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A system, method and vehicle for software upgrade of multiple controllers of a vehicle based on usb communication

A software upgrade and multi-controller technology, applied in software deployment, instruments, climate sustainability, etc., can solve problems such as high cost, complex system principle and composition, and achieve improved efficiency, simple upgrade method, and flexible electrical architecture Effect

Active Publication Date: 2022-04-29
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be seen that the system architecture of this USB master-slave device needs to add a separate USB hub, the system principle and composition are more complicated, and the cost is higher.

Method used

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  • A system, method and vehicle for software upgrade of multiple controllers of a vehicle based on usb communication
  • A system, method and vehicle for software upgrade of multiple controllers of a vehicle based on usb communication
  • A system, method and vehicle for software upgrade of multiple controllers of a vehicle based on usb communication

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Embodiment Construction

[0018] pass below Figure 2 ~ Figure 3 As well as listing some optional embodiments of the present invention, the technical solutions (including preferred technical solutions) of the present invention are further described in detail. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0019] Aiming at the problem of background technology, this patent designs a USB hub, which divides one USB port into multiple USB ports, and there is no processor, no USB communication protocol and software in the USB hub, and the system configuration and principle are as follows: figure 2 . One USB port of the USB hub is connected to the USB master device, and the remaining USB ports are respectively connected to the USB slave...

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Abstract

The patent discloses a system, a method and a vehicle for upgrading software of multiple controllers of a vehicle based on USB communication. A USB hub is designed in the patent, which divides one USB port into multiple USB ports for connecting a USB master device and multiple USB slave devices. When a certain USB slave device needs to upgrade the software, the USB master device controls the USB port of the USB slave device to be enabled through the CAN bus, and the USB ports of the other USB slave devices are disabled, thereby establishing a connection between the USB master device and the USB slave device. The USB communication channel of the device completes the transmission and download of the USB slave device upgrade software, and upgrades the controller software after the upgrade software download is completed. The principle and structure of this patent are simple, and do not consume additional electric energy of the vehicle; when the USB master device and the slave device communicate, there will be no data delay, and the transmission rate of the USB master device can be fully utilized to improve the efficiency of software upgrades.

Description

technical field [0001] The invention belongs to the technical field of automotive electronic and electrical parts, and specifically discloses a system, a method and a vehicle for upgrading software of multiple controllers of a vehicle based on USB communication. Background technique [0002] With the development of automotive electronics and control technology, there are more and more controllers on the car, and the complexity of the controller software is getting higher and higher. During the development process and even after sales, it is often necessary to upgrade the software of multiple controllers; Moreover, the capacity of the controller upgrade software is getting larger and larger, ranging from tens of megabytes to hundreds of megabytes. The traditional CAN communication, because the bandwidth is up to 1M / s, can no longer meet the bandwidth requirements of the vehicle controller software upgrade. A feasible way is to upgrade the software through USB. When upgradin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F8/65G06F13/362G06F13/40
CPCG06F8/65G06F13/362G06F13/4068G06F2213/0042Y02D10/00
Inventor 汪思泉邹淼淼胡炼杨金菊刘燕
Owner DONGFENG MOTOR CORP HUBEI