CN106032136B - Coiler, Webbing take-up device and safety belt coiling controlling method - Google Patents
Coiler, Webbing take-up device and safety belt coiling controlling method Download PDFInfo
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- CN106032136B CN106032136B CN201510108726.1A CN201510108726A CN106032136B CN 106032136 B CN106032136 B CN 106032136B CN 201510108726 A CN201510108726 A CN 201510108726A CN 106032136 B CN106032136 B CN 106032136B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
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- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
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Abstract
The present invention provides a kind of coiler, Webbing take-up device and safety belt coiling controlling methods, the coiler includes: wind spring, it is fixed on the side mounting plate of the frame of Webbing take-up device and is connected to one end of the wireline reel of Webbing take-up device, for turning round wireline reel and then recycling ribbon；Motor is fixed on frame and is connected by one end of a transmission device and wireline reel, for turning round wireline reel and then recycling ribbon；Damping unit provides the damping force of obstruction ribbon backrush for reaching preset value in ribbon residue backrush amount.Coiler according to the present invention, before ribbon residue backrush amount reaches preset value, pass through the collective effect of motor and wind spring, it can make the speed stable uniform raising and lowering of ribbon backrush, when ribbon residue backrush amount reaches preset value, damping unit starts to intervene, the damping force for hindering ribbon backrush is provided, to reduce the backrush speed of ribbon, until the backrush speed of ribbon is zero, ribbon runs smoothly in whole process.
Description
Technical field
The invention belongs to seat belt device for vehicle technical fields, more particularly to a kind of coiler, safe tape wrapping
Device and safety belt coiling controlling method.
Background technique
Its coiler of existing Webbing take-up device is distinguished from retracting method, can be divided into wind spring winding (first kind)
It is these two types of with wind spring plus motor winding (the second class).
As shown in figure 9, first kind coiler is due to being used only wind spring backrush ribbon, so that wind spring winding ribbon power is very big,
Recycling ribbon process ribbon is caused to be accelerated with biggish acceleration always, referring to Fig. 9, the backrush speed of first kind coiler
The variation tendency of (being a kind of backrush speed V1 in figure) is to accelerate to highest point and then be reduced to 0 in a very short period of time, entirely
Process is completed within the shorter T2 time, and lock tongue is collided at the end of backrush with very big speed and backplate or other components,
Make a kind of backrush speed V by colliding decelerating effect1It is reduced to 0, in this way, since the collision between component generates very big noise
With scratch etc., and since wind spring power is very big, first kind coiler even will appear lock tongue in backrush ribbon under some cases
Winged phenomenon is thrown with ribbon, user experience is very poor.
As shown in figure 9, a kind of backrush speed V after optimization11, the upper of backrush speed is reduced by the design optimization of wind spring power
Acceleration is risen, in this way, entire time rewind is completed within the longer T5 time, still, a kind of backrush speed V after optimization11's
Variation tendency, which remains as, to be accelerated to highest point and then is reduced to 0 in a very short period of time, it is seen then that a kind of coiler after optimization,
Still it can not solve the above problems.
Ideal coiler backrush speed (i.e. theoretical comfort backrush speed Vc in Fig. 9) should be that backrush speed is first steady
Fixed rising, then stable decline, it is seen then that one kind retracting speed V1 and theory comfort backrush speed Vc greatly differs from each other, thus,
The ribbon reeling up process of first kind coiler is difficult to meet the comfort level requirement of occupant.
It then passes through improvement and the second class coiler occurs, it, in this way can be with using the double component backrush ribbons of motor and wind spring
Certain control is made to ribbon backrush speed by motor, as shown in Figure 10, such control contains four sections, i.e., 0 to
The wind spring independent role section of T1, the motor of T1 to T2 intervene backrush section, and the motor reduction of T2 to T4 adjusts section, T4 to T5
Collision decelerating effect section, however, it can be seen from fig. 10 that limited by motor performance and cost, the reduction of speed of motor is made
With limited, it is seen then that this mode be also only it is slightly modified to the former, it can be seen from fig. 10 that the backrush of the second class coiler
Speed (is two class backrush speed V in figure2) deviate farther out with theory comfort backrush speed Vc, show existing second class retracting
Although the ribbon reeling up process comfort level effect of device slightly improves, still far from the comfort requirement for meeting occupant.
This is because, the coiler (the second class coiler) that existing wind spring adds motor to wind, in order to guarantee that coiler exists
Comfort under all operating conditions has carried out certain restriction to wind spring power, accordingly even when motor is intervened when backrush ribbon, but its is right
The speed reduction influence of ribbon backrush is limited, simultaneously as being by the associated edge of one-way clutch mechanism between motor and belt reel
Therefore the effect for the winding mechanism backrush speed that causes to slow down by motor low speed becomes unstable, especially decelerating to it is certain
When degree (time rewind reaches this point of T3), one-way clutch may realize unlock, so that slowing down cannot continue to carry out,
Finally backrush speed can be brought up again (see the section T3 to T4 in Figure 10).
Thus, the second class coiler, since the decelerating effect of motor can alleviate first kind coiler to a certain extent
The unfavorable condition generated is wound, still, ribbon backrush speed is not stable enough, and backrush speed occurs not during decelerating through motor
The case where drop instead rises, ribbon backrush whole process are difficult to meet the comfort level requirement of occupant.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to its coiler of existing coiler during backrush ribbon
Ribbon backrush speed is not stable enough, and ribbon reeling up process is difficult to meet the defect that the comfort level of occupant requires, and provides a kind of retracting
Device.
It is as follows that the present invention solves technical solution used by above-mentioned technical problem:
A kind of coiler is provided, comprising:
Wind spring is fixed on the side mounting plate of the frame of Webbing take-up device and is connected to Webbing take-up device
One end of wireline reel, for turning round the wireline reel and then backrush ribbon；
Motor is fixed on the frame and is connect by a transmission device with one end of the wireline reel, for turning round
The wireline reel and then backrush ribbon；
Damping unit, for providing the damping force for hindering ribbon backrush when ribbon residue backrush amount reaches preset value.
Further, the damping unit hinders the damping force of ribbon backrush to increase with the reduction of ribbon residue backrush amount
Greatly.
Further, the damping unit includes the damping body being arranged in the frame, is arranged on the damping body
Rotating connector and spring, the damping unit is rotatably connected in the frame by the rotating connector, the resistance
Buddhist nun's body includes towards ribbon first jiao of end outstanding and second jiao of end, and one end of first jiao of end towards ribbon is formed with damping
Face, one end of second jiao of end towards ribbon are formed with positioning surface, the one end of second jiao of end far from ribbon and described the
One jiao of end is connected far from one end of ribbon, and one end of the spring is supported on first jiao of end, and the other end is supported on described
On frame, the damping area is when ribbon residue backrush amount reaches preset value with ribbon friction to provide the resistance for hindering ribbon backrush
Buddhist nun's power, the positioning surface is when ribbon residue backrush amount is close to zero with ribbon friction so that ribbon stops backrush.
Further, the one end at first jiao of end, which protrudes outward, is formed with locating rod, and the outside of the locating rod is formed
There is guide post, the spring is contained in the sliding slot opened up on the other side mounting plate of the frame, and the spring pocket is described
In guide post, one end of the spring is supported in the locating rod, the other end be supported on the sliding slot along its length
On the inner wall of one end, and then in original state to the locating rod is pushed to the other end inner wall phase along its length with the sliding slot
It abuts；Second jiao of end includes first positioning column and the second positioning column at interval, and the positioning surface includes being respectively formed at institute
State the first positioning surface and the second positioning surface of the first positioning column and the second positioning column outer surface；The rotating connector includes setting
The second shaft setting the first rotating shaft on the outside of first positioning column and being arranged on the outside of second positioning column, described first
Shaft and the coaxial arrangement of the second shaft, the first rotating shaft are rotatably connected on the side mounting plate of the frame, and described second
Shaft is rotatably connected on the other side mounting plate of the frame.
Further, the damping unit is a belt wheel deceleration mechanism, and belt wheel deceleration mechanism includes and the winding
The main wheel of axis unitary rotation, the belt and jockey pulley being wound around on the main wheel, one end of the belt is fixed on the frame
On the mounting plate of side, the other end is fixed on the jockey pulley, and the jockey pulley is provided centrally with rotary shaft, and the one of the rotary shaft
The side mounting plate that end is slidably arranged in the frame is formed by jockey pulley slot, and the jockey pulley reaches in ribbon residue backrush amount
It contacts and is pushed with ribbon when preset value and moved out along the jockey pulley slot, and then tense the belt, so that described
Belt and main wheel contact generate friction, and the damping force for hindering ribbon backrush is provided with this.
Coiler according to the present invention passes through being total to for motor and wind spring before ribbon residue backrush amount reaches preset value
Same-action can make the speed stable uniform raising and lowering of ribbon backrush, and reach default in ribbon residue backrush amount
When value, damping unit starts to intervene, and the damping force for hindering ribbon backrush is provided, to reduce the backrush speed of ribbon, until ribbon
Backrush speed be zero (i.e. ribbon stopping backrush), thus eliminate or reduce the collision of lock tongue and interior other components and draw
Trace, also, choose intervention of the ribbon residue backrush amount as power source each in adjustment process (wind spring, motor and damping unit)
Condition, the backrush path of ribbon is also thus controllable, has prevented ribbon recycling and has been mixed, tangles foreign matter, entirely
In the process, ribbon runs smoothly, and the occupant that levels off to the full extent feels ribbon reeling up process (the i.e. backrush speed song of the most comfortable
The closest theoretical comfort backrush rate curve of line).
In addition, the present invention also provides a kind of Webbing take-up devices comprising above-mentioned coiler.
In addition the present invention also provides a kind of safety belt coiling controlling methods, comprising:
The electronic control unit detection belt buckle lockup state of S1, coiler；
S2, coiler electronic control unit when detecting that belt buckle is in the unlocked state, send a signal to motor drive
Device is moved to start motor, motor drives wireline reel backrush ribbon together with wind spring；
S3, when ribbon residue backrush amount reaches preset value, the damping force of an obstruction ribbon backrush is provided.
Further, further comprising the steps of before step S1:
S0, when vehicle deceleration reaches preset deceleration, wake up the electronic control unit of coiler.
Further, step S2 specifically:
The electronic control unit of coiler sends a signal to motor driver when detecting that belt buckle is in the unlocked state
To start motor, pass through the feed-back regulatory mechanism of motor, the revolving speed of motor driver real-time control motor, so that motor and wind spring
Backrush speed backrush ribbon of the wireline reel uniformly to rise is driven together.
Further, in step S1, the electronic control unit of coiler also detects the gear state of ignition switch, in step S2,
When the electronic control unit of coiler detects that ignition switch is in non-start up shelves and belt buckle in the unlocked state, just issue
Signal is to motor driver to start motor.
Further, further comprising the steps of between step S2 and step S3:
S23, in ribbon backrush to preset first backrush amount, decelerating through motor rotation, pass through the feedback regulation machine of motor
System, the revolving speed of motor driver real-time control motor, so that motor drives wireline reel first uniformly to rise again together with wind spring
The backrush speed backrush ribbon uniformly declined.
Further, step S3 specifically:
When ribbon residue backrush amount reaches the first preset value, the damping unit being arranged in coiler starts to intervene, and leads to
The ribbon of overdamp device friction backrush, provides the damping force of an obstruction ribbon backrush, to further decrease ribbon backrush speed,
Until ribbon stops backrush.
Further, in step S3, while damping unit starts intervention, motor stops working.
Further, damping unit hinders the damping force of ribbon backrush to increase with the reduction of ribbon residue backrush amount.
Safety belt coiling controlling method according to the present invention passes through electricity before ribbon residue backrush amount reaches preset value
The collective effect of machine and wind spring can make the speed stable uniform raising and lowering of ribbon backrush, and return in ribbon residue
When volume amount reaches preset value, damping unit starts to intervene, and provides the damping force for hindering ribbon backrush, to reduce the backrush speed of ribbon
Thus degree eliminate or reduces lock tongue and interior other components until the backrush speed of ribbon is zero (i.e. ribbon stopping backrush)
Collision and scratch, also, choose ribbon residue backrush amount as power source (wind spring, motor and damping each in adjustment process
Device) intervention condition, the backrush path of ribbon is also thus controllable, has prevented ribbon recycling and has been mixed, tangles situations such as foreign matter
Generation, in whole process, ribbon runs smoothly, and the occupant that levels off to the full extent feels the ribbon reeling up process of the most comfortable
(i.e. the closest theoretical comfort backrush rate curve of backrush rate curve).
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the Webbing take-up device that one embodiment of the invention provides；
Fig. 2 is another visual angle figure (removing transmission device and wind spring) of Fig. 1；
Fig. 3 is schematic diagram when damping area is just contacted with ribbon；
Schematic diagram when Fig. 4 is damping area and positioning surface while contacting with ribbon；
Fig. 5 is the structural schematic diagram for a form of damping unit of coiler that one embodiment of the invention provides；
Fig. 6 be another embodiment of the present invention provides the another form of damping unit of coiler structural schematic diagram；
Fig. 7 is coiler its backrush speed V curve, ribbon backrush amount L-curve and the ribbon that one embodiment of the invention provides
The schematic diagram of remaining backrush amount L0 curve；
Fig. 8 is its backrush speed V curve of coiler that one embodiment of the invention provides and theoretical comfort backrush speed Vc
Curve, two class backrush speed V2The comparison diagram of curve；
Fig. 9 is the backrush speed V of existing first kind coiler1A kind of backrush speed V after curve and optimization11Curve with
The comparison diagram of theoretical comfort backrush speed Vc curve；
Figure 10 is the backrush speed V of existing second class coiler2Curve and theoretical comfort backrush speed Vc curve
Comparison diagram；
Figure 11 is the flow chart of safety belt coiling controlling method provided by the invention.
Description of symbols:
10, frame；101, mounting plate；102, sliding slot；103, mounting plate；104, jockey pulley slot；20, wireline reel；30, ribbon；
1, wind spring；2, motor；3, transmission device；4, damping unit；41, damping body；411, first jiao of end；412, second jiao of end；4121,
First positioning column；4122, the second positioning column；413, damping area；414, positioning surface；4141, the first positioning surface；4142, second is fixed
Plane；42, spring；43, locating rod；44, guide post；45, first rotating shaft；46, the second shaft；5, damping unit；51, main wheel；
52, belt；53, jockey pulley；54, rotary shaft.
Specific embodiment
In order to which the technical problems, technical solutions and beneficial effects solved by the present invention is more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
As shown in Figures 1 to 6, the coiler that one embodiment of the invention provides, including wind spring 1, motor 2 and damping unit.
In the present embodiment, the wind spring 1 is fixed on the side mounting plate 101 of the frame 10 of Webbing take-up device simultaneously
It is connected to one end of the wireline reel 20 of Webbing take-up device, for turning round the wireline reel and then backrush ribbon 30.
In the present embodiment, the motor 2 is fixed on the frame 10 and by a transmission device 3 and the wireline reel
20 one end connection, for turning round the wireline reel 20 and then backrush ribbon 30.Transmission device 3 be, for example, gear assembly,
Chain gearing or belt drive unit.
In the present embodiment, damping unit 4 hinders ribbon backrush for providing when ribbon residue backrush amount reaches preset value
Damping force.Preferably, the damping unit 4 hinders the damping force of ribbon backrush to increase with the reduction of ribbon residue backrush amount
Greatly, i.e., it is completed closer to backrush, damping unit 4 is bigger to the damping force of ribbon 30.
In the present embodiment, as shown in Figures 2 to 5, the damping unit 4 includes the damping body being arranged in the frame 10
41, rotating connector and spring 42 on the damping body 41 are set, and the damping unit 4 is turned by the rotating connector
Dynamic to be connected in the frame 10, the damping body 41 has towards 30 outstanding first jiaos of ends 411 of ribbon and second jiao of end
412, the outside at first jiao of end 411 is formed with damping area 413, and the outside at second jiao of end 412 is formed with positioning surface
414, one end of the spring 42 is supported on first jiao of end 411, and the other end is supported on the frame 11, the damping
Face 413 is when ribbon residue backrush amount reaches preset value and ribbon friction is to provide the damping force for hindering ribbon backrush, described fixed
Plane 414 is when ribbon residue backrush amount is close to zero with ribbon friction so that ribbon stops backrush.
The preset value of above-mentioned ribbon residue backrush amount, physically, by first jiao of end structure (size, shape and just
Beginning position), the parameters such as the length (thickness) of ribbon determine, by the design of above-mentioned parameter, ribbon backrush amount (backrush can be made
Length or thickness) start damping face contact with first jiao of end when reaching certain value, thus, above-mentioned ribbon residue backrush amount it is pre-
The difference between backrush amount when if value is total backrush amount and the ribbon rigid contact damping face of ribbon.
In addition, the action principle of positioning surface 414 is as follows:
When ribbon backrush amount is close to 0, spring-compressed reaches maximum value, and damping area is maximum to the frictional force of ribbon, passes through
Suitable spring is designed, so that ribbon can stop backrush when positioning surface just contacts ribbon, is equivalent to realize in this way and knit
Positioning with backrush.And traditional coiler, ribbon backrush have certain surplus, i.e., after the completion of each backrush of ribbon, ribbon
Stop position may be have it is different.
Certainly, in other embodiments, second jiao of end 412 and positioning surface 414 can also be not provided with.
In the present embodiment, as shown in Figures 2 to 5, the one end at first jiao of end 411, which protrudes outward, is formed with locating rod
43, the outside of the locating rod 43 is formed with guide post 44, the spring 42 is contained in the other side mounting plate of the frame 10
In the sliding slot 102 opened up on 103,42 sets of the spring in the guide post 44, one end of the spring 42 is supported on described
In locating rod 43, the other end is supported on one end inner wall along its length of the sliding slot 102, and then in original state by institute
It states locating rod 43 to push to abut against with the other end inner wall along its length of the sliding slot 102, realizes 4 initial shape of damping unit
The positioning of state, guide post 44 play guide function, so that spring 42 in the process of running will not be with frame 10 on centerline direction
Contact, avoids the friction and stress between spring 42 and frame 10, avoids generating noise, extends the service life of part.
In the present embodiment, second jiao of end 412 includes first positioning column 4121 and the second positioning column 4122 at interval, institute
Stating positioning surface 414 includes the first positioning for being respectively formed at 4122 outer surface of first positioning column 4121 and the second positioning column
Face 4141 and the second positioning surface 4142；The rotating connector includes first turn that 4121 outside of the first positioning column is arranged in
Axis 45 and the second shaft 46 that 4122 outside of the second positioning column is arranged in, the first rotating shaft 45 and the second shaft 46 are coaxial
Setting, the first rotating shaft 46 are rotatably connected on the side mounting plate 101 of the frame 10, the second shaft rotation connection
On the other side mounting plate 103 of the frame 10.It is provided with cascaded surface in first rotating shaft 45 and the second shaft 46, to realize
Positioning of the damping unit 4 in frame 10.
In the present embodiment, it is hollowed out (discontinuous) between the first positioning surface 4141 and the second positioning surface 4142, first is that can be with
Reduce the weight at second jiao of end 412, so that more stress points are in this end (first jiao of end 411) of damping area 504, enhancing damping effect
Fruit；Second is that in order to enable damping body 41 can generate certain deformation in assembly, in order to the assembly of damping unit 4.
The damping unit 4 of the present embodiment so that Webbing take-up device winding ribbon to a certain extent when will receive resistance
Buddhist nun acts on and slows down, while being more obvious with longer (i.e. ribbon residue backrush amount the is fewer) damping of ribbon of winding, finally
The movement of retracting device is stopped by positioning surface collaboration when ribbon backrush speed is dropped to close to zero and is located on frame；Work as drawing
Out when ribbon, as the effect of the pull-out damping of ribbon gradually weakens until disappearing, the ribbon pull-out experience of user will not influence,
Instead in the pull-out of ribbon, rollback operation, gives user a kind of comfort for pulling out push, backrush sucking, improve user's body
It tests.
The damping unit 4 of this programme can be used as separate functional blocks and be mounted on assembly, can be implemented separately to ribbon
Backrush deceleration and positioning function, the winding of motor, wind spring co- controlling ribbon can also be cooperated, reach the higher comfortable of client
Degree demand.
Coiler according to the above embodiment of the present invention, as shown in fig. 7, ribbon residue backrush amount reach preset value L2 it
Before (in Fig. 7 before time T4), by the collective effect of motor and wind spring, can make ribbon backrush it is speed stable uniformly on
It rises and declines, and when ribbon residue backrush amount reaches preset value L2, motor stops, damping unit starts to intervene, and provides resistance
Hinder the damping force of ribbon backrush, steadily to reduce the backrush speed of ribbon, until the backrush speed of ribbon is that zero (i.e. ribbon stops
Non-return volume), collision and the scratch of lock tongue and interior other components are thus eliminate or reduced, also, choose the backrush of ribbon residue
The intervention condition as power source each in adjustment process (wind spring, motor and damping unit) of measuring, the backrush path of ribbon also by
This is controllable, has prevented ribbon recycling and has been mixed, tangles foreign matter, as shown in figure 8, in whole process, ribbon fortune
Row is steady, and the occupant that levels off to the full extent feels the ribbon reeling up process of the most comfortable, and (i.e. backrush speed V curve in Fig. 8 is most
Close to theory comfort backrush rate curve Vc).
In addition, in the embodiment shown in fig. 6, providing another form of damping unit 5.In this embodiment, institute
Stating damping unit 5 is a belt wheel deceleration mechanism, and belt wheel deceleration mechanism includes the main wheel with 20 unitary rotation of wireline reel
51, the belt 52 and jockey pulley 53 being wound around on the main wheel 51, one end 521 of the belt 52 are fixed on the frame (in Fig. 6
Be not shown) side mounting plate on, the other end 522 is fixed on the jockey pulley 53, and the jockey pulley 53 is provided centrally with rotation
Axis 54, the side mounting plate that one end of the rotary shaft 54 is slidably arranged in the frame is formed by jockey pulley slot 104, described
Jockey pulley 53 is contacted with ribbon 30 when ribbon residue backrush amount reaches preset value and is pushed along the jockey pulley slot 104 to outward transport
It is dynamic, and then the belt 52 is tensed, so that the belt 52 and the contact of main wheel 51 generate friction, is provided with this and ribbon is hindered to return
The damping force of volume.
Certainly, damping unit can also have other forms, as long as can mention when ribbon residue backrush amount reaches preset value
For hindering the damping force of ribbon backrush.
In addition, the present invention also provides a kind of Webbing take-up devices comprising above-mentioned coiler.Certainly, except this it
Outside, Webbing take-up device should also include other conventional components.
In addition the present invention also provides a kind of safety belt coiling controlling methods, comprising:
The gear state and belt buckle lockup state of the electronic control unit detection ignition switch of S1, coiler.
S2, coiler electronic control unit detecting that ignition switch is in non-start up shelves and belt buckle and is in unlock shape
When state, motor driver is sent a signal to start motor, motor drives wireline reel backrush ribbon together with wind spring；It lights a fire herein
The non-start up shelves of switch refer to that off grades, acc grades and IG-on, starting shelves are indicated with ST grades.
S3, when ribbon residue backrush amount reaches preset value, the damping force of an obstruction ribbon backrush is provided.
It is further comprising the steps of before step S1 in the present embodiment:
S0, when vehicle deceleration reaches preset deceleration, wake up the electronic control unit of coiler.
In the present embodiment, step S2 specifically:
The electronic control unit of coiler is detecting that ignition switch is in non-start up shelves and belt buckle is in the unlocked state
When, motor driver is sent a signal to start motor, passes through the feed-back regulatory mechanism of motor, motor driver real-time control electricity
The revolving speed of machine, so that the backrush speed backrush ribbon that motor drives wireline reel uniformly to rise together with wind spring.
It is further comprising the steps of between step S2 and step S3 in the present embodiment:
S23, in ribbon backrush to preset first backrush amount, decelerating through motor rotation, pass through the feedback regulation machine of motor
System, the revolving speed of motor driver real-time control motor, so that the backrush that motor drives wireline reel uniformly to decline together with wind spring
Speed backrush ribbon.
In the present embodiment, step S3 specifically:
When ribbon residue backrush amount reaches the first preset value, the damping unit being arranged in coiler starts to intervene, and leads to
The ribbon of overdamp device friction backrush, provides the damping force of an obstruction ribbon backrush, to further decrease ribbon backrush speed,
Until ribbon stops backrush.
In the present embodiment, in step S3, while damping unit starts intervention, motor stops working.
In the present embodiment, damping unit hinders the damping force of ribbon backrush to increase with the reduction of ribbon residue backrush amount
Greatly.
Certainly, in other embodiments, in step S1, the electronic control unit of coiler can also detect the gear of ignition switch
State in step S2, detects that ignition switch is in non-start up shelves and belt buckle is in solution in the electronic control unit of coiler
When lock status, motor driver is sent a signal to just to start motor.
Referring to Fig. 7 and Figure 11, safety belt coiling controlling method according to the above embodiment of the present invention, vehicle real-time judge is worked as
Whether preceding deceleration a is less than preset deceleration a0, and when vehicle deceleration reaches preset deceleration, (i.e. a is less than a0 not
When establishment), wake up the electronic control unit (the coiler ECU in Figure 11) of coiler, the electronic control unit real-time detection igniting of coiler
The gear state and belt buckle lockup state of switch, when the electronic control unit of coiler non-is opened detecting that ignition switch is in
When dynamic shelves (ST grades non-) and belt buckle in the unlocked state, motor driver is sent a signal to start motor, due to electricity
The starting of machine needs certain time, thus this section of 0 to T1 time point is wind spring independent role section, this section backrush speed
V approaches uniformity declines, and after T1, motor starts to intervene, and the section of T1 to T2 is that motor intervenes backrush section, in this section, leads to
Cross the feed-back regulatory mechanism of motor, the revolving speed of motor driver real-time control motor, so that motor drives winding together with wind spring
Backrush speed backrush ribbon of the axis uniformly to rise in i.e. Figure 11, is stablized backrush acceleration in a1 (i.e. in Figure 11 by control
Backrush acceleration a is set up less than a1, and motor driver just plays adjustment mechanism)；When reaching T2 time point, ribbon residue backrush amount
Reach the first preset value L1, decelerating through motor rotation, by the feed-back regulatory mechanism of motor, motor driver real-time control motor
Revolving speed, so that motor drives wireline reel together with wind spring first uniformly to rise the backrush speed backrush ribbon uniformly declined again (electricity
Ribbon backrush speed is still increased in a bit of time that machine deceleration adjustment effect starts), i.e. in Figure 11, passing through control will
Backrush acceleration is stablized in a2 (i.e. backrush acceleration a is set up less than a2 in Figure 11, and motor driver just plays adjustment mechanism), T2
It is that decelerating through motor adjusts section to the section of T3；In this way, by the collective effect of motor and wind spring, can make 0 to the section T3
Obtain the speed stable uniform raising and lowering of ribbon backrush；When reaching T3 time point, ribbon residue backrush amount reaches preset value L2,
Motor stalls, damping unit start to intervene, and provide the damping force for hindering ribbon backrush, to reduce the backrush speed of ribbon,
Until the backrush speed of ribbon is zero (i.e. ribbon stopping backrush), T3 to the section T4 is damping decelerating effect section, this section is knitted
Band backrush speed uniformly declines；T4 is to collide decelerating effect section to the section T5, as shown in Figure 7, when reaching this section, ribbon
Speed be essentially close to 0, in this way, the collision of lock tongue and interior other components is very slight (not having even), thus eliminate or
Reduce collision and the scratch of lock tongue and interior other components, also, chooses ribbon residue backrush amount as each in adjustment process
The intervention condition of a power source (wind spring, motor and damping unit), the backrush path of ribbon is also thus controllable, has prevented ribbon and has returned
Receipts are mixed, tangle foreign matter, and in whole process, ribbon runs smoothly, the occupant that levels off to the full extent sense
Feel the ribbon reeling up process (i.e. the closest theoretical comfort backrush rate curve Vc of backrush speed V curve in Fig. 8) of the most comfortable.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (4)
1. a kind of coiler characterized by comprising
Wind spring is fixed on the side mounting plate of the frame of Webbing take-up device and is connected to the winding of Webbing take-up device
One end of axis, for turning round the wireline reel and then backrush ribbon；
Motor is fixed on the frame and is connect by a transmission device with one end of the wireline reel, described for turning round
Wireline reel and then backrush ribbon；
Damping unit, for providing the damping force for hindering ribbon backrush when ribbon residue backrush amount reaches preset value；
The damping unit include the damping body being arranged in the frame, the rotating connector being arranged on the damping body and
Spring, the damping unit are rotatably connected in the frame by the rotating connector, and the damping body includes that direction is knitted
With first jiao of end outstanding and second jiao of end, one end of first jiao of end towards ribbon is formed with damping area, and described second jiao
End is formed with positioning surface towards one end of ribbon, and the one end of second jiao of end far from ribbon and first jiao of end are far from ribbon
One end connection, one end of the spring is supported on first jiao of end, and the other end supports the damping on said frame
Face is when ribbon residue backrush amount reaches preset value with ribbon friction to provide the damping force for hindering ribbon backrush, the positioning surface
When ribbon residue backrush amount is close to zero with ribbon friction so that ribbon stops backrush.
2. coiler according to claim 1, which is characterized in that the damping unit hinder the damping force of ribbon backrush with
The reduction of ribbon residue backrush amount and increase.
3. coiler according to claim 1, which is characterized in that the one end at first jiao of end, which protrudes outward to be formed with, determines
Position bar, is formed with guide post on the outside of the locating rod, the spring is contained on the other side mounting plate of the frame and opens up
Sliding slot in, in the guide post, one end of the spring is supported in the locating rod spring pocket, the other end bearing
The locating rod is pushed to and the sliding slot on one end inner wall along its length of the sliding slot, and then in original state
Other end inner wall along its length abuts against；Second jiao of end includes first positioning column and the second positioning column at interval, institute
Stating positioning surface includes being respectively formed at the first positioning surface of first positioning column and the second positioning column outer surface and second fixed
Plane；The rotating connector includes the first rotating shaft being arranged on the outside of first positioning column and is arranged in second positioning
The second shaft on the outside of column, the first rotating shaft and the coaxial arrangement of the second shaft, the first rotating shaft are rotatably connected on the frame
On the side mounting plate of frame, second shaft is rotatably connected on the other side mounting plate of the frame.
4. a kind of Webbing take-up device, which is characterized in that including coiler described in claim 1-3 any one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510108726.1A CN106032136B (en) | 2015-03-12 | 2015-03-12 | Coiler, Webbing take-up device and safety belt coiling controlling method |
| CN201811156745.1A CN109263596B (en) | 2015-03-12 | 2015-03-12 | Retractor and seat belt winding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510108726.1A CN106032136B (en) | 2015-03-12 | 2015-03-12 | Coiler, Webbing take-up device and safety belt coiling controlling method |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811156745.1A Division CN109263596B (en) | 2015-03-12 | 2015-03-12 | Retractor and seat belt winding device |
Publications (2)
| Publication Number | Publication Date |
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| CN106032136A CN106032136A (en) | 2016-10-19 |
| CN106032136B true CN106032136B (en) | 2019-01-11 |
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| CN201811156745.1A Active CN109263596B (en) | 2015-03-12 | 2015-03-12 | Retractor and seat belt winding device |
| CN201510108726.1A Active CN106032136B (en) | 2015-03-12 | 2015-03-12 | Coiler, Webbing take-up device and safety belt coiling controlling method |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811156745.1A Active CN109263596B (en) | 2015-03-12 | 2015-03-12 | Retractor and seat belt winding device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107344541B (en) * | 2017-07-25 | 2019-07-12 | 海南飞宇实业有限公司 | Hydraulic cushion actuating seatbelt |
| CN112978338B (en) * | 2021-04-26 | 2021-08-13 | 常州铭赛机器人科技股份有限公司 | Pushing mechanism |
| WO2023220953A1 (en) * | 2022-05-18 | 2023-11-23 | 浙江吉利控股集团有限公司 | Retractor, seat belt device, and apparatus |
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| CN2752541Y (en) * | 2004-12-24 | 2006-01-18 | 河北科技大学 | Magnetic flow variable liquid damper |
| CN1970353A (en) * | 2005-11-24 | 2007-05-30 | 高田株式会社 | Safety belt recoiler, safety belt device, vehicle possessing safety belt device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106032136A (en) | 2016-10-19 |
| CN109263596A (en) | 2019-01-25 |
| CN109263596B (en) | 2020-04-24 |
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