Braking apparatus for a two-axle vehicle
First Claim
1. In brake apparatus for a vehicle having front and rear wheels, rotational speed sensors at least at the rear wheels, circuit means for evaluating the rotational speeds and determining the rotational deceleration of said rear wheels, and means responsive to the determined deceleration of said rear wheels for controlling the braking forces at said front and rear wheels, the invention wherein said means for controlling said braking forces is responsive to deceleration of said rear wheels below a predetermined value to generate a braking force on the rear wheels which is greater than that on the front wheels so long as said deceleration remains below said predetermined value, said controlling means being responsive to deceleration of said rear wheels in excess of said predetermined value to cancel said greater braking force on said rear wheels and subject both the front and rear vehicle wheels to optimum braking force.
1 Assignment
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Accused Products
Abstract
In a brake apparatus for a two-axle vehicle to obtain uniform wear of the brake linings a conventional ABS control device is so configured that on braking a braking pressure is supplied to the brakes of the rear wheels which is greater than a braking pressure supplied to the brakes of the front wheels for as long as the rotational deceleration of the rear wheels remains below a predetermined value.
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Citations
14 Claims
- 1. In brake apparatus for a vehicle having front and rear wheels, rotational speed sensors at least at the rear wheels, circuit means for evaluating the rotational speeds and determining the rotational deceleration of said rear wheels, and means responsive to the determined deceleration of said rear wheels for controlling the braking forces at said front and rear wheels, the invention wherein said means for controlling said braking forces is responsive to deceleration of said rear wheels below a predetermined value to generate a braking force on the rear wheels which is greater than that on the front wheels so long as said deceleration remains below said predetermined value, said controlling means being responsive to deceleration of said rear wheels in excess of said predetermined value to cancel said greater braking force on said rear wheels and subject both the front and rear vehicle wheels to optimum braking force.
- 8. Brake apparatus for an at least two-axle vehicle having speed sensors at least at the rear wheels of the vehicle and a circuit for evaluating rotational speeds and for determining rotational deceleration of the wheels, the vehicle having front and rear wheel brakes and having a hydraulic control circuit for controlling said brakes of the front and rear wheels and also having an auxiliary brake acting on the rear wheels, means for controlling said auxiliary brake independently of the hydraulic control circuit, and means responsive to actuation of the hydraulic control circuit for automatically actuating said auxiliary brake for as long as the rotational deceleration of the rear wheel remains below a predetermined value.
- 13. Brake apparatus for an at least two-axle vehicle having front and rear wheel brakes rotational speed-sensors at least at the rear wheels of the vehicle and a circuit for evaluating the rotational speeds and for determining the rotational deceleration of the wheels, a hydraulic circuit for controlling said front and rear wheel brakes, and an auxiliary brake at said rear wheels which is likewise actuable by said hydraulic control circuit for as long as the rotational deceleration of said rear wheels remains below a predetermined value.
Specification