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Vehicle information communication system

一种通信系统、车辆信息的技术，应用在车辆无线通信服务、传输系统、车载通讯等方向，能够解决服务器施加较大负荷等问题

Pending Publication Date: 2021-03-30
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, assuming a system in which configuration information is sent from each vehicle to the center device at a predetermined timing, and the center device manages the information, if a large amount of data is sent from a plurality of vehicles at once, a large load may be imposed on the server on the center device side. load

Method used

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Examples

Experimental program
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Effect test

no. 1 approach

[0283] Below, refer to Figure 1 to Figure 20 A first embodiment of the present invention will be described. The program rewriting system for a vehicle is a system that can rewrite application programs such as vehicle control and diagnosis of an ECU mounted in a vehicle via OTA. like figure 1 As shown, the vehicle program rewriting system 1 includes a center device 3 on the communication network 2 side, a vehicle-side system 4 on the vehicle side, and a display terminal 5 . The communication network 2 is configured including, for example, a mobile communication network based on a 4G line or the like, the Internet, WiFi (Wireless Fidelity: Wireless Fidelity) (registered trademark), and the like.

[0284] The display terminal 5 is a terminal having a function of accepting operation input from the user and displaying various screens, and is, for example, a portable terminal 6 such as a smart phone or a tablet computer that the user can carry, a display that doubles as a naviga...

no. 2 approach

[0367] like Figure 21 As shown, the second embodiment involves the Figure 8 The "vehicle structure information synchronization" that the vehicle-side system 4 initially sends to the center device 3 . When the IG switch 37 on the vehicle side is turned on, the CGW 13 sends a "synchronization start request" to the DCM 12 as a trigger. DCM12 receives this "synchronization start request" and returns "configuration information collection request" to CGW13. Then, the CGW 13 inquires about the program version of each ECU 19 . Each ECU 19 returns "ECU SW ID" to the CGW 13 . In addition, the ECU 19 having a memory configuration of two planes or a suspension also collectively returns to the CGW 13 plane information indicating which of a plurality of planes is an operating plane and which is a non-operating plane. In addition, each ECU 19 may collectively transmit to the CGW 13 calibration information of actuators to be controlled, permission information for receiving program updat...

no. 3 approach

[0395] The third embodiment relates to a function executed by the event management unit 3D of the center device 3 in order to increase the update rate of the application programs in the vehicle-side system 4 . like Figure 24 As shown, for example, in the vehicle-side system 4 , the user presets the interval of HTTP polling to about 3 days through the Config file, whereby the vehicle-side system 4 periodically checks whether the application is updated with the center device 3 . As a result, the center device 3 notifies the vehicle-side system 4 of "update" when the update confirmation is performed after setting the activity information of the VIN for the vehicle corresponding to the activity DB 217 . That is, as described in the second embodiment, when the configuration information is uploaded from the vehicle-side system 4 using HTTP, the update confirmation by the center device 3 is executed at the timing of IG connection after 3 days.

[0396] If it is configured to update...

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Abstract

When a vehicle-side system 4 receives configuration information pertaining to the configuration of a plurality of ECUs 19 from the respective ECUs 19, the vehicle-side system 4 generates a hash valuebased on data values for a plurality of items of configuration information, and transmits the hash value to a central device 3. The central device 3 comprises an individual vehicle information database 113, and compares the hash value transmitted by the vehicle-side system 4 with the hash value from the vehicle configuration information stored in the individual vehicle information database 113, and requests the vehicle-side system 4 to transmit "Configuration Information ALL" if the hash values do not match. The vehicle-side system 4 receives the aforementioned transmission and transmits the "Configuration Information ALL" to the central device 3, and when the central device 3 receives the "Configuration Information ALL", the central device 3 updates the configuration information stored inthe individual vehicle database 113 on the basis of the data values of the "Configuration Information ALL".

Description

[0001] Cross References to Related Applications [0002] This application is based on Japanese Application No. 2018-151414 filed on August 10, 2018, and Japanese Application No. 2019-129950 filed on July 12, 2019, the contents of which are cited here. technical field [0003] The present disclosure relates to a vehicle information communication system including a center device that manages data written in a plurality of electronic control devices mounted on a vehicle, and an in-vehicle device mounted on the vehicle. Background technique [0004] In recent years, with the diversification of vehicle control such as driving assistance functions and automatic driving functions, the scale of applications such as vehicle control and diagnostics installed in electronic control units (hereinafter referred to as ECU (Electronic Control Unit)) of vehicles has increased. big. In addition, opportunities for rewriting (reprogramming) applications of ECUs are increasing along with versio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F8/65B60R16/02
CPCG06F8/658G06F21/57H04L67/02H04L43/0876B60R16/0231G06F8/65G06F8/654B60W60/001B60R16/03B60R16/023G06F16/2379G06F16/2365H04W4/48H04W4/14G06F9/445G06F21/44G06F21/51G06F2221/033G06F3/0604G06F3/0659G06F3/0673G07C5/0808
Inventor 樱井那央高桥修平原田雄三上原一浩长谷川拓矢河崎卓也早川和明
Owner DENSO CORP
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