System Solenoid Valve Detail Patents (Class 303/119.2)
  • Patent number: 11338784
    Abstract: An electronic booster includes an electric motor configured to thrust a piston in a master cylinder, a stroke detection device configured to detect a movement amount of an input member connected to a brake pedal, a rotational angle detection portion configured to detect a rotational angle of a rotational shaft of the electric motor, a control device configured to control driving of the electric motor, and a casing containing a wiring electrically connecting the electric motor and the control device to each other. The stroke detection device includes a first magnet configured to move together with the input member and a first magnetism detection element configured to detect magnetism from the first magnet. The rotational angle detection portion includes a second magnet configured to move together with the rotational shaft of the electric motor and a second magnetism detection element configured to detect magnetism from the second magnet.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: May 24, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Norihisa Fukayama, Hidekazu Tsuchiya, Shinji Shimizu
  • Patent number: 11027716
    Abstract: An integrated solenoid valve and a brake system using the same are disclosed. The integrated solenoid valve includes an armature, an elastic member, a magnet core, an orifice unit, a filter member, a lip seal, a bidirectional passage, and a unidirectional passage. The armature is disposed in a sleeve, moves upward and downward in an axial direction, and opens or closes an orifice of a seat disposed at a lower side thereof. The elastic member provides elastic force to the armature in a closing direction of the orifice. The magnet core provides drive force to the armature in a direction opposite to that of the elastic member. The orifice unit is coupled to a lower side of the seat, and includes not only a hollow hole communicating with the orifice of the seat but also a passage hole. The filter member prevents inflow of foreign materials. The lip seal is inserted between the orifice unit and the filter member, and includes an inclined protrusion.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: June 8, 2021
    Assignee: MANDO CORPORATION
    Inventor: Chung Jae Lee
  • Patent number: 10935450
    Abstract: System for verifying the proper functioning of industrial screwdrivers placed on a test bench that has a plurality of hydraulic brakes (F), with which the screwdriver is associated, suitably controlled by a hydraulic circuit comprising one pump (P), which withdraws the fluid from a reservoir (T) and provides it to a pressure regulating valve (VP), which in turn provides it to the brakes. Each brake is provided with measuring transducers (TR), connected to an electronic driver board (SP). A computer (U) communicates with such card and comprises a suitable driving program stored thereon, the driving program, once an operator has selected the brake to be used for testing the screwdriver, being able to progressively increase the braking capacity of the brakes by adjusting the pressure, until reaching a complete stop of the electronic screwdriver.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: March 2, 2021
    Assignee: ATLAS COPCO INDUSTRIAL TECHNIQUE AB
    Inventors: Massimiliano Cattaneo, Gianmaria Celico Fadini
  • Patent number: 10927975
    Abstract: A solenoid valve includes a magnet assembly, a valve cartridge having a pole core, a valve sleeve connected to the pole core, an armature, and a valve body. The armature is guided in an axially movable manner within the valve sleeve and is coupled to a closing element. The magnet assembly generates a magnetic field via energizing a coil winding. The magnetic field moves the armature counter to a force of a spring. The valve body is positioned within the valve sleeve. A valve seat of the valve body forms a main valve with the closing element that sets a fluid flow between at least one first fluid opening and at least one second fluid opening. A positive connection between the valve sleeve and the valve body is formed to prevent movement of the valve body introduced into the valve sleeve counter to a direction of introduction.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: February 23, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Edgar Kurz, Harald Speer, Volker Edelmann
  • Patent number: 10857985
    Abstract: An electromagnetic valve including a solenoid to generate an electromagnetic force; a cylindrical member at least partially disposed in the solenoid and made from a non-magnetic material; a movable member configured to be moved in the cylindrical member in an axial direction of the valve based on the solenoid, the movable member including a restriction portion on one end side of the movable member; a plunger including one end portion located on the one end side and an opposite end portion located on an opposite end side of the movable member, the plunger being restricted in a movement thereof in a radial direction due to the opposite end portion disposed at the restriction portion. A movable amount of the movable member in the radial direction in the cylindrical member is less than a movable amount of the plunger in the radial direction relative to the restriction portion.
    Type: Grant
    Filed: September 5, 2016
    Date of Patent: December 8, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takatoshi Hattori, Katsuya Iwasaki, Toshihide Ikura
  • Patent number: 10591077
    Abstract: The invention provides a control valve which makes the downsizing and the weight reduction possible and a method of manufacturing the same. The control valve is provided with a valve main body in which a valve chamber is formed in its inner portion, a connection member which is firmly fixed to the valve main body, and a can which is firmly fixed to the valve main body. The valve main body and the can include the same metal material. The connection member is made of a resin. The connection member is provided with a fastening portion for connecting piping parts.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: March 17, 2020
    Assignee: FUJIKOKI CORPORATION
    Inventor: Bunta Narukawa
  • Patent number: 10563633
    Abstract: A device and a method are provided for determining a stroke of an armature of a magnetic valve which has a coil and the armature is displaceable by magnetic force, including: providing at least one reference data set which includes a magnitude of a current through the coil and a magnitude of the magnetic flux in the case of a known magnitude of the stroke; generating a current flow through the coil of the magnetic valve in order to generate a magnetic field for generating a magnetic force on the armature, which magnetic force displaces the armature in the direction for the opening of a closure element coupled to the armature; determining a magnitude of the magnetic flux when the armature abuts against a driver of the closure element; and determining the magnitude of the stroke based upon the determined magnitude of the magnetic flux and the reference data set.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: February 18, 2020
    Assignee: Vitesco Technologies GmbH
    Inventors: Gerd Rösel, Christian Hauser, Markus Stutika
  • Patent number: 10136531
    Abstract: A measurement device can be attached to an outer wall of a movable object or of a stationary object arranged in a flow of air in order to measure physical quantities. The measurement device includes a mounting which has recesses having an opening leading to the outside in which sensors are provided. The mounting comprises a cavity in which a flexible printed circuit is housed, on which a single circuit for controlling the sensors is provided. The device has multiple advantages, in particular that of providing a simple measurement device which offers a system for control and interconnection of sensors that is accessible and less complex while offering numerous advantages.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: November 20, 2018
    Assignee: Airbus Operations S.A.S.
    Inventors: Nicolas Dupe, Olivier Sornique, Gilles Studer
  • Patent number: 10059208
    Abstract: A braking control apparatus for a vehicle, the vehicle including a drive regeneration imparting device (10) and a hydraulic braking system (20), the drive regeneration imparting device being configured to impart a driving force or a regenerative braking force to the vehicle, the hydraulic braking system being configured to impart a hydraulic braking force to the vehicle by adjusting a hydraulic pressure in a wheel cylinder provided in a wheel, the braking control apparatus includes: an electronic control unit (100) configured to, when the hydraulic braking force is reduced based on a reduction in brake operation amount that is an operation amount of a brake operation member, execute a correction process, the correction process being a process of reducing the regenerative braking force that is being imparted to the vehicle by the drive regeneration imparting device.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: August 28, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takahiro Okano, Daisuke Nakata, Yusuke Kamiya
  • Patent number: 10005442
    Abstract: With the use of electric power supplied from a vehicle power source, an electric motor is controlled based on a movement amount of an input rod by a master-pressure control device. A primary piston is thrust through an intermediation of a ball-screw mechanism to generate brake fluid pressure in a master cylinder. The brake fluid pressure generated by the master cylinder is fed-back by an input piston through an intermediation of the input rod to a brake pedal. When system end conditions such as the OFF state of the ignition switch are satisfied, the master-pressure control device executes power-supply interruption control to interrupt the vehicle power source and supply necessary electric power from an auxiliary power source, to thereby continue brake control with electric power stored in the auxiliary power source.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: June 26, 2018
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Shoh Murakami, Yasufumi Konishi
  • Patent number: 9863548
    Abstract: An electromagnetic valve includes a valve compartment inside an end tubular portion of a housing, a valve element provided in the valve compartment and movable to open or close an inlet passage, a support member slidably supporting the valve element, a shaft contacting an end of the valve element to move the valve element, and a pressure release passage extending through a part of the end of the valve element which does not contact the shaft. An inner compartment of the valve element communicates with a drainage passage through the pressure release passage in an open state of the valve element where the inlet passage is open to allow a working fluid flows from an upstream passage to a downstream passage through the inlet passage.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: January 9, 2018
    Assignee: Hamanakodenso Co., Ltd.
    Inventors: Tomoaki Warashina, Takao Ishida, Masashi Sugano
  • Patent number: 9640311
    Abstract: Systems and methods for controlling a solenoid may include measuring a current flowing through a solenoid, and detecting characteristics of the current flowing through the solenoid. The characteristics may be used to determine a state of the solenoid. Characteristics of the current comprise may include local extrema of the current, rate of change of the current, and/or discrete values of the current. The solenoid may comprise a bistable device.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: May 2, 2017
    Assignee: Goodrich Corporation
    Inventors: Michael Kordik, Paul Summers
  • Patent number: 9561808
    Abstract: A method for controlling a magnetic rail brake device of a rail vehicle, wherein the device contains at least one solenoid of a magnet rail brake, said solenoid being fed from a source of electrical energy via an electrical connection, wherein upon a magnet rail brake activation signal the electrical connection between the source of electrical energy and the at least one solenoid of the magnet rail brake is established and upon a magnet rail brake de-activation signal same is disconnected, in order to excite the at least one solenoid to generate a magnetic force or de-excite said at least one solenoid.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: February 7, 2017
    Assignee: KNORR-BREMSE GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNG
    Inventors: Henry Lehmann, Peter Schlager, Bernhard Gross
  • Patent number: 9500240
    Abstract: A disk brake (1) including a connector portion (35) provided at a housing (30). The connector portion (35) includes supply terminals (131) for supplying power to a motor (32). The supply terminals (131) of the connector portion (35) and motor terminals (32C) of the motor (32) are connected to each other via bus bars (130) made of metallic plate. Further, the bus bars (130) are held in a loosely fitted state on another-side surface (138B) of a plate-like portion (138) of a support member (135) attached to the housing (30).
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: November 22, 2016
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takaaki Fuse, Satoru Tsurumi, Jun Watanabe, Takayasu Sakashita
  • Patent number: 9346447
    Abstract: Disclosed is a solenoid valve for a brake system, the solenoid valve including a magnet core that is provided in a cylindrical shape, is installed in a bore of a modulator block, and has a through-hole opening in a lengthwise direction thereof and a radial direction passage communicating with the through-hole; an armature that is installed at one end of the magnet core so as to be reciprocated; a valve seat that is provided at the other end of the magnet core and has an orifice; a plunger that is inserted into the through-hole and performs a sliding motion by the armature to open and close the orifice; a sleeve that is fixed to the bore while accommodating the armature and the magnet core; and a return spring that is provided to apply an elastic restorative force to the plunger to open the orifice, wherein a passage hole is provided in a spiral shape along the through-hole at an inner circumferential surface of the magnet core to discharge air between the magnet core and the plunger and air between the magnet
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: May 24, 2016
    Assignee: Mando Corporation
    Inventor: Chung Jae Lee
  • Patent number: 9343853
    Abstract: A clip installation seat of a holder, which is installed to an outer surface of a yoke, includes a recessed slope surface that is sloped in such a manner that an amount of recess of a radially-inner-side section of the recessed slope surface is larger than an amount of recess of a radially-outer-side section of the recessed slope surface. A clip includes an engaging hole, which is press fitted to an outer peripheral surface of a positioning projection projected from the outer surface of the yoke, and a radially-inner-side engaging portion, which resiliently contacts the outer peripheral surface of the positioning projection. The clip includes a radially-outer-side engaging portion that is configured into a form of a loop and is placed at a radially-outer-side area of the clip. The radially-outer-side engaging portion resiliently contacts the recessed slope surface.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: May 17, 2016
    Assignee: DENSO CORPORATION
    Inventors: Keita Okada, Masahiro Tomita
  • Patent number: 9267610
    Abstract: A hydraulic pressure control device includes: a hydraulic pressure unit, in which a solenoid valve for hydraulic pressure control is assembled with a hydraulic pressure block; and an electronic control unit, which includes a circuit board having a drive control circuit of the solenoid valve and stored inside a resin case, wherein a solenoid coil is fit onto the main body of the solenoid valve fixed to the hydraulic pressure block of hydraulic pressure unit, and wherein the solenoid coil is elastically pressed against and fixed to the hydraulic pressure block by a coil pressing arm integrally formed with the resin case.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: February 23, 2016
    Assignees: ADVICS CO., LTD., DENSO CORPORATION
    Inventors: Masato Ogawa, Ayumi Yamamura, Masayuki Hijikata, Kouji Yanai
  • Patent number: 9260100
    Abstract: A pressure control reservoir for a vehicle brake system is disposed in a hydraulic line extending from a master cylinder to a wheel cylinder through a pump. The pressure control reservoir includes a check valve which consists of a valve seat and a valve. The check valve is closed when an excessive pressure of brake fluid produced by the master cylinder. The valve is stationary. The valve seat is moved in response to an elevated level of the pressure of brake fluid into engagement with the valve, so that the check valve is closed. With these arrangements, the check valve is closed before a piston starts to move to change the volume of a reservoir chamber, thus permitting the volume of the brake fluid required to close the check valve to be decreased, which minimizes the uncomfortable feeling given to a driver of the vehicle when actuating the brakes.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: February 16, 2016
    Assignees: DENSO CORPORATION, ADVICS CO., LTD.
    Inventor: Takashi Murayama
  • Patent number: 9222595
    Abstract: A hydraulically controlled storage chamber valve includes a closing element that is biased via a first compression spring. The closing element seals a valve seat in a valve body. A tappet protrudes through a bushing in the valve body and is movable by an accumulator piston that is loaded by a second compression spring that is configured to push the closing element out of the valve seat when a specified force ratio is present between spring bias forces and a hydraulically acting force. The tappet is fastened in a region of the bushing such that the tappet is movable in a longitudinal direction and lies flush with a face of the accumulator piston while moving.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: December 29, 2015
    Assignee: Robert Bosch GmbH
    Inventor: Dietmar Kratzer
  • Patent number: 9090236
    Abstract: A valve cartridge for a magnet valve includes a capsule, a valve core, a valve body, a lower valve part and a flat filter. The valve core has a first end and a second end. The first end is inserted into the capsule. The valve body has a main valve seat. The valve body is inserted into the second end. The lower valve part is axially supported on the valve core and includes a nonreturn valve. The nonreturn valve includes a nonreturn valve seat and a nonreturn valve closing element. The flat filter has an inserted filter screen for filtering dirt particles. The filter screen is connected to the lower valve part. The nonreturn valve seat is placed in the lower valve part. An opening stroke of the nonreturn valve closing element is limited by an abutment contour arranged on the flat filter level with the filter screen.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: July 28, 2015
    Assignee: Robert Bosch GmbH
    Inventor: Joerg Fricke-Schmidt
  • Patent number: 9061672
    Abstract: There is provided a vehicle brake device that includes hydraulic brake means for generating a hydraulic brake force and regenerative brake means for generating a regenerative brake force and distributes the hydraulic brake force and the regenerative brake force for a driver-requested brake force. The hydraulic brake means includes a pressure reducing valve that reduces hydraulic pressure of wheel cylinders. The vehicle brake device includes hydraulic brake control means for maintaining the pressure reducing valve open while the driver-requested brake force is covered by only the regenerative brake force. The hydraulic brake control means does not open the pressure reducing valve when hydraulic pressure is present in the wheel cylinders.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: June 23, 2015
    Assignee: Bosch Corporation
    Inventors: Motomu Hakiai, Yoshiyasu Takasaki
  • Patent number: 9038984
    Abstract: A solenoid valve, the magnet armature of which is designed to be movable relative to a first valve-closing element, for which purpose the first valve-closing element is accommodated telescopically in a coupling element attached to the magnet armature, wherein the coupling element is guided along the inner wall of a guide sleeve inserted in the valve housing in order to align the magnet armature precisely with the first valve-closing element in the direction of a second valve-closing element which is likewise accommodated in the guide sleeve.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: May 26, 2015
    Assignee: Continental Teves AG & Co. oHG
    Inventor: Christoph Voss
  • Patent number: 9022350
    Abstract: An assembly structure of an electronic control unit and a coil assembly of a solenoid valve for an electronic brake system connected to the electronic control unit having a printed circuit board and applying power to the solenoid valve. The coil assembly is penetrated to allow an upper portion of the solenoid valve to be fitted thereinto, and includes a cylindrical bobbin provided with a coil and a coil case. The electronic control unit is provided with a housing having an insertion groove and joined to the hydraulic control unit, the printed circuit board being disposed spaced apart from the coil assembly, and the housing is provided with an elastic member having one end contacting the printed circuit board and the other end contacting the coil case. The elastic member is configured with a coil spring to produce different elastic forces.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: May 5, 2015
    Assignee: Mando Corporation
    Inventor: Ji Min Jung
  • Patent number: 8950828
    Abstract: A braking system for braking at least one wheel of a vehicle includes at least one brake actuator assigned to the wheel, a hydraulic modulator, at least one brake line path connecting the hydraulic modulator to the brake actuator, the brake line path having at least one electrically conductive brake line, a control unit for controlling and/or regulating the hydraulic system, a sensor assigned to the wheel and a signal line path technically connecting the control unit to the sensor for signal transmission. The brake line forms or participates in forming the signal line path.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: February 10, 2015
    Assignee: Robert Bosch GmbH
    Inventor: Uwe Martin
  • Patent number: 8936230
    Abstract: A normally open electromagnetic valve includes: a fixed core; a movable core which is driven when excited; a valve seat member in the fixed core and having a funnel-shaped valve seat surface; a valve member disposed so that the valve member advances or retreats together with the movable core with one end of the valve member kept in contact with the movable core, and that the other end of the valve member closes or opens a flow passage by coming into contact with or separates from the valve seat surface; and a return spring. The fixed core has a cylindrical holding hole. The valve member advances or retreats being guided by the holding hole in sliding contact with the holding hole. The movable core has a projection which projects toward the fixed core and which is directly inserted into the holding hole.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: January 20, 2015
    Assignee: Nissin Kogyo Co., Ltd
    Inventors: Yoshiyuki Takamatsu, Tetsuo Sasaki
  • Patent number: 8925897
    Abstract: A solenoid valve includes a magnet armature, which is operatively connected to a sealing element of the solenoid valve in order to move the latter, and an armature opposing piece which is arranged at the end of the magnet armature. An intermediate element, which can be placed in supporting contact with the armature opposing piece, is mounted in an axially movable fashion in a guide recess in the magnet armature. A driver assistant device includes the above-described solenoid valve.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: January 6, 2015
    Assignee: Robert Bosch GmbH
    Inventor: Norbert Alaze
  • Patent number: 8869831
    Abstract: A traction valve is provided for use in combination with a relay valve. The traction valve includes a body configured for connection to a housing of the relay valve and defining inlet, outlet and traction supply ports. A first fluid control valve used for traction control is supported on the body and includes a valve member that alternately permits and prevents fluid communication between the traction supply and outlet ports in the body. The body and the first fluid control valve are configured to receive any of a plurality of interchangeable second fluid control valves between the inlet port in the body and the first fluid control valve. Each of the plurality of interchangeable second fluid control valves is configured to perform a different function such that the traction valve assumes different configurations upon assembly of the various second fluid control valves with the body and the first fluid control valve.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: October 28, 2014
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventors: Craig S. Haehn, Chris J. Polmear, Charles E. Ross
  • Patent number: 8814280
    Abstract: A hydraulic brake system includes a body with cavities, a vacuum brake booster port, a first caliber port and a channel system defined therein. An accumulator is located in a first one of the cavities. A first proportional solenoid valve is located in a second one of the cavities. A traction control valve is located in a third one of the cavities. The channel system is connected to the accumulator, the first proportional solenoid valve and the traction control valve via the first, second and third cavities. The channel system is further connected to the vacuum brake booster port and the first caliber port. The vacuum brake booster port, the accumulator, the first proportional solenoid valve, the traction control valve and the channel system are used together to control brake fluid to exert a first baking force on the first caliber port.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: August 26, 2014
    Assignee: Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National Defense
    Inventors: Te-Ming Yeh, Chuen-An Chen, Min-Fang Lo, Che-Pin Chen, Min-Hua Shih
  • Patent number: 8794715
    Abstract: The electro-pneumatic latching valve system having an electrical switch unit that further includes an “apply” or “activate” switch, a “release” or “deactivate” switch, and a power supply. A first solenoid valve is in electrical communication with the activate switch and a second solenoid valve is in electrical communication with the deactivate switch. A pneumatic latching valve is in pneumatic communication with the first and second solenoid valves and a source of pressurized control and supply air is in pneumatic communication with the pneumatic latching valve and the solenoid valves. A terminal device, e.g., a spring brake, is in pneumatic communication with the latching valve, and the device is released or applied in response to pressurized supply air delivered to the device through the pneumatic latching valve in response to pneumatic control signals delivered to the pneumatic latching valve from the solenoid valves.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: August 5, 2014
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventors: Mark A. Bennett, Robert J. Herbst
  • Patent number: 8794718
    Abstract: A valve unit for an electro-pneumatic brake control is connected to an input of an air-quantity-boosting valve for the aeration/venting thereof. A double-armature solenoid valve includes primary and secondary armatures each spring-loaded and actuated by a common magnet coil. The primary armature is a switch for a vent valve; the secondary armature is a switch for an intake valve. When the coil is not drawing current, the armatures are in spring-loaded position, the intake valve blocking intake and the vent valve venting. When a first current flows through the coil, the primary armature enters switching position, with the secondary armature in spring-loaded position; the intake valve blocking intake and the vent valve blocking venting. When a second current greater than the first flows through the coil, both primary and secondary armatures are moved into switching positions, so that the intake valve admits air and the vent valve blocks venting.
    Type: Grant
    Filed: July 4, 2007
    Date of Patent: August 5, 2014
    Assignee: WABCO GmbH
    Inventors: Uwe Bensch, Jörg Helmer, Reiner Hölscher, Bernd-Joachim Kiel, Wilfried Menze, Juan Rovira-Rifaterra
  • Patent number: 8780564
    Abstract: A solenoid control apparatus includes a resin housing having a solenoid mounting portion, a connector portion, and a circuit board mounting portion in which a circuit board is mounted. Terminals extending from the solenoid mounting portion and the connector portion are soldered to the electrical circuit on the circuit board. The circuit board has a reduced-rigidity portion in its area corresponding to a portion of the resin housing through which the connector portion is connected to the solenoid mounting portion. The reduced-rigidity portion is formed by reducing the amount of material forming the circuit board per unit area, and is more easily deformable than the remaining portion of the circuit board. When the connector portion is thermally deformed, the circuit board is also easily deformable about the reduced-rigidity portion. This reduces stress on the soldered portions.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: July 15, 2014
    Assignees: Advics Co., Ltd., Denso Corporation
    Inventors: Koji Yanai, Masayuki Hijikata, Takanobu Inagaki, Tetsuya Yoshijima, Toshimasa Miyazaki
  • Patent number: 8757584
    Abstract: An actuating device, particularly for actuating valves connected externally, includes a housing (10) and a coil body (12) arranged in the housing. The coil body has a coil winding (14) at least partially enclosing a coil tube (16), a pole core (20) connected at the coil tube free end, an armature (22) guided in a longitudinally displaceable manner at least in the pole tube (16) within an armature chamber (24) and interacting with an actuating part (26) for actuating the respective valve part. The pole tube (16) is designed as a receiving sleeve for the armature (22). The sleeve is fixed with its free end region to a fixed bearing point. The fixed bearing point is formed by two support parts (118, 124) of the pole core (20) that delimit a receiving gap between them, in which the free end region of the receiving sleeve is fixed in a clamped manner.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: June 24, 2014
    Assignee: Hydac Electronic GmbH
    Inventors: Martin Bill, Florian Lauer, Christoph Meyer
  • Patent number: 8757585
    Abstract: An actuating device, particularly for actuating valves that can be connected externally, includes a housing (10) and a coiled body (12) in the housing and having a coil winding (14). The winding encloses a pole tube (16) at least partially, having a pole core (20) connected at its free end. An armature (22) is guided in a longitudinally displaceable manner at least in the pole tube (16) within an armature chamber (24) and interacts with an actuating device (26) for actuating a valve part. The actuating part (26) is guided within the pole core (20) along an annular body (92), sealing the inside of the pole core (20) and the pole tube (16) relative to the surrounding area.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: June 24, 2014
    Assignee: Hydac Electronic GmbH
    Inventors: Martin Bill, Florian Lauer
  • Patent number: 8740185
    Abstract: A valve module, in particular a solenoid valve for a brake system of a motor vehicle, is disclosed. The valve module includes an essentially cylindrical-shaped valve base body in which a valve needle is arranged in an axially displacable manner, and a housing cap which closes the valve base body on one end. The cap is maintained on the valve base body by at least one holding device. The maintaining device includes at least one recess on the outer surface of the cover of the valve base body into which plastically deformed material of the housing cap is introduced. A method for producing this type of valve module is also disclosed.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: June 3, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Harald Guggenmos, Florian Rispler, Friedrich Mueller, Anton Fritz, Philip Tannheimer, Elmar Vier
  • Patent number: 8740178
    Abstract: A solenoid valve for controlling a fluid includes an armature having a base region, a lateral region and a head region. The solenoid valve includes a valve member connected to the armature. The solenoid valve further includes an armature casing component in which the armature is positioned. A flow path is formed between the armature and the armature casing component, the flow path extending from a lower armature space to an upper armature space and back to the lower armature space. A junction region is arranged between the head region and the lateral region. The junction region has at least one groove formed therein to facilitate an overflow between the lateral region and the head region.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: June 3, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Karl, Massimiliano Ambrosi, Nicolas Houis, Jens Norberg, Stephan Steingass, Elmar Vier, Andreas Lechler, Gerhard Stokmaier
  • Patent number: 8733397
    Abstract: An electromagnetically actuated valve including a solenoid with a coil that generates a magnetic field upon being energized, a tubular member made of a non-magnetic material and disposed on an inner circumferential side of the coil, a movable valve body disposed within the tubular member and movable in an axial direction of the tubular member by an attraction force that is generated upon energizing the coil to thereby open and close a fluid passage, a first member made of a resin material and including a seat portion that is brought into contact with the movable valve body to close the fluid passage, and a first biasing member that biases the movable valve body toward the seat portion.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: May 27, 2014
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Yukinori Otsuka, Yohei Sato
  • Patent number: 8714519
    Abstract: Disclosed is a solenoid valve, the valve housing of which has a thick-walled tubular body (4) for fastening in a valve receiving bore (11), which thick-walled tubular body (4) is connected to thin-walled sleeve (1). The thin-walled sleeve (1) has a radially circumferential collar (2) which makes contact with an inner shoulder (3) in the tubular body (4), and for the tubular body (4) to have a recess (5) at a radial spacing from the inner shoulder (3) The radial spacing is selected in such a way that a plastically deformable banded collar (6) remains between the inner shoulder (3) and the recess (5) on the tubular body (4). As a result, a frictional, tight connection of the tubular body (4) with the sleeve (1) is possible.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: May 6, 2014
    Assignee: Continental Teves AG & Co. OHG
    Inventors: Christoph Voss, Christian Schulz
  • Patent number: 8651587
    Abstract: A hydraulic brake system equipped for anti-slip control and for active brake interventions has a self-priming pump. A pressure retention valve prevents the brake system's low-pressure accumulator and the wheel brakes from being evacuated below atmospheric pressure during a sensitive brake operation. A two-position valve deactivates the bias of the pressure retention valve by opening a fluid path from the low-pressure accumulator to the pump when it is desired that the wheel brakes be retracted farther to reduce drag and excessive wear of the brake friction elements.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: February 18, 2014
    Assignee: Continental Automotive Systems, Inc.
    Inventors: Martin Baechle, James John Rizzo, Yuji Nakayasu
  • Patent number: 8641153
    Abstract: A valve assembly, which houses a valve closing member that co-operates with an armature to connect or separate pressure medium channels in a valve housing, the member being directed towards a valve seat which is situated on a valve seat body fixed in the valve housing. The valve assembly includes a solenoid for actuating the armature which is pushed onto a non-magnetisable sleeve section of the valve housing and a magnetic core that is diametrically opposed to the armature in the valve housing. Various valve functions can be achieved by using identical valve components in a modular manner.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: February 4, 2014
    Assignee: Continental Teves AG & Co. oHG
    Inventor: Christoph Voss
  • Patent number: 8645003
    Abstract: Provided are a braking control system for a vehicle which is controlled in a priority order, and a method of the same. A braking control system for a vehicle equipped with an electronic brake at each wheel includes a first control unit controlling the operation of a first electronic brake mounted at a front-left wheel and a second electronic brake mounted at a front-right wheel in response to braking signals, and a second control unit controlling the operation of a third electronic brake mounted at a rear-left wheel and a fourth electronic brake mounted at a rear-right wheel in response to the braking signals. In this configuration, when a fail occurs in any one of the first and second control units, the other control unit selectively controls at least one or more of the first to fourth electronic brakes, in accordance with predetermined logic.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: February 4, 2014
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Jong Sung Kim
  • Patent number: 8622718
    Abstract: The invention relates to a pump element for installation in a pump bore of a hydraulic block, which includes a pump plunger, a restoring spring for the pump plunger, and an inlet valve having an inlet valve cover, in which a closing spring and a closing body are arranged. According to the invention, the inlet valve cover has a high pressure sealing section, which rests against the valve seat element in the axial direction with spring force support provided by the restoring spring. The valve seat element is positively connected to the pump plunger at least before installation of the pump element in the pump bore. Centering elements are provided for centering the inlet valve cover relative to the valve seat element. The invention further relates to a hydraulic block and to an installation method.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: January 7, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Nicole Kathan, Ludger Hermanns, Marc Zimmermann
  • Patent number: 8622486
    Abstract: The invention is based on a hydraulic unit for regulating the brake pressure in a vehicle brake system. Hydraulic units of such a type are the core component of an anti-lock vehicle brake system, of a drive slip vehicle brake system or of a vehicle brake system which regulates driving stability. The invention proposes a particularly advantageous arrangement of the required recesses in a housing block of a hydraulic unit. On account of the arrangement, the housing block can be reduced in terms of its dimensions, and can be produced with a lower weight and more simply in terms of production. For this purpose, according to the invention, the pressure fluid connection from one of the ports of the master brake cylinder to the suction side of one of the pump elements extends through the valve receptacle of the switching valve.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: January 7, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Juergen Tandler, Andeas Weh
  • Patent number: 8596609
    Abstract: The invention relates to a solenoid valve with a magnet assembly and a valve cartridge having a pole core, a valve insert connected to the pole core, an armature which is guided within the valve insert in an axially movable manner between a closed position and an open position and is coupled to a closing element, and a valve body which is connected to the valve insert and has a main valve seat which is arranged between at least one first flow opening and a second flow opening. The axially movable armature, when the magnet assembly is energized, is moved by a generated magnetic force within the valve insert in the direction of the pole core counter to a spring force of a resetting spring and counter to a fluid force in order to lift the closing element out of the main valve seat; and to permit a flow of fluid between the at least one first flow opening and the second flow opening.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: December 3, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Heyer, Massimiliano Ambrosi, Michael Eisenlauer, Michael Rietsche, Michael Tischer, Stephan Steingass, Michael Hilden
  • Patent number: 8585157
    Abstract: To achieve a specifiable, and thus reproducible final pressure in at least one part of the brake circuit, the pump is first actuated for pressure buildup or pressure reduction when the valve is closed. When a first specified setpoint pressure is reached, or when a pressure threshold value is exceeded, the valve is put into an open position using a first actuation. After the pump is switched off, the actuation of the valve is modified in such a way that, during a specifiable time, a continuous change of the first actuation is undertaken all the way up to a second actuation, in which the valve assumes a holding position, particularly while taking into consideration the pressure difference which prevails at the valve.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: November 19, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Philipp Grell, Ulrich Mahlenbrey, Mark Unbescheiden, Heiner Messner, Raphael Oliveira, Julien Bregeault, Carsten Bodmann, Jens Kolarsky
  • Patent number: 8550427
    Abstract: A solenoid valve includes a solenoid coil, a yoke of magnetic material, an armature of magnetic material to move in an axial direction of the solenoid coil when the solenoid coil is energized, a plunger to be moved with the armature, a valve seat member including a seat portion formed with a valve hole to be closed and opened by a forward end portion of the plunger, and a coil spring which is disposed between a spring receiving portion of the plunger and the valve seat member, around the plunger. The plunger includes a pressure receiving portion (such as a flat portion) which extends in a radial direction of the plunger at a position between the forward end portion and the spring receiving portion of the plunger, and which faces to the seat portion.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: October 8, 2013
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Keigo Yoshida, Norihiro Saita, Satoshi Doi, Tadaharu Yokota
  • Patent number: 8500217
    Abstract: In a vehicle braking apparatus, a pressure control valve is controlled according to a brake operation amount of a brake pedal to thereby regulate hydraulic pressure and supply it to wheel cylinders. By controlling the pressure control valve by using hydraulic pressure output from a master cylinder as pilot pressure, the hydraulic pressure can be regulated and supplied to the wheel cylinders. A master cut valve capable of opening and closing a first hydraulic pipe that supplies the hydraulic pressure from the master cylinder to the wheel cylinders is provided. An external pressure supply pipe that supplies the pilot pressure to the pressure control valve is connected to the first hydraulic pipe on a side of the master cut valve closer to the wheel cylinders.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: August 6, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroshi Isono
  • Patent number: 8500086
    Abstract: A solenoid valve having a magnet assembly and a valve cartridge includes a capsule and a valve insert connected to the capsule. An armature, that is movably disposed within the capsule, includes a tappet having a locking element and a main sealing element. A valve body having a main valve seat is pressed into the valve insert, wherein a magnetic force generated by the magnet assembly axially moves the armature against the force of a return spring and plunges the main sealing element into the main valve seat in a sealing manner. The valve body includes an open end which acts as a spring support for the return spring, wherein the return spring is disposed outside of a fluid flow path present between the opened main valve seat and at least one radial downstream opening in the valve body.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: August 6, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Dietmar Kratzer
  • Patent number: 8480056
    Abstract: A conical portion is provided at the tip of a main valve body. When brake fluid hits the conical portion of the main valve body, the brake fluid is bounced back at substantially the same angle at which it hits the conical surface of the conical portion. However, the movement direction of the bounced brake fluid is not largely inclined from the direction that the brake fluid is to be caused to flow. Therefore, the flow resistance is reduced. Further, generatrices of the conical portion agree with tangent lines to the spherical surface and the boundary area between the spherical surface and the conical surface is continuous without a step. Therefore, the brake fluid is rectified by these surfaces when it flows. It is possible to reduce the amount of fluctuation in pressure differential relative to fluctuation in the flow rate of brake fluid.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: July 9, 2013
    Assignees: Advics Co., Ltd., Denso Corporation
    Inventors: Motokazu Ishikawa, Yuuji Yabuki
  • Patent number: 8474787
    Abstract: The invention relates to a valve cartridge for a solenoid valve, having a capsule, a valve insert that is inserted by a first end into the capsule and on its other end receives a valve body with a main valve seat. A lower valve part is axially braced on the valve insert, and a flat filter for filtering out dirt particles is connected via a retaining element to the lower valve part. According to the invention, the retaining element includes at least one component on the flat filter side and at least one corresponding component on the lower valve part side, which makes at least one partial clamping connection between the flat filter and the lower valve part. The invention further relates to a solenoid valve having such a valve cartridge.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: July 2, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Reinhard Fink, Joerg Fricke-Schmidt, Hans-Peter Bartosch
  • Patent number: 8424840
    Abstract: The invention relates to a valve cartridge for a solenoid valve having a capsule, a magnetic armature that is movably guided within the capsule, a valve insert inserted into the capsule at a first end, and a valve body, which is pressed into a second end of the valve insert, and having a main valve seat. The magnetic armature, moved by a generated magnetic force, moves a tappet that is guided within the valve insert. The tappet has a locking element which includes a sealing element which plunges into the main valve seat of the valve body in a sealing manner for carrying out a sealing function, and an associated solenoid valve. According to the invention, the valve insert is configured as a slotted bushing, having a collar integrated onto the second end of the valve insert in order to increase an outer diameter and a shape stability of the valve insert.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: April 23, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Dietmar Kratzer