Patent ID: 6243018
Filing Date: 2001-06-05
Classification: B60G,B60R

Abstract:
An apparatus for multiplexing between processing units and a battery unit of a vehicle which are connected to one another by a wire harness, by grouping a variety of controlled on-board objects into a plurality of neighboring controlled objects and controlling each of the groups by respective processing units, in which said wire harness comprises:electric conductors, each having an outer peripheral portion covered with a first insulating layer,electric conductivity layer which covers said electric conductors,a second insulating layer which covers the outer peripheral portion of said electric conductivity layer,means for applying an electric potential for monitoring shorting to said electric conductivity layer, andmeans for monitoring the electric potential of said electric conductivity layer with respect to ground variations of said electric potential indicating shorting between said electric conductivity layer and ground, whereby potential failure in said electric conductors is anticipated.