ELECTRONIC KEY SYSTEM

• US 20150291128A1
• Filed: 10/23/2013
• Published: 10/15/2015
• Est. Priority Date: 10/25/2012
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Satake, Shuuji, Kanazawa, Akiyoshi
• Granted Patent: US 9,457,766 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60R 25/241 whereby access privileges are related to the identifiers
• CPC Class Codes: B60R 25/34 of conditions of vehicle components, e.g. of windows, door locks or gear selectors
• CPC Class Codes: G07C 2009/00412 the transmitted data signal being encrypted
• CPC Class Codes: G07C 9/00309 operated with bidirectional data transmission between data carrier and locks

Abstract

An electronic key system enabling to improve security against vehicle theft is provided. A smart ECU acquires encrypted data from an electronic key. When all identification data stored in a memory and a memory of an electronic component embedding connector correspond to the identification data transmitted from the electronic key, the smart ECU cancels security and permits operations of a door lock driving unit, a steering lock driving unit, and an engine control unit.

Claims

1. An electronic key system comprising:

a control unit acquiring an identification data from an electronic key, being allowed to operate when the acquired identification data is authorized and security is canceled, and being connected to a first in-vehicle unit;

a first wiring harness connected to the control unit;

a second wiring harness connected to a second in-vehicle unit;

a connector connecting the first wiring harness to the second wiring harness, the control unit and the connector respectively including memories embedded therein prestoring the identification data; and

a security canceling unit canceling security when all the identification data stored in the memories embedded in the control unit and the connector correspond to the identification data transmitted from the electronic key.

2. The electronic key system according to claim 1, wherein the connector includes an attaching/detaching detecting unit embedded therein detecting attaching and detaching of the control unit, and wherein after the attaching/detaching detecting unit detects that the control unit has been detached, the security canceling unit avoids canceling security.