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Vehicle keyless entry method and system

A keyless entry and vehicle technology, applied in the field of smart cars, can solve problems such as long vehicle network wake-up time, and achieve the effect of reducing information interaction time, saving wake-up time, and speeding up information interaction

Active Publication Date: 2016-03-02
SAIC MOTOR
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AI Technical Summary

Problems solved by technology

However, the existing keyless entry solution has the problem of long wake-up time of the vehicle network

Method used

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  • Vehicle keyless entry method and system
  • Vehicle keyless entry method and system

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Embodiment Construction

[0024] In the existing automobile technology, for some middle and low-end cars or some cars with a long production year, the PEPS system is not equipped, and users can install the PEPS system according to their own needs. For vehicles equipped with the PEPS system, the PEPS system communicates with the body controller BCM through the CAN bus to realize the function of keyless entry. However, the existing keyless entry solution has the problem of long wake-up time of the vehicle network.

[0025] In the embodiment of the present invention, waking up the BCM through the LIN bus can effectively save the waking time of the BCM; sending the door operation instruction and the first key to the BCM through the LIN bus can speed up the information interaction between the PEPS controller and the BCM, Therefore, the wake-up time of the vehicle network in the keyless entry scheme can be effectively reduced.

[0026] In order to make the above objects, features and advantages of the embod...

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Abstract

The invention provides a vehicle keyless entry method and system. The keyless entry method comprises the following steps: by a PEPS controller, receiving the signal of a door handle switch sensor, awakening a CAN bus, and awakening a BCM through an LIN bus; by the PEPS controller, sending a vehicle door operation instruction and a first secret key to the BCM through the LIN bus; by the PEPS controller, awakening a key, and sending a second secret key to the key; and by the BCM, receiving the vehicle door operation instruction, the first secret key and a third secret key produced by encrypting the second secret key through the key, authenticating the first secret key and the third secret key, and when authentication succeeds, executing corresponding operation according to the vehicle door operation instruction, wherein the vehicle door operation instruction is associated with the state information of a vehicle after the former keyless entry operation. By adopting the method and the system, vehicle network awakening time required by keyless entry schemes can be effectively reduced.

Description

technical field [0001] The invention relates to the field of smart cars, in particular to a vehicle keyless entry method and system. Background technique [0002] With the continuous advancement of electronic technology, modern cars are becoming more and more intelligent. The keyless entry and start (Passive Entry and Passive Start, PEPS) system can complete the opening and locking of the car door according to the smart key carried by the car owner. After entering the car, only need to turn on the start button to start the car, which greatly reduces the traditional Steps and when to unlock the doors and start the vehicle. [0003] In the existing automobile technology, many automobile manufacturers and dealers use the PEPS function as an optional function, and users can decide whether to install the PEPS system according to their own needs. For vehicles equipped with the PEPS function, the PEPS system communicates with the Body Control Module (BCM) through the Controller A...

Claims

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Application Information

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IPC IPC(8): B60R25/24B60R16/023
Inventor 刘超群朱英胡乃杰董晓德张慧豫王磊朋赵艮华
Owner SAIC MOTOR
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