Method of improving ABS control behavior
AssigneeContinental Teves AG & Co. oHG
InventorIvica Batistic
Life of this patent
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Abstract
To improve the steerability and driving stability in a curve, in an automotive vehicle furnished with an anti-lock control system, a special control mode is initiated upon identifying a cornering situation. In special circumstances, errors in identification may be unavoidable. To overcome the disadvantageous effects of such an identification in error, in the practice of the invention, re-acceleration (ai) of wheel (i) from which pressure is erroneously relieved is analyzed and brake pressure applied as long as an acceleration threshold value (alimit1,2) is exceeded.
Claims3
A method of improving the control behavior of an anti-lock system of a four-wheel, two-axle vehicle, comprising the steps of:
- measuring individual wheel speeds;
- deriving a vehicle reference speed;
- obtaining criteria for identifying a cornering situation and the direction of the curve from the rotating behavior of the vehicle wheels;
- upon identifying a cornering situation, in lieu of a standard control mode, initiating a special control mode which already in a partial braking range causes a reduction of brake pressure on at least one wheel;
- upon initiation of the special control mode, analyzing re-acceleration of the at least one wheel, to determine an “error in identification”;
- and
- applying brake pressure to the at least one wheel as long as re-acceleration of the at least one wheel exceeds a predetermined threshold value.
Dependencies are inferred from the claim text.