Failure detection device, failure detection system and failure detection method

• US 7,831,348 B2
• Filed: 03/26/2009
• Issued: 11/09/2010
• Est. Priority Date: 03/27/2008
• Status: Expired due to Fees

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Iwaki, Hideaki
• Primary Examiner(s): Zanelli; Michael J.
• Application Number:
  US12/411,829
• Publication Number:
  US 20090248239A1
• Time in Patent Office: 593 Days
• Field of Search: None
• 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 means for detecting a failure in an on-board device and sends failure information;

a collection means for receiving and collecting the failure information; and

a control means for controlling the failure detecting means;

wherein the failure detecting means sends failure notification information to the control means, upon detecting the failure in the on-board device;

the control means receives the failure notification information and then sends failure reception information to the collection means;

the collection means receives and collects the failure reception information; and

the failure detection device further comprises a determining means for identifying the failure information from the failure information and the failure reception information collected by the collection means.

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

3. The failure detection device according to claim 1, wherein the determining means 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.

4. The failure detection device according to claim 3, further comprising a transmission means for transmitting the failure information identified by the determining means to a roadside center.

5. A failure detection system comprising:

the failure detection device according to claim 4; and

the roadside center.

6. A failure detection method comprising:

a failure detecting step of detecting a failure in an on-board device and sending failure information;

a failure information collecting step of receiving and collecting the failure information;

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

a failure reception information sending step of sending failure reception information when the failure notification information is received;

a failure reception information collecting step of receiving and collecting the failure reception information; and

a determining step of identifying the failure information from the failure information and the failure reception information collected.

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