Back to results
US 8,515,703 B2Granted
Method for calibrating a wheel speed detection system
AssigneeContinental Teves AG & Co. oHG
InventorAndreas Kircher
Life of this patent
Estimating the term…
Abstract
A method for calibrating a wheel speed detection system, comprising at least one wheel speed sensor and at least one electronic control unit. The at least one wheel speed sensor output signal is evaluated in the electronic control unit and the evaluation is adapted to a distance information item which is acquired from a traveled reference distance.
Claims11
A method for calibrating a wheel speed detection system in a vehicle, the system comprising at least one wheel speed sensor which supplies a wheel speed sensor output signal, and at least one electronic control unit (ECU), the method comprising:
- determining, by the ECU, a sensed distance traveled by the vehicle based on the at least one wheel speed sensor output signal,
- setting, by the ECU, the traveled distance as a reference distance if the following two conditions are satisfied:
- a curvature of the traveled distance does not exceed a predefined curvature limit, the curvature calculated by the ECU based on at least one of satellite navigation information and steering angle information, and
- a negative acceleration or a positive acceleration of the vehicle over the traveled distance does not exceed a predefined acceleration limit;
- and
- calibrating, by the ECU, the wheel speed detection system based on a quotient computed between a navigation distance determined based on signals received by the vehicle, and the reference distance.
3 more elements
Dependencies are inferred from the claim text.