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(11) | EP 0 769 435 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Auxiliary unit control module for use with existing remote vehicle control unit |
(57) A control unit for an auxiliary vehicle unit which may find particular application
in conjunction with an already installed remotely activated vehicle control system,
for example an original equipment manufacturer keyless entry or alarm system. An input
is connected to a designated wiring of a vehicle which is triggered by the already
installed remotely activated vehicle control system. It is then detected whether the
designated wiring is triggered at least twice within a predetermined period of time.
If it is determined that the designating wiring is triggered twice within the predetermined
period of time, then the auxiliary unit is triggered. The auxiliary units may typically
be a remote vehicle starter or window roll-up unit, and the designated wirings of
the vehicle may typically be door lock or unlock wirings. |