The invention relates to a method and a device for adjusting the steering wheel of a motor vehicle. The aim of the invention is to enable an automatic adjustment of the steering wheel in the steering clearance center by ‘stabilizing’ or carrying out a steering hysteresis measurement, a
The invention relates to a method and a device for adjusting the steering wheel of a motor vehicle. The aim of the invention is to enable an automatic adjustment of the steering wheel in the steering clearance center by ‘stabilizing’ or carrying out a steering hysteresis measurement, and the subsequent adjustment of the steering wheel, in a simple, rapid and cost-effective manner. To this end, the invention relates to a method for adjusting the steering wheel of a motor vehicle in the steering wheel clearance center, the method being characterized by the following steps: the floating plates of the vehicle geometry test bed, on which the front wheels of the motor vehicle are arranged, are rotated when the wheels are stopped in order to cause the rotation of steering wheel; the steering wheel angle is determined according to the triggered steering wheel movement; and the steering wheel clearance center is adjusted. The invention shows that reproducible rotations of the steering wheel can be triggered by the floating plates of the vehicle geometry test bed, enabling an automatic adjustment of the steering wheel in the steering wheel clearance center to be carried out rapidly and easily.
대표청구항▼
The invention claimed is: 1. Method of centering the steering wheel of motor vehicles, comprising the following steps: rotation of at least one of the vehicle-geometry test rig's two floating plates, on which the front wheels of the motor vehicle are disposed, while the wheels are stationary so as
The invention claimed is: 1. Method of centering the steering wheel of motor vehicles, comprising the following steps: rotation of at least one of the vehicle-geometry test rig's two floating plates, on which the front wheels of the motor vehicle are disposed, while the wheels are stationary so as to induce rotation of the steering wheel, determination of the steering-wheel angle as a function of the induced steering-wheel movement, and centering of the steering wheel. 2. Method according to claim 1, wherein the steering wheel is centered by way of automated transient oscillation of the steering wheel. 3. Method according to claim 1, wherein the steering wheel is centered by determining the steering-wheel hysteresis and subsequently adjusting the steering wheel to the center of hysteresis. 4. Method according to claim 1, wherein the steering-wheel angle is determined via a steering-wheel balance or the vehicle's steering-angle sensor. 5. Method according to claim 1, comprising the following additional steps: rotation of the vehicle-geometry test rig's floating plates, on which the front wheels of the motor vehicle are disposed, while the wheels are stationary so as to induce at least three different steering-wheel positions and performance of a measurement over one wheel revolution at each of the steering-wheel positions while the wheels are turning, and determination of the vehicle's caster inclination by means of a suitable mathematical process. 6. Method according to claim 1, comprising the following additional steps: attachment of adapter plates to the motor vehicle's wheels, the adapter plates creating a planar measuring surface on the vertical exterior of the wheels, rotation of the vehicle-geometry test rig's floating plates, on which the front wheels of the motor vehicle are disposed, while the wheels are stationary so as to induce rotation of the steering wheel, determination of the vehicle's caster inclination and king pin inclination by way of parabolic regression. 7. Device for carrying out the method according to claim 1, wherein a rig for testing the vehicle's geometry is provided, which has, in the area of the motor vehicle's front axle, two floating plates, i.e. one to accommodate each wheel; both floating plates can be “guided” into the functional state while only one of the two floating plates can be “steered” into the functional state in order to rotate the wheel standing thereon in a defined manner. 8. Device according to claim 7, wherein means for measuring the rotation of the steered and guided floating plate are provided. 9. Device according to claim 7, wherein means for performing an oscillatory movement of the steered and guided floating plate are provided. 10. Device according to claim 7, wherein an evaluating unit for centering the steering wheel and/or adjusting the caster inclination is provided. 11. Device according to claim 7, wherein adapter plates are provided on the vertical exterior of the motor-vehicle's wheels to create a planar measuring surface.
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이 특허에 인용된 특허 (11)
Weise Kenneth A. (Dearborn MI) Lavey Daniel W. (Dearborn Heights MI), Apparatus and method for centering a vehicle steering wheel.
Schrammen Peter (Lohfelden DEX), Method of and apparatuses for eliminating backlash influence when measuring or setting motor vehicle front wheel track.
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