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OTA manager, update control method, non-transitory storage medium, and vehicle

A technology of manager and storage unit, which is applied to vehicle components, program control design, vehicle wireless communication services, etc., and can solve problems such as long time, bad conditions, and inability to make ECU work

Pending Publication Date: 2022-08-02
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, considering the case where the software update takes a long time due to deterioration of the communication environment during the re-execution of the software update, etc.
In particular, in the case of an ECU equipped with a single-bank memory, if the software update process fails midway, the ECU cannot be operated, and a problem occurs when the vehicle needs to be used in an emergency, so there is room for improvement

Method used

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  • OTA manager, update control method, non-transitory storage medium, and vehicle
  • OTA manager, update control method, non-transitory storage medium, and vehicle
  • OTA manager, update control method, non-transitory storage medium, and vehicle

Examples

Experimental program
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Embodiment Construction

[0016] figure 1 It is a block diagram which shows the whole structure of the network system which concerns on embodiment.

[0017] figure 1 The illustrated network system is a system for updating the software of the electronic control units 13a to 13d mounted on the vehicle, and includes a server 1 (center) and an in-vehicle network 2 mounted on the vehicle.

[0018] The server 1 can communicate with the OTA manager 11 mounted on the vehicle via the network 5, and can manage software updates of the electronic control units 13a to 13d mounted on the vehicle.

[0019] The server 1 includes a CPU, a RAM, a storage device having a readable and writable storage medium such as a hard disk and an SSD, and a communication device for communicating with the OTA manager 11 via the network 5 . The storage device stores a program for executing update management of software, information used in update management, and update data of the electronic control unit. In the server 1 , the CPU e...

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PUM

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Abstract

The invention relates to an OTA manager, an update control method, a non-transitory storage medium, and a vehicle. The OTA manager includes: a receiving unit configured to receive update data of software of a target electronic control unit from a center; a storage unit configured to store the update data; and a control unit configured to control a software update process of the target electronic control unit on the basis of the update data, so that a storage unit holds the update data until the software update process of the target electronic control unit is normally completed, after the processing of the software update by the target electronic control unit is normally completed, the update data is deleted from the storage unit.

Description

technical field [0001] The present disclosure relates to an OTA manager, an update control method, a non-transitory storage medium, and a vehicle. Background technique [0002] A plurality of electronic control units (ECUs) for controlling the operation of the vehicle are mounted on the vehicle. The ECU includes a processor, a temporary storage unit such as a RAM, and a nonvolatile storage unit such as a flash ROM, and the processor executes software stored in the nonvolatile storage unit to realize the control function of the ECU. The software stored in each ECU can be rewritten, and by updating to a newer version of the software, the functions of each ECU can be improved and new vehicle control functions can be added. [0003] As an example of a technique for updating the software of an ECU, there is known a program that performs an ECU by wirelessly connecting an in-vehicle communication device connected to an in-vehicle network to a communication network such as the Int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L67/00H04L67/12G06F8/65G06F8/658H04W4/44
CPCH04L67/34H04L67/12G06F8/65G06F8/658H04W4/44G06F11/1433G06F11/1471G06F8/654G06F8/71G06F3/0488H04W4/48H04L67/125
Inventor 石川智康谷森俊介
Owner TOYOTA JIDOSHA KK