Trw Automotive Electronics & Components Gmbh & Co. Kg

Trw Fahrzeugelektrik Gmbh & Co. Kg

Wolfgang Huber

Trevor Stewart

Reinhard Lange

Ralf Elting

Cornelius Peter

Ernst Hafner

Zdenek Pavlis

Danilo Caratto

A rotary transmitter for registration of the steering angle of a motor vehicle, with a transmitter component (,) on which is provided a coding (,) of a predetermined number n of locally sequentially digital words (W,) with a width of m bits (b,, b,, . . , B,) in m adjacent to each other tracks, at least one detector (,) for essentially simultaneous registration of the individual bits (b,, b,, . . . , B,) of a digital word (W,), whereby the transmitter component (,) and at least the one detector (,) are movable relative to each other, and with an evaluation unit (,) to which is conducted the signal of at least the one detector (,). The evaluation unit (,) ascertains the absolute position of the transmitter component (,) relative to at least the one detector (,), at least one time, by evaluation of a predetermined number (p) of sequentially detected digital words (W,), whereby the evaluation unit (,) assigns to a detected p-measure (W,, W,, . . . , W,), consisting of the predetermined number (p) of sequentially detected digital words (W,), a defined position value of the transmitter component (,) relative to at least the one detector (,). The coding is hereby designed in such manner that all sequences (W,, W,, . . . , W,) from among the sequential words (W,) consisting of the predetermined number (p) are uniquely defined at least within a predetermined uniquely defined area (I. II) of coding (,) and that within each uniquely defined area (I, II) the digital words (W,) are not uniquely defined.

Absolute value transmitter acting as a rotation transmitter for registration of a steering angle of a motor vehicle

A steering column switch unit (1) includes a housing (3) in which at least one operating lever (9) is tiltably and/or displaceably retained, for which, during installation, different operating lever types with respective contact device are installable, whereby the steering column switch unit (1) in housing (3) has a reverse contact device with a pre-defined maximum number of switching functions, and whereby the employed choice of switching functions depends upon the type of the installable operating lever (9) and its contact device.

Modular steering column switch with selectable switching functions

A self-adjusting electric tappet switch includes a housing, an electrical switch contact carried on the housing, a slider member movable relative to the housing and adapted to actuate the electrical switch, and an elongate tappet member extending from the housing and selectively engageable with the slider member. The slider member has a first engagement portion adapted to selectively connect with a second engagement portion provided on the elongate tappet member. The switch is self-adjusted by relative rotational movement between the slider member and the elongate tappet member to lock the pair together. In an installation and adjustment position of the tappet and slider system, the slider member is held in a predetermined fixed switching position in the housing relative to the electrical switch while relative longitudinal slidable movement between the tappet member and the slider member is enabled for adjusting the tappet relative to the slider member and switch housing without affecting the position of the slider member within the housing. After the desired length of the tappet member is selected, the slider and tappet members are locked together at the first and second engagement areas. Afterwards, displacement of the tappet member within the housing causes a corresponding movement of the slider member carried on the tappet member relative to the electrical switch.

Self-adjusting electric tappet switch

A self-adjusting electric tappet switch includes a slider linearly guided in a housing for activation or closure of one of several electrical contacts and a tappet which is selectively rotatable relative to the slider for adjustment of the travel limit of the switch. The slider has a first engagement portion provided with engagements parts, and the tappet includes a corresponding second engagement portion having an oblong cross-section provided with spaced apart circumferential grooves. The switch is self-adjusted by relative rotational movement between the slider and the tappet to lock the pair together. In an installation and adjustment position of the tappet and slider system, the slider is held in a predetermined fixed switching position in the housing to permit relative longitudinal slidable movement between the tappet and the slider for adjustment of the tappet without causing any movement of affecting the position of the slider within the housing. After the length of the tappet and slider is set, are locked together by relative rotation therebetween. Displacement of the tappet within the housing causes a corresponding movement of the slider thereby carried on the tappet within the housing relative to the electrical contacts.

Growing community of inventors

Deisenhausen, Germany

Wolfgang Huber