CN107719034A - Air pressure of automobile tire method of self compensation and system - Google Patents
Air pressure of automobile tire method of self compensation and system Download PDFInfo
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- CN107719034A CN107719034A CN201710993740.3A CN201710993740A CN107719034A CN 107719034 A CN107719034 A CN 107719034A CN 201710993740 A CN201710993740 A CN 201710993740A CN 107719034 A CN107719034 A CN 107719034A
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- tire
- pressure
- control valve
- gas outlet
- tire pressure
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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
- B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
-
- 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
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Tires In General (AREA)
Abstract
The invention discloses a kind of air pressure of automobile tire method of self compensation and system, wherein, whether method includes detection tire pressure, is judged according to tire pressure tire in high pressure conditions or low-pressure state and automatic tyre inflating for low-pressure state and be automatically high pressure conditions the step of bleeding a tire.This method can be monitored in real time to the pressure of each tire of automobile, and the tire in high pressure conditions either low-pressure state can be deflated automatically or charge operation.Inflation/deflation is simple and easy not by environmental restrictions.The system detects the pressure of each tire by tyre pressure sensor in real time, is that each tire carries out inflation/deflation by tire pressure adjustment control device, controls tyre pressure sensor by tire pressure monitoring controller, while control tire pressure adjustment control device to work automatically.Whole system volume and weight is smaller, easy to use, is not take up interior space.
Description
Technical field
The present invention relates to automobile technical field, more particularly to a kind of air pressure of automobile tire method of self compensation and system.
Background technology
At present, as social progress, commercial car logistics transportation trans-regional over long distances turn into normality, whether vehicle tyre pressure
The normal important references index that can be driven safely as vehicle.Because auxiliary facility is with respect to imperfection, when vehicle tyre tire pressure
When power is insufficient or rapid air leakage occurs, driver usually can not find service point on-call maintenance or re-type, give vehicle to use
Make troubles；When tire pressure is too high, if driver does not have found, it may be blown out and asked due to long-time traveling generation
, severe compromise be present in topic.
At present, solution to the problems described above is to check vehicle tyre pressure by estimating or providing for oneself tire gauge, works as discovery
Tire pressure is too low or during gas leakage, typically by carrying out tyre inflating or tire patching in service point, or carries charger to wheel
Tire is inflated, and tire changing is carried out by changing spare tyre mode.
But during travelling, driver can not be monitored to vehicle tyre pressure situation in real time, when there is tire pressure mistake
During low or gas leakage, limited by environment, inflation is relatively difficult；Because charger volume and weight are larger, space-consuming is more,
It is inconvenient to carry.
The content of the invention
, can be to the wheel of automobile to solve the above problems the invention provides a kind of air pressure of automobile tire method of self compensation
Tire pressure is monitored in real time, can be automatically and quickly tire inflation/deflation.
Present invention also offers a kind of air pressure of automobile tire self-compensating system, the system bulk and weight are smaller, no
Take interior space.
The invention provides a kind of air pressure of automobile tire method of self compensation, including：
Step S1：Tire pressure monitoring controller control tyre pressure sensor detection tire pressure, and the tire pressure of collection is believed
Number send to tire pressure monitoring controller；
Step S2：Tire pressure monitoring controller judges whether tire pressure is less than first according to the tire pressure signal received
Setup pressure value, if so, then carrying out step S3；If it is not, then carry out step S4；
Step S3：The low-pressure state information of tire is sent to tire pressure adjustment control device, tire pressure and adjusted by tire pressure monitoring controller
Save controller and receive low-pressure state information, and tire is inflated；
Step S4：Judge whether tire pressure is higher than the second setup pressure value, if so, then carrying out step S5；
Step S5：The high pressure conditions information of tire is sent to tire pressure adjustment control device, tire pressure and adjusted by tire pressure monitoring controller
Save controller and receive high pressure conditions information, and tire is deflated.
Air pressure of automobile tire method of self compensation as described above, these, it is preferred to, step S3 also includes：Detect tire
Whether the reduction speed of pressure is more than setting speed, if so, then regulation speed reduces.
Air pressure of automobile tire method of self compensation as described above, these, it is preferred to, methods described also includes：Performing
Before step S3, tire pressure monitoring controller sends the low-pressure state information of tire to ECU, after ECU receives low-pressure state information
Engine speed is promoted to higher than the first setting speed, and engine driving inflating pump is inflated gas receiver.
Air pressure of automobile tire method of self compensation as described above, these, it is preferred to, methods described also includes：Step S3
Also including, the low-pressure state information of tire is sent to instrument desk, instrument desk and receives low-pressure state information by tire pressure monitoring controller,
And display of tyre hypotony information；
Step S5 also includes, and the high pressure conditions information of tire is sent to instrument desk, instrument desk and connect by tire pressure monitoring controller
Receive high pressure conditions information, and display of tyre hypertonia information.
Air pressure of automobile tire method of self compensation as described above, these, it is preferred to, in step S3, tire is filled
Gas specifically includes：
Main control chip in tire pressure monitoring controller control tire pressure adjustment control device exports high level, control to electromagnetism valve assembly
The air inlet of electromagnetism valve assembly processed turns on gas outlet, so that gas flows out from gas receiver, and is reached by electromagnetism valve assembly
In tire.
Air pressure of automobile tire method of self compensation as described above, these, it is preferred to, in step S5, tire is put
Gas specifically includes：
The main control chip of tire pressure monitoring controller control tire pressure adjustment control device exports high level, control control to control valve
The gas outlet of valve turns on exhaust outlet, so that gas is from the valve of the tire successively row of the gas outlet Jing Guo control valve and control valve
Gas port discharge is extraneous.
Present invention also offers a kind of air pressure of automobile tire self-compensating system, including：
Tyre pressure sensor；
Tire pressure monitoring controller, the tire pressure monitoring controller are carried out with the tyre pressure sensor by first communication module
Communication；
Tire pressure adjustment control device, the tire pressure adjustment control device are carried out with the tire pressure monitoring controller by CAN
Communication；
The tire pressure signal that the tire pressure monitoring controller is sent according to the tyre pressure sensor, the tire pressure is controlled to adjust
Section controller is that automobile tire is inflated or deflated.
Air pressure of automobile tire self-compensating system as described above, these, it is preferred to, the tire pressure adjustment control device includes
Main control chip, electromagnetism valve assembly, control valve, inflating pump and gas receiver；The air inlet of the control valve and the control valve go out
Gas port is in normal open state；
The main control chip is communicated with the tire pressure monitoring controller by CAN；The main control chip passes through
Pin controls the electromagnetism valve assembly and the control valve；
The gas outlet of the electromagnetism valve assembly and the air inlet of control valve connect, the air inlet of the electromagnetism valve assembly and institute
State the gas outlet connection of gas receiver；
The air inlet of the control valve is connected with the gas outlet of the electromagnetism valve assembly, the gas outlet of the control valve and wheel
The valve connection of tire, the exhaust outlet of the control valve lead to ambient atmosphere；
The gas outlet of the air inlet of the control valve and the control valve is in normal open state；The main control chip is to described
When control valve exports high level, the gas outlet of the control valve communicates with the exhaust outlet of the control valve；
The inflating pump is connected with the engine of automobile, the gas outlet of the inflating pump and the air inlet phase of the gas receiver
Even.
Air pressure of automobile tire self-compensating system as described above, these, it is preferred to, the tyre pressure sensor includes first
Sensor, second sensor, 3rd sensor and the 4th sensor；
The first sensor, second sensor, 3rd sensor and the 4th sensor are separately positioned on the left front of automobile
On tire, left rear tire, right front fire and right rear fire；
The electromagnetism valve assembly passes through the first pin, the second pin, three-prong and the 4th pin and the main control chip
Connection；The air inlet of the electromagnetism valve assembly includes the first air inlet, the second air inlet, the 3rd air inlet and the 4th air inlet,
The gas outlet of the electromagnetism valve assembly includes the first gas outlet, the second gas outlet, the 3rd gas outlet and the 4th gas outlet；
The control valve includes the first control valve, the second control valve, the 3rd control valve and the 4th control valve, first control
Valve, the second control valve, the 3rd control valve and the respective air inlet of the 4th control valve processed and respective gas outlet are in normal open state；
The air inlet of first control valve, the air inlet of the second control valve, the air inlet of the 3rd control valve and the 4th control
The air inlet of valve processed the first gas outlet with the electromagnetism valve assembly, the second gas outlet, the 3rd gas outlet and the 4th outlet respectively
Mouth connection；
The gas outlet of first control valve, the gas outlet of the second control valve, the gas outlet of the 3rd control valve and the 4th control
The gas outlet of valve processed respectively the charging connector with the left front tire of automobile, the charging connector of left rear tire, right front fire charging connector and
The charging connector connection of right rear fire；
The exhaust outlet of first control valve, the exhaust outlet of the second control valve, the exhaust outlet of the 3rd control valve and the 4th control
The exhaust outlet of valve processed each leads to ambient atmosphere.
Air pressure of automobile tire self-compensating system as described above, these, it is preferred to, the first communication module is wireless
Communication module.
Air pressure of automobile tire method of self compensation provided by the invention, the pressure of each tire of automobile can be supervised in real time
Control, and the tire in high pressure conditions or low-pressure state can be deflated or charge operation automatically.Inflation/deflation is not
It is simple and easy by environmental restrictions.
Air pressure of automobile tire self-compensating system provided by the invention, detect the pressure of each tire in real time by tyre pressure sensor
Power, it is that each tire carries out inflation/deflation by tire pressure adjustment control device, tyre pressure sensor is controlled by tire pressure monitoring controller, together
Time control, which is made base, presses adjustment control device to work automatically.Whole system volume and weight is smaller, easy to use, is not take up interior space.
Brief description of the drawings
Fig. 1 is the flow chart of air pressure of automobile tire method of self compensation provided in an embodiment of the present invention；
Fig. 2 is the structural representation of air pressure of automobile tire self-compensating system provided in an embodiment of the present invention；
Fig. 3 is the electrical control schematic of air pressure of automobile tire self-compensating system provided in an embodiment of the present invention.
Description of reference numerals：
The sensors of 1- first sensor 2- second sensor 3- 3rd sensors 4- the 4th
The control valves of 5- electromagnetism valve assembly 6- the first control valve the second control valves of 7- 8- the 3rd
The control valve 10- main control chip 11- inflating pump 12- gas receivers of 9- the 4th
13- check valve 14- ignition switch 15- tire pressure monitoring controller 16- instrument desks
17-ECU 18- controlling switches
Embodiment
Embodiments of the invention are described below in detail, the example of embodiment is shown in the drawings, wherein identical from beginning to end
Or similar label represents same or similar element or the element with same or like function.Retouched below with reference to accompanying drawing
The embodiment stated is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
As shown in figure 1, air pressure of automobile tire method of self compensation provided in an embodiment of the present invention, comprises the following steps, the step
Suddenly illustrated with reference to the system in accompanying drawing 2 and accompanying drawing 3.
Step S1：Tire pressure monitoring controller 15 controls tyre pressure sensor detection tire pressure, and by the tire pressure of collection
Signal is sent to tire pressure monitoring controller 15；It will be appreciated by persons skilled in the art that under automobile flameout state, detection wheel
Before tire pressure has little significance, therefore tire pressure monitoring controller 15 controls tyre pressure sensor detection tire pressure, automobile need to be detected
Fired state whether is in, namely confirms that ignition switch 14 is in ON shelves states, now controls tyre pressure sensor to detect tire again
Pressure.
Step S2：Whether tire pressure monitoring controller 15 judges tire pressure less than the according to the tire pressure signal received
One setup pressure value, if so, then carrying out step S3；If it is not, then carry out step S4.
It will be appreciated by persons skilled in the art that vehicle generally has multiple tires, by taking common vehicle as an example, it is mostly
Four wheels, respectively the near front wheel, left rear wheel, off-front wheel and off hind wheel, due to tire have it is multiple, then correspondingly, each
It is required to set a tyre pressure sensor on individual tire.
Tire pressure monitoring controller 15 also needs to judge that the tire pressure of specifically which tire is abnormal, specifically, judges
Tire pressure is the letter of the tyre pressure sensor of the acquisition transmission of tire pressure monitoring controller 15 tire pressure signal after low-pressure state
Breath, and according to the particular location of tire of the information of the tyre pressure sensor judgement in low-pressure state.Namely tire pressure monitoring control
Device 15 judges the tire pressure of specifically which tire exception according to the tyre pressure sensor for sending signal.
If it is determined that tire pressure is in low-pressure state, it is also necessary to the reduction speed of tire pressure is detected, in order to determine vapour
Whether wheel tire is in rapid air leakage state.Specifically, whether setting can be more than by detecting the reduction speed of tire pressure
Speed, if so, then judging that automobile tire is in rapid air leakage state.Now, it is also necessary to which regulation speed reduces, and to avoid danger
Danger, regulation speed reduce, can be by controlling the output torque of engine to realize in the future.Above-mentioned setting speed is preferably 30Kpa/
Min, namely as tire pressure reduction 30Kpa per minute and the above, it is determined that automobile tire is in rapid air leakage state, now
Output torque is reduced, so as to reduce speed.
Under normal circumstances, tire pressure should be in the range of reference pressure value, in a preferred embodiment, normal pressure
Value is preferably 900 ± 30Kpa, and when tire pressure is less than the 75% of reference pressure value, then judge that tire pressure is in low pressure
State, namely 75% that the first setup pressure value is reference pressure value.
Step S3：Tire pressure monitoring controller 15 sends the low-pressure state information of tire to tire pressure adjustment control device, tire pressure
Adjustment control device receives low-pressure state information, and tire is inflated.It will be appreciated by persons skilled in the art that to wheel
, it is necessary to ensure there is enough gas in gas receiver 12 before tire is inflated, therefore, tire pressure monitoring controller 15 is needed tire
Low-pressure state information send to ECU17, ECU17 is received to be promoted to engine speed after low-pressure state information and set higher than first
Determine rotating speed, first setting speed is preferably 1000r/min, and engine driving inflating pump 11 is inflated gas receiver 12.
It is specially to the process that tire is inflated：Tire pressure monitoring controller 15 controls the master control in tire pressure adjustment control device
Chip 10 exports high level to electromagnetism valve assembly 5, and the air inlet of control electromagnetism valve assembly 5 turns on gas outlet；So that gas from
Flow out in gas receiver 12, and reached by electromagnetism valve assembly 5 in tire.
Step S4：Judge whether tire pressure is higher than the second setup pressure value, if so, then carrying out step S5.When wheel tire pressure
When power is higher than reference pressure value 25%, then judge that tire pressure is in high pressure conditions, namely the second setup pressure value is standard pressure
The 125% of force value.
It will be appreciated by persons skilled in the art that identical with low-pressure state, vehicle generally has multiple tires, with common
Vehicle exemplified by, mostly four wheels, respectively the near front wheel, left rear wheel, off-front wheel and off hind wheel, due to tire have it is multiple, that
Correspondingly, it is required to set a tyre pressure sensor on each tire.
Step S5：Tire pressure monitoring controller 15 sends the high pressure conditions information of tire to tire pressure adjustment control device, tire pressure
Adjustment control device receives high pressure conditions information, and tire is deflated.The detailed process deflated to tire is：Tire pressure is supervised
Surveying controller 15 controls the main control chip 10 of tire pressure adjustment control device to export high level to control valve, controls the gas outlet of control valve
Turned on exhaust outlet, so that gas is from the valve of tire, the discharge of the exhaust outlet of the gas outlet Jing Guo control valve and control valve is outer successively
Boundary.
Further, method also includes：Step S3 also includes, and tire pressure monitoring controller 15 is by the low-pressure state information of tire
Send to instrument desk 16, instrument desk 16 receives low-pressure state information, and display of tyre hypotony information.Namely work as tire pressure
During in low-pressure state, prompted on instrument desk 16.Specifically, indicator lamp can be controlled often bright to prompt low-pressure state；
And when automobile tire is in the rapid air leakage state in low-pressure state, then indicator lamp flicker can be controlled to prompt rapid air leakage
State.
Step S5 also sends the high pressure conditions information of tire to instrument desk 16, instrument desk including tire pressure monitoring controller 15
16 receive high pressure conditions information, and display of tyre hypertonia information.Namely when tire pressure is in high pressure conditions, in instrument
Prompted on platform 16.Specifically, indicator lamp Chang Liang can be controlled, while controls buzzer warning to prompt high pressure conditions.
Certainly it will be appreciated by persons skilled in the art that high pressure conditions and low-pressure state can also be entered using other modes
Row prompting, such as low-pressure state are prompted using indicator lamp flicker and buzzer warning, and high pressure conditions use indicator lamp Chang Liang
Deng alerting pattern.
The embodiment of the present invention additionally provides a kind of air pressure of automobile tire self-compensating system, including tyre pressure sensor, tire pressure prison
Survey controller 15 and tire pressure adjustment control device.It will be appreciated by persons skilled in the art that tire pressure monitoring controller 15 and tire pressure
Adjustment control device can be arranged on vehicle frame, and tyre pressure sensor need to be arranged on tire.
Wherein, tire pressure monitoring controller 15 is communicated with tyre pressure sensor by first communication module, it is preferable that this
One communication module is wireless communication module, specifically can on tyre pressure sensor integrated RF transmitter, low frequency reception circuit with
And antenna, and it is also provided with antenna on tire pressure monitoring controller 15.Preferably, tyre pressure sensor passes through lithium battery power supply.
Tire pressure adjustment control device is communicated with tire pressure monitoring controller 15 by CAN；Tire pressure monitoring controller 15
The tire pressure signal sent according to tyre pressure sensor, tire pressure adjustment control device is controlled to be inflated or put for automobile tire
Gas.
Specifically, tire pressure adjustment control device includes main control chip 10, electromagnetism valve assembly 5, control valve, inflating pump 11 and gas storage
Cylinder 12；The air inlet of control valve and the gas outlet of control valve are in normal open state.
Main control chip 10 is communicated with tire pressure monitoring controller 15 by CAN；Main control chip 10 passes through pin control
Electromagnetism valve assembly 5 processed and control valve；The gas outlet of electromagnetism valve assembly 5 and the air inlet of control valve connect, and electromagnetism valve assembly 5 enters
Gas port is connected with the gas outlet of gas receiver 12.
The air inlet of control valve is connected with the gas outlet of electromagnetism valve assembly 5, and the gas outlet of control valve and the valve of tire connect
Connect, the exhaust outlet of control valve leads to ambient atmosphere；The air inlet of control valve and the gas outlet of control valve are in normal open state；Master control
When chip 10 exports high level to control valve, the gas outlet of control valve communicates with the exhaust outlet of control valve.
Inflating pump 11 is connected with the engine of automobile, and the gas outlet of inflating pump 11 is connected with the air inlet of gas receiver 12.
Specifically, because vehicle typically has multiple wheels, the tire pressure of each wheel is required to detect, had with vehicle
Exemplified by four tires, four tires are the near front wheel, left rear wheel, off-front wheel and off hind wheel respectively.
Therefore, tyre pressure sensor includes first sensor 1, second sensor 2, the sensor 4 of 3rd sensor 3 and the 4th；
First sensor 1, second sensor 2, the sensor 4 of 3rd sensor 3 and the 4th are separately positioned on the left front tire, left back of automobile
On tire, right front fire and right rear fire.
Electromagnetism valve assembly 5 passes through the first pin K16, the second pin K17, three-prong K18 and the 4th pin K19 and master control
Chip 10 connects；The air inlet of electromagnetism valve assembly 5 includes the first air inlet, the second air inlet, the 3rd air inlet and the 4th air inlet
Mouthful, the gas outlet of electromagnetism valve assembly 5 includes the first gas outlet, the second gas outlet, the 3rd gas outlet and the 4th gas outlet.
Control valve includes the first control valve 6, the second control valve 7, the 3rd control valve 8 and the 4th control valve 9, the first control valve
6th, the second control valve 7, the 3rd control valve 8 and 9 respective air inlet of the 4th control valve and respective gas outlet are in normal open state.
When tire is inflated, the air inlet of control valve and the gas outlet of control valve connect；When tire is deflated, the outlet of control valve
Mouth is connected with the exhaust outlet of control valve.
The air inlet of first control valve 6, the air inlet of the second control valve 7, the air inlet of the 3rd control valve 8 and the 4th control
The first gas outlet with electromagnetism valve assembly 5, the second gas outlet, the 3rd gas outlet and the 4th gas outlet connect the air inlet of valve 9 respectively
Connect；The gas outlet of first control valve 6, the gas outlet of the second control valve 7, the gas outlet of the 3rd control valve 8 and the 4th control valve 9
The charging connector and off hind wheel of the gas outlet charging connector with the left front tire of automobile, the charging connector of left rear tire, right front fire respectively
The charging connector connection of tire；The exhaust outlet of first control valve 6, the exhaust outlet of the second control valve 7, the 3rd control valve 8 exhaust outlet and
The exhaust outlet of 4th control valve 9 each leads to ambient atmosphere.
First control valve 6 is connected on main control chip 10 by pin K8 and K9, the second control valve 7 by pin K10 and
K11 is connected on main control chip 10, and the 3rd control valve 8 is connected on main control chip 10 by pin K12 and K13, the 4th control
Valve 9 is connected on main control chip 10 by pin K14 and K15.
When specifically used, when main control chip 10 is to the first pin K16 output high level, the first air inlet and the first gas outlet
Conducting, gas flow out from the gas outlet of gas receiver 12, successively by the first air inlet and the first gas outlet, and reach a left side for automobile
In front tyre.
Main control chip 10 to the second pin K17 export high level when, the second air inlet turns on the second gas outlet, gas from
The gas outlet outflow of gas receiver 12, successively by the second air inlet and the second gas outlet, and is reached in the left rear tire of automobile.
Main control chip 10 to three-prong K18 export high level when, the 3rd air inlet turns on the 3rd gas outlet, gas from
The gas outlet outflow of gas receiver 12, successively by the 3rd air inlet and the 3rd gas outlet, and is reached in the right front fire of automobile.
Main control chip 10 to the 4th pin K19 export high level when, the 4th air inlet turns on the 4th gas outlet, gas from
The gas outlet outflow of gas receiver 12, successively by the 4th air inlet and the 4th gas outlet, and is reached in the right rear fire of automobile.
When main control chip 10 is to pin K8 output high level, the gas outlet of the first control valve 6 and exhaust outlet conducting；Master control core
When piece 10 is to pin K10 output high level, the gas outlet of the second control valve 7 and exhaust outlet conducting；Main control chip 10 is to pin K12
When exporting high level, the gas outlet of the 3rd control valve 8 and exhaust outlet conducting；When main control chip 10 is to pin K14 output high level,
The gas outlet of 4th control valve 9 and exhaust outlet conducting.
In a preferred embodiment, tire pressure adjustment control device also includes check valve 13, check valve 13 by pin K21 and
K22 is connected with main control chip 10, check valve 13 is connected between electromagnetism valve assembly 5 and gas receiver 12, namely check valve 13 enters
Gas port is connected with the gas outlet of gas receiver 12, and the gas outlet of check valve 13 is connected with the air inlet of electromagnetism valve assembly 5.Main control chip
10 to pin K21 export high level when, the air inlet of check valve 13 and gas outlet conducting.
Check valve 13 is set, in order to which the gas in gas receiver 12 is only capable of one-way flow into electromagnetism valve assembly 5, and can not
It is circulated to from electromagnetism valve assembly 5 in gas receiver 12.Prevent air pressure of automobile tire self-compensating system leak air problem when to other
Systematic influence.
In a preferred embodiment, in addition to controlling switch 18, controlling switch 18 pass through CAN and tire pressure monitoring control
Device and main control chip processed are communicated, and operating personnel can be manipulated by switch 18 to adjust the gas outlet of control valve with entering
Gas port turns on, or gas outlet turns on exhaust outlet.Specifically, under usual condition, control valve air gate is in air inlet
Normal open state, controlling switch 18 is stirred, gas outlet can be switched to be turned on exhaust outlet control valve.
There is low-pressure state below with the left front tire of automobile to be described in detail：
When tire pressure monitoring controller 15 detects that ignition switch 14 is in ON shelves, control first sensor 1 to the 4th senses
Device 4 detects the pressure of four tires respectively, and four sensors send the signal of collection to tire pressure monitoring controller by antenna
15, the signal that tire pressure monitoring controller 15 is sent according to four sensors of reception, detect the letter that first sensor 1 is sent
In number, the tire pressure value of left front tire is prompted to be less than 900KpaX0.75=675Kpa.
Now, the tire pressure of left front tire is in the letter of low-pressure state by CAN by tire pressure monitoring controller 15
Breath is broadcast to each node.
When ECU17, which receives left front tire, is in low-pressure state, engine speed is judged first, if engine
Rotating speed is less than 1000r/min, then by controlling distributive value that the rotating speed of engine is promoted into more than 1000r/min.Due to inflating
Pump 11 is connected with engine by two V-belts or gear, and engine rotation drives the bent axle of inflating pump 11, inflating pump 11
Bent axle drives the piston compresses air lift gas pressure of inflating pump 11, and the gas got imports gas receiver 12 by tracheae.Cause
This, engine speed is higher, and the exhaust efficiency of inflating pump 11 is higher, when engine speed is promoted into more than 1000r/min, beats
Air pump 11 can reach more than 10Mpa to the air pressure inflated in gas receiver 12, so as to be ready for tyre inflating.
When tire pressure adjustment control device, which receives left front tire, is in low-pressure state, tire pressure monitoring controller 15 controls master control
Chip 10 gives pin K21 output high level, so as to which the air inlet of check valve 13 and gas outlet be turned on；Main control chip 10 is given simultaneously
First pin K16 exports high level, so as to which the air inlet of the first magnetic valve and gas outlet be turned on；Under normal circumstances, the first control
The air inlet of valve 6 processed and gas outlet are in normal open state.Now the gas in gas receiver 12 is successively by check valve 13, magnetic valve
The first magnetic valve in assembly 5, and the first control valve 6, are eventually entered into left front tire.When tire pressure monitoring controller 15 detects
When returning to 900 ± 30Kpa to the pressure of left front tire, control main control chip 10 powers off to check valve 13 and electromagnetism valve assembly 5,
The air inlet of check valve 13 and gas outlet disconnect, and the air inlet of the first magnetic valve and gas outlet also disconnect, so as to stop to left front
Tire is inflated.
When instrument desk 16, which receives left front tire, is in low-pressure state, indicator lamp Chang Liang corresponding to left front tire is controlled,
So as to reach the purpose for reminding driver's left front tire to be in low-pressure state information.
It is described in detail below by taking the right rear fire rapid air leakage of automobile as an example：
When tire pressure monitoring controller 15 detects that ignition switch 14 is in ON shelves, control first sensor 1 to the 4th senses
Device 4 detects the pressure of four tires respectively, and four sensors send the signal of collection to tire pressure monitoring controller by antenna
15, the signal that tire pressure monitoring controller 15 is sent according to four sensors are received, detect the signal that the 4th sensor 4 is sent
In, prompt the tire pressure value of right rear fire to be less than 900KpaX0.75=675Kpa.Tire pressure monitoring controller 15 also detects simultaneously
To tire pressure reduction more than the 30Kpa per minute of right rear fire.
Now, the tire pressure of right rear fire is in rapid air leakage state by tire pressure monitoring controller 15 by CAN
Information be broadcast to each node.
When ECU17, which receives right rear fire, is in rapid air leakage state, engine speed is judged first, if hair
Motivation rotating speed is less than 1000r/min, then by controlling distributive value that the rotating speed of engine is promoted into more than 1000r/min.Due to
Inflating pump 11 is connected with engine by two V-belts or gear, and engine rotation drives the bent axle of inflating pump 11, inflating pump
The piston compresses air lift gas pressure of 11 bent axle driving inflating pump 11, the gas got import gas receiver by tracheae
12.Therefore, engine speed is higher, and the exhaust efficiency of inflating pump 11 is higher, and engine speed is promoted into more than 1000r/min
When, inflating pump 11 can reach more than 10Mpa to the air pressure inflated in gas receiver 12, so as to be ready for tyre inflating.
Simultaneously in order to avoid causing danger, ECU17 also needs to control the output torque of engine to reduce, so as to reduce speed.
When tire pressure adjustment control device, which receives right rear fire, is in rapid air leakage state, main control chip 10 gives pin K21
High level is exported, so as to which the air inlet of check valve 13 and gas outlet be turned on；Main control chip 10 exports to the 4th pin K19 simultaneously
High level, so as to which the air inlet of the 4th magnetic valve and gas outlet be turned on；Under normal circumstances, the air inlet of the 4th control valve 9 and
Gas outlet is in normal open state；Now the gas in gas receiver 12 is successively by the 4th electricity in check valve 13, electromagnetism valve assembly 5
Magnet valve, and the 4th control valve 9, are eventually entered into right rear fire.When tire pressure monitoring controller 15 detects the pressure of right rear fire
When power returns to 900 ± 30Kpa, control main control chip 10 powers off to the magnetic valve of check valve 13 and the 4th, the air inlet of check valve 13
Mouth and gas outlet disconnect, and the air inlet of the 4th magnetic valve and gas outlet also disconnect, so as to stop that right rear fire is inflated.
When instrument desk 16, which receives right rear fire, is in rapid air leakage state, control indicator lamp corresponding to right rear fire normal
Flicker, so as to reach the purpose for reminding driver's right rear fire to be in rapid air leakage status information.
It is described in detail below so that the right front fire of automobile is in high pressure conditions as an example：
When tire pressure monitoring controller 15 detects that ignition switch 14 is in ON shelves, control first sensor 1 to the 4th senses
Device 4 detects the pressure of four tires respectively, and four sensors send the signal of collection to tire pressure monitoring controller by antenna
15, the signal that tire pressure monitoring controller 15 is sent according to four sensors are received, detect the signal that 3rd sensor 3 is sent
In, prompt the tire pressure value of right front fire to be higher than 900KpaX1.25=1125Kpa.
Now, the tire pressure of right front fire is in the letter of high pressure conditions by CAN by tire pressure monitoring controller 15
Breath is broadcast to each node.
When tire pressure monitoring controller 15, which receives right front fire, is in the information of high pressure conditions, tire pressure monitoring controller 15
Main control chip 10 is controlled to give pin K12 output high level, so as to control the gas outlet of the 3rd control valve 8 and exhaust outlet to turn on.This
When right front fire in gas the external world is discharged to by the exhaust outlet of the first control valve 6.
If tire pressure monitoring controller 15 detects that the air pressure of right front fire returns to 900 ± 30Kpa, tire pressure monitoring control
The main control chip 10 of device 15 stops powering to the 3rd control valve 8, and the gas outlet of the 3rd control valve 8 and exhaust outlet disconnect.
When the tire pressure that instrument desk 16 receives right front fire is in high pressure conditions information, control right front fire is corresponding
Indicator lamp Chang Liang, and buzzer warning is controlled simultaneously, so as to reach the mesh that prompting driver's right front fire is in high pressure conditions
's.
, can be with addition, it is necessary to, it is emphasized that if being detected simultaneously by multiple tires is in low-pressure state or high pressure conditions
Multiple tires are inflated or bleed air operation simultaneously.
Air pressure of automobile tire method of self compensation provided in an embodiment of the present invention, the tire pressure of automobile can be carried out real-time
Monitoring, it is automatic and quick for tire progress inflation/deflation when low-pressure state or high pressure conditions occurs in automobile tire.
Air pressure of automobile tire self-compensating system provided in an embodiment of the present invention, is equipped with car, and volume and weight is smaller,
It is not take up interior space.
Construction, feature and the action effect of the present invention is described in detail according to the embodiment shown in schema above, the above is only
For presently preferred embodiments of the present invention, but the present invention is not to limit practical range, every conception institute according to the present invention shown in drawing
The change of work, or the equivalent embodiment of equivalent variations is revised as, all should when still without departing from specification and illustrating covered spirit
Within the scope of the present invention.
Claims (10)
- A kind of 1. air pressure of automobile tire method of self compensation, it is characterised in that including：Step S1：Tire pressure monitoring controller control tyre pressure sensor detection tire pressure, and the tire pressure signal of collection is sent out Deliver to tire pressure monitoring controller；Step S2：Whether tire pressure monitoring controller judges tire pressure less than the first setting according to the tire pressure signal received Pressure value, if so, then carrying out step S3；If it is not, then carry out step S4；Step S3：Tire pressure monitoring controller sends the low-pressure state information of tire to tire pressure adjustment control device, tire pressure regulation control Device processed receives low-pressure state information, and tire is inflated；Step S4：Judge whether tire pressure is higher than the second setup pressure value, if so, then carrying out step S5；Step S5：Tire pressure monitoring controller sends the high pressure conditions information of tire to tire pressure adjustment control device, tire pressure regulation control Device processed receives high pressure conditions information, and tire is deflated.
- 2. air pressure of automobile tire method of self compensation according to claim 1, it is characterised in that step S3 also includes：Detection Whether the reduction speed of tire pressure is more than setting speed, if so, then regulation speed reduces.
- 3. air pressure of automobile tire method of self compensation according to claim 1, it is characterised in that methods described also includes： Before performing step S3, tire pressure monitoring controller sends the low-pressure state information of tire to ECU, and ECU receives low-pressure state letter Engine speed is promoted to higher than the first setting speed after breath, and engine driving inflating pump is inflated gas receiver.
- 4. air pressure of automobile tire method of self compensation according to claim 1, it is characterised in that methods described also includes：Step Rapid S3 also includes, and the low-pressure state information of tire is sent to instrument desk, instrument desk and receives low-pressure state by tire pressure monitoring controller Information, and display of tyre hypotony information；Step S5 also includes, and tire pressure monitoring controller sends the high pressure conditions information of tire to be received high to instrument desk, instrument desk Pressure condition information, and display of tyre hypertonia information.
- 5. air pressure of automobile tire method of self compensation according to claim 1, it is characterised in that in step S3, enter to tire Row inflation specifically includes：Main control chip in tire pressure monitoring controller control tire pressure adjustment control device exports high level, control electricity to electromagnetism valve assembly The air inlet of magnet valve assembly turns on gas outlet, so that gas flows out from gas receiver, and reaches tire by electromagnetism valve assembly In.
- 6. air pressure of automobile tire method of self compensation according to claim 1, it is characterised in that in step S5, enter to tire Row deflation specifically includes：The main control chip of tire pressure monitoring controller control tire pressure adjustment control device exports high level to control valve, controls control valve Gas outlet turns on exhaust outlet, so that gas is from the valve of the tire successively exhaust outlet of the gas outlet Jing Guo control valve and control valve Discharge is extraneous.
- A kind of 7. air pressure of automobile tire self-compensating system, it is characterised in that including：Tyre pressure sensor；Tire pressure monitoring controller, the tire pressure monitoring controller are led to the tyre pressure sensor by first communication module News；Tire pressure adjustment control device, the tire pressure adjustment control device are communicated with the tire pressure monitoring controller by CAN；The tire pressure signal that the tire pressure monitoring controller is sent according to the tyre pressure sensor, control the tire pressure regulation control Device processed is that automobile tire is inflated or deflated.
- 8. air pressure of automobile tire self-compensating system according to claim 7, it is characterised in that the tire pressure adjustment control device Including main control chip, electromagnetism valve assembly, control valve, inflating pump and gas receiver；The air inlet of the control valve and the control valve Gas outlet be in normal open state；The main control chip is communicated with the tire pressure monitoring controller by CAN；The main control chip passes through pin Control the electromagnetism valve assembly and the control valve；The gas outlet of the electromagnetism valve assembly and the air inlet of control valve connect, air inlet and the storage of the electromagnetism valve assembly The gas outlet connection of inflator；The air inlet of the control valve is connected with the gas outlet of the electromagnetism valve assembly, the gas outlet of the control valve and tire Valve connects, and the exhaust outlet of the control valve leads to ambient atmosphere；The gas outlet of the air inlet of the control valve and the control valve is in normal open state；The main control chip gives the control When valve exports high level, the gas outlet of the control valve communicates with the exhaust outlet of the control valve；The inflating pump is connected with the engine of automobile, and the gas outlet of the inflating pump is connected with the air inlet of the gas receiver.
- 9. air pressure of automobile tire self-compensating system according to claim 8, it is characterised in that the tyre pressure sensor includes First sensor, second sensor, 3rd sensor and the 4th sensor；The first sensor, second sensor, 3rd sensor and the 4th sensor be separately positioned on automobile left front tire, On left rear tire, right front fire and right rear fire；The electromagnetism valve assembly is connected by the first pin, the second pin, three-prong and the 4th pin with the main control chip； The air inlet of the electromagnetism valve assembly includes the first air inlet, the second air inlet, the 3rd air inlet and the 4th air inlet, the electricity The gas outlet of magnet valve assembly includes the first gas outlet, the second gas outlet, the 3rd gas outlet and the 4th gas outlet；The control valve includes the first control valve, the second control valve, the 3rd control valve and the 4th control valve, first control Valve, the second control valve, the 3rd control valve and the respective air inlet of the 4th control valve and respective gas outlet are in normal open state；The air inlet of first control valve, the air inlet of the second control valve, the air inlet and the 4th control valve of the 3rd control valve Air inlet the first gas outlet with the electromagnetism valve assembly, the second gas outlet, the 3rd gas outlet and the 4th gas outlet connect respectively Connect；The gas outlet of first control valve, the gas outlet of the second control valve, the gas outlet of the 3rd control valve and the 4th control valve Gas outlet respectively behind the charging connector with the left front tire of automobile, the charging connector of left rear tire, the charging connector of right front fire and the right side The charging connector connection of tire；The exhaust outlet of first control valve, the exhaust outlet of the second control valve, the exhaust outlet and the 4th control valve of the 3rd control valve Exhaust outlet each lead to ambient atmosphere.
- 10. the air pressure of automobile tire self-compensating system according to any one of claim 7 to 9, it is characterised in that described One communication module is wireless communication module.
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| CN201710993740.3A CN107719034A (en) | 2017-10-23 | 2017-10-23 | Air pressure of automobile tire method of self compensation and system |
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| CN201710993740.3A CN107719034A (en) | 2017-10-23 | 2017-10-23 | Air pressure of automobile tire method of self compensation and system |
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| CN107719034A true CN107719034A (en) | 2018-02-23 |
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| CN201710993740.3A Pending CN107719034A (en) | 2017-10-23 | 2017-10-23 | Air pressure of automobile tire method of self compensation and system |
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| CN108545060A (en) * | 2018-06-12 | 2018-09-18 | 镇江神行太保科技有限公司 | A kind of automatic tire inflation system for capableing of remote monitoring |
| CN109203878A (en) * | 2018-11-12 | 2019-01-15 | 深圳市道通科技股份有限公司 | A kind of tire pressure monitoring system receiver, tire pressure monitoring system |
| CN109808426A (en) * | 2019-03-25 | 2019-05-28 | 宋岭林 | A kind of vehicle automatic dynamic tire pressure regulating system |
| CN110509727A (en) * | 2018-05-22 | 2019-11-29 | 烟台汽车工程职业学院 | A kind of tire control system automatically adjusting attachment coefficient |
| CN113108980A (en) * | 2021-05-10 | 2021-07-13 | 燕山大学 | Tire cooling device and method for keeping dynamic balance of tire pressure |
| CN113524989A (en) * | 2021-08-11 | 2021-10-22 | 深圳市其利天下技术开发有限公司 | Tire pressure information acquisition equipment and operation system thereof |
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Application publication date: 20180223 |