Method and system for detecting and correcting vehicle speed ref

Details Method and system for detecting and correcting vehicle speed ref Method and system for detecting and correcting vehicle speed ref

1993-07-30

1995-02-14

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

180197, 303106, 303109, 303 95, 188181C, R60T 832

Patent

active

053888952

ABSTRACT:
A method and system for correcting an overestimated vehicle reference speed is presented. In one embodiment, speed, slip, and acceleration quantities are computed for at least one wheel of a vehicle. The speed, slip, and acceleration quantities are compared to selected speed, slip, and acceleration thresholds, respectively. A count is incremented if the quantities are consistent with at least one vehicle reference speed being overestimated. The existence of at least one overestimated vehicle reference speed is detected when the count attains a selected threshold. The vehicle reference speeds are modified when the overestimated vehicle reference speed is detected.

REFERENCES:
patent: 5185702 (1993-02-01), Okubo
patent: 5210693 (1993-05-01), Kuwana et al.
patent: 5246279 (1993-09-01), Onaka et al.
patent: 5280432 (1994-01-01), Kuwana et al.

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