A parking mechanism in a vehicle includes a parking gear, a parking piston, a parking rod, a parking pawl, and a locking lever. The parking gear is coupled to a drive shaft. The parking piston is moved between parking and non-parking position. The parking piston has a locking groove. The parking rod is moved in conjunction with movement of the parking piston. The parking pawl engages with and stops engaging with the parking gear in accordance with a move position of the parking rod. The locking lever includes first and second engagement portions. The first engagement portion engages with the locking groove when the parking piston is moved to the parking position. The second engagement portion engages with the locking groove when the parking piston is moved to the non-parking position. The locking lever selectively locks the parking piston in the parking and non-parking position.

A braking system of a work machine includes a pressurized fluid supply, a base valve fluidly coupled to the supply, a proportional control valve fluidly coupled to the supply, and a fluid output configured to be fluidly coupled to a braking system of a trailer. A first fluid path is selectively fluidly coupling the supply to the fluid output via the base valve, and a second fluid path is selectively fluidly coupling the supply to the fluid output via the proportional control valve. The base valve includes a predefined fixed gain and the proportional control valve includes an adjustable ratio.

This invention seeks to replace traditional brakes with a safer and more economical design. The traditional design uses friction to slow a vehicle, while the proposed design uses hydraulic fluid to slow down the motion of a vehicle. The rotor blade, whose design is shown in FIG. 1B, is mounted upon the bearing and is housed with the hydraulic fluid in the housing in FIG. 1A.

Braking system for motor vehicles, with a primary brake control unit comprising at least one electrically actuable wheel valve for each wheel brake, for the purposes of setting wheel-specific brake pressures; a pressure medium storage tank which is at atmospheric pressure; and an electrically controllable pressure provision device for actuating the wheel brakes with a hydraulic pressure chamber, wherein the respective wheel brake is connected or can be connected hydraulically to the pressure chamber; wherein the braking system comprises a simulation unit with a simulator which can be actuated with the aid of a brake pedal, and an auxiliary module, wherein the auxiliary module comprises a hydraulic unit with an, in particular, electrically controllable, pressure provision device for active pressure build-up in at least two of the wheel brakes, and wherein the simulation unit is designed as a separate module.

The invention relates to a disc brake, comprising a brake carrier, a brake caliper, brake shoes, and an actuating piston. The brake carrier has at least one mounting point for mounting on a vehicle. The actuating piston is displaceably accommodated on the brake caliper and is actuatable for carrying out a service brake function of the disc brake. At least one further actuating piston is provided, which in the direction of its longitudinal axis is displaceably accommodated on the brake caliper. For carrying out the service brake function, the at least two actuating pistons are actuatable, and for carrying out a parking brake function, one of the actuating pistons is actuatable. The invention further relates to a disc brake system and a parking brake system.

A braking system for vehicles includes a hydraulic actuator unit operatively connected to at least one braking device, so as to control its actuation by a first hydraulic circuit at a first working pressure. The hydraulic actuator unit includes at least one manual actuator for a user to allow the user to supply the braking system with a braking request. A power generation unit is operatively connected to the hydraulic actuator unit by a second hydraulic circuit at a second working pressure. An actuated brake pump is connected in input to the second hydraulic circuit of the power generation unit to be actuated, and operatively connected, in output, to the first hydraulic circuit for actuation of the at least one braking device. The first and the second hydraulic circuits are supplied with different hydraulic fluids fluidically separate from each other.

A braking system for vehicles includes a hydraulic actuator unit operatively connected to at least one braking device, so as to control its actuation by a first hydraulic circuit at a first working pressure. The hydraulic actuator unit includes at least one manual actuator for a user to allow the user to supply the braking system with a braking request. A power generation unit is operatively connected to the hydraulic actuator unit by a second hydraulic circuit at a second working pressure. An actuated brake pump is connected in input to the second hydraulic circuit of the power generation unit to be actuated, and operatively connected, in output, to the first hydraulic circuit for actuation of the at least one braking device. The first and the second hydraulic circuits are supplied with different hydraulic fluids fluidically separate from each other.

A brake system includes a service brake and a parking brake that brake a vehicle including a lift axle capable of ascending and descending. The brake system further includes a brake blocker device and a controller that controls the brake blocker device. The brake blocker device blocks at least one of supply of compressed air to the service brake and supply of compressed air to the parking brake. The service brake and the parking brake act on the lift axle. The controller actuates the brake blocker device when the lift axle is at a lifted position.

A braking system operable independent of driver input, where the braking system includes a primary brake system, a secondary brake system, a primary controller controlling fluid pressure in the primary brake system, and a secondary controller controlling fluid pressure in the secondary brake system independently of the primary controller. There is also an actuator which is part of the primary brake system, where the actuator is controlled by the primary controller. A reservoir is in fluid communication with both the primary brake system and the secondary brake system, to supply fluid to both the primary brake system and the secondary brake system. The primary controller selectively actuates the actuator to control the fluid pressure in the primary brake system independently of driver input, to provide braking capability to a fully autonomous driving vehicle.

A brake device and an automatic driving vehicle using the same are provided. The brake device includes an electrically controlled brake assembly, a mechanically controlled brake assembly and a shaft. The electrically controlled brake assembly has a main body and a brake control link. The shaft is connected between the electrically controlled brake assembly and the mechanically controlled brake assembly. The mechanically controlled brake assembly includes a pedal, an elbow, a brake link group and a brake pump. The first end is connected to the pedal, and the fulcrum is between the first end and the second end and is located close to the second end. The brake link group is connected between the elbow and the brake control link. The brake pump has an adjustable rod, and one link of the brake link group is connected to the adjustable rod.