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ECU software updating method and device, vehicle-mounted T-box and vehicle

A software update device, T-BOX technology, applied in the field of vehicles, can solve the problems of not considering rollback measures, bit errors, vehicles cannot be used, etc., and achieve the effect of saving business operating costs, saving time costs, and improving efficiency.

Active Publication Date: 2018-05-04
国机智骏汽车有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when special diagnostic and maintenance equipment that supports connecting to a remote server via the Internet is required, the vehicle needs to be recalled to the 4S shop for software update; or the rollback measures after the update failure are not considered, and the error caused by the update during the data transmission process is not considered. It is the risk of data being damaged software, a single bit error in the machine code may lead to severe vehicle unusability, urgently needed to be resolved

Method used

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  • ECU software updating method and device, vehicle-mounted T-box and vehicle
  • ECU software updating method and device, vehicle-mounted T-box and vehicle
  • ECU software updating method and device, vehicle-mounted T-box and vehicle

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Embodiment Construction

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0031] The following describes the vehicle ECU software update method, device, vehicle T-BOX and vehicle according to the embodiments of the present invention with reference to the accompanying drawings. First, the vehicle ECU software update method according to the embodiments of the present invention will be described with reference to the accompanying drawings.

[0032] figure 1 It is a flowchart of a method for updating ECU software of a vehicle according to an embodiment of the present invention.

[0033] Such as figure 1 ...

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Abstract

The invention discloses an ECU software updating method and device, a vehicle-mounted T-box and a vehicle. The method comprises the steps that after update detection is completed, a positive responsesent by a target ECU is received, and the positive response is sent to a cloud server; a software update pack pushed by the cloud server is received, and CRC checking is conducted byte by byte in thetransmitting and receiving processes; a first CRC and second CRC sent by the cloud server are obtained, whether the second CRC is identical to the first CRC or not is judged, and if yes, the softwareupdate pack is sent to the target ECU; after the target ECU updates software to an update area through byte-by-byte CRC checking operation, data in the update area is read to a buffer area of the vehicle-mounted T-box, and sent to the cloud server for comparison, if the comparison result indicates the data is identical, a switching instruction is received and sent to target software, and softwareupdate is completed. In the method, software update is completed through multi-time byte-by-byte comparison of the software update pack and CRC checking protection, the software updating safety and efficiency are improved, and the use experience of a user is improved.

Description

technical field [0001] The present invention relates to the technical field of vehicles, in particular to an ECU (Electronic Control Unit, electronic control unit) software updating method and device, a vehicle-mounted T-BOX (Telematics BOX, vehicle-mounted T-BOX) and a vehicle. Background technique [0002] After the pure electric vehicle is sold to the user, the ECU software can be remotely updated through the special ECU of the T-Box of the electric vehicle, but there is a risk of failure in the remote update, and ordinary users cannot properly solve the update due to lack of corresponding professional knowledge. Failure problems may cause the vehicle to not run normally. [0003] In related technologies, some send new software versions to diagnostic maintenance equipment through the Internet, and the diagnostic equipment performs ECU software update; some receive the software update notification message sent by the TSP server through the vehicle-mounted ECU, and judge wh...

Claims

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Application Information

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IPC IPC(8): G06F8/65G06F11/10H04L1/00H04L29/06
CPCG06F8/65G06F11/1004H04L1/0061H04L63/083
Inventor 周毅朱磊
Owner 国机智骏汽车有限公司
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