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Vehicular data recording apparatus

By introducing a priority management mechanism into vehicle data recording equipment, the problem of incomplete data recording when multiple collisions occur is solved, reliable and efficient recording of vehicle collision data is achieved, and the data integrity required for analysis is ensured.

Active Publication Date: 2008-08-06
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is an inability to reliably and effectively record and maintain data necessary and sufficient for analyzing the cause of collisions, etc.

Method used

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Examples

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Embodiment Construction

[0032] Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

[0033] FIG. 1 is a system configuration diagram showing an embodiment of a vehicle data recording device of the present invention. The vehicle data recording apparatus of the present embodiment is realized by an airbag ECU 100 that performs control of activating a vehicle occupant protection device such as an airbag or the like. However, the configuration and functions of the vehicle data recording device described below may be incorporated in an ECU other than the airbag ECU 100, or may also be realized by cooperation of a plurality of ECUs.

[0034] The airbag ECU 100 operates using a battery 110 installed in the vehicle as a power source. The battery 110 is generally disposed in an engine compartment located at the front of the vehicle.

[0035] Occupant protection devices may include seat airbags for frontal collisions (hereinafter referred ...

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Abstract

A vehicle data recording device, comprising a collision detection device (12) and a record processing device (14), the collision detection device (12) is used to detect a collision of a vehicle, and the record processing device (14) is used to Output data of various on-vehicle sensors (20, 30, 40, 50) are recorded and held in a non-volatile memory (70), wherein, if a collision is detected by the collision detection device (12), the recording processing device executes a process related to the Collision-related data record / hold processing. If the collision detection means continuously detects a plurality of collisions different in collision form within a short period of time, the recording processing means executes data recording / holding processing related to each collision according to a predetermined priority of each collision.

Description

technical field [0001] The present invention relates to a vehicle data recording apparatus comprising a collision detection device for detecting a collision of a vehicle and a recording processing device for recording and maintaining output data of various on-vehicle sensors installed in the vehicle, wherein if the collision detection device When a collision is detected, data recording / holding processing related to the collision is executed by the recording processing means. Background technique [0002] Conventionally, there has been known a vehicle data recording apparatus (for example, Japanese Patent Application Publication No. JP-A-07-277230), which includes a recording device for recording outputs of various on-vehicle sensors installed in a vehicle and A collision detection device for detecting a collision of a vehicle, and records and holds the output of an on-board sensor provided before and after the collision of the vehicle, the vehicle data recording apparatus is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P1/12G07C5/08
CPCG01P1/14G07C5/0891G07C5/085B60R2021/0002B60R21/0132G01P1/127
Owner TOYOTA JIDOSHA KK
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