CN110217056A - A kind of Electric Motor Wheel tire automatic inflatable device of air and its control method - Google Patents
A kind of Electric Motor Wheel tire automatic inflatable device of air and its control method Download PDFInfo
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- CN110217056A CN110217056A CN201910466002.2A CN201910466002A CN110217056A CN 110217056 A CN110217056 A CN 110217056A CN 201910466002 A CN201910466002 A CN 201910466002A CN 110217056 A CN110217056 A CN 110217056A
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- Prior art keywords
- control valve
- tire
- wheel
- electric motor
- air
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/10—Arrangement of tyre-inflating pumps mounted on vehicles
- B60C23/12—Arrangement of tyre-inflating pumps mounted on vehicles operated by a running wheel
-
- 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
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Tires In General (AREA)
Abstract
The invention discloses a kind of Electric Motor Wheel tire automatic inflatable device of air, comprising: gas source；And control valve, it is connect with the gas source；Side assembly of devices is taken turns, is connected between the control valve and Electric Motor Wheel tire；Wheel side assembly of devices includes: hub motor shell air flue, and the inside of the hub motor shell is arranged in, and one end of the hub motor shell air flue is connected with the control valve；The inside of wheel rim is arranged in wheel rim air flue, and wheel rim air flue one end is connect with the other end of the hub motor shell air flue, and the other end of the wheel rim air flue is connect with Electric Motor Wheel tire.The present invention also provides a kind of control methods of Electric Motor Wheel tire automatic inflatable device of air, and the tire pressure of Electric Motor Wheel tire can be accurately controlled according to specific road conditions and environment, improves the adaptability of electric wheel truck, and improve the service life of Electric Motor Wheel tire.
Description
Technical field
The present invention relates to running car technical fields, and more particularly, the present invention relates to a kind of Electric Motor Wheel tires to fill automatically
Means of deflation and its control method.
Background technique
With the development of the automobile industry, vehicle is also gradually applied to more fields, and requirement of the people for vehicle is also got over
Come higher, tire automatic inflatable device of air is used on military vehicle, improves army in World War II
Vehicle passage capacity and develop central tire aerating and exhaust device, gradually mature with technology, which is also gradually applied to the people
With passenger car and offroad vehicle, is analyzed from the angle of dynamic property and tire pressure is adjusted to proper range according to different surface conditions
The dynamic property and passability of vehicle can be farthest improved using ground attachment condition, and tire pressure directly affects
To oil consumption height and tire wear situation, thus controls tire pressure and be in OK range for improving trafficability, fuel oil
Economy and driving safety are significant.
In-wheel motor driving formula vehicle is by the structures centralized arrangement such as motor, deceleration device, brake apparatus in hub for vehicle wheel
In the middle i.e. using the vehicle of In-wheel-motor driving.More compact in this arragement construction, energy transformation ratio is higher and increases electronic
Vehicle course continuation mileage, Electric Motor Wheel technical research in recent years more and more attention has been paid to, exactly because also electronic wheel apparatus is highly integrated
It turns to the design of tire automatic inflatable/air and integrates and bring no small difficulty, and currently some top grades in conventional truck field
Vehicle is typically provided with device for monitoring tyre pressure to remind driver to carry out inflation/deflation operation when tire pressure is in as unsafe condition,
The function that can not realize automatic inflatable/air, the device also having need additionally to install additional other components and carry out realization device automatic inflatable
The function of gas, but there is the disadvantage that structure is complicated, integrated level is low and is merely capable of in the conventional truck more abundant applied to space in it
End, but there are no a set of perfect tire automatic inflatable device of air appearance in In-wheel-motor driving vehicular field.
Summary of the invention
It is an object of the invention to design and develop a kind of Electric Motor Wheel tire automatic inflatable device of air, it is applied to Electric Motor Wheel
The tire automatic inflatable device of air of the highly integrated wheel side assembly part of vehicle is driven, the air flue of wheel side assembly is fully integrated
To inside device and carrying out rational deployment, in parking or driving automobile tire can be inflated, deflated, survey pressure, pressure maintaining
Device, the automobile for equipping the device greatly increase the passage capacity of automobile, economy and driving safety.
Another object of the present invention is to have designed and developed a kind of control method of Electric Motor Wheel tire automatic inflatable device of air,
The tire pressure that Electric Motor Wheel wheel can be accurately controlled according to specific road conditions and environment, makes tire keep different tires under different road conditions
Pressure, extends the service life of tire.
Technical solution provided by the invention are as follows:
A kind of Electric Motor Wheel tire automatic inflatable device of air, comprising:
Gas source；And
Control valve is connect with the gas source；
Side assembly of devices is taken turns, is connected between the control valve and Electric Motor Wheel tire；
Wheel side assembly of devices includes:
Hub motor shell is arranged on the outside of hub motor；
The inside of the hub motor shell, the hub motor shell air flue is arranged in hub motor shell air flue
One end be connected with the control valve；
The inside of wheel rim, and wheel rim air flue one end and the hub motor shell gas is arranged in wheel rim air flue
The other end in road connects, and the other end of the wheel rim air flue is connect with Electric Motor Wheel tire.
Preferably, the gas source includes:
Air compressor；And
Air accumulator is connect with the air compressor.
Preferably, the control valve includes:
Supercharger control valve is connect with the gas source；
Charge and discharge gas control valve is connect with the supercharger control valve, and the charge and discharge gas control valve has air inlet station
With outlet station；
Air flue distributor, both ends are respectively air inlet and multiple gas outlets, and the air inlet and the charge and discharge
Gas control valve connection；
Multiple discharge control valves are respectively corresponded and are fixedly mounted at multiple gas outlets of the air flue distributor；
Wherein, the gas source, supercharger control valve, charge and discharge gas control valve, air flue distributor, multiple discharge control valves and institute
Wheel side assembly of devices is stated to be arranged on the base apparatus using In-wheel-motor driving.
Preferably, further includes:
Control unit, simultaneously with the supercharger control valve, the charge and discharge gas control valve and the multiple discharge control valve
Connection, and the supercharger control valve, the charge and discharge gas control valve and the multiple discharge control valve can be controlled respectively；
Device for monitoring tyre pressure is arranged in inside tires, and the device for monitoring tyre pressure is connect with described control unit.
Preferably, further includes:
First high pressure air flue, is connected between the gas source and the supercharger control valve,
Second high pressure air flue is connected between the supercharger control valve and the charge and discharge gas control valve；
Third high pressure air flue is connected to air inlet one end of the charge and discharge gas control valve Yu the air flue distributor；
Multiple connecting pipes are connected to the another of the multiple discharge control valve and the hub motor shell air flue
Between one end.
Preferably, the supercharger control valve is 2/2-way solenoid valve, and the charge and discharge gas control valve is 3-position 4-way electricity
Magnet valve, the discharge control valve are 2/2-way solenoid valve.
A kind of control method of Electric Motor Wheel tire automatic inflatable device of air, includes the following steps:
Step 1: environment temperature, pavement temperature and road gradient being monitored by sensor, monitored by device for monitoring tyre pressure
The real-time tire pressure of tire, and real-time tire pressure is transmitted to control unit；
Step 2: tire pressure standard of the real-time tire pressure in control unit is compared:
If real-time tire pressure is less than tire pressure standard, control unit selects following modes of inflation:
Control unit controls the air inlet station conducting of supercharger control valve and charge and discharge gas control valve, while controlling insufficient with tire pressure
The corresponding discharge control valve of tire open, high pressure gas successively passes through supercharger control valve, charge and discharge gas control valve, air flue from gas source
Distributor, discharge control valve, hub motor shell air flue and wheel rim air flue, are finally connected to tire；
If real-time tire pressure is greater than tire pressure standard, control unit selects following air bleeding mode:
Control unit control supercharger control valve close, control charge and discharge gas control valve outlet station conducting, while control with
The corresponding discharge control valve of the excessively high tire of tire pressure is opened, and gas is flowed out out of tire, successively passes through wheel rim air flue, hub motor
After shell air flue, discharge control valve and air flue distributor, it is discharged into atmosphere by charge and discharge gas control valve.
Preferably, the tire pressure standard is divided into Three models according to different road conditions:
When the road conditions are highway mode: tire pressure standard is 600KPa；
When the road conditions are off-road mode: tire pressure standard is 450KPa；
When the road conditions are soft mode: tire pressure standard is 300KPa.
Preferably, under the modes of inflation, the discharge control valve valve opening meets following condition:
If 75%Pw< Pv< PwWhen, ov=40%；
If 50%Pw≤Pv< 75%PwWhen, ov=75%；
If Pv≤ 50%PwWhen, ov=100%；
Wherein, PvFor real-time tire pressure, PwFor tire pressure standard, OV is discharge control valve valve opening.
Under air bleeding mode, discharge control valve valve opening and meet following condition:
If Pw< Pv< 125%PwWhen, ov=40%；
If Pv>=150%PwWhen, ov=75%；
If 125%Pw≤Pv< 150%PwWhen, ov=100%；
Wherein, PvFor real-time tire pressure, PwFor tire pressure standard, OV is discharge control valve valve opening.
Preferably, when car weight meets: when 0 < m < 6000kg, tire pressure meets following condition:
When speed meets 0 < V≤80km/h, tire pressure meets:
Wherein, PvFor the tire pressure of Electric Motor Wheel tire, β is beam angle in the front-wheel of Electric Motor Wheel tire, and ξ is road gradient, and m is vehicle
Weight, g is acceleration of gravity, frFor the coefficient of friction of vehicle tyre and ground, fvFor the rolling resistance of vehicle tyre, T0
For environment temperature, T1For pavement temperature, K is weight coefficient, and V is Vehicle Speed；
Wherein, road gradient meets:
Wherein, τ is the angle of vehicle running surface and horizontal plane；
When speed meets V > 80km/h, tire pressure meets:
Wherein, PvFor the tire pressure of Electric Motor Wheel tire, β is beam angle in the front-wheel of Electric Motor Wheel tire, and ξ is road gradient, and m is vehicle
Weight, g is acceleration of gravity, frFor the coefficient of friction of vehicle tyre and ground, fvFor the rolling resistance of vehicle tyre, τ is
The angle of vehicle running surface and horizontal plane, T0For environment temperature, T1For pavement temperature, K is weight coefficient, and V is vehicle driving speed
Degree；
When car weight meets 6000kg≤m < 20000kg, tire pressure meets:
Wherein, PvFor the tire pressure of Electric Motor Wheel tire, β is beam angle in the front-wheel of Electric Motor Wheel tire, and ξ is road gradient, and m is vehicle
Weight, g is acceleration of gravity, frFor the coefficient of friction of vehicle tyre and ground, fvFor the rolling resistance of vehicle tyre, T0
For environment temperature, T1For pavement temperature, K is weight coefficient, SfFor front face area of automobile；And
When car weight meets m >=20000kg, tire pressure meets:
Wherein, PvFor the tire pressure of Electric Motor Wheel tire, β is beam angle in the front-wheel of Electric Motor Wheel tire, and ξ is road gradient, and m is vehicle
Weight, g is acceleration of gravity, frFor the coefficient of friction of vehicle tyre and ground, fvFor the rolling resistance of vehicle tyre, τ is
The angle of vehicle running surface and horizontal plane, T0For environment temperature, T1For pavement temperature, K is weight coefficient, SfWindward for automobile
Area.
It is of the present invention the utility model has the advantages that
(1) Electric Motor Wheel tire automatic inflatable device of air provided by the invention, can on In-wheel-motor driving vehicle by being installed at
Greatly to improve In-wheel-motor driving vehicle complicated, badly band walks ability, shortens runing time, improve operation effect
Rate, save fuel, extend the service life of vehicle, can vehicle run and stop when real-time monitoring automobile tire tire pressure,
Automobile tire is inflated, is deflated, surveys pressure, pressure maintaining, suitable for offroad vehicle, loaded vehicle, mine car, the oil using In-wheel-motor driving
Field vehicle, engineering machine vehicle etc. are remarkably improved the dynamic property and safety of vehicle, with good application prospect.
(2) control method of Electric Motor Wheel tire automatic inflatable device of air provided by the invention, can according to specific road conditions and
Environment accurately controls the tire pressure of Electric Motor Wheel tire, and tire is made to keep different tire pressures under different road conditions, extends the longevity of tire
Life.
Detailed description of the invention
Fig. 1 is overall structural schematic diagram of the present invention.
Fig. 2 is the structural schematic diagram of opinion wheel side assembly of devices of the present invention.
Fig. 3 is the external side structural schematic diagram of device of the present invention.
Fig. 4 is the external other side structural schematic diagram of device of the present invention.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
The present invention provides a kind of Electric Motor Wheel tire automatic inflatable device of air, including device for monitoring tyre pressure 190, compressed air source unit,
Control valve, control unit 170, more connecting pipes 165 and wheel side assembly of devices 150, wherein device for monitoring tyre pressure 190 is arranged
In four, the automobile of In-wheel-motor driving or multiple inside tires, compressed air source unit, control valve, control unit 170, more connecting tubes
Road 165 and wheel side assembly of devices 150 are arranged on the base apparatus using In-wheel-motor driving.
As shown in Figure 1, being overall structural schematic diagram of the present invention, the control valve includes: supercharger control valve
110, charge and discharge gas control valve 120 and multiple discharge control valves 141,142,143,144, wherein supercharger control valve 110 is two two
Three-way electromagnetic valve, charge and discharge gas control valve 120 are three position four-way electromagnetic valve, and discharge control valve is 2/2-way solenoid valve, control of export
The tire one-to-one correspondence of valve and the automobile using In-wheel-motor driving, discharge control valve 141 is corresponding with off-front wheel, discharge control valve
142 is corresponding with off hind wheel, and discharge control valve 143 is corresponding with off hind wheel, and discharge control valve 144 is corresponding with off-front wheel, out
The quantity of mouth control valve is identical as the quantity of tire, and the base apparatus top using In-wheel-motor driving, gas is arranged in compressed air source unit
Source device includes: air compressor 101, air accumulator 102, filter 103 and multiple pressure pipings, and air compressor 101 is by ring
Air boil down to high pressure gas in border, and pass through pressure piping by high-pressure gas transport into air accumulator 102, and pass through
The pressure that pressure gauge maintains it internal be it is constant, filter 103 is connected by pressure piping with air accumulator 102, it is therefore an objective to
Filtering enters the gas of device, improves service life and the job stability of control valve and pipeline；One end of supercharger control valve 110 passes through
First high pressure air flue 161 is connect with the filter 103 of compressed air source unit, and the other end of supercharger control valve 110 passes through the second high pressure gas
Road 162 is connect with one end of charge and discharge gas control valve 120, and charge and discharge gas control valve 120 also passes through 165 joint noise reduction valve of connecting pipe
180, it when the device of the invention deflates a tire, will not make a noise, and station there are two the tools of charge and discharge gas control valve 120,
First station 121 is air inlet station, and second station 122 is outlet station, and charge and discharge gas control valve 120 passes through third height in the other end
It calms the anger 163 connection third high pressure air flues 130, and pressure sensor 164 is installed on third high pressure air flue 163, at any time
The pressure value of third high pressure air flue 163 is monitored, third high pressure air flue 130 has air inlet and multiple gas outlets, third high pressure gas
The gas outlet quantity in road 130 is identical as the quantity of tire, and the gas outlet of third high pressure air flue 130 and tire correspond,
Multiple discharge control valves are arranged in a one-to-one correspondence in multiple gas outlets of third high pressure air flue 130, in the other end of discharge control valve
It is connected one to one by multiple connecting pipes 165 and takes turns side assembly of devices 150.
As shown in Figure 1, the first station 121 of device for monitoring tyre pressure 190, supercharger control valve 110, charge and discharge gas control valve 120
It is all connect with control unit 170 with second station 122 and third high pressure air flue 130, control unit 170 receives tire pressure monitoring dress
190 real-time tire pressure signal is set, and control unit 170 can control supercharger control valve 110, charge and discharge gas control valve 120 respectively
The first station 121 and second station 122 and multiple discharge control valves.
As shown in Fig. 2, for the structural schematic diagram of wheel side assembly of devices 150 of the present invention, using In-wheel-motor driving
Automobile is automobile tire 151 and wheel by the structures centralized arrangement such as motor, deceleration device and brake apparatus among automotive hub
Rim 152 connects, and wheel rim 152 is connected with hub motor shell 156, is accommodating chamber inside hub motor shell 156, in accommodating chamber
Portion is hub motor, and wheel motor shaft 155 drives the rotation of tire, and wheel side of the present invention assembly of devices 150 includes: wheel
Hub electric machine casing 156, hub motor shell air flue 157 and wheel rim air flue 158；Hub motor shell 156, setting is in wheel hub electricity
On the outside of machine, and it is enclosed in around hub motor；Hub motor shell air flue 157 is arranged in hub motor shell 156
Portion, and 157 one end of hub motor shell air flue is connect by connecting pipe 165 with discharge control valve, hub motor shell gas
The other end in road 157 is connect with wheel rim air flue 158, and wheel rim air flue 158 is arranged in the inside of wheel rim 11, wheel rim air flue 158 it is another
One end is directly connected with automobile tire 151, can be by inside gas transport to automobile tire 151, in hub motor shell air flue
Leakproofness is increased by sealing ring 153,154 between 157 and wheel rim air flue 158, and the air flue for taking turns side assembly of devices 150 is whole
It is integrated in the inside of electronic wheel apparatus.
It is as shown in Figure 3, Figure 4 the overall structure figure of Electric Motor Wheel tire automatic inflatable device of air of the present invention, this dress
The air flue set all concentrates on the inside of electronic wheel apparatus, and other component is all mounted on the domain device top of automobile, whole
It is highly integrated.
Electric Motor Wheel tire automatic inflatable device of air provided by the invention, the distribution circuit picked out by third high pressure air flue 130
It is connected with hub motor shell air flue 157, hub motor shell air flue 157 is connected with wheel rim air flue 158, is finally connected with tire
It is logical, according to the pressure sensor 164 in third high pressure air flue 163 and the device for monitoring tyre pressure being installed in four tires
190 feed back to the signal of control unit 170, by control unit 170 to the control realization device inflation/deflation of each control valve
Function.
In addition the present apparatus can also be by changing other than it can reach the disabling present apparatus by disabling discharge control valve
Become the link position of wheel rim 152 and wheel motor shaft 155 to disable the present apparatus, wheel hub electric machine casing gas when the present apparatus works normally
Road 157 is connected with wheel rim air flue 158, and to disable the present apparatus can be on the basis of normal operation position by 152 phase of wheel rim
90 ° are rotated clockwise or counter-clockwise for wheel motor shaft 155, at this time hub motor shell air flue 157 and wheel rim air flue 158
It will be unable to be connected to, to achieve the purpose that the manual deactivation present apparatus.
Electric Motor Wheel tire automatic inflatable device of air provided by the invention can carry out automobile tire in parking or driving
Inflation, the device deflated, survey pressure, pressure maintaining, easily and quickly detect and adjust tire pressure, make automobile according to different road surfaces
It selects to be suitable for tire pressure, improves automobile handling capacity；When automobile long-distance running, tire fever, the device can be detected at any time, be adjusted
The case where whole tire pressure, avoidable tyre break, occurs；When taking turns puncture, it can be travelled in inflation, automobile is made to be detached from danger
Strategical vantage point band, traveling as far as possible；Tire pressure can be reduced by the device, so that automobile height is reduced, so that automobile is logical
Cross the place of height limitation.Or by reducing tire pressure, increase tire to traction, by it is some easily make vehicle slip or
The road conditions fallen into, such as sandy beach, snowfield, wetland road surface.
The present invention also provides a kind of control methods of Electric Motor Wheel tire automatic inflatable device of air, include the following steps:
Step 1: environment temperature, pavement temperature and road gradient being monitored by sensor, monitored by device for monitoring tyre pressure
The real-time tire pressure of tire, and real-time tire pressure is transmitted to control unit；
Step 2: tire pressure standard of the real-time tire pressure in control unit is compared:
If real-time tire pressure is less than tire pressure standard, control unit selects following modes of inflation:
Control unit controls the air inlet station conducting of supercharger control valve and charge and discharge gas control valve, while controlling insufficient with tire pressure
The corresponding discharge control valve of tire open, high pressure gas successively passes through supercharger control valve, charge and discharge gas control valve, air flue from gas source
Distributor, discharge control valve, hub motor shell air flue and wheel rim air flue, are finally connected to tire；
If real-time tire pressure is greater than tire pressure standard, control unit selects following air bleeding mode:
Control unit control supercharger control valve close, control charge and discharge gas control valve outlet station conducting, while control with
The corresponding discharge control valve of the excessively high tire of tire pressure is opened, and gas is flowed out out of tire, successively passes through wheel rim air flue, hub motor
After shell air flue, discharge control valve and air flue distributor, it is discharged into atmosphere by charge and discharge gas control valve.
Step 2.1, tire pressure standard is divided into Three models according to different road conditions:
Highway mode: mainly including the road conditions of hard base pitch or cement pavement, and tire pressure standard is 600KPa；
Off-road mode: mainly including the road conditions of the simply-built highways such as field, gobi, desert, and tire pressure standard is 450KPa；
Soft mode: mainly including the road conditions of sand ground, snowfield, muddy road surface, and tire pressure standard is 300KPa.
Each valve has 40%, 75% and 100% 3 aperture in step 2, and the aperture of valve can pass through control
Unit control, under modes of inflation, the valve opening of discharge control valve and the real-time tire pressure of tire meet following condition:
If 75%Pw< Pv< PwWhen, ov=40%；
If 50%Pw≤Pv< 75%PwWhen, ov=75%；
If Pv≤ 50%PwWhen, ov=100%；
Wherein, PvFor real-time tire pressure, PwFor tire pressure standard, OV is valve opening.
Under air bleeding mode, the valve opening of discharge control valve and the real-time tire pressure of tire meet following condition:
If Pw< Pv< 125%PwWhen, ov=40%；
If Pv>=150%PwWhen, ov=75%；
If 125%Pw≤Pv< 150%PwWhen, ov=100%；
Wherein, PvFor real-time tire pressure, PwFor tire pressure standard, OV is valve opening.
Real-time tire pressure is influenced by the speed and car weight of the vehicle of In-wheel-motor driving, when car weight meets: 0 < m <
When 6000kg, tire pressure is mainly influenced by speed,
When speed meets 0 < V≤80km/h, tire pressure meets:
Wherein, PvFor the tire pressure of Electric Motor Wheel tire, β is beam angle in the front-wheel of Electric Motor Wheel tire, and ξ is road gradient, and m is vehicle
Weight, g is acceleration of gravity, frFor the coefficient of friction of vehicle tyre and ground, fvFor the rolling resistance of vehicle tyre, T0
For environment temperature, T1For pavement temperature, K is weight coefficient, and V is Vehicle Speed；
Wherein, road gradient meets:
Wherein, τ is the angle of vehicle running surface and horizontal plane；
When speed meets V > 80km/h, tire pressure meets:
Wherein, PvFor the tire pressure of Electric Motor Wheel tire, β is beam angle in the front-wheel of Electric Motor Wheel tire, and ξ is road gradient, and m is vehicle
Weight, g is acceleration of gravity, frFor the coefficient of friction of vehicle tyre and ground, fvFor the rolling resistance of vehicle tyre, τ is
The angle of vehicle running surface and horizontal plane, T0For environment temperature, T1For pavement temperature, K is weight coefficient, and V is vehicle driving speed
Degree；
In 6000kg or more, tire pressure is mainly influenced by car weight car weight, when car weight meets 6000kg≤m < 20000kg,
Tire pressure meets:
Wherein, PvFor the tire pressure of Electric Motor Wheel tire, β is beam angle in the front-wheel of Electric Motor Wheel tire, and ξ is road gradient, and m is vehicle
Weight, g is acceleration of gravity, frFor the coefficient of friction of vehicle tyre and ground, fvFor the rolling resistance of vehicle tyre, T0
For environment temperature, T1For pavement temperature, K is weight coefficient, SfFor front face area of automobile；
When car weight meets m >=20000kg, tire pressure meets:
Wherein, PvFor the tire pressure of Electric Motor Wheel tire, β is beam angle in the front-wheel of Electric Motor Wheel tire, and ξ is road gradient, and m is vehicle
Weight, g is acceleration of gravity, frFor the coefficient of friction of vehicle tyre and ground, fvFor the rolling resistance of vehicle tyre, τ is
The angle of vehicle running surface and horizontal plane, T0For environment temperature, T1For pavement temperature, K is weight coefficient, SfWindward for automobile
Area.
Wherein, front face area of automobile meets:
Sf=0.81bh
Wherein, SfFor front face area of automobile, b is the width of vehicle, and h is the height of vehicle.
In one embodiment, the angle of vehicle running surface and horizontal plane is 18 °, i.e., road gradient is 20 °, environment temperature
Degree is 24 DEG C, and pavement temperature is 36 DEG C, and beam angle is 9 ° in the front-wheel of vehicle tyre, the range of friction coefficients of vehicle tyre and ground
For 1.1-1.5, the coefficient of rolling resistance of vehicle tyre is in highway mode, range 0.01-0.018, the rolling of vehicle tyre
For resistance coefficient in off-road mode, range 0.025-0.03, the coefficient of rolling resistance of vehicle tyre is in soft mode, range
Rolling resistance for 0.1-0.25, vehicle tyre meets:
fv=f1m
Wherein, fvFor the rolling resistance of vehicle tyre, f1For the coefficient of rolling resistance of vehicle tyre, m is the weight of vehicle.
Under highway mode, the coefficient of friction of car weight 2500kg, vehicle tyre and ground are 1.1, and acceleration of gravity is
9.8m/s2, the coefficient of rolling resistance of vehicle tyre is 0.015, i.e. the rolling resistance of vehicle tyre is 37.5N, is in speed
When 80km/h, the real-time tire pressure of weight coefficient 0.0029, vehicle is 593.1KPa, meets 75%Pw< Pv< Pw, so Ying Xuan
Select modes of inflation, valve opening 40%.
In another embodiment, under highway mode, car weight 2500kg, the angle of vehicle running surface and horizontal plane
It is 18 °, i.e., road gradient is 20 °, and environment temperature is 24 DEG C, and pavement temperature is 36 DEG C, and beam angle is 9 ° in the front-wheel of vehicle tyre,
Vehicle tyre and the coefficient of friction on ground are 1.1, acceleration of gravity 9.8m/s2, the coefficient of rolling resistance of vehicle tyre is
0.015, i.e., the rolling resistance of vehicle tyre be 37.5N, speed be 90km/h when, weight coefficient 4.63, vehicle it is real-time
Tire pressure is 629.22KPa, meets Pw< Pv< 125%Pw, so air bleeding mode should be selected, valve opening 40%.
In another embodiment, under highway mode, car weight 9000kg, the angle of vehicle running surface and horizontal plane
It is 18 °, i.e., road gradient is 20 °, and environment temperature is 24 DEG C, and pavement temperature is 36 DEG C, and beam angle is 9 ° in the front-wheel of vehicle tyre,
Vehicle tyre and the coefficient of friction on ground are 1.1, acceleration of gravity 9.8m/s2, the coefficient of rolling resistance of vehicle tyre is
0.015, i.e. the rolling resistance of vehicle tyre is 37.5N, and the width of vehicle is 3.3m, and the height of vehicle is 2.8m, so vehicle
Front face area be 7.4844m2, the real-time tire pressure of weight coefficient 121.13, vehicle is 617.58KPa, meets Pw< Pv<
125%Pw, air bleeding mode, valve opening 40% should be selected.
In another embodiment, under highway mode, car weight 23000kg, the folder of vehicle running surface and horizontal plane
Angle is 18 °, i.e., road gradient is 20 °, and environment temperature is 24 DEG C, and pavement temperature is 36 DEG C, and beam angle is in the front-wheel of vehicle tyre
9 °, the coefficient of friction on vehicle tyre and ground is 1.1, acceleration of gravity 9.8m/s2, the coefficient of rolling resistance of vehicle tyre is
0.015, i.e. the rolling resistance of vehicle tyre is 37.5N, and the width of vehicle is 3.3m, and the height of vehicle is 2.8m, so vehicle
Front face area be 7.4844m2, the real-time tire pressure of weight coefficient 27.88, vehicle is 551.26KPa, meets 75%Pw< Pv
< Pw, so modes of inflation should be selected, valve opening 40%.
When the tire of vehicle is punctured or when gas leakage, control unit can control supercharger control valve, charge and discharge gas control valve and
The aperture of discharge control valve is 100%, therefore can guarantee that the tire of vehicle can be travelled in inflation, keeps automobile out of danger
Area, traveling as far as possible.
A kind of control method course of work of Electric Motor Wheel tire automatic inflatable device of air provided by the invention are as follows:
Modes of inflation: the tire information of vehicle is monitored by being installed on the device for monitoring tyre pressure of inside tires and by tire
Information is sent to control unit, and by being judged after comparing with best tire pressure, in under-inflation, control is single
Member control supercharger control valve is opened, and controls the first station conducting of charge and discharge gas control valve, while controlling insufficient with air pressure
The discharge control valve installed on the corresponding air flue distributor of tire is opened, and passes through wheel hub by the high pressure gas of discharge control valve
Electric machine casing air flue is connected with wheel rim air flue, and the final tire that is connected to is to the insufficient tyre inflating of air pressure.
Air bleeding mode: when tire pressure is excessively high, control unit control supercharger control valve is closed, and controls charge and discharge gas control valve
Second station conducting, while controlling the discharge control valve installed on corresponding with the excessively high tire of air pressure air flue distributor and beating
Open to deflate, gas is flowed out out of tire, successively by wheel rim air flue, hub motor shell air flue, discharge control valve and
It after gas distributing device, is finally discharged into atmosphere by charge and discharge gas control valve and noise reduction valve, thus what realization deflated a tire
Function.
The control method of Electric Motor Wheel tire automatic inflatable device of air provided by the invention, can be according to specific road conditions and environment
The tire pressure of accurate control Electric Motor Wheel tire, makes tire keep different tire pressures under different road conditions, improves Electric Motor Wheel tire
Service life saves financial resources.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (9)
1. a kind of Electric Motor Wheel tire automatic inflatable device of air characterized by comprising
Gas source；And
Control valve is connect with the gas source；
Side assembly of devices is taken turns, is connected between the control valve and Electric Motor Wheel tire；
Wherein, wheel side assembly of devices includes:
Hub motor shell is arranged on the outside of hub motor；
Hub motor shell air flue, is arranged in the inside of the hub motor shell, and the one of the hub motor shell air flue
End is connected with the control valve；
The inside of wheel rim, and wheel rim air flue one end and the hub motor shell air flue is arranged in wheel rim air flue
Other end connection, the other end of the wheel rim air flue are connect with Electric Motor Wheel tire.
2. Electric Motor Wheel tire automatic inflatable device of air as described in claim 1, which is characterized in that the gas source includes:
Air compressor；And
Air accumulator is connect with the air compressor.
3. Electric Motor Wheel tire automatic inflatable device of air as described in claim 1, which is characterized in that the control valve includes:
Supercharger control valve is connect with the gas source；
Charge and discharge gas control valve is connect with the supercharger control valve, and the charge and discharge gas control valve has air inlet station and goes out
Gas station；
Air flue distributor, both ends are respectively air inlet and multiple gas outlets, and the air inlet and the charge and discharge gas control
Valve connection processed；
Multiple discharge control valves are respectively corresponded and are fixedly mounted at multiple gas outlets of the air flue distributor；
Wherein, the gas source, supercharger control valve, charge and discharge gas control valve, air flue distributor, multiple discharge control valves and the wheel
Side assembly of devices is arranged on the base apparatus using In-wheel-motor driving.
4. Electric Motor Wheel tire automatic inflatable device of air as claimed in claim 3, which is characterized in that further include:
Control unit is connect with the supercharger control valve, the charge and discharge gas control valve and the multiple discharge control valve simultaneously,
And the supercharger control valve, the charge and discharge gas control valve and the multiple discharge control valve can be controlled respectively；
Device for monitoring tyre pressure is arranged in inside tires, and the device for monitoring tyre pressure is connect with described control unit.
5. Electric Motor Wheel tire automatic inflatable device of air as claimed in claim 3, which is characterized in that further include:
First high pressure air flue, is connected between the gas source and the supercharger control valve,
Second high pressure air flue is connected between the supercharger control valve and the charge and discharge gas control valve；
Third high pressure air flue is connected to air inlet one end of the charge and discharge gas control valve Yu the air flue distributor；
Multiple connecting pipes are connected to the other end of the multiple discharge control valve Yu the hub motor shell air flue
Between.
6. a kind of control method of Electric Motor Wheel tire automatic inflatable device of air, which comprises the steps of:
Step 1: environment temperature, pavement temperature and road gradient being monitored by sensor, tire is monitored by device for monitoring tyre pressure
Real-time tire pressure, and real-time tire pressure is transmitted to control unit；
Step 2: tire pressure standard of the real-time tire pressure in control unit is compared:
If real-time tire pressure is less than tire pressure standard, control unit selects following modes of inflation:
Control unit controls the air inlet station conducting of supercharger control valve and charge and discharge gas control valve, while controlling and the insufficient wheel of tire pressure
The corresponding discharge control valve of tire is opened, and high pressure gas is successively from gas source by supercharger control valve, charge and discharge gas control valve, air flue distribution
Device, discharge control valve, hub motor shell air flue and wheel rim air flue, are finally connected to tire；
If real-time tire pressure is greater than tire pressure standard, control unit selects following air bleeding mode:
Control unit controls supercharger control valve and closes, the outlet station conducting of control charge and discharge gas control valve, while control and tire pressure
The corresponding discharge control valve of excessively high tire is opened, and gas is flowed out out of tire, successively passes through wheel rim air flue, hub motor shell
After air flue, discharge control valve and air flue distributor, it is discharged into atmosphere by charge and discharge gas control valve.
7. the control method of Electric Motor Wheel tire automatic inflatable device of air as claimed in claim 6, which is characterized in that the tire pressure
Standard is divided into Three models according to different road conditions:
When the road conditions are highway mode: tire pressure standard is 600KPa；
When the road conditions are off-road mode: tire pressure standard is 450KPa；
When the road conditions are soft mode: tire pressure standard is 300KPa.
8. the control method of Electric Motor Wheel tire automatic inflatable device of air as claimed in claim 6, which is characterized in that filled described
Under gas mode, the discharge control valve valve opening meets following condition:
If 75%Pw< Pv< PwWhen, ov=40%；
If 50%Pw≤Pv< 75%PwWhen, ov=75%；
If Pv≤ 50%PwWhen, ov=100%；
Wherein, PvFor real-time tire pressure, PwFor tire pressure standard, OV is discharge control valve valve opening；
Under air bleeding mode, discharge control valve valve opening and meet following condition:
If Pw< Pv< 125%PwWhen, ov=40%；
If Pv>=150%PwWhen, ov=75%；
If 125%Pw≤Pv< 150%PwWhen, ov=100%；
Wherein, PvFor real-time tire pressure, PwFor tire pressure standard, OV is discharge control valve valve opening.
9. the control method of Electric Motor Wheel tire automatic inflatable device of air as claimed in claim 6, which is characterized in that when car weight is full
Foot: when 0 < m < 6000kg, tire pressure meets following condition:
When speed meets 0 < V≤80km/h, tire pressure meets:
Wherein, PvFor the tire pressure of Electric Motor Wheel tire, β is beam angle in the front-wheel of Electric Motor Wheel tire, and ξ is road gradient, and m is vehicle
Weight, g are acceleration of gravity, frFor the coefficient of friction of vehicle tyre and ground, fvFor the rolling resistance of vehicle tyre, T0For ring
Border temperature, T1For pavement temperature, K is weight coefficient, and V is Vehicle Speed；
Wherein, road gradient meets:
Wherein, τ is the angle of vehicle running surface and horizontal plane；
When speed meets V > 80km/h, tire pressure meets:
Wherein, PvFor the tire pressure of Electric Motor Wheel tire, β is beam angle in the front-wheel of Electric Motor Wheel tire, and ξ is road gradient, and m is vehicle
Weight, g are acceleration of gravity, frFor the coefficient of friction of vehicle tyre and ground, fvFor the rolling resistance of vehicle tyre, τ is vehicle
The angle of track and horizontal plane, T0For environment temperature, T1For pavement temperature, K is weight coefficient, and V is Vehicle Speed；
When car weight meets 6000kg≤m < 20000kg, tire pressure meets:
Wherein, PvFor the tire pressure of Electric Motor Wheel tire, β is beam angle in the front-wheel of Electric Motor Wheel tire, and ξ is road gradient, and m is vehicle
Weight, g are acceleration of gravity, frFor the coefficient of friction of vehicle tyre and ground, fvFor the rolling resistance of vehicle tyre, T0For ring
Border temperature, T1For pavement temperature, K is weight coefficient, SfFor front face area of automobile；And
When car weight meets m >=20000kg, tire pressure meets:
Wherein, PvFor the tire pressure of Electric Motor Wheel tire, β is beam angle in the front-wheel of Electric Motor Wheel tire, and ξ is road gradient, and m is vehicle
Weight, g are acceleration of gravity, frFor the coefficient of friction of vehicle tyre and ground, fvFor the rolling resistance of vehicle tyre, τ is vehicle
The angle of track and horizontal plane, T0For environment temperature, T1For pavement temperature, K is weight coefficient, SfFor front face area of automobile.
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| CN201910466002.2A CN110217056A (en) | 2019-05-31 | 2019-05-31 | A kind of Electric Motor Wheel tire automatic inflatable device of air and its control method |
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| CN201910466002.2A CN110217056A (en) | 2019-05-31 | 2019-05-31 | A kind of Electric Motor Wheel tire automatic inflatable device of air and its control method |
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| CN111572292A (en) * | 2020-04-30 | 2020-08-25 | 汉腾新能源汽车科技有限公司 | Intelligent automobile tire pressure regulating system and method thereof |
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