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.

A valve unit (1) for modulating pressure in a compressed air braking system includes a brake pressure input (3), a brake pressure output (4), and a purge output (5), an inlet valve (6) and an outlet valve (7), both configured as a diaphragm valve, and respective precontrol valves (8, 9), which are each configured as a 3/2-way solenoid valve. For effective sound damping of the compressed air emerging into the environment when the outlet valve (7) is open, the valve unit (1) at the purge output (5) has a silencer (75) with a largely cylindrical silencer housing (76) with an inlet opening (77), a calming chamber (78), a large outlet opening (79) and a silencer insert (80.1) arranged upstream of the outlet opening (79) inside the silencer housing (76). The silencer is air-permeable and sound-deadening and attached to the base housing (11) with base walls (83, 84).

A brake pressure modulator (1) of an electronic braking system of a utility vehicle includes pressure control circuits (13, 14) respectively associated with a braking circuit of a vehicle axle, each pressure control circuit (13, 14) comprises a compressed air supply system (4, 5), at least one redundancy control pressure path (21), at least one ventilation path (19, 19a) and a common electronic control unit (2). Said pressure control circuits (13, 14) can be controlled independently from each other by the electronic control unit (2). Each pressure control circuit (13, 14) has an independent ventilation path (19, 19a) and at least one of the pressure control circuits (13, 14) has an independent redundancy control pressure path (21) and at least one other of the pressure control circuits (13, 14) comprises a device (16a) for forced venting in the event of a failure by means of the associated ventilation path (19a).

A hydraulic unit of an electronic control brake system is disclosed. The hydraulic unit of the electronic control brake system includes a modulator block having a plurality of accommodating bores in which a plurality of valves and pressure sensors coupled to a master cylinder to control braking hydraulic pressure supplied towards vehicle wheels are installed. Passages connecting between the accommodating bores are formed in the modulator block, and the passages are formed to be divided into two layers.

A connection device for a pressure sensor includes a supporting unit and a circuit board. The circuit board carries an electronic circuit having at least one of at least one electronic component and at least one electrical component. The supporting unit includes a multi-part main body that is electrically and mechanically connected to the circuit board via at least one soldered connection. The supporting unit further forms an external interface having at least one electrical contact point that enables tapping of at least one electrical output signal of the electronic circuit, and that is electrically connected to a corresponding contact point of the circuit board via an electrical connection. A pressure sensor includes such a connection device, and a method pertains to producing such a connection device.

A valve unit (1.1, 1.2, 1.3) for modulating pressure in a compressed air braking system has an inlet valve (6) configured as a diaphragm valve, an outlet valve (7) configured as a diaphragm valve, and respective precontrol valves (8, 9), which are each configured as a 3/2-way solenoid valve and are arranged in an elongate valve housing (2), which is divided by a division plane (10) that is largely horizontal in the installation position into a base housing (11) and a housing cover (12). The precontrol valves (8, 9) are arranged in the housing cover (12) in the longitudinal direction (13), and the housing cover (12) has a centrally arranged magnet module (20) and two air guide modules (23, 24) adjacent to the magnet module (20) in the longitudinal direction (13) and connected via a single connecting element (45) both to each other and to the base housing (11).

A purpose is to obtain a brake hydraulic pressure controller and a method for manufacturing a brake hydraulic pressure controller that realize suppression of manufacturing cost and downsizing of the brake hydraulic pressure controller and simplification of a manufacturing process.

The brake hydraulic pressure controller 1 has: a base body 10 formed with a channel of a hydraulic fluid; plural hydraulic pressure regulating valves 3 provided in the channel; and plural drive coils respectively provided in the plural hydraulic pressure regulating valves 3 and driving the hydraulic pressure regulating valves 3. One end section 15B that constitutes one end side of the drive coil 11 is adhered to an adhesive surface section that constitutes a contour of the base body 10 via a first adhesive member 17A.

Described is a housing component of a housing of a vehicle pressure-medium-conducting apparatus, including: at least one connector bore having an internal thread for screwing-in a connector element having an external thread for feeding and/or discharging the pressure medium to/from the apparatus; in which a material of the housing component is composed, at least in a region of the connector bore, of a thermoplastic of PPA (polyphthalamide). Also described is a pressure-medium-conducting device of a vehicle, including: at least one housing having at least one housing component, wherein the housing component includes: at least one connector bore having an internal thread for screwing-in a connector element having an external thread for feeding and/or discharging the pressure medium to/from the apparatus; in which a material of the housing component is composed, at least in a region of the connector bore, of a thermoplastic of PPA (polyphthalamide).

The invention relates to a valve unit for modulating the pressure in a pneumatic brake system, comprising a brake pressure inlet, a brake pressure outlet, a vent outlet, a diaphragm inlet valve, a diaphragm outlet valve, and a pilot valve for each diaphragm valve, the pilot valves being arranged in an elongate valve housing (having a main housing and a housing cover. The inlet valve pilot valve and the outlet valve pilot valve are arranged substantially centrally above the diaphragms of the inlet valve and the outlet valve in the housing cover and with the actuation axes of the pilot valves running parallel to the parting plane, and the housing cover includes a central insert which has valve bores and control channels and into which the solenoids and the mechanical components of the pilot valves are inserted, the central insert being encapsulated with a plastic material.

A modular EAB system that reduces the number of individualized modules but provides the desired functionality using a configuration module that is coupled to a plurality of brake system control modules and has a receptacle interface configured to engage a series of modular sections that can be selected from a variety of options to perform dedicated air brake functions. The dedicated air brake functions included comprise brake pipe cutout, equalizing reservoir backup, brake pipe emergency, automatic flow calibration, dead engine regulator, dynamic brake interlock, emergency limiting valve regulation, dynamic brake interlock and emergency limiting valve regulation, 20 pipe back up, and brake cylinder cutout.