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Braking force distribution control system

  • US 5,624,164 A
  • Filed: 03/13/1996
  • Issued: 04/29/1997
  • Est. Priority Date: 11/04/1992
  • Status: Expired due to Term
First Claim
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1. A braking force distribution control system for controlling a braking force applied to a pair of rear wheels of an automotive vehicle in a certain relationship with a braking force applied to a pair of front wheels of said automotive vehicle, comprising:

  • a pair of front wheel brake cylinders, each of which is operatively connected to a respective one of said front wheels for applying a braking force to the respective front wheel;

    a pair of rear wheel brake cylinders, each of which is operatively connected to a respective one of said rear wheels for applying a braking force to the respective rear wheel;

    a reservoir for storing brake fluid;

    a master cylinder for pressurizing the brake fluid fed from said reservoir and supplying hydraulic braking pressure to said pair of front wheel brake cylinders in response to depression of a brake pedal;

    an auxiliary power source communicated with said reservoir for pressurizing the brake fluid fed from said reservoir and discharging a power pressure;

    dynamic hydraulic braking pressure regulating means communicated with said auxiliary power source for regulating said power pressure to a pressure regulated in a certain relationship with the hydraulic braking pressure discharged from said master cylinder in response to depression of said brake pedal;

    pressure control valve means disposed in respective hydraulic circuits communicating said regulating means with said rear wheel brake cylinders for controlling the hydraulic braking pressure in said rear wheel brake cylinders; and

    control means for actuating said valve means to control the hydraulic braking pressure in said rear wheel brake cylinders in a certain relationship with the hydraulic braking pressure in said front wheel brake cylinders.

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