Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile
Patent
1992-01-15
1996-01-23
Wong, Peter S.
Electrical transmission or interconnection systems
Vehicle mounted systems
Automobile
34082569, 36442405, G05D 300
Patent
active
054867240
ABSTRACT:
A two buss system to accomplish; 1) communication from contact pairs located at vehicle access points such as a vehicle door or trunk to a central controller; and 2) transmitting current for energization of actuators to implement respective commands such as normal lock or super lock. The contact pairs function to provide entry ports for commands as well as providing status signals of various points of interest. The contact pairs are connected to individual output ports of a counter. Each contact pair is sequentially pulsed by a single pulse of a pulse train provided by the central controller. If a contact pair is engaged or closed when pulsed, the pulse will cause a coincident buss loading to occur. The central controller monitors buss loading and is appraised of the contact status by the coincidence (or lack thereof) of a pulse and a respectively loaded buss. Upon determination of the contact statuses, the central controller accesses a look-up table and then implements the respective commands by energizing one of several relays that define path for flow of current to respective actuators.
REFERENCES:
patent: 4845708 (1989-07-01), Herrmann, Jr. et al.
patent: 5081586 (1993-01-01), Barthel et al.
patent: 5140316 (1992-08-01), Deland et al.
Bonnefond Xavier
Kramer Dennis A.
Malinowski Mark E.
Periou Pierre
Krishman Aditya
Rockwell International Corporation
Wong Peter S.
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