CN109050194A - Mechanical active suspension system - Google Patents
Mechanical active suspension system Download PDFInfo
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- CN109050194A CN109050194A CN201810983364.4A CN201810983364A CN109050194A CN 109050194 A CN109050194 A CN 109050194A CN 201810983364 A CN201810983364 A CN 201810983364A CN 109050194 A CN109050194 A CN 109050194A
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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
- B60G17/015—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
- B60G17/016—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 characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
- B60G17/0162—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 characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input mainly during a motion involving steering operation, e.g. cornering, overtaking
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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
- B60G17/015—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
- B60G17/016—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 characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
- B60G17/0164—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 characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input mainly during accelerating or braking
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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
- B60G17/015—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
- B60G17/019—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 characterised by the type of sensor or the arrangement thereof
- B60G17/01908—Acceleration or inclination sensors
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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
- B60G17/015—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
- B60G17/019—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 characterised by the type of sensor or the arrangement thereof
- B60G17/01933—Velocity, e.g. relative velocity-displacement sensors
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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
- B60G17/021—Spring characteristics, e.g. mechanical springs and mechanical adjusting means the mechanical spring being a coil spring
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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
- B60G17/025—Spring characteristics, e.g. mechanical springs and mechanical adjusting means the mechanical spring being a torsion spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/10—Acceleration; Deceleration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/20—Speed
- B60G2400/204—Vehicle speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/25—Stroke; Height; Displacement
- B60G2400/252—Stroke; Height; Displacement vertical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/40—Steering conditions
- B60G2400/41—Steering angle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/50—Pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/90—System Controller type
- B60G2800/91—Suspension Control
- B60G2800/914—Height Control System
Abstract
The present invention discloses a kind of vehicle mechanical formula active suspension system.Solve that current Active suspension is at high price, the excessively high problem of later period cost of upkeep, and the performance of its some aspects is made to have further raising.It is characterized in that spring fixed end is coupled by leading screw and nut mechanism or worm gear mechanism with vehicle body in suspension.ECU controls servo motor driving nut or worm screw rotation, makes screw rod and worm gear that the associated swing arm connect be driven to generate elevating movement relative to vehicle body, realizes the high low adjustment of vehicle chassis.The soft or hard adjusting of suspension is realized by the way of multistage spring in suspension.ECU is operated according to each motor of data real-time control of each sensor feedback, by adjusting the lifting of each independent suspension, can offset vehicle body toe-out on turns, brake is nodded, start to walk the movement to come back.In Length discrepancy double wishbone suspension, a transverse arm is coupled using eccentric shaft with vehicle body, and ECU controls servo motor driving worm and wormwheel and drives the inclination angle on eccentric shaft turns adjustment wheel and ground constant.
Description
Technical field
The present invention relates to a kind of vehicle suspension system more particularly to a kind of mechanical active suspension systems.
Background technique
Ideal vehicle suspension system should be accomplished: when vehicle on bumpy road, cross-country road when driving, it is desirable that chassis
Want higher, suspension wants softer, to improve the passability and comfort of vehicle；When vehicle is on paved road, expressway surface
When running at high speed, it is desirable that chassis wants lower, and suspension is hard, to improve the stability of vehicle and handling.Traditional
Under chassis technology, handling and comfort is born conflict, can only generally be partial to the instruction of a side, designers are
It is the equalization point for finding the two as far as possible.So the Active suspension that a kind of energy high energy is low, the soft energy of energy is hard naturally can be more by joyous
It meets.There are air suspension, hydraulic suspension and three kinds of electromagnetic suspension using wider active suspension system at present.
Air suspension is made of air spring, adjustable damper, air pump etc., has adjusting chassis height and change suspension soft
Hard ability can be adjusted optimally as needed, possess good applicability, be at present using most Active suspensions
Form.The adjusting of its chassis height is mainly determined by air spring length, therefore adjustable range is little, while also because of air suspension
Structure is more complicated, so expensive, failure rate is also higher, will cause air pump overheat in frequent use process and influences the longevity
Life, air spring are generally just needed replacing at ten thousand kilometers of 6-8, and later period cost of upkeep is very high.
Each wheel of hydraulic suspension has a hydraulic shunt pump, fills oil mass and damping valve size by adjusting oil cylinder
It is soft or hard to adjust suspension height.Compared to air suspension, the load capacity of hydraulic suspension is strong, small in size, facilitates arrangement.Deficiency
Place is in response to that speed is slow, and adjustable range is narrow, and the problem of needing replacing after certain milimeter number is used to still have.
Electromagnetic suspension is the viscosity for controlling electromagnetic liquid in shock absorber by adjusting size of current, changes its damping, from
And it is soft or hard to adjust shock absorber.Feature is that reaction speed is fast, highly-safe.But it is not adjustable chassis height, shock-absorbing can only be passed through
Device is soft or hard to adjust suspension, calculates semi-active suspension.
Current active suspension system is served only in some luxury cars because cost is too high and the lower factor of cost performance.Institute
With there is an urgent need to a cheap and durable, later period cost of upkeep is low, and it is able to satisfy Active suspension various functions requirement
Suspension system, for meeting the consumption demand of the public people.
Summary of the invention
Present invention aim to address current active suspension systems, and at high price, component needed replacing using the regular period,
The problem that later period upkeep cost is high and performance is not comprehensive enough.
In order to solve problem above, the present invention provides a kind of mechanical active suspension system, in suspension on spiral spring
End is coupled by worm gear mechanism with vehicle frame or vehicle body by leading screw and nut mechanism or torsion bar type spring fixed end, automatically controlled dress
(ECU) control servo motor driving nut and worm screw rotation are set, then is moved by leading screw and nut mechanism or worm gear mechanism band
Spring and vehicle body opposite with the joining swing arm of spring generate elevating movement, realize automobile chassis lifting and each independent suspension height
It adjusts.
The mechanical active suspension system uses two springs or more spring juxtapositions, spiral bullet in main spring in suspension
Spring is connected with screw rod, and torsion bar type spring is connected with worm gear, and auxiliary spring is directly fixedly connected with vehicle body, secondary when chassis increases
Spring is hanging, and only main spring supports, and suspension is softer at this time；When certain altitude is down on chassis, main spring and auxiliary spring are common in suspension
Support, suspension is harder at this time.The soft or hard adjusting of suspension is realized with this.As used the auxiliary spring of multiple and different height in parallel in suspension,
The multistage hardness that suspension can be achieved is adjusted.
The mechanical active suspension system, each independent suspension are driven by an independent servo motor, ECU
According to steering wheel angle sensor, vehicle speed sensor, acceleration transducer, vehicle body displacement sensor, height sensor, system
The data of the feedbacks such as dynamic pressure force snesor control the movement of each servo motor, adjust by adjusting the height of each independent suspension
Whole body gesture.
The mechanical active suspension system, in the double transverse arms of Length discrepancy or double yoke suspensions, one of swing arm with
The connecting link pin of vehicle body uses eccentric shaft structure, and eccentric shaft one end is connected with worm gear mechanism, and is controlled by one by ECU
Servo motor driving, by the rotation of eccentric shaft, change a swing arm and position of the vehicle body coupling spindle relative to vehicle body, make vehicle
The arbitrary height taken turns in the range of chassis can keep invariable with the inclination angle on road surface.
Beneficial effects of the present invention:
(1) present invention utilizes feed screw nut and snail using on the basis of traditional helical spring and torsion-bar spring
The mechanical structure of worm and gear realizes the high low adjustment of suspension, and the soft or hard adjusting of suspension is realized using multistage spring.Because of its knot
Structure is pure mechanic structure connection, so more stablizing durable, longer life expectancy than air suspension, can be used all the life；Traditional spiral shell
The manufacturing cost for revolving spring and the mechanical components such as torsion-bar spring and feed screw nut is also cheaper.
(2) adjustable height on chassis depends on the screw rod height being connected with helical spring and consolidates with torsion-bar spring in the present invention
The rotational angle of the connected worm gear in fixed end, it is unrelated with spring heights.So compared with air suspension, suspension chassis liter of the invention
Drop range it is bigger, can between cross country chassis height and sport chassis height free switching.
(3) present invention is using servo motor as the air pump and liquid in driving unit, with air suspension and hydraulic suspension
Press pump is compared, and technology maturation structure is simple, and faster, it is more accurate to control for reaction.
(4) leading screw and nut mechanism and worm gear mechanism used in the present invention has good latching characteristics, servo electricity
The machine only acting when suspension need to adjust, does not need to do work again after being adjusted in place, so the energy that this suspension system consumes is also more
It is few.
(5) present invention adjusts coupled position of the transverse arm in double wishbone suspension with respect to vehicle body, solution using eccentric shaft
Double wishbone suspension of having determined adjusts height hour wheel inclination angle on a large scale and changes big problem.
(6) the servo motor driving mechanism used in the present invention, can accurately adjust the high-low-position of each independent suspension
It sets.In vehicle turning and brake, air suspension, hydraulic suspension and electromagnetic suspension are all by improving spring or shock absorber mostly
Hardness come reduce vehicle body turning when inclination and brake when nodding action.And the present invention can in Ackermann steer angle, according to
Each sensing data increases outboard axle, reduces inside suspension；In vehicle brake, two front wheels suspension is increased, is supported completely with this
Disappear Ackermann steer angle flare and brake when nodding action, keep vehicle body more steady comfortable.
Compared with existing active suspension system, mechanical active suspension system of the invention, structure more stablize it is durable,
Cost is lower, and it is more accurate to control, and function is also more comprehensive.
Detailed description of the invention
Fig. 1 is the one kind implemented according to the present invention while including that the vehicle suspension system of helical spring and torsion-bar spring shows
It is intended to.
Fig. 2 is a kind of example structure schematic three dimensional views for the wishbone suspension implemented according to the present invention.
When Fig. 3 is that suspension is turned down in embodiment described in Fig. 2, the major and minor common holding state schematic diagram of spring.
Fig. 4 is that status diagram is turned up in suspension in embodiment described in Fig. 2.
Fig. 5 is that the rear suspension implemented according to the present invention uses a kind of embodiment schematic three dimensional views of torsion-bar spring.
Fig. 6 is eccentric shaft part axonometric drawing of the present invention.
Fig. 7 be in embodiment described in Fig. 2 eccentric axial adjustment Top Crossbeam in a, the schematic diagram of tri- kinds of different location states of b, c.
Piece mark described in attached drawing: 1, vehicle frame；2, lower cross arm；3, Top Crossbeam；4, front shock-absorber；5, main spring；6, spring
Support plate；7, auxiliary spring；8, bogie；9, screw rod；10, nut；11, thrust bearing；12, nut support set；13, ball ring；14,
Upper support seat；15, set nut is supported；16, nut check part；17,18 bevel gear；19, screw rod anti-bull stick；20, preceding main motor；
21, preceding auxiliary-motor；22, eccentric shaft；23, worm gear；24, worm screw；25, torsion-bar spring；26, torsion bar spring bracket；27, rear main motor；
28, worm gear；29, worm screw；30, worm and gear frame；31, rear shock absorber；32, shock absorber upper bracket；33, auxiliary spring upper bracket；34, secondary
Spring；35, support base under auxiliary spring；36, trailing arm；37, swing arm support rod；38, torsion bar spring torque arm；39,ECU；40, steering wheel angle
Sensor；41, braking and accelerator pedal sensor；42, brake-pressure sensor；43, acceleration transducer；44, vehicle body is displaced
Sensor；45, height sensor；46, vehicle speed sensor.Motor described above is all servo motor.
Specific embodiment
Exemplary embodiment of the present invention is described below with reference to accompanying drawings.Identical label indicates phase throughout the specification
With part, the identical parts in symmetrical mechanism are omitted from duplicate label and description.Attached drawing is only preferably to retouch
Idea of the invention is stated, attached drawing is not only restricted to the understanding of concept of the present invention.
1, the high low adjustment of suspension.
As shown in Figure 1 and Figure 2, Fig. 2 is a kind of Length discrepancy double wish-bone arm type front suspension embodiment.Lower cross arm 2, Top Crossbeam 3 and turn
A wishbone suspension mechanism, the upper end and 9 series connection of screw rod of main spring 5 and shock absorber 4, the lower end of shock absorber 4 are constituted to frame 8
It is connected using pin shaft and lower cross arm 2, the lower end of main spring 5 and auxiliary spring 7 is supported by spring supporting disk 6.Screw rod 9 by nut 10,
Thrust bearing 11, nut support set 12,13 support base 14 of ball ring are connected with vehicle frame 1.Nut support, which covers 12 upper ends, support
Nut 15 is covered, there is nut fastener 16 in the centre of nut 10, and the upper end of nut 10 is connected by key with bevel gear 17.Screw rod is anti-
The rotation of the limitation screw rod 9 of bull stick 19.
ECU 39 controls the forward and backward of main motor 20, and preceding main motor 20 drives nut 10 to rotate by bevel gear 18,17,
The screw rod 9 cooperated with nut 10 is realized and is moved up and down.Screw rod 9 drives main spring 5, shock absorber 4 and lower cross arm 2 to move together, real
The high low adjustment of existing suspension.
It is illustrated in figure 3 state when suspension is turned down.
It is illustrated in figure 4 state when suspension is turned up.
As shown in Figure 1, shown in Figure 5, Fig. 5 is a kind of rear suspension embodiment using torsion-bar spring.Torsion-bar spring 25 is in torsion bar spring
Rotated in bracket 26, the fixing end of torsion bar spring 25 is fixedly connected with turbine 28, (due to worm gear 28 rotation adjusting range not
Greatly, therefore part of it is only taken).Worm gear 28 is connected by worm screw 29, worm and gear frame 30 with vehicle frame 1.Torsion-bar spring 25 it is another
One end is connected by torsion bar spring torque arm 38, swing arm support rod 37 with trailing arm 36.
The forward and backward of main motor 27 after being controlled by ECU 39, rear main motor 27 drive worm screw 29 to rotate, and worm screw 29 drives snail
Wheel 28 and torsion-bar spring 25, torsion bar spring torque arm 38 rotate, and torsion bar spring torque arm 38 drives swing arm support rod 37, about 36 trailing arm to transport
It is dynamic, realize the high low adjustment of suspension.
2, the soft or hard adjusting of suspension.
As shown in Fig. 2, main spring 5 and auxiliary spring 7, shock absorber 4 are coaxial side by side in suspension, the lower end of main spring 5 passes through spring supporting
Disk 6 is connected with lower cross arm 2, and the upper end of main spring 5 covers 12, ball ring by screw rod 9, nut 10, thrust bearing 11, nut support
13, upper support seat 14 couples with vehicle frame 1.The upper end of auxiliary spring 7 and the lower end of nut support set 12 are connected, then pass through ball ring
13, upper support frame 14 couples with vehicle frame 1.
As shown in Figure 2, Figure 4 shows, when suspension is turned up, the lower end of auxiliary spring 7 is not contacted with spring supporting disk 6, and auxiliary spring 7 is in outstanding
Dummy status, only main spring 5 support, and suspension is relatively soft at this time, are comfort conditions.
As shown in figure 3, the lower end of main spring 5 and auxiliary spring 7 is all contacted with spring supporting disk 6, major and minor spring when suspension is turned down
Common support, suspension is harder at this time, is motion state.
As shown in figure 5, when suspension increases, auxiliary spring 34 is in vacant state, at this time only in torsion bar rear suspension
There is torsion-bar spring 25 to support, suspension is in softer comfort conditions.When suspension is turned down, auxiliary spring support base 35 connects with auxiliary spring 34
Touching, torsion bar spring 25 and auxiliary spring 34 support jointly at this time, and suspension is then harder, are motion state.
3, the adjustment at inclination angle is taken turns.
In the double transverse arms of currently used Length discrepancy or double yoke suspensions, when the adjustment of the height of suspension is excessive, it can change
The inclination angle of wheel and road surface, to make tire wear unevenly and change the road holding of tire.To change such situation, the present invention
Top Crossbeam is adjusted using eccentric shaft mechanism.
As shown in Figure 1, Figure 2, Figure 6 shows, the both ends of eccentric shaft 22 couple with vehicle frame 1, intermediate eccentric part and Top Crossbeam 3
It connects, longer one end is connected by key with turbine 23.ECU 39 is calculated accordingly according to the signal data of height sensor 45
Data, then control auxiliary-motor 21 and drive worm screw 24 that worm gear 23, eccentric shaft 22 is driven to turn over certain angle, adjust 3 phase of Top Crossbeam
To the connection place position of vehicle frame 1, Top Crossbeam 3 pushes bogie 8 to adjust the angle of itself and ground, so that wheel be made to adjust on chassis
Any height in range can guarantee to remain unchanged with the inclination angle on road surface.
As shown in fig. 7, the coupled position that figure a figure b figure c is respectively adjustment 3 relative frame 1 of Top Crossbeam of eccentric shaft 22 is respectively
Location status when outer shifting, centre, interior shifting.
4, the control of suspension.
As shown in Figure 1, each independent suspension is driven by an independent servo motor, two main motors 20 drive respectively
Two front suspensions are moved, main motor 27 respectively drives two rear suspensions after two, and two auxiliary-motors 21 respectively drive eccentric shaft.ECU
39 according to steering wheel angle sensor 40, braking and accelerator pedal sensor 41, brake-pressure sensor 42, acceleration transducer
43, the signal datas of the feedbacks such as vehicle body displacement sensor 44, height sensor 45, vehicle speed sensor 46 controls main motor
20 and rear main motor 27 and auxiliary-motor 21 movement, adjust the high low state of each suspension.
For example, control vehicle body cornering roll: when the vehicle is turning, ECU 39 is according to steering wheel angle sensor 40, speed
The signal of the feedback of sensor 46, height sensor 45, vehicle body displacement sensor 44 increases outboard axle in real time, reduces
Inside suspension offsets the flare movement of vehicle body；Control vehicle body brake is nodded: ECU 39 is according to braking and accelerator pedal sensor
41, acceleration transducer 43, brake-pressure sensor 42, vehicle speed sensor 46, the feedback of height sensor 45 signal,
Increasing front suspension in real time reduces rear suspension, to offset the movement that vehicle body brake is nodded；It controls vehicle body to accelerate to come back: 39 basis of ECU
The signal data of braking and accelerator pedal sensor 41, the feedback of acceleration transducer 43, height sensor 45, before reduction
Suspension increases rear suspension, accelerates the movement to come back to offset vehicle body.
For another example: the control of suspension can be divided into intelligent mode and manual mode etc..Manual mode can be divided into cross-country, city again
Area, movement isotype.When Vehicular system is closed, chassis is minimized, and auxiliary spring can reduce the negative of main spring as main support
Lotus；Upon power-up of the system, chassis is according to reminiscence height；When vehicle load increases, ECU believes according to height sensor
Number adjustment suspension, makes vehicle body remain at certain altitude；Under off-road mode, suspension chassis is increased, and suspension is comfortable, while secondary
The presence of spring can prevent suspension backing again；Under the mode of urban district, suspension is down to common passenger-car chassis height；In motor pattern
Under, chassis is reduced to two-man act bearing height, and suspension is hardened, and center of gravity is lower, improves handling.
Under intelligent mode, ECU is according to the height of speed and body gesture adjust automatically suspension.Such as: when speed is super
When crossing some setting value, chassis just drops to motion state；When speed is reduced to some value, chassis is just increased to city's zone state；
When speed reduces, and body gesture changes greatly, then chassis is increased to cross-country status etc..
The above description is only an embodiment of the present invention, therefore practical range of the invention cannot be limited with this.
Claims (4)
1. a kind of mechanical active suspension system, it is characterised in that: the union end of helical spring and vehicle frame passes through silk in suspension
Stem nut mechanism or torsion-bar spring are coupled by worm gear mechanism with vehicle frame with vehicle frame fixing end；Electric control gear (ECU) control
Servo motor driving nut processed or worm screw rotation, then spring and and spring are driven by leading screw and nut mechanism or worm gear mechanism
Joining swing arm generates elevating movement with respect to vehicle body, realizes the high low adjustment and the lifting on chassis of each independent suspension.
2. mechanical active suspension system according to claim 1, it is characterised in that: in suspension simultaneously using two springs or more springs
The mode of column.In main supporting spring, spiral spring is connected by feed screw nut with vehicle frame, and torsion bar type spring passes through worm gear snail
Bar is connected with vehicle frame, and auxiliary spring directly couples with vehicle frame；When chassis increases, auxiliary spring is hanging, and only main spring supports, and hangs at this time
Frame is softer；When certain altitude is down on chassis, main spring supports jointly with auxiliary spring, and suspension is hardened at this time.It can be used in suspension multiple
Auxiliary spring parallel connection is, it can be achieved that the multistage hardness of suspension is adjusted.
3. mechanical active suspension system according to claim 1, it is characterised in that: each independent suspension is by one
The driving of independent servo motor, ECU according to steering wheel angle sensor, braking and accelerator pedal sensor, vehicle speed sensor plus
The data of the feedbacks such as velocity sensor, vehicle body displacement sensor, height sensor, brake-pressure sensor carry out real-time control
Each servo motor movement adjusts body gesture by adjusting the height of each independent suspension.
4. mechanical active suspension system according to claim 1, it is characterised in that: in Length discrepancy wishbone suspension
In, the connecting link pin of one of swing arm and vehicle body uses eccentric shaft structure, and eccentric shaft one end is connected with worm gear mechanism,
And driven by a servo motor by ECU control, change a swing arm and vehicle body connecting link pin by the rotation of eccentric shaft
Relative to the position of vehicle frame, make arbitrary height of the wheel in the range of chassis that can keep constant with the inclination angle on road surface.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810983364.4A CN109050194A (en) | 2018-08-28 | 2018-08-28 | Mechanical active suspension system |
| PCT/CN2018/114779 WO2020042366A1 (en) | 2018-08-28 | 2018-11-09 | Mechanical active suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810983364.4A CN109050194A (en) | 2018-08-28 | 2018-08-28 | Mechanical active suspension system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109050194A true CN109050194A (en) | 2018-12-21 |
Family
ID=64756221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810983364.4A Pending CN109050194A (en) | 2018-08-28 | 2018-08-28 | Mechanical active suspension system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109050194A (en) |
| WO (1) | WO2020042366A1 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422025A (en) * | 2019-07-05 | 2019-11-08 | 浙江吉利汽车研究院有限公司 | A kind of double yoke suspensions, double yoke suspension automatic regulating systems and method |
| CN110435376A (en) * | 2019-08-19 | 2019-11-12 | 北京理工大学 | A kind of suspension system, chassis and vehicle |
| CN110605947A (en) * | 2019-09-23 | 2019-12-24 | 安徽工程大学 | ROS (reactive oxygen species) scheduling system-based all-terrain independent suspension mobile robot for farm |
| CN110843446A (en) * | 2019-11-26 | 2020-02-28 | 湖北航天技术研究院特种车辆技术中心 | Suspension system and vehicle |
| CN111559216A (en) * | 2020-04-26 | 2020-08-21 | 东风汽车集团有限公司 | Double-fork arm suspension structure with adjustable vehicle body posture |
| CN112203910A (en) * | 2019-01-11 | 2021-01-08 | 黄聃晟 | Vehicle anchor brake device |
| CN112776552A (en) * | 2020-08-25 | 2021-05-11 | 东北财经大学 | Active control system for vehicle suspension |
| WO2021093693A1 (en) * | 2019-11-15 | 2021-05-20 | 石海军 | Mechanical active suspension mechanism |
| CN113859362A (en) * | 2021-09-08 | 2021-12-31 | 恒大新能源汽车投资控股集团有限公司 | Chassis structure and vehicle |
| CN114889386A (en) * | 2022-05-11 | 2022-08-12 | 东风德纳车桥有限公司 | Height-adjustable independent suspension and chassis system |
| US11548552B2 (en) | 2019-11-22 | 2023-01-10 | Industrial Technology Research Institute | Steering device and method thereof |
| CN116787989A (en) * | 2023-06-29 | 2023-09-22 | 江苏车驰汽车有限公司 | Device for controlling automobile suspension support hardness based on rotating speed and control method thereof |
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| CN112203910A (en) * | 2019-01-11 | 2021-01-08 | 黄聃晟 | Vehicle anchor brake device |
| CN110422025A (en) * | 2019-07-05 | 2019-11-08 | 浙江吉利汽车研究院有限公司 | A kind of double yoke suspensions, double yoke suspension automatic regulating systems and method |
| CN110435376A (en) * | 2019-08-19 | 2019-11-12 | 北京理工大学 | A kind of suspension system, chassis and vehicle |
| CN110605947A (en) * | 2019-09-23 | 2019-12-24 | 安徽工程大学 | ROS (reactive oxygen species) scheduling system-based all-terrain independent suspension mobile robot for farm |
| CN110605947B (en) * | 2019-09-23 | 2024-03-12 | 安徽工程大学 | All-terrain independent suspension mobile robot for farm based on ROS scheduling system |
| WO2021093693A1 (en) * | 2019-11-15 | 2021-05-20 | 石海军 | Mechanical active suspension mechanism |
| US11548552B2 (en) | 2019-11-22 | 2023-01-10 | Industrial Technology Research Institute | Steering device and method thereof |
| TWI790411B (en) * | 2019-11-22 | 2023-01-21 | 財團法人工業技術研究院 | A steering device and method thereof |
| CN110843446A (en) * | 2019-11-26 | 2020-02-28 | 湖北航天技术研究院特种车辆技术中心 | Suspension system and vehicle |
| CN111559216A (en) * | 2020-04-26 | 2020-08-21 | 东风汽车集团有限公司 | Double-fork arm suspension structure with adjustable vehicle body posture |
| CN112776552B (en) * | 2020-08-25 | 2023-01-10 | 东北财经大学 | Active control system for vehicle suspension |
| CN112776552A (en) * | 2020-08-25 | 2021-05-11 | 东北财经大学 | Active control system for vehicle suspension |
| CN113859362B (en) * | 2021-09-08 | 2022-06-28 | 恒大新能源汽车投资控股集团有限公司 | Chassis structure and vehicle |
| CN113859362A (en) * | 2021-09-08 | 2021-12-31 | 恒大新能源汽车投资控股集团有限公司 | Chassis structure and vehicle |
| CN114889386A (en) * | 2022-05-11 | 2022-08-12 | 东风德纳车桥有限公司 | Height-adjustable independent suspension and chassis system |
| CN116787989A (en) * | 2023-06-29 | 2023-09-22 | 江苏车驰汽车有限公司 | Device for controlling automobile suspension support hardness based on rotating speed and control method thereof |
| CN116787989B (en) * | 2023-06-29 | 2023-12-08 | 江苏车驰汽车有限公司 | Device for controlling automobile suspension support hardness based on rotating speed and control method thereof |
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