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Collision detecting device for vehicle and occupant protection system having the same

A technology for collision detection and occupant protection, applied in the fields of collision detection devices and occupant protection systems, can solve problems such as difficulty in reducing manufacturing costs

Inactive Publication Date: 2012-12-05
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to reduce the manufacturing cost

Method used

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  • Collision detecting device for vehicle and occupant protection system having the same
  • Collision detecting device for vehicle and occupant protection system having the same
  • Collision detecting device for vehicle and occupant protection system having the same

Examples

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Embodiment Construction

[0016] The following will refer to Figure 1 to Figure 4 Exemplary embodiments of the present disclosure are described.

[0017] Such as figure 1 with figure 2 As shown in , the collision detection device 1 according to the exemplary embodiment includes a first sensor 2 , a second sensor 3 and a determination unit 4 .

[0018] The first sensor 2 is an acceleration sensor, and is provided in a rear area of ​​the compartment defined from the rear end of the first seat row toward the rear of the vehicle. For example, the first sensor 2 is arranged under the floor of the second seat row. The first sensor 2 detects the movement of the vehicle in relation to a side collision, for example a collision to the rear area of ​​the side of the vehicle. For example, the first sensor 2 detects acceleration, such as a change in acceleration, during a side impact.

[0019] The compartment means a space where an occupant can stay, and is defined inside the vehicle body, such as the inside...

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PUM

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Abstract

A collision detecting device includes a first sensor (2), a second sensor (3, 9), and a determination unit (4). The first sensor is disposed in a rear region of a passenger compartment of a vehicle defined from a first seat row towards a rear of the vehicle. The second sensor is disposed one of in a front region of the passenger compartment defined from the first seat row towards a front of the vehicle and at a side of the first seat row. The determination unit (4) stores a safing threshold (THs) and a main threshold (THm) greater than the safing threshold (THs), and determines that a side collision has occurred only when an output value (V2) of the second sensor (3, 9) is greater than the safing threshold (THs) and an output value (V1) of the first sensor (2) is greater than the main threshold (THm). The invention also relates to an occupant protection system having the above collision detecting device.

Description

technical field [0001] The invention relates to a collision detection device for a vehicle and an occupant protection system with the device. Background technique [0002] Occupant protection systems have been developed that detect a collision to the side of a vehicle and activate occupant protection devices such as air bags. For example, JP2008-74127A corresponding to US2008 / 0067794A1 describes an activation controller for activating an occupant protection device. [0003] Regarding detection of a vehicle side collision (ie, a side collision), for example, a front area and a rear area of ​​a vehicle side are detected by a separate sensing system using a plurality of sensors. [0004] For example, a side impact to the front area is using an acceleration sensor provided at the side of the first seat row as a main sensor and an acceleration sensor provided at the front area of ​​the cabin (for example, the inside of the instrument panel) as a safety sensor detected. In addi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/0136
CPCB60R21/0132B60R2021/0006B60R2021/01322
Inventor 樋口浩司
Owner DENSO CORP
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