Invention Grant
US08930045B2 Relay attack prevention for passive entry passive start (PEPS) vehicle security systems
有权
被动进入被动启动（PEPS）车辆安全系统的继电器攻击预防
- Patent Title: Relay attack prevention for passive entry passive start (PEPS) vehicle security systems
- Patent Title (中): 被动进入被动启动（PEPS）车辆安全系统的继电器攻击预防
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Application No.: US13874519Application Date: 2013-05-01
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Publication No.: US08930045B2Publication Date: 2015-01-06
- Inventor: Todd P. Oman , Kevin J. Hawes
- Applicant: Delphi Technologies, Inc.
- Applicant Address: US MI Troy
- Assignee: Delphi Technologies, Inc.
- Current Assignee: Delphi Technologies, Inc.
- Current Assignee Address: US MI Troy
- Agent Lawrence D. Hazelton
- Main IPC: G05D1/00
- IPC: G05D1/00 ; B60R25/10 ; B60R25/01
Abstract:
A passive entry passive start (PEPS) vehicle security system configured to thwart a relay attack on the system. The system includes one or more ultra wideband transceivers (UWBX) installed on a vehicle and configured to transmit a request pulse at a request time. A mobile UWBX, possibly installed in a nomadic device such as a smart phone, is configured to transmit a reply pulse in response to the request pulse. A controller is configured to determine a distance between each UWBX and the mobile UWBX based on a time interval between the request time and a time that corresponds to when the reply pulse is received by the each UWBX. The controller may also be configured to unlock doors of the vehicle only if the distance is less than an unlock threshold.
Public/Granted literature
- US20140330449A1 RELAY ATTACK PREVENTION FOR PASSIVE ENTRY PASSIVE START (PEPS) VEHICLE SECURITY SYSTEMS Public/Granted day:2014-11-06
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