On-Vehicle Control Device and On-Vehicle Control Device Information Update System

• US 20180191866A1
• Filed: 08/05/2016
• Published: 07/05/2018
• Est. Priority Date: 09/29/2015
• Status: Active Grant

• Current Assignee: Hitachi Astemo Ltd. (Hitachi, Ltd.)
• Original Assignee: Hitachi Automotive Systems Limited (Hitachi, Ltd.)
• Granted Patent: US 10,880,404 B2
• Time in Patent Office: Days
• CPC Class Codes: B60R 16/0231 Circuits relating to the driving or the functioning of the vehicle monitoring tyres B60C23/00; indicating overspeed B60K31/00; for dash boards B60K37/00, B60Q3/10; for indicating emergencies B60Q1/52; brake control systems B60T; registering or indicating the working of vehicles G07C5/00; measuring distance G01C, e.g. combinations of speed and distance G01C23/00; engine indicators G01L; measuring speed or acceleration G01P
• CPC Class Codes: G06F 8/65 Updates security arrangements therefor G06F21/57
• CPC Class Codes: H04L 12/12 Arrangements for remote connection or disconnection of substations or of equipment thereof
• CPC Class Codes: H04L 12/40039 Details regarding the setting of the power status of a node according to activity on the bus
• CPC Class Codes: H04L 2012/40273 the transportation system being a vehicle
• CPC Class Codes: H04L 67/34 involving the movement of software or configuration parameters network booting or remote initial program loading [RIPL] G06F9/4416
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management
• CPC Class Codes: Y02D 30/50 in wire-line communication networks, e.g. low power modes or reduced link rate

Abstract

Provided are an on-vehicle control device and an on-vehicle control device information update system that are capable of identifying a subject vehicle by a simple means, while suppressing power consumption, when on-vehicle device information is automatically updated. This on-vehicle control device receives a vehicle response request message from a data server in a power-saving mode in which only a vehicle external communication unit can operate; checks vehicle identification information and on-vehicle control device information that are subject to change and are stored in the message, and vehicle identification information and on-vehicle control device information stored in advance in the vehicle external communication unit and responds with the results to the data server.

Claims

1. An on-vehicle control device transmitting and receiving information with respect to a data server outside a vehicle,

wherein the on-vehicle control device includes a power-saving mode in which only transmission and reception with respect to the data server is capable of being performed, and a normal mode in which communication with respect to other on-vehicle control devices is also capable of being performed,

in the power-saving mode, in the case of receiving a response request from the data server, it is determined whether or not the response request is a response request addressed to a host vehicle, and

in a case where it is determined that the response request is the response request addressed to the host vehicle, a success response is transmitted to the data server, and the on-vehicle control device is transitioned to the normal mode.

2. The on-vehicle control device according to claim 1,

wherein the success response is transmitted to the data server in the case of having a battery residual amount in which the information is capable of being written.

3. The on-vehicle control device according to claim 1,

wherein the success response is transmitted to the data server in a case where management information of an update subject on-vehicle control device stored in the response request and management information of other on-vehicle control devices stored in the on-vehicle control device are coincident with each other.

4. The on-vehicle control device according to claim 1,

wherein the success response is transmitted to the data server, and the on-vehicle control device is transitioned to the normal mode, and then, a Wakeup request is transmitted to all of the on-vehicle control devices other than the update subject on-vehicle control device, which are connected through a vehicle internal communication network.

5. The on-vehicle control device according to claim 1,

wherein the success response which is transmitted to the data server includes any one of vehicle identification information, the management information of the on-vehicle control device, and a determination result.

6. The on-vehicle control device according to claim 1,

wherein a failure reason is stored in a failure response which is transmitted to the data server.

7. The on-vehicle control device according to claim 1,

wherein the determination of whether or not the response request is the response request addressed to the host vehicle is performed by using a vehicle identification number.

8. The on-vehicle control device according to claim 3,

wherein the management information of the other on-vehicle control devices is collected in advance from other on-vehicle control devices connected through a vehicle internal communication network.

9. The on-vehicle control device according to claim 1,

wherein in the case of normally receiving update information from the data server, the update information is written with respect to the on-vehicle control device itself, or the other on-vehicle control devices connected through the vehicle internal communication network.

10. The on-vehicle control device according to claim 9,

wherein in a case where the writing of the update information is normally ended, the effect that update is normally completed is notified to the data server.

11. The on-vehicle control device according to claim 9,

wherein in a case where the writing of the update information is normally ended, an electric device of the vehicle is controlled.

12. An on-vehicle control device information update system transmitting a response request to the on-vehicle control device according to claim 1,

wherein in a case where an update event of information occurs, a response request including vehicle identification information is transmitted to the vehicle from the data server, and

a vehicle in a state in which the information is capable of being updated is specified on the basis of a response with respect to the response request from the vehicle.

13. The on-vehicle control device information update system according to claim 12,

wherein the data server includes a vehicle management database in which specific area information and vehicle identification information of a vehicle in an area represented by the area information are linked to each other.

14. The on-vehicle control device information update system according to claim 13,

wherein the data server includes a vehicle management database in which management information of the on-vehicle control device of the vehicle and the vehicle identification information of the vehicle are linked to each other.

15. The on-vehicle control device information update system according to claim 11,

wherein in a case where the response with respect to the response request from the vehicle is a success response, update information is delivered to a subject vehicle.

16. The on-vehicle control device information update system according to claim 11,

wherein in the case of receiving a notification to the effect that information update from the vehicle is normally ended, the data server updates the management information of the on-vehicle control device of the vehicle management database to the latest information.

17. The on-vehicle control device information update system according to claim 11,

wherein in a case where a wireless communication state stored in the response with respect to the response request from the vehicle is less than or equal to a predetermined value, the update information is not delivered to the subject vehicle.