KPD (key position detection) authentication method and system for vehicle and smart key and vehicle base station

A technology for smart keys and vehicles, applied in the field of PEPS, can solve problems such as time-consuming, increased instability factors of vehicle base stations and smart keys, and cumbersome KPD authentication process, so as to enhance practicability and reduce the possibility of unstable factors. The effect of successful certification

Active Publication Date: 2013-06-26
天津经纬恒润科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a KPD authentication method for vehicles and smart keys, a vehicle base station and a system to solve the cumbersome and time-consuming KPD authentication process for vehicles and smart keys in the prior art, and, The problem of the possibility of unstable factors in the communication process between the vehicle base station and the smart key has been added, and the technical solution is as follows:

Method used

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  • KPD (key position detection) authentication method and system for vehicle and smart key and vehicle base station
  • KPD (key position detection) authentication method and system for vehicle and smart key and vehicle base station
  • KPD (key position detection) authentication method and system for vehicle and smart key and vehicle base station

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Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1 of the present invention provides a KPD authentication method for a vehicle and a smart key. The vehicle base station corresponding to the smart key is provided with a timer. figure 1 A schematic flow chart of the method is shown, and the method may include:

[0046] S101: Send encrypted coded identity authentication information to the smart key at low frequency, and start a timer.

[0047] S102: Determine whether the time of the timer reaches the set time, and when the time of the timer reaches the set time, go to step S103; otherwise, do not perform any operation.

[0048] S103: Send a low-frequency carrier wave to the smart key through low frequency to initiate position authentication to the smart key.

[0049] S104: Receive the authentication result sent by the smart key through high frequency, wherein the authentication result includes: the identity authentication result obtained by decrypting and decoding the identity authentication information by the ...

Embodiment 2

[0054] Embodiment 2 of the present invention provides a KPD authentication method for a vehicle and a smart key. The vehicle base station corresponding to the smart key is provided with a timer. figure 2 A schematic flow chart of the method is shown, and the method may include:

[0055] S201: Send encrypted coded identity authentication information to the smart key at low frequency, and start a timer.

[0056] Wherein, the identity authentication information sent by the vehicle base station to the smart key through low frequency may include: message header, first data and message trailer. The first data includes: smart key ID, random array, first ciphertext and CRC check byte. The first ciphertext is generated by the vehicle base station by encrypting the original data with the first encryption algorithm, wherein the original data includes: smart key ID, smart key key SK, random array and password.

[0057] S202: Determine whether the time of the timer reaches the set time,...

Embodiment 3

[0070] Embodiment 3 of the present invention provides a vehicle base station, the vehicle base station is provided with a timer, image 3 It shows a schematic structural diagram of the vehicle base station, which may include: a first sending unit 101, a starting unit 102, a first judging unit 103, a second sending unit 104, a receiving unit 105, a second judging unit 106 and an execution unit 107. in:

[0071] The first sending unit 101 is configured to send encrypted and coded identity authentication information to the smart key at a low frequency to initiate identity authentication.

[0072] The starting unit 102 is configured to start the timer when the first sending unit 101 sends identity authentication information to the smart key.

[0073] The first judging unit 103 is configured to judge whether the time of the timer reaches the set time.

[0074] The second sending unit 104 is configured to send a low-frequency carrier wave to the smart key at a low frequency to in...

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Abstract

The invention provides a KPD (key position detection) authentication method and system for a vehicle and a smart key and a vehicle base station. The method comprises the following steps of: sending encrypted and coded identity authentication information to the smart key through low frequency so as to initiate identity authentication and starting a timer; when the time of the timer reaches set time, sending a low-frequency carrier wave to the smart key through low frequency so as to initiate position authentication; receiving authentication results sent by the smart key through high frequency, wherein the authentication results include an identity authentication result obtained in a manner that the smart key decrypts and decodes the identity authentication information and a measurement result obtained through measuring the field intensity of the low-frequency carrier wave; and judging whether the identity and position of the smart key are legal or not according to the identity authentication result and the measurement result, and executing related operations when the identity and position of the smart key are legal. The method, the system and the vehicle base station, provided by the invention, have the advantages that the time for KPD authentication is greatly shortened, the probability that unstable factors appear in a communication process is reduced, and the practicability of PEPS (Passive Entry & Push Start Systems) is enhanced.

Description

technical field [0001] The invention relates to the technical field of PEPS, in particular to a KPD authentication method for a vehicle and an intelligent key, a vehicle base station and a system. Background technique [0002] With the development of technology and the popularization of automobiles, automobiles are becoming more and more intelligent, and PEPS technology has become an important configuration for the comfort of intelligent automobiles. As the key technology of PEPS, the KPD certification of vehicles and smart keys has great application prospects. [0003] In the prior art, the KPD authentication process of the vehicle and the smart key is as follows: the vehicle base station sends identity authentication information through low frequency; to the vehicle base station; the vehicle base station receives the high-frequency authentication result, and analyzes whether the high-frequency authentication result is legal. If it is legal, it sends a low-frequency carrie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32B60R25/00
Inventor 付宽郭光超吴云平
Owner 天津经纬恒润科技有限公司
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