CN105090433B - A kind of high-performing car differential control system - Google Patents
A kind of high-performing car differential control system Download PDFInfo
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- CN105090433B CN105090433B CN201510607629.7A CN201510607629A CN105090433B CN 105090433 B CN105090433 B CN 105090433B CN 201510607629 A CN201510607629 A CN 201510607629A CN 105090433 B CN105090433 B CN 105090433B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/12—Differential gearings without gears having orbital motion
- F16H48/18—Differential gearings without gears having orbital motion with fluid gearing
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Abstract
The present invention relates to a kind of high-performing car differential control system, include differential mechanism, the differential mechanism is additionally provided with fuel reserve tank, gear hydraulic pump is respectively equipped with differential mechanism both sides, the gear hydraulic pump is made up of two intermeshing turning gears, one of the turning gear connects with the output revolving shaft of automotive wheels rotating shaft and differential mechanism, one of two and turning gear of turning gear engaged transmission；Two circulation main channels are provided between the both sides gear hydraulic pump, the thin passage of circulation is respectively equipped with the gear hydraulic pump of both sides；Connect on fuel reserve tank provided with two connecting tubes with circulation main channel, the connecting tube one is acted on is delivered to gear hydraulic pump by fuel reserve tank liquid；Liquid is stored by fuel reserve tank, connecting tube, circulation main channel and the thin passage of circulation convey liquid to formation between the gear hydraulic pump of differential mechanism both sides and be recycled flowing, and then the control system of the differential mechanism power of control differential mechanism formation.The present invention can effectively improve the stability of differential mechanism, and using effect is more preferably.
Description
Technical field
The invention belongs to automobile construction technical field, and in particular to a kind of automobile differential control system.
Background technology
Differential mechanism is that engine is connected to both sides tire as its name suggests, and can separately both sides tire freely each spinning,.Mesh
The driving wheel of both sides is constituted on the general gear and gear on tyre revolution moving axis of preceding differential mechanism, therefore, when one of them side
Tire (wheel) loses resistance, and during the increase of another side tire (wheel) resistance, forms one side wheel spin, and another sidecar wheel is then
Completely motionless, car is by static to movement, and required power, referred to herein as " required torsion ", (AWD) major part car are to utilize system
Dynamic device prevents rotated tire, is slowed or stopped, to reach that both sides tire, when the resistance on ground is equal, can turn together
Dynamic, this method is to utilize friction, the resistance of generation, to reach the purpose of opposing tire stop racing.Its control relies primarily on electronics
System drive brake or with mechanical action slow down with stop dally, two classes be all spy out after tire unusual fluctuation prevent, thus, make
Differential controls performance is unstable, is easily influenceed by the damage of mechanically or electrically subsystem.Current typical case's differential mechanism has as
Five or six gears, this gear is used to distribute two wheel speeds, when rotating speed difference of garage when on road needed for two-wheeled.Differential mechanism root
According to the resistance suffered by tire, with frictional ground force and distribute, when the increase of one side tire resistance, when another side frictional force reduces, example
Such as in snowfield or wet and slippery ground, automobile can not advance, and one side tire will not be rotated, and another side is then dallied, and thus be controlled
It is unstable.
The content of the invention
The purpose of the present invention is, has above-mentioned weak point in order to solve existing differential mechanism there is provided a kind of high-performance vapour
Car differential control system.
A kind of high-performing car differential control system, includes differential mechanism, and the differential mechanism is additionally provided with fuel reserve tank, in differential
Device both sides are respectively equipped with gear hydraulic pump, and the gear hydraulic pump is made up of two intermeshing turning gears, one of the turning gear
Connect with the output revolving shaft of automotive wheels rotating shaft and differential mechanism, one of two and turning gear of turning gear engaged transmission；The both sides tooth
Two circulation main channels are provided between wheel hydraulic pump, the circulation main channel acts on liquid and followed between the gear hydraulic pump of both sides
Circulation is moved, and the thin passage of circulation is respectively equipped with the gear hydraulic pump of both sides, and the thin passage of the circulation makes liquid in gear hydraulic pump
Circulated by importing and exporting, balanced hydraulic value when the gear hydraulic pump for acting on both sides produces hydraulic pressure difference；Set on fuel reserve tank
There are two connecting tubes to connect with circulation main channel, the connecting tube one is acted on is delivered to gear hydraulic by fuel reserve tank liquid or gas
Pump, connecting tube two is acted in recovery gear hydraulic pump in liquid to fuel reserve tank；By above-mentioned fuel reserve tank store liquid, connecting tube,
Circulate main channel and circulate thin passage and convey liquid to the recyclable flowing of formation between the gear hydraulic pump of differential mechanism both sides, and then
Control the distribution system of the differential mechanism power of differential mechanism formation.
Above-mentioned differential mechanism is located in automobile Qian Catching-rabbits drivings, rearmounted driving or front and rear four-wheel drive.
Two above-mentioned connecting tubes are connected by a reversing solenoid valve with circulation main channel；In circulation main channel and hydraulic pump
An adjusting means is provided with, the adjusting means includes the exhaust outlet for being external in engine, and the adjusting means acts on discharge tooth
The gas in hydraulic pump is taken turns, smooth be delivered in gear hydraulic pump of liquid is formed without being circulated under gaseous state.
Above-mentioned circulation main channel is two interconnections in the defeated of the liquid entrance of differential mechanism both sides gear hydraulic pump
Liquid pipe, the thin passage of circulation is connected in gear hydraulic pump in parallel and imports and exports and circulate on main channel.
The above-mentioned thin passage of circulation is oil pipe, the through hole in gear hydraulic pump case or gear hydraulic pump case and turning gear
Gap constitute, the thin passage two ends of the circulation are connected to the import and export of gear hydraulic pump, and the import and export are located at gear hydraulic
Position between two turning gears of pump.
Above-mentioned reversing solenoid valve includes shell, magnet, return spring and commutation guide block, the magnet, return spring
It is located at commutation guide block in shell, magnet is located at below return spring or in return spring, commutation guide block is located on return spring
Side, the commutation guide block and shell inner cavity are fitted close, and commutation guide block is acted in shell inner cavity by magnet and return spring
Up and down formula structure is formed, provided with four connectors on shell, commutation guide block is provided with two interface channels, and two connections are logical
Road docks to form passage one and passage two with connector, and the passage one is that liquid or gas are defeated by circulating main channel by fuel reserve tank
The commutation passage of gear hydraulic pump is delivered to, passage two is recycled to fuel reserve tank by circulating main channel for liquid from gear hydraulic pump
Commutate passage；Two commutation passage openings are realized by up and down misplaced with shell of commutation guide block.
A single-way switch is provided with above-mentioned fuel reserve tank at input port, fuel reserve tank side is provided with delivery outlet, the equipped at outlet port
One electromagnetic valve switch is installed.
Above-mentioned single-way switch is made up of diaphragm seal and adjustable spring, and the diaphragm seal is fixed on fuel reserve tank by a movable axis
Equipped at outlet port, adjustable spring is located under diaphragm seal and is fixed on fuel reserve tank, diaphragm seal by the movable axis as levers support point and
The contractility formation open seals performance of adjustable spring.
Above-mentioned single-way switch switchs for a mechanical action, and magnetic valve is an electric-controlled switch.
The thin channel capacity size of above-mentioned circulation is equal to differential mechanism both sides gear hydraulic pump maximum liquid at normal road surface
Residual quantity is flowed, further, thin channel capacity size is circulated and is equal to differential mechanism both sides gear hydraulic pump in car on normal road surface
Liquid flow moment amount during traveling.
Above-mentioned adjusting means includes a housing, lever arm ball-cock assembly and magnetic force control, and described exhaust outlet is located at
On housing, the lever arm ball-cock assembly is located at below exhaust outlet；Described magnetic force control is located above lever arm ball-cock assembly, the magnetic
Force controller is controlled provided with a microswitch, and the microswitch is located at below lever arm ball-cock assembly, and the microswitch passes through activity
The up and down of arm ball-cock assembly realizes the working condition that opening is controlled magnetic force control；Described lever arm ball-cock assembly
Attract lever arm ball-cock assembly locked upwards by opening magnetic force control and realizing, make lever arm ball-cock assembly and exhaust outlet formation opening and closing
It is sealed to coordinate.
Above-mentioned magnetic force control is an electromagnetic valve switch.
Beneficial effects of the present invention：
1st, the present invention is followed by being respectively equipped with to be provided between gear hydraulic pump, the gear hydraulic pump of both sides in differential mechanism both sides
Ring main channel, is additionally provided with the thin passage of circulation on each gear hydraulic pump of both sides, thus, when automobile is dynamic, is driven by differential mechanism
There is the gear hydraulic pump of liquid, the torsion of gear hydraulic pump distribution differential mechanism is controlled automobile tire rotary shaft, thus, can had
The stability of the raising differential mechanism of effect.
2nd, the gear hydraulic pump of both sides of the present invention is distributed provided with thin passage, effective balance both sides gear hydraulic pump is circulated
Power can further improve the stability of control in the controling power of both sides tire, and comfort level is higher.
3rd, fuel reserve tank input port of the invention is controlled by a single-way switch, and delivery outlet is by-electromagnetic valve switch control, in storage
Fuel tank connects provided with two connecting tubes with circulation main channel, main logical provided with a reversing solenoid valve and circulation in two connecting tubes
Road connects, and is provided with an adjusting means on hydraulic pump, thus can effectively strengthen the transportation performance of each conveying liquid line, so that
The control performance of wheel is improved, operation is more stablized, and further improves the performance of differential mechanism.
Brief description of the drawings
Differential mechanism, gear hydraulic pump structural representations of the Fig. 1 for the present invention.
Fig. 2 is that the gear hydraulic pump of the present invention and the liquid of circulation main channel are mutually driven schematic diagram.
Fig. 3 is the differential mechanism of the present invention, the liquid separation schematic diagram of gear hydraulic pump.
Fig. 4 is the gear hydraulic pump of the present invention, circulation main channel and the structural representation for circulating thin passage.
Fig. 5 is back to the working state schematic representation of fuel reserve tank for the liquid of the present invention by the gear hydraulic pump of both sides.
Fig. 6 is reversing solenoid valve control oil circuit working state schematic representation in Fig. 5.
Fig. 7 is exported to the working state schematic representation in the gear hydraulic pump of both sides for the liquid of the present invention by fuel reserve tank.
Fig. 8 is reversing solenoid valve control oil circuit working state schematic representation in Fig. 7.
Fig. 9 is the working state schematic representation that fluid present invention is circulated in both sides gear hydraulic pump.
Figure 10 is reversing solenoid valve control oil circuit working state schematic representation in Fig. 9.
Figure 11 is the working state schematic representation that gear hydraulic pump liquid of the present invention controls single-end.
Figure 12 is the structural representation of gear hydraulic pump adjusting means of the present invention.
Figure 13 is the structural representation of the fuel reserve tank, single-way switch and electromagnetic valve switch of the present invention.
Figure 14 and Figure 15 is structural representation of the invention.
Embodiment
Referring to figs. 1 to a kind of high-performing car differential control system shown in Figure 15, include differential mechanism 1, the differential mechanism 1
Fuel reserve tank 2 is additionally provided with, gear hydraulic pump 4 is respectively equipped with the both sides of differential mechanism 1, the gear hydraulic pump 4 is intermeshing by two
Turning gear 41 is constituted, and one of turning gear 411 connects with the output revolving shaft 5 of automotive wheels rotating shaft 3 and differential mechanism 1, and the two of turning gear
411 engaged transmissions of one of 412 and turning gear；Two circulation main channels 6 are provided between the both sides gear hydraulic pump 4, this is followed
Ring main channel 6 acts on liquid and circulated between both sides gear hydraulic pump 4, is set respectively on both sides gear hydraulic pump 4
There is the thin passage 7 of circulation, the thin passage 7 of the circulation makes liquid in gear hydraulic pump 4 be circulated by importing and exporting, acts on both sides
Balanced hydraulic value when gear hydraulic pump 4 produces hydraulic pressure difference；Connect on fuel reserve tank 2 provided with two connecting tubes with circulation main channel 6,
The connecting tube 1 is acted on is delivered to gear hydraulic pump 4 by the liquid of fuel reserve tank 2, and connecting tube 2 82 acts on recovery gear hydraulic
In pump 4 in liquid to fuel reserve tank 2；
Liquid is stored by above-mentioned fuel reserve tank 2, connecting tube, circulation main channel 6 and the thin passage 7 of circulation convey liquid to differential mechanism
Recyclable flowing is formed between the gear hydraulic pump 4 of 1 both sides, and then controls the differential mechanism power distribution system of the formation of differential mechanism 1.
Further：
Described differential mechanism 1 is located in automobile Qian Catching-rabbits drivings, rearmounted driving or front and rear four-wheel drive.
Two described connecting tubes are connected by a reversing solenoid valve 9 with circulation main channel 6；Led on hydraulic pump with circulation
Passage 6 is provided with an adjusting means 11, and the adjusting means 11 includes the exhaust outlet 10 for being external in engine, and the adjusting means 11 is made
For discharging the gas in gear hydraulic pump 4, when liquid enters gear hydraulic pump by fuel reserve tank, make liquid is smooth to be delivered to tooth
Formed in wheel hydraulic pump 4 in gear hydraulic pump 4 without being circulated under gas.
Described circulation main channel 6 is two interconnections in the liquid entrance of the both sides gear hydraulic pump 4 of differential mechanism 1
Woven hose, specifically as described in Figure 2, the input port of a circulation main channel 6 connection left side gear hydraulic pump 4, the other end are connected to
The delivery outlet of the gear hydraulic pump 4 on another right side, the delivery outlet of another circulation main channel 6 connection left side gear hydraulic pump 4 is another
End is connected to the input port of the gear hydraulic pump 4 on right side, two circulation main channels 6 is formed the interstitial fluid of both sides gear hydraulic pump 4
Body circulation passage.The thin passage 7 of circulation is connected on the circulation main channel 6 of the import and export of gear hydraulic pump 4, the thin passage of the circulation
7 are constituted for the gap of oil pipe, the through hole in the housing of gear hydraulic pump 4 or the housing of gear hydraulic pump 4 and turning gear 41, specifically
Say, the thin passage 7 of the circulation there can be external oil pipe to constitute, the through hole that can be also set in the housing of gear hydraulic pump 4 is constituted, also
It can be made up of the gap of the housing of gear hydraulic pump 4 and turning gear 41.The thin two ends of passage 7 of described circulation are connected to gear
The import and export of hydraulic pump 4, the import and export are located at position between two turning gears 41 of gear hydraulic pump 4, circulate the thin flow of passage 7
Size is equal to the both sides gear hydraulic pump 4 of differential mechanism 1 maximum liquid flow moment amount at normal road surface.
Described reversing solenoid valve 9 includes shell 91, magnet 92, return spring 93 and commutation guide block 94, the magnet
92nd, return spring 93 and commutation guide block 94 are located in shell 9, and magnet 92 is located in the lower section of return spring 93 or return spring 93,
The guide block 94 that commutates is located at the top of return spring 93, and the commutation guide block 94 is fitted close with the inner chamber of shell 91, and commutation guide block 94 passes through
Magnet 92 and acting on for return spring 93 form up and down formula structure in shell inner cavity 95, provided with four companies on shell 91
Joint (specifically, the connector is the connection through hole on shell 91), commutate guide block 94) provided with two interface channels, two
Interface channel forms passage 1 and passage 2 95 with connector (being connected through hole) docking.Magnet 92 and storage when commutation guide block 94
Magnetic valve 123 liang of electric components in fuel tank both sides are all in no power, by the active force of return spring, and one of passage 95 is gear
Hydraulic pump is by liquids recovery to the half-duplex channel in fuel reserve tank 2, while passage 2 96 is fuel reserve tank passes through connecting tube one by gas
81 enter the commutation passage of gear hydraulic pump；When after the commutation no power of guide block magnetic valve 9, but the energization of fuel reserve tank magnetic valve 123, lead to
Road 1 prevents liquid from being back to gear hydraulic pump because there is style one-way flow valve, and liquid is opened by magnetic valve 123 in fuel reserve tank
Open and be back to by connecting tube 1 and passage 2 96 in gear hydraulic pump 4；Will when the Wei Catching-rabbits of guide block 94 that commutate are in energization Wei Catching-rabbits
Closing passage 1, passage 2 95 will circulate the direct of main channel as liquid between the gear hydraulic pump of differential mechanism both sides two
Passage, the passages 1 of described two reversing solenoid valves, the gear pump direct channel opening of passage 2 96 and two are by commutating
Is realized in the up and down through hole dislocation with shell 91 of guide block
Provided with-single-way switch 12 at described 2 times input ports of fuel reserve tank, the side of fuel reserve tank 2 is provided with delivery outlet 22, and this is defeated
Exit is provided with a magnetic valve 123.Described single-way switch 12 switchs for mechanical action, and the single-way switch 12 is by diaphragm seal
121 and adjustable spring 122 constitute controlling switch, described diaphragm seal 121 is fixed on the delivery outlet of fuel reserve tank 2 by a movable axis 13
At 21, adjustable spring 122 is located under diaphragm seal 121 and is fixed on fuel reserve tank 2, and diaphragm seal 121 is by the work as levers support point
The contractility formation open seals performance of moving axis 13 and adjustable spring 122, fuel reserve tank side delivery outlet 22；Delivery outlet 22 is by a connection
Being constituted in the efferent duct of connecting tube 1, the efferent duct is provided with magnetic valve 123, magnetic valve 123 is-individual control fuel reserve tank output
The electric-controlled switch of oil circuit, hydraulic pump is flowed back to during opening by liquid in fuel reserve tank.
Described adjusting means 11 includes a housing 111, lever arm ball-cock assembly 112 and magnetic force control 113, the magnetic force
Controller 113 is an electromagnetic valve switch.Described exhaust outlet 10 is located on housing 111, and the lever arm ball-cock assembly 112 is located at exhaust
The lower section of mouth 10；Described magnetic force control 113 is located at the top of lever arm ball-cock assembly 112, and the magnetic force control 113 is miniature provided with one
Switch 114 is controlled, and the microswitch 114 is located at the lower section of lever arm ball-cock assembly 112, and the microswitch 114 passes through lever arm ball float
The up and down of valve 112 realizes the working condition that opening is controlled magnetic force control 113；Described lever arm ball-cock assembly
112 attract lever arm ball-cock assembly 112 locked upwards by opening magnetic force control 113 and realizing, make lever arm ball-cock assembly 112 and row
The formation opening and closing of gas port 10 are sealed to be coordinated.
In order to make it easy to understand, the following operation principle to the present invention is described in further detail.
The gear hydraulic pump 4 of the differential mechanism left and right sides of the present invention, surmounts institute as measuring and limiting both sides tire and have
Rotating speed difference is needed, as shown in Figure 1.
One end of main channel 6 and one is circulated mutually by circulating the interconnection of main channel 6 in the gateway of both sides gear hydraulic pump 4
The outlet of gear hydraulic pump 4 position connects, and the other end connects with another entrance of gear hydraulic pump 4 position, and both sides oil pressure pump alter-parallel exists
Therefore, together, the gear hydraulic pump 4 of both sides can simultaneously rotate together, but cannot individually or have under speed difference rotate, general
Two tires are locked together, and both sides can not individually rotate, as shown in Figure 2.
Differential mechanism of the present invention is preventing wheel spin, is to be not pressurised the principle that power changes and changes volume using liquid,
Prevent wheel spin.The present invention high-performing car differential mechanism by increasing by two gear hydraulic pumps 4 respectively in differential mechanism both sides,
The 2W D differential mechanisms of nine teeth are formed, any single wheel is unable to idle running, rather than is just prevented after wheel spin.Nine
Tooth 2W D differential mechanisms do not have clutch, are by the tooth of both sides when nine tooth 2W D differential mechanisms are located away from into system also without brake
Take turns hydraulic pump internal fluid passages to change into fuel reserve tank 2, be led to that the inside of gear hydraulic pump 4 is transmitted mutually without enough liquid
Kinetic energy is lost, saves four gears idle running in fuel oil, gear hydraulic pump 4, the work of two-wheeled is no longer supervised and limit, by two gear liquids
Press pump 4 and differential mechanism are kept completely separate, without mechanical clutch and brake, while will not be guided to because of system failure out of control
Falsely charge in risk.
In the height of itself of gear hydraulic pump 4, (low-pressure chamber is located at two rotations of gear hydraulic pump 4 to import and export to low-pressure chamber
Position between tooth 41) add one circulation of import and export position connection at the thin passage 7 of circulation, i.e. gear hydraulic pump position about 4 carefully
Passage 7, make gear hydraulic pump 4 can individually limited rotation, by the liquid produced by rotary speed and energy difference
Volume N, send and return low-pressure chamber.The definition of the thin passage 7 of the circulation:Be can only car when turning to liquid difference volume N it is small
Quantity of fluid passes through, and can not all pass through Noff (liquid difference) total amount, and the passage that liquid and kinetic energy are fed back, can follow
The gap of the thin passage 7 of ring or gear and gear wall, as shown in Figure 4.
Change liquid flow direction with reversing solenoid valve 9, as shown in Fig. 5 to Figure 10.It is automatic to meet " fuel-efficient shelves " or " more have
Effect control shelves ", are adapted to walk in good road surface or the improper road surface such as wet and slippery.Fuel-efficient shelves (D is used during good road surface
drive over-drive on)；Improper road surface is using effectively control shelves (D drive over-drive off).
When gear is in fuel-efficient shelves (over-drive on) D drive, two gear hydraulic pumps 4, reversing solenoid valve 9 and storage
Fuel tank 2 is chained together by circulating main channel 6, by the return of commutation guide block 94 of reversing solenoid valve 9, passage 1 and passage two
96 open, i.e., liquid circulation main channel 6 in through commutate guide block 94 passage 1 and by the automatic pump of connecting tube 2 82 to
Fuel reserve tank 2, now the single-way switch 12 at 2 times input ports of fuel reserve tank open, allow liquid enter, prevent liquid flow back to hydraulic pressure
Pump, gear idle running is returned to general unrestricted state.Now, electromagnetic valve switch closes delivery outlet 22, stop liquid output.Such as
Shown in Fig. 5 and Fig. 6.
When gear fuel-efficient shelves (over-drive on) be transferred to control shelves (over drive off) when fuel reserve tank 2
(liquid storage tank solenoid valve) magnetic valve 123 is opened, and adapter 81 and passage 2 96 times are crossed in liquid footpath
Flow in gear hydraulic pump 4, i.e., single-way switch 12 is closed, forbid liquid to be back to hydraulic pump 4, electromagnetic valve switch opens fuel reserve tank
Delivery outlet 22, liquid circulation main channel 6 in through commutate guide block 9 passage 2 96 and pass through the automatic transport of connecting tube 1 to two
In gear hydraulic pump 4, as shown in Figure 7 and Figure 8.When injecting liquid, gas is discharged from steam vent 10 in gear hydraulic pump 4, with
The floating of swing arm ball-cock assembly 112 rises if liquid injection rate rises the adjusting means 11 progressively made on gear hydraulic pump 4, when filling
Touch adjusting means 111 microswitch 114 by exhaust outlet 10 close with it is locked, when both sides Tiao Jie Zhuan Catching-rabbits 111 simultaneously fill after,
Circuit will turn on the return of commutation guide block 94 of magnetic valve 9, and passage 1 will close and passage 2 95 by two gear hydraulic pumps 4
Outlet and entrance alter-parallel, passage 2 95 will become circulation canal and close all external gateways.
When gear is in effectively control shelves (over-drive off), reversing solenoid valve 9 changes liquid flow line, two teeth
The liquid circulation deferent 6 and fuel reserve tank 2 for taking turns hydraulic pump 4 are kept completely separate, and now, the commutation guide block 94 of reversing solenoid valve 9 is by magnet
92 attraction is descending, and guide block 94 changes liquid flowing, closing liquid turnover entrance (i.e. passage 1 and passage 2 95 and shell
The dislocation of 91 through holes is closed), forbid continuing to inject liquid, liquid is formed between two gear hydraulic pumps 4 of differential mechanism both sides
Cross-circulation is flowed, and both sides tire is locked together, it is to avoid skidded, as shown in Figure 10.It is specific as follows：
When car is in parking position switch, all electromagnetic valve electric currents are closed, by return in the presence of return spring, and commutate guide block 9
Bounce back into normal condition, liquid waits next instruction in gear hydraulic pump 4, series connection is together or alter-parallel.
When car is transferred to drive grades of D (traveling shelves) by parking position switch, liquid has been present in gear hydraulic pump 4, when car to
Preceding movement, gear is by liquid pump from gear hydraulic pump 4 to fuel reserve tank 2.
As D, drive grades are transferred to over drive off (i.e. two-wheel drive), and over drive are opened and connected fuel reserve tank 2
Electromagnetic valve switch, liquid is injected back into gear hydraulic pump 4, when the liquid of one side gear hydraulic pump 4 is filled, adjusting means 11 it is miniature
Switch 114 is floated by lever arm ball-cock assembly 112 connects the power supply of magnetic force control 113, by the switch lock of lever arm ball-cock assembly 112
Extremely, until the same principle of another side adjusting means 11 is locked, reversing solenoid valve (9) circuit is connected, and makes two gear hydraulics
The formation of pump 4 intersects mutual connection parallel connection, and closes all exports abroad, and liquid cross-circulation transmission, two-wheeled can only be rotated consistent or had
Slight difference, two wheels can walk in normal or improper road surface.
2WD differential mechanisms of the present invention set the gear hydraulic pump 4 being made up of two gears in original differential mechanism both sides.Form one
The differential mechanism that individual control can be walked on normal or improper road surface, but both sides gear hydraulic pump 4 is not as just liquid
The effect of transmission, while limiting the both sides speed difference of differential mechanism, thus, makes the speed difference of two-wheeled be restricted within setting, can
Walked with without prejudice on normal road surface, can also be not in that one side tire does not turn at improper road surface, while the feelings of idle running
Condition, traveling more performance is more comfortably, stably.
When car walks in normal road surface, speed is equal to hydraulic pump speed.If CIR is 2 cubic cuns
CIR* tire speeds (RPM)=volume N formula (1)
CIR is to calculate the space in the gear of hydraulic pump two, that is, the unit of account of two hydraulic pumps.[cubic cun]
So during car steering, when the difference in wheel of the walking of left and right two-wheeled is N：
The gap N=steering tire overall diameter * PI- steering tire interior diameter * PI/ diameter of tyres of two tires
Also it is equal to the rotating speed of gear pump, N=is by the amount as two-wheeled speed discrepancy
When car walks in improper road surface, a wheel idle running, when another wheel is not rotated on ground, ground is equal to respect to speed
Zero, and the rotating speed for the tire that dallies can be twice engine speed
So Noff is also equal to=CIR/REVOLUTION* engine speed/engine:The formula of tire ratio 2.5 (2)
Noff above is the race of engine, at 950 turns per minute, the residual quantity of two hydraulic pumps
The following is calculating car at normal and improper road surface, the difference and correlation-like of two hydraulic pumps
Hydraulic pump space (GD)=2CIR formula (3)
GD/231=CIR/gallon=GPR formula (4)
GPR implies that gear often rotates one turn, and some gallon liquid are pumped out
Exemplified by one 3000 pounds, both sides tire is at a distance of 35 inch, the English inch of diameter of tyres 24, when minimum is turned to, outboard wheel
32 feet of diameter, 26 feet of inside tire diameter, the maximum ratio that turns to of both sides tire is 1.23:1.00.
When the English inch of diameter of tyres 24, tire walks 840 turns i.e. one mile, and such as garage's speed per hour 15MPH will use 1,3 and 4 public affairs below
Formula:
Tire speed=840 turn/15MPH/60 points=210RPM of every mile of *
GD=2 cubes of inch
The each raw amounts of changing the line of production of GPR=.008658
Rotating speed * GD=210*GD=420volume N
GPR*RPM=GPM
GPM=1.818gallon is turned in minimum, if 15 miles of speed, produced total amount per minute
Will be calculated below when car is on improper road surface with 2,3 and 4 formula.
Tire speed=2* engine idlings/2.5=760RPM
N=GD*2* engine idlings/2.5=1520volume N (2)
GD/231=CIR/231=.008658GPR
GPR*RPM=GPM
GPM=6.58gallon is per minute.
During normal road surface, it is 420volume that two gear hydraulic pumps 4, which produce the maximum residual quantity of difference,.
Car skids in snowfield, during idle running, and the phase difference that two gear hydraulic pumps 4 are produced is 1520volume.
According to above data, during normal and improper road surface, the difference of two hydraulic pumps, as many as about four times.
Specific, the working condition of two gear hydraulic pump 4 as shown in figure 11 is：
When both sides tire (i.e. two wheels) while rotating together, two 4 liquid mutually produced by transmission of gear hydraulic pump are total
Measure in other side, if the discrepancy amount of both sides is equal, in transmittance process, resistance and pressure (except tooth wall Mo Chali) will not be produced,
Also phase residual quantity N volume indicated above are not had occurs
When any sidecar wheel is fast or is slower than other side, the amount transmitted mutually will must have quantitative difference, and this difference is also equal to
When car is turned to, the ratio of two wheel guide robot.After two gear hydraulic pumps 4 are interconnected, it is in the gear hydraulic pump 4 of normal condition two
Can not possibly there are rotating speed difference or individually rotation, unless there are one of condition：1st, there are other passages can be by the N amounts of difference
Return to low-pressure chamber；2nd, gear and gear wall have sufficient space, make liquid directly to flow back to low-pressure chamber；3rd, inside is no or is insufficient to
Liquid, make gear to rotate freely.
The above-mentioned thin passage 7 of circulation, when car is on normal road surface, is incited somebody to action as the passage of the high and low pressure of gear hydraulic pump 4
Difference is back to low-pressure chamber；When being walked on improper road surface, if a wheel is motionless, liquid flows back to low pressure and most will limited
System, only small part flows back to low pressure and stopped up (low pressure stops up to import and export the position between two turning gears 41 of gear hydraulic pump 4).
Thin passage 7 is circulated in addition to use above, when car is walked in high speed, big quantity of fluid is sent to mutually other side
When, circulate thin passage 7 and limited amount part liquid is flowed back to the low-pressure chamber controlled oneself, in the interior circulation of gear hydraulic pump 4 connected
Flowing, reduces the flow of circulation main channel 6, when two gears combine to form gear hydraulic pump 4, circulates the thin two ends of passage 7 and connects
The delivery outlet of gear hydraulic pump 4 and input port are connected to, delivery outlet or input port liquid flow direction will change with pinion rotation direction
Become and change.
When automobile traveling is on road, respectively transmission quantitative liquid is to other side for both sides gear hydraulic pump 4, but if a certain gear
When the amount that hydraulic pump 4 is produced is more than another side gear hydraulic pump 4, the amount having more must return to low pressure by its thin passage 7 of circulation and stop up,
The thin passage 7 of the circulation will design enough flow return low pressure and stop up, and such as formula (1) is calculated.
And when car walks in improper road surface, the characteristic of thin passage 7 is circulated, the big quantity of fluid of limitation is back to low pressure and stopped up,
Therefore, if tire still attempts rotation, the liquid having more will be extruded into low pressure by pressure and stop up, if rotating speed increase, and pressure will continue to increase
Plus, differential mechanism needs more can just twist pinion rotation energetically, until when pressure is higher than " required torsion ", both sides tire (wheel)
When suffered resistance is equal with respective required torsion, wheel will move along, and is conducive to improper road surface to control, does not allow such as
Easily it is confined on snowfield.
The nine tooth 2WD differential mechanisms of the present invention are will not to change volume because of pressure using liquid, utilize two gear hydraulic pumps 4
Intersect input port and the delivery outlet for being mutually in parallel and being connected with the thin passage 7 of circulation in gear hydraulic pump 4, and reaching two-wheeled can have
Rotating speed difference, and cannot individually rotate.Therefore the size of thin passage 7 and gear is circulated, be would is that " relative torque forces "
Key factor, the thin bore of passage 7 of circulation is smaller, and " relative torque forces " need the rotation of gear hydraulic pump 4 will be smaller.Gear diameter
Bigger generation " relative torque forces " will be bigger.Therefore, the present invention prevents the gear of other side using the gear hydraulic pump 4 of side
The liquid that the rotation of hydraulic pump 4 is produced is pumped into, and the inner chamber of gear hydraulic pump 4 that will attempt to rotation produces enormous pressure, makes liquid attempt
Stopped up by circulating the thin return of passage 7 low pressure, this gear hydraulic pump 4 rotates required power, will be named as herein " relative torque forces ".
Relative torque forces increase as gear rotational speed increases, and when relative torque forces are equal to required torsion, differential mechanism naturally distinguishes power
Transmit to two sidecar wheels.As can be seen here, required torsion of the present invention is overcomes resistance wheel, and band motor-car is moved forward or backward
Dynamic required power；Relative torque forces is the power needed for driving gear pump rotation.
Claims (11)
1. a kind of high-performing car differential control system, includes differential mechanism (1), it is characterized in that：The differential mechanism (1) is additionally provided with
Fuel reserve tank (2),
Gear hydraulic pump (4) is respectively equipped with differential mechanism (1) both sides, the gear hydraulic pump (4) is by two intermeshing rotations
Tooth (41) is constituted, and one of turning gear (411) connects with the output revolving shaft (5) of automotive wheels rotating shaft (3) and differential mechanism (1), is rotated
One of two (412) of tooth and turning gear (411) engaged transmission；
Two circulations main channel (6) are provided between the both sides gear hydraulic pump (4), the circulation main channel (6) acts on liquid
Body is circulated between both sides gear hydraulic pump (4), and the thin passage of circulation is respectively equipped with both sides gear hydraulic pump (4)
(7), the thin passage of the circulation (7) makes gear hydraulic pump (4) interior liquid be circulated by importing and exporting, and acts on the gear liquid of both sides
Balanced hydraulic value when press pump (4) produces hydraulic pressure difference；
Connect on fuel reserve tank (2) provided with two connecting tubes with circulation main channel (6), the connecting tube one (81) is acted on oil storage
Case (2) liquid or gas are delivered to gear hydraulic pump (4), and connecting tube two (82) acts on recovery gear hydraulic pump (4) interior liquid
In to fuel reserve tank (2)；
Liquid is stored by above-mentioned fuel reserve tank (2), connecting tube, circulation main channel (6) and the thin passage (7) of circulation convey liquid to differential
Recyclable flowing, and then the differential mechanism power for controlling differential mechanism (1) to be formed are formed between the gear hydraulic pump (4) of device (1) both sides
Distribution system.
2. a kind of high-performing car differential control system according to claim 1, it is characterized in that：Described differential mechanism
(1) it is located in automobile Qian Catching-rabbits drivings, rearmounted driving or front and rear four-wheel drive.
3. a kind of high-performing car differential control system according to claim 1, it is characterized in that：Two described connections
Pipe is connected by a reversing solenoid valve (9) with circulation main channel (6)；Adjusted in circulation main channel (6) and hydraulic pump (4) provided with one
Regulating device (11), the adjusting means (11) includes the exhaust outlet (10) for being external in engine, and the adjusting means (11) is acted on
The gas in gear hydraulic pump (4) is discharged, smooth be delivered in gear hydraulic pump (4) of liquid is formed without circulation under gaseous state
Flowing.
4. a kind of high-performing car differential control system according to claim 1, it is characterized in that：Described circulation master is led to
Road (6) is two interconnections in the woven hose of the liquid entrance of differential mechanism (1) both sides gear hydraulic pump (4), the circulation
Thin passage (7) is connected in gear hydraulic pump (4) in parallel and imports and exports and circulate on main channel (6).
5. a kind of high-performing car differential control system according to claim 1, it is characterized in that：Described circulation is carefully led to
Road (7) is the gap structure of oil pipe, the through hole in gear hydraulic pump (4) housing or gear hydraulic pump (4) housing and turning gear (41)
Into the thin passage of the circulation (7) two ends are connected to the import and export of gear hydraulic pump (4), and the import and export are located at gear hydraulic pump
(4) position between two turning gears (41).
6. a kind of high-performing car differential control system according to claim 3, it is characterized in that：Described commutation electromagnetism
Valve (9) includes shell (91), magnet (92), return spring (93) and commutation guide block (94), the magnet (92), return spring
(93) it is located at commutation guide block (94) in shell (91), magnet (92) is located at below return spring (93) or return spring (93)
Interior, commutation guide block (94) is located above return spring (93), and the commutation guide block (94) is fitted close with shell (91) inner chamber, commutation
Guide block (94) forms up and down formula structure by magnet (92) and acting on for return spring (93) in shell inner cavity (91),
Shell (91) is provided with four connectors, and commutation guide block (94) is provided with two interface channels, two interface channels and connector pair
Connect to form passage one (96) and passage two (95), the passage one (96) is that liquid or gas are main logical by circulating by fuel reserve tank (2)
Road (6) is delivered to the commutation passage of gear hydraulic pump (4), and passage two (95) is liquid by circulating main channel (6) from gear liquid
Press pump (4) is recycled to the commutation passage of fuel reserve tank (2)；Two commutation passage openings are living up and down by commutation guide block (94)
Dynamic misplaced with shell (91) is realized.
7. a kind of high-performing car differential control system according to claim 1, it is characterized in that：Described fuel reserve tank
(2) single-way switch (12) is provided with at input port, fuel reserve tank (2) side is provided with delivery outlet (22), and the equipped at outlet port is provided with
One electromagnetic valve switch (123).
8. a kind of high-performing car differential control system according to claim 7, it is characterized in that：Described single-way switch
(12) it is made up of diaphragm seal (121) and adjustable spring (122), the diaphragm seal (121) is fixed on fuel reserve tank by a movable axis (13)
(2) delivery outlet (21) place, adjustable spring (122) is located under diaphragm seal (121) and is fixed on fuel reserve tank (2), diaphragm seal (121)
Open seals performance is formed by the movable axis (13) and the contractility of adjustable spring (122) as levers support point.
9. a kind of high-performing car differential control system according to claim 7, it is characterized in that：Described single-way switch
(12) switched for a mechanical action, magnetic valve (123) is an electric-controlled switch.
10. a kind of high-performing car differential control system according to claim 1, it is characterized in that：Described circulation is thin
Passage (7) uninterrupted is equal to differential mechanism (1) both sides gear hydraulic pump (4) maximum liquid flow moment amount at normal road surface.
11. a kind of high-performing car differential control system according to claim 3, it is characterized in that：Described regulation dress
Put (11) and include a housing (111), lever arm ball-cock assembly (112) and magnetic force control (113), described exhaust outlet (10) is set
On housing (111), the lever arm ball-cock assembly (112) is located at below exhaust outlet (10)；Described magnetic force control (113) is located at
Above lever arm ball-cock assembly (112), the magnetic force control (113) is controlled provided with a microswitch (114), the microswitch
(114) it is located at below lever arm ball-cock assembly (112), the microswitch (114) passes through the up and down of lever arm ball-cock assembly (112)
Realize that opening is controlled the working condition of magnetic force control (113)；Described lever arm ball-cock assembly (112) is by opening
Magnetic force control (113), which is realized, attracts lever arm ball-cock assembly (112) locked upwards, makes lever arm ball-cock assembly (112) and exhaust outlet
(10) the sealed cooperation of opening and closing is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510607629.7A CN105090433B (en) | 2015-09-22 | 2015-09-22 | A kind of high-performing car differential control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510607629.7A CN105090433B (en) | 2015-09-22 | 2015-09-22 | A kind of high-performing car differential control system |
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| Publication Number | Publication Date |
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| CN105090433A CN105090433A (en) | 2015-11-25 |
| CN105090433B true CN105090433B (en) | 2017-10-24 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0506508A1 (en) * | 1991-03-29 | 1992-09-30 | Glaenzer Spicer | Arrangement for the rotational drive of two wheels of the same shaft with regulation of their rotational speed |
| CN1540186A (en) * | 2003-04-21 | 2004-10-27 | 寿见祥 | Circular hydraulic unit of substituting seven functions of motor vehicles |
| CN101307821A (en) * | 2008-05-13 | 2008-11-19 | 冯政民 | Hydraulic automobile transmission differential mechanism |
| CN204961754U (en) * | 2015-09-22 | 2016-01-13 | 吴梁曼迪 | High performance automotive differential control system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03272349A (en) * | 1990-03-20 | 1991-12-04 | Mazda Motor Corp | Hydraulic differential gear |
| JP2006316856A (en) * | 2005-05-11 | 2006-11-24 | Toyota Motor Corp | Power transmission device |
-
2015
- 2015-09-22 CN CN201510607629.7A patent/CN105090433B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0506508A1 (en) * | 1991-03-29 | 1992-09-30 | Glaenzer Spicer | Arrangement for the rotational drive of two wheels of the same shaft with regulation of their rotational speed |
| CN1540186A (en) * | 2003-04-21 | 2004-10-27 | 寿见祥 | Circular hydraulic unit of substituting seven functions of motor vehicles |
| CN101307821A (en) * | 2008-05-13 | 2008-11-19 | 冯政民 | Hydraulic automobile transmission differential mechanism |
| CN204961754U (en) * | 2015-09-22 | 2016-01-13 | 吴梁曼迪 | High performance automotive differential control system |
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| Publication number | Publication date |
|---|---|
| CN105090433A (en) | 2015-11-25 |
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