Automobile seat safety belt system with reversible early warning function

A technology for car seats and seat belts, applied in belt control systems and other directions, can solve the problem of non-reversibility of gunpowder pretensioners, and achieve the effect of enhancing protection and reducing accidents.

Active Publication Date: 2012-12-19
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this powder pretensioner is not reversible and needs to be replaced after one use

Method used

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  • Automobile seat safety belt system with reversible early warning function
  • Automobile seat safety belt system with reversible early warning function
  • Automobile seat safety belt system with reversible early warning function

Examples

Experimental program
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Embodiment Construction

[0018] The principle, specific structure and working process of the present invention will be further described below in conjunction with the accompanying drawings.

[0019] figure 1 It is an overall schematic diagram of the car seat safety belt with reversible early warning function according to the present invention. From the overall schematic diagram, the early warning seat belt system can be divided into two parts, the upper part is a seat belt retractor with passive safety function, mainly including a reel 17 wrapped with a seat belt webbing, a locking device 18 and a return coil spring device 11; The lower part is an early warning device with an active safety function, mainly including a drive motor 2, a centrifugal clutch device and a control module 1, wherein the drive motor 2 and the centrifugal clutch device are respectively fixed on the reel frame 16 and the motor frame 19, and the reel frame 16 Together with the motor frame 19, it is fixed in the B-pillar of the a...

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PUM

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Abstract

The invention discloses an automobile seat safety belt system with reversible early warning function, and belongs to the technical field of automobile active and passive safety. In order to remind a driver under the conditions of poor driving behaviors such as fatigue driving, illegal operation and the like of the driver and reduce or avoid traffic accidents, the invention designs the automobile seat safety belt system integrating the three functions of reversible early warning, electric pre-tightening and force limiting protection by adopting an electromechanical combination method. The reversible early warning safety belt system mainly comprises a safety belt braid, a safety belt scroll, a driving motor, a centrifugal clutch device, a belt transmission device, a force limiting torsion bar and a motor control circuit. When the automobile runs normally, the reversible early warning safety belt system has the same functions as the traditional passive safety belt. When the driver has poor driving behaviors, the reversible early warning safety belt system receives signals provided by an early warning monitoring system and drives the motor to act, and the driver is reminded through the tensioning force of the tensioned safety belt braid acted on the driver.

Description

technical field [0001] The invention relates to an automobile seat safety belt system, in particular to an automobile seat safety belt system with an early warning and monitoring function, and belongs to the technical field of automobile driving safety. Background technique [0002] A number of studies at home and abroad have shown that abnormal driving states such as fatigue driving and distraction, as well as bad driving behaviors such as following the car too closely and illegal operation are the main causes of traffic accidents, accounting for more than 70% of the total number of accidents. By monitoring the status and behavior of the driver and reminding the driver in time, the traffic behavior of the driver can be effectively improved and the occurrence of traffic accidents can be greatly reduced. After the early warning monitoring system sends out a danger signal, the early warning execution system can remind the driver through various schemes. Among them, the remind...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R22/48
Inventor 张帆罗鑫夏勇周青成波姬佩君
Owner TSINGHUA UNIV
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