A hydraulic power brake system (1) of a wheeled vehicle or for a vehicle unit has a main brake line (20, 21), in which a setpoint brake pressure can be controlled via a brake valve (4) that is operated via a brake pedal (7), and from which an axle brake line or a wheel brake line (46, 49, 50) branches off. Inlet valves and outlet valves and a pilot control valve of the ABS control system for the vehicle unit or for each vehicle axle are respectively disposed together in an ABS modulator block (69), which also includes a temperature sensor (70, 71, 72) for detecting the oil temperature (T) and a heating element (73, 74, 75) for locally heating the hydraulic oil are disposed in each ABS modulator block (69).

A brake cooling system includes a brake cooling duct having an air intake and an outlet and an outlet vectoring unit to vary a direction of airflow from the outlet toward a brake assembly for a wheel as the wheel moves during operation of a vehicle.

A multi-disc brake assembly comprising a disc pack may desirably be liquid cooled (i.e. is wet) to dissipate the substantial heat generated from braking. In conventional assemblies, coolant fluid is generally delivered in a uniform manner to the discs in the disc pack. However, the heat distribution in the disc pack from braking is not uniform. But wear can be significantly increased where an inadequate amount of coolant is delivered, while drag can be increased unnecessarily where an excessive amount of coolant is delivered. In such an assembly, an improved coolant distribution can be obtained by appropriately varying the size of the numerous orifices which may be used to distribute coolant to the disc interfaces from an axial fluid rail provided in a rotating central shaft. Specifically, the orifices decrease in size from the middle to the ends of the disc pack.

Methods for estimating the cooling time of a brake assembly are disclosed. Methods are provided comprising receiving, by the processor, a first temperature of a brake assembly at a first time, receiving, by the processor, a second temperature of a brake assembly at a second time, wherein the second time occurs a fixed period after the first time, determining, by the processor, a temperature decay coefficient () of the brake assembly based on the first temperature and the second temperature and calculating, by the processor, an estimated total time to cool the brake assembly to a predetermined temperature based on the first temperature, the predetermined temperature and .

A brake cooling system includes a brake cooling duct having an air intake and an outlet and an outlet vectoring unit to vary a direction of airflow from the outlet toward a brake assembly for a wheel as the wheel moves during operation of a vehicle.

A motorized vehicle includes an engine, a transmission having an input coupled to the engine and an output, and a controller for controlling at least the transmission. A braking system includes a brake sensor and a brake pack configured to reduce a speed of the vehicle. The brake sensor is disposed in electrical communication with the controller. A main hydraulic pump is operably driven by the engine and an output hydraulic pump is operably driven by the transmission output. A brake coolant valve is disposed in fluid communication with the main hydraulic pump and the output hydraulic pump. The brake coolant valve is controlled between an open position and a closed position. The main hydraulic pump and the output hydraulic pump are fluidly coupled to the brake pack when the brake coolant valve is in its open position.

A multi-disc brake assembly comprising a disc pack may desirably be liquid cooled (i.e. is wet) to dissipate the substantial heat generated from braking. In conventional assemblies, coolant fluid is generally delivered in a uniform manner to the discs in the disc pack. However, the heat distribution in the disc pack from braking is not uniform. But wear can be significantly increased where an inadequate amount of coolant is delivered, while drag can be increased unnecessarily where an excessive amount of coolant is delivered. In such an assembly, an improved coolant distribution can be obtained by appropriately varying the size of the numerous orifices which may be used to distribute coolant to the disc interfaces from an axial fluid rail provided in a rotating central shaft. Specifically, the orifices decrease in size from the middle to the ends of the disc pack.

Provided are a braking temperature control method and system for an electromechanical brake. In the braking temperature control method for an electromechanical brake provided by the present disclosure, an intermediate temperature is obtained based on temperatures acquired by thermistors mounted on a stator winding, and a braking temperature control solution is generated based on a relationship between the intermediate temperature and a preset temperature, to control the heating of an electromechanical braking (EMB) driving motor. Therefore, under a conventional temperature control strategy, the operating environment of the EMB driving motor can be effectively improved, and the EMB efficiency is ensured. In addition, in a high-temperature abnormal operating state of the EMB driving motor, the operating temperature of the driving motor can be effectively controlled through a braking force redistribution strategy, thereby avoiding the braking failure caused by motor overheating.

Disclosed is a method for capturing particles ejected by friction braking elements (2) of a braking system (1, 2) with disk brakes (1) of a vehicle. The braking system is equipped with a capture conduit (3) taking a form adapted to accommodate the friction braking elements (2) and to conduct, while the vehicle is moving, an air flow for cooling the friction braking elements, the conduit integrating a shutter (6) with a plate (6a) positioned upstream of the friction braking elements (2), and a unit (5) for capturing particles ejected by the friction braking elements (2). Furthermore, the shutter (6) is controlled so as to move the plate (6a) between a position of closing the conduit (3), set for vehicle travel speeds lower than a predefined threshold speed Vs, and at least one position of at least partially opening the conduit (3), for vehicle travel speeds higher than the threshold speed Vs.

A braking system for a road vehicle having: a brake disc; a brake caliper provided with at least one hydraulic piston; a hydraulic circuit containing a brake liquid and having: a hydraulic control unit provided with an electrically controlled pump and a delivery pipe, which connects the hydraulic control unit to the hydraulic piston; a return pipe, which is separate from and independent of the delivery pipe and connects the hydraulic piston to the hydraulic control unit; a recirculation solenoid valve, which is interposed along the return pipe and can be controlled so as to enable or forbid the circulation of the brake liquid along the return pipe; and a control unit, which, when the braking system is not used, opens the recirculation solenoid valve and operates the electrically controlled pump so as to create a circulation of the brake liquid through the first delivery pipe and through the return pipe.