Software upgrading method, device and system, vehicle and storage medium

A technology for equipment and electronic control equipment, applied in the field of vehicles, can solve the problems of slow CAN network communication rate, slow software upgrade process, and large upgrade program.

Active Publication Date: 2021-01-15
BYD CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the slow communication rate of the CAN network and the large upgrade program that needs to be transmitted during the upgrade process, the software up

Method used

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  • Software upgrading method, device and system, vehicle and storage medium
  • Software upgrading method, device and system, vehicle and storage medium
  • Software upgrading method, device and system, vehicle and storage medium

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Embodiment Construction

[0036] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0037] The present disclosure provides a vehicle CAN communication system, which may include: an OBD (On Board Diagnostic) interface connected to the vehicle CAN bus, a plurality of vehicle electronic control devices, and a first terminal resistance and the second terminal resistance, wherein the OBD interface is used to connect the external upgrade device to the CAN bus of the vehicle so that the upgrade device can communicate with the vehicle electronic control device, the first terminal resistance and the second terminal resistance are set in different In the vehicle electronic control device, the resistance values ​​of the first terminal resistor and the ...

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Abstract

The invention relates to a software upgrading method, device and system, a vehicle and a storage medium. The method is applied to vehicle-mounted electric control equipment connected to a whole vehicle CAN bus, the resistance values of a first terminal resistor and a second terminal resistor connected to the whole vehicle CAN bus are both smaller than 120 ohms. The method comprises steps of a first message sent by external upgrading equipment being received at a first communication rate; sending a response message to the upgrading equipment under the condition of determining that the upgradingequipment is the target vehicle-mounted electronic control equipment according to the identification information; if the response message is sent, receiving a second message sent by the upgrading equipment at the first communication rate; in response to the second message, switching the communication rate to a second communication rate; and receiving the upgrading program sent by the upgrading equipment at the second communication rate, and installing the upgrading program. The method is advantaged in that the communication rate can be increased from the first communication rate to the secondcommunication rate on the basis of not replacing the CAN bus of the whole vehicle, transmission of an upgrading program is accelerated, the software upgrading speed is increased, and the software upgrading time is shortened.

Description

technical field [0001] The present disclosure relates to the technical field of vehicles, and in particular, to a software upgrading method, device, system, vehicle and storage medium. Background technique [0002] With the development of vehicle electronic technology, vehicle intelligence is getting higher and higher, and vehicle-mounted electronic control equipment is becoming more and more abundant, both in terms of type and quantity. Vehicle-mounted electronic control equipment integrates software and hardware structures. Upgrading the software of vehicle-mounted electronic control equipment can optimize vehicle-mounted electronic control equipment and improve the performance and safety of vehicles to a certain extent. Therefore, there is a need for software upgrades for vehicle-mounted electronic control equipment. More frequent. Most of the software upgrades of existing vehicle-mounted electronic control devices are performed based on CAN (Controller Area Network, Con...

Claims

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Application Information

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IPC IPC(8): G06F8/65
CPCG06F8/65
Inventor 汪江涛郝兴峰
Owner BYD CO LTD
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