CN107757286B - The suspension system of automobile and the automobile with it, control method - Google Patents
The suspension system of automobile and the automobile with it, control method Download PDFInfo
- Publication number
- CN107757286B CN107757286B CN201610702141.7A CN201610702141A CN107757286B CN 107757286 B CN107757286 B CN 107757286B CN 201610702141 A CN201610702141 A CN 201610702141A CN 107757286 B CN107757286 B CN 107757286B
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- locking
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- nut
- motor
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/005—Suspension locking arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/40—Type of actuator
- B60G2202/42—Electric actuator
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a kind of suspension system of automobile and the automobile with it, control method.Suspension system includes: damper, spring assembly, locking system, ball-screw and driving motor.Spring assembly includes top tray, lower tray and shock-absorbing spring.Locking system includes unlocking motor, self-locking casing, self-locking body and supporting element, unlocking motor is located at the side of damper cylinder, at least one sliding slot is equipped with from lock barrel, self-locking body is equipped with the lock tongue extending into sliding slot, the internal perisporium of each sliding slot is equipped with the first self-locking tooth extended in vertical direction, and lock tongue is equipped with the second self-locking tooth with the first self-locking tooth engagement.Ball-screw includes screw rod and nut, and nut and lower tray cooperate to drive lower tray vertical shift.Driving motor is located on damper cylinder, and driving motor is cooperated by transmission mechanism with ball-screw to drive nut mobile relative to screw rod.Suspension system according to the present invention, it is convenient for safeguarding, periodic replacement accessory is not needed, use cost is reduced.
Description
Technical field
The present invention relates to vehicular field, the suspension system more particularly, to a kind of automobile and the automobile with it, controlling party
Method.
Background technique
The handling and comfort of automobile is increasingly valued by people, vehicle suspension system in the handling of automobile and
It is played a crucial role in terms of comfort.Suspension is the general name of all force transmission connections between vehicle body and wheel.It
Mainly it is made of spring (such as leaf spring, helical spring, torsion-bar spring), damper and guiding mechanism etc..When automobile is not
On same road surface when driving, since suspension system realizes the resilient support between vehicle body and wheel, vehicle body is significantly reduced
With the vibration of wheel, to guarantee the normally travel of automobile.It also causes the vehicle body when vehicle starting, braking, turning to be bowed simultaneously
Phenomena such as facing upward, nod and rolling, to change the ride comfort and manipulation stability of running car.
Automotive suspension type can be divided into passive suspension, semi-active suspension and Active suspension.Semi-active suspension and Active suspension
Belong to electronically controlled suspension system.Wherein, the mechanical suspension system that passive suspension is made of spring and damper, half is main
The suspension system that dynamic suspension is made of the spring and damper of variable characteristic, Active suspension are the rigidity that can actively adjust suspension
With the system of damping.So-called Active suspension is to form a closed loop control using active or passive controlling member in suspension systems
System processed actively makes a response according to the moving situation of vehicle and pavement behavior, to inhibit the vibration and swing of vehicle body, makes suspension
Always it is in optimal vibration damping state.Power resources structure used by existing electronically controlled suspension system is extremely complex, needs
It regularly replaces, maintenance protection is at high cost.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, the present invention proposes a kind of suspension system of automobile, and it is simple and compact for structure, it occupies little space, it is convenient for safeguarding.
The present invention also proposes a kind of automobile with above-mentioned suspension system.
The present invention proposes a kind of control method of the suspension system of automobile again.
The suspension system of automobile according to an embodiment of the present invention, comprising: damper, the damper include damper cylinder
Telescopically it is located at the intracorporal main shaft of damper cylinder；Spring assembly, the spring assembly include top tray, lower tray and
Shock-absorbing spring, the top tray are fixed on the end of the stretching damper cylinder of the main shaft, and the lower tray can erect
It is directly movably located on the damper cylinder, the both ends of the shock-absorbing spring are separately fixed at the top tray and the subiculum
On disk；Latch assembly, the latch assembly include unlocking motor, self-locking casing, self-locking body and supporting element, the unlocking motor and
The supporting element is fixed on the damper cylinder, and the unlocking motor is located at the side of the damper cylinder, it is described from
Latch fitting is located on the supporting element, and the unlocking motor is cooperated by driving member and the self-locking body to drive the self-locking body to turn
Dynamic, the self-locking casing is fixed in the lower tray, described to be equipped at least one sliding slot from lock barrel, on the self-locking body
Equipped with the lock tongue extending into the sliding slot, the internal perisporium of each sliding slot is equipped with first extended in vertical direction certainly
Tooth is locked, the lock tongue is equipped with the second self-locking tooth with the described first self-locking tooth engagement；Ball-screw, the ball-screw include
Screw rod and nut, the screw rod are located on the damper cylinder, the relatively described screw rod vertical shift of the nut, the nut
Cooperate with the lower tray to drive the lower tray vertical shift；Driving motor, the driving motor are located at the damper
On cylinder, the driving motor is cooperated by transmission mechanism and the ball-screw to drive the opposite screw rod shifting of the nut
It is dynamic.
The suspension system of automobile according to an embodiment of the present invention, by using driving motor, transmission mechanism and ball-screw
The mode of cooperation drives the vertical shift of lower tray, realizes the purpose of the height of adjustment vehicle body, simple and compact for structure, occupied space
It is small, it is convenient for safeguarding, periodic replacement accessory is not needed, use cost is reduced.
In some embodiments of the invention, the screw rod is fixed on the damper cylinder, and the driving motor drives
The nut rotation is moved, matable assembly is equipped between the nut and the lower tray, the matable assembly is configured to institute
State the rotation and the mobile vertical shift for being converted to the lower tray of nut.
In some embodiments of the invention, the transmission mechanism includes reduction assemblies and transmission component, the transmission group
Part includes the first driving wheel, the first driven wheel and conveyer belt, and the motor shaft of the driving motor passes through the reduction assemblies and institute
The cooperation of the first driving wheel is stated to drive first driving wheel to rotate, the conveyer belt respectively with first driving wheel and described
The cooperation of first driven wheel, first driven wheel are fixed on the nut or the screw rod.
Preferably, the reduction assemblies are planetary gear speed-reduction component.
In some embodiments of the invention, the supporting element be thrust bearing, the thrust bearing include upper end cover, under
End cap and rotary body, the upper end cover and the lower cover are fixed on the damper cylinder, and the rotary body is rotationally
It is located between the upper end cover and the lower cover, the self-locking body is fixed on the rotary body.
In some embodiments of the invention, the matable assembly is plain thrust bearing.
In some embodiments of the invention, the periphery wall upper casing of the main shaft has dust cover.
In some embodiments of the invention, the driving member includes the second driving wheel, the second driven wheel and unlock gear,
The motor shaft of second driving wheel and the unlocking motor cooperates to be rotated with being driven by the unlocking motor, and described second actively
Wheel engages cooperation with second driven wheel, and the unlock gear is fixed on the self-locking body and nibbles with second driven wheel
Close cooperation.
In some embodiments of the invention, the unlocking motor is stepper motor.
In some embodiments of the invention, the suspension system of automobile further includes the rotation for acquiring the driving motor
The Hall sensor of data, the damper is equipped with the displacement sensor for acquiring the vertical displacement of the nut, described
Hall sensor and institute's displacement sensors are suitable for being connected to form the control system of closed loop with the car running computer of the automobile respectively
System.
In some embodiments of the invention, the sliding slot is multiple, week of the multiple sliding slot in the self-locking casing
It is spaced apart upwards, the lock tongue is multiple, the multiple lock tongue and the one-to-one correspondence cooperation of the multiple sliding slot.
Automobile according to an embodiment of the present invention, the suspension system including automobile according to the above embodiment of the present invention.
Automobile according to an embodiment of the present invention can be adjusted by the way that suspension system according to the above embodiment of the present invention is arranged
The height of vehicle body, structure is simple, occupies little space, convenient for safeguarding, does not need periodic replacement accessory, reduces use cost.
The control method of the suspension system of automobile according to an embodiment of the present invention, the suspension system are according in the present invention
The suspension system of embodiment is stated, when the control method includes the following steps: to unlock the suspension system, first by described
Driving motor drives the nut to move so that the mobile unloading realized to the lock tongue of the lower tray relative to the screw rod,
Controlling the unlocking motor later drives the self-locking body to be rotated such that the described first self-locking tooth and the second self-locking tooth are de-
From.
Control method according to an embodiment of the present invention, by first making the first self-locking tooth and second again later to lock tongue unloading
Self-locking tooth is detached from, and so as to reduce the abrasion of lock tongue, extends the service life of locking system.
Detailed description of the invention
Fig. 1 is the schematic diagram according to the suspension system of the embodiment of the present invention；
Fig. 2 is the assembling schematic diagram according to the part of the suspension system of the embodiment of the present invention；
Fig. 3 is the assembling schematic diagram according to the part of the suspension system of the embodiment of the present invention；
Fig. 4 is the cooperation schematic diagram according to the unlocking motor of some embodiments of the invention, driving member and self-locking body；
Fig. 5 is according to the supporting element of some embodiments of the invention and the cooperation schematic diagram of self-locking body；
Fig. 6 is the schematic diagram according to the self-locking casing of the embodiment of the present invention；
Fig. 7 is the cooperation schematic diagram according to the driving motor of the embodiment of the present invention, transmission mechanism and ball-screw；
Fig. 8 is according to the driving motor of the embodiment of the present invention and the cooperation schematic diagram of transmission mechanism；
Fig. 9 is the cooperation schematic diagram of the driving motor and primary planet pinion component according to the embodiment of the present invention；
Figure 10 is the cooperation schematic diagram of the driving motor and center sun gear according to the embodiment of the present invention；
Figure 11 is the schematic diagram according to the primary planet pinion component in the transmission mechanism of the embodiment of the present invention；
Figure 12 is the cooperation schematic diagram according to planetary gear and planet carrier in the transmission mechanism of the embodiment of the present invention；
Figure 13 is the schematic diagram according to the secondary planetary gear component in the transmission mechanism of the embodiment of the present invention；
Figure 14 is the schematic diagram according to the protection cap of the reduction assemblies of the embodiment of the present invention；
Figure 15 is the relation schematic diagram according to all parts of the suspension system of the embodiment of the present invention；
Figure 16 is the control flow chart according to the suspension system of the embodiment of the present invention.
Appended drawing reference:
Suspension system 1000,
Damper 1, damper cylinder 10, main shaft 11,
Spring assembly 2, top tray 20, lower tray 21, shock-absorbing spring 22, avoid holes 210,
Locking system 3, unlocking motor 30, latch assembly 31, self-locking casing 311, sliding slot 3111, the first self-locking tooth 3112,
Matching hole 3113, self-locking body 312, lock tongue 3121, the second self-locking tooth 3121a, supporting element 313, driving member 32, the second driving wheel
321, the second driven wheel 322, unlock gear 323,
Ball-screw 4, screw rod 40, nut 41,
Driving motor 5,
Transmission mechanism 6, reduction assemblies 60, center sun gear 601, level-one sun gear 602, primary planet wheel 603, level-one row
Carrier 604, connecting shaft 605, secondary planet wheel 606, secondary planet frame 607, output shaft 608, transmission component 61, the first driving wheel
610, the first driven wheel 611, conveyer belt 612,
Matable assembly 7,
Dust cover 8,
Hall sensor 9,
Fixing shell 15, protection cap 16, support frame 17, welded nut 18.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
The suspension system 1000 of automobile according to an embodiment of the present invention is described in detail below with reference to Fig. 1-Figure 16, wherein suspension
System 1000 is used to connect the vehicle body and wheel of automobile, each automobile can be correspondingly arranged multiple suspension systems 1000.
As shown in Figure 1-Figure 3, the suspension system 1000 of automobile according to an embodiment of the present invention, comprising: damper 1, spring
Component 2, locking system 3, ball-screw 4 and driving motor 5.Wherein, damper 1 includes damper cylinder 10 and telescopically sets
Main shaft 11 in damper cylinder 10.It is understood that damper 1 can use damper in the prior art, vibration damping
The working principle of device 1 has been the prior art, here just without detailed description.
Spring assembly 2 includes top tray 20, lower tray 21 and shock-absorbing spring 22, and top tray 20 is fixed on the stretching of main shaft 11
On the end of damper cylinder 10, top tray 20 is suitable for being fixed on the vehicle body of automobile, and lower tray 21 is located at being vertically movable
On damper cylinder 10, the both ends of shock-absorbing spring 22 are separately fixed in top tray 20 and lower tray 21, to pass through lower tray
21 height for moving up and down adjustable vehicle body.
Locking system 3 include unlocking motor 30, self-locking casing 311, self-locking body 312 and supporting element 313, self-locking casing 311,
Self-locking body 312 and supporting element 313 form latch assembly 31, and latch assembly 31 is matched with damper cylinder 10 and lower tray 21 respectively
It closing, unlocking motor 30 and latch assembly 31 cooperate to position lower tray 21 by latch assembly 31 or release and position, that is,
It says, by latch assembly 31, lower tray 21 can be positioned on damper cylinder 10, i.e., lower tray 21 can not move vertically at this time
Dynamic, entire suspension system 1000 is in lockup state.When releasing positioning to lower tray 21, lower tray 21 is with respect to damper cylinder
10 are vertically movable, and entire suspension system 1000 is in the unlocked state.
Unlocking motor 30 and supporting element 313 are fixed on damper cylinder 10, and unlocking motor 30 is located at damper cylinder 10
Side, that is to say, that relatively moved between unlocking motor 30 and lower tray 21, in order to avoid lower tray 21 and unlocking motor 30
Between interfere, the position of the correspondence unlocking motor 30 of lower tray 21 is provided with avoid holes 210.
Self-locking body 312 is located on supporting element 313, and unlocking motor 30 is cooperated by driving member 32 and self-locking body 312 to drive
Self-locking body 312 rotates, that is to say, that self-locking body 312 can only be rotated relative to damper cylinder 10.Self-locking casing 311 is fixed on down
On pallet 21, specifically, self-locking casing 311 can be fixed in lower tray 21 by screw.Since self-locking casing 311 is located at
The outside of self-locking body 312, therefore self-locking casing 311 is equipped with the matching hole 3113 of evacuation driving member 32.
Self-locking casing 311 is equipped at least one sliding slot 3111, and self-locking body 312 is equipped with the lock extending into sliding slot 3111
Tongue 3121, the internal perisporium of each sliding slot 3111 are equipped with the first self-locking tooth 3112 extended in vertical direction, on lock tongue 3121
Equipped with the second self-locking tooth 3121a engaged with the first self-locking tooth 3112.Optionally, sliding slot 3111 is multiple, multiple sliding slots 3111
In the circumferentially-spaced distribution of self-locking casing 311, lock tongue 3121 is multiple, multiple lock tongues 3121 and multiple 3,111 1 a pair of sliding slots
It should cooperate.
When self-locking body 312 turns to so that the first self-locking tooth and the second self-locking tooth 3121a are engaged, self-locking body 312 and from
Lock tube pipe 311 be locked up and can not activity, lower tray 21 is locked up.When self-locking body 312 turns to so that the first self-locking tooth and
When two self-locking tooth 3121a are detached from, self-locking casing 311 can be unlocked with respect to 312 vertical shift of self-locking body, lower tray 21 to be subtracted with opposite
Vibration device cylinder 10 is vertically movable.Wherein it can rotate forward or invert by driving unlocking motor 30, so that the first self-locking tooth
With the second self-locking tooth 3121a engagement or disengaging.Wherein each sliding slot 3111 is correspondingly arranged a lock tongue 3121.
It follows that latch assembly 31 is simple and reliable for structure, and it is easy to maintenance, cost is reduced, automobile chassis is easy to implement
It is intelligent.
Optionally, unlocking motor 30 is stepper motor, and still optionally further, unlocking motor 30 drives self-locking body 312 every time
15 degree of rotation.
Ball-screw 4 includes screw rod 40 and nut 41, and screw rod 40 is located on damper cylinder 10, and nut 41 is with respect to screw rod 40
Vertical shift, nut 41 and lower tray 21 cooperate to drive 21 vertical shift of lower tray.It is understood that nut 41 and screw rod
Matching relationship between 40 can there are many situations, such as can be screw rod 40 and be fixed on damper cylinder 10, nut 41
Opposite screw rod 40 can be rotated and be vertically movable, or be that screw rod 40 is rotatably arranged on damper cylinder 10, nut 41
Only opposite screw rod 40 is vertically movable.It will also be appreciated that when nut 41 can be rotated with respect to screw rod 40, nut 41 and subiculum
Matable assembly 7 should be set between disk 21, and matable assembly 7 is configured to the rotation of nut 41 and movement being converted to lower tray 21
Vertical shift, to guarantee that lower tray 21 can only vertical shift.Preferably, matable assembly 7 is plain thrust bearing, wherein putting down
Face thrust bearing includes first part and second part, first part can opposed second part rotation, nut 41 is tightly attached to first
Part, second part are tightly attached in lower tray 21.It is understood that the working principle of plain thrust bearing has been existing skill
Art is just not described in detail here.
Driving motor 5 is located on damper cylinder 10, and driving motor 5 is cooperated by transmission mechanism 6 and ball-screw 4 to drive
Dynamic nut 41 is mobile relative to screw rod 40.Specifically, when screw rod 40 is fixed on damper cylinder 10, driving motor 5 passes through biography
Nut 41 is driven to rotate for motivation structure 6 so that nut 41 can be mobile relative to screw rod 40, and driving motor 5 should be movably arranged at vibration damping
With mobile with nut 41 on device cylinder 10.When screw rod 40 is rotatably arranged on damper cylinder 10, driving motor 5 passes through biography
Motivation structure 6 drives screw rod 40 to rotate.
When needing to adjust the height of vehicle body, unlocking motor 30 drives the rotation of self-locking body 312 so that the first self-locking tooth first
3112 and second self-locking tooth 3121a be detached from so that lower tray 21 releases positioning, lower tray 21 can opposite damper cylinder 10 vertically
Mobile, then driving motor 5 drives ball-screw 4 to work by transmission mechanism 6, so that nut 41 can be perpendicular with respect to screw rod 40
Translation is dynamic, drives lower tray 21 with respect to 10 vertical shift of damper cylinder during 41 vertical shift of nut.So as to
Adjust the height of vehicle body.
When adjusting the height of vehicle body to meet demand, unlocking motor 30 drive self-locking body 312 to rotate so that first from
Tooth 3112 and the second self-locking tooth 3121a engagement are locked, so that lower tray 21 is located on damper cylinder 10, i.e., lower tray 21 can not
Mobile, entire suspension system 1000 is in lockup state, in the driving process of automobile, passes through damper 1 and shock-absorbing spring 22
Realize the resilient support between vehicle body and wheel.
The suspension system 1000 of automobile according to an embodiment of the present invention, by using driving motor 5, transmission mechanism 6 and rolling
The mode that ballscrew 4 cooperates drives the vertical shift of lower tray 21, realizes that the purpose of the height of adjustment vehicle body, structure are simply tight
It gathers, occupies little space, it is convenient for safeguarding, periodic replacement accessory is not needed, use cost is reduced.
In some embodiments of the invention, transmission mechanism 6 includes reduction assemblies 60 and transmission component 61, transmission component 61
Including the first driving wheel 610, the first driven wheel 611 and conveyer belt 612, the motor shaft of driving motor 5 by reduction assemblies 60 with
The cooperation of first driving wheel 610 to drive the first driving wheel 610 to rotate, conveyer belt 612 respectively with the first driving wheel 610 and first from
Driving wheel 611 cooperates, and the first driven wheel 611 is fixed on nut 41 or screw rod 40.Specifically, being driven when driving motor 5 is run
Dynamic motor 5 drives the rotation of the first driving wheel 610 by reduction assemblies 60, and the first driving wheel 610 drives first by conveyer belt 612
Driven wheel 611 rotates, and nut 41 or screw rod 40 is driven to rotate when the first driven wheel 611 rotates.So that transmission mechanism 6
Structure is simple.
Specifically, the first driving wheel 610 can be belt pulley, and the first driven wheel 611 can be belt pulley, conveyer belt 612
It can be belt；Or first driving wheel 610 can be sprocket wheel, the first driven wheel 611 can be sprocket wheel, and conveyer belt 612 can be with
For chain.Of course, it should be understood that the structure of transmission component 61 is without being limited thereto, such as the tooth of two engagement cooperations can be set
Wheel, to realize transmission purpose by gear engaged transmission.In specific example of the invention, 611 housing of the first driven wheel is in spiral shell
It is interference fitted on mother 41 and with nut 41.In some examples of the invention, the radius of the first driving wheel 610 is driven less than first
The radius of wheel 611.
In some currently preferred embodiments of the present invention, reduction assemblies 60 are planetary gear speed-reduction component, thus by being equipped with
Planetary gear speed-reduction component can obtain biggish transmission ratio, and transmission efficiency is high.Specifically, as shown in Fig. 8-Figure 14, deceleration group
Part 60 includes center sun gear 601, primary planet wheel 603, primary planet carrier 604, level-one sun gear 602, secondary planet wheel 606
With secondary planet frame 607, for 601 housing of center sun gear on the motor shaft of driving motor 5, primary planet wheel 603 is fixed on one
Grade planet carrier 604, primary planet wheel 603 are engaged with center sun gear 601, and 602 housing of level-one sun gear is being fixed on level-one row
In connecting shaft 605 in carrier 604, secondary planet wheel 606 is fixed on secondary planet frame 607, secondary planet wheel 606 and level-one
Sun gear 602 engages.Driving center sun gear 601 rotates when running to driving motor 5, and center sun gear 601 drives level-one
The rotation of planetary gear 603 is to realize that primary speed-down, primary planet wheel 603 drive primary planet carrier 604 to rotate, primary planet carrier 604
Level-one sun gear 602 is driven to rotate, level-one sun gear 602 drives the rotation of secondary planet wheel 606 to realize Second-Stage Rotating Speed, second level row
Star-wheel 606 drives secondary planet frame 607 to rotate, and secondary planet frame 607 is equipped with output shaft 608, and 610 housing of the first driving wheel exists
To pass through the driving rotation of output shaft 608 on output shaft 608.Of course, it should be understood that planetary gear speed-reduction component can also be
Primary speed-down component or the above reduction assemblies of three-level and three-level.Simultaneously it will also be appreciated that the number of primary planet wheel 603
It can be defined according to the actual situation with the number of secondary planet wheel 606, such as in specific example of the invention, level-one row
Star-wheel 603 is four, and secondary planet wheel 606 is four.
In some embodiments of the invention, supporting element 313 is thrust bearing, and thrust bearing includes upper end cover, lower cover
And rotary body, upper end cover and lower cover are fixed on damper cylinder 10, rotary body is rotatably arranged at upper end cover and lower cover
Between, self-locking body 312 is fixed on rotary body.So as to improve the strength of reliability of locking system 3.It is also understood that
It is that the working principle of thrust bearing has been the prior art, here just without detailed description.
In some embodiments of the invention, as shown in figure 4, driving member 32 includes the second driving wheel 321, the second driven wheel
322 and unlock gear 323, the motor shaft of the second driving wheel 321 and unlocking motor 30 cooperates to be driven and be rotated by unlocking motor 30,
Second driving wheel 321 engages cooperation with the second driven wheel 322, unlock gear 323 be fixed on self-locking body 312 and with it is second driven
322 engagement cooperation of wheel.Specifically, the motor shaft of unlocking motor 30 drives 321 turns of the second driving wheel when unlocking motor 30 is run
Dynamic, the second driving wheel 321 is engaged with the second driven wheel 322 to drive the second driven wheel 322 to rotate, the second driven wheel 322 and solution
For the engagement of lock gear 323 to drive unlock gear 323 to rotate, unlock gear 323 drives self-locking body 312 to rotate when rotating.
Further, the radius of the second driven wheel 322 is greater than the radius of the second driving wheel 321, unlocks the radius of gear 323
Greater than the second driven wheel 322 radius to realize double reduction.Of course, it should be understood that the structure of driving member 32 is not limited to
This, driving member 32 can also be pulley drive etc., and one of belt pulley is fixed on self-locking body 312.
As shown in Figure 1-Figure 3, in some embodiments of the invention, the periphery wall upper casing of main shaft 11 has dust cover 8, prevents
The upper end of dust hood 8 can be fixed in top tray 20, so as to play dust-proof effect, external substance be avoided to enter suspension
System 1000 and the service life for influencing suspension system 1000.
In some embodiments of the invention, suspension system 1000 further includes the spin data for acquiring driving motor 5
Hall sensor 9, damper 1 is equipped with displacement sensor for acquiring the vertical displacement of nut 41,9 He of Hall sensor
Displacement sensor is suitable for being connected to form the control system of closed loop with the car running computer of automobile (ECU) respectively.To car running computer
It can be according to the pulse of the rotation of the collected displacement information of displacement sensor and the collected driving motor 5 of Hall sensor 9
Signal adjusts the revolving speed of driving motor 5 to adjust the position of lower tray 21, to adjust the height of vehicle body in real time.
Automobile according to an embodiment of the present invention, the suspension system 1000 including automobile according to the above embodiment of the present invention.
Automobile according to an embodiment of the present invention can by the way that suspension system 1000 according to the above embodiment of the present invention is arranged
To adjust the height of vehicle body, structure is simple, occupies little space, convenient for safeguarding, do not need periodic replacement accessory, reduce use at
This.
The control method of the suspension system of automobile according to an embodiment of the present invention, suspension system are according to the above-mentioned reality of the present invention
It applies the suspension system 1000 of example and passes through driving motor first when control method includes the following steps: to unlock suspension system 1000
5 driving nuts 41 move so that lower tray 21 is mobile relative to screw rod 40, so that self-locking casing 311 is mobile to realize to lock
The unloading of tongue 3121, control later unlocking motor 30 drive self-locking body 312 be rotated such that the first self-locking tooth 3112 and second from
Tooth 3121a is locked to be detached from.
Control method according to an embodiment of the present invention, by first making the first self-locking tooth again later to the unloading of lock tongue 3121
3112 and second self-locking tooth 3121a be detached from, so as to reduce the abrasion of lock tongue 3121, extend the service life of locking system 3.
The suspension system 1000 of the automobile of specific embodiment according to the present invention is described in detail below with reference to Fig. 1-Figure 16.
As shown in Figure 1-Figure 3, suspension system 1000 according to an embodiment of the present invention, comprising: damper 1, spring assembly 2,
Locking system 3, ball-screw 4 and driving motor 5.Wherein, damper 1 is located at including damper cylinder 10 and telescopically vibration damping
Main shaft 11 in device cylinder 10.
Spring assembly 2 includes top tray 20, lower tray 21 and shock-absorbing spring 22, and top tray 20 is fixed on the stretching of main shaft 11
On the end of damper cylinder 10, top tray 20 is suitable for being fixed on the vehicle body of automobile, and 21 housing of lower tray is in damper cylinder
On 10 and opposite damper cylinder 10 is vertically movable, and 22 housing of shock-absorbing spring is on damper 1 and the both ends of shock-absorbing spring 22
It is separately fixed in top tray 20 and lower tray 21.Of course, it should be understood that shock-absorbing spring 22, which can also be, is located at damper 1
Outside.
Locking system 3 includes unlocking motor 30, latch assembly 31 and driving member 32, and wherein unlocking motor 30 is stepping electricity
Machine, stepper motor can be connected with the car running computer of automobile, and car running computer controls the forward/reverse of stepper motor, to be solved
Lock and locking.The input signal of unlocking motor 30 is the switching signal of car running computer.Unlocking motor 30 is located at self-locking casing 311
Side and unlocking motor 30 can be fixed on damper cylinder 10 by connection frame.That is, unlocking motor 30 and lower tray
It is relatively moved between 21, in order to avoid being interfered between lower tray 21 and unlocking motor 30, the corresponding unlock electricity of lower tray 21
The position of machine 30 is provided with avoid holes 210.
Latch assembly 31 includes self-locking casing 311, self-locking body 312 and supporting element 313.Supporting element 313 is thrust bearing, only
The upper end cover and lower cover of thrust bearing are separately fixed on damper cylinder 10, and self-locking body 312 is fixed on the rotation of thrust bearing
It can be rotated on body with the upper end cover of opposite thrust bearing and lower cover.The periphery wall of self-locking body 312 is equipped with multiple lock tongues 3121,
Each lock tongue 3121 is equipped with the second self-locking tooth 3121a engaged with the first self-locking tooth 3112.
Self-locking casing 311 is formed as cylindric and is fixed in lower tray 21, and self-locking 311 housing of casing is in damper cylinder
On 1, the internal perisporium of self-locking casing 311 is equipped with multiple sliding slots 3111, and the internal perisporium of each sliding slot 3111 is equipped in vertical side
The self-locking tooth 3112 of first upwardly extended, multiple lock tongues 3121 are corresponded with multiple sliding slots 3111, and each lock tongue 3121 protrudes into
Into a sliding slot 3111.
Driving member 32 includes the second driving wheel 321, the second driven wheel 322 and unlock gear 323, the second driving wheel 321 with
The motor shaft cooperation of unlocking motor 30 is rotated with being driven by unlocking motor 30, and the second driving wheel 321 is engaged with the second driven wheel 322
Cooperation, unlock gear 323 are fixed on self-locking body 312 and engage cooperation with the second driven wheel 322.Unlock gear 323 can other than
It covers on self-locking body 312 and is interference fitted with self-locking body 312.Unlock gear 323 and ball-screw 4 keep certain gap, really
Unlock gear 323 is protected during the work time not by any blocking.
Specifically, the second driven wheel 322 may include upper breast wheel and lower breast wheel, and upper breast wheel and lower breast wheel are coaxial
Rotation, the second driving wheel 321 are engaged with upper breast wheel, and lower breast wheel is engaged with unlock gear 323, so as to realize that multistage subtracts
The purpose of speed.
When unlocking motor 30 is run, the motor shaft of unlocking motor 30 drives the rotation of the second driving wheel 321, the second driving wheel
321 engage with the second driven wheel 322 to drive the second driven wheel 322 to rotate, and the second driven wheel 322 is engaged with unlock gear 323
To drive unlock gear 323 to rotate, unlock gear 323 drives self-locking body 312 to rotate when rotating.It is self-locking when self-locking body 312 rotates
The self-locking tooth 3121a of second on each lock tongue 3121 on part 312 can be engaged or be detached from the first self-locking tooth 3112.When self-locking
When part 312 turns to so that the first self-locking tooth and the second self-locking tooth 3121a are engaged, self-locking body 312 and self-locking casing 311 are locked up
And can not be movable, lower tray 21 is locked up, and suspension system 1000 is in lockup state, and the weight of entire vehicle body is by each suspension system
The lock tongue 3121 of the self-locking body 312 of system 1000 carries.When self-locking body 312 turns to the first self-locking tooth and the second self-locking tooth 3121a
When disengaging, self-locking casing 311 can be unlocked with respect to 312 vertical shift of self-locking body, lower tray 21 can with opposite damper cylinder 10
Vertical shift, suspension system 1000 is in the unlocked state, and lower tray 21 can be gone up and down.
Specifically, for unlocking motor 30 before unlock (i.e. before self-locking body 312 and the relative movement of self-locking casing 311), driving is electric
The work of machine 5 is unloaded with the lock tongue 3121 to self-locking body 312.
Ball-screw 4 includes screw rod 40 and nut 41, and screw rod 40 is fixed on damper cylinder 10, and nut 41 can be with respect to spiral shell
The rotation of bar 40 and vertical shift, are equipped with plain thrust bearing between nut 41 and lower tray 21, plain thrust bearing includes first
Part and second part, first part can opposed second part rotation, nut 41 is adjacent to first part, second part and subiculum
The lower surface of disk 21 is adjacent to.
Driving motor 5 is movably arranged on damper cylinder 10 by support frame 17, and the motor shaft of driving motor 5 passes through
Transmission mechanism 6 and nut 41 cooperate with the rotation of nut 41.Specifically, driving motor 5 is direct current permanent magnet motor, thus speed adjustable range
Width, control is very easy, controls more accurate.
Transmission mechanism 6 includes reduction assemblies 60 and transmission component 61, and reduction assemblies 60 include center sun gear 601, level-one
Planetary gear 603, primary planet carrier 604, level-one sun gear 602, secondary planet wheel 606 and secondary planet frame 607, center sun gear
For 601 housings on the motor shaft of driving motor 5, primary planet wheel 603 is fixed on primary planet carrier 604, primary planet wheel 603 with
Center sun gear 601 engages, and 602 housing of level-one sun gear is in the connecting shaft 605 being fixed on primary planet carrier 604, second level
Planetary gear 606 is fixed on secondary planet frame 607, and secondary planet wheel 606 is engaged with level-one sun gear 602, secondary planet frame 607
It is equipped with output shaft 608.
Transmission component 61 includes the first driving wheel 610, the first driven wheel 611 and conveyer belt 612, outside the first driving wheel 610
It covers on output shaft 608, conveyer belt 612 cooperates with the first driving wheel 610 and the first driven wheel 611 respectively, the first driven wheel 611
It is fixed on nut 41.
Driving center sun gear 601 rotates when driving motor 5 is run, and center sun gear 601 drives 603 turns of primary planet wheel
Dynamic to realize that primary speed-down, primary planet wheel 603 drive primary planet carrier 604 to rotate, primary planet carrier 604 drives level-one sun gear
602 rotations, level-one sun gear 602 drive the rotation of secondary planet wheel 606 to realize Second-Stage Rotating Speed, and secondary planet wheel 606 drives two
Grade planet carrier 607 rotates, and for the rotation of output shaft 608 on secondary planet frame 607 to drive the first driving wheel 610 to rotate, first is main
Driving wheel 610 drives the rotation of the first driven wheel 611 by conveyer belt 612, and the first driven wheel 611 drives nut 41 to rotate, nut 41
With respect to 40 vertical shift of screw rod when rotation.
The transmittance process of dynamical system power are as follows: driving motor 5 --- reduction assemblies 60 --- transmission component 61 --- nut
41 --- plain thrust bearing --- lower trays 21.
Driving motor 5 and its transmission mechanism 6 are assemblied in fixing shell 15, and fixing shell 15 is by driving motor 5 and its passes
Motivation structure 6 is integrally connected to the lower surface of lower tray 21.Protection cap 16 is used to support the first driven wheel in fixing shell 15
611 rotary shaft simultaneously carries out transmission mechanism 6 dust-proof.The entire dynamical system that driving motor 5 and transmission mechanism 6 form is under
The lifting of pallet 21 and go up and down.
Hall sensor 9 is located in protection cap 16, and damper cylinder 10 is equipped with the displacement for detecting the displacement of nut 41
Sensor, Hall sensor 9 and displacement sensor are connected to form the control system of closed loop with the car running computer of vehicle respectively.It drives
The revolving speed of dynamic motor 5 and direction are acquired using such as two-way Hall chip MLX92251 of Hall sensor 9.Driving motor 5 it is defeated
Enter the pwm signal that signal carrys out bike computer.
Specifically, suspension system 1000 further includes for detecting whether lock tongue 3121 is located at unlocked position and lock position
Detection device can be for example travel switch, and detection device is connected with car running computer, and car running computer is according to the detection of detection device
As a result the working condition of unlocking motor 30 is controlled.The output signal of unlocking motor 30 is the switching signal that detection device gives.
Specifically, the design parameter selection of suspension system 1000 can be as follows shown in Tables 1 and 2:
Table 1
Table 2
Suspension system 1000 according to an embodiment of the present invention is initialized first after being installed on automobile, specific to walk
Rapid as follows: 1, unlocking motor works；2, unlock feedback signal back is completed；3, unlocking motor stops；4, driving motor 5 downshifts extremely
Lowest order is until motor rotation blockage；5, car running computer records system origin.Suspension system according to an embodiment of the present invention is installed
It is interposition that 1000 automobile, which defaults gear in product export,.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (13)
1. a kind of suspension system of automobile characterized by comprising
Damper, the damper include damper cylinder and are telescopically located at the intracorporal main shaft of damper cylinder；
Spring assembly, the spring assembly include top tray, lower tray and shock-absorbing spring, and the top tray is fixed on the main shaft
The stretching damper cylinder end on, the lower tray is located on the damper cylinder with being vertically movable, described
The both ends of shock-absorbing spring are separately fixed in the top tray and the lower tray；
Locking system, the locking system include unlocking motor, self-locking casing, self-locking body and supporting element, the unlocking motor and
The supporting element is fixed on the damper cylinder, and the unlocking motor is located at the side of the damper cylinder, it is described from
Latch fitting is located on the supporting element, and the unlocking motor is cooperated by driving member and the self-locking body to drive the self-locking body to turn
Dynamic, the self-locking casing is fixed in the lower tray, and the self-locking casing is equipped at least one sliding slot, on the self-locking body
Equipped with the lock tongue extending into the sliding slot, the internal perisporium of each sliding slot is equipped with first extended in vertical direction certainly
Tooth is locked, the lock tongue is equipped with the second self-locking tooth with the described first self-locking tooth engagement；
Ball-screw, the ball-screw include screw rod and nut, and the screw rod is located on the damper cylinder, the nut
The relatively described screw rod vertical shift, the nut and the lower tray cooperate to drive the lower tray vertical shift；
Driving motor, the driving motor are located on the damper cylinder, the driving motor by transmission mechanism with it is described
Ball-screw cooperation is to drive the nut mobile relative to the screw rod.
2. the suspension system of automobile according to claim 1, which is characterized in that the screw rod is fixed on the damper cylinder
On body, the driving motor drives the nut rotation, and matable assembly is equipped between the nut and the lower tray, described to match
Seaming element is configured to the rotation of the nut and the mobile vertical shift for being converted to the lower tray.
3. the suspension system of automobile according to claim 1, which is characterized in that the transmission mechanism include reduction assemblies and
Transmission component, the transmission component include the first driving wheel, the first driven wheel and conveyer belt, and the motor shaft of the driving motor is logical
The reduction assemblies and first driving wheel is crossed to cooperate to drive first driving wheel to rotate, the conveyer belt respectively with institute
The first driving wheel and first driven wheel cooperation are stated, first driven wheel is fixed on the nut or the screw rod.
4. the suspension system of automobile according to claim 3, which is characterized in that the reduction assemblies are planetary gear speed-reduction
Component.
5. the suspension system of automobile according to claim 1, which is characterized in that the supporting element is thrust bearing, described
Thrust bearing includes upper end cover, lower cover and rotary body, and the upper end cover and the lower cover are fixed on the damper cylinder
On, the rotary body is rotatably arranged between the upper end cover and the lower cover, and the self-locking body is fixed on the rotation
On body.
6. the suspension system of automobile according to claim 2, which is characterized in that the matable assembly is plane thrust axis
It holds.
7. the suspension system of automobile according to claim 1, which is characterized in that the periphery wall upper casing of the main shaft has anti-
Dust hood.
8. the suspension system of automobile according to claim 1, which is characterized in that the driving member include the second driving wheel,
The motor shaft of second driven wheel and unlock gear, second driving wheel and the unlocking motor cooperates by the unlocking motor
Driving rotation, second driving wheel engage cooperation with second driven wheel, and the unlock gear is fixed on the self-locking body
Above and with second driven wheel engage cooperation.
9. the suspension system of automobile according to claim 1 to 8, which is characterized in that the unlocking motor is step
Into motor.
10. the suspension system of automobile according to claim 1, which is characterized in that further include for acquiring the driving electricity
The Hall sensor of the spin data of machine, the damper are equipped with the displacement sensing for acquiring the vertical displacement of the nut
The car running computer that device, the Hall sensor and institute's displacement sensors are suitable for respectively with the automobile is connected to form closed loop
Control system.
11. the suspension system of automobile according to claim 1, which is characterized in that the sliding slot is multiple, the multiple cunning
For slot in the circumferentially-spaced distribution of the self-locking casing, the lock tongue is multiple, the multiple lock tongue and the multiple sliding slot one
One corresponding matching.
12. a kind of automobile, which is characterized in that the suspension system including automobile described according to claim 1 any one of -11.
13. a kind of control method of the suspension system of automobile, the suspension system is according to any one of claim 1-11 institute
The suspension system stated, which is characterized in that logical first when the control method includes the following steps: to unlock the suspension system
Crossing the driving motor drives the nut to move so that the mobile realization of the lower tray to the lock tongue relative to the screw rod
Unloading, control later the unlocking motor drive the self-locking body be rotated such that the described first self-locking tooth and described second from
Tooth is locked to be detached from.
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| CN201610702141.7A CN107757286B (en) | 2016-08-22 | 2016-08-22 | The suspension system of automobile and the automobile with it, control method |
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| CN201610702141.7A CN107757286B (en) | 2016-08-22 | 2016-08-22 | The suspension system of automobile and the automobile with it, control method |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11135889B2 (en) | 2018-05-22 | 2021-10-05 | Beijingwest Industries Co., Ltd. | Latch assembly for raising and lowering the height of a vehicle |
| CN112172435B (en) * | 2020-09-22 | 2021-11-02 | 广东博智林机器人有限公司 | Suspension device, steering wheel and mobile chassis |
| IT202000028382A1 (en) * | 2020-11-25 | 2022-05-25 | Marelli Suspension Systems Italy S P A | SHOCK ABSORBER AND SPRING ASSEMBLY FOR VEHICLE SUSPENSION WITH ELECTROMECHANICAL ADJUSTMENT DEVICE FOR ADJUSTING THE VERTICAL POSITION OF THE SPRING AND RELATED LOCKING SYSTEM, AND METHOD OF ADJUSTING THE VERTICAL POSITION OF THE SPRING |
| US11993328B2 (en) * | 2022-01-17 | 2024-05-28 | Volvo Truck Corporation | Lifting arrangement for lifting a wheel axle of a vehicle |
| CN114321258B (en) * | 2022-02-10 | 2024-03-19 | 西安华欧精密机械有限责任公司 | Electric variable stroke spiral spring type shock absorber |
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| CN101970254A (en) * | 2008-03-12 | 2011-02-09 | 奥迪股份公司 | Wheel suspension for steered wheels of motor vehicles |
| WO2013181301A1 (en) * | 2012-05-29 | 2013-12-05 | Firestone Industrial Products Company, Llc | Gas spring and gas damper assembly with a releasable axial - locking assembly |
| CN202914612U (en) * | 2012-10-23 | 2013-05-01 | 长春孔辉汽车科技有限公司 | Push rod type variable rigidity adjustable oil gas spring |
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