Disclosed are a control method for a hydraulic retarder, and a control system. The method includes: acquiring a slope of a downhill road segment ahead of a vehicle; determining whether an absolute value of the slope is greater than an absolute value of a slope for which a braking force is not required; if so, predicting a required braking force and oil amount for the vehicle at a steady speed; predicting, according to the oil amount, oil filling time and a distance between the vehicle and an origin of the above road segment at the start time of oil filling of the hydraulic retarder; in the case that the actual distance of the vehicle is equal to a predicted distance, starting oil filling; and upon the vehicle reaching the origin of the road segment, starting braking. The present disclosure can lower wear of brake pads and reduce vehicle running costs.

A hydraulic block for a hydraulic unit of a hydraulic power vehicle braking system that includes a slip control. The hydraulic block includes in an upper side a plug connection for a connecting nipple of a brake fluid reservoir. A check valve is integrated into the plug connection.

A brake device for a motor vehicle with two axles in which at least one axle has an electric traction motor for driving and braking at least one wheel arranged on an axle, and in which energy can be recovered by means of the traction motor during braking, each wheel having a wheel brake. The brake device includes a pressure supply having an electric motor-driven pump in the form of a piston-cylinder unit or a rotary pump, which can both build up pressure and reduce pressure, and which is part of a pressure supply device. An open-loop and closed-loop control device controls the traction motor and components of the pressure supply device such that a braking deceleration can be set by closed-loop control individually for each brake circuit, each axle or wheel brakes of an axle, with different braking torques at the respective axles or wheel brakes of an axle.

A housing for a hydraulic unit, in particular a master brake cylinder for a hydraulic motor vehicle brake system, has at least a first and a second separate formed elements which are arranged on at least one side of the housing for a spatially clearly defined mounting of the housing and introduction of clamping forces into an external holding device.

A vehicle brake device includes a brake pedal having a pedal part and a lever part rotatable about a rotational shaft according to an operation of the pedal part, a housing rotatably supporting the lever part and being located in a vehicle compartment of a vehicle and on a partition wall that separates an outside of the vehicle compartment and an inside of the vehicle compartment, and a reaction force generator connected to the housing and the lever part and configured to generate a reaction force on the lever part in accordance with a stroke amount of the brake pedal.

A brake system for a motor vehicle with at least four hydraulically activated wheel brakes. Each of the wheel brakes has a first electrically activated wheel valve which is open when de-energized and a second electrically activated wheel valve which is closed when de-energized, a first electrically activated pressure source, connected to the first wheel valves via a first brake supply line. Arranged in the first brake supply line is an electrically activated circuit isolating valve by which two of the first wheel valves can be hydraulically disconnected from the first pressure source, a second electrically activated pressure source, and a pressure medium reservoir vessel at atmospheric pressure. The circuit isolating valve is designed to be open when de-energized, and the second electrically activated pressure source is connected to the second wheel valves via a second brake supply line. A method for operating the brake system is also disclosed.

An integrated electronic brake apparatus may include: a main control unit configured to receive one or more of an EPB signal, a value from a pedal sensor, a value from a cylinder pressure sensor, or a value from a wheel speed sensor, perform EPB control, drive a main brake valve and a brake motor for main braking of the vehicle according to an operation of a pedal, and drive an additional brake valve for additional braking; an auxiliary control unit configured to receive one or more of the EPB signal, the value from the pedal sensor, or the value from the wheel speed sensor when a driving signal is inputted thereto, perform EPB control, and control the operation of the EPB to perform a pseudo ABS operation; and a connection bus configured to connect the first and second areas mounted in one box, and transfer a signal transmitted/received between the main control unit and the auxiliary control unit.

A sensor assembly includes a fastener body extending from a fastener end to an opposite sensor end along an elongation direction. The sensor end is shaped to be inserted into a sensor port of an air dryer. A sensor substrate includes one or more conductive bodies protruding from the sensor substrate and one or more first conductive pathways coupled with the one or more conductive bodies. The sensor assembly also includes a sensor coupled with the sensor substrate and conductively coupled with the one or more conductive bodies by the one or more first conductive pathways. The sensor is configured to sense a humidity of air flowing through the air dryer. The one or more conductive bodies of the sensor substrate are positioned to engage one or more arcuate or annular conductive pathways in the air dryer in different rotational positions of the fastener body relative to the air dryer.

In a method, which can be performed by a control device for carrying out an emergency braking and/or panic braking of a vehicle, in a first phase, a setpoint vehicle deceleration requested instantaneously by a driver is ignored and a motor of an electromechanical brake booster is operated in a predefined high power mode such that a main brake cylinder pressure in the main brake cylinder is increased; in an intermediate phase, the main brake cylinder pressure is reduced to a setpoint pressure by pumping brake fluid from the main brake cylinder into the at least one wheel brake cylinder and the motor force of the motor is reduced to a setpoint force; and the brake pressure increase in the at least one wheel brake cylinder is continued during a second phase only if the driver requests instantaneously a setpoint vehicle deceleration.

Brake system of a motor vehicle having front wheels and rear wheels having a hydraulic service brake device. The system further includes an electrically actuatable pressure-providing device, wherein the pressure-providing device is connected to the first and second wheel brakes, comprising a parking brake device having electric-motor-actuatable wheel brakes at the rear wheels, and an electronic open-loop and closed-loop control unit, wherein in a hydraulic fallback operating mode of the brake system, in the case of a brake pedal actuation by a vehicle driver, only the first wheel brakes are connected to the master brake cylinder and supplied with pressure by the driver by the master brake cylinder, while the rear wheels are braked by the electric-motor-actuatable wheel brakes.