Driver recording apparatus

• US 9,235,939 B2
• Filed: 03/07/2011
• Issued: 01/12/2016
• Est. Priority Date: 03/07/2011
• Status: Active Grant

• Current Assignee: Denso International America Incorporated (DENSO Corporation)
• Original Assignee: Denso International America Incorporated (DENSO Corporation)
• Inventors: Sun, Bo, Miura, Hisanori, Hattori, Hiroshi
• Primary Examiner(s): Holloway, Jason
• Assistant Examiner(s): Bendidi, Rachid
• Application Number:
  US13/041,494
• Publication Number:
  US 20120232740A1
• Time in Patent Office: 1,772 Days
• Field of Search: 701/29.1, 701/32.2
• US Class Current: 1/1
• CPC Class Codes: G06F 11/0739 in a data processing system embedded in automotive or aircraft systems
• CPC Class Codes: G06F 11/0748 in a remote unit communicating with a single-box computer node experiencing an error/fault remote testing G06F11/2294
• CPC Class Codes: G06F 11/0787 Storage of error reports, e.g. persistent data storage, storage using memory protection
• CPC Class Codes: G07C 2205/02 using a vehicle scan tool
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: G07C 5/085 using electronic data carriers

Abstract

In order to make it more difficult to alter the recorded data in an event data recorder, a plurality of electric control devices may each have a memory device and may each play a respective role in the vehicle. A data assignment device may be connected to the plurality of electric control devices and the data assignment device may assign a part of drive record data to one of the plurality of electric control devices to store the part of drive record data. The data assignment device may also assign the rest of the drive record data to the rest of the plurality of electric control devices to store the rest of the drive record data.

Claims

1. An event data recorder for a vehicle comprising:

a plurality of electric controllers each having a separate memory device, the plurality of electric controllers each playing a respective role in the vehicle, and

a data assignment device connected to each of said plurality of electric controllers, wherein,

the data assignment device assigns a first distinct portion of drive record data which is less than all of the drive record data to be recorded on the memory device of a first one of the plurality of electric controllers to store the first distinct portion of the drive record data, and

the data assignment device assigns the rest of the drive record data to the memory devices of the rest of the plurality of electric controllers to store the rest of the drive record data,

wherein less than an entirety of the memory device of the first one of the plurality of electric controllers includes the first distinct portion of drive record data.

2. The event data recorder for a vehicle according to claim 1, wherein the drive record data are converted into mathematical data when stored in the electrical controllers.

3. The event data recorder for a vehicle according to claim 1, wherein the plurality of electric controllers are disposed in different positions in the vehicle.

4. The event data recorder for a vehicle according to claim 1, wherein the memory device of the plurality of electric controllers is a non-volatile memory.

11. The event data recorder for a vehicle according to claim 1, wherein the data assignment device assigns a second distinct portion of the drive record data, which is less than all of the drive record data, and which is different than the first distinct portion, to a second one of the plurality of electric controllers different than the first one of the plurality of electric controllers to store the second distinct portion of the drive record data.

14. The event data recorder for a vehicle according to claim 1, wherein the drive record data is related to a single event.

17. The event data recorder for a vehicle according to claim 1, wherein event data recorder records the drive record data of a first event and records drive record data of a second event different than the first event.

5. An event data recording and loading system for a vehicle, comprising:

a plurality of electric controllers each having a separate memory device, the plurality of electric controllers each playing a respective role in the vehicle;

a data assignment device connected to each of said plurality of electric controllers, and

a data loading device enabled to communicate with the data assignment device, wherein;

the data assignment device assigns a first distinct portion of drive record data which is less than all of the drive record data to be recorded on the memory device of a first one of the plurality of electric controllers to store the first distinct portion of the drive record data,

the data assignment device assigns the rest of the drive record data to the memory devices of the rest of the plurality of electric controllers to store the rest of the drive record data, and

the data loading device collects fractions of the drive record data from the memory devices of the plurality of the electric controllers and combines said fractions to restore the drive record data,

wherein less than an entirety of the memory device of the first one of the plurality of electric controllers includes the first distinct portion of drive record data.

6. The event data recording and loading system for a vehicle according to claim 5, wherein:

the drive record data are converted into mathematical data when stored in the electrical controllers, and

the data loading device converts the mathematical data into available drive record data.

7. The event data recording and loading system for a vehicle according to claim 5, wherein:

the plurality of electric controllers are disposed in different positions in the vehicle, and

the data loading device is a portable device.

8. The event data recording and loading system for a vehicle according to claim 5, wherein:

the memory device of the plurality of electric controllers is a non-volatile memory.

12. The event data recording and loading system for a vehicle according to claim 5, wherein the data assignment device assigns a second distinct portion of the drive record data, which is less than all of the drive record data, and which is different than the first distinct portion, to a second one of the plurality of electric controllers different than the first one of the plurality of electric controllers to store the second distinct portion of the drive record data.

15. The event data recording and loading system for a vehicle according to claim 5, wherein the drive record data is related to a single event.

18. The event data recording and loading system for a vehicle according to claim 5, wherein event data recorder records the drive record data of a first event and records drive record data of a second event different than the first event.

9. An event data recording and loading system for a vehicle, comprising:

a plurality of electric controllers disposed in different positions in the vehicle, the plurality of electric controllers each having a separate non-volatile memory device, the plurality of electric controllers each playing a respective role in the vehicle;

a data assignment device connected to each of said plurality of electric controllers, and

a data loading device enabled to communicate with the data assignment device, wherein;

the data assignment device assigns a first distinct portion of drive record data which is less than all of the drive record data to be recorded on the memory device of a first one of the plurality of electric controllers to store the first distinct portion of the drive record data,

the data assignment device assigns the rest of the drive record data to the memory devices of the rest of the plurality of electric controllers to store the rest of the drive record data, and

the data loading device is a portable device and collects fractions of the drive record data from the memory devices of the plurality of the electric controllers and combines said fractions to restore the drive record data,

wherein less than an entirety of the memory device of the first one of the plurality of electric controllers includes the first distinct portion of drive record data.

10. The event data recording and loading system for a vehicle according to claim 9, wherein:

the drive record data are converted into mathematical data when stored in the electrical controllers, and

the data loading device converts the mathematical data into available drive record data.

13. The event data recording and loading system for a vehicle according to claim 9, wherein the data assignment device assigns a second distinct portion of the drive record data, which is less than all of the drive record data, and which is different than the first distinct portion, to a second one of the plurality of electric controllers different than the first one of the plurality of electric controllers to store the second distinct portion of the drive record data.

16. The event data recording and loading system for a vehicle according to claim 9, wherein the drive record data is related to a single event.

19. The event data recording and loading system for a vehicle according to claim 9, wherein event data recorder records the drive record data of a first event and records drive record data of a second event different than the first event.