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Active pre-tightening safety belt control system

A control system and seat belt technology, applied in the belt control system, car seat belt, vehicle safety arrangements, etc., can solve problems such as not being able to predict danger well, not being able to meet active safety, and increasing later-stage costs

Pending Publication Date: 2016-11-09
TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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AI Technical Summary

Problems solved by technology

[0003] Both the traditional three-point seat belt and the existing pre-tensioned seat belt belong to the category of passive safety, and because the existing pre-tensioned seat belt can only achieve the purpose of pre-tensioning after a collision occurs through the built-in explosive gas generating agent Moreover, the gas generating agent in the device needs to be replaced in time after a collision, which cannot meet the requirements of active safety. This not only fails to predict and reduce risks well, but also greatly increases the later cost

Method used

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  • Active pre-tightening safety belt control system
  • Active pre-tightening safety belt control system
  • Active pre-tightening safety belt control system

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] Such as figure 1 Shown: an active pretension seat belt control system, including a power supply circuit, a single-chip microcomputer, a motor drive circuit, an electromagnetic clutch drive circuit, a sensor interface circuit, a communication serial port circuit, a BDM download circuit and an interface circuit; The motor driving circuit, the electromagnetic clutch driving circuit and the sensor interface circuit are connected to provide a suitable and stable power supply for the entire active pretensioning seat belt controller system. The single-chip microcomputer is responsible for signal processing and calculation and output control signal, which is the core of the whole controller. The motor drive circuit is used to drive the motor to meet the actual safety belt webbing retraction requirements, and the current feedback circuit is used to col...

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PUM

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Abstract

The invention provides an active pre-tightening safety belt control system. A control board comprises a power circuit, a ship-chip microcomputer, a motor drive circuit, an electromagnetic clutch drive circuit, a sensor interface circuit, a communication serial port circuit, a BDM downloading circuit and an interface circuit. Signals of all early warning sensors are acquired, the safety level is determined through the logic judgment of a ship-chip microcomputer controller, and control commands under different safety levels are output according to different danger degrees, so that a motor is driven to control the reeling frequency of a safety belt reeling device and the tension value of a safety belt woven belt; and through different combination modes of the reeling frequency of the safety belt reeling device and the tension value of the safety belt woven belt, the corresponding safety level is determined, and it is guaranteed that reminding and protecting functions on a driver are achieved.

Description

technical field [0001] The invention relates to an active pretensioning safety belt control system. Background technique [0002] Today, seat belts have been used as an important part of the occupant restraint system, and are the most important and effective safety devices that have been proven. The safety performance of automobiles consists of the active safety of automobiles that predicts and avoids dangers and prevents accidents before they happen, and the passive safety that prevents drivers and passengers from being injured when accidents occur. Seat belts are mainly used to restrain the driver and passengers on the seat when the car encounters emergency braking in an unexpected situation, thereby protecting the driver and passengers from secondary collisions. According to a number of researches at home and abroad, drivers' fatigue driving and illegal operation are the main causes of traffic accidents, accounting for 75% of the total number of traffic accidents. By de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R22/46B60R22/48B60R21/01B60R16/023B60R16/033
CPCB60R16/023B60R16/033B60R21/01B60R22/46B60R22/48B60R2022/4808B60R2022/1957B60R2021/0104B60R2021/01286
Inventor 关志伟杜峰赵宇闫光辉
Owner TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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