On-board recording system

• US 10,730,518 B2
• Filed: 01/11/2019
• Issued: 08/04/2020
• Est. Priority Date: 07/22/2015
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Kojima, Takashi
• Primary Examiner(s): Cass, Jean Paul
• Application Number:
  US16/246,067
• Publication Number:
  US 20190210601A1
• Time in Patent Office: 571 Days
• Field of Search: 701 36
• CPC Class Codes: B60W 10/18 including control of braking systems
• CPC Class Codes: B60W 10/20 including control of steering systems
• CPC Class Codes: B60W 2400/00 Indexing codes relating to detected, measured or calculated conditions or factors
• CPC Class Codes: B60W 2710/30 Auxiliary equipments
• CPC Class Codes: B60W 30/18 Propelling the vehicle
• CPC Class Codes: G07C 5/02 Registering or indicating driving, working, idle, or waiting time only apparatus forming part of taximeters G07B13/00
• CPC Class Codes: G07C 5/08 Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
• CPC Class Codes: G07C 5/085 using electronic data carriers

Abstract

A system includes a first device and a second device connected via an on-board network. In a case where a driving assistance function is selectively installed on a vehicle, the first device transmits repeatedly a CAN frame having a predetermined CAN-ID from start of the vehicle to stop of the vehicle. The second device receives a CAN frame having a CAN-ID uniquely set for a function with regard to the vehicle. And the second device is configured to: (i) record to both a first recording region and a second recording region of a memory in a case where it is determined that the CAN-ID included in the received CAN frame is the predetermined CAN-ID; and (ii) record only to the second recording region in a case where it is not determined that the CAN-ID included in the received CAN frame is the predetermined CAN-ID.

Claims

1. A system comprising:

a first device comprising a first processor and a first memory and being configured to transmit repeatedly a CAN frame having a predetermined CAN-ID from start of the vehicle to stop of the vehicle; and

a second device connected with the first device via an on-board network and comprising;

a second memory having a first recording region and a second recording region;

a transceiver configured to receive a CAN frame having a CAN-ID uniquely set for a function which is selectively installed on the vehicle; and

a second processor configured to;

(i) determine repeatedly whether the CAN-ID included in the received CAN frame is the predetermined CAN-ID;

(ii) record to both the first recording region and the second recording region in a case where it is determined that the CAN-ID included in the received CAN frame is the predetermined CAN-ID; and

(iii) record only to the second recording region in a case where it is not determined that the CAN-ID included in the received CAN frame is the predetermined CAN-ID.

2. The system according to claim 1, wherein

the first device outputs to the on-board network a control command associated with activation of a driving assistance function, and

the CAN frame comprises the control command.

3. The system according to claim 1, wherein

the predetermined CAN-ID is uniquely given to a driving assistance function.

4. The system according to claim 1, wherein

when it is determined that the CAN-ID included in the received CAN frame is the predetermined CAN-ID, the second processor does not subsequently determine whether the CAN-ID included in the received CAN frame is the predetermined CAN-ID.

5. The system according to claim 1, wherein:

if the vehicle is a gasoline engine vehicle, start of the vehicle comprises turn-on of an ignition key and stop of the vehicle comprises turn-off of the ignition key; and

if the vehicle is an electric vehicle, start of the vehicle comprises start-up of an electronic control unit that performs coordinated control for the entire vehicle and stop of the vehicle comprises stop of the electronic control unit.