US 10,414,405 B2 · Method for determining a limit speed for driving

Abstract

A method for determining a limit speed for driving, for a driver at a vehicle's steering wheel, includes a step of estimating a grip potential available at a given instant between a tire of the vehicle and a roadway on which a tire of the vehicle is running. The grip potential is estimated as a function of at least one of: a known influencing parameter, and a measured influencing parameter. The method also includes a step of determining a need for grip as a function of a driving situation of the vehicle and driving characteristics of the driver. The method further includes a step of determining a limit speed for driving as a function of the need for grip and the estimated grip potential. By virtue of the limit speed for driving, it is possible to prevent exceeding an estimate grip potential available.

Claims16

Dependent claims

A method for determining a limit speed for driving, for a driver at a steering wheel of a vehicle, the method comprising steps of:

determining at least one parameter that influences grip potential, the at least one parameter being selected from the group consisting of (a) pressure of a tire, (b) depth of a tread pattern of the tire, (c) water depth on a roadway, and (d) sand depth on the roadway;
estimating, in accordance with the at least one parameter determined in the determining, a grip potential available at a given instant between a tire of the vehicle and a roadway on which the tire is running;
determining a need for grip on an forthcoming route event as a function of a driving situation of the vehicle;
and
based on a function of the need for grip and the estimated grip potential, determining a limit speed for driving on the forthcoming route event.

2 more elements

Dependencies are inferred from the claim text.

Method for determining a limit speed for driving

Life of this patent

Method for determining a limit speed for driving

Life of this patent

Abstract

Claims16