When a brake system on a commercial vehicle, lateral acceleration and/or yaw of the vehicle are monitored and compared to a first predetermined threshold. If the first predetermined threshold is exceeded, a precharge command is sent to the brake system to precharge one or more air chambers by temporarily deactivating a modulator valve and activating an antilock traction relay valve in order to charge the air chambers up to a level permitted by the modulator valve. Upon detecting a panic braking event, a command signal is sent to the brake system to release the precharged air to facilitate braking.

An electronic control brake system for a vehicle, comprising: a pressure sensor connected to an electronic control device for electrically controlling a brake hydraulic pressure and sensing the brake hydraulic pressure generated in a master cylinder, the electronic control device includes a PCB separated from the pressure sensor, and an elastic connecting body of a conductive material provided on the PCB, the pressure sensor includes a sensor housing, a sensing portion provided inside the sensor housing for sensing the brake hydraulic pressure, and a lead portion of inelastic and conductive material and having a first end electrically connected to the sensing portion while passing through the sensor housing and a second end exposed to the outside and electrically connected to the electronic control device.

An electronic control device is provided with a hydraulic control block made of an aluminum alloy, a synthetic-resin component holder configured to hold electronic components such as a pressure sensor, and a printed board for controlling driving of hydraulic control apparatus via the component holder. Electrode terminals of the pressure sensor are connected to the printed board, a terminal configuration part of an electroconductive member, which is inserted into an insertion hole of a body wall of the component holder, is connected to a negative electrode wiring of the printed board, and the outer end edge of an elastic contact part of the electroconductive member is brought into elastic-contact with the hydraulic control block, to establish conduction therebetween. Hence, the electric potential difference between the pressure sensor and the hydraulic control block can be canceled, thus reducing an electrical noise of the pressure sensor.

A valve unit (1, 1) for modulating the pressure in a pneumatic brake system, has a brake pressure inlet (3), a brake pressure outlet (4) and a venting outlet (5), a pneumatically controllable main valve (6, 7) and a pilot valve (8, 9), embodied as a solenoid valve and assigned to the main valve (6, 7), which are arranged in a valve housing (2, 2) subdivided by a plane of division (10), into a main housing (11, 11) and a housing cover (12). For fixing the housing cover (12) on the main housing (11, 11) a bracket element (62.1) is fixed to the main housing (11, 11) and bears with a largely planar pressure plate (63) generating an elastic prestressing force on a planar outside wall (64) of the housing cover (12) oriented parallel to the plane of division (10) of the valve housing (2, 2).

A pressure medium unit, in particular for setting and/or regulating a brake pressure in a vehicle brake system having electronic slip regulation, and to a cap-shaped filter element. Pressure medium units are equipped with a housing block having a duct formed therein that conducts pressure medium, a control element that controls a cross-section of the duct, and a filter element assigned to the control element and fixed in the interior of the duct. According to the present system, the filter element is formed in the shape of a cap, and has on its outer circumference a radially protruding fixing segment having an elastically deformable cross-section. A fixing segment realized in this manner compensates differences in expansion between the components caused by changes in temperature, prevents play at the filter element, and provides a particularly good filter effect.

An electromagnetic valve device having a fluid inlet port (1), which is formed in a valve casing (10), for a fluid to be switched, in particular pneumatic fluid, a working port (2), which is realized in the valve casing, for the fluid and locking component(s) (14), which are moveably guided in the valve casing along an axial direction and which are realized for interacting with a valve seat (26) formed in the valve casing and opening a fluid flow path between the fluid inlet port and the working port and which are moveably realized via fluid switched by means of electromagnetic positioning means (32).

A magnetic valve device includes a valve receiving device and a valve insert of a magnetic valve which is received in the valve receiving device. A high pressure resistance is obtained in one of the modes of embodiment. The magnetic valve device includes either a pressure mechanism configured to press the valve insert against the valve receiving element or a sealing element arranged in a notch in the valve insert or a sealing element arranged between an axial filter and the valve insert.

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 printed circuit board comprises a board main body, a sensor, an external connection pad, and a hollow-structured electrical conductor. The board main body has a top face and a bottom face opposite the top face. The sensor is mounted on one of the top face and the bottom face of the board main body. The external connection pad is provided on the top face or the bottom face of the board main body opposite the sensor. The hollow-structured electrical conductor extends through the board main body and electrically connects the sensor to the external connection pad.

An electromagnetic valve assembly including a magnetic core defining a channel. A valve seat is received by the channel and defines a compartment. An outflow chamber is defined between the magnetic core and the valve seat. The valve seat defines an orifice that fluidly connects the compartment of the valve seat and the outflow chamber. A tappet is axially moveable to open and close the orifice. The valve seat further defines a check valve orifice fluidly connecting the compartment of the valve seat and the outflow chamber. A ball overlies the check valve orifice. A filter seat is secured to said valve seat. A ball guide is disposed in alignment with the check valve orifice and defines a guide passage that receives the ball for guiding the ball toward and away from said check valve orifice. The guide passage is defined by the valve seat and the filter seat.