Patent ID: 6510372
Filing Date: 2003-01-21
Classification: B60T

Abstract:
Method of electronic brake force distribution on a two-axle, four-wheel vehicle during cornering, wherein a respective individual wheel reference speed derived from at least one wheel sensor signal is compared with a vehicle reference speed to determine the activation of electronic brake force distribution on a rear wheel, the method comprising the steps of:determining individual wheel speed differences between left and right from a comparison between the individual wheel speeds of right and left front wheel and right and left rear wheels produced from respective wheel sensor signals; taking into account said individual wheel speed differences for the calculation of a compensation speed; adding the compensation speed to the individual wheel speed associated with a curve-inward rear wheel and produced from the wheel sensor signal of said curve-inward rear wheel; and setting the sum of said adding as the individual wheel reference speed of said curve-inward rear wheel, wherein, for the calculation of the compensation speed, a difference of the individual wheel speeds of the rear axle is also ascertained, and a compensation speed is calculated only when the signs of the speed differences of front and rear axles are equal, and wherein the compensation speed is calculated by summing said differences between front wheel speeds and between rear wheel speeds and dividing this sum by a factor k, wherein k is in the range of 1.5