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Seat occupancy detection device

A technology for detecting devices and seats, which is applied in special positions of vehicles, vehicle seats, transportation and packaging, etc., can solve the problem that the number of sensor units, the distance between sensor units, and the arrangement of sensor units are not clearly defined, and the seat occupancy cannot be detected correctly. Hardening etc.

Active Publication Date: 2014-05-07
AISIN SEIKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The material of the seat cushion may harden when the temperature inside the vehicle is low, so the area where this pressure is applied may be reduced
According to the seat occupancy sensor disclosed in Patent Document 1, an example using two sensor units (contact portions) is described, however, the required number of sensor units, the spacing between sensor units, or the arrangement of sensor units is not clearly defined. limited
Therefore, seat occupancy may not be detected correctly based on the passenger's posture or the thermal environment inside the vehicle

Method used

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  • Seat occupancy detection device
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  • Seat occupancy detection device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0034] Next, a first embodiment of the seat occupancy detection device 2 according to the present disclosure when used in a seat of a vehicle will be described with reference to the illustrations of the drawings. figure 1 is a plan view showing a seating surface of a seat cushion 1 adapted to be provided at a vehicle as a seat for one person. figure 1 The upper, lower, right and left refer to the front, rear, right and left of the seat cushion 1 respectively.

[0035] Such as figure 1 As shown, the seating load area is indicated on the seating surface of the seat cushion 1 . The seating load area refers to an area where a predetermined seating pressure (hereinafter referred to as "seating pressure") is generated when a passenger (for example, a 6-year-old passenger) sits on the seat cushion 1 . In the rear center portion of the seating surface, the outline of the standard seating load area SA is indicated in solid lines and shows a butterfly-like profile. The standard seati...

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PUM

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Abstract

A seat occupancy detection device (2, 52) includes a membrane switch (4, 54.) formed in a bar shape which includes plural contact portions (6) arranged in a straight line and outputs a seat occupancy detection signal when two contact portions (6) from among the plural contact portions (6) are turned on at the same time by a load of an occupant seated on a seat cushion (1), the two contact portions (6) being arranged at at least every other contact portion (6). The membrane switch (4, 54) is provided at the seat cushion (1) so that at least the two contact portions (6) are positioned in a seating load area that receives the load of the occupant when the seating load area is most deviated in a longitudinal or a lateral direction relative to a standard position.

Description

technical field [0001] The present disclosure relates to an apparatus adapted to be provided on a seat of a vehicle and to detect an occupancy state of a passenger seated on the seat. Background technique [0002] In order to improve the performance of safety equipment provided at vehicles including seat belts or airbags, it is possible to detect the occupancy state of passengers sitting on seats of the vehicle to control the safety equipment. However, not only passengers are seated, but also luggage may be placed on the seat. Therefore, it is extremely important to distinguish passengers from luggage and the like and to correctly judge the occupant's seated state in order to correctly operate the safety equipment. [0003] A thin and flexible membrane switch may be used to detect the occupant's seated state. in JP [0004] A known occupancy sensor using a thin and flexible membrane switch is disclosed in 2008-157914A (Patent Document 1). The disclosed seating sensor incl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60N2/00B60R21/015B60R22/48H01H13/702B60N2/90
CPCB60N2/002B60R21/015H01H13/702B60R2021/01516H01H35/24B60R21/01516B60R21/01524H01H3/141B60N2/003B60N2/0026B60N2210/40
Inventor 梁井庆一大竹亘宅间摄近藤弘巳
Owner AISIN SEIKI KK