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Method for controlling the start of vehicle

  • US 4,626,040 A
  • Filed: 08/01/1985
  • Issued: 12/02/1986
  • Est. Priority Date: 08/08/1984
  • Status: Expired due to Fees
First Claim
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1. In a vehicle having a brake fluid pressure controller arranged to control brake fluid pressure on following and driving wheels, one independently of the other, a brake fluid pressure retaining device arranged to retain brake fluid pressure for parking by means of said fluid pressure controller and an engine revolution controller, a method for controlling the start of said vehicle comprising the steps of:

  • (a) completely releasing the brake fluid pressure on said following wheel and gradually reducing the brake fluid pressure on said driving wheel in response to a vehicle starting operation;

    (b) holding said driving wheel brake fluid pressure at a value which is obtained at a point of time when the rotation of the driving wheel is detected;

    (c) stopping the acceleration of engine revolution at a point of time when the rotating speed of said driving wheel comes to exceed a predetermined value and then lowering the rotating speed of said driving wheel at least either by increasing said brake fluid pressure on said driving wheel or by reducing the number of revolution of said engine;

    (d) gradually raising the rotating speed of said driving wheel at least either by lowering the brake fluid pressure on said driving wheel or by accelerating the revolution of said engine; and

    (e) completely releasing the brake fluid pressure on said driving wheel by cancelling an ensuing control operation when the rotation of said following wheel is detected at any of said steps (a), (b) and (c).

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