An electronic braking system for a vehicle having foundation brakes (137, 138) and a vehicle retarder (129), wherein an electrical braking demand signal (D) is generated from a single brake pedal and wherein the retarder (129) is operated variably or in small steps as the brake pedal movement is increased from a zero or rest position up to a partial point in its movement range which is calculated to give substantially maximum retarder powder based on the total mass of the vehicle. As a result, f...

A braking unit has (1) at least two brake shoes, each with a friction lining; (2) at least one brake disk rotor each of the outer surfaces of the brake disc rotor at least partially forming a friction surface of a ceramic-metal composite material for each friction lining respectively; and (3) at least one brake application device that acts on the brake shoes during braking operation. The friction linings of the brake shoes cover at least 15% of the friction surface of the brake shift rotor. The ...

A braking system includes a brake actuator which is moveable in a first direction to cause a brake applying member to apply a braking force to a member to be braked. A master valve includes a piston assembly which upon operation of a brake operating member, directs the hydraulic fluid under pressure to the brake actuator to apply the brake. A charging valve is operable in first and second states. The master valve piston assembly includes a pair of coupled pistons separated by a chamber. In a fir...

A braking chopper for dissipating braking power away from the direct-current rails of an AC drive system, said braking chopper being an inverter unit (INU) physically similar to those also used as motor supply devices, consisting of upper- and lower-branch controllable semiconductor switches (V1 V6), wherein the inverter is connected by its output connectors to the direct-current rails (DC) via a resistor unit, which resistor unit contains two resistors (R1, R2), of which the first is connected ...

This braking system (S) is adapted to be used with a mechanism having one or several turning members (34), and comprises a toothed wheel (6), connected in rotation with at least one turning member (34) to be braked, and an endless screw (8), driven in rotation by a motor (5) during rotation of the turning member (34), this screw (8) being in permanent engagement with the toothed wheel (6). The screw (8) is contained in a bore of a diameter slightly greater than that of the screw (8).

Disclosed is a redundant braking system for a vehicle. A controller may monitor a status of a hydraulic braking system, and during vehicle travel, automatically switch to a modulated electric braking system which is separate from the hydraulic braking system when the hydraulic braking system fails. The modulated electric braking system may utilize a brake acting on a drive shaft of the vehicle, and an operator-actuated switch may set a mode of the modulated electric braking system to a non-modul...

A braking system having a brake disc and a brake plate. The brake disc and brake plate each include three plateaus that include ramps on each end. The plateaus of the brake disc are configured to substantially mate with the plateaus of the brake plate.

In a vehicle braking system with electronic brake distribution the threshold level of slip of the rear wheels is increased when the front brake temperature is estimated to have increased to a level where brake fade will occur. This allows more braking torque to be applied to the rear wheels to counteract the brake fade at the front wheels. This increase in threshold slip is, however, overridden if the vehicle is cornering, as detected by a lateral accelerometer or a wheel speed difference across...

A brake assembly 12 for use within an electric vehicle 10 and which allows the vehicle 10 to be selectively decelerated in substantially the same manner as is an internal combustion engine type vehicle upon the release of an accelerator pedal member 18 or the depression of a brake member 20.

An incremental braking apparatus and method includes a first rotating member having a plurality of rigid stops spaced circumferentially around an outer cylindrical surface of the first rotating member, and a plurality of flexible stops arranged in a plurality of rows on a stationary member. The flexible stops are selectively movable toward the first rotating member from a disengaged position into an engaged position in which the flexible stops engage the rigid stops to provide a braking action o...