnecessary standby flow produced in high speed travel. A controller C determines a basic current instruction value Id based on a current instruction value I1 in accordance with a steering angle detected by a steering...
01/18/2005
6789017Vehicle steering angle position determination method
A system for calculating the actual steering angle position based upon signals received from a relative position steering angle sensor and other vehicle sensors. The system involves calculating a steering angle value based upon a plurality of vehicle models and then...
09/07/2004
6661191Method and apparatus for compensating drive current for an electric motor vehicle steering system
An apparatus and method for a steering system which compensates a drive current for certain variables in a steer-by-wire and electrical power assist steering system. The present invention utilizes a steering wheel angle sensor, a road wheel angle sensor, ...
12/09/2003
6575055Transmission and transaxle casing
A housing for a hydrostatic transaxle is provided wherein the housing has a chamber in which is disposed a hydrostatic transmission and a chamber in which is disposed an axle shaft that is engaged to the hydrostatic transmission. The housing is also provi...
06/10/2003
6570352Control unit for electric power steering apparatus
Provides a control unit for an electric power steering apparatus with improved steering performance by recognizing a turn and a return of a steering wheel in a steering wheel return control, and by employing information on a steering angular velocity in c...
05/27/2003
6283235Zero turn transaxle
A hydrostatic zero turn transaxle is provided with two transmission housings, wherein the housings and the output axle for the hydrostatic transmission can be easily adapted to be use for left-hand or right-hand drive, without the need for changing the ca...
09/04/2001
6152247Zero turn transaxle
A hydrostatic zero turn transaxle is provided with two identical transmission housings, wherein the housings and the output axle for the hydrostatic transmission can be easily adapted to be use for left-hand or right-hand drive, without the need for chang...
11/28/2000
6125953Coupling device between left and right wheels of vehicle
A coupling device to be provided between left and right wheels of a vehicle has an electric motor and a switching mechanism switchable between a starting assistance state in which a torque is transmitted in the same direction of rotation from the electric...
10/03/2000
6105704Coupling device between left and right wheels of vehicle
This is a connecting device (7) to be interposed between left and right wheels (5L, 5R) of a vehicle. It enables to perform a starting assistance control, a cornering control to improve the cornering performance by positively generating a difference rotat...
08/22/2000
6024182Coupling device between left and right wheels of vehicle
This is a connecting device (7) to be interposed between left and right wheels (5L, 5R) of a vehicle. It enables to perform a starting assistance control, a cornering control to improve the cornering performance by positively generating a difference rotat...
02/15/2000
5924512Omnidirectional vehicle and method of controlling the same
An omnidirectional vehicle supports the steering shaft M of the driving wheel 1 serving also as a steering wheel through the shaft stub 8 on the body 7 at the point displaced by a distance S horizontally from the ground contact point of the driving wheel ...
07/20/1999
5487437Coupled differential turning control system for electric vehicle traction motors
A turning control system for an electric vehicle includes a differential filter which receives a signal indicative of a desired vehicle steer angle and generates a pair of signals representative of proportional speed and direction at a left and a right dr...
01/30/1996
5469928Assisted steering system for non-trackbound vehicle
Steering is actively assisted in a turning motor vehicle including a hybrid drive having both an internal combustion engine and a generator unit. The inner and outer wheels are each associated with an individual drive which is controlled in accordance wit...
11/28/1995
5445234Dual drive transmission
A dual-drive electric transmission operated by a generator that may be powered, for example, by an internal combustion engine. Left and right motor networks have a rotation rotor, the motor networks being powered by the generator. A speed control assembly...
08/29/1995
5413187Personal mobility vehicle
A personal mobility vehicle having a very low center of gravity and compact overall size which facilitates travel in narrow hallways and in negotiating sharp turns both indoors and out of doors on smooth and uneven surfaces. The vehicle includes a general...
05/09/1995
5363937Battery operated tracked vehicle
A tracked vehicle (10) propelled by a pair of direct current electric motors (35) operating through a power train to a pair of endless tracks (11). Each power train operates a track drive sprocket (14) through a state of the art torque hub. Electric energ...
11/15/1994
5323866Power steering system
A steering system used in a ground-engaged vehicle having independently motorized steerable wheels, where a steering assistance is provided by generating a differential torque in the motors for producing steering assistance forces, is disclosed. The steer...
06/28/1994
5258912Wheel understeer speed control
An apparatus provides improved vehicle handling during turning maneuvers by providing control of vehicle understeer. The understeer control includes determining a desired turning radius for the vehicle, a corresponding ideal outer to inner wheel speed rat...
11/02/1993
5083625Powdered maneuverable hospital cart
A powdered maneuverable cart with a cart frame including a top load bearing portion and a bottom portion interconnected having hydraulic cylinders for raising the top portion in relation to the bottom portion. Situated above the cart frame top portion is ...
01/28/1992
4790399Steering mechanism for a zero turning radius vehicle
A driving and steering mechanism for a vehicle having a pair of driving wheels includes a steering wheel rotatably mounted to the vehicle and an accelerator foot pedal pivotably mounted to the vehicle. Transmissions associated with the driving wheels incl...
12/13/1988
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