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Class 180/447 - With mechanical power assist


Subclass of Class 180 - Motor vehicles
Definition: Subject matter in which there is provided motive means movable
No. of patents: 23
Last issue date: 04/22/2008


NumberTitleIssue Date
7360624Electric power steering apparatus
An electric power steering apparatus includes a speed reducing mechanism for decelerating the rotation of a rotatable shaft in an electric motor and a converting mechanism for converting the output rotation of the speed reducing mechanism into the axial movement of ...
04/22/2008
7303045Motor vehicle steering device
A compact and highly reliable motor vehicle steering device that does not require a spiral flat cable. The motor vehicle steering device includes variable gear ratio system that modifies the transmission ratio of the rotary motions between first steering shaft and s...
12/04/2007
7237647Electric power steering apparatus
An electric power steering apparatus includes a speed reducing mechanism for decelerating the rotation of a rotatable shaft in an electric motor and a converting mechanism for converting the output rotation of the speed reducing mechanism into the axial movement of ...
07/03/2007
7089101Method for assisting a driver when performing driving maneuvers
The invention relates to a method for assisting the driver of a vehicle (10) when performing a driving maneuver, such as a parking or shunting maneuver. In this case, a reference trajectory (16) is determined, along which the vehicle (10) is to ...
08/08/2006
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
6942057Feel control for active steering
A method and apparatus for controlling the feel back torque of a motor provides for receiving a difference between a desired motor position and an actual motor position; filtering the difference into two or more frequency bands; and applying a gain to one or more of...
09/13/2005
6938724Motor vehicle steering device
The invention provides a compact and highly reliable motor vehicle steering device that does not require a spiral flat cable. The motor vehicle steering device includes variable gear ratio system that modifies the transmission ratio of the rotary motions between fir...
09/06/2005
6938722Electric power steering apparatus
An electric power steering apparatus includes a speed reducing mechanism for decelerating the rotation of a rotatable shaft in an electric motor and a converting mechanism for converting the output rotation of the speed reducing mechanism into the axial movement of ...
09/06/2005
6666294Belt driven mechanical boost power steering
A belt driven power steering system for use in a vehicle to eliminate energy waste. The belt driven power steering system includes a belt driven pulley powered by an engine crankshaft in the vehicle; a first gear operably connected to the pulley via a fir...
12/23/2003
6561307Independent suspension steering system
A steering system is provided for a vehicle including a frame. Upper and lower control arms have first end portions that are pivotally supported on the frame at first spaced apart connections. The control arms also each include second end portions that ar...
05/13/2003
6386313Gear ratio variable type steering device
The present invention relates to a gear ratio variable type steering device which includes a variable gear mechanism between a steering wheel and a gear box for varying a gear ratio based on the speed of a vehicle. The variable gear mechanism includes an ...
05/14/2002
6370460Steer-by-wire system
A steer by wire control system having a steering wheel unit responsive to a steering wheel torque command and a road wheel unit responsive to a road wheel unit command is disclosed. A master control unit may be employed to perform processing as necessary....
04/09/2002
6161638Work transfer lock system and method thereof
A work transfer lock system and method includes a first work device, a second work device, a first platform, and a second platform. The system includes a locking device which locks the first platform relative to the second platform. The locking device fur...
12/19/2000
5687811Variable gear ratio steering device
In a variable gear ratio steering device comprising a rack and pinion gear mechanism, the rack of the rack and pinion gear mechanism is provided with tooth pitch distribution for producing a variable rack gain property in relation to a steering input whic...
11/18/1997
5684699Travel characteristic control system for automotive vehicle
An electric control system for controlling a travel characteristic of an automotive vehicle, wherein a driving condition, movement conditions and a travel course of the vehicle are detected and a number of parameters indicative of a resultant of learning ...
11/04/1997
5613572Motor vehicle rack steering system
A rack steering system for motor vehicles has inner track rod joints which are offset transverse to the longitudinal axis of the rack. The inner track rod joints are arranged on separate deflection levers which are, in turn, drive-connected to a central t...
03/25/1997
5597181Steering assembly with idler lever mounted to housing
A vehicle steering system having a rack and pinion housing, a steering shaft assembly, a driven rack assembly, and an idler lever. The housing has a unitary idler lever mount. The steering shaft assembly has a pinion gear located in the housing. The drive...
01/28/1997
5511629Motor vehicle steering system
A control appliance for a motor vehicle steering system provides automatic control intervention (or steering intervention) without corresponding movement of the steering wheel. To this end, the drive connection between the steering wheel and the steered v...
04/30/1996
5482130Variable ratio steering system
Provided is a variable ratio steering system for a vehicle which can maintain the relationship between the steering angle at the steering wheel and the behavior of the vehicle substantially constant without regard to the travelling speed of the vehicle. A...
01/09/1996
5385213Steering assembly for machine with working implement
A machine including a frame with a working implement assembly connected thereto and a steering assembly for steeringly guiding the frame. The frame is movably supported on a first, second and third wheel. The steering assembly is connected to the first an...
01/31/1995
5147004Powertrain-driven electromagnetic rear steering system
A rear steering system in which a rotary mechanical input obtained from one of the rear wheels is controllably applied to a rear steering rack through an electromagnetic clutch apparatus operated by an electronic control unit. The rotary mechancial input ...
09/15/1992
5129476Four-wheel-drive motor vehicle of transversely-disposed engine type
In the case where a steering shaft and an exhaust pipe are arranged in the longitudinal direction of vehicle body across a front axle in the four-wheel-drive motor vehicle of transversely-disposed engine type, such are arranged by utilizing a dead space b...
07/14/1992
5082077Offset steering gear assembly
The steering system for use in an automotive vehicle includes a pinion gear operatively connected to a steering wheel, an elongate rack member meshingly engaging the steering pinion gear and operative to move reciprocally in response to rotation of the st...
01/21/1992
 
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