| 摘要 |
A fluid pressure brake system having a common master cylinder for providing control braking pressure for brake cylinders on both the front and rear axles of a vehicle, said brake system being characterized by a fluid pressure regulator effective, subsequently to initiation of supply thereto of control pressure from the master brake cylinder and during low range braking up to a certain degree of said control pressure, for effecting delivery of respective braking pressures to the front and rear axle cylinders at one proportion such that the braking pressure at the front axle cylinders increases responsively to increasing control pressure at a lesser rate than the rate of increase at the rear axle cylinders, said fluid pressure regulator being operative responsively to said control pressure in excess of said certain degree during high range braking for effecting delivery of braking pressures to the front and rear axle brake cylinders at a different proportion such that the increase in said delivered pressure to the front axle cylinders, during progressive increase in control pressure occurs at a rate greater than that at the rear axle cylinders to compensate for inertially induced axle load displacement as the vehicle retardation increases.
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