Patents Assigned to PCB Controls Ltd.
  • Patent number: 4094555
    Abstract: An anti-skid control method and apparatus for a vehicle wheel equipped with a brake comprising detecting the deceleration of a vehicle wheel equipped with a brake and comparing the value of deceleration with a reference value of minimum deceleration and also with a reference value of maximum deceleration and controlling the brake force based on this comparison so that independently of the braking operation by the driver, the brake force is released from the wheel if the actual deceleration of the wheel exceeds the reference value of maximum deceleration whereas the brake force is reapplied to the wheel if the actual deceleration of the wheel decreases below the reference value of minimum deceleration. The reference value of maximum deceleration is changed during the braking operation in dependence of a value characteristic of the maximum frictional forces transferrable between the wheel and the road surface.
    Type: Grant
    Filed: April 25, 1977
    Date of Patent: June 13, 1978
    Assignee: PCB Controls Ltd.
    Inventors: Peter Cyril Byrne, Desmond F. Moore