Method of estimating vehicle speed

Details Method of estimating vehicle speed Method of estimating vehicle speed

B - Operations, Transporting

60

T

341/73.41

B60T 8/66 (2006.01) B60T 8/172 (2006.01) B60T 8/58 (2006.01)

Patent

CA 1280191

ABSTRACT OF THE DISCLOSURE In estimating a vehicle speed from a wheel speed and comparing the wheel speed with a reference threshold provided on the basis of that vehicle speed to control the supplying of a hydraulic braking pressure to wheel brakes, when the wheel speed is larger than the estimated vehicle speed, a predetermined value is added to that estimated vehicle speed to amend the latter, and conversely, when the wheel speed is smaller than the estimated vehicle speed, a predetermined value is subtracted from that estimated vehicle speed to amend the latter. Thus, the amended values are used as an estimated vehicle speed for controlling the hydraulic braking pressure.

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