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    Anti-skid device for a vehicle braking system
    1.
    发明授权
    Anti-skid device for a vehicle braking system 失效
    用于车辆制动系统的防滑装置

    公开(公告)号：US3666326A

    公开(公告)日：1972-05-30

    申请号：US3666326D

    申请日：1970-08-05

    Applicant: DBA SA

    Inventor： MAROUBY GUY

    IPC: B60T8/72 ,  B60T8/172 ,  B60T8/1763 ,  B60T8/60 ,  B60T8/12

    CPC classification number: B60T8/17633

    Abstract: AN ANTI-SKID DEVICE FOR A VEHICLE BRAKING SYSTEM HAVING AN ELECTRONIC SENSING UNIT SELECTIVELY CONTROLLING THE OPERATION OF AN ACTUATING UNIT FORMED OF TWO COMPONENTS. ONCE THE BRAKING PRESSURE HAS BEEN APLIED TO THE BRAKING SYSTEM, ONE OF THE COMPONENTS IS SELECTIVELY ACTIVATED TO ISOLATE THE BRAKE PEDAL FROM THE BRAKING SYSTEM BETWEEN ONE INSTANT CORRESPONDING TO A PREDETERMINED THRESHOLD OF WHEEL DECELERATION AND ANOTHER INSTANT CORRESPONDING TO THE PEAK VALUE OF THE WHEEL ACCELERATION WHICH FOLLOWS THE WHEEL DECELERATION WHILE THE OTHER COMPONENT IS SELECTIVELY ACTIVATED TO PROGRESSIVELY RELEASE THE PRESSURE IN THE BRAKING SYSTEM TO A CERTAIN VALUE BETWEEN SAID ONE INSTANT CORRESPONDING TO SAID PREDETERMINED THRESHOLD OF WHEEL DECELERATION AND STILL ANOTHER INSTANT CORRESPONDING TO A SECOND PREDETERMINED THRESHOLD OF WHEEL DECELERATION WHICH IS CLOSED TO THE POINT OF ZERO DECELERATION (OR ACCELERATION), THE PRESSURE IN THE ISOLATED BRAKING SYSTEM BEING MAINTAINED TO THE SAID VALUE UNTIL THE INSTANT CORRESPONDING TO THE PEAK VALUE OF THE WHEEL ACCELERATION WHICH FOLLOWS THE WHEEL DECELERATION. IN OTHER WORDS, THE PRESSURE IS RESTORED IN THE BRAKING SYSTEM WHEN THE COEFFICIENT OF FRICTION U DEVELOPED AT THE INTERFRACE BETWEEN THE TIRE AND THE ROAD REACHES A MAXIMUM VALUE.

    Antiskid device for a vehicle-braking system
    2.
    发明授权
    Antiskid device for a vehicle-braking system 失效
    用于车辆制动系统的防盗装置

    公开(公告)号：US3625572A

    公开(公告)日：1971-12-07

    申请号：US3625572D

    申请日：1969-09-17

    Applicant: DBA SA

    Inventor： MAROUBY GUY

    IPC: B60T8/1761 ,  B60T8/04

    CPC classification number: B60T8/17613

    Abstract: An antiskid device for a vehicle-braking system having an electronic sensing unit selectively controlling the operation of an actuating unit formed of two components. Once the braking pressure has been applied to the braking system, one of the components is selectively activated to isolate the brake pedal from the braking system between one instant corresponding to a predetermined threshold of wheel deceleration and another instant substantially corresponding to the end of the wheel acceleration period which follows the wheel deceleration period while the other component is selectively activated to progressively release the pressure in the braking system to a certain value between said one instant corresponding to said predetermined threshold of wheel deceleration and still another instant corresponding to a second predetermined threshold of wheel deceleration which is closed to the point of zero deceleration (or acceleration), the pressure in the isolated braking system being maintained to the said value until the instant substantially corresponding to the end of the wheel acceleration period which follows the wheel deceleration period, i.e. until the moment where the brake foot pedal may become again operative and may generate, due to the deceleration of the wheel, a succeeding operating cycle.

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