The Furukawa Electric Co., Ltd.

Furukawa Electric., Ltd.

Shigeki Itabashi

Eiji Ichii

Ken Abe

Mitsunori Kato

Masaaki Imamura

Hiroshi Tutumi

Hiroshi Mizoguchi

This invention proposes a control device for an electric source supply, providing a function which prevents battery death of a vehicle. A lamp main relay turns a lamp main relay,off in case an ignition switch,is off and also when a door state is not changed over time T,which is predetermined with a timer Tm,, and cuts off an electric source supply to an interior dome lamp,, door lamps,of D-seat, P-seat, R-seat in order to prevent battery death. Further, a door/interior dome lamp control part,turns the interior dome lamp,and the door lamps in response to opened-doors off when doors are not closed more than time T,which is predetermined with timer means Tm,in order to prevent battery death. A warning signal may be generated before the control for preventing battery death or during the control mode for preventing battery death.

Power supply controller for vehicle with function of preventing running down of battery

A multiplex transmission system includes a number of multiplex transmission devices connected to each other via a common transmission line for transmitting frames of data. Each frame of data includes a string of bits. The number of multiplex transmission devices includes a first multiplex transmission device having a first communication controller, the first communication controller transmitting a first frame of data at predetermined intervals of time while changing a predetermined bit of data in the first frame; and a second multiplex transmission device having a second communication controller, the second communication controller transmitting a second frame of data to the first multiplex transmission device in response to one of (i) a change in input data from an external equipment, and (ii) a change in the predetermined bit of the first frame when the first frame is received by the second multiplex transmission device from the first multiplex transmission device.

Monitoring multiplex transmission system having a respective controller

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Tokyo, Japan

Shigeki Itabashi