FAILURE DETECTION DEVICE, FAILURE DETECTION SYSTEM AND FAILURE DETECTION METHOD

• US 20090248239A1
• Filed: 03/26/2009
• Published: 10/01/2009
• Est. Priority Date: 03/27/2008
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Iwaki, Hideaki
• Granted Patent: US 7,831,348 B2
• Time in Patent Office: Days
• US Class Current: 701/33
• CPC Class Codes: B60W 50/02 Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
• CPC Class Codes: F02D 41/22 Safety or indicating devices for abnormal conditions in air/fuel ratio feedback systems F02D41/1495, in electric control linkage F02D11/107, in purge control systems F02M25/0809
• CPC Class Codes: F02D 41/26 using computer, e.g. microprocessor
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C

Abstract

A failure detection device is provided that includes a failure detecting portion that detects a failure in an on-board device and sends failure information and failure notification information; a collection portion that is related to the failure detecting portion for control and receives and collects the failure information sent by the failure detecting portion; and a control portion that receives the failure notification information sent by the failure detecting portion and then sends failure reception information to the collection portion. The collection portion further receives and collects the failure reception information. The failure detection device further includes a determining portion that identifies the failure information from the failure information and the failure reception information collected by the collection portion.

Claims

1. A failure detection device comprising:

a failure detecting portion that detects a failure in an on-board device and sends failure information and failure notification information;

a collection portion that receives and collects the failure information sent by the failure detecting portion;

a control portion that is related to the failure detecting portion for control, and receives the failure notification information sent by the failure detecting portion and then sends failure reception information to the collection portion;

the collection portion further receiving and collecting the failure reception information; and

a determining portion that identifies the failure information from the failure information and the failure reception information collected by the collection portion.

2. The failure detection device according to claim 1, wherein the control portion comprises a plurality of control portions,

the failure detecting portion sends the failure notification information to one of the plurality of control portions, upon detecting the failure in the on-board device, and the one of the plurality of control portions sends the failure notification information to another one of the plurality of control portions, upon receiving the failure notification information from the failure detecting portion.

3. The failure detection device according to claim 1, wherein the determining portion is provided in advance with combination information of the failure information and the failure reception information, and identifies the failure information from the failure information and the failure reception information collected by the collection portion based on the combination information.

4. The failure detection device according to claim 3, wherein the combination information defines a temporal order of the failure information and the failure reception information that are supposed to be received by the collection portion when the failure occurs in the on-board device.

5. The failure detection device according to claim 1, wherein the determining portion identifies the failure information based on a comparison between element information included in the failure information and element information included in the failure reception information.

6. The failure detection device according to claim 5, wherein the element information included in the failure information has a field that does not appear in the element information included in the failure information, and the determining portion identifies the failure information by finding the field.

7. The failure detection device according to claim 1, further comprising a transmission portion that transmits the failure information identified by the determining portion to a roadside center.

8. A failure detection system comprising:

the failure detection device according to claim 7; and

the roadside center.

10. The failure detection method according to claim 6, further comprising transmitting the identified failure information to a roadside center.

9. A failure detection method comprising:

detecting a failure in an on-board device;

sending failure information when the failure of the on-board device is detected;

receiving and collecting the failure information;

sending failure notification information when the failure of the on-board device is detected;

sending failure reception information when the failure notification information is received;

receiving and collecting the failure reception information; and

identifying the failure information from the failure information and the failure reception information collected.

11. A failure detection device comprising:

failure detecting means for detecting a failure in an on-board device and sending failure information and failure notification information;

collection means for receiving and collecting the failure information sent by the failure detecting means;

control means, related to the failure detecting means for control, for receiving the failure notification information sent by the failure detecting means and then sending failure reception information to the collection means;

the collection means further receiving and collecting the failure reception information; and

determining means for identifying the failure information from the failure information and the failure reception information collected by the collection means.