Abstract: A hydraulic unit (11) is elastically supported by means of elastomer elements (17, 18), through which bolts (15, 16) pass, on two legs (13, 14) of a mounting bracket (12) that extend perpendicular to one another. The leg (14) of the mounting bracket (12) has recesses, open counter to the mounting direction (45) of the unit (11), for receiving the elastomer element (18). With clamping means (34, 35, 36) disposed on the bolt (16), the elastomer element (18) is axially shortened and pressed against both the recess and side faces, located on either side of the recess, of the leg (14) of the mounting bracket (12). With the shortened elastomer element (18), a positive and nonpositive engagement with the leg (14) of the mounting bracket (12) is achieved.

Abstract: A one piece pressure protection valve and manifold. The valve and manifold includes a housing that defines an inlet passage and a plurality of outlet passages. A valve is included in the housing. The valve is interposed between the inlet passage and the outlet passages. The valve is constructed to prevent fluid flow from the inlet passage to the outlet passages when a fluid pressure at the inlet passage is below a predetermined value.

Abstract: A solenoid valve for brake systems is disclosed. This solenoid valve is preferably used as an outflow control NC-type solenoid valve mounted on the oil return line of an electro-hydraulic brake system (EHB). This solenoid valve comprises a hollow valve housing having a radial inlet passage, a plunger movably received in the bore of the valve housing so as to axially move in the bore in opposite directions, and a valve seat set in the bore of the valve housing, with an orifice axially formed in the valve seat such that the orifice is opened or closed by a control ball of the plunger. A radial oil port is formed on the sidewall of the valve seat so as to allow oil from the oil inlet passage of the valve housing to flow into the valve seat, and flow from the valve seat toward the plunger through the orifice.

Abstract: An assembly (20) is used with an anti-lock braking system (10). The assembly (20) includes electronic circuitry (30) for the anti-lock braking system (10), a plurality of solenoid coil devices (70) for the anti-lock braking system (10), and a serial drive component (101). The serial drive component (101) electrically interconnects the electronic circuitry (30) and the plurality of solenoid coil devices (70). The serial drive component (101) takes input from a first number of interconnection points of the plurality of solenoid coil devices (70) and providing output to a second number of interconnection points of the electronic circuitry (30). The first number is greater than the second number.

Abstract: The present invention discloses a braking device comprising an assembled control mechanism (16) wherein a first plug-in housing unit (11) essentially containing the electronic components on one or more component support members (30), is plugged together with a block-shaped solid part (12) on a first surface (17) 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: 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: The invention relates to an electro-hydraulic unit (10) for regulating a brake pressure of a hydraulic vehicle braking system. The unit (10) includes a hydraulic block (12) with a hydraulic pump (20), an electric motor (14) for driving the hydraulic pump (20), and an electronic control unit (16), which is attached to the side of the hydraulic block (12) opposite from the electric motor (14). In order to electrically connect the electric motor (14) to the electronic control unit (16), the invention proposes embodying the electric motor (14) with a tubular insulator (40), which has spreader tabs (46) on a free end, which are pushed apart from each other by electrical blade contacts (42) that are contained in the insulator (40). The spreader tabs (46) that are pushed apart from each other rest without play in a through hole (48) of the hydraulic block (12) and position the blade contacts (42) on the hydraulic block (12). (FIG.

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 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: A system, device, and method for retaining a component within a hydraulic control unit of a vehicular braking system. The system comprises a housing and a component wherein the housing includes an angled lead in formed in an opening of the housing and an outer retaining portion. The component includes an inner portion that is angled to contact the angled lead in at a single point. The component includes an outer portion to contact the retaining portion of the housing when deformed. A deformed portion of the housing retains a device, such as the component.

Abstract: A cup-shaped diaphragm is inserted into a bore formed in a housing. An inlet opening of the bore is closed by a plug-like wall member. A conduit line extends obliquely with respect to an axis of the bore from an annular space formed between a cylindrical wall of the bore and a protruding portion of the plug-like wall member. The annular space is connected to a pressurizing control valve via the conduit line. A chamber, partitioned from the annular space by the cup-shaped diaphragm, serves as a damper chamber which has a diameter substantially equivalent to a diameter of the bore.

Abstract: Master cylinder pressure of either or both of the primary and secondary braking circuits is sensed by a pressure sensor or sensors mounted in a manifold which is installed directly on a brake pressure modulator housing when the modulator is manufactured. The pressure sensors receive power and are grounded through the electronic control unit which is an integral component of the modulator; accordingly, the sensors do not require external electrical connections other than those already provided on the modulator. Since the sensing manifold is installed and tested for leaks when the modulator is manufactured and before the modulator is shipped to the vehicle assembly plant, assembly operations in addition to those required in installation of the modulator in the vehicle braking system are not required.

Abstract: In an electro-hydraulic braking system a housing is provided having at least three discrete housing portions (1, 2, 3), a first portion being adapted to contain electrical drive circuitry for said at least one actuator, the second portion being adapted to contain hydraulic flow passages to and from the electrically operated actuator, and the third portion being adapted to house one or more pressure sensors. On assembly of the housing, electrical contacts from the one or more pressure sensors in the third portion provide a connection between the one or more pressure sensors and the electrical circuitry contained in the first portion, and hydraulic passages extending from the pressure sensors in the third portion provide a connection between one or more pressure sensors and fluid passages in the second portion.

Abstract: The present invention relates to an electromagnetic valve which includes a valve tappet that is axially movably arranged in a valve housing and fastened to a magnetic armature, and a valve piston axially movable in the valve housing, a diaphragm-type pressure fluid passage in the valve piston that is closed or opened by the valve tappet, another unthrottled pressure fluid passage arranged between the valve piston and the valve housing that is closed or opened by the valve piston, pressure fluid channels which open into the valve housing on either side of the valve piston, with both pressure fluid passages closed in the initial position of the electromagnetic valve.

Abstract: The present invention relates to a pressure control device for hydraulic automotive vehicle brake systems with wheel slip control which is especially suited for an operation in the automatic brake intervention, with a first housing for accommodating pressure fluid channels into which valve elements such as pressure control valves and/or pump elements are inserted, with a second housing arranged on the first housing for the accommodation of electric and/or electronic structural elements connected to the pressure control valves, as well as with an electric motor for driving the pump elements. At least one heating element is provided in the first housing and is connected to the electric and/or electronic structural elements in the second housing, and the heating element is disposed in an area of the first housing which includes hydraulic channels for fluid supply to the pump elements which represent a hydraulic flow resistance.

Abstract: Secondary circuit board which carries an acceleration sensor is mounted upon a primary circuit board in an anti-lock brake system control unit. The secondary circuit board is mounted at an angle to the primary circuit board and the acceleration sensor is mounted at an angle relative to the secondary circuit board to align a sensing element contained in the acceleration sensor perpendicular to a direction of vehicle travel.

Abstract: A flexible connection arrangement is provided which is useful in a pressure control device for a braking system, for example, and a pressure control device utilizing the flexible arrangement is described. The flexible connection arrangement eliminates the need of an interrupting conductor, thereby reducing the number of components required in a pressure control device and reducing manufacturing cost, complexity and the size of the device. The connection arrangement includes a flexible, elastic arm which may be integrated with a bobbin of a coil, and a lead wire terminal which may be embedded in an elastic arm and extend therefrom to directly electrically connect with a control circuit board. The flexibility of the elastic arm allows relative movement between the coil and the control circuit board without damaging the electrical connections therebetween.

Abstract: A hydraulic unit for brake systems includes a housing (4), which is provided with an accumulator-receiving bore (1) that is oriented parallel to the axis of the valve-receiving bores (2, 2′) of the two valve rows (X, Y) and the motor-receiving bore (3), wherein the accumulator-receiving bore (1) and the valve-receiving bores (2, 2′) of the first and second valve rows (X, Y) open next to one another into a first end face of the housing (4).

Abstract: A hydraulic control apparatus integrated with motor circuit unit, in which waterproof for preventing liquid such as water from entering an electronic substrate or the like accommodated in a circuit unit housing can be efficiently performed. A hydraulic control apparatus is provided with a hydraulic unit for adjusting brake fluid pressure, and a motor driving circuit unit for actuating a motor for adjusting the brake fluid pressure and integrally assembled with the hydraulic unit. An ECU for controlling the brake fluid pressure is separately provided from the motor driving circuit unit. The motor driving circuit unit is provided with a circuit unit housing constructed by a case portion made of resin and a cover made of resin. The circuit unit housing is divided into an electronic substrate portion for accommodating an electronic substrate, and an operation portion for accommodating a solenoid and a pressure sensor by partition walls provided at the case portion and the cover.

Abstract: A solenoid coil inverted within a flux casing has at least one lead wire extending through a flux ring mounted in an end of the flux casing. The coil is coupled to a circuit board or overmolded lead frame which is positioned adjacent to a valve body with a solenoid valve sleeve extending through the circuit board or lead frame into the coil. A flexible coupling allows the coil to move relative to the circuit board or lead frame.

Abstract: A brake system for vehicles, in particular for motor vehicles, has electrically controlled hydraulic final control elements, integrated in a hydraulic block; a pressure sensor with a plurality of pressure measuring elements for measuring the hydraulic pressure controlled by the individual final control elements; and a control circuit for controlling the final control elements. For the sake of simple and secure mounting of the hydraulic block, pressure sensor and control circuit, the control circuit and pressure sensor are accommodated in a common housing of an add-on electronic control unit (ECU), from whose underside the pressure measuring elements protrude with smaller-diameter plug-in tubes. When the add-on ECU and hydraulic block are installed, and that the housing is mounted on the hydraulic block and solidly joined to it by insertion of the plug-in tubes into the fluid conduits, present in the hydraulic block, in a fluid-tight manner.

Abstract: A method of compensating for a temperature dependence of a coil resistance of at least one second solenoid valve of a hydraulic unit in a vehicle dynamics control is described. The method includes the following steps: determining a first temperature of a coil of at least one first solenoid valve of the hydraulic unit, in particular a reversing valve; determining a second temperature of the hydraulic unit, based on the first temperature, determining a third temperature of the coil of the second solenoid valve, based on the second temperature of the hydraulic unit, taking into account a temperature model of the coil of the second solenoid valve, based on the heat capacity, heat input, and heat dissipation of the coil of the second solenoid valve and/or the hydraulic unit; and compensating for the temperature dependence of the coil resistance of the at least one second solenoid valve, based on the third temperature.

Abstract: An object of this invention is to provide a hydraulic brake control device which has a simple structure for the effective holding of the coil unit, for preventing breakage of the electric connection of the lead wire, and for assuring a long lasting electric connection. The coil holding board 80 has protuberances 83, 84 elastically contacting the bottom portion of the coil unit 52. The board is assembled with the opening side of the cover 60. The coil unit 52 is frictionally engaged with the cover 60 to be held only by the elastic force of the coil holding board 80 or with elastic material 22 inserted between the cover 60 and the top portion of the coil 52.

Abstract: A motor, installed on a first surface of a housing, has a drive shaft normal to the first surface. Two pumps are installed in the housing and driven by the motor for introducing and discharging operation fluid. Two reservoirs are provided in the housing for storing the operation fluid released from a wheel cylinder and supplied to the pump. Each reservoir has an opening at a second surface of the housing and an axis normal to the second surface. Two dampers are provided in the housing for suppressing pulsation flow of the operation fluid discharged from the pump. Each damper has an opening at a third surface of the housing and an axis normal to the third surface. The third surface faces to the second surface so that the drive shaft of the motor is interposed between the second surface and the third surface.

Abstract: The present invention relates to a motor-driven unit for an automotive vehicle brake system comprising a housing body for magnetic valves and a cover located on one side, especially for electrical structural elements used to control the magnetic valves. An attachment means is interposed between the cover and the motor housing in such a manner that the latter structural elements can be attached to the housing body with the same contact force. These features permit rendering the sealing effect more uniform in the area of the electronic unit and in the area of the motor housing. In addition, the result of the arrangement of the attachment means is material economy and a reduced assembly effort.

Abstract: At least one surface contact is formed upon a circuit substrate disposed within a housing for electronic control unit for an anti-lock brake system. The surface contact is electrically connected to a programming port of a microprocessor mounted upon the circuit substrate. A probe is extended into housing and into electrical contact with the surface contact. A algorithm for controlling the operation of the anti-lock brake system is then transferred through the probe and into the microprocessor, where it is stored for use during anti-lock braking operations.

Abstract: The invention relates to a hydraulic modulator having a hydraulic modulator block including a reservoir and a damper; and an electronic control block detachably attached to the surface of the hydraulic modulator block. The reservoir and the damper are overlapped with each other such that a surface of the hydraulic modulator block becomes entirely substantially flat. With this, the hydraulic modulator becomes simple in construction.

Abstract: A hydraulic actuator for a brake system which includes a housing having a hydraulic circuit in which brake oil flows, a control unit being attached on one side of the housing, and similarly, a motor being attached on the other side thereof. A first terminal connected to the motor extends through a hole formed in the housing. A connector for the motor, having an outside portion that is made of an electrical insulating material is fitted into the hole. The inside portion is adapted to retain the first terminal that is electrically connected to the motor. A connector for the control unit, which has and inside portion for retaining a second terminal that is electrically connected to the control unit, and also has an external portion that can be plugged into the connector for the motor. When the motor, the motor connector, and the control unit connector are mated, the first terminal and the second terminal will establish connector between the motor and the control unit.

Abstract: The present invention is directed to a hydraulic pressure control unit, which includes a housing having hydraulic passages defined therein, and a plurality of electromagnetic valves having valve mechanisms disposed in the hydraulic passages and solenoid coil portions mounted on one wall of the housing for actuating the valve mechanisms. The electromagnetic valves include four large electromagnetic valves provided with cylindrical solenoid coil portions, each having a relatively large diameter, and eight small electromagnetic valves provided with cylindrical solenoid coil portions, each having a relatively small diameter. And, two rows of four small electromagnetic valves aligned in a row are located in parallel with each other on the wall of the housing, and two rows of two large electromagnetic valves aligned in a row are located in parallel with the two rows of the four small electromagnetic valves.

Abstract: A brake fluid pressure control apparatus for vehicles comprises an electric motor mounted on one side of a housing, an electronic control box mounted on the other side of the housing, and conductive members extending from the electronic control box. The conductive members are inserted in through holes of the housing, and have motor connection male terminals at tip ends thereof. Motor connection male terminals are accommodated in motor accommodation portions provided in the electric motor. The motor connection female terminals and the motor connection male terminals are engaged for electrical connection.

Abstract: A hydraulic automotive vehicle brake system with wheel slip control includes at least one non-return valve with a closure member that is lifted from its valve seat during evacuation of the brake system. An elastomeric sealing element is arranged between the closure member and the valve seat member.

Abstract: A modulator valve for an ABS system for heavy duty vehicles is disclosed. It uses non flow-through solenoid valve assemblies that simplify the machining and manufacturing costs associated with the present arrangement. This eliminates complex pilot passages and also achieves a quicker acting release of the brakes during normal service braking.

Abstract: There is disclosed a solenoid-supporting device for an antilock brake system by which the vibration and noise created from solenoid valves are attenuated and the heat generated from the solenoid valves are effectively radiated. The solenoid-supporting device comprises: a base plate contacting the bottom surface of a modulator block; a plurality of penetration holes formed at the base plate in order that valve bodies pass through the penetration holes and are combined with solenoids; and a plurality of elastic members which are made by extending from the base plate around the respective penetration holes in order to urge the solenoids to the ECU housing.