Yaw-compensated vehicle anti-skid system

Details Yaw-compensated vehicle anti-skid system Yaw-compensated vehicle anti-skid system

1984-06-04

1986-06-10

Stoner, Jr., Bruce H.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

303111, B60T 864, B60T 870

Patent

active

045939551

ABSTRACT:
To prevent erroneous operation of a wheel anti-skid or anti-brake lock system which is arranged to compensate for yaw of the vehicle if the wheels at the respective sides of the vehicle operate on portions of a road surface of widely different roughness, e.g. one side of the vehicle on a dry road track and the other side on ice or snow, upon movement of the vehicle through a curve during which a brake is applied, so that the yaw-prevention portion of the system might erroneously recognize movement through the curve as yaw, that is, rotation about a vertical axis through the vehicle, an accelerometer (36') is provided, connected to sense transverse acceleration of the vehicle, e.g. about a vertical axis, and inhibiting application of the yaw-preventing signals to the automatic braking system. Application of the yaw-preventing signals is inhibited by including an AND-gate (36, 35) in the yaw-preventing circuits (31, 30) so that, unless the AND-gate is enabled, signals from the yaw-prevention circuit will not be transmitted.

REFERENCES:
patent: 3797892 (1974-03-01), Leiber
patent: 3966264 (1976-06-01), Mattori et al.
patent: 4005910 (1977-02-01), Leiber et al.
patent: 4033635 (1977-07-01), Montoya
patent: 4254998 (1981-03-01), Marshall et al.
patent: 4288127 (1981-01-01), Leiber et al.
patent: 4309060 (1982-01-01), Leiber et al.
patent: 4489382 (1984-12-01), Jonner et al.

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