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Sensor for determining the occupancy of vehicle seats

A technology for vehicle seats and sensors, which is applied in vehicle components, vehicle safety arrangements, instruments, etc., and can solve problems such as difficulty in seat occupancy detection.

Inactive Publication Date: 2009-10-14
舒少龙 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a sensor for determining the occupancy state of the vehicle seat, which is used to detect the occupancy state of the passenger seat, and to a certain extent overcome the interference of small objects such as handbags and the different sitting postures of the human body, different weight and It is difficult to detect seat occupancy due to factors such as different hip areas, and meets the needs of vehicle seat occupancy status information when different vehicle components are working

Method used

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  • Sensor for determining the occupancy of vehicle seats
  • Sensor for determining the occupancy of vehicle seats
  • Sensor for determining the occupancy of vehicle seats

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0016] An embodiment of the invention will refer to Figure 1 to Figure 3 Be explained.

[0017] Such as figure 1 As shown, the seat sensor 1 is composed of four pressure sensing unit groups 11 , 12 , 13 , 14 , a connection harness 15 and an electrical connection interface 16 thereof. The four pressure sensing unit groups are connected in parallel. Each pressure sensing unit group consists of three pressure sensing units. Taking the pressure sensing unit group 11 as an example, it is composed of three pressure sensing units 111 , 112 , 113 connected in series. All the pressure sensing units are electrically connected through the connection harness 15 , and finally the output signals of the pressure sensing units are sent to the electronic control unit for occupant detection through the electrical connection interface 16 .

[0018] Any pressure sensing unit is equivalent to a switch device, when the force is sufficient, the switch is closed, and when it is not stressed or t...

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PUM

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Abstract

The invention belongs to the field of transport infrastructure technology and specifically relates to a sensor for determining the occupancy of vehicle seats. The sensor comprises a plurality of pressure sensing units. The force area of a vehicle seat surface is divided into several sub-regions and the pressure sensing units are divided into the pressure sensing unit groups with the number equivalent to that of the sub-regions, and each pressure sensing unit group is exclusively arranged into a sub-region. The parallel connection as the circuit connection is applied to different sensing unit groups and the series connection is applied for the connection in a sensing unit group. When the pressure sensing unit of a sensing unit group is adequately pressed, the output resistance value of the sensor is less than a threshold value; otherwise, the output resistance value of the sensor is higher than the threshold value. By comparing the output resistance value of the sensor with the threshold value, the seat occupancy information can be known.

Description

technical field [0001] The invention belongs to the technical field of traffic facilities, and in particular relates to a pressure sensor for determining the occupancy state of a vehicle seat. Background technique [0002] In the field of vehicle electronics, some efforts have been made to obtain reliable information about the occupancy status of vehicle seats. Several types of vehicle seat occupancy sensors have been developed and used. These seat occupancy sensors are used to determine the occupancy status of the vehicle seats. [0003] The output information of vehicle seat occupancy sensors is often used to assist in determining the working status of vehicle components such as airbags, seat belt buckles, and vehicle air conditioners. Different applications have different performance requirements for vehicle seat occupancy sensors. If it is desired that the output information of the vehicle seat occupancy sensor can be used to assist in controlling these vehicle compon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L15/00B60R21/015
Inventor 舒少龙林峰
Owner 舒少龙
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