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AssigneeITT Industries, Inc.
InventorHelmut Fennel
Estimating the term…
For the generation of a vehicle reference speed to serve as the reference value for the control of brake slip and/or traction slip in automotive vehicles, the rotational behavior of the controlled wheels is measured. The vehicle reference speed is defined by virtue of the rotational behavior of the individual wheels by way of logic combining, selection according to predetermined criteria and/or comparison with predetermined limit values. The wheel rotational behavior of each wheel is evaluated in comparison to the wheel-related vehicle reference speed (V.sub.Ref) according to several predefined criteria is then classified into reference-defining periods. As a function of ascertained reference-defining period, a vehicle reference value (b.sub.fzg) related to the individual wheel is determined which, together with the wheel-related vehicle reference values of the other wheels, determines the vehicle reference speed.
A method for the generation of a vehicle reference speed as a reference value for the control of brake and traction slip in automotive vehicles wherein the rotational behavior of the controlled wheels is measured, and the vehicle reference speed is defined by virtue of the rotational behavior of the individual wheels by way of comparison with predetermined limit values related to individual wheel speed, said method comprising the steps of:
A method as claimed in caim 2, wherein the differentiation of the reference-defining periods is performed in consideration of the amount and the direction of the wheel speed variation (b.sub.Rad).
Dependencies are inferred from the claim text.