CN103770581B - Vehicle tire pressure control apparatus intelligent control system - Google Patents

Abstract

A kind of vehicle tire pressure control apparatus of the present invention intelligent control system, relate to a kind of autonomous cruise speed system, this intelligent control system comprises control center's module and respectively with the parameter adapting module of control center's model calling, air pump operational module, signal parameter display module, temperature detecting module, RFID signal transceiver module, to be connected with control center module by RFID signal transceiver module four pressure of tire detection control modules.Can the tire pressure of Intelligent adjustment automobile by this control system, make vehicle tire pressure be in optimum regime, effectively can increase the full peace of automobile, reduce the generation of traffic accident, it is high that the present invention has control accuracy, the advantage of good reliability.

Description

Intelligent Control System of Automobile Tire Pressure Regulating Device

technical field

The invention relates to an intelligent control system, in particular to an intelligent control system for an automobile tire pressure regulating device.

Background technique

With the rapid development of social economy, cars, as a means of transportation, more and more enter people's families, followed by a great increase in the occurrence of traffic accidents, and the occurrence of many accidents in these traffic accidents is related to There is a close relationship between tire pressure, but now no matter whether it is a high-end car or an ordinary family car, there is no device for automatically adjusting the tire pressure of the car, let alone intelligent adjustment. Now some high-end cars are equipped with a tire pressure monitoring device, but the tire pressure of the car Pressure adjustment is still done manually, and it can only be done when the car is static. When the car is in motion, the following situations occur, such as the tire is not seriously damaged, but the tire pressure of the car is insufficient and cannot be replaced at the same time. Tires or repairs, or when the car is in danger of a rapid drop in tire pressure, the existing technology cannot solve the problem. The patent number is CN200820083468.1, although it can also adjust the tire pressure to a certain extent on a car in a moving state. , but this patent needs to punch holes in the original structure of the car, especially the main drive shaft of the car, which is not allowed under normal circumstances, and it does not have intelligent tire pressure detection, and the tire pressure is judged by experience in sports , and then manually press the air pump to adjust the tire pressure. It can only pressurize, but not decompress, and does not meet the needs of the market. Therefore, it is necessary to invent a car tire pressure adjustment device and an intelligent control system for controlling this device.

Contents of the invention

The purpose of the present invention is to provide an intelligent control system for automobile tire pressure regulating devices that can automatically adjust the tire pressure of the automobile according to changes in external weather and road conditions under static and dynamic conditions, so that the tire pressure of the automobile is always at the optimal operating level. At the same time, it can increase the safety of the car to a certain extent and greatly reduce the occurrence of traffic accidents.

In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an intelligent control system of an automobile tire pressure regulating device, the automobile tire pressure regulating device controlled by the intelligent control system includes a double-head output air pump 1, and a double-head output air pump 1 connected Airpipe 2, connected with airpipe 2, respectively located in the first air path branch body I3 of the right rear wheel, in the second air path branch body II4 of the right front wheel, in the third air path branch body III5 of the left rear wheel, in the left front The fourth gas path branch IV6 of the wheel, the intelligent control system includes a control center module and a parameter modification module connected to the control center module, an air pump working module, a signal parameter display module, a temperature detection module, an RFID signal transceiver module, The four tire pressure detection control modules that the signal transceiver module is connected with the control center module. The four tire pressure detection control modules include the first air path branch tire pressure detection control module I located on the right rear wheel, the second air path branch tire pressure detection control module II located on the right front wheel, Tire pressure detection control module III of the third air path branch on the left rear wheel, tire pressure detection control module IV of the fourth air path branch on the left front wheel, tire pressure detection control module of the first air path branch I comprises a tire pressure detection circuit 1, an intelligent RFID chip CC2430I connected to the tire pressure detection circuit 1, a micro-shaped antenna 1 connected to the intelligent RFID chip CC2430I, a battery undervoltage detection and alarm circuit ₁ , a stepper motor D1 driving circuit, and _The stepper motor D1 drives the circuit connected to the stepper motor _D1 . The tire pressure detection control module II of the second gas path branch includes a tire pressure detection circuit 2, an intelligent RFID chip CC2430II connected to the tire pressure detection circuit 1, a micro-shaped antenna 2 connected to the intelligent RFID chip CC2430II, and a battery undervoltage detection and alarm circuit _{2. The} stepper motor D2 drive circuit, the stepper motor D2 connected to the stepper motor _D2 drive circuit. The tire pressure detection control module III of the third gas path branch includes a tire pressure detection circuit 3, an intelligent RFID chip CC2430III connected to the tire pressure detection circuit 3, a micro-shaped antenna 3 connected to the intelligent RFID chip CC2430III, and a battery undervoltage detection and alarm circuit 3. The stepper motor _D3 drive circuit, the stepper motor _D3 connected to the stepper motor _D3 drive circuit. The tire pressure detection control module IV of the fourth gas path branch includes a tire pressure detection circuit 4, an intelligent RFID chip CC2430IV connected with the tire pressure detection circuit 4, a micro-shaped antenna 4 connected with the intelligent RFID chip CC2430IV, and a battery undervoltage detection alarm Circuit ₄ , the stepper motor D4 drive circuit, the stepper motor D4 connected to the stepper motor _D4 drive circuit _.

A further technical solution of the present invention is: the air pump working module includes an air pump drive circuit, a double-head output air pump connected to the air pump drive circuit, and the air pump drive circuit drives the double-head output air pump to work.

A further technical solution of the present invention is: the parameter modification module includes a manual parameter setting and modification circuit, the signal parameter display module includes a liquid crystal drive circuit, and a liquid crystal block for parameter display is connected to the liquid crystal drive circuit.

The further technical solution of the present invention is: the temperature detection module includes a temperature detection circuit for real-time temperature detection, the RFID signal transceiver module includes an RFID signal transceiver circuit and a miniature antenna 5, and the central control module communicates with four RFID signal transceiver modules. The tire pressure detection control module communicates.

Due to the above-mentioned structure, the intelligent control system of the automobile tire pressure regulating device of the present invention has the following beneficial effects:

(1) High control precision and good reliability

The intelligent control system of the automobile tire pressure regulating device of the present invention automatically controls the four air circuit sub-organizations by the control center module, and can intelligently adjust the tire pressure of each tire according to the parameter changes of weather and road conditions, without manual intervention, in real time Good performance and intelligent adjustment, so that the control precision is high and the reliability is good.

(2) It can effectively increase the safety of the car

The intelligent control system of the automobile tire pressure regulating device of the present invention can monitor the tire pressure in real time and automatically adjust the tire pressure due to the adoption of intelligent control, so that the tire pressure of the automobile can be kept at the optimum level at all times, thereby greatly reducing the occurrence of traffic accidents, and can Increase the safety of the car to a great extent.

The intelligent control system of the automobile tire pressure regulating device of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is a block diagram of the overall structure of the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 2 is a block diagram of the internal structure of the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 3 is a block diagram of the internal structure of four tire pressure detection control modules of the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 4 is the main flowchart of the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 5 is a tire pressure adjustment flow chart of the intelligent control system of the automobile tire pressure adjustment device of the present invention;

Fig. 6 is the judging and processing flow chart of the degree of tire pressure underpressure in the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 7 is the judging and processing flow chart of the tire pressure overpressure degree of the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 8 is an inflation flow chart of the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 9 is a gas deflation flow chart of the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 10 is a schematic diagram of the overall structure of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 11 is a schematic diagram of the first air path branch of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

12 is a schematic diagram of the tire inflation and deflation control mechanism of the first air path branch of the automobile tire pressure adjustment device controlled by the intelligent control system of the automobile tire pressure adjustment device of the present invention;

Fig. 13 is a schematic diagram of the groove-shaped ring structure in the air chamber forming mechanism of the first air path branch of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 14 is a structural schematic diagram of the arc-shaped sealing rubber plug in the air chamber forming mechanism of the first air path branch of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 15 is a schematic diagram of the inverted needle cylinder structure in the air chamber forming mechanism of the first air path branch of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 16 is a schematic diagram of the second air path branch of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

17 is a schematic diagram of the tire inflation and deflation control mechanism of the second air path branch of the automobile tire pressure adjustment device controlled by the intelligent control system of the automobile tire pressure adjustment device of the present invention;

Fig. 18 is a schematic diagram of the groove-shaped ring structure in the air chamber forming mechanism of the second air path branch of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 19 is a structural schematic diagram of the arc-shaped sealing rubber plug in the air chamber forming mechanism of the second air path branch of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 20 is a schematic diagram of the inverted needle cylinder structure in the air chamber forming mechanism of the second air path branch mechanism of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 21 is a schematic diagram of the third gas path branch of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 22 is a schematic diagram of the tire inflation and deflation control mechanism of the third air path branch of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 23 is a schematic diagram of the groove-shaped ring structure in the air chamber forming mechanism of the third air path branch of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 24 is a structural schematic diagram of the arc-shaped sealing rubber plug in the air chamber forming mechanism of the third air path branch of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 25 is a schematic diagram of the inverted needle cylinder structure in the air chamber forming mechanism of the third air path branch of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 26 is a schematic diagram of the fourth gas path branch of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 27 is a schematic diagram of the tire inflation and deflation control mechanism of the fourth air path branch of the automobile tire pressure adjustment device controlled by the intelligent control system of the automobile tire pressure adjustment device of the present invention;

Fig. 28 is a schematic diagram of the groove-shaped ring structure in the air chamber forming mechanism of the fourth air path branch of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 29 is a structural schematic diagram of the arc-shaped sealing rubber plug in the air chamber forming mechanism of the fourth air path branch of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

Fig. 30 is a schematic diagram of the inverted needle cylinder structure in the air chamber forming mechanism of the fourth air path branch mechanism of the automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention;

Explanation of main component labels: 1-double-head output air pump, 2-air pipe, 3-first air path branch I, 4-second air path branch II, 5-third air path branch III, 6-fourth Air circuit branch IV, 31-fixing bracket I, 32-air chamber forming mechanism I, 33-tire inflation and deflation control mechanism I, 34-4 sets of combined fixing bolts I, 35-2 sets of combined fixing bolts I, 3201- Grooved circular structure I, 3202-movable pin I, 3203-circular sealing rubber plug I, 3204-inverted needle cylinder structure I, 3205-1 set of fixing bolts I, 3301-housing I, 3302-gear width I, 3303-Jump I, 3304-Pneumatic control mechanism deflation one-way valve I, 3305-Tire pressure sensor I, 3306-Tire deflation one-way valve I, 3307-3 in 1 out with thimble connector I, 3308-Intake check valve I of air circuit control mechanism, 3309-Tyre air delivery check valve I, 32011-Groove ring I, 32012-Keyway hole I, 32013-Air circuit check valve I, 32014-4 In 1 out 5 channel connector I, 32031-arc-shaped sealing rubber plug front protrusion I, 32032-arc-shaped sealing rubber plug I, 32033-arc-shaped thimble I, 32041-circular cylinder I, 32042-piston I, 32043-push rod I, 32044-piston sealing ring I, 32045-return spring I, 41-movable bracket II, 42-air chamber forming mechanism II, 43-tire inflation and deflation control mechanism II, 44-4 sets of combined fixing bolts II, 45-2 sets of combined fixing bolts II, 46-connecting movable pin II, 4201-grooved circular structure II, 4202-moving pin II, 4203-arc-shaped sealing rubber plug II, 4204-inverted needle barrel structure II, 4205-1 set of fixing bolts II, 4301-shell II, 4302-gear width II, 4303-ram II, 4304-air control mechanism deflation check valve II, 4305-tire pressure sensor II, 4306- Tire deflation check valve II, 4307-3 in 1 out with thimble connector II, 4308-intake check valve II of air circuit control mechanism, 4309-tire air delivery check valve, 42011-groove ring II, 42012-keyway hole II, 42013-air one-way valve II, 42014-4 in 1 out 5 channel connector II, 42031-arc-shaped sealing rubber plug front protrusion II, 42032-arc-shaped sealing rubber plug II, 42033- Arc-shaped thimble II, 42041-circular cylinder II, 42042-piston II, 42043-push rod II, 42044-piston sealing ring II, 42045-return spring II, 51-fixing bracket III, 52-air chamber forming mechanism III, 53-tire inflation and deflation control mechanism III, 54-4 sets of combined fixing bolts III, 55-2 sets of combined fixing bolts III, 5201-groove Circular structure III, 5202-movable pin III, 5203-circular sealing rubber plug III, 5204-inverted needle cylinder structure III, 5205-1 set of fixing bolts III, 5301-housing III, 5302-gear width III, 5303-Jump III, 5304-Pneumatic control mechanism deflation check valve III, 5305-Tire pressure sensor III, 5306-Tire deflation check valve III, 5307-3 in 1 out with thimble connector III, 5308- Inlet check valve III of air circuit control mechanism, 5309-tire air delivery check valve, 52011-groove ring III, 52012-key groove hole III, 52013-air circuit check valve III, 52014-4 in 1 out 5-channel joint III, 52031-arc-shaped sealing rubber plug front protrusion III, 52032-arc-shaped sealing rubber plug III, 52033-arc-shaped thimble III, 52041-circular cylinder III, 52042-piston III, 52043-push Rod III, 52044-piston sealing ring III, 52045-return spring III, 61-movable support IV, 62-air chamber forming mechanism IV, 63-tire inflation and deflation control mechanism IV, 64-4 sets of combined fixing bolts IV, 65 -2 sets of combined fixing bolts IV, 66-connecting movable pin IV, 6201-grooved circular structure IV, 6202-moving pin IV, 6203-arc-shaped sealing rubber plug IV, 6204-inverted needle barrel structure IV, 6205 -1 set of fixing bolts IV, 6301-housing IV, 6302-gear width IV, 6303-ram IV, 6304-air control mechanism deflation check valve IV, 6305-tire pressure sensor IV, 6306-tire deflation Check valve IV, 6307-3 in 1 out with thimble connector IV, 6308-inlet check valve IV of air circuit control mechanism, 6309-tire air delivery check valve, 62011-groove ring IV, 62012-keyway Shaped hole IV, 62013-gas circuit check valve IV, 62014-4 in 1 out 5 channel connector IV, 62031-arc-shaped sealing rubber plug front protrusion IV, 62032-arc-shaped sealing rubber plug IV, 62033-arc-shaped Thimble IV, 62041-circular cylinder IV, 62042-piston IV, 62043-push rod IV, 62044-piston sealing ring IV, 62045-return spring IV, 7701-first air path branch tire pressure detection control module I, 7702-tire pressure detection control module I of the second gas path branch, 7703-tire pressure detection control module I of the third gas path branch, 7704-tire pressure detection control module I of the fourth gas path branch.

detailed description

A kind of automobile tire pressure regulating device controlled by the intelligent control system of the automobile tire pressure regulating device of the present invention is shown in Fig. 10 to Fig. 30. The trachea 2 includes a trachea 201 and a trachea 202, and is connected to the trachea 201 and the trachea 202. One air path branch I3, the second air path branch II4 located in the right front wheel, the third air path branch III5 located in the left rear wheel, and the fourth air path branch IV6 located in the left front wheel. The first air path branch mechanism I3 includes a fixed bracket I31 fixed to the rear axle through two sets of combined fixing bolts I35, an air chamber forming mechanism I32 fixed on the fixing bracket I31, connected to the air chamber forming mechanism I32 and The tire inflation and deflation control mechanism I33 fixed on the spoke of the right rear wheel, the output of the tire inflation and deflation control mechanism I33 is connected to the air nozzle of the right rear wheel tire, 2 sets of combined fixing bolts I35 include fixing bolts I3501, fixing bolts I3502, The air chamber forming mechanism I32 includes a groove-shaped annular structure I3201 fixed to the right rear wheel spoke to form an air chamber through 4 sets of combined bolts I34, one end of which is fixed to the fixed bracket I31 through a set of fixing bolts I3205, and the other end is fixed by a movable The pin I3202 is connected to the arc-shaped sealing rubber plug I3203 of the fixed bracket I31, and is connected to the inverted syringe structure I3204 of the arc-shaped sealing rubber plug I3203. The cavity inside the arc-shaped sealing rubber plug I3203 is connected. There is a grooved ring I32011 in the grooved ring structure I3201, and the grooved ring I32011 is fixed on the spoke of the right rear wheel through 4 sets of combined fixing bolts I34, including the fixing bolts I3401, Fixing bolts I3402, fixing bolts I3403, and fixing bolts I3404. There are four keyway holes I32012 for air intake along the circumferential direction at the bottom of the groove. Each keyway hole I32012 is connected to an air circuit check valve I32013, 4 pieces The output of the air circuit check valve I32013 is connected to the air circuit control mechanism air intake check valve I3308 of the tire inflation and deflation control structure I33 through a 4-in-1-out 5-channel joint I32014 converging output, and the arc-shaped sealing rubber plug I3203 On the top, there is an arc-shaped sealing rubber plug front end protrusion I32031 connected to the front end of the push rod I32043 of the inverted needle cylinder structure I3204. The front end protrusion I32031 of the sealing rubber plug is connected to the arc-shaped sealing rubber plug I32032 with a square groove on the back to form an air chamber cavity. The other end of the arc-shaped sealing rubber plug I32032 is fixed on the fixing bracket I31 by a set of fixing bolts I3205. There are 4 arc-shaped thimbles I32033 in the groove of the arc-shaped sealing rubber plug I32032, which are used to open the air circuit check valve I32013 at the bottom of the groove-shaped circular structure I3201. Circular cylinder I32041, the piston I32042 that slides back and forth inside the cylinder, the push rod I32043 connected to the live game, the piston sealing ring I32044 that is set on the piston, the return spring I32045 that is set on the push rod I32043, and the front end of the push rod I32043 Connected with the front end protrusion I32031 of the arc-shaped sealing rubber plug, the tire inflation and deflation control mechanism I33 of the first air path branch includes a housing I3301, a stepping motor D1 fixed to the housing _I3301 , through the gear width I3302 The ejector rod I3303 connected to the output shaft of the stepping motor D1 for opening the _one -way valve, the air circuit control mechanism fixed on the left middle and lower part of the housing I3301, the air discharge one-way valve I3304, the air circuit control mechanism, the air release one-way valve I3304 The output port is connected to the atmosphere, the tire pressure sensor I3305 fixed on the right end of the housing I3301 for detecting tire pressure and the tire deflation check valve I3306 for tire deflation, and the upper middle part of the housing for feeding tires The pneumatic tire air supply check valve I3309 is connected to the air nozzle of the right rear wheel tire through the 3-input and 1-output joint I3307, and is fixed in the middle and lower part of the housing I3301 for external air to enter the air circuit control mechanism of the housing I3301. The gas check valve I3308 is connected with the 4-in-1-out 5-channel joint I32014 of the air chamber forming structure I32, and the housing I3301 is except for the air-releasing check valve through the air circuit control mechanism I3304 can communicate with the atmosphere, and all other parts are sealed.

The second air path branch mechanism II4 includes a movable bracket II41 fixed on the front axle through 2 sets of combined fixing bolts II45, an air chamber forming mechanism II42 fixed on the movable bracket II41, connected with the air chamber forming mechanism II42 and The tire inflation and deflation control mechanism II43 fixed on the spoke of the right front wheel, the output of the tire inflation and deflation control mechanism II43 is connected to the air nozzle of the right front wheel tire, and the movable bracket II41 can be wound around and connected with the movable pin II46 to follow the left and right of the right front wheel For sports, 2 sets of combined fixing bolts II45 include fixing bolts II4501 and fixing bolts II4502 respectively. The air chamber forming mechanism II42 includes a groove-shaped circular ring structure II4201 fixed to the right front wheel spoke to form an air chamber through 4 sets of combined fixing bolts II44, one end of which is fixed to the movable bracket II41 through a set of bolts II4205, and the other end is passed through the movable The pin II4202 is connected to the arc-shaped sealing rubber plug II4203 of the movable support II41, and is connected to the inverted syringe structure II4204 of the arc-shaped sealing rubber plug II4203. The cavity inside the arc-shaped sealing rubber plug II4203 is connected. In the groove-shaped ring structure II4201, there is a groove-shaped ring II42011, and the groove-shaped ring II42011 is fixed on the spoke of the right front wheel through 4 sets of combined fixing bolts II44, and the 4 sets of combined fixing bolts II44 include fixing bolts II4401 respectively , Fixing bolts II4402, fixing bolts II4403, fixing bolts II4404, there are four keyway holes II42012 for air intake along the circumferential direction at the bottom of the groove, and each keyway hole II42012 is connected to an air circuit check valve II42013, 4 The output of each air circuit check valve II42013 is connected to the air circuit control mechanism air intake check valve II4308 of the tire inflation and deflation control mechanism II43 through a 4-in-1-out 5-channel joint II42014 converging output, and the arc-shaped sealing rubber plug On the II4203, there is an arc-shaped sealing rubber plug front-end protrusion II42031 connected with the front end of the push rod II42043 of the inverted syringe structure II4204. The front protrusion II42031 of the arc sealing rubber plug is connected to the arc sealing rubber plug II42032 with a square groove on the back to form the air chamber cavity. The other end of the arc sealing rubber plug II42032 is fixed on the movable bracket II41 by a set of fixing bolts II4205 , there are four arc-shaped thimbles II42033 in the groove of the arc-shaped sealing rubber plug II42032, which are used to open the gas circuit check valve II42013 at the bottom of the groove-shaped circular structure II4201 groove, and there are four arc-shaped thimbles II42033 in the inverted needle cylinder structure II4204 A circular cylinder II42041, the piston II42042 that slides back and forth inside the cylinder, the push rod II42043 connected to the live game, the piston sealing ring II42044 set on the piston, the return spring II42045 set on the push rod II42043, and the push rod II42043 The front end is connected to the front end protrusion II42031 of the arc-shaped sealing rubber plug. The tire inflation and deflation control mechanism II43 of the second air path branch includes a housing II4301, a stepping motor D2 fixed to the housing _II4301 , through the gear width II4302 is connected to the output shaft of the stepper motor D ₂ and is used to open the ejector rod II4303 of the check valve, and is fixed to the air circuit control mechanism at the lower left middle of the housing II4301. The output port of II4304 is connected to the atmosphere, and is fixed on the right end of the casing II4301 to detect the tire pressure. The tire pressure sensor II4305 and the tire deflation check valve II4306 are used to deflate the tire, and the upper part of the casing is used to supply the tire The tire air supply one-way valve II4309 for air transmission is connected to the air nozzle of the right front wheel tire through 3 inputs and 1 output with thimble joint II4307, and is fixed at the middle and lower part of the casing II4301, which is used for external air to enter the air circuit control mechanism of the casing II4301 Air intake one way The valve II4308 is connected with the 4-in, 1-out 5-channel joint II42014 of the air chamber forming structure II42, and the housing II4301 is sealed except for the one-way valve II4304 through the air circuit control mechanism to communicate with the atmosphere.

The third air path branch mechanism III5 includes a fixed bracket III51 fixed to the rear axle through 2 sets of combined fixing bolts III55, and an air chamber forming mechanism III52 fixed on the fixing bracket III51, which is connected with the air chamber forming mechanism III52 and The tire inflation and deflation control mechanism III53 fixed on the spoke of the left rear wheel, the output of the tire inflation and deflation control mechanism III53 is connected to the air nozzle of the left rear wheel tire, 2 sets of combined fixing bolts III55 include fixing bolts III5501, fixing bolts III5502, The air chamber forming mechanism III52 includes a groove-shaped annular structure III5201 fixed to the left rear wheel spoke to form an air chamber through 4 sets of combined fixing bolts III54, one end of which is fixed to the fixing bracket III51 through a set of fixing bolts III5205, and the other end is passed through The movable pin III5202 is connected to the arc-shaped sealing rubber plug III5203 of the fixed bracket III51, and is connected to the inverted syringe structure III5204 of the arc-shaped sealing rubber plug III5203. The cavity inside the arc-shaped sealing rubber plug III5203 is connected. The grooved ring III52011 is arranged in the grooved ring structure III5201, and the grooved ring III52011 is fixed on the spoke of the left rear wheel through 4 sets of combined fixing bolts III54, including the fixing bolts III5401, Fixing bolts III5402, fixing bolts III5403, fixing bolts III5404, there are 4 keyway holes III52012 for air intake along the circumferential direction at the bottom of the groove, each keyway hole III52012 is connected to an air circuit check valve III52013, 4 pieces The output of the gas circuit check valve III52013 is connected to the air circuit control mechanism air intake check valve III5308 of the tire inflation and deflation control mechanism III53 through a 4-in 1-out 5-channel joint III52014 converging output, and the arc-shaped sealing rubber plug III5203 On the top, there is an arc-shaped sealing rubber plug front-end protrusion III52031 connected to the front end of the push rod III52043 of the inverted syringe structure III5204. The front protrusion III52031 of the sealing rubber plug is connected to the arc-shaped sealing rubber plug III52032 with a square groove on the back to form the air chamber cavity. The other end of the arc-shaped sealing rubber plug III52032 is fixed on the fixing bracket III51 by a set of fixing bolts III5205. There are 4 arc-shaped thimbles III52033 in the groove of the arc-shaped sealing rubber plug III52032, which are used to open the gas path check valve III52013 at the bottom of the groove-shaped circular structure III5201 groove, and there is one in the inverted needle cylinder structure III5204 Circular cylinder III52041, the piston III52042 that slides back and forth inside the cylinder, the push rod III52043 connected to the live game, the piston sealing ring III52044 set on the piston, the return spring III52045 set on the push rod III52043, and the front end of the push rod III52043 It is connected to the front end protrusion III52031 of the arc-shaped sealing rubber plug. The tire inflation and deflation structure III53 of the third air path branch includes a housing III5301, and the stepping motor _D3 fixed to the housing III5301 is connected through the gear width III5302 The output shaft of the stepper motor _D3 is used to open the ejector rod III5303 of the check valve, and the gas circuit control mechanism fixed on the left middle and lower part of the housing III5301 is the deflation check valve III5304, and the gas circuit control mechanism is the deflation check valve III5304. The output port is connected to the atmosphere, fixed on the right end of the housing III5301 for tire pressure detection tire pressure sensor III5305 and tire deflation check valve III5306 for tire deflation, and located in the upper part of the housing for delivering air to the tire Tire air supply check valve III5309 through 3 inputs and 1 output with thimble connector III5307 and left rear The air nozzles of the tires are connected and fixed in the lower part of the casing III5301, which is used for the external air to enter the air path control mechanism of the casing III5301 Inlet check valve III5308, and the 4-in and 1-out 5-channel joint III52014 of the structure III52 formed with the air chamber Connected, the housing III5301 is sealed except for the one-way valve III5304 which can communicate with the atmosphere through the gas path control mechanism.

The fourth air path branch mechanism IV6 includes a movable bracket IV61 fixed on the front axle through 2 sets of combined fixing bolts IV65, an air chamber forming mechanism IV62 fixed on the movable bracket IV61, connected with the air chamber forming mechanism IV62 and The tire inflation and deflation control mechanism IV63 fixed on the spoke of the left front wheel, the output of the tire inflation and deflation control mechanism IV63 is connected to the air nozzle of the left front wheel tire, and the movable bracket IV61 can be wound around and connected with the movable pin IV66 to follow the left and right front wheels For sports, 2 sets of combined fixing bolts IV65 include fixing bolts IV6501 and fixing bolts IV6502 respectively. The air chamber forming mechanism IV62 includes a groove-shaped annular structure IV6201 fixed to the spoke of the left front wheel through 4 sets of combined bolts IV64 to form an air chamber. IV6202 is connected to the arc-shaped sealing rubber plug IV6203 of the movable bracket IV61, and the inverted syringe structure IV6204 is connected to the arc-shaped sealing rubber plug IV6203. The cavity inside the rubber plug IV6203 is connected. There is a grooved ring IV62011 in the grooved ring structure IV6201, and the grooved ring IV62011 is fixed on the spoke of the left front wheel through 4 sets of combined fixing bolts IV64, and the 4 sets of combined fixing bolts IV64 include fixing bolts IV6401 respectively , Fixing bolt IV6402, fixing bolt IV6403, fixing bolt IV6404, there are four keyway holes IV62012 for air intake along the circumferential direction at the bottom of the groove, and each keyway hole IV62012 is connected to an air circuit check valve IV62013, 4 The output of each air circuit check valve IV62013 is connected to the air circuit control mechanism air intake check valve IV6308 of the tire inflation and deflation control structure IV63 through a 4-in, 1-out 5-channel joint IV62014 converging output, and the arc-shaped sealing rubber plug On the IV6203, there is an arc-shaped sealing rubber plug front-end protrusion IV62031 connected with the front end of the push rod IV62043 of the inverted syringe structure IV6204. The front end protrusion IV62031 of the arc-shaped sealing rubber plug is connected to the arc-shaped sealing rubber plug IV62032 with a square groove on the back to form an air chamber cavity. The other end of the arc-shaped sealing rubber plug IV62032 is fixed on the movable bracket IV61 by a set of fixing bolts IV6205 , there are four arc-shaped thimbles IV62033 in the groove of the arc-shaped sealing rubber plug IV62032, which are used to open the air circuit check valve IV62013 at the bottom of the groove-shaped circular structure IV6201 groove, and there are four arc-shaped thimbles IV62033 in the inverted needle cylinder structure IV6204 A circular cylinder IV62041, a piston IV62042 that slides back and forth inside the cylinder, a push rod IV62043 connected to the live game, a piston sealing ring IV62044 set on the piston, a return spring IV62045 set on the push rod IV62043, and a push rod IV62043 The front end is connected to the front end protrusion IV62031 of the arc-shaped sealing rubber plug. The tire inflation and deflation control mechanism IV63 of the fourth air path branch includes a housing IV6301, a stepping motor D ₄ fixed to the housing IV6301, through the gear width IV6302 is connected to the output shaft of the stepping motor motor D ₄ and is used to open the ejector rod IV6303 of the one-way valve. It is fixed on the air circuit control mechanism at the lower left middle of the casing IV6301. The output port of the valve IV6304 is connected to the atmosphere, the tire pressure sensor IV6305 fixed on the right end of the casing IV6301 for detecting tire pressure and the tire deflation check valve IV6306 used for tire deflation, and the upper middle part of the casing for feeding The tire air supply one-way valve IV6309 for tire air transmission is connected to the air nozzle of the left front wheel tire through 3 inputs and 1 output with thimble connector IV6307, and is fixed at the middle and lower part of the casing IV6301 to control the air path of external air entering the casing IV6301 Mechanism intake The one-way valve IV6308 is connected with the 4-in and 1-out 5-channel joint IV62014 of the air chamber forming structure IV62, and the housing IV6301 is sealed except for the one-way valve IV6304 which can communicate with the atmosphere through the air circuit control mechanism.

As shown in Figures 1 to 9, the intelligent control system of the automobile tire pressure regulating device of the present invention includes a control center module 71, a parameter modification module 74 connected to the control center module, an air pump working module 73, a signal parameter display module 72, and a temperature detection module. 75. RFID signal transceiving module 76, four tire pressure detection control modules 77 connected to the control center module 71 through the RFID signal transceiving module 75. In this example, the control center module 71 is composed of MC9S12XS128 single-chip microcomputer and some auxiliary circuits.

The four tire pressure detection control modules 77 include a tire pressure detection control module I7701 located in the first air path branch on the right rear wheel, a tire pressure detection control module II7702 located in the second air path branch of the right front wheel, and a tire pressure detection control module II7702 located in the left rear Tire pressure detection control module III7703 of the third air path branch on the wheel is located at the tire pressure detection control module IV7704 of the fourth air path branch on the left front wheel. The tire pressure detection control module I7701 of the first gas circuit branch includes a tire pressure detection circuit 1, an intelligent RFID chip CC2430I connected to the tire pressure detection circuit 1, a micro-shaped antenna 1 connected to the intelligent RFID chip CC2430I, and a battery undervoltage Detection and alarm circuit ₁ , stepper motor D1 drive circuit, stepper motor D1 connected to the stepper motor D1 drive circuit, intelligent RFID chip _CC2430I integrates _an enhanced industrial-grade 8051 single-chip microcomputer, wireless transceiver module and A/D The conversion module, so the tire pressure detection control module 7701 of the first gas path branch is a micro-processing module composed of an intelligent RFID chip CC2430I, which completes data collection, processing, reception, and control. Battery under-voltage detection and alarm circuit 1. After the data collected by the pressure detection circuit 1 is processed and analyzed by the intelligent RFID chip CC2430I, according to the situation, the data is sent to the control center processing module 71 through the micro-antenna 1 and the RFID signal transceiver module 76, and the control center processing module 71 is based on the obtained data. The temperature information that temperature detection module 75 obtains, through judging and analyzing, sees whether there is battery undervoltage alarm, if any, then sends battery undervoltage alarm signal prompting, then judges whether there is tire undervoltage, overvoltage alarm, if any, control The central processing module 71 sends the control information to the smart RFID chip CC2430I through the RFID signal transceiver module 76, and the smart RFID chip _CC2430I receives the data, and after analysis and judgment, the stepper motor D1 is controlled by the stepper motor _D1 drive circuit to perform corresponding For work, such as undervoltage, the stepping motor D1 will turn 45 degrees counterclockwise, and if overvoltage, turn 45 degrees clockwise. Through the movement _of the stepping motor D1, the power is transmitted to the gear width _I3302 , and through the gear width I3302 drives the ejector rod I3303 to move, and drives the on-off of the corresponding valve to control the on-off of the corresponding air circuit.

The tire pressure detection control module II7702 of the second gas circuit branch includes a tire pressure detection circuit 2, an intelligent RFID chip CC2430II connected to the tire pressure detection circuit 2, a micro-shaped antenna 2 connected to the intelligent RFID chip CC2430II, and a battery undervoltage Detection and alarm circuit ₂ , stepper motor D2 drive circuit, stepper motor D2 connected to the stepper motor D2 drive circuit, intelligent RFID chip _CC2430II integrates an enhanced industrial _- grade 8051 single-chip microcomputer, wireless transceiver module and A/D The conversion module, so the tire pressure detection control module of the second gas path branch is a micro-processing module composed of an intelligent RFID chip CC2430II, which completes data collection, processing, reception, and control, battery undervoltage detection and alarm circuit 2, tire pressure After the data collected by the detection circuit 2 is processed and analyzed by the intelligent RFID chip CC2430II, according to the situation, the data is sent to the control center processing module 71 through the micro-antenna 2 and the RFID signal transceiver module 76, and the control center processing module 71 is combined with the temperature according to the obtained data. The temperature information obtained by the detection module 75 is judged and analyzed to see if there is a battery undervoltage alarm, and if so, a battery undervoltage alarm signal prompt is sent, and then it is judged whether there is a tire undervoltage, an overvoltage alarm, and if so, the control center The processing module sends the control information to the smart RFID chip CC2430II through the RFID transceiver module 76 and the micro-antenna ₂ , and the smart RFID chip _CC2430II receives the data. After analysis and judgment, the stepper motor D2 is controlled by the stepper motor D2 drive circuit to carry out Corresponding work, such as undervoltage, the stepper motor D2 turns 45 degrees counterclockwise, and if overvoltage, turns 45 degrees clockwise, through the movement of the _stepper motor D2, the power is transmitted to the gear width _II4302 , through the gear Width II4302 drives the ejector rod II4303 to move, thereby driving the on-off of the corresponding valve to control the on-off of the gas circuit.

The tire pressure detection control module II7703 of the third gas path branch includes a tire pressure detection circuit 3, an intelligent RFID chip CC2430III connected to the tire pressure detection circuit 3, a micro-shaped antenna 3 connected to the intelligent RFID chip CC2430III, and a battery undervoltage Detection and alarm circuit 3, stepper motor _D3 drive circuit, stepper motor _D3 connected to the stepper motor _D3 drive circuit, intelligent RFID chip CC2430III integrates an enhanced industrial-grade 8051 single-chip microcomputer, wireless transceiver module and A/D Conversion module, so the tire pressure detection and control module of the third gas circuit branch is a micro-processing module composed of an intelligent RFID chip CC2430III, which completes data collection, processing, reception, and control, and battery undervoltage detection and alarm circuit 3. Tire pressure After the data collected by the detection circuit 3 is processed and analyzed by the intelligent RFID chip CC2430III, according to the situation, the data is sent to the control center processing module 71 through the micro-antenna 3 and the RFID signal transceiver module 76, and the control center processing module 71 is combined with the temperature according to the obtained data. The temperature information obtained by the detection module 75 is judged and analyzed to see if there is a battery undervoltage alarm, and if so, a battery undervoltage alarm signal prompt is sent, and then it is judged whether there is a tire undervoltage, an overvoltage alarm, and if so, the control center The processing module sends the control information to the smart RFID chip CC2430III through the RFID transceiver module 76 and the micro-antenna 3, and the smart RFID chip CC2430III receives the data. After analysis and judgment, the stepper motor _D3 is controlled by the stepper motor _D3 drive circuit to carry out Corresponding work, such as undervoltage, the stepper motor _D3 will turn 45 degrees counterclockwise, and if overvoltage, then turn 45 degrees clockwise, through the movement of the stepper motor _D3 , the power is transmitted to the gear width III5302, through the gear Width III5302 drives the ejector rod III5303 to move, thereby driving the on-off of the corresponding valve to control the on-off of the gas circuit.

The tire pressure detection control module IV7704 of the fourth gas circuit branch includes a tire pressure detection circuit 4, an intelligent RFID chip CC2430IV connected to the tire pressure detection circuit 4, a micro-shaped antenna 4 connected to the intelligent RFID chip CC2430IV, and a battery undervoltage Detection and alarm circuit ₄ , stepper motor D4 drive circuit, stepper motor D4 connected to the stepper motor D4 drive circuit, intelligent RFID chip _CC2430IV integrates an enhanced industrial _- grade 8051 single-chip microcomputer, wireless transceiver module and A/D The conversion module, so the tire pressure detection control module of the fourth gas circuit branch is a micro-processing module composed of an intelligent RFID chip CC2430IV, which completes data collection, processing, reception, and control, and battery undervoltage detection and alarm circuit 4. Tire pressure After the data collected by the detection circuit 4 is processed and analyzed by the intelligent RFID chip CC2430IV, according to the situation, the data is sent to the control center processing module 71 through the miniature antenna 4 and the RFID signal transceiver module 76, and the control center processing module 71 is combined with the temperature according to the obtained data. The temperature information obtained by the detection module 75 is judged and analyzed to see if there is a battery undervoltage alarm, and if so, a battery undervoltage alarm signal prompt is sent, and then it is judged whether there is a tire undervoltage, an overvoltage alarm, and if so, the control center The processing module sends the control information to the smart RFID chip CC2430IV through the RFID transceiver module 76 and the micro-antenna ₄ , and the smart RFID chip _CC2430IV receives the data. After analysis and judgment, the stepper motor D4 is controlled by the stepper motor D4 drive circuit to carry out Corresponding work, such as undervoltage, the stepper motor D4 will turn ₄₅ degrees counterclockwise, and if overvoltage, turn ₄₅ degrees clockwise, through the movement of the stepper motor D4, the power is transmitted to the gear width IV6302, through the gear Width IV6302 drives the ejector rod IV6303 to move, thereby driving the on-off of the corresponding valve to control the on-off of the gas circuit.

The air pump working module 73 includes an air pump drive circuit, a double-head output air pump connected to the air pump drive circuit, and the air pump drive circuit drives the double-head output air pump to work.

The parameter modification module 74 includes a manual parameter setting and modification circuit.

The signal parameter display module 72 includes a liquid crystal drive circuit, connected to the liquid crystal drive circuit is a liquid crystal block for parameter display.

Described temperature detection module 75 comprises the temperature detection circuit that is used for real-time detection temperature, and RFID signal transceiving module 76 comprises RFID signal transceiving circuit and miniature antenna 5, and central control module 71 is connected with four tire air pressure detection control modules by RFID signal transceiving module 76. 77 to communicate.

The control process of the intelligent control system of the automobile tire pressure regulating device of the present invention is shown in Figure 4. When the program is started, it is first judged whether it is the first operation of the system. If so, the tire pressure parameters of various weather and road conditions will be preset ( These parameters are given by the manufacturer as a reference, set by the driver and passengers according to the local conditions, or the default settings of the system can be used), if not, first judge the tire inflation and deflation machine control on the four wheels Whether the battery of the mechanism is under-voltage alarmed, if so, replace the battery on the corresponding wheel according to the alarm sign, if the battery under-voltage alarm does not occur, then judge whether to manually repair the tire pressure parameters according to the weather and road conditions, if necessary, manually Modify the tire pressure parameters. If no modification is required, enter the normal tire pressure adjustment process.

The control process of normal tire pressure adjustment is divided into five steps, namely, under-pressure and over-pressure detection process, under-pressure degree detection and processing process, over-pressure degree detection and processing process, inflation process, and deflation process. The working process is described below , where the working process of the undervoltage and overvoltage detection process is shown in Figure 5. After entering the module, the tire sensors on each wheel work, and send the tire pressure information of the four tires to the control center, and then first judge whether the right rear wheel is Undervoltage, if the right rear wheel is undervoltage, set the right rear wheel undervoltage flag Flag11=1, and then enter the undervoltage detection and processing process. After the undervoltage detection and processing process is completed or the right rear wheel is not undervoltage Next, it directly judges whether the right front wheel is undervoltage. If the right front wheel is undervoltage, set the right front wheel undervoltage flag Flag12=1, and then enter the undervoltage degree detection and processing process. After the undervoltage degree detection and processing process is completed or in If the right front wheel is not undervoltage, it will directly judge whether the left rear wheel is undervoltage. After the detection and processing process is completed or if the left rear wheel is not undervoltage, it is directly judged whether the left front wheel is undervoltage. If the left front wheel is undervoltage, set the left front wheel undervoltage flag Flag14=1, and then enter the undervoltage level Detection and processing process, after the undervoltage detection and processing process is completed or if the left front wheel is not undervoltage, it is directly judged whether the right rear wheel is overvoltage, and if it is overvoltage, set the right rear wheel overvoltage flag Flag21=1 , and then enter the overvoltage detection and processing process. After the overvoltage detection and processing process is completed or the right rear wheel is not under pressure, it is directly judged whether the right front wheel is overvoltage. If it is overvoltage, set the right front wheel overvoltage. Flag Flag22=1, then enter the overvoltage detection and processing process, after the overvoltage detection and processing process is completed or the right front wheel is not under pressure, it will directly judge whether the left rear wheel is over pressure, if it is over pressure, set it to the left Rear wheel overvoltage flag Flag32=1, then enter the overvoltage detection and processing process, after the overvoltage detection and processing process is completed or the left rear wheel is not under pressure, it will directly judge whether the left front wheel is overvoltage, if overvoltage , then set the overvoltage flag Flag42=1, then enter the overvoltage degree detection and processing flow, after the overvoltage degree detection and processing flow end or under the situation that the right front wheel is not under pressure, then the program returns.

The detection and processing flow of underpressure degree is shown in Figure 6. When entering this module, it is first judged whether the tire pressure drops sharply. If it drops sharply, it enters the inflation process. System initialization setting, different models and tire types have different lower limits), if it drops to the lower limit of the specified tire pressure, enter the inflation process, otherwise judge whether the car is moving, if not, enter the inflation process, otherwise the program return.

The overpressure degree detection and processing flow are shown in Figure 7. When entering this module, it is first judged whether the tire pressure rises sharply. If it rises sharply, it enters the deflation process. It is set by the system initialization, different models and tire types have different upper limits), if it rises to the upper limit of the specified tire pressure, it will enter the deflation process, otherwise it will judge whether the car is moving, if not, it will enter the deflation process process, otherwise the program returns.

The inflation process is shown in Figure 8. First, the double-head air pump starts to work, and four air path conduction flags, Flag110=0, Flag210=0, Flag310=0, Flag410=0, are juxtaposed, and then the underpressure of the right rear wheel is judged. Whether the flag Flag11 is equal to 1, if it is equal to 1, the stepper motor D ₁ reverses 45 degrees counterclockwise, the air circuit control mechanism intake check valve I3308, tire air supply check valve I3309 conduction, and the piston I32042 moves forward at the same time, Drive the arc-shaped sealing rubber plug I3203 to move forward, the arc-shaped sealing rubber plug I3203 joins with the grooved ring I32011, and starts to compress (if the car is in motion, the air circuit check valve I32013 will be on the arc-shaped thimble I32033 and the circular arc-shaped sealing rubber plug I3203 internal sealing cavity gas pressure conduct instantaneously, if the car is at a standstill, the gas circuit check valve I32013 seals the internal cavity gas pressure of the circular arc-shaped sealing rubber plug I3203 conduction under action), so that the right rear wheel inflatable gas path is conductive, and set the right rear wheel gas path conduction flag Flag110=1, and then judge whether Flag21 is equal to 1, if Flag11 is not equal to 1, then directly judge whether Flag21 is equal to 1 , if Flag21 is equal to 1, the stepper motor D ₂ reverses 45 degrees counterclockwise, the air circuit control mechanism intake check valve II4308 and tire air delivery check valve II4309 conduct, and the piston II42042 moves forward at the same time, driving the circular arc The shape sealing rubber plug II4203 moves forward, and the arc-shaped sealing rubber plug II4203 engages with the groove-shaped ring II42011 to start pressing work (if the car is in motion, the gas circuit check valve II42013 is connected between the arc-shaped thimble II42033 and the arc Under the joint action of gas pressure in the sealing cavity of the circular sealing rubber plug II4203, the gas circuit conducts instantaneously. If the car is in a stationary state, the gas circuit check valve II42013 conducts under the action of the gas pressure of the sealing cavity in the arc-shaped sealing rubber plug II4203) , so that the right front wheel inflatable air circuit is conducted, and the right front wheel air circuit conduction flag Flag210=1 is juxtaposed, and then judge whether Flag31 is equal to 1, if Flag21 is not equal to 1, then directly judge whether Flag31 is equal to 1, if Flag31 is equal to 1 , the stepper motor D ₃ reverses 45 degrees counterclockwise, the air control mechanism intake check valve III5308 and tire air supply check valve III5309 conduct, and the piston III52042 moves forward at the same time, driving the arc-shaped sealing rubber plug III5203 Moving forward, the arc-shaped sealing rubber plug III5203 engages with the grooved ring III52011, and starts to press the work (if the car is in motion, the gas circuit check valve III52013 is connected between the arc-shaped thimble III52033 and the arc-shaped sealing rubber plug III5203 Under the joint action of the gas pressure in the inner sealed cavity, the conduction is instantaneous. If the car is in a stationary state, the gas circuit check valve III52 013 is conducted under the action of gas pressure in the sealing cavity of the arc-shaped sealing rubber plug III5203), so that the left rear wheel inflation air circuit is conducted, and the left rear wheel air circuit conduction flag Flag310=1 is juxtaposed, and then it is judged whether Flag41 is equal to 1. If Flag31 is not equal to 1, directly judge whether Flag41 is equal to 1. If Flag41=1 is equal to 1, then the stepper motor D4 reverses ₄₅ degrees counterclockwise, and the air circuit control mechanism intake check valve IV6308, tire air The one-way valve IV6309 conducts, and at the same time, the piston IV62042 moves forward, driving the arc-shaped sealing rubber plug IV6203 to move forward, and the arc-shaped sealing rubber plug IV6203 engages with the grooved ring IV62011 to start pressing work (if the car is in motion In the state, the gas circuit check valve IV62013 is instantly conducted under the joint action of the air pressure in the sealing cavity of the circular arc-shaped thimble IV62033 and the circular arc-shaped sealing rubber plug IV6203. The sealed cavity in the arc-shaped sealing rubber plug IV6203 conducts under the action of gas pressure), so that the left front wheel inflatable air circuit is conducted, and the left front wheel air circuit conduction flag Flag410=1 is set to start intake air. If Flag41 is not equal to 1, then directly enter the intake air, and then judge whether the tire pressure of the right rear tire reaches the specified value and whether the flag Flag110 of the right rear wheel air circuit conduction is equal to 1, if it reaches the specified value and Flag110=1, then the stepper motor D ₁ Clockwise rotation 45 degrees forward, the stepper motor D ₁ returns to the initial position, the air intake check valve I3308 of the air circuit control mechanism, and the tire air supply check valve I3309 are reset and non-conductive, so that the right rear wheel inflation air circuit is disconnected, and at the same time Set Flag11=0, and then judge whether the pressure of the right front tire has reached the specified value and whether Flag210 of the right front wheel air circuit conduction flag is equal to 1, if the tire pressure of the right rear wheel has not reached the specified value or Flag110 is not equal to 1, then directly judge the right front tire Check whether the pressure reaches the specified value and whether Flag210 is equal to 1.

If the pressure of the right front tire reaches the specified value and Flag210=1, the stepper motor D ₂ rotates clockwise 45 degrees, and the stepper motor D ₂ returns to the initial position. Reset the direction valve II4309 and disconnect the right front wheel inflation air circuit, set Flag21=0 at the same time, then judge whether the left rear tire pressure reaches the specified value and whether the left rear wheel air circuit conduction flag Flag310 is equal to 1, if the right If the tire pressure of the front wheels does not reach the specified value or Flag210 is not equal to 1, then it is directly judged whether the left rear tire pressure reaches the specified value and whether the left rear wheel air circuit conduction flag Flag310 is equal to 1.

If the pressure of the left rear tire reaches the specified value and Flag310=1, the stepper motor _D3 will rotate clockwise 45 degrees, and the stepper motor _D3 will return to the initial position. The one-way valve III5309 is reset and does not conduct, so that the left rear wheel inflation air circuit is disconnected, and Flag31=0 is set at the same time, and then it is judged whether the left front tire pressure reaches the specified value and whether the left front wheel air circuit conduction flag Flag410 is equal to 1, if the left If the tire pressure of the rear wheel does not reach the specified value or Flag310 is not equal to 1, then it is directly judged whether the left front tire pressure reaches the specified value and whether the left front wheel air circuit conduction flag Flag410 is equal to 1.

If the pressure of the left front tire reaches the specified value and Flag410= ₁ , the stepper motor D4 will rotate ₄₅ degrees clockwise, and the stepper motor D4 will return to the initial position. Return to the valve IV6309 and do not conduct, so the left front wheel inflation air circuit is disconnected, and at the same time set Flag41=0, then judge whether all four under-pressure flags are equal to 1, if the tire pressure of the left front wheel does not reach the specified value or Flag410 does not If it is equal to 1, it is directly judged whether all four undervoltage flags are equal to 1, if not all of the four undervoltage flags are equal to 0, then return to continue air intake, otherwise the air pump stops working, and the program returns.

The deflation process is shown in Figure 9. After entering the module, first set four deflation path conduction flags Flag120=0, Flag220=0, Flag320=0, Flag420=0, and then judge whether Flag12 is equal to 1, if equal to 1, then the stepper motor D ₁ rotates forward 45 degrees clockwise, the air circuit control mechanism air release check valve I3304 and the tire air release check valve I3306 conduct, and the right rear wheel air release air channel conduction flag Flag120=1, Then judge whether Flag22 is equal to 1, if Flag12 is not equal to 1, then directly judge whether Flag22 is equal to 1, if Flag22 is equal to 1, then the stepping motor D ₂ rotates clockwise 45 degrees, and the gas circuit control mechanism releases the air check valve II4304, The tire deflation one-way valve II4306 is turned on, the right front wheel deflation air path is turned on and Flag220=1, then judge whether Flag32 is equal to 1, if Flag22 is not equal to 1, then directly judge whether Flag32 is equal to 1, if Flag32 is equal to 1 , the stepper motor _D3 rotates clockwise for 45 degrees, the gas circuit control mechanism deflates the one-way valve III5304 and the tire deflation one-way valve III5306 conducts, the right front wheel deflates the circuit and sets Flag320=1, Then judge whether Flag42 is equal to 1, if Flag32 is not equal to 1, then directly judge whether Flag42 is equal to 1, if Flag42 is equal to 1, then the stepper motor D4 rotates ₄₅ degrees clockwise, and the air circuit control mechanism releases the check valve IV6304, Tire deflation one-way valve IV6306 conducts, the left front wheel deflate air path conducts and sets Flag420=1, and then deflates, if Flag42 is not equal to 1, directly enters deflation, and then judges whether the pressure of the right rear tire reaches Whether the regulation and Flag120 are equal to 1, if the right rear wheel reaches the specified tire pressure and Flag120=1, then the stepper motor D ₁ reverses 45 degrees counterclockwise, the air circuit control mechanism deflates the one-way valve I3304, and the tire deflates one-way valve I3306 is not connected, the right rear wheel air release channel is disconnected and Flag12=0, then judge whether the right front tire pressure reaches the specified value and whether Flag220 is equal to 1, if the right rear tire pressure does not reach the specified value or Flag120 is not equal to 1, then directly Determine whether the pressure of the right front tire reaches the specified value and whether Flag220 is equal to 1. If the pressure of the right front tire reaches the specified value and Flag220=1, the stepper motor D ₂ reverses 45 degrees counterclockwise, and the air circuit control mechanism deflates the one-way valve II4304, tire The deflation one-way valve II4306 is not conducting, the right front wheel deflation channel is disconnected and Flag22=0, then judge whether the left rear tire pressure reaches the specified value and whether Flag320 is equal to 1, if the right front tire pressure does not reach the specified value or Flag220 is not Equal to 1, then directly judge whether the pressure of the left rear tire reaches the specified value and whether Flag320 is equal to 1, if the pressure of the left rear tire reaches the specified value and Flag320=1, the stepper motor D ₃ reverses At 45 degrees, the air circuit control mechanism deflate check valve III5304 and tire deflate check valve III5306 are not conducting, the left rear wheel deflate passage is disconnected and Flag32=0, and then judge whether the pressure of the left front tire reaches the specified value and whether Flag420 is Wait 1, if the left rear tire pressure does not reach the specified value or Flag320 is not equal to 1, then directly judge whether the left front tire pressure reaches the specified value and whether Flag420 is equal to 1, if the left front tire pressure reaches the specified tire pressure and Flag420=1, then the stepper motor D ₄ Reverse 45 degrees counterclockwise, the air circuit control mechanism deflate check valve IV6304 and tire deflate check valve IV6306 are not conducting, the left front wheel deflate passage is disconnected and Flag42=0, and then judge 4 passing Whether the pressure flags are all equal to 0, if the pressure of the left front tire does not reach the specified value or Flag420 is not equal to 1, then directly judge whether the four overpressure flags are all equal to 0, if they are all equal to 0, the program returns, if there is a difference of 0, then Return to continue deflation.

Claims (5)

1. a vehicle tire pressure control apparatus intelligent control system, the vehicle tire pressure control apparatus that this intelligent control system controls comprises double end and exports air pump (1), the tracheae (2) that air pump (1) is connected is exported with double end, be connected with tracheae (2) and lay respectively at the first gas circuit affiliate I (3) of off hind wheel, be positioned at the second gas circuit affiliate II (4) of off front wheel, be positioned at the 3rd gas circuit affiliate III (5) of left rear wheel, be positioned at the 4th gas circuit affiliate IV (6) of the near front wheel, it is characterized in that, this intelligent control system comprise control center's module and respectively with the parameter adapting module of control center's model calling, air pump operational module, signal parameter display module, temperature detecting module, RFID signal transceiver module, by four pressure of tire detection control modules that RFID signal transceiver module is connected with control center module, four described pressure of tire detection control modules comprise and are positioned at the first gas circuit affiliate tire pressure detection control module I on off hind wheel, be positioned at off front wheel second gas circuit affiliate tire pressure detection control module ii, be positioned at the 3rd gas circuit affiliate tire pressure detection control module ii I on left rear wheel, be positioned at the 4th gas circuit affiliate tire pressure detection control module I V on the near front wheel, the tire pressure detection control module I of the first gas circuit affiliate comprises tire pressure testing circuit 1, the intelligent RFID chip CC2430I be connected with tire pressure testing circuit 1, the micro-shape antenna 1 be connected with intelligent RFID chip CC2430I, battery undervoltage detection warning circuit 1, stepping motor D ₁driving circuit, with stepping motor D ₁the Step motor D that driving circuit is connected ₁, by gear width I(3302) and be connected to stepping motor motor D ₁output shaft is used for the push rod I(3303 of open check valve), the tire pressure detection control module ii of the second gas circuit affiliate comprises tire pressure testing circuit 2, the intelligent RFID chip CC2430II be connected with tire pressure testing circuit 2, the micro-shape antenna 2, battery undervoltage detection warning circuit 2, the stepping motor D that are connected with intelligent RFID chip CC2430II ₂driving circuit, with stepping motor D ₂the Step motor D that driving circuit is connected ₂, by gear width II(4302) and be connected to stepping motor motor D ₂output shaft is used for the push rod I(I4303 of open check valve), the tire pressure detection control module ii I of the 3rd gas circuit affiliate comprises tire pressure testing circuit 3, the intelligent RFID chip CC2430III be connected with tire pressure testing circuit 3, the micro-shape antenna 3, battery undervoltage detection warning circuit 3, the stepping motor D that are connected with CC2430III ₃driving circuit, with stepping motor D ₃the Step motor D that driving circuit is connected ₃, by gear width II(I5302) and be connected to stepping motor motor D ₃output shaft is used for the push rod III(5303 of open check valve), the tire pressure detection control module I V of the 4th gas circuit affiliate comprises tire pressure testing circuit 4, the intelligent RFID chip CC2430IV be connected with tire pressure testing circuit 4, the micro-shape antenna 4, battery undervoltage detection warning circuit 4, the stepping motor D that are connected with intelligent RFID chip CC2430IV ₄driving circuit, with stepping motor D ₄the Step motor D that driving circuit is connected ₄, by gear width IV(6302) and be connected to stepping motor motor D ₄output shaft is used for the push rod IV(6303 of open check valve).

2. as vehicle tire pressure control apparatus intelligent control system according to claim 1, it is characterized in that air pump operational module comprises air pump driving circuit, the double end be connected with air pump driving circuit exports air pump, and air pump driving circuit drives double end to export air pump work.

3., as vehicle tire pressure control apparatus intelligent control system according to claim 1, it is characterized in that parameter adapting module comprises manual parameters and arranges and modification circuits.

4. as vehicle tire pressure control apparatus intelligent control system according to claim 1, it is characterized in that signal parameter display module comprises liquid crystal display drive circuit, being connected with liquid crystal display drive circuit is liquid crystal block for parameter display.

5. as vehicle tire pressure control apparatus intelligent control system according to claim 1, it is characterized in that temperature detecting module comprises the temperature sensing circuit for real-time detected temperatures, RFID signal transceiver module comprises RFID signal transmission circuit and miniature antenna 5, and Central Control Module is communicated with four pressure of tire detection control modules by RFID signal transceiver module.