CN109398018A - It is promoted after one kind and turns to central axle loading chassis - Google Patents
It is promoted after one kind and turns to central axle loading chassis Download PDFInfo
- Publication number
- CN109398018A CN109398018A CN201811552216.3A CN201811552216A CN109398018A CN 109398018 A CN109398018 A CN 109398018A CN 201811552216 A CN201811552216 A CN 201811552216A CN 109398018 A CN109398018 A CN 109398018A
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- Prior art keywords
- steering
- promoted
- air bag
- thrust rod
- drive shaft
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Classifications
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- 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
- B60G15/08—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid 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
- B60G17/015—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
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/065—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by specially adapted means for varying pressurised fluid supply based on need, e.g. on-demand, variable assist
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/10—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of power unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
- B62D6/001—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits the torque NOT being among the input parameters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/128—Damper mount on vehicle body or chassis
-
- 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
- B60G2800/912—Attitude Control; levelling control
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
本发明公开了一种后提升转向中置轴载货车底盘，包括前空气悬架系统、前转向轴、驱动轴、后空气悬架系统、后提升转向系统和ECAS控制系统，前空气悬架系统包括承载气囊、气囊支架、减震器和平衡臂，前转向轴通过前空气悬架系统与车架连接；驱动轴和后提升转向系统通过后空气悬架系统与车架连接组成后悬架转向系统，后空气悬架系统设有承载气囊一、均衡梁、前上推力杆、前下推力杆、承载气囊二、提升气囊、后上推力杆、后下推力杆和提升气囊支架，后提升转向系统包括提升转向轴、电动助力缸和电控转向控制器部分。本发明可根据需求调整整车姿态，调节整车高度；减少整车油耗；缩小转弯半径；转向控制更为精确，车辆行驶更加安全。
The invention discloses a rear lift steering center axle truck chassis, comprising a front air suspension system, a front steering shaft, a drive shaft, a rear air suspension system, a rear lift steering system and an ECAS control system, and the front air suspension The system includes airbags, airbag brackets, shock absorbers and balance arms. The front steering shaft is connected to the frame through the front air suspension system; the drive shaft and the rear lift steering system are connected to the frame through the rear air suspension system to form a rear suspension. Steering system, rear air suspension system is equipped with bearing air bag 1, equalizing beam, front upper thrust rod, front lower thrust rod, bearing air bag 2, lifting air bag, rear upper thrust rod, rear lower thrust rod and lifting air bag bracket, rear lifting The steering system includes a lifting steering shaft, an electric booster cylinder and an electronically controlled steering controller. The present invention can adjust the posture of the whole vehicle and adjust the height of the whole vehicle according to the requirements; reduce the fuel consumption of the whole vehicle; reduce the turning radius; the steering control is more precise, and the vehicle travels more safely.
Description
Technical field
The present invention relates to a kind of central axle loading chassis, belong to heavy motor truck technical field.
Background technique
As the implementation of GB1589-2016, the landing of 9.21 overload remediation new policies and country arrange modularization central axle shipping
The propulsion of vehicle pilot, central axle goods train with its big volume, high efficiency, low oil consumption, high reliability, it is preceding get rid of case after can get rid of
It hangs, modularization is commutative etc., and advantages receive significant attention in the market in express delivery, cold chain, general goods fast freight etc..It is advised in GB1589-2016
Fixed, central axle goods train overall length is up to 20 meters, if allowed by national standard with completely 20 meters, central axle goods train will be in future
The dedicated semitrailer of the low plate of 17.5m will be substituted.In freight market, the dedicated semitrailer of the low plate of 17.5m is longer and high because of length
It spends low, the light goods of throwing such as daily necessities is drawn to have a clear superiority.According to LOAD FOR, central axle freight trains maximum autohrozed total mass
49t, it is lighter relative to 6x4 tractor truck chassis, but bearing capacity is identical, has more preferably goods space utilization rate.According to
Public security department's statistics, the dedicated semitrailer inventory of the low plate of 17.5m 110,000, mostly main force's vehicle of line haul.If this portion
After partite transport power missing, central axle goods train is possible to fill up this blank.Not only meet national legislation, but also there is greatly fortune
Amount, welcomes the opportunity of significant development.But central axle goods train has wheelbase length, turning radius relative to tractor truck
Big disadvantage, currently, the suspension system for having matching rear axle that can be promoted in the market, but the suspension system can only be in unloaded or underloading
Shi Tisheng rear axle, full load, rear axle can not be promoted, and can not solve the problems, such as that turning radius is big.In addition, when handling container, chassis
Since the variation chassis height of load can change during changing case, very big inconvenience is brought for handling container, some vehicles
Although having matched bridge air suspension system, front axle still uses plate spring structure, can not achieve the whole of chassis height and rises
Drop.
Summary of the invention
It can the technical problem to be solved by the present invention is in view of the defects existing in the prior art, provide that a kind of rear axle can promote
The central axle loading chassis of active steering.
In order to solve this technical problem, the present invention provides promotions after one kind to turn to central axle loading chassis, including preceding
Airsuspension system, front steering axis, drive shaft, rear airsuspension system, rear promotion steering system and ECAS control system, it is described
Front air suspension frame system includes that carrying air bag, air-bag support, damper and counter-jib, the front steering axis pass through front air suspension
System is connect with vehicle vehicle frame, and when carrying air bag height changes, the relative altitude of front steering axis and vehicle frame changes；The drive
Moving axis and the rear steering system that promoted are connect with vehicle vehicle frame by rear airsuspension system, collectively constitute rear suspension steering system,
Airsuspension system is equipped with carrying air bag one, equalizer, preceding upper thrust rod, preceding lower thrust rod, carrying air bag two, is promoted after described
Air bag, rear upper thrust rod, rear lower thrust rod and promotion air-bag support, it includes promoting steering shaft, electricity that steering system is promoted after described
Dynamic servo-cylinder and automatically controlled steering controller part, when carrying air bag height changes, drive shaft and afterwards promotion steering system and vehicle frame
Relative altitude change, orientation angle posture when preceding upper thrust rod and preceding lower thrust rod guarantee drive shaft height change is not
It changes, orientation angle posture when promoting steering system height change after rear upper thrust rod and the guarantee of rear lower thrust rod is not sent out
It is raw to change.
The equalizer of airsuspension system is fixed on the driving shaft after described, and carrying one lower part of air bag is fixed on equalizer
On, upper part is fixed on vehicle frame by air-bag support；The preceding lower thrust rod is connected by straight pin with drive shaft lower part, preceding
Upper thrust rod is connected by ball pin with drive shaft top；Carrying two top of air bag is fixed on vehicle frame by air-bag support, under
Portion, which is fixed on, to be promoted in steering shaft；Air bag upper end is promoted to be fixed in promotion steering shaft, lower end, which is fixed on, to be promoted on air-bag support,
Air-bag support is promoted to be fixedly connected with vehicle frame；Lower thrust rod is connected by straight pin with steering shaft lower portion is promoted afterwards, rear lifting force
Bar is connected by ball pin with steering shaft upper portion is promoted.
Steering system is promoted after described and uses electric-controlled hydraulic steering structure, including promotes steering shaft, electric boosted cylinder and electricity
Control steering controller；The electric boosted cylinder, which is assemblied in, to be promoted in steering shaft.
The promotion steering shaft include knuckle, track rod lever, knuckle arm, track rod, pivot stud and
Central siphon, when vehicle is turned right, the rotary angle transmitter in steering column can issue angular signal, automatically controlled steering control to vehicle CAN bus
Unit processed reads angular signal, calculates the displacement of electric boosted cylinder and control electric boosted cylinder oil inlet oil inlet, electric boosted cylinder
It stretches, pushes knuckle arm to turn left around pivot stud, left side knuckle turns left while passing through track rod lever
Right hand steering section is driven to turn left with track rod, the rear steering system that promoted is turned to the left, realizes that vehicle is actively turned right
Movement.
Airsuspension system is equipped with load sensing valve after described, and the load on awareness driven axis and promotion steering shaft is promoted and turned
To axis when falling, rear airsuspension system makes drive shaft and promotes steering shaft and rise to carry to body tail as a whole to make
With, and ECAS control system can be automatically the carrying air bag inflation/deflation in rear airsuspension system, make to drive axle load and
It promotes steering axle load and reaches preset ratio；When promoting steering shaft promotion, tire is apart from ground a certain distance, drive shaft list
Only vehicle rear load, ECAS control system can be according to load changes in real time to carrying one inflation/deflation of air bag；Carry air bag
One has load limit in itself, and when bearing bridge carrying air bag load is more than setting load limit, ECAS control system can will be promoted
Steering shaft, which is fallen, plays carrying to body tail as a whole with drive shaft.
The front air suspension frame system and the carrying air bag of rear airsuspension system can be single by central control system ECAS
Solely control, realization headstock or the tailstock raise and reduce.
The utility model has the advantages that the present invention matches air suspension, vehicle posture can be adjusted according to demand, adjust vehicle height；Using
ECAS electric suspension system realizes the automatic distribution and intelligent control of two or three axis axle loads；Steering shaft is promoted after matching, full load can
It is that drive shaft shares axle load as support shaft, reduces driving thrust load；Steering shaft is promoted after when deadhead operation to be promoted, on the one hand
Tire wear can be reduced, tire drag on the other hand can be reduced, to reduce complete-vehicle oil consumption；Promoting steering shaft afterwards can be actively
Turn to, in a limited space under, turning radius can be reduced；Steering system uses electric-controlled hydraulic steering system, and course changing control is more
Accurately, while by electronic control, it can be achieved that security mode control under the operating conditions such as high speed steering, promotion, reversing, makes vehicle driving
It is safer.
Detailed description of the invention
Fig. 1 is structural representation front view of the invention；
Fig. 2 is the structural schematic diagram of rear suspension steering system of the present invention；
Fig. 3 is the structural schematic diagram of promotion steering system after the present invention.
In figure: airsuspension system, 41 carrying air bags one, 5 behind 1 front air suspension frame system, 2 front steering axis, 3 drive shafts, 4
Promotion steering system, 51 carrying air bags two, 7 promote upper thrust rod, 11 before air bags, 8 electric boosted cylinders, 9 promotion steering shafts, 10 afterwards
Afterwards lower thrust rod behind lower thrust rod, 13 before upper thrust rod, 12,14 equalizers, 15 promoted air-bag supports, 16 track rod levers,
17 track rods, 18 knuckle arms, 19 knuckles, 20 stubs, 21 central siphons.
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
Fig. 1 show structural representation front view of the invention.
The present invention provides promoted to turn to central axle loading chassis, including front air suspension frame system 1, front steering axis after one kind
2, drive shaft 3, rear airsuspension system 4, rear promotion steering system 5 and ECAS control system.
The front air suspension frame system 1 includes carrying air bag, air-bag support, damper and counter-jib, the front steering axis 2
It is connect by front air suspension frame system 1 with vehicle vehicle frame, when carrying air bag height changes, front steering axis 2 is relatively high with vehicle frame
Degree changes.
The drive shaft 3 and it is rear promoted steering system 5 connect by rear airsuspension system 4 with vehicle vehicle frame, common group
At rear suspension steering system.
ECAS electronic control unit realizes the control of the pool to front air suspension frame system, rear airsuspension system, solves two
The automatic distribution of three axis axle loads and intelligent control, increase driving force, effectively solve to skid, eat the problems such as tire；The preceding air is outstanding
The carrying air bag 1 of frame system 1 and rear airsuspension system 4 can be controlled separately by central control system ECAS, realize headstock
Or the tailstock raises and reduces.
Fig. 2 show the structural schematic diagram of rear suspension steering system of the present invention.
Airsuspension system 4 is equipped with carrying air bag 1, equalizer 14, preceding upper thrust rod 10 and preceding lower thrust rod after described
12, air bag 2 51 is carried, air bag 7 is promoted, rear upper thrust rod 11, rear lower thrust rod 13, promotes air-bag support 15, the equalizer
14 are fixed in drive shaft 3, and carrying one 41 lower part of air bag is fixed on equalizer 14, and upper part is fixed on vehicle by air-bag support
On frame；The preceding lower thrust rod 12 is connected by straight pin with 3 lower part of drive shaft, and preceding upper thrust rod 10 passes through ball pin and drive shaft
3 tops are connected.
2 51 top of carrying air bag is fixed on vehicle frame by air-bag support, and its underpart, which is fixed on, promotes steering shaft 9
On；It promotes 7 upper end of air bag to be fixed in promotion steering shaft 9, lower end, which is fixed on, to be promoted on air-bag support 15, and air-bag support 15 is promoted
It is fixedly connected with vehicle frame；Lower thrust rod 14 is connected by straight pin with 9 lower part of steering shaft is promoted afterwards, and rear upper thrust rod 11 passes through ball
Pin is connected with 9 top of steering shaft is promoted；When carrying 2 51 height change of air bag, drive shaft 3 and afterwards promotion steering system 5 and vehicle
The relative altitude of frame changes, and preceding upper thrust rod 10 and preceding lower thrust rod 12 guarantee orientation angle when 3 height change of drive shaft
Degree posture does not change, and determines when promoting 5 height change of steering system after rear upper thrust rod 11 and the guarantee of rear lower thrust rod 13
Position angular pose does not change.
The promotion steering shaft 9 realizes by rear airsuspension system and is individually promoted that rear promoted when steering system axis 9 is promoted mentions
It rises air bag 7 to inflate, gasbag pressure increases, and air bag height increases, and promotes air sac belt in the case where promoting air-bag support reaction force acts
Steering system 5 is promoted after dynamic to increase；The carrying air bag 6 that steering shaft is promoted after connecting in airsuspension system after simultaneously is deflated, and is mentioned
Rising air bag 7 overcomes promotion 9 gravity of steering shaft to make to promote steering shaft promotion.It is that drive shaft shares axis that full load, which can be used as support bridge,
Lotus reduces driving thrust load, improves the drive shaft service life, and when deadhead operation, which promotes steering shaft, to be promoted, and on the one hand can reduce wheel
Tire abrasion, on the other hand can reduce tire drag, to reduce complete-vehicle oil consumption, improve vehicle economy, bring for user
Economic benefit.
Fig. 3 show the structural schematic diagram of promotion steering system after the present invention.
Steering system 5 is promoted after described and uses electric-controlled hydraulic steering structure, including promotes steering shaft 9,8 and of electric boosted cylinder
Automatically controlled steering controller.The electric boosted cylinder 8, which is assemblied in, to be promoted in steering shaft 9.It can be achieved to promote 9 active steering of steering shaft,
To reduce vehicle turning radius, keep trafficability more excellent, environmental suitability is stronger.
The promotion steering shaft 9 is by knuckle 19, track rod lever 16, knuckle arm 18, track rod 17, steering
Stub 20, central siphon 21 form.Knuckle 19 or so respectively has one, is respectively connected by the pivot stud 20 and central siphon 21 of the left and right sides
It connects, track rod lever 16 is fixed on knuckle 19, the spindle arm of the left and right sides is connected by track rod 17, passed through
Track rod lever 16 and track rod 17 guarantee the corner ratio of two sides knuckle 19.
Steering system is promoted after described and uses electric-controlled hydraulic steering structure, and electric powered steering controller can be read in vehicle CAN
Steering wheel angle signal, control hydraulic pump pump oil, electric boosted 8 expanding-contracting action of cylinder is controlled by hydraulic oil.Using automatically controlled liquid
Pressure mode keeps course changing control more accurate, avoids tire wear caused by as turning to inaccurate coordination, while passing through electronics control
System keeps vehicle driving safer, it can be achieved that security mode control under the operating conditions such as high speed steering, promotion, reversing.
Airsuspension system 4 is furnished with load sensing valve after described.
Embodiments of the present invention:
(1) the integrally-regulated embodiment of chassis height: front steering axis 2 is connected by front air suspension frame system 1 and vehicle vehicle frame
It connects, when air bag height changes, front steering axis 2 and the relative altitude of vehicle frame change；Drive shaft 3, the rear steering system 5 that promoted are led to
Later airsuspension system 4 is connect with vehicle vehicle frame, when carrying air bag height variation, drive shaft 3, it is rear promoted steering system 5 with
The relative altitude of vehicle frame changes, and preceding upper thrust rod 10 and preceding lower thrust rod 13 can guarantee and determine when 3 height change of drive shaft
Position angular pose does not change, it is same after upper thrust rod 11 and rear lower thrust rod 14 can guarantee after promote 5 height of steering system
Orientation angle posture when variation does not change.
All carrying air bags can be planned as a whole to control by central control system ECAS, by adjusting gas to carrying air bag inflation/deflation
The height of capsule.When carrying air bag inflation, air bag height is increased, and loading chassis height integrally increases, when carrying air bag is deflated, air bag
Height reduces, and loading chassis height integrally reduces.In addition, can be realized by central control system ECAS to front and back air suspension system
The independent control of system, is individually filled and deflated by the carrying air bag in forward and backward air suspension, realizes the raising and drop of headstock or the tailstock
It is low.The motor-driven adjusting of chassis height provides convenience condition to handling container, solves and raises asking for container by manpower or machine
Topic.
(2) load smart allocation embodiment: the load sensing valve of rear airsuspension system 4 can be with awareness driven axis 3 and promotion
Load in steering shaft 9 promotes steering shaft 9 when falling, and rear airsuspension system 4 makes drive shaft 3 and promotes 9 conduct of steering shaft
One entirety plays carrying to body tail, and ECAS control system can be automatically holding in rear airsuspension system 4
Carrier gas capsule inflation/deflation makes 3 load of drive shaft and promotion 9 load of steering shaft reach preset ratio, prevents road shocks or vehicle body
The problem of load change leads to bearing bridge or promotes steering shaft overload；When promoting the promotion of steering shaft 9, tire is certain apart from ground
Distance, the independent vehicle rear load of drive shaft 3, ECAS control system can according to load change in real time to carrying air bag one
41 inflation/deflations；Carrying air bag 1 has load limit in itself, when carrying one 41 load of air bag is more than to set load limit, ECAS
Control system, which can will promote steering shaft 9 and fall, plays carrying to body tail as a whole with drive shaft 3.
By load smart allocation function, ECAS control system makes to carry the air bag height that air bag 1 remains certain
Degree, can effectively absorb impact of the road surface to the impact and load of tire to vehicle body, to guarantee that vehicle vehicle body remains
In the vehicle height downward driving of setting, avoids jolting caused by because of road shocks and cargo is caused to damage.
(3) promote the independent enhanced feature embodiment of steering system afterwards: the rear steering system 5 that promoted can be promoted individually, after mention
It rises and promotes the inflation of air bag 7 when steering system 5 is promoted, gasbag pressure increases, and air bag height increases, and is promoting air-bag support reaction
The lower promotion air bag of power effect promotes steering system 5 after driving and increases；Steering shaft is promoted after connecting in airsuspension system after simultaneously
Carrying air bag 2 51 deflate, promoted air bag 7 overcome promoted 9 gravity of steering shaft make promoted steering shaft promoted.Pass through rear lifting force
The guiding of bar 11 and rear lower thrust rod 14 guarantees the back rake angle for promoting steering shaft and positioning appearance under the traction for promoting air bag 7
State.It promotes steering shaft promotion rear tyre and leaves ground, the carrying that do not recur effect.Vehicle is lightly loaded when driving, can will promote steering shaft
It raises up, reduces the rolling resistance that vehicle is generated due to promoting steering shaft, to reduce vehicle traveling oil consumption.
(4) promote steering system active steering function embodiment afterwards: promoting steering shaft 9 has turning function, and vehicle is right
When turning, the rotary angle transmitter in steering column can issue angular signal to vehicle CAN bus, and automatically controlled turning control cell is read
Angular signal in CAN bus calculates the displacement of electric boosted cylinder 8, at this time automatically controlled turning control cell control electric boosted cylinder 8 into
Hydraulic fluid port oil inlet, electric boosted cylinder 8 stretch, and knuckle arm 18 is pushed to turn left around pivot stud 20, left side knuckle 19 to
Turn left dynamic, right hand steering section 19 is driven by track rod lever 16 and track rod 17 while left side knuckle 19 rotates
It turns left, the rear steering system that promoted is turned to the left, realizes vehicle active right-hand bend movement.
Active steering can be realized according to driver actions in full state by promoting steering system afterwards, reduce vehicle turning
Radius also effectively prevents and eats tire phenomenon.
The present invention matches air suspension, can adjust vehicle posture according to demand, adjusts vehicle height；It is automatically controlled outstanding using ECAS
Frame system realizes the automatic distribution and intelligent control of two or three axis axle loads；Lift bridge after matching, full load can be used as support bridge to drive
Dynamic bridge shares axle load, reduces driving load per axle；Lift bridge can be promoted after when deadhead operation, on the one hand can reduce tire wear, separately
On the one hand tire drag can be reduced, to reduce complete-vehicle oil consumption；Lift bridge can turn to afterwards, in a limited space under, can contract
Tight turn radius；Steering system uses electric-controlled hydraulic steering system, and course changing control is more accurate, while by electronic control, can
It realizes security mode control under the operating conditions such as high speed steering, promotion, reversing, keeps vehicle driving safer.
The embodiment above of the present invention, is merely illustrative, be not it is only, it is all within the scope of the present invention or it is equivalent this
Change in the range of invention is surrounded by the present invention.
Claims (6)
1. being promoted after one kind and turning to central axle loading chassis, it is characterised in that: including front air suspension frame system (1), front steering
Axis (2), rear airsuspension system (4), promotes steering system (5) and ECAS control system, the preceding air at drive shaft (3) afterwards
Suspension system (1) includes that carrying air bag, air-bag support, damper and counter-jib, the front steering axis (2) pass through front air suspension
System (1) is connect with vehicle vehicle frame, and when carrying air bag height changes, front steering axis (2) and the relative altitude of vehicle frame change；
The drive shaft (3) and rear promoted steering system (5) are connect with vehicle vehicle frame by rear airsuspension system (4), are collectively constituted
Rear suspension steering system, the rear airsuspension system (4) are equipped with carrying air bag one (41), equalizer (14), preceding upper thrust rod
(10) and preceding lower thrust rod (12), carrying air bag two (51), promoted air bag (7), rear upper thrust rod (11), rear lower thrust rod
(13), promoted air-bag support (15), it is described after promoted steering system (5) include promoted steering shaft (9), electric boosted cylinder (8) and
Automatically controlled steering controller part, when carrying air bag height changes, drive shaft (3) and the rear phase for promoting steering system (5) and vehicle frame
To highly changing, preceding upper thrust rod (10) and preceding lower thrust rod (12) guarantee orientation angle when drive shaft (3) height change
Degree posture does not change, when promoting 5 height change of steering system after rear upper thrust rod (11) and rear lower thrust rod (13) guarantee
Orientation angle posture do not change.
2. being promoted after according to claim 1 and turning to central axle loading chassis, it is characterised in that: air suspension after described
The equalizer (14) of system (4) is fixed on drive shaft (3), and carrying air bag (41) lower part is fixed on equalizer (14), thereon
Portion is fixed on vehicle frame by air-bag support；The preceding lower thrust rod (12) is connected by straight pin with drive shaft (3) lower part, preceding
Upper thrust rod (10) is connected by ball pin with drive shaft (3) top；Carrying air bag two (51) top is fixed on by air-bag support
On vehicle frame, its underpart, which is fixed on, to be promoted on steering shaft (9)；It promotes air bag (7) upper end to be fixed in promotion steering shaft (9), lower end
It is fixed on and is promoted on air-bag support (15), promote air-bag support (15) and be fixedly connected with vehicle frame；Lower thrust rod (14) passes through circle afterwards
Pin is connected with steering shaft (9) lower part is promoted, and rear upper thrust rod (11) is connected by ball pin with steering shaft (9) top is promoted.
3. being promoted after according to claim 1 and turning to central axle loading chassis, it is characterised in that: promoted and turned to after described
System (5) uses electric-controlled hydraulic steering structure, including promotes steering shaft (9), electric boosted cylinder (8) and automatically controlled steering controller；
The electric boosted cylinder (8), which is assemblied in, to be promoted on steering shaft (9).
4. being promoted after according to claim 3 and turning to central axle loading chassis, it is characterised in that: the promotion steering shaft
(9) include knuckle (19), track rod lever (16), knuckle arm (18), track rod (17), pivot stud (20) and
Central siphon (21), when vehicle is turned right, the rotary angle transmitter in steering column can issue angular signal to vehicle CAN bus, and automatically controlled turn
Angular signal is read, the displacement of electric boosted cylinder (8) is calculated and controls electric boosted cylinder (8) oil inlet oil inlet to control unit,
Electric boosted cylinder (8) stretches, and pushes knuckle arm (18) to turn left around pivot stud (20), left side knuckle (19) is to the left
Rotation, simultaneously by track rod lever (16) and track rod (17) drive right hand steering section (19) turn left, after mention
It rises steering system to turn to the left, realizes vehicle active right-hand bend movement.
5. being promoted after according to claim 1 and turning to central axle loading chassis, it is characterised in that: air suspension after described
System (4) is equipped with load sensing valve, and the load on awareness driven axis (3) and promotion steering shaft (9) promotes steering shaft (9) and falling
When, rear airsuspension system (4) makes drive shaft (3) and promotes steering shaft (9) and rise to carry to body tail as a whole to make
With, and ECAS control system can be automatically the carrying air bag inflation/deflation in rear airsuspension system (4), make drive shaft (3)
Load and promotion steering shaft (9) load reach preset ratio；When promoting steering shaft (9) and being promoted, tire is certain apart from ground
Distance, individually vehicle rear load, ECAS control system can be according to load changes in real time to carrying air bag one for drive shaft (3)
(41) inflation/deflation；Carrying air bag one (41) has load limit in itself, when bearing bridge carrying air bag load is more than setting load limit
When, ECAS control system, which can will promote steering shaft (9) and fall to rise to carry to body tail as a whole with drive shaft (3), to be made
With.
6. being promoted after according to claim 1-5 and turning to central axle loading chassis, it is characterised in that: before described
The carrying air bag (6) of airsuspension system (1) and rear airsuspension system (4) can be controlled individually by central control system ECAS
System, realization headstock or the tailstock raise and reduce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811552216.3A CN109398018A (en) | 2018-12-19 | 2018-12-19 | It is promoted after one kind and turns to central axle loading chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811552216.3A CN109398018A (en) | 2018-12-19 | 2018-12-19 | It is promoted after one kind and turns to central axle loading chassis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109398018A true CN109398018A (en) | 2019-03-01 |
Family
ID=65460004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811552216.3A Pending CN109398018A (en) | 2018-12-19 | 2018-12-19 | It is promoted after one kind and turns to central axle loading chassis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109398018A (en) |
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| CN110641346A (en) * | 2019-10-21 | 2020-01-03 | 苏州万隆华宇物流有限公司 | Container transport vehicle |
| CN113815373A (en) * | 2021-08-31 | 2021-12-21 | 东风商用车有限公司 | Auxiliary control method and device for traction of double-rear-axle vehicle and electronic equipment |
| CN114905910A (en) * | 2022-06-21 | 2022-08-16 | 天津港第二集装箱码头有限公司 | Vehicle attitude balance system, method, device and storage medium |
| CN115257274A (en) * | 2022-08-01 | 2022-11-01 | 一汽解放汽车有限公司 | Rear suspension control system |
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| CN115257274A (en) * | 2022-08-01 | 2022-11-01 | 一汽解放汽车有限公司 | Rear suspension control system |
| CN115257274B (en) * | 2022-08-01 | 2024-07-09 | 一汽解放汽车有限公司 | Rear suspension control system |
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