VEHICLE INFORMATION RECORDING SYSTEM

• US 20100023207A1
• Filed: 03/21/2008
• Published: 01/28/2010
• Est. Priority Date: 04/02/2007
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Sugino, Kimihiko, Akutsu, Daigo, Maeda, Fumio
• Granted Patent: US 8,190,323 B2
• Time in Patent Office: Days
• US Class Current: 701/35
• CPC Class Codes: G07C 5/085 using electronic data carriers

Abstract

A vehicle information recording system has an ECU and the like to detect an abnormal event that occurs on the vehicle, a vehicle state determination unit to determine a vehicle state including at least one of a running state and a running environment of the vehicle based on an output value and a threshold of a sensor and a switch provided in various parts of the vehicle, and a memory unit to record a vehicle state when an abnormal event is detected, which is determined by the vehicle state determination unit, and a duration time of the vehicle state determined by the vehicle state determination unit from when the output value exceeds the threshold to when the abnormal event is detected.

Claims

1. A vehicle information recording system comprising:

an abnormality detecting unit to detect an abnormal event generated on a vehicle;

a vehicle state determination unit to determine a vehicle state including at least one of a running state and a running environment of the vehicle based on an output value and a threshold of a sensor provided to operate in various parts of the vehicle; and

a memory unit to record the vehicle state when the abnormal event is detected, which vehicle state is determined by the vehicle state determination unit, and a duration time of the vehicle state determined by the vehicle state determination unit from when the output value exceeds the threshold to when the abnormal event is detected.

2. The vehicle information recording system as claimed in claim 1, wherein the vehicle state before the output value exceeds the threshold, which vehicle state is determined by the vehicle state determination unit, and the duration time of the vehicle state before the output value exceeds the threshold are also recorded.

3. The vehicle information recording system as claimed in claim 1, wherein a duration time of the vehicle state during which the output value exceeds the threshold is recorded.

4. The vehicle information recording system as claimed in claim 3, wherein a cumulative duration time of the vehicle state during which the output value exceeds the threshold is recorded.

5. The vehicle information recording system as claimed in claim 1, wherein the number of times that the output value exceeds the threshold is recorded.

6. The vehicle information recording system as claimed in claim 5, wherein the number of trips in which the output value exceeds the threshold is recorded.

7. The vehicle information recording system as claimed in claim 1, wherein the threshold is set in accordance with a number of the vehicle states determined by the vehicle state determination unit.

8. The vehicle information recording system as claimed in claim 1, wherein the threshold is set in accordance with an environment where the vehicle is used.

9. The vehicle information recording system as claimed in claim 1, wherein the vehicle state determined by the vehicle information recording system is at least one of a state in which the output value of the sensor exceeds the threshold a predetermined number of times, a state in which the output value of the sensor exceeds the threshold for a predetermined period, a state in which the output value of the sensor becomes higher than the threshold, and a state in which the output value of the sensor becomes lower than the threshold.

10. A vehicle information recording system comprising:

an abnormality detecting unit to detect an abnormal event generated on a vehicle;

a vehicle state determination unit to determine a vehicle state including at least one of a running state and a running environment of the vehicle based on an output value and a threshold of a sensor provided to operate in various parts of the vehicle; and

a memory unit to record a vehicle state of when the abnormal event is detected, which vehicle state is determined by the vehicle state determination unit, and a duration time of the vehicle state determined by the vehicle state determination unit from when the output value exceeds the threshold to when the abnormal event is detected,

wherein a time unit of the duration time is set in accordance with a change rate of the vehicle state which is determined by the vehicle state determination unit.

11. The vehicle information recording system as claimed in claim 10, wherein the vehicle state before the output value exceeds the threshold, which is determined by the vehicle state determination unit, and the duration time of the vehicle state before the output value exceeds the threshold are also recorded.

12. The vehicle information recording system as claimed in claim 10, wherein a duration time of the vehicle state during which the output value exceeds the threshold is recorded.

13. The vehicle information recording system as claimed in claim 12, wherein a cumulative duration time of the vehicle state during which the output value exceeds the threshold is recorded.

14. A vehicle information recording system comprising:

an abnormality detecting unit to detect an abnormal event generated on a vehicle;

a vehicle state determination unit to determine a vehicle state including at least one of a running state and a running environment of the vehicle based on an output value and a threshold of a sensor provided to operate in various parts of the vehicle; and

a memory unit to record the vehicle state when the abnormal event is detected, which vehicle state is determined by the vehicle state determination unit, and a duration time of the vehicle state determined by the vehicle state determination unit from when the output value exceeds the threshold to when the abnormal event is detected,

wherein the vehicle state when the abnormal event is detected and the duration time thereof are recorded in the memory unit based on generation of a diagnostic trouble code corresponding to the abnormal event.

15. The vehicle information recording system as claimed in claim 14, wherein the abnormality detecting unit detects a shock against the vehicle.

16. The vehicle information recording system as claimed in claim 14, wherein the vehicle state before the output value exceeds the threshold, which vehicle state is determined by the vehicle state determination unit, and the duration time of the vehicle state before the output value exceeds the threshold are also recorded.

17. The vehicle information recording system as claimed in claim 16, wherein a duration time of the vehicle state during which the output value exceeds the threshold is recorded.

18. The vehicle information recording system as claimed in claim 17, wherein a cumulative duration time of the vehicle state during which the output value exceeds the threshold is recorded.