CN203093804U - Automobile safety seat based on magneto-rheological damper - Google Patents

Automobile safety seat based on magneto-rheological damper Download PDF

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Publication number
CN203093804U
CN203093804U CN 201220685355 CN201220685355U CN203093804U CN 203093804 U CN203093804 U CN 203093804U CN 201220685355 CN201220685355 CN 201220685355 CN 201220685355 U CN201220685355 U CN 201220685355U CN 203093804 U CN203093804 U CN 203093804U
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China
Prior art keywords
damper
seat
pressure sensor
magneto
automobile
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Expired - Fee Related
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CN 201220685355
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Chinese (zh)
Inventor
宋伟志
席加豪
赵艳青
王世玉
孙恩民
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Changan University
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Changan University
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Priority to CN 201220685355 priority Critical patent/CN203093804U/en
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Publication of CN203093804U publication Critical patent/CN203093804U/en
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Expired - Fee Related legal-status Critical Current

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  • Vehicle Body Suspensions (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The utility model discloses an automobile safety seat based on a magneto-rheological damper. The automobile safety seat comprises a seat body and a support column mounted below the seat body. A pressure sensor, the magneto-rheological damper and a spring is mounted in parallel between the support column and an automobile bottom. The pressure sensor is connected with an input end of a single-chip microcomputer through a signal processor. An output end of the single-chip microcomputer is connected with a controllable power supply which is connected with the magneto-rheological damper. The automobile safety seat is high in intelligence level, damping of the damper can be reasonably automatically adjusted according to weight of a driver and automobile vibration intensity during driving, and accordingly damper output force is changed, and riding comfortableness of the seat is improved.

Description

A kind of safety chair seats of car based on MR damper
Technical field
The utility model belongs to the auto parts and components field, is specifically related to a kind of automotive seat.
Background technology
Along with national economy develop rapidly, freeway net all-round construction and living standard greatly improve, automobile be dissolved into gradually people work the life among, become the indispensable vehicle, people propose higher requirement to ride of vehicle and safety.Traditional automotive seat adopt common damper, because of its dumping force constant, so the extent of vibration in the time of can not be according to the body weight of passenger and running car reasonably changes damping, more weak and the less personnel of body weight of feasible vibration arrive in seat and cross " firmly ", and to big with the automobile vibration degree, the passenger body weight is bigger, feels that again seat crosses " soft ", greatly reduces the travelling comfort of seat thus.And the human discomfort that the vibration of automobile brings to the people is general, and especially on present lorry and passenger vehicle, its drawback is particularly outstanding.
Summary of the invention
At the deficiency that prior art exists, the purpose of this utility model is, a kind of safety chair seats of car that can improve seat comfort based on MR damper is provided.
In order to realize above-mentioned task, the utility model adopts following technical scheme to be achieved:
A kind of safety chair seats of car based on MR damper, comprise seat and pillar stiffener, pillar stiffener is installed in under-seat, between pillar stiffener and the automobile bottom surface pressure sensor, MR damper and spring are installed side by side, pressure sensor links to each other with the input end of micro controller system by signal processor, the mouth of micro controller system links to each other with controllable electric power, and controllable electric power links to each other with MR damper.
The utility model also has following technical characterstic:
Described pressure sensor adopts SM5651-003D-3S type pressure sensor.
Described micro controller system adopts the STC189C51 micro controller system.
Intelligent degree height of the present utility model, the damping of the intensity adjusting damper automatically and reasonably that vibrates in the time of can be according to the body weight size of passenger, running car changes the size of damper power output with this, improves the travelling comfort of seat greatly.
Description of drawings
Fig. 1 is an installation site of the present utility model scheme drawing.
Fig. 2 is a control part annexation scheme drawing of the present utility model.
Fig. 3 is the integral structure scheme drawing of MR damper.
The implication of each label is among the figure: 1-seat, 2-pillar stiffener, 3-automobile bottom surface, the 4-pressure sensor, 5-MR damper, 6-spring, the 7-signal processor, 8-micro controller system, 9-controllable electric power, the 51-clutch release slave cylinder, 52-damp channel, 53-magnetic flow liquid, the 54-excitation coil, the 55-magnetic flux, 56-piston, 57-piston rod.
Below in conjunction with drawings and Examples particular content of the present utility model is done explanation in further detail.
The specific embodiment
Below provide specific embodiment of the utility model, need to prove that the utility model is not limited to following specific embodiment, all equivalents of doing on present techniques scheme basis all fall into protection domain of the present utility model.
Defer to technique scheme, as depicted in figs. 1 and 2, a kind of safety chair seats of car based on MR damper, comprise seat 1 and pillar stiffener 2, pillar stiffener 2 is installed in seat 1 below, and pressure sensor 4, MR damper 5 and spring 6 are installed between pillar stiffener 2 and the automobile bottom surface 3 side by side, and pressure sensor 4 links to each other with the input end of micro controller system 8 by signal processor 7, the mouth of micro controller system 8 links to each other with controllable electric power 9, and controllable electric power 9 links to each other with MR damper 5.
Pressure sensor 4 adopts SM5651-003D-3S type pressure sensor, this series sensor is the dual-in-line little differential pressure sensor of band temperature compensating, calibration, and this sensor performance is superior, can adopt the excitation of constant current drive or constant voltage, strong interference immunity is fit to be applied to vibrate fierce seat.
Micro controller system 8 adopts the STC189C51 micro controller system; Signal processor 7 adopts ZMD31050 sensor signal process chip.
Controllable electric power 9 adopts the non-maintaining type storage battery.The non-maintaining type storage battery is to make with lead-calcium alloy, because storage battery has adopted lead-calcium alloy to make the grid frame, so the water decomposition amount that produces during charging is few, water evaporation quantity is also low, adds that shell adopts hermetically-sealed construction, and the sulfuric acid gas that discharges also seldom, so it is compared with traditional storage battery, do not have and need add any liquid, butted line pile crown, advantages such as electric weight storage time length.
MR damper 5 is based on a kind of novel damper of the controllable characteristics of magnetic flow liquid, its principle of work is under the effect of externally-applied magnetic field, the magnetic polarization particle of random scattering moves along magnetic direction in the magnetic flow liquid 53, the magnetization motion links particle from beginning to end, form chain or net structure, thereby the flow characteristic of magnetic flow liquid 53 is changed, and then the difference of pressure at damp channel 52 two ends of MR damper 5 is changed, reach the purpose that changes dumping force.As shown in Figure 3, MR damper 5 internal magnetic fields are excited by the excitation coil 54 that is wound in piston 56 middle parts, excitation coil twines part and is magnetic core, magnetic flux 55 is the most intensive herein, magnetic flux 55 flows out magnetic cores after to flow to damp channel 52(by piston 56 ends be circular clearance between piston 56 and the clutch release slave cylinder 51), enter clutch release slave cylinder 51 after passing damp channel 52, and finally get back to magnetic core after passing the damp channel 52 of opposite side once more, form the loop.As shown in Figure 1, the piston rod 57 of MR damper 5 is connected with seat 1, clutch release slave cylinder 51 is connected with automobile bottom surface 3, when automobile in the process of moving, because vibration makes the piston 56 relative clutch release slave cylinders 51 of MR damper 5 move, flow through damp channel 52 by magnetic flow liquid 53, realize absorbing energy.When the magnetic field that excitation coil 54 loads changed, the viscosity of magnetic flow liquid 53 changed, and made dumping force change.
Working process of the present utility model is as follows:
In the vehicle traveling process, owing to road excitation is vibrated, relative vibration takes place with clutch release slave cylinder 51 in piston 56, because the vibration intensity difference, its pressure is also different.Pressure sensor 4 on each safety seat, the pressure variation that seat 1 is born passes to signal processor 7 in real time, is to pass to micro controller system 8 after the digital signal by signal processor 7 with analog signal conversion, excessive or kick the beam and running car time vibration when relatively more violent when the passenger body weight, the pressure signal that pressure sensor 4 is detected changes strong, signal processor 7 receives this strong signal and is converted to digital signal and passes to micro controller system 8, after making judgement, 8 pairs of pressure signals variations of micro controller system send control signal, the increase of the electric current of control controllable electric power 9 outputs, control the electric current that is carried in the MR damper 5 on the excitation coil 54 with this and increase, the power output of MR damper 5 is increased; When seat 1 vibration tends towards stability, the pressure signal that pressure sensor 4 detects changes and weakens, micro controller system 8 is controlled controllable electric power 9 again, make the electric current of controllable electric power 9 reduce, finally reduce the power output of MR damper, control makes the vibration of seat 1 reach the most reasonable effectiveness in vibration suppression so repeatedly, improves ride of vehicle.

Claims (3)

1. safety chair seats of car based on MR damper, comprise seat (1) and pillar stiffener (2), pillar stiffener (2) is installed in seat (1) below, it is characterized in that, pressure sensor (4), MR damper (5) and spring (6) are installed between pillar stiffener (2) and automobile bottom surface (3) side by side, pressure sensor (4) links to each other with the input end of micro controller system (8) by signal processor (7), the mouth of micro controller system (8) links to each other with controllable electric power (9), and controllable electric power (9) links to each other with MR damper (5).
2. the safety chair seats of car based on MR damper as claimed in claim 1 is characterized in that, described pressure sensor (4) adopts SM5651-003D-3S type pressure sensor.
3. the safety chair seats of car based on MR damper as claimed in claim 1 is characterized in that, described micro controller system (8) adopts the STC189C51 micro controller system.
CN 201220685355 2012-12-12 2012-12-12 Automobile safety seat based on magneto-rheological damper Expired - Fee Related CN203093804U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220685355 CN203093804U (en) 2012-12-12 2012-12-12 Automobile safety seat based on magneto-rheological damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220685355 CN203093804U (en) 2012-12-12 2012-12-12 Automobile safety seat based on magneto-rheological damper

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Publication Number Publication Date
CN203093804U true CN203093804U (en) 2013-07-31

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104228619A (en) * 2014-08-25 2014-12-24 合肥工业大学 Magnetorheological elastomer-based multi-degree-of-freedom vibration reducing system for heavy vehicle seat
CN106627279A (en) * 2016-11-21 2017-05-10 清华大学 Vehicle and collision energy absorption control device and method thereof
CN107458277A (en) * 2017-09-19 2017-12-12 安路普(北京)汽车技术有限公司 Automatic damping governor motion and gas suspension seat
CN108147256A (en) * 2017-12-25 2018-06-12 凌志电梯有限公司 A kind of elevator safety thing to sit on
CN108361311A (en) * 2018-01-23 2018-08-03 长安大学 A kind of mode MR elastomer damper
CN108583382A (en) * 2018-03-09 2018-09-28 合肥工业大学 A kind of semi-active suspension formula Lightningproof damping chair
CN109703762A (en) * 2018-12-24 2019-05-03 中国海洋大学 Helicopter crash proof seat based on MR damper
CN109764078A (en) * 2019-03-25 2019-05-17 浙江春风动力股份有限公司 The driving hanger and shock-dampening method of a kind of vehicle and its all-terrain vehicle
CN110667444A (en) * 2019-10-24 2020-01-10 五邑大学 Vibration damper, seat and vehicle
RU215981U1 (en) * 2022-11-26 2023-01-11 Федеральное государственное бюджетное образовательное учреждение высшего образования Воронежский государственный аграрный университет имени императора Петра I (ФГБОУ ВО Воронежский ГАУ ) Vehicle seat suspension with active damping

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104228619B (en) * 2014-08-25 2016-08-24 合肥工业大学 Heavy vehicle seat multi-degree of freedom vibration reduction system based on magnetic rheology elastic body
CN104228619A (en) * 2014-08-25 2014-12-24 合肥工业大学 Magnetorheological elastomer-based multi-degree-of-freedom vibration reducing system for heavy vehicle seat
CN106627279A (en) * 2016-11-21 2017-05-10 清华大学 Vehicle and collision energy absorption control device and method thereof
CN107458277B (en) * 2017-09-19 2023-08-18 安路普(北京)汽车技术有限公司 Automatic damping adjustment mechanism and air suspension seat
CN107458277A (en) * 2017-09-19 2017-12-12 安路普(北京)汽车技术有限公司 Automatic damping governor motion and gas suspension seat
CN108147256A (en) * 2017-12-25 2018-06-12 凌志电梯有限公司 A kind of elevator safety thing to sit on
CN108361311A (en) * 2018-01-23 2018-08-03 长安大学 A kind of mode MR elastomer damper
CN108583382A (en) * 2018-03-09 2018-09-28 合肥工业大学 A kind of semi-active suspension formula Lightningproof damping chair
CN108583382B (en) * 2018-03-09 2020-12-01 合肥工业大学 Semi-active suspension type lightning protection shock attenuation seat
CN109703762A (en) * 2018-12-24 2019-05-03 中国海洋大学 Helicopter crash proof seat based on MR damper
CN109764078A (en) * 2019-03-25 2019-05-17 浙江春风动力股份有限公司 The driving hanger and shock-dampening method of a kind of vehicle and its all-terrain vehicle
CN110667444A (en) * 2019-10-24 2020-01-10 五邑大学 Vibration damper, seat and vehicle
RU215981U1 (en) * 2022-11-26 2023-01-11 Федеральное государственное бюджетное образовательное учреждение высшего образования Воронежский государственный аграрный университет имени императора Петра I (ФГБОУ ВО Воронежский ГАУ ) Vehicle seat suspension with active damping

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Granted publication date: 20130731

Termination date: 20131212