CN110525152A - A kind of distributed-driving electric automobile wheel side integrated system - Google Patents
A kind of distributed-driving electric automobile wheel side integrated system Download PDFInfo
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- CN110525152A CN110525152A CN201910993551.5A CN201910993551A CN110525152A CN 110525152 A CN110525152 A CN 110525152A CN 201910993551 A CN201910993551 A CN 201910993551A CN 110525152 A CN110525152 A CN 110525152A
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- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 230000009467 reduction Effects 0.000 claims abstract description 26
- 239000000725 suspension Substances 0.000 claims abstract description 23
- 239000003381 stabilizer Substances 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000875 corresponding effect Effects 0.000 description 15
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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
- B60G15/02—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
- B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
- B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
- B60G21/055—Stabiliser bars
- B60G21/0551—Mounting means therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G3/00—Resilient suspensions for a single wheel
- B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
- B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/18—Steering knuckles; King pins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/20—Links, e.g. track rods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/40—Indexing codes relating to the wheels in the suspensions
- B60G2200/422—Driving wheels or live axles
-
- 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
- B60G2204/14—Mounting of suspension arms
- B60G2204/148—Mounting of suspension arms on the unsprung part of the vehicle, e.g. wheel knuckle or rigid axle
-
- 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
- B60G2800/16—Running
- B60G2800/162—Reducing road induced vibrations
-
- 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
- B60G2800/20—Stationary vehicle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Vehicle Body Suspensions (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The invention discloses a kind of distributed-driving electric automobile wheel side integrated systems, it is made of independent suspension mechanism, independent steering gear, power-driven mechanism and arrestment mechanism, in the independent suspension mechanism, one end of upper connecting rod assembly, intermediate swing arm assembly and lower link assembly is respectively hinged at knuckle assembly top, neutralizes bottom, upper connecting rod assembly, intermediate swing arm assembly and the lower link assembly other end are both connected on vehicle body, and stabilizer bar assembly and spring cushion assembly are both connected on intermediate swing arm assembly；In the independent steering gear, steering motor and worm type of reduction gearing are both connected on vehicle body, and pitman arm one end and worm gear shaft are connected, and track rod assembly both ends are hinged in the pitman arm other end and knuckle assembly；Central tie rod both ends are hinged in the middle part of the corresponding pitman arm of lateral direction of car two sides wheel, and locking hydraulic cylinder is axially mounted on central tie rod.The present invention can be realized the high stability and high maneuverability for taking into account vehicle.
Description
Technical field
The invention belongs to vehicle chassis technology fields, the distributed electrical motor-car suitable for four motorized wheels independent steering
, and in particular to a kind of distributed-driving electric automobile wheel side integrated system.
Background technique
As resource scarcity is constantly deepened and the development of motor-drive technique and battery technology with problem of environmental pollution,
At present electric vehicle have become the world's new-energy automobile development Main way, and in electric wheel drive arrangement form by
Gradually regard that one of the important directions that electric vehicle develops take turns internal driving electric compared to centralization driving electric car as by people
Power assembly is directly mounted in wheel by automobile, eliminates the components such as differential mechanism, semiaxis, has compact-sized, transmission efficiency height
Advantage；In addition, its each driving wheel torque is individually controllable, while cooperating independent steering system, except realization front-wheel steer and four-wheel
It turns to outer, additionally it is possible to complete pivot stud, the multiplicity driving mode such as cross running.It is instantly vehicle intellectualized to become research hotspot,
Drive arrangement form is also more attracted attention in electric wheel.
Although the electric vehicle driven in wheel has many advantages compared to orthodox car, there is also outstanding simultaneously
Problem.
First: the distributed driving electric vehicle Qbeak III of such as Denmark ECOmove company research and development, max. speed energy
Reach 120km/h, but it is limited by suspension frame structure in terms of steering, cannot achieve big steering angle；NASA (NASA)
Modular Robotic Vehicle (MRV) in patent US14/032470, has vehicle pivot stud and transverse shifting
Etc. functions, max. speed be only 64km/h.Therefore it can be seen that driving independent steering electric car in current wheel and cannot be considered in terms of height
Fast stability and high maneuverability.
The main reason for above problem be wheel, stub positional parameter and steering angle requirement that suspension is determined there is
Irreconcilable contradiction: on the one hand, current mature independent suspension form is all using connection stub lower link point and vehicle body two
The lower suspension arm structure of hinge joint, to optimize stress, lower swing arm should have certain subtended angle；On the other hand, for make to turn to it is light, braking
Stablize, mitigate tire eccentric wear, stub, which wears offset or dish of the place on lateral, should be as small as possible even negative value, then, it is desirable that main
Pin lower link point should be close to wheel side as much as possible.Above-mentioned two aspects factor makes wheel limited around stub rotational angle, In
Under the functional requirement of distributed-driving electric automobile high maneuverability, these mature independent suspension forms have been unable to satisfy to use and need
It asks.
Secondly: for example: the patent CN102883936A of patent JP2013103665A, JP5483729B2 and NTN company
Though the independent steering gear proposed is able to achieve different independent steering functional requirements, its steering mechanism, which is respectively mounted, is connected to vehicle
On wheel, that is, unsprung mass is belonged to, it is unfavorable that the arrangement of steering mechanism can all generate the ride comfort and control stability of vehicle
It influences.
In addition, traditional left and right wheels independent steering gear eliminates the mechanical connection of steering wheel and track rod, so,
When ability is lost the job in steering motor failure in side, left and right turn wheel can not be converted to mass motion by self-movement,
This will also substantially reduce driving safety.
Summary of the invention
For above-mentioned problems of the prior art, the present invention provides a kind of distributed-driving electric automobile wheel side collection
At system, makes to take turns interior driving independent steering electric car realization and take into account high stability and high maneuverability.In conjunction with Figure of description,
Technical scheme is as follows:
A kind of distributed-driving electric automobile wheel side integrated system, is separately mounted to the deflecting roller of distributed electric vehicle
It is interior, it is made of independent suspension mechanism, independent steering gear, power-driven mechanism and arrestment mechanism, the independent suspension mechanism packet
Knuckle assembly 3, upper connecting rod assembly 2, intermediate swing arm assembly 9, stabilizer bar assembly 16, lower link assembly 8 and spring is included to subtract
Shake device assembly 1；
Described 2 one end of upper connecting rod assembly is hinged on 3 top of knuckle assembly, and the other end is connected on vehicle body；
Described intermediate 9 one end of swing arm assembly is hinged on 3 middle part of knuckle assembly, and the other end is connected on vehicle body；
The stabilizer bar assembly 16 and spring cushion assembly 1 are connected between on swing arm assembly 9 respectively；
Described 9 one end of lower link assembly is hinged on 3 bottom of knuckle assembly, and 9 other end of lower link assembly is connected to vehicle body
On.
Further, the knuckle assembly 3 is made of connector 309 under connector 303 on knuckle and knuckle；
The top of connector 303 is fixed with bulb 301 on knuckle on knuckle, for connecting upper connecting rod assembly 2；
303 lower end of connector is fixed with knuckle intermediate with 309 connection of connector under knuckle on knuckle
First 311, for connecting intermediate swing arm assembly 9；
Cylindric mounting hole is provided under the knuckle in the middle part of connector 309, for installing power drive mechanism；
The lateral bulb 310 of knuckle is fixed on the outside of connector 309 under the knuckle, for connecting independent steering machine
The track rod assembly 14 of structure；
309 bottom of connector is fixed with bulb 306 under knuckle under the knuckle, for connecting lower link assembly 8；
The outside of connector 309 under the knuckle, and set close to the side of vehicle outside that there are two symmetrical above and below to turn
To section outer bolt hole 305, for connecting arrestment mechanism.
Further, the intermediate swing arm assembly 9 is by swing arm bar 901, swing arm bar ball cup 902, the first swing arm rod bearing
Mounting base 9031, the second swing arm rod bearing mounting base 9032, swing arm bar flexural pivot 904 and swing arm bar bolt 905 form；
The swing arm bar 901 is " A " type welding structure；
The swing arm bar ball cup 902 is fixed at 901 top of swing arm bar, and swing arm bar 901 passes through swing arm bar ball cup
902 is hinged with 3 middle part of knuckle assembly；
First swing arm rod bearing mounting base 9031 and the second swing arm rod bearing mounting base 9032 are respectively fixedly disposed at swing arm
901 tail portion both ends of bar, swing arm bar 901 pass through the first swing arm rod bearing mounting base 9031 and the second swing arm rod bearing mounting base respectively
9032 and corresponding rubber bushing or spherical plain bearing rod end be connected with vehicle body；
Swing arm bar flexural pivot 904 is located at 901 middle part of swing arm bar, and is fixedly mounted on swing arm bar 901 close to vehicle center side
The body of rod on, stabilizer bar assembly 16 is connected on swing arm bar 901 by swing arm bar flexural pivot 904；
Swing arm bar bolt 905 is arranged on the bracket of 901 middle part body of rod junction of swing arm bar, and spring cushion assembly 1 is logical
Overswing armed lever bolt 905 is mounted on swing arm bar 901.
Further, the independent steering gear includes that steering motor 11, worm type of reduction gearing 10, track rod are total
At 14, pitman arm 15, steering ball end 17, steering bearing seat 18, turn to support base 19, central tie rod 12 and locking hydraulic cylinder
13；
The steering motor 11 is connected on vehicle body by turning to support base 19；
The output shaft of the steering motor 11 is coaxially connected with the worm screw end of worm type of reduction gearing 10, and worm and gear slows down
The worm gear shaft end of device 10 is connected by bearing with steering bearing seat 18, and then is connected on vehicle body；
One end of pitman arm 15 and the worm gear shaft 1003 of worm type of reduction gearing 10 are connected, and steering ball end 17 is fixedly installed
In the other end of pitman arm 15, for being connected with 14 one end of track rod assembly, the other end of track rod assembly 14
It is hinged in knuckle assembly 3；
One end of central tie rod 12 is hinged on the middle part of pitman arm 15, and the other end of intermediate draw bar 12 is hinged on vehicle cross
To corresponding 15 middle part of pitman arm of other side wheel, locking hydraulic cylinder 13 is axially mounted on central tie rod 12.
Further, the power-driven mechanism includes driving motor 7, retarder 5 and shaft coupling 20；
The input shaft of the output shaft and retarder 5 of the driving motor 7 is coaxially connected, and driving motor 7 and retarder 5 are equal
It is mounted in knuckle assembly 3, the output end of retarder 5 is connected by shaft coupling 20 with wheel 4.
Further, the retarder 5 uses second level NGW planetary reduction gear.
Further, the arrestment mechanism uses spot-type disc brake, and the caliper 6 of the spot-type disc brake is fixed to be connected
It connects in knuckle assembly 3.
Compared with prior art, the beneficial effects of the present invention are:
1, the independent suspension mechanism of distributed-driving electric automobile wheel of the present invention side integrated system is simple and reliable for structure,
The high stability and high maneuverability that automobile can be taken into account, can guarantee suspension geometry kinematics characteristic, move suspension geometry
The dynamic change for learning parameter is met the requirements, while realizing 90 ° on the inside of wheel of the big steering angle of independence, is had and is connect with double wishbone suspension
Close variation tendency and range, it is very nearly the same with the correlated performance of double wishbone suspension vehicle.
2, the independent steering gear overwhelming majority of distributed-driving electric automobile wheel of the present invention side integrated system belongs to
Sprung mass, so as to improve the vertical performance and ride performance of automobile.
3, it is drawn in the independent steering gear of distributed-driving electric automobile wheel of the present invention side integrated system using rocker arm
Linkage cooperates hydraulic lockable mechanism, can not only control wheel steering angle by Active Control Method, improve control stability,
It can satisfy the demand of the requirement of automobile high maneuverability Yu a variety of steering patterns.
4, it is drawn in the independent steering gear of distributed-driving electric automobile wheel of the present invention side integrated system using rocker arm
Linkage cooperates hydraulic lockable mechanism to have electronic control system fail safe function, improves the peace of automobile in the process of moving
Quan Xing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of distributed-driving electric automobile wheel of the present invention side integrated system；
Fig. 2 is the structural representation of knuckle assembly in the integrated system of distributed-driving electric automobile wheel of the present invention side
Figure；
Fig. 3 is in the integrated system of distributed-driving electric automobile wheel of the present invention side, and the structure of intermediate swing arm assembly is shown
It is intended to；
Fig. 4 is the structural representation of upper connecting rod assembly in the integrated system of distributed-driving electric automobile wheel of the present invention side
Figure；
Fig. 5 is the structural representation of lower link assembly in the integrated system of distributed-driving electric automobile wheel of the present invention side
Figure；
Fig. 6 is the structure of track rod assembly in the integrated system of distributed-driving electric automobile wheel of the present invention side
Schematic diagram；
Fig. 7 is in the vehicle using distributed-driving electric automobile wheel of the present invention side integrated system, between left and right wheels
Independent steering gear attachment structure schematic diagram；
Fig. 8 is in the integrated system of distributed-driving electric automobile wheel of the present invention side, and worm type of reduction gearing structure is shown
It is intended to；
Fig. 9 is the worm gear of worm type of reduction gearing in the integrated system of distributed-driving electric automobile wheel of the present invention side
Worm screw cooperates schematic diagram；
Figure 10 is the knot of wheel power transmission mechanism in the integrated system of distributed-driving electric automobile wheel of the present invention side
Structure schematic diagram；
Figure 11 is in the integrated system of distributed-driving electric automobile wheel of the present invention side, second level NGW planetary reduction gear
Structural schematic diagram.
In figure:
1 spring cushion assembly, 2 upper connecting rod assemblies, 3 knuckle assemblies,
4 wheels, 5 retarders, 6 calipers,
7 driving motors, 8 lower link assemblies, 9 intermediate swing arm assemblies,
10 worm type of reduction gearing, 11 steering motors, 12 central tie rods,
13 locking hydraulic cylinders, 14 track rod assemblies, 15 pitman arms,
16 stabilizer bar assemblies；17 steering ball ends, 18 steering bearing seats,
19 turn to support base, 20 shaft couplings；
201 upper connecting rod bearing mounting bases, 202 upper connecting rods, 203 upper connecting rod ball cups；
Bulb on 301 knuckles, 302 first knuckle bolts, connector on 303 knuckles,
304 second knuckle bolts, 305 knuckle outer bolt holes, bulb under 306 knuckles,
307 third knuckle bolts, 308 knuckle inner bolt holes, connector under 309 knuckles,
The lateral bulb of 310 knuckles, 311 knuckles centre bulb；
5011 first order planet carriers, 5012 first order sun gears, 5013 first order planetary gears,
5014 first order ring gears, 5021 second level planet carriers, 5022 second level sun gears,
5023 second level planetary gears, 5024 second level ring gears；
801 lower link bearing mounting bases, 802 lower links, 803 lower link ball cups；
901 swing arm bars, 902 swing arm bar ball cups, 9,031 first swing arm rod bearing mounting bases,
9032 second swing arm rod bearing mounting bases, 904 swing arm bar flexural pivots, 905 swing arm bar bolts；
1001 worm screws, 1002 worm gears, 1003 worm gear shafts,
1004 fastening bolts；
1401 first tie-rod ball end seats, 1402 drag links, 1,403 second tie-rod ball end seats,
Specific embodiment
Clearly and completely to describe technical solution and its specific work process of the present invention, in conjunction with Figure of description, originally
The specific embodiment of invention is as follows:
As shown in Figure 1, the invention discloses a kind of distributed-driving electric automobile wheel side integrated system, the distributed drive
Dynamic electric car wheel side integrated system is by independent suspension mechanism, independent steering gear, power drive mechanism and arrestment mechanism group
At.Distributed-driving electric automobile wheel side integrated system correspondence is mounted at corresponding deflecting roller, present embodiment,
It is illustrated by taking the distributed-driving electric automobile wheel side integrated system of the corresponding installation of the near front wheel of vehicle as an example, needs to illustrate
It is that in the course of the description, " front, rear, left and right, inside and outside " that do not refer in particular to are " front, rear, left and right, inside and outside " of vehicle.
As shown in Figure 1, the independent suspension mechanism include: knuckle assembly 3, upper connecting rod assembly 2, intermediate swing arm assembly 9,
Stabilizer bar assembly 16, lower link assembly 8 and spring cushion assembly 1.Wherein, 2 one end of upper connecting rod assembly is hinged on steering
3 top of assembly is saved, 2 other end of upper connecting rod assembly is connected on vehicle body, and intermediate 9 one end of swing arm assembly is hinged on knuckle assembly 3
Middle part, intermediate 9 other end of swing arm assembly are both connected on vehicle body, and stabilizer bar assembly 16 and spring cushion assembly 1 are divided equally
It is not hinged on intermediate swing arm assembly 9, and stabilizer bar assembly 16 is located on the position of vehicle center side (among i.e.
The right back of swing arm assembly 9), described 9 one end of lower link assembly is hinged on 3 bottom of knuckle assembly, 9 other end of lower link assembly
It is connected on vehicle body.
As shown in Fig. 2, the knuckle assembly 3 is arranged vertically on the inside of wheel, by connector 303 on knuckle
It is formed with connector 309 under knuckle.Connector 303 is bent to vehicle interior side from bottom to top on the knuckle, to avoid vehicle
Wheel, avoids interfering；The top of connector 303 is fixedly connected on knuckle by the first knuckle bolt on knuckle
Bulb 301, for connecting upper connecting rod assembly；303 lower end of connector and 309 connection of connector under knuckle on knuckle
It is fixedly connected with a bulb support by two the second knuckle bolts 304, knuckle is fixedly installed in bulb support
Intermediate bulb 311, for connecting intermediate swing arm assembly；Cylindric mounting hole is provided under the knuckle in the middle part of connector 309,
A circle knuckle inner bolt holes 308 are along the circumferential direction uniformly provided with along upper in mounting hole, for installing power drive mechanism
In driving motor and retarder；309 outside of connector under the knuckle, and (i.e. close to a upper side of vehicle interior side
Connector back side top under knuckle) it is fixedly installed with the lateral bulb 310 of knuckle, for installing track rod assembly；In
309 bottom of connector is fixedly installed with bulb 306 under knuckle by third knuckle bolt 307 under the knuckle, is used for
Connect lower link assembly；The outside of connector 309 under the knuckle, and set close to the side of vehicle outside that there are two right up and down
The knuckle outer bolt hole 305 of title, for connecting caliper；
As shown in figure 4, the upper connecting rod assembly 2 is arranged horizontally at the inside top of knuckle assembly 3, You Shanglian
Bar 202, upper connecting rod bearing mounting base 201 and upper connecting rod ball cup 203 form.The fixation of upper connecting rod bearing mounting base 201 is set
It sets in 202 one end of upper connecting rod, upper connecting rod 202 passes through upper connecting rod bearing mounting base 201 and corresponding rubber bushing or rod end joint
Bearing is connected with vehicle body；Upper connecting rod ball cup 203 is fixed at 202 other end of upper connecting rod, and upper connecting rod 202 passes through upper connecting rod ball
Bulb 301 is hinged on the knuckle at 3 top of headstock 203 and knuckle assembly.
As shown in figure 3, intermediate swing arm assembly 9 is arranged horizontally at knuckle inside middle portion, by swing arm bar 901, pendulum
Armed lever ball cup 902, the first swing arm rod bearing mounting base 9031, the second swing arm rod bearing mounting base 9032, swing arm bar flexural pivot 904
It is formed with swing arm bar bolt 905.The swing arm bar 901 is " A " type welding structure；The swing arm bar ball cup 902 is fixedly installed
At 901 top of swing arm bar, bulb among the knuckle that swing arm bar 901 passes through 3 middle part of swing arm bar ball cup 902 and knuckle assembly
311 is hinged；First swing arm rod bearing mounting base 9031 and the second swing arm rod bearing mounting base 9032 are respectively fixedly disposed at swing arm
901 tail portion both ends of bar, swing arm bar 901 pass through the first swing arm rod bearing mounting base 9031 and the second swing arm rod bearing mounting base respectively
9032 and corresponding rubber bushing or spherical plain bearing rod end be connected with vehicle body；Swing arm bar flexural pivot 904 is located in swing arm bar 901
Portion, and swing arm bar 901 is fixedly mounted on the body of rod of vehicle center side, stabilizer bar assembly 16 passes through swing arm bar ball
Hinge 904 is connected on swing arm bar 901, as shown in Figure 1, one end of the stabilizer bar assembly 16 shown in figure is hinged on a vehicle left side
On the corresponding swing arm bar 901 of front-wheel, and the other end of not shown stabilizer bar assembly 16 is hinged on vehicle off-front wheel in figure
On corresponding swing arm bar 901, setting stabilizer bar assembly 16, which is realized, prevents vehicle roll；The setting of swing arm bar bolt 905 is being put
On the bracket of 901 middle part body of rod junction of armed lever, spring cushion assembly 1 is mounted on swing arm bar 901 by swing arm bar bolt 905
On, generation resonance is also avoided that while realizing vibration damping.
As shown in figure 5, the lower link assembly 8 is arranged horizontally at the bottom inside of knuckle assembly 3, You Xialian
Bar 802, lower link bearing mounting base 801 and lower link ball cup 803 form.The fixation of lower link bearing mounting base 801 is set
It sets in 802 one end of lower link, lower link 802 passes through lower link bearing mounting base 801 and corresponding rubber bushing or rod end joint
Bearing is connected with vehicle body；Lower link ball cup 803 is fixed at 802 other end of lower link, and lower link 802 passes through lower link ball
Bulb 306 is hinged under headstock 803 and the knuckle of 3 bottom of knuckle assembly.
As described above, the independent suspension mechanism is using double wishbone suspension as prototype, to the fork in original double wishbone suspension
Shape lower control arm is split, and limiting wheel is realized that a connecting rod of big steering angle is moved upward to higher point along stub position
It is conceded for wheel so that king pin lower link point only passes through a connecting rod with vehicle body and connect and turns to space, make deflecting roller in place
The limit steering angle to 90 ° on the inside of vehicle body can be obtained, realizes transverse shifting and pivot stud driving mode；By upper and lower connecting rod
Couple the upper and lower hinge joint of king pin and vehicle body, flexural pivot, upper and lower connecting rod and track rod limit jointly among knuckle
Whole freedom degrees of knuckle.Then, while realizing big steering angle, the variation of suspension geometry dynamic parameter is met the requirements,
Especially it is small to wear the offset or dish of place in a lateral direction for stub.In addition, the independent suspension is equipped with stabilizer bar, into one
Step ensure that the control stability of vehicle.And since the drive part of drive system in taking turns can in wheel steering and wheel hop
It can interfere, then by spring cushion and anti-sway bar link on the swing arm bar of intermediate swing arm, being the steering of wheel
Space is conceded with bounce.
As shown in figs. 1,7 and 8, the independent steering gear include: steering motor 11, worm type of reduction gearing 10,
Track rod assembly 14, steering ball end 17, steering bearing seat 18, turns to support base 19,12 and of central tie rod at pitman arm 15
Locking hydraulic cylinder 13.Wherein, steering motor 11 by turn to support base 19 be connected on vehicle body, the output shaft of steering motor 11 with
The worm screw end of worm type of reduction gearing 10 is coaxially connected, and the worm gear shaft end of worm type of reduction gearing 10 passes through bearing and steering bearing
Seat 18 is connected, to be connected on vehicle body, pitman arm 15 and the worm gear shaft 1003 of worm type of reduction gearing 10 are vertically arranged, and turns
It is connected on worm gear shaft 1003 to one end of rocker arm 15, steering ball end 17 is fixed at the other end of pitman arm 15, is used for
It is connected with 14 one end of track rod assembly, the other end of track rod assembly 14 is hinged in knuckle assembly 3, such as Fig. 7
Shown, one end of central tie rod 12 is hinged on the middle part of pitman arm 15, and the other end of intermediate draw bar 12 is hinged on laterally another
Side wheel (i.e. off-front wheel) takes turns corresponding 15 middle part of pitman arm of interior drive system, and locking hydraulic cylinder 13 is axially mounted to center
On pull rod 12.Under the drive of steering motor 11, power is transferred to pitman arm 15, pitman arm by worm type of reduction gearing 10
On the one hand 15 drive track rod assembly 14 to swing and stretch, and then pass through knuckle assembly 3 with motor car wheel 4 along pivot stud
Vehicular turn is realized in rotation, and 15 another aspect of pitman arm is another by central tie rod 12 and locking hydraulic cylinder 13 and lateral direction of car
The pitman arm 15 of side (i.e. off-front wheel side) is connected, when the corresponding electronic control of independent steering gear in vehicle single wheel
When system (not providing in figure) fails, the independent steering gear locking of lateral direction of car two sides is made vehicle still by locking hydraulic cylinder 13
Has steering capability.
As shown in Figure 8 and Figure 9, the worm type of reduction gearing 10 is mainly by worm screw 1001, worm gear 1002 and worm gear shaft
1003 compositions, worm screw 1001 and worm gear 1002 are respectively provided with inside the outer housing for being mounted on worm type of reduction gearing 10, worm and gear
The outer housing of retarder 10 is fixed by fastening bolt 1004, and the outer housing of worm type of reduction gearing 10 and steering support base 19
It is fixedly connected, the worm screw 1001 of worm type of reduction gearing 10 is coaxially connected with the output shaft of steering motor 11, and worm gear 1002 passes through
Spline is mounted on worm gear shaft 1003, and worm gear 1002 is meshed with worm screw 1001 realizes that power transmits, the shaft end of worm gear shaft 1003
It is connected by bearing with steering bearing seat 18, to be connected on vehicle body, worm gear shaft 1003 is also connected with 15 one end of pitman arm,
The steering force that steering motor 11 exports is transferred to pitman arm 15 by worm type of reduction gearing 10, and then total to track rod
At 14 transmitting.
As described above, in wheel of the present invention in the independent steering gear of drive system, using worm type of reduction gearing
10 as deceleration mechanism is turned to, and due to the characteristic of worm gear mechanism, worm gear 1002, which only needs to rotate half-turn, can realize wheel
Big steering angle, so that deceleration mechanism portable construction, it is quick to turn to moderating process.
As shown in fig. 6, the track rod assembly 14 is by the first tie-rod ball end seat 1401, drag link 1402 and second
Tie-rod ball end seat 1403 forms.First tie-rod ball end seat 1401 is fixed at one end of drag link 1402, drag link
1402 is hinged with steering ball end 17 by the first tie-rod ball end seat 1401, and the second tie-rod ball end seat 1403 is fixed at cross
The other end of pull rod 1402, drag link 1402 are hinged on the knuckle of knuckle assembly 3 by the second tie-rod ball end seat 1403
On lateral bulb 310, the steering force that diverted motor 11 exports successively is transmitted through worm type of reduction gearing 10 and pitman arm 15
To track rod assembly 14, and then knuckle assembly 3 is controlled by track rod assembly 14 and drives wheel steering, and to vehicle
It rotates to playing the role of assistant.
As described above, as shown in fig. 7, passing through central tie rod between the corresponding independent steering gear of lateral direction of car two sides wheel
12 are connected with locking hydraulic cylinder 13, and 12 both ends of central tie rod are hinged with pitman arm 15 respectively, light-duty 13 edge of locking hydraulic cylinder
It is axially mounted on central tie rod 12, the external hydraulic system (not shown) of the locking hydraulic cylinder 13, the hydraulic system packet
Include accumulator, solenoid valve and compensating cylinder etc..When the corresponding electronic control system of two wheel side of vehicle works normally, locking
The cylinder barrel and piston of hydraulic cylinder 13 are moved with the pitman arm 15 being correspondingly connected with, when the corresponding electronics of any single wheel of vehicle
Control system fail when, locking hydraulic cylinder 13 will be locked up so that the corresponding independent steering gear of vehicle other side wheel also by
Locking makes vehicle still have steering capability.When locking hydraulic cylinder 13 is not locked up, the independent steering gear is worked normally
When, meet Ackermam relationship；When locking hydraulic cylinder 13 is locked up, the independent steering gear still designs certain Ackermam and turns
To relationship, the resistance that flowing of the liquid in locking hydraulic cylinder 13 generates when being worked normally with reducing.
In addition, the independent steering gear is also equipped with fluid power system, assisted in automobile in-place steering, transverse shifting
The rotation of two sides wheel antiphase, to reduce the work load of independent steering gear.
As shown in Fig. 1 and Figure 10, the power drive mechanism includes: driving motor 7, retarder 5 and shaft coupling 20；Its
In, the input shaft of the output shaft and retarder 5 of the driving motor 7 is coaxially connected, and driving motor 7 is mounted on retarder 5
Under the knuckle of knuckle assembly 3 in 309 middle part mounting hole of connector, and pass through connector 309 under fastening bolt and knuckle
It is fixedly connected, the output end of retarder 5 is connected by shaft coupling 20 with wheel 4, realization power output to wheel 4, and then is driven
Wheel 4 rotates.
The driving motor 7 selects the DD5-10-15POW type high power density motor of AMK company production, weight
3.55kg；The design weight about 7.5kg of the retarder 5；Driving motor 7 and the weight of retarder 5 mitigate significantly, improve non-
Spring carried mass increases brought adverse effect.
As shown in figure 11, the retarder 5 uses second level NGW planetary reduction gear, and first order planetary gear is inside distributed with
Deceleration mechanism and second level planetary gear reducing mechanism；First order planetary gear reducing mechanism include first order planet carrier 5011,
First order sun gear 5012, first order planetary gear 5013 and first order ring gear 5014, second level planetary gear reducing mechanism packet
Include second level planet carrier 5021, second level sun gear 5022, second level planetary gear 5023 and second level ring gear 5024.Work as driving
When motor 7 brings into operation, first order sun gear 5012 is driven to rotate, and then first order planetary gear 5013 is driven to rotate, due to the
Level-one ring gear 5014 is fixed, therefore first order planet carrier 5011 makees output movement by driving, and first order planetary gear 5013 exists
It not only rotation but also having revolved on first order planet carrier 5011, power is inputted second level sun gear 5022 by first order planet carrier 5011,
The above-mentioned course of work is repeated, is connected by the splined shaft being arranged on second level planet carrier 5021 with shaft coupling 20, output driving power
Square is to wheel 4.
As shown in Figure 1, the arrestment mechanism uses spot-type disc brake, the caliper 6 of the spot-type disc brake passes through
Upper and lower two are bolted in the knuckle outer bolt hole 305 of connector 309 under the knuckle of knuckle assembly 3.
As described above, the power drive mechanism and the equal integrated installation of arrestment mechanism, in knuckle assembly 3, structure is integrated
Degree is higher, and reduces unsprung mass.
Claims (7)
1. a kind of distributed-driving electric automobile wheel side integrated system, is separately mounted in the deflecting roller of distributed electric vehicle,
It is made of independent suspension mechanism, independent steering gear, power-driven mechanism and arrestment mechanism, it is characterised in that:
The independent suspension mechanism includes knuckle assembly (3), upper connecting rod assembly (2), intermediate swing arm assembly (9), lateral stability
Bar assembly (16), lower link assembly (8) and spring cushion assembly (1)；
Described upper connecting rod assembly (2) one end is hinged at the top of knuckle assembly (3), and the other end is connected on vehicle body；
Described intermediate swing arm assembly (9) one end is hinged in the middle part of knuckle assembly (3), and the other end is connected on vehicle body；
The stabilizer bar assembly (16) and spring cushion assembly (1) are connected between respectively on swing arm assembly (9)；
Described lower link assembly (9) one end is hinged on knuckle assembly (3) bottom, and lower link assembly (9) other end is connected to vehicle
With.
2. a kind of distributed-driving electric automobile wheel side as described in claim 1 integrated system, it is characterised in that:
The knuckle assembly (3) is made of connector (309) under connector on knuckle (303) and knuckle；
Bulb on knuckle (301) are fixed at the top of connector (303) on knuckle, for connecting upper connecting rod assembly (2)；
Connector (303) lower end is fixed with knuckle intermediate with connector (309) connection under knuckle on knuckle
Head (311), for connecting intermediate swing arm assembly (9)；
Cylindric mounting hole is provided under the knuckle in the middle part of connector (309), for installing power drive mechanism；
It is fixed with the lateral bulb of knuckle (310) on the outside of connector (309) under the knuckle, for connecting independent steering machine
The track rod assembly (14) of structure；
Connector (309) bottom is fixed with bulb (306) under knuckle under the knuckle, for connecting lower link assembly
(8)；
Under the knuckle on the outside of connector (309), and set close to the side of vehicle outside that there are two steerings symmetrical above and below
It saves outer bolt hole (305), for connecting arrestment mechanism.
3. a kind of distributed-driving electric automobile wheel side as described in claim 1 integrated system, it is characterised in that:
The intermediate swing arm assembly (9) is by swing arm bar (901), swing arm bar ball cup (902), the first swing arm rod bearing mounting base
(9031), the second swing arm rod bearing mounting base (9032), swing arm bar flexural pivot (904) and swing arm bar bolt (905) composition；
The swing arm bar (901) is " A " type welding structure；
The swing arm bar ball cup (902) is fixed at the top of swing arm bar (901), and swing arm bar (901) passes through swing arm bar bulb
It is hinged in the middle part of seat (902) and knuckle assembly (3)；
First swing arm rod bearing mounting base (9031) and the second swing arm rod bearing mounting base (9032) are respectively fixedly disposed at swing arm
Bar (901) tail portion both ends, swing arm bar (901) pass through the first swing arm rod bearing mounting base (9031) and the second swing arm rod bearing respectively
Mounting base (9032) and corresponding rubber bushing or spherical plain bearing rod end are connected with vehicle body；
Swing arm bar flexural pivot (904) is located in the middle part of swing arm bar (901), and is fixedly mounted on swing arm bar (901) close to vehicle center one
On the body of rod of side, stabilizer bar assembly (16) is connected on swing arm bar (901) by swing arm bar flexural pivot (904)；
Swing arm bar bolt (905) setting is on the bracket of swing arm bar (901) middle part body of rod junction, spring cushion assembly (1)
It is mounted on swing arm bar (901) by swing arm bar bolt (905).
4. a kind of distributed-driving electric automobile wheel side as described in claim 1 integrated system, it is characterised in that:
The independent steering gear includes steering motor (11), worm type of reduction gearing (10), track rod assembly (14), turns
It is hydraulic to rocker arm (15), steering ball end (17), steering bearing seat (18), steering support base (19), central tie rod (12) and locking
Cylinder (13)；
The steering motor (11) is connected on vehicle body by turning to support base (19)；
The worm screw end of the output shaft and worm type of reduction gearing (10) of the steering motor (11) is coaxially connected, and worm and gear slows down
The worm gear shaft end of device (10) is connected by bearing with steering bearing seat (18), and then is connected on vehicle body；
One end of pitman arm (15) and the worm gear shaft (1003) of worm type of reduction gearing (10) are connected, and steering ball end (17) is fixed
The other end in pitman arm (15) is set, for being connected with track rod assembly (14) one end, track rod assembly
(14) the other end is hinged on knuckle assembly (3)；
One end of central tie rod (12) is hinged on the middle part of pitman arm (15), and the other end of intermediate draw bar (12) is hinged on vehicle
In the middle part of the corresponding pitman arm (15) of lateral other side wheel, locking hydraulic cylinder (13) is axially mounted to central tie rod (12)
On.
5. a kind of distributed-driving electric automobile wheel side as described in claim 1 integrated system, it is characterised in that:
The power-driven mechanism includes driving motor (7), retarder (5) and shaft coupling (20)；
The input shaft of the output shaft and retarder (5) of the driving motor (7) is coaxially connected, and driving motor (7) and retarder
(5) it is installed on knuckle assembly (3), the output end of retarder (5) is connected by shaft coupling (20) with wheel (4).
6. a kind of distributed-driving electric automobile wheel side as claimed in claim 5 integrated system, it is characterised in that:
The retarder (5) uses second level NGW planetary reduction gear.
7. a kind of distributed-driving electric automobile wheel side as described in claim 1 integrated system, it is characterised in that:
The arrestment mechanism uses spot-type disc brake, and the caliper (6) of the spot-type disc brake is fixedly connected on knuckle
On assembly (3).
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|---|---|---|---|
| CN201910993551.5A CN110525152B (en) | 2019-10-18 | 2019-10-18 | Distributed driving electric automobile wheel integrated system |
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|---|---|---|---|
| CN201910993551.5A CN110525152B (en) | 2019-10-18 | 2019-10-18 | Distributed driving electric automobile wheel integrated system |
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| CN110525152B CN110525152B (en) | 2024-09-24 |
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| CN111976678A (en) * | 2020-07-06 | 2020-11-24 | 武汉船用机械有限责任公司 | Hydraulic brake device |
| CN113232469A (en) * | 2021-06-24 | 2021-08-10 | 中国第一汽车股份有限公司 | Front suspension system and vehicle |
| CN113386509A (en) * | 2021-07-13 | 2021-09-14 | 上海崟冠智能科技有限公司 | Vehicle active suspension system |
| CN114104026A (en) * | 2020-08-31 | 2022-03-01 | 湖南中车智行科技有限公司 | Intelligent rail tram low-floor rubber wheel bogie based on wheel-side motor |
| WO2022134087A1 (en) * | 2020-12-25 | 2022-06-30 | 华为技术有限公司 | Suspension structure, angle module system and motor vehicle |
| CN115157948A (en) * | 2022-06-15 | 2022-10-11 | 北京理工大学 | Modular integrated suspension system |
| CN115635811A (en) * | 2022-10-27 | 2023-01-24 | 重庆长安汽车股份有限公司 | Independent suspension behind car, mounting structure and vehicle |
| CN116443093A (en) * | 2023-06-12 | 2023-07-18 | 华侨大学 | In-situ steering and rotating system of integrated frame full-electric wheel type engineering machinery |
| CN116512896A (en) * | 2023-07-03 | 2023-08-01 | 北京航空航天大学 | Distributed independent wheel drive-by-wire angle driving system of electric automobile |
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| CN116443093B (en) * | 2023-06-12 | 2023-09-05 | 华侨大学 | In-situ steering and rotating system of integrated frame full-electric wheel type engineering machinery |
| CN116512896A (en) * | 2023-07-03 | 2023-08-01 | 北京航空航天大学 | Distributed independent wheel drive-by-wire angle driving system of electric automobile |
| CN116512896B (en) * | 2023-07-03 | 2023-09-08 | 北京航空航天大学 | Distributed independent wheel drive-by-wire angle driving system of electric automobile |
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