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Communications system for vehicle

A communication system and vehicle technology, applied in transmission systems, vehicle energy storage, vehicle components, etc., can solve problems such as vehicle mounting position restrictions, and achieve the effect of suppressing dark current

Active Publication Date: 2012-04-11
KK TOKAI RIKA DENKI SEISAKUSHO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, since the EV control relay 54 and the on-board charger relay 56 are mechanical switches, the mounting position of the vehicle is limited.

Method used

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  • Communications system for vehicle
  • Communications system for vehicle
  • Communications system for vehicle

Examples

Experimental program
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Embodiment Construction

[0019] Hereinafter, a vehicle communication system according to an embodiment of the present invention will be described with reference to the drawings. This system is installed on electric vehicles.

[0020] Such as figure 1 As shown, the communication system 1 is composed of a battery 2 and an on-board charger 3 electrically connected in parallel to the battery 2, EV-ECU 4, keyless operating system (KOS) 5, body control module (BCM) 6, anti-lock braking system (ABS) 7, and electric power steering system (EPS) 8 and other control units. The on-vehicle charger 3 charges the battery 2 with electric power supplied from an external power supply (AC power supply) not shown. A charger circuit (not shown) is provided on the vehicle charger 3 . The on-board charger 3 converts alternating current into direct current through the charger circuit, or increases the voltage. The EV-ECU 4 electronically controls the electric motor that is the driving source of the vehicle, or monitors ...

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PUM

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Abstract

The invention provides a communications system for a vehicle which can inhibit dark current without being restricted by the design of the vehicle. The communications system for the vehicle includes control units, that receive supply of electricity from an on-vehicle battery to control devices mounted on the vehicle, are connected to the battery via a controller area network (CAN), and monitor the work states of a plurality of working units. At least one of the control units has a power management module. The power management module monitors signals on the CAN to detect a signal indicating whether or not the at least one control unit needs to be activated, and, based on the detected signal, the power management module adjusts the amount of electricity supplied from the battery to the at least one control unit.

Description

technical field [0001] The present invention relates to a communication system for a vehicle, which manages operations among components that operate by receiving power from a battery installed in the vehicle. Background technique [0002] In recent years, systems such as anti-lock braking system (ABS) and electric power steering (EPS) for the purpose of improving safety and operability, or systems for improving convenience such as keyless operating system (KOS) have been installed. The number of cars in the system is constantly increasing. Since these systems are driven by consuming electric power stored in a battery mounted on a vehicle, methods for efficiently using the electric power have been studied. In addition, as opposed to automobiles using an engine as a driving source, automobiles using an electric motor as a driving source are also being developed, which are generally called electric vehicles. Electric vehicles are equipped with various electronic control units...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/18
CPCH04L12/28H04L2012/40215H04L29/00H04L12/12H04L2012/40273G06F7/00H04L12/40039Y02B60/32Y02T10/7005Y02B60/34Y02T90/16Y02D30/50
Inventor 牧野正宽吉田进一稻垣修
Owner KK TOKAI RIKA DENKI SEISAKUSHO