Abstract: In brake liquid pressure control unit for an on-vehicle device and its manufacturing method, a lid member constituting at least one reservoir together with a cylindrically shaped hole is formed substantially in a bell shape, the lid member comprising a cylindrical wall projected externally from one of four base surfaces expect mutually opposing first and second base surface of a base block of a rectangular parallelopiped on which the cylindrically shaped hole is formed.

Abstract: An electromagnetic valve unit includes a yoke of magnetic metal. The yoke includes upper and lower walls that are integrally connected by side walls. A slit is provided by the upper wall of the yoke. The slit extends along a longitudinal axis of the yoke between axially opposed ends of the yoke. A plurality of electromagnetic valves are abreast installed in the yoke in such a manner that the yoke constitutes outside magnetic paths of solenoid coils of the valves. Each of the solenoid coils has terminal members that project outward from the yoke through the slit.

Abstract: A brake hydraulic pressure control unit is proposed. It includes housing, a pump mounted in the housing, a reservoir for hydraulic fluid, and hydraulic pressure control valves. The pump is adapted to draw hydraulic fluid in the reservoir and return the thus drawn fluid into a hydraulic circuit. The hydraulic pressure valves are adapted to selectively discharge fluid in the hydraulic circuit into the reservoir, thereby controlling brake hydraulic pressure. The control unit may further include a pulsation damper for muffling noise produced from the pump. The reservoir and the pulsation damper are both separate members from the housing and are mounted to the housing. Thus, the volume of the housing and the capacities of the reservoir and the pulsation damper can be determined independently of each other.

Abstract: A metal member and a resin member, or two resin members are welded or bonded to each other at welding or bonding surfaces thereof which are heated by irradiation of a laser beam, thereby providing an assembly wherein the two members are fluid-tightly bonded at the bonding surfaces. The laser beam is transmitted through a laser transmitting resin, and a laser absorbing material which is in contact with the laser transmitting resin is irradiated with the laser beam, so that the laser absorbing material is heated, whereby the laser transmitting resin and the laser absorbing resin are melted owing to the heat. By moving the spot of the laser beam, portions of the resin members to be heated and melted displace, and the resin materials are melted and then solidify.

Abstract: A hydraulic braking pressure control unit including three or more hydraulic pressure control components, and a holder structure which holds those hydraulic pressure control components, wherein the three or more hydraulic pressure control components are selected from electromagnetically operated hydraulic pressure control valves capable of controlling a pressure of a working fluid in a brake cylinder in a braking system, and pressure detecting devices, to detect respective pressures of the fluid used to control the electromagnetically operated hydraulic pressure control valves. The three or more hydraulic pressure control components include three hydraulic pressure control components which are attached to the holder structure such that one of the three hydraulic pressure control components is spaced from the other two hydraulic pressure control components by substantially the same distance.

Abstract: An electromechanical subassembly has a cover control module equipped with a printed circuit and with first contacts, a mechanical module equipped with second contacts and a support module for securing the cover control module and the mechanical module to the support module. The support module includes first electrical terminals for contacting the first contacts, second electrical terminals for contacting the second contacts and at least one electrical connector for contacting the electromechanical subassembly and the control circuit forming part of the cover.

Abstract: In an electronic control unit, a chassis is provided with a plate portion, and a circuit board is secured to a board-side attaching surface of the plate portion with a predetermined space secured relative to the plate portion. The chassis is further provided with a side wall protruding from the circumferential portion of the other surface of the plate portion and is mounted on a surface of a housing incorporating a device therein, with an end surface of the side wall being seated on the surface of the housing. A bus bar is fixed at a fixing portion thereof to the board-side attaching surface between the plate portion and the circuit board and is connected to a terminal of the device which is taken out from the housing. The bus bar is provided at plural free ends thereof with branch portions at which lead portions extend to be joined at end portions thereof to the circuit board.

Abstract: In a brake apparatus, a pump sucks brake fluid and discharges the brake fluid through a pump discharge conduit. Orifices are connected in series with one another with respect to brake fluid flow discharged from the pump and restrict the brake fluid flow. Because the orifices are formed for restricting brake fluid pulsation, the brake fluid pressure discharged from the pump decreases gradually. Therefore, cavitations are not generated at lower reaches of the orifices because the brake fluid pressure does not decrease rapidly. As a result, the brake apparatus decreases or restricts undesirable noise.

Abstract: A compact controlled braking system including a hydraulic control unit having a first housing and a motor positioned within the first housing and an electronic control unit connected to the hydraulic control unit, the electronic control unit having a second housing, wherein at least a portion of the motor is received within the second housing.

Abstract: A device used for controlling brake fluid pressure includes a plunger pump, for pressurizing brake fluid, and a drive motor for driving the plunger pump. The plunger pump and the output shaft of the drive motor are coupled together so as to transmit power through a cam mechanism arranged in a motor cam chamber. The motor cam chamber is provided with a communication passageway to allow brake fluid seepage to flow from the motor cam chamber to an interior chamber such as a solenoid chamber and/or one or more spring-enclosing chambers. The motor cam chamber is sealed from the exterior and brake fluid seeping into the motor cam chamber is contained within the interior of the device used for controlling brake fluid pressure.

Abstract: The present invention relates to a hydraulic unit whose ventilation system includes a pressure compensating channel (1) that extends transversely to the motor- and pump accommodating bore (2, 11) from the second housing surface (A2) through the motor accommodating bore (2) in the direction of a third housing surface (A3) in the accommodating member (3) positioned diametrically to the second housing surface (A2).

Abstract: A solenoid cover includes a solenoid valve housing chamber housing solenoids of solenoid valves that project outwards from a hydraulic unit and a lower space therebelow. Two labyrinth portions with a fluid passage formed by a plurality of partition plates and communication holes are provided so as to be symmetrical with each other in a left-right direction below the lower space. An air vent communicates with the outside and which serves as a water drain is provided below each labyrinth portion. When a pressure in the solenoid valve housing chamber becomes negative due to a temperature decrease, water flows through the air vent at a high flow rate. Then, the water entering through the upper communication hole flows down along the partition plate toward the lower communication hole, which easily enables the water to be drained to the outside.

Abstract: A housing for a magnet valve has a hollow-body-like shape including a generally cylindrical sidewall having regions of different wall thickness.

Abstract: The present invention relates to a hydraulic unit for slip-controlled brake systems which includes a third row of valves in the accommodating member between a first row of valves having the valve-accommodating bores for the inlet valves and the second housing surface wherein the third row of valves includes at least in one valve-accommodating bore an electric change-over valve which is closed in its basic position and hydraulically linked to the pump-accommodating bore by way of a portion of a suction channel that traverses the first row of valves for connection to the pump-accommodating bore.

Abstract: The invention relates to an electrohydraulic pressure regulating device comprising at least one pressure sensor which has a pressure measuring cell and an electronic evaluating circuit for processing measuring signals obtained at a pressure measuring membrane, wherein the evaluating circuit provided for the pressure sensor is arranged on the circuit carrier of the electronic controller which comprises the evaluating circuit necessary for the actuation of the pressure control valve.

Abstract: In brake liquid pressure control unit for an on-vehicle device and its manufacturing method, a lid member constituting at least one reservoir together with a cylindrically shaped hole is formed substantially in a bell shape, the lid member comprising a cylindrical wall projected externally from one of four base surfaces expect mutually opposing first and second base surface of a base block of a rectangular parallelopiped on which the cylindrically shaped hole is formed.

Abstract: The present invention relates to an ABS pump housing. The ABS pump housing includes: a motor-receiving unit, a pump-receiving unit, an entrance solenoid valve, an exit solenoid valve and an accumulator-receiving unit, wherein the accumulator-receiving unit comprises: a first chamber, a second chamber arranged above the first chamber and having a diameter smaller than that of the first chamber, a first communication port for communicating the first chamber with the pump-receiving unit and a second communication port for communicating the second chamber with an exit solenoid valve-receiving unit in a rear end of the pump housing. A flow path of the first communication port communicating with the pump-receiving unit is readily formed in a large size. The second chamber is formed to communicate with the exit solenoid valve in the exit side so that any additional communication port is not necessary, by which the pump housing is downsized and light-weighted.

Abstract: A compressed air control apparatus for compressed air systems of motor vehicles includes a pressure controller (10) for controlling the pressure, an air dryer (6) for drying the compressed air flowing through the compressed air control apparatus and a multi circuit protection valve (9) for supplying a plurality of circuits (I, II, III, IV, V) with compressed air. The multi circuit protection valve (9) includes at least one solenoid valve (35) including a deaerating connection (15) leading to the atmosphere and a plurality of overflow valves (18). Each of the overflow valves (18) is associated with one of the circuits (I, II, III, IV or V). The overflow valves (18) include a valve body (20), a flow chamber (23), a rear chamber (34), a first effective surface (22), a second effective surface (27), a third effective surface (33) and a spring (31) being located in the rear chamber (34). The valve body (20) separates the flow chamber (23) from the rear chamber (34).

Abstract: A method is provided for measuring a pressure of a hydraulic fluid that is supplied from a hydraulic fluid control device (1) to a operation device (6). The method includes measurement of a first pressure (Pm) and a second pressure (Pa). The first pressure is the pressure of the hydraulic fluid within a first flow path (P3 to P8) connecting a pressure control unit (3) and the operation device. The second pressure is the pressure of the hydraulic fluid within a second flow path (P11, P12) connecting an accumulator (22) and the pressure control unit. Then, a stabilization time (T) is determined. The stabilization time is the time when a pressure gradient per unit time of the second pressure become to be smaller than a predetermined value. Thereafter, a pressure (Pw) of the hydraulic fluid at the operation device is determined based on the first pressure that is measured at the stabilization time or at a time immediately after the stabilization time.

Abstract: A hydraulic unit whose inlet valves are arranged in valve accommodating bores of a first valve row which is spatially separated by way of a pump accommodating bore from a second valve row accommodating the outlet valves, wherein several valve accommodating bores of a third valve row remote from the pump accommodating bore open directly between the second valve row and the braking pressure generator ports into a first housing surface of the accommodating member, and wherein an electric change-over valve closed in its basic position is provided in at least one valve accommodating bore of the third valve row for the hydraulic communication between at least one braking pressure generator port and a suction-side connection of the pump accommodating bore, the hydraulic communication between said changeover valve and the pump accommodating bore being established by way of a portion of a suction channel, the length thereof being determined by the distance between the pump accommodating bore and the third valve row.

Abstract: A hydraulic unit for an electronically controllable brake system of a vehicle includes a housing block with mounting faces for instance for an electric motor and an electronic control unit; a plurality of connections for hydraulically contacting the block; and installation chambers, for pump elements, valves, and damping devices. These damping devices are connected hydraulically downstream to the pump elements, in order to damp operation-caused pressure pulsations and noises. Installation chambers (18i-k) for the damping devices and the installation chambers (18a-h) of the valves extend to a common mounting face of the housing block intended for mounting the electronic control unit. The damping devices protrude past this mounting face.

Abstract: 2.1. Existing valve control devices are set up in housings that feature also the complete yoke in addition to the valve spools. 2.2. In order to reduce the assembly effort required as well as the play of the valve domes on the inside of the spool, yoke arrangements are mounted externally on the housing. 2.3. Such valve control devices are suitable for antilock braking systems, anti-slip control systems, electronic brake servos, and electronic stabilizing programs in motor vehicles.

Abstract: The invention relates to a hydraulic unit for an anti-lock vehicle brake system, having a housing block with a first row of valve receiving chambers for receiving inlet valves, and a second row of valve receiving chambers for receiving outlet valves a pump receiving chamber, whose longitudinal axis extends at least approximately perpendicular to longitudinal axes of the valve receiving chambers and between the longitudinal axes of the valve receiving chambers of the first row and the longitudinal axes of the valve receiving chambers of the second row; low-pressure reservoir receiving chambers, which are disposed on a side, remote from the pump receiving chamber, of the valve receiving chambers of the second row, and whose longitudinal axis extends at least approximately perpendicular to the longitudinal axes of the valve receiving chambers and to the longitudinal axis of the pump receiving chamber; and a separate, direct connection between each valve receiving chamber of an outlet valve and an associated low-

Abstract: The invention relates to a device for making contact between a solenoid and an electronic control unit arranged neighboring a valve block, wherein the solenoid projects away from a side wall of the valve block by a magnetic coil and a magnetic core, contact elements being arranged in an end face region of the solenoid facing towards the valve block in such a way that the contact elements can be directly electrically connected to corresponding contact elements arranged on a wall of the electronic control unit or of the valve block.

Abstract: An electromagnetic valve unit comprises a yoke of magnetic metal. The yoke includes upper and lower walls that are integrally connected by side walls. A slit is provided by the upper wall of the yoke. The slit extends along a longitudinal axis of the yoke between axially opposed ends of the yoke. A plurality of electromagnetic valves are abreast installed in the yoke in such a manner that the yoke constitutes outside magnetic paths of solenoid coils of the valves. Each of the solenoid coils has terminal members projected outward from the yoke through the slit.

Abstract: The invention relates to an electrohydraulic pressure regulating device comprising at least one pressure sensor which has a pressure measuring cell and an electronic evaluating circuit for processing measuring signals obtained at a pressure measuring membrane, wherein the evaluating circuit provided for the pressure sensor is arranged on the circuit carrier of the electronic controller which comprises the evaluating circuit necessary for the actuation of the pressure control valve.

Abstract: An electrohydraulic unit including a hydraulic unit comprising an accommodating member that accommodates electrically actuatable valves and a hydraulic pump, an electric driving device for the pump, and a pressure fluid accumulator fed by the pump and including a media separating element and a sensor device including a receiving element for monitoring the position of the media separating element, and including an electronic unit for the electronic actuation of the valves and the driving device and for receiving electric signals of the sensor device. The sensor device is arranged in the accommodating member or in the electronic unit. An electrical connection is established between sensor device and electronic unit within the unit. This economizes mounting space and enables improved electrical connection.

Abstract: A valve assembly for use in an air brake system is provided. The assembly includes a modulator housing, a valve assembly, and a clamp for holding the valve assembly in an operative position on the modulator housing. One leg of the clamp is fit over retaining bosses on the housing. Another leg of the clamp is bent or advanced toward a retainer that cooperates with a retaining opening on the leg to maintain the clamp in a tensioned state and secure the valve assembly to the modulator housing.

Abstract: An electromechanical brake actuator for a rail vehicle brake, comprising: an actuator housing having a flange; electronic components; an electronic system housing having a flange and detachably connected with the actuator housing, and at least some of the electronic components being in the electronic system housing; at least one vibration damping element of the detachable connection arranged between a flange of the actuator housing and a flange of the electronic housing; and a clearance existing between the electronic system housing and the actuator housing.

Abstract: The present invention discloses a braking device comprising an assembled control mechanism wherein a first plug-in housing unit essentially containing the electronic components on one or more component support members, is plugged together with a block-shaped solid part on a first surface of the solid part for establishing a magnetic and electrical connection, with said solid part including magnetically operated hydraulic valves for the actuation of the brakes and hydraulic lines, and wherein the device comprises pressure sensors for measuring the pressure in the hydraulic lines at appropriate measuring points. The braking device is characterized in that the pressure sensor(s) is/are integrated in the assembled control mechanism.

Abstract: An electro-hydraulic manifold assembly with a plurality of solenoid operated valves disposed on a manifold block and each operable to control pressure from the inlet to a separate outlet. Sensing ports are provided in each outlet with a pressure sensor sealed over the sensing port for providing a signal indicative of the sensed pressure. The pressure sensors are mounted on a lead frame and connected to conductive strips in the lead frame. The lead frame has slots therein which permit the frame to be simultaneously electrically connected by bayonet connection to the terminals on each solenoid valve as the transducers are sealed over the sensing ports and the lead frame attached to the manifold block.

Abstract: The invention discloses an electrohydraulic pressure control device (30) with integrated pressure sensors (16) for sensing the pressure of a fluid in pressure lines (34), wherein several pressure transducers (16) are arranged in a hollow space (10), each comprising a pressure metering diaphragm (32) and an electrically passive transducer (33), and the transducer does not comprise a device for calibration of the electric transducer signal.

Abstract: A valve coil support, in particular for automotive vehicle brake pressure control systems, including at least one valve coil in a frame-shaped wall portion for mounting onto a hydraulic or pneumatic pressure control device which has at least one valve in a fluid channel that is electromagnetically operable by means of the valve coil for pressure fluid control, wherein the frame-shaped wall portion is closed on the frontal end remote from the pressure control device, and wherein at least one component is arranged within the frame-shaped wall portion for connecting the valve coil to an electronic controller. The valve coil is directed to a bottom which is connected to the frame-shaped wall portion and protects the valve coil after assembly of the valve coil support on the pressure control device against the effects of moisture, and wherein the valve coil for installation in the valve coil support is inserted into the frame-shaped wall portion exclusively in the direction of the bottom.

Abstract: A hydraulic unit for an electronically controllable brake system of a vehicle includes a housing block with mounting faces for instance for an electric motor and an electronic control unit; a plurality of connections for hydraulically contacting the block; and installation chambers, for pump elements, valves, and damping devices. These damping devices are connected hydraulically downstream to the pump elements, in order to damp operation-caused pressure pulsations and noises. Installation chambers (18i-k) for the damping devices and the installation chambers (18a-h) of the valves extend to a common mounting face of the housing block intended for mounting the electronic control unit. The damping devices protrude past this mounting face.

Abstract: The present invention relates to a brake pressure control device, more particularly, for anti-lock pressure control and for automatic brake intervention for the purpose of traction slip control and/or driving dynamics control in automotive vehicle brake systems, including accommodating bores for pressure modulation valves arranged in a housing, pressure sensor connecting ports which lead into the housing and into which there are inserted pressure sensors that sense the pressure in a housing-side pressure fluid conduit respectively connected to a brake pressure generator. The pressure sensor connecting port either opens into the pressure fluid conduit between two accommodating bores that are directed into the housing, or is part of the pressure modulation valve.

Abstract: A hydraulic brake device is provided with a master cylinder for supplying pressurized fluid to plural brakes which respectively restrict the rotations of road wheels, a solenoid block mounted on the master cylinder and containing plural solenoid valves, and an ECU provided with a control board for controlling the solenoid valves to distribute pressurized fluid to the plural brakes and also provided with a case for containing the control board therein. The solenoid block and the ECU are constructed to be an integrated structure, and the integrated structure composed of the solenoid block and the ECU is removably mounted on the master cylinder. Further, the ECU is secured to the solenoid block by means of screw bolts which are arranged within an area insider the external form of the control board. Thus, it becomes unnecessary to provide bolt seats for the screw bolt outside the case, so that the case and hence, the ECU can be miniaturized.

Abstract: The present invention relates to a pressure control device, in particular for motor vehicle braking systems, with at least one valve carrier accommodating a pressure control valve, a pressure sensor for detecting the hydraulic pressure in a pressure fluid channel of the valve carrier as well as with an electric module including electric and/or electronic structural members and being connected to the pressure control valve and the pressure sensor by way of electric contacts. The pressure sensor is positioned in a space interposed between the pressure control valve and the electric module, with at least one of the contacts that is connected to the pressure sensor leading through a sensor carrier to the electric module. The sensor carrier is located at least in sections within the space.

Abstract: The invention relates to a hydraulic unit for an anti-lock vehicle brake system, having a housing block with a first row of valve receiving chambers for receiving inlet valves, and a second row of valve receiving chambers for receiving outlet valves a pump receiving chamber, whose longitudinal axis extends at least approximately perpendicular to longitudinal axes of the valve receiving chambers and between the longitudinal axes of the valve receiving chambers of the first row and the longitudinal axes of the valve receiving chambers of the second row; low-pressure reservoir receiving chambers, which are disposed on a side, remote from the pump receiving chamber, of the valve receiving chambers of the second row, and whose longitudinal axis extends at least approximately perpendicular to the longitudinal axes of the valve receiving chambers and to the longitudinal axis of the pump receiving chamber; and a separate, direct connection between each valve receiving chamber of an outlet valve and an associated low-

Abstract: The present invention relates to a hydraulic unit for slip-controlled brake systems, the accumulator accommodating bore (1) thereof opening into the accommodating member (4) between the valve accommodating bores (2, 2′) of the two valve rows (X, Y).

Abstract: The present invention relates to a hydraulic unit whose inlet valves are arranged in valve accommodating bores (2C, 2D) of a first valve row (X) which is spatially separated by means of a pump accommodating bore (5) from a second valve row (Y) accommodating the outlet valves, wherein several valve accommodating bores (2E, 2F) of a third valve row (Z) remote from the pump accommodating bore (5) open directly between the second valve row (Y) and the braking pressure generator ports (B1, B2) into a first housing surface (A1) of the accommodating member (4), and wherein an electric change-over valve closed in its basic position is provided in at least one valve accommodating bore (2E) of the third valve row (Z) for the hydraulic communication between at least one braking pressure generator port (B1 or B2) and a suction-side connection of the pump accommodating bore (2), the hydraulic communication between said change-over valve and the pump accommodating bore (5) being established by way of a portion of a suction

Abstract: An assembly (20) is used with an anti-lock braking system (10) and an associated method. The assembly (20) includes a circuit board (30), a motor (40), a hydromechanical block (50), a lead frame (60), and a plurality of solenoid coils (70). The circuit board (30) integrates the electronics of the anti-lock braking system (10). The motor (40) provides pressurized fluid to the anti-lock braking system (10). The motor (40) is connected to the circuit board (30). The hydromechanical block (50) has a through bore (52). The lead frame (60) has a built-in connector (61) extending through the through bore (52) to the circuit board (30). The plurality of solenoid coils (70) controls flow of the pressurized fluid through the hydromechanical block (50). Each of the plurality of solenoid coils (70) is connected to the lead frame (60) such that the plurality of solenoid coils (70) is electrically connected to the circuit board (30) by the built-in connector (61) of the lead frame (60).

Abstract: An electronic control device includes plural cylindrical coils and a set of a primary yoke and a secondary yoke. The primary yoke is provided at each one side of the plural coils and the secondary yoke is provided at each the other side of the plural coils in axial direction. A case member houses the plural coils, the primary yoke, and the secondary yoke. The primary yoke is connected to the secondary yoke and has lateral portions extending in the axial direction of the plural coils.

Abstract: For bonding magnet valves, inserted into a hydraulic block, to an electronic control circuit for wheel slip control, the invention proposes that wire ends of coils of the magnet valve be fixed to one face end of a winding carrier and bonded by means of slit terminals, which are integral with a stamped grid that carries the electrical and electronic components that form the control circuit.

Abstract: The present invention relates to a hydraulic aggregate for a slip-controlled brake system which includes noise damping chambers integrated in a pump bore, wherein there is a hydraulic connection between the brake pressure generator ports and the noise damping chambers by means of pressure fluid channels that open radially or tangentially into the pump bore and are connected to the valve accommodating bores of the first valve row of an accommodating member in which the inlet valves are received.

Abstract: The invention relates to an electrohydraulic brake device, in particular a brake slip control device (1) for motor vehicles, including one or more electromagnetically actuatable hydraulic valves contained in a valve block (6), having valve domes, which protrude at least partway beyond the valve block (6) in the direction of a valve axis (8) and each engage in a coil opening (14) of an electric coil (12) held by a coil holder (10), and having contact elements (20), which protrude away from the coils (12) and through openings (34) of a top plate (32), in order to electrically activate the coils (12).

Abstract: The invention relates to a block-protected braking system for a vehicle, comprising an electronic controller (22, 24) arranged in a housing (12), a valve block (14) to accommodate solenoid valves for controlling the hydraulic fluid in the braking system, and a pump motor (16) for a pump which delivers hydraulic fluid, with the solenoids (20) of the valves being accommodated in an intermediate body (18) which is arranged between the valve block (14) and the housing (12) of the electronic controller, said intermediate body (18) comprising electric connecting means (34, 38) for connecting the electronic controller with the solenoids (20), and said valve block (14) and said housing (12) of the electronic controller being connected with each other by means of the intermediate body (18).

Abstract: A control device for pressurized fluids includes a valve mechanism actuated by a first device incorporating electromagnets in a first housing, and a second device incorporating a circuit board for controlling the valve mechanism in a second housing. Pins on the first device and sockets on the second device automatically form an electrical plug-type connection when the housings are joined. Each socket is received in a first portion of a through-hole provided in a mount supported on the circuit board such that it extends into a corresponding through-hole in the circuit board. A second portion of each through-hole in each mount has a funnel-shaped guide opening toward the pins. A pressure sensor supported by the circuit board forms a plug-type engagement with a port extending from the valve mechanism when the housings are joined. Contacts extend from the sensor into holes in the circuit board.

Abstract: An electro-hydraulic control unit includes a valve body having a recess formed in a surface thereof and a circumferential wall which extends around the recess. The wall includes at least one widened portion. An electronic control Unit is mounted over the recess. The electronic control unit carries a circuit substrate which extends over the widened portion of the valve body wall such that widened portion of the valve body wall forms a heat for an electronic component carried by the circuit substrate. Additionally, components mounted on upon the circuit substrate, including a motor connector extending into the recess. A pump motor is mounted upon the valve body surface opposite from the electronic control unit. An electrical connector extends from the motor through a bore formed in the valve body and connects to the motor connector mounted upon the circuit substrate.

Abstract: A device for mounting the coil assemblies of solenoid valves in the ECU's housing of an electronically controlled brake system for automobiles is disclosed. When mounting a coil assembly in the ECU's housing using the mounting device of this invention, the coil assembly is received in a cylindrical holder formed at the bottom wall of the ECU's housing. In such a case, two bosses formed on the bobbin of the coil assembly pass through two holes formed at the bottom wall of the ECU's housing, and one of the two bosses is plastically deformed at its lower end projecting outside an associated hole, thus forming a stopper preventing an undesired removal of the coil assembly from the housing. Due to the mounting device of this invention, it is possible to improve work efficiency while mounting the coil assemblies of solenoid valves in the ECU's housing, and so the production cost of the brake systems is reduced.

Abstract: In an automotive anti-lock brake control system, solenoid portions of electromagnetic valves and an electronic control unit for controlling the energizing of an electric motor are accommodated in a cover which is joined to a housing. Provided on the substrate of the control unit are a positive side conductive line having a relay circuit interposed at a position along the length thereof and connected to the motor, and a negative side conductive line connected to the motor and allowed to function as a negative side power supply line for the substrate. The positive and negative side conductive lines are connected to ends of a battery via motor coupler terminals. A capacitor electric component acting as a countermeasure against the noise attributed to the electric motor is mounted on the substrate so as to provide a connection between the positive and negative side conductive lines.