Seat condition detection device, and illumination direction adjustment device for vehicle headlamp

A technology of state detection device and irradiation direction, which is applied to the special position of the vehicle, measuring device, headlights and other directions, which can solve the problems of reduced reliability

Inactive Publication Date: 2007-07-25
AISIN SEIKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the seat occupancy detecting device of the above-mentioned document, if any one of the pressure-sensitive switches is short-circuited due to failure or the like and becomes normally open, it will be judged that there is a passenger sitting on the seat, and the reliability of the judgment will be reduced.

Method used

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  • Seat condition detection device, and illumination direction adjustment device for vehicle headlamp
  • Seat condition detection device, and illumination direction adjustment device for vehicle headlamp
  • Seat condition detection device, and illumination direction adjustment device for vehicle headlamp

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Embodiment Construction

[0017] Hereinafter, a first embodiment embodying the present invention will be described with reference to the drawings.

[0018] 7 is a perspective view showing a seat of an automobile to which the present invention is applied. As shown in the figure, the seat is, for example, a passenger's seat, and the seat 1 of the passenger's seat includes a cushion spring 4 , a cushion 3 disposed on the upper surface of the cushion spring 4 , and a seat cover 2 covering the cushion 3 . The sensor unit 10 a of the seat occupancy detection device 10 is accommodated on the rear side of the central portion in the width direction of the seat portion 1 so as to be sandwiched between the seat cover 2 and the cushion pad 3 . The sensor unit 10 a is arranged to extend along the seating surface of the seat portion 1 . In addition, the sensor unit 10a may be accommodated in the inside of the cushion pad 3. As shown in FIG.

[0019] FIG. 1 is a circuit diagram showing the electrical configuration ...

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Abstract

A seat condition detection device has a sensor unit including pressure-sensitive switch units that are connected in parallel to each other. Each pressure-sensitive switch unit is switched to an on state or an off state depending on pressure. The pressure-sensitive switch units are scatteredly distributed in a seat. The seat condition detection device determines a load applied on the seat based on an on / off state of the pressure-sensitive switch units. Each pressure-sensitive switch unit includes pressure-sensitive switches that are connected in series to each other. Accordingly, reliability in determination of a load acting on the seat exceeding a predetermined value is enhanced.

Description

technical field [0001] The present invention relates to a seat state detection device and an illumination direction adjustment device of a vehicle lighting lamp. Background technique [0002] Conventionally, as a seating detection device for determining whether or not a passenger is seated on a seat of a vehicle such as an automobile, for example, the device described in Patent Document 1 is known. The seating detection device includes a sensor unit including a plurality of pressure-sensitive switches connected in parallel with each other, and a determination circuit (4). Each pressure-sensitive switch includes a pair of electrodes (33, 34) provided between a pair of sheets (31, 32). Each pressure-sensitive switch is turned on or off according to the load applied to the seat. If at least one of the plurality of pressure-sensitive switches is in an on state, the determination circuit determines that there is a passenger seated on the seat. [0003] In the seating detection...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60N2/44B60Q1/115B60R22/48G01G19/52H01H13/712B60N2/90
CPCB60R21/01532G01G19/4142B60N2/002B60R21/015B60R21/01516H01H3/141H01H2213/01B60Q1/10B60Q2300/22
Inventor 大竹亘桑原武士
Owner AISIN SEIKI KK
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