TRW Automotive

About: TRW Automotive is a company organization based out in Mesa, Arizona, United States. It is known for research contribution in the topics: Steering wheel & Airbag. The organization has 1937 authors who have published 2563 publications receiving 16384 citations.

Park break system for vehicles

Abstract: A park brake system for vehicles is provided that has an actuator with an electric drive motor ( 36, 38 ) and an electronic control unit A reduction gear has an input connected to the output of the electric motor and a pull force output member ( 56 ) for connection to mechanical brakes of the vehicle The reduction gear has an input connected to the output of the electric motor A command unit is connected to the electronic control unit The reduction gear comprises a first reduction train and a second reduction train The first reduction train includes a worm gear ( 42, 44 ) and the second reduction train includes a threaded spindle ( 46 ) and a screw nut ( 50 ) engaged with the spindle ( 46 ) The worm gear connects the spindle ( 46 ) to the output of the electric motor ( 36, 38 ) The pull force output member ( 56 ) is connected to the screw nut ( 50 ) The two-step reduction gear ensures the required high rate of reduction to generate high pull forces with a relatively compact electric motor The worm gear used in the first reduction train has a high efficiency, and the threaded spindle and screw nut in the second reduction train allow for a self-locking feature

Snap-in retractor

Abstract: An automotive seat belt retractor accessory frame is provided with a journal groove on one side which is engageable with one end of a structural pocket formed in an automobile for receiving the retractor. On the other side of the retractor frame and away from the journal groove is a stop usually formed as an integral extension of the flanges of the retractor frame. The stop is buttress engaging another edge of the pocket or opening and as the retractor frame is tilted into the pocket journalled at the groove and against one edge of the pocket, the retractor frame is stopped from further swing. A latch member secured to the retractor ramped to open upon passing engagement with the edge of the pocket and closes after the edge of the pocket has engaged the stop. The latch element, upon closing, is locked and the frame cannot be removed until a selected manual bias is applied through the pocket for release of the frame. Upon assembly in an automobile, the retractor mounted in the retractor frame is tilted and snapped into position.

Drive unit for actuating a parking brake in a vehicle

Abstract: A compact drive unit for actuating parking brakes is provided The drive unit has a reduction gear that is formed by a two-stage belt drive, in combination with a drive motor that is made up of a brushless direct current motor The two-stage belt drive preferably consists of two toothed belt drives functionally arranged in series; the direct current motor preferably has an external rotor with a rare-earth magnetic ring.

Power steering apparatus

Abstract: An engine driven pump 24 is connected with a power steering motor assembly 18 . An electric motor 36 drives a pump 34 connected with the power steering motor assembly 18 . A control apparatus 38, 44, 52, 62 and 72 effects operation of the electric motor 36 to drive the pump 34 when the power steering motor assembly 18 requires fluid in addition to fluid supplied by the engine driven pump 24.

Power steering apparatus

Abstract: A power steering apparatus (10) includes a housing (22) defining a chamber (25) for holding power steering fluid. The housing (22) has an opening (62, 104, 154) defined by a projection (64, 102, 152) integrally formed on the housing. A conduit (50) extends into the opening (62, 104, 154) and is connected with the projection (64, 102, 152) on the housing (22). A connector assembly (60, 100, 150) connects the conduit (50) with the projection (64, 102, 152) on the housing (22).