Vehicle control device, program update method, and program update system

A control device and vehicle control technology, applied to vehicle components, vehicle wireless communication services, communication between vehicles and infrastructure, etc., can solve problems such as longer time, and achieve the effect of suppressing interruptions

Pending Publication Date: 2021-05-04
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When an interruption of such processing occurs, the time from the start to completion of the program update processing becomes longer.

Method used

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  • Vehicle control device, program update method, and program update system
  • Vehicle control device, program update method, and program update system
  • Vehicle control device, program update method, and program update system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment

[0038] image 3 It is a flowchart explaining the procedure of the program update process according to the first embodiment which can be executed by the control device 120 . Figure 4A as well as Figure 4B This is an example of a time chart of the program update process according to the first embodiment.

[0039] For example, if the power supply of the vehicle 100 is turned on, the image 3 treatment shown.

[0040] Step S301

[0041] The control unit 122 of the control device 120 inquires of the vehicle management server 200 via the communication unit 121 whether there is an update to the existing program stored in the first storage area 1231 of the storage unit 123 .

[0042] Step S302

[0043] The control unit 122 of the control device 120 receives a reply to the inquiry from the vehicle management server 200 via the communication unit 121 . When the control unit 122 receives an answer that there is an update from the vehicle management server 200 (step S302, YES), th...

no. 2 Embodiment

[0056] Figure 5A as well as Figure 5B It is a flowchart explaining the procedure of the program update process according to the second embodiment that can be executed by the control device 120 . Figure 5A processing with Figure 5B The processes of are connected through connection points X and Y respectively. Figure 6A as well as Figure 6B This is an example of a time chart of the program update process according to the second embodiment.

[0057] In this second embodiment, in addition to the processing of the above-described first embodiment, processing for displaying update status information on the screens of the display device 130, the mobile device 300, and the like is added.

[0058] As an example of the update status information, an update notification showing that there is an update program, a DL (download) permission request to request permission from the vehicle user for downloading the update program from the vehicle management server 200 to the control dev...

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PUM

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Abstract

The invention provides a vehicle control device, a program update method, and a program update system. The vehicle control device includes a memory having a first storage area for storing a program related to vehicle control and a second storage area for storing an update program for updating the program, and a controller configured to determine whether a vehicle is in a stop state and start an update process of updating the program stored in the first storage area with the update program stored in the second storage area when the controller determines that the vehicle is in the stop state.

Description

technical field [0001] The present invention relates to a vehicle control device, a program update method, and a program update system. Background technique [0002] A vehicle is equipped with a plurality of control devices called ECUs (Electronic Control Units). A control device such as an ECU includes a storage unit storing one or more programs executed by a control unit such as one or more CPUs, and executes respective functions. In order to improve the function of the control device, it is proposed to rewrite and update the program stored in the storage unit into a newer version. In particular, it is proposed that the vehicle receives data for program update from an external server through wireless communication so that the program can be updated without going to a repair factory or the like. [0003] Japanese Patent Laid-Open No. 2011-148398 discloses a program update system for updating a program installed in an ECU mounted in a vehicle. In this system, since the ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F8/65B60R16/02
CPCG06F8/65B60R16/02H04W4/44
Inventor 石川智康有我崇德
Owner TOYOTA JIDOSHA KK
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