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Electronic control device

An electronic control device and start-up control technology, applied in transportation and packaging, pedestrian/occupant safety arrangement, vehicle components, etc., can solve the problems of larger sampling data error, lower collision judgment accuracy, sampling cycle error, etc.

Inactive Publication Date: 2015-06-24
KEIHIN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since an error occurs in the sampling cycle as described above in the prior art, the error in the sampling data becomes large, resulting in a problem that the accuracy of collision judgment is lowered.

Method used

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Embodiment Construction

[0024] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, hereinafter, as the electronic control device of the present invention, Figure 4 The SRS unit used in the SRS airbag system shown will be described as an example. However, in order to match Figure 4 The SRS unit 40 is distinguished, and the SRS unit in this embodiment is denoted by reference numeral 50 .

[0025] figure 1 It is a structural block diagram of the SRS unit 50 of this embodiment. Such as figure 1 As shown, the SRS unit 50 performs activation control of an occupant protection device (not shown) such as an airbag or a seat belt pretensioner based on acceleration data obtained from the attached sensor SS. The SRS unit 50 has a sampling request unit 51, a communication I / F 52, an X-axis main G sensor 53 (main sensor), a Y-axis main G sensor 54 (main sensor), an A / D converter 55, and a ROM (Read Only Memory: only read memory) 56 and CPU (cen...

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PUM

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Abstract

An electronic control device performs starting control of a passenger protection device according to the acceleration data obtained from an auxiliary sensor. The electronic control device is provided with a sampling request part which requests the auxiliary sensor to sample the acceleration data with a certain sampling period.

Description

technical field [0001] The present invention relates to an electronic control device, in particular to an electronic control device for controlling the activation of an occupant protection device when a vehicle collides. Background technique [0002] In general, an SRS (Supplemental Restraint System: Supplementary Restraint System) airbag system is known as a system for protecting occupants in the event of a vehicle collision (see, for example, JP 2005-170370 A). The SRS airbag system detects the occurrence of a vehicle collision and activates occupant protection devices such as airbags and seat belt pretensioners based on acceleration data obtained from satellite sensors installed in various parts of the vehicle. [0003] Figure 4 It shows an example of the configuration of the SRS airbag system. The types of attached sensors include front crash sensors (FCS: reference numerals 10R and 10L in the drawings) installed on the left and right sides of the front of the vehicle ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R21/0132
Inventor 川口泰史
Owner KEIHIN CORP