Auxiliary steering wheel command system

Details Auxiliary steering wheel command system Auxiliary steering wheel command system

1980-02-11

1982-07-20

Hix, L. T.

Electrical transmission or interconnection systems

Switching systems

Plural switches

34082577, 307 10R, H04Q 124, H04Q 502

Patent

active

043408249

ABSTRACT:
This invention relates to the use of a multiplexing technique to allow for the unambiguous enabling of remotely located receiving devices. In particular, a plurality of pushbutton switches, each capable of controlling a distinct function, has a common node whose output is transmitted through the single slip-ring usually found on the steering column of an automotive vehicle. This slip-ring is normally used to conduct an electrical voltage from the horn ring to the horn control relay independent of the position of the steering wheel. The multiplexing technique disclosed herein allows for separate and independent control of not only the horn but also other functions such as a cruise control using the existing single slip-ring as the mechanism to transmit the desired signal commands. The demultiplexed signals are derived from logic circuitry located at the distal point of the slip-ring assembly.

REFERENCES:
patent: 2657286 (1953-10-01), Hoklas
patent: 3589777 (1971-06-01), Leiber et al.
patent: 3739185 (1973-06-01), Shimizu et al.
patent: 3987392 (1976-10-01), Kugelmann
patent: 4031477 (1977-06-01), Shaw
patent: 4063789 (1977-12-01), Kreisl

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