Device and method for supplying power to a vehicle, semi-conductor circuit device for use in the same and collective wiring device for a vehicle or an automobile

• US 7,028,819 B2
• Filed: 04/25/2002
• Issued: 04/18/2006
• Est. Priority Date: 02/21/1996
• Status: Expired due to Fees

• Current Assignee: Hitachi Car Engineering Company Limited (Hitachi, Ltd.), Hitachi, Ltd.
• Original Assignee: Hitachi Car Engineering Company Limited (Hitachi, Ltd.), Hitachi, Ltd.
• Inventors: Saito, Hiroyuki, Sakamoto, Shinichi, Horibe, Kiyoshi, Yoshida, Tatsuya, Koni, Mitsuru
• Primary Examiner(s): NGUYEN, MATTHEW VAN
• Application Number:
  US10/131,248
• Publication Number:
  US 20030098211A1
• Time in Patent Office: 1,454 Days
• Field of Search: 191/2, 191/3, 191/4, 191/6, 323/282, 323/283, 323/285, 701 23- 25, 701/49, 701/200, 701/207
• US Class Current: 191/2
• CPC Class Codes: B60G 17/0185 for failure detection
• CPC Class Codes: B60G 17/0195 characterised by the regulation being combined with other vehicle control systems conjoint control of vehicle sub-units including control of suspension systems B60W10/22
• CPC Class Codes: B60G 2600/08 Failure or malfunction detecting means
• CPC Class Codes: B60L 1/00 Supplying electric power to auxiliary equipment of vehicles circuit arrangements for charging batteries H02J7/00
• CPC Class Codes: B60R 16/0315 using multiplexing techniques multiplexing for transmission of signals G08C15/00; multiplexing for electrical communication in general H04J
• CPC Class Codes: B60R 2016/0322 Temporary code for documents to be reclassified to G08C, H04L or H04Q
• CPC Class Codes: B60R 2021/0104 Communication circuits for data transmission
• CPC Class Codes: B60R 2021/01061 between the airbag system and other vehicle electronic systems
• CPC Class Codes: B60R 2021/01115 specific data frames
• CPC Class Codes: F16F 15/02 Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems F16F15/005 takes precedence ; layered products B32B; suppression of vibration in ships B63; relieving load on bearings, using magnetic means F16C39/06

Abstract

A power supply line is wired in a loop from a battery power supply, and a power supply relay circuit is installed intermediately of the power supply line such that power is supplied from the power supply relay circuit to an electric load connected to a terminal unit of an intensive wiring line. By this arrangement, not only wires for control signals but also wires for power supply can be reduced. The terminal unit may serve also as the power supply relay circuit.

Claims

1. A power supplying apparatus in a vehicle, comprising:

a communication control unit including a computer having a communication controlling program;

a power supply line for connecting said communication control unit and a power supply of said vehicle to each other; and

a navigation power supply circuit responsive to said communication control unit, with including a switch to connect or disconnect said power supply line connected to said communication control unit to or from a navigation unit, wherein the navigation unit is distinct component from the power supplying apparatus.

2. The power supplying apparatus of claim 1, wherein the power supplying apparatus supplies power to at least one vehicle component other than the navigation unit.

3. The power supplying unit of claim 2, wherein the at least one vehicle component is an air conditioner unit.

4. The power supplying unit of claim 1, wherein the navigation unit comprises a central processing unit.