Data recording apparatus and data recording method

• US 20050190469A1
• Filed: 02/25/2005
• Published: 09/01/2005
• Est. Priority Date: 02/27/2004
• Status: Active Grant

• Current Assignee: Fuji Heavy Industries Limited (Subaru Corp.)
• Original Assignee: Fuji Heavy Industries Limited (Subaru Corp.)
• Inventors: Noguchi, Kiyoshige
• Granted Patent: US 7,231,285 B2
• Time in Patent Office: Days
• US Class Current: 360/1
• 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 data recording apparatus acquires vehicle data on a time-series basis. Then, a series of vehicle data, which satisfy predetermined acquiring conditions and are collected in a predetermined period from time-series vehicle data acquired by a data acquiring unit are recorded in a data recording unit, while being correlated with time information. The data acquiring unit continues to acquire the vehicle data while a data controlling unit records a series of the vehicle data in the data recording unit.

Claims

1. A data recording apparatus for storing vehicle data with control parameters in a control unit of a vehicle and for being accessible by an affiliated system, comprising:

a data acquiring unit for acquiring the vehicle data on a time-series basis; and

a data controlling unit for recording a series of the vehicle data in a predetermined period in a data recording unit while being correlated with time information,

wherein the series of the vehicle data are time-series vehicle data, and

wherein the data acquiring unit continues to acquire the vehicle data while the data controlling unit records a series of the vehicle data in the data recording unit.

2. The data recording apparatus according to claim 1, wherein:

the data controlling unit has a full-recording mode where the series of the vehicle data are recorded in the data recording unit irrespective of the acquiring conditions while being correlated with the time information, and can switch a recording mode to the full-recording mode.

3. The data recording apparatus according to claim 1, further comprising:

a random access memory for recording the time-series vehicle data;

wherein the data controlling unit records the series of the vehicle data.

4. The data recording apparatus according to claim 1, further comprising:

a communication unit for informing of completion of recording when the recording into the data recording unit is completed.

5. The data recording apparatus according to claim 1, wherein:

the data acquiring unit further acquires values learned by the control unit and changed in response to a driving condition of the vehicle as the vehicle data.

6. The data recording apparatus according to claim 1, wherein:

the data acquiring unit further acquires peripheral information of the vehicle.

7. A data recording method of recording vehicle data with control parameters in a control unit of a vehicle into a data recording unit, comprising the steps of:

acquiring the vehicle data on a time-series basis;

recording a series of the vehicle data which satisfy predetermined acquiring conditions and are collected in a predetermined period from acquired time-series vehicle data in the data recording unit while being correlated with time information; and

continuing to acquire the vehicle data while a data controlling unit records a series of the vehicle data in the data recording unit.

8. The data recording method according to claim 7, wherein:

the recording step has a full-recording mode where a series of the acquired vehicle data are recorded in the data recording unit irrespective of the acquiring conditions while being correlated with the time information, and can switch a recording mode to the full-recording mode.

9. The data recording method according to claim 7, further comprising:

storing the acquired time-series vehicle data in a random access memory,

wherein the storing step records a series of the vehicle data recorded in the random access memory in the data recording unit.

10. The data recording method according to claim 7, further comprising:

informing of a completion of said recording when the recording into the data recording unit is completed.