Steering angle adjusting device for a motor vehicle
AssigneeDaimlerChrysler AG
InventorsManfred Muller, Werner Reichelt, Peter Frank, Lutz Eckstein, Micahel Bohringer
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Abstract
The invention relates to a steering angle adjusting device with an operating element for adjusting the steering angle as a function of a corresponding operating element actuating parameter. According to the invention, steering angle adjustment takes place as a function of the operating element actuating parameter with a sensitivity that decreases with decreasing coefficient of friction and/or the maximum adjustable value of the operating element actuating value decreases with a decreasing coefficient of friction and/or an increasing lengthwise speed of the vehicle.
Claims8
A steering angle adjusting device for a motor vehicle having an operating element which adjusts a steering angle as a function of a corresponding operating element actuating variable, wherein the steering angle adjusting device comprises a control unit which adjusts the steering angle as a function of the operating element actuating variable with a sensitivity that decreases as a coefficient of friction between the vehicle and a road decreases.
A steering angle adjusting device for a motor vehicle, comprising:
- an operating element providing an operating element actuating variable;
- a friction determining unit providing a coefficient of friction signal indicating a coefficient of friction between the vehicle and a road;
- a vehicle speed unit providing a vehicle longitudinal speed signal;
- and
- a steering angle adjusting device including a microprocessor which receives said operating element actuating variable, said coefficient of friction signal, and said vehicle longitudinal speed signal, said microprocessor being programmed to calculate a steering angle adjustment as a function of the operating element actuating variable with a sensitivity such that for a given variable value, the steering angle adjustment decreases as the coefficient of friction signal decreases or the vehicle longitudinal speed increases.
A steering angle adjusting device for a motor vehicle having an operating element which adjusts a steering angle of steered wheels as a function of a corresponding operating element actuating variable, and wherein the steering angle adjusting device comprises a control unit which adjusts a maximum value of the operating element actuating variable such that in each case the maximum value decreases with at least one of a decreasing coefficient of friction, an increasing vehicle lengthwise motion, and an increasing vehicle transverse motion;
- whereby a maximum steering angle is decreased.
A process for adjusting a steering angle of a motor vehicle having an operating element, the process comprising the acts of:
- determining a coefficient of friction between the motor vehicle and a road;
- detecting an operating element actuating variable of the operating element;
- and
- adjusting the steering angle of the steered wheels via a control unit as a function of the operating element actuating variable such that for a given variable value, the steering angle is adjusted with a sensitivity that decreases as the coefficient of friction decrease.
A process of adjusting a steering angle of steered wheels of a motor vehicle having an operating element, the process comprising the acts of:
- determining a coefficient of friction, a vehicle lengthwise motion, and a vehicle transverse motion;
- detecting an operating element actuating variable of the operating element;
- and
- adjusting a maximum adjustable value of the operating element actuating variable via a control unit such that in each case the maximum adjustable value decreases with at least one of a decreasing coefficient of friction, an increasing vehicle lengthwise motion, and an increasing vehicle transverse motion;
- whereby a maximum steering angle is decreased.
A steering angle adjusting device for a motor vehicle having an operating element which adjusts a steering angle as a function of a corresponding operating element actuating variable, wherein the steering angle adjusting device comprises a control unit which adjusts the steering angle as a function of the operating element actuating variable with a sensitivity such that for a given variable value, the steering angle is adjusted with a sensitivity that decreases as a coefficient of friction between the vehicle and a road decreases.
Dependencies are inferred from the claim text.