Patents Assigned to TRW
  • Publication number: 20180010971
    Abstract: A torque sensor for use in an electric power assisted steering system comprises a first shaft, a second shaft, and a torsion bar, a hollow sleeve that is secured to the first shaft and extends along the torsion bar to at least partially axially overlap the second shaft, angular deflection indicating means that produce a signal that is dependent on the angular deflection of the first shaft relative to the second shaft as a torque is applied across the torque sensor that causes the torsion bar to twist, at least one drive dog fixed to the sleeve and at least one corresponding drive dog fixed to the second shaft, in normal operation the two dogs being offset so that they permit a defined range of angular deflection of the torsion bar but will engage each other to provide a path for torque to be transferred from the first shaft to the second shaft in the event of a failure of the torsion bar, and a connecting element which has a first part that is secured within a bore in one of the second shaft and the sleeve, t
    Type: Application
    Filed: January 19, 2016
    Publication date: January 11, 2018
    Applicant: TRW Limited
    Inventors: Robert Hill, Andrew Paul Smith, James Stephen Ironside, Matthew Larner
  • Patent number: 9855910
    Abstract: A mounting device (10) for a folded airbag, especially for a folded side airbag, is provided comprising a base plate (12), a clamping portion (14) encompassing the airbag in ring shape and a fixing plate (16) adjacent to the clamping portion (14). The fixing plate (16) and the base plate (12) exhibit a first and, resp., a second contact surface (32, 34) which are directly superimposed in the mounted condition. Furthermore an airbag module comprising a mounting device (10) is suggested.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: January 2, 2018
    Assignee: TRW Automotive GmbH
    Inventor: Anton Fischer
  • Patent number: 9855915
    Abstract: An apparatus detects a vehicle/pedestrian impact event by sensing impact events near a forward location of a vehicle using both acceleration sensors and pressure sensors and providing associated signals indicative thereof, determining metric values for each of the sensor signals, and determining if a vehicle/pedestrian impact has occurred in response to the determined metric values.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: January 2, 2018
    Assignee: TRW AUTOMOTIVE U.S. LLC
    Inventors: Chek-Peng Foo, Huahn-fern Yeh, Ying-chang Lee
  • Publication number: 20170361865
    Abstract: A vehicle power steering assembly has a pinion housing comprised of first, second, and third housings. The first housing is a drawn tube formed from a first material. The second housing is a casting formed from a second material. The third housing is a stamping formed from a third material. The second housing is press fit into the first housing. The third housing is press fit and welded to the first housing. The second material has a lesser unit weight than each of the first and third materials. The first, second, and third housings together form the pinion housing.
    Type: Application
    Filed: June 17, 2016
    Publication date: December 21, 2017
    Applicant: TRW Automotive U.S. LLC
    Inventors: Gaurav Krishnaraj, Libin John
  • Publication number: 20170361866
    Abstract: A rack ball nut assembly for a vehicle steering gear has a ball nut, a ball return tube, and a tube retention clip. The ball nut has first and second recesses and the ball return tube has first and second tube portions. There is a snap fit between the first and second tube portions. The tube retention clip has first and second retention tabs. The first tab is engaged in the first recess and the second tab is engaged in the second recess. The ball return tube is secured between the ball nut and the tube retention clip.
    Type: Application
    Filed: December 3, 2015
    Publication date: December 21, 2017
    Applicant: TRW Automotive U.S. LLC
    Inventors: Praful Bari, Jeffrey Beyerlein
  • Patent number: 9840224
    Abstract: An inflator for a protective device in a vehicle includes a diffuser (10) forming a substantially rotation-symmetric external housing of the locator with a closing member (12), wherein the diffuser (10) includes a plurality of discharge orifices (78) arranged in a row, and which are of circular shape. The inflator also includes a circumferential wall (16, 22) which surrounds a combustion chamber (44) and a filter (46) which extends at least partially along the wall (16, 22), wherein the wall (16, 22) has at least one supporting portion (124) which constitutes an axial support for the filter (46) and is integrally formed with the wall (16, 22), and wherein either plural supporting portions (124) are formed by embossed beads, the heads being spaced apart from each other in circumferential direction, and wherein a supporting portion (124) is formed by a completely circumferential embossed bead.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: December 12, 2017
    Assignee: TRW Airbag Systems GmbH
    Inventors: Sebastian Bierwirth, Achim Hofmann, Hans-Peter Neumayer, Dieter Spitzenberger, Hannes Nuiding, Thomas Schober, Josef Bommer, Tobias Breddermann, Dietmar Schwebel
  • Patent number: 9842445
    Abstract: Method for preventing security breaches via the two-thief method of attack of passive remote keyless entry systems for vehicles. The method involves the measurement of air travel time of the RF messages between the RKE fob and the vehicle. Multiple round trips between the fob and the vehicle are employed to magnify the distance covered by the messages and thereby allow accurate measurement of the air travel time.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: December 12, 2017
    Assignee: TRW Automotive U.S. LLC
    Inventor: Xing Ping Lin
  • Patent number: 9834174
    Abstract: A tensioner (10) for a vehicle safety device is provided with a tubular casing (12) in which a piston (18) is movably supported as well as with a closure member (26) closing the tubular casing (12) on the front face and forming a cable guide (38) for a tensioning cable (28) which may be connected to a belt buckle or an end fitting (34) and in which cable guide the tensioning cable (28) is deflected in arc shape. Further, the tensioner (10) comprises an inflator (24) accommodated in the closure member (26), wherein the tubular casing (12) includes a receiving area (14) for receiving the closure member (26) as well as a fastening portion (16) serving for fastening the tensioner (10) to a vehicle frame.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: December 5, 2017
    Assignee: TRW Automotive GmbH
    Inventor: Michal Kacprzak
  • Patent number: 9834173
    Abstract: A coupling element (32) which is movable between a coupling position in which the coupling element couples the belt reel (12) to the damping means (22) and an idle position in which the coupling element (32) is disconnected from the belt reel (12) is provided on a belt retractor (10) comprising a belt reel (12) which is mounted in a housing (14) and onto which webbing of a seat belt can be wound and comprising a damping means (22) adapted to dampen the winding rotation of the belt reel (12) in a defined end portion.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: December 5, 2017
    Assignee: TRW Automotive GmbH
    Inventors: Frederic Michel, Thomas Kielwein
  • Publication number: 20170346399
    Abstract: A drive circuit for an electric motor of the type which forms part of a pump in a hydraulic braking circuit of a vehicle comprises an input node, an output node and a voltage and current regulating circuit which connects the nodes and which varies the voltage and current supplied to the output node from the input node in response to a modulation strategy, the input node in use being connected to a battery supply of a vehicle and the output node connected to one side of the electric motor. The voltage and current regulating circuit comprises a switch mode power supply circuit capable of providing at the output node a voltage that is either above or below the battery supply voltage at the input node.
    Type: Application
    Filed: December 8, 2015
    Publication date: November 30, 2017
    Applicant: TRW Limited
    Inventor: Kenneth Vincent
  • Patent number: 9821752
    Abstract: The invention relates to a hybrid inflator (10) including a burst cap (20) including a bottom (21) and a sleeve-like side wall (22), the bottom (21) and the side wall (22) delimiting an igniter compartment (23), and the burst cap (20) in the idle mode being pressurized on the outer peripheral side with compressed gas having a filling pressure (PF) which at a functional maximum temperature of the hybrid inflator (10) has a maximum filling pressure (PFmax), and wherein the burst cap (20) can be destroyed by an igniter compartment side bursting pressure in the case of operation. In accordance with the invention, a transitional portion (24) is formed from the side wall (22) of the burst cap (20) to the bottom (21) so that the igniter compartment side bursting pressure required to destroy the burst cap (20) is lower than the sum of the maximum filling pressure (PFmax) and the filling pressure (PF).
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: November 21, 2017
    Assignee: TRW Airbag Systems GmbH
    Inventor: Lorenz Seidl
  • Patent number: 9815489
    Abstract: A device for pressing a rack against a pinion, comprises a housing, a thrust piece which is shiftably guided in the housing along a pressing axis, a bearing element which can axially be fixed at the housing, an axially pressurized force introduction member, and wedge members which each support on the thrust piece, on the bearing element and on the force introduction member, wherein at least three wedge members uniformly distributed in circumferential direction are provided, and wherein the force introduction member urges the wedge members radially to the outside and the thrust piece axially away from the bearing element.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: November 14, 2017
    Assignee: TRW Automotive GmbH
    Inventor: Markus Lingemann
  • Patent number: 9815431
    Abstract: An inflator for a protective device in a vehicle includes a diffuser (10) forming a substantially rotation-symmetric external housing of the inflator with a closing member (12), wherein the diffuser (10) includes a plurality of discharge orifices (78) arranged in a row, and which are of circular shape. The inflator also includes an igniter sleeve (38) which at least partially encloses an igniter (34) and an igniter chamber (42) filled with a booster charge and is adjacent to a first combustion chamber (44) filled with fuel, wherein the igniter sleeve (38), related to a central axis B of the igniter sleeve (38), has overflow orifices (98) unevenly distributed in circumferential direction.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: November 14, 2017
    Assignee: TRW AIRBAG SYSTEMS GmbH
    Inventors: Sebastian Bierwirth, Achim Hofmann, Hans-Peter Neumayer, Dieter Spitzenberger, Hannes Nuiding, Thomas Schober, Josef Bommer, Tobias Breddermann, Dietmar Schwebel
  • Publication number: 20170324155
    Abstract: A mount for mounting an object, such as non-exclusively a radar sensor, on a surface, such as one of a vehicle, the mount comprising: a carrier; a fixed length strut which has a fixed length from a mounting point arranged to engage the surface and a pivot point about which it is mounted pivotally on the carrier; and two variable length struts, which each have a variable length from a mounting point arranged to engage the surface and a pivot point about which it is mounted pivotally on the carrier.
    Type: Application
    Filed: November 5, 2015
    Publication date: November 9, 2017
    Applicant: TRW Limited
    Inventors: Robert Styles, Luke Keene
  • Publication number: 20170320516
    Abstract: A steering device for a motor vehicle is described, the steering device comprising a steering element for steering the motor vehicle, and an actuating element by means of which wheels of the motor vehicle are adjusted as a function of an actuation of the steering element. The steering element has a steering assist unit associated with it, in particular an electronic steering assist unit for active return of the steering element, the steering assist unit comprising a motor and an open- and closed-loop control unit which drives the motor for generating an assist torque. The open- and closed-loop control unit receives data from a first sensor which directly senses the position of the actuating element, and drives the motor as a function of the position of the actuating element. Further described is a method of controlling a steering device.
    Type: Application
    Filed: October 21, 2015
    Publication date: November 9, 2017
    Applicant: TRW Automotive GmbH
    Inventors: Keiwan Kashi, Catharina Burdessa
  • Publication number: 20170307660
    Abstract: A current measurement circuit suitable for measuring the flow of current along a path in an electrical circuit such as a part of an electric power assisted steering system comprises a current measurement resistor that is located in series in the electrical path through which a current to be measured may flow, a first measurement sub-circuit that measures the voltage dropped across at least a part of the resistor and produces a first output signal, and a second measurement sub-circuit that measures the voltage dropped across at least a part of the resistor and produces a second output signal, and in which the electrical connections of the two sub-circuits to the resistor are independent of each other.
    Type: Application
    Filed: October 8, 2015
    Publication date: October 26, 2017
    Applicant: TRW Limited
    Inventors: Stephen Harvey, Andrew Williams, Philip Browne
  • Patent number: 9796356
    Abstract: A belt retractor (10) for a seat belt comprising a belt reel (20), a belt tensioner (44) adapted to drive the belt reel (20) in a winding direction and an extension limiter (16) adapted to restrict the number of revolutions of the belt reel (20) in an unwinding direction in the activated state. The extension limiter (16) is communicated with the belt tensioner (44) so that the extension limiter (16) can only be activated after the belt tensioner (44) has been activated.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: October 24, 2017
    Assignee: TRW Automotive GmbH
    Inventors: Beate Hertäg, Steffen Dambacher, Adrian Landbeck
  • Patent number: 9800184
    Abstract: A motor drive circuit comprises a motor having a plurality of phases, a switching circuit comprising a plurality of electrical switches, a motor current controller that generates voltage demand signals to be passed to a drive circuit for the switches that in turn generate pulse width modulated switching signals for the switching circuit that cause the switches to selectively connect the phases to a power supply so as to cause current to flow through the phases of the motor, and a motor torque controller that produces a demand signal that is fed to an input of the current controller, the motor current controller responding to an error signal that is at least partially dependent on the value of the demand signal. The torque controller in use updates the demand signal at a first sample rate.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: October 24, 2017
    Assignee: TRW LIMITED
    Inventor: Nikhil Prahlad
  • Patent number: 9799220
    Abstract: Apparatus for use in a vehicle equipped with a vehicle-to-vehicle communication system. A remote keyless entry fob is provided for remote control of vehicle access. The fob includes a receiver for receiving a message broadcast by the vehicle-to-vehicle communication system and a memory for storing at least some elements of the message.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: October 24, 2017
    Assignee: TRW Automotive U.S. LLC
    Inventor: Xing Ping Lin
  • Publication number: 20170297608
    Abstract: A rack-and-pinion steering for a motor vehicle, having a rack which has a longitudinal axis, a rack housing in which the rack is guided for axial displacement, and at least one end stop damping assembly for the rack, the end stop damping assembly being received in the rack housing, the end stop damping assembly including a compression body for damping an end stop and a stop member which is mounted to the rack housing for limited displacement in the axial direction, the stop member resting against a first supporting surface of the rack housing at least partly by means of the compression body in a first axial direction and resting against a second supporting surface of the rack housing in an opposite, second axial direction.
    Type: Application
    Filed: July 15, 2015
    Publication date: October 19, 2017
    Applicant: TRW Automotive GmbH
    Inventors: Eduard Span, Robert Kolloch, Nadja Nilgen, Rolf von Laar