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Vehicle control system to prevent relay attack

A technology for vehicles and controllers, which is applied to anti-theft vehicle accessories, vehicle parts, instruments, etc., and can solve problems such as relay attacks and passive entry system security threats

Inactive Publication Date: 2016-08-24
HUF NORTH AMERICA AUTOMOTIVE PARTS MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Passive entry systems are vulnerable to security threats such as relay attacks
A relay attack occurs when the first thief triggers the actuation of the interrogation signal, for example by lifting the door handle

Method used

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  • Vehicle control system to prevent relay attack
  • Vehicle control system to prevent relay attack
  • Vehicle control system to prevent relay attack

Examples

Experimental program
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Embodiment Construction

[0024] now refer to figure 1 , shows a motor vehicle 12 having a passive start and entry system (PEPS) configured to communicate with a personal communication device or token 14 such as a fob, card device or the like. The motor vehicle 12 includes an internal control system including a microcontroller 16 electrically coupled to a low frequency transmitter 18 and a high frequency receiver 20 such as a radio frequency receiver. Of course, other configurations and arrangements are equally possible. For example, microcontroller 16 may be electrically coupled to a high frequency transmitter (not shown) and / or a low frequency receiver (not shown). It should be understood that the term passive entry system herein includes passive engine start systems to which the anti-theft system is applicable.

[0025] As used herein, the phrase "low frequency" generally refers to frequencies in the range of 3KHz to 300KHz. The phrase "high frequency" or "ultra high frequency" (UHF) generally re...

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PUM

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Abstract

A passive entry system for an automotive vehicle that is configured to prevent relay attacks by analyzing magnet vectors and angles created by a plurality of antennas mounted on the vehicle is disclosed. A vehicle including a control unit configured to broadcast a wake-up signal to prompt a fob to power-up if the fob is in a low-power consumption mode and to transmit signals through a plurality of antennas coupled to the vehicle is provided, along with a fob configured to recognize the wake-up signal and to generate a response signal for the control unit in response to recognize the wake-up signal. The fob includes a controller that is programmed to receive signals transmitted from each of the plurality of antennas coupled to the vehicle, retrieve constant values from stored a memory, and calculate a magnetic integrity defining the relative position of each of the plurality of antennas. The controller allows access to the vehicle if magnetic integrity is found, and denies access to the vehicle if magnetic integrity is not found.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Patent Application No. 61 / 911,225, filed December 3, 2013, and U.S. Provisional Patent Application No. 61 / 975,447, filed January 4, 2014, both of which are hereby incorporated by reference in their entirety. Background technique [0003] Traditionally, physical key and lock systems have been used to achieve door access and authorization to start vehicles, such as motor vehicles. In these systems, inserting the correct key into the door and ignition locks enables the user to enter and drive the vehicle. [0004] However, in recent years, the traditional keyless system has multiplied and in many cases has been replaced by remote keyless entry (RKE) devices, in which the user is able to Devices such as a key fob or a button on a key fob to open their motor vehicle. In these systems, authorization to drive typically continues to be provided by a physical key and lock ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R25/24
CPCB60R25/245B60R25/406B60R2325/108G07C9/00309G07C9/00722G07C2009/0038G07C2009/00412G07C2009/00547G07C9/21H04Q2209/40H04W12/104G07C2009/00555G07C2009/00984
Inventor 罗易约翰·南茨
Owner HUF NORTH AMERICA AUTOMOTIVE PARTS MFG
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