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CN102069687A - Intelligent automobile tire pressure control method - Google Patents

Intelligent automobile tire pressure control method Download PDF

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Publication number
CN102069687A
CN102069687A CN 201010595177 CN201010595177A CN102069687A CN 102069687 A CN102069687 A CN 102069687A CN 201010595177 CN201010595177 CN 201010595177 CN 201010595177 A CN201010595177 A CN 201010595177A CN 102069687 A CN102069687 A CN 102069687A
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CN
China
Prior art keywords
tire
control method
braking force
automobile
pressure
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Pending
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CN 201010595177
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Chinese (zh)
Inventor
金海玲
刘强
马芳武
李书福
杨健
赵福全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
Original Assignee
Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
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Application filed by Zhejiang Geely Holding Group Co Ltd, Zhejiang Geely Automobile Research Institute Co Ltd filed Critical Zhejiang Geely Holding Group Co Ltd
Priority to CN 201010595177 priority Critical patent/CN102069687A/en
Publication of CN102069687A publication Critical patent/CN102069687A/en
Pending legal-status Critical Current

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Abstract

The invention provides an intelligent automobile tire pressure control method, which belongs to the technical field of automobile tires and solves the problems of high oil consumption and unguaranteed safety which are caused by constant automobile tire pressure during running of the existing automobile. By the intelligent automobile tire pressure control method, the pressure of a tire is adjusted by using a tire pressure adjustment mechanism; and the control method comprises the following steps of: a, detecting a thrust T0 and a braking force Z0 which are needed by the automobile; b, reducing the pressure of the tire by using the tire pressure adjustment mechanism until the tire pressure is reduced to a scheduled value; and c, raising the pressure of the tire by using the tire pressure adjustment mechanism until the tire pressure is raised to another scheduled value. The intelligent automobile tire pressure control method has the advantages that: the tire pressure can be instantly adjusted according to the braking force and the thrust which are needed by the automobile during running, so the automobile runs under a most economic air pressure, and the automobile energy is saved.

Description

A kind of motor tire intelligent pressure control method
Technical field
The invention belongs to the motor tire technical field, relate to a kind of motor tire intelligent pressure control method.
Background technology
The friction of rolling that produces by wheel and ground during running car promotes vehicle ', and overcoming friction of rolling is the important component part of automobile fuel consumption.The method that reduces friction of rolling under vehicle weight unmodified situation is to improve the air pressure of tire, and wheel and ground-surface area of contact are reduced; But because the restriction of the elastomeric material that tire adopted, too small area of contact can make wheel grab ground ability excessively a little less than, a little less than crossing, the ground ability can make automobile can not obtain counteraction propelling thrust and the braking force of enough ground and grab in the face of automobile, thereby can not make very fast starting of automobile or braking, thereby enjoyment and safety are driven in influence.
Summary of the invention
The objective of the invention is at of the influence of existing automotive tire pressure, and proposed a kind of big or small control method of adjusting knurl tire pressure immediately according to actual required propelling thrust of automobile and braking force to the vehicle drive process.
Purpose of the present invention can realize by following technical proposal: a kind of motor tire intelligent pressure control method, and utilize a tire pressure adjustment mechanism that the pressure of tire is regulated, it is characterized in that this control method comprises the steps:
A, the required propelling thrust T of detection automobile 0With braking force Z 0Size, if required propelling thrust T 0Greater than T 1Or required braking force Z 0Greater than Z 1The time, enter step b; If required propelling thrust T 0Less than T 2And required braking force Z 0Less than Z 2The time, then enter step c;
B, tire pressure adjustment mechanism carry out step-down to tire, reduce to specified value up to tire pressure;
C, tire pressure adjustment mechanism boost to tire, rise to specified value up to tire pressure.
When automobile needs bigger propelling thrust or braking force, reduce tire pressure by tire pressure adjustment mechanism.Automobile quick start, on need bigger propelling thrust during situations such as big slope and windage are big, when automobile at snap catch, Xia Dapo, then need bigger braking force during occasion such as sharply turning fast, the pressure that reduces tire in these cases can guarantee that automobile has enough propelling thrusts and safety; And when automobile needed less propelling thrust or braking force, control improved tyre pressure, reduced automobile fuel consumption.
The required propelling thrust T of automobile 0At T 1And T 2Between, or required braking force Z 0At Z 1And Z 2Between the time, tire pressure can remain unchanged, and can prevent that so the pressure control of tire is too frequent.
In above-mentioned a kind of motor tire intelligent pressure control method, among the described step a, at first judge required propelling thrust T 0Size, if required propelling thrust T 0Greater than T 1, then directly enter step b; If required propelling thrust T 0Less than T 2, carry out required braking force Z again 0Judgement.
In above-mentioned a kind of motor tire intelligent pressure control method, if required braking force Z 0Greater than Z 1The time, enter step b; If required braking force Z 0Less than Z 2The time, then enter step c.
The required propelling thrust T of automobile 0With required braking force Z 0Can not coexist in the ordinary course of things, therefore not need these two are detected constantly, generally earlier only detect one, detect another again when need waiting.
In above-mentioned a kind of motor tire intelligent pressure control method, among the described step a, at first judge required braking force Z 0Size, if required braking force Z 0Greater than Z 1, then directly enter step b; If required braking force Z 0Less than Z 2, carry out required propelling thrust T again 0Judgement.
In above-mentioned a kind of motor tire intelligent pressure control method, if required propelling thrust T 0Greater than T 1The time, enter step b; If required propelling thrust T 0Less than T 2The time, then enter step c.
In above-mentioned a kind of motor tire intelligent pressure control method, among the described step a, T 1=T 2, Z 1=Z 2Work as T 1=T 2, Z 1=Z 2The time, the braking each time of automobile and acceleration each time no matter its braking degree and acceleration degree all can be carried out the adjusting of tire pressure, make the energy-saving effect of automobile and safety must reach maximization.
In above-mentioned a kind of motor tire intelligent pressure control method, described tire pressure adjustment mechanism comprises control module and compressed air source, described compressed air source is connected with motor tire by a pipeline, the outlet branch that described pipeline is provided with charge valve and is connected with pipeline, outlet branch is provided with aie escape valve, and described control module can be by the break-make situation of charge valve and aie escape valve difference pilot piping and outlet branch.
In the time of need boosting to tire pressure, control module control charge valve is opened, and aie escape valve is closed simultaneously, and to automobile tyre inflation, when tire pressure reached requirement, closed by charge valve by pipeline for compressed air source.When needs carry out step-down to tire pressure, control module control charge valve is in closed condition, simultaneously aie escape valve is opened, motor tire is exitted to the external world by pipeline and outlet branch, reduce tyre inner pressure with this, after pressure drops to a certain degree, closed by control module control aie escape valve, this process charge valve remains closed condition again.
In above-mentioned a kind of motor tire intelligent pressure control method, be provided with a sealed air chamber between described charge valve and the motor tire, the sealing air chamber be arranged on the pipeline and with pipeline to being communicated with.Buffer action plays in sealed air chamber.
In above-mentioned a kind of motor tire intelligent pressure control method, described sealed air chamber comprises second air chamber and first air chamber that sets gradually along the gas inflated direction, wherein first air chamber can rotate synchronously with motor tire, and described first air chamber and second air chamber are tightly connected and can relatively rotate.Sealed air chamber is divided into first air chamber and second air chamber that links together, and first air chamber can be captiveed joint with the rotating shaft that tire or tire on the drive wheels rotate, and second air chamber then can be captiveed joint with respect to the fixed position of auto body with tire support or other.So, vehicle in motion, first air chamber that sealed air chamber relies on motor tire together rotates with tire and rotating shaft, can relatively rotate between first air chamber and second air chamber, therefore can guarantee when vehicle ' that this this section pipeline and compressed air source on one side of second air chamber can not rotate with tire motion, makes connection line unaffected.
In above-mentioned a kind of motor tire intelligent pressure control method, described compressed air source is air compressor or high-pressure gas cylinder.
Compared with prior art, this motor tire intelligent pressure control method utilize required braking force and required propelling thrust in the vehicle traveling process what immediately tire pressure is regulated so that automobile travels, thereby realize vehicle energy saving under most economical air pressure.Moreover, this technology also can improve the safety and the service life that prolongs parts such as wheel of automobile.
Description of drawings
Fig. 1 is the logical flow chart of this motor tire intelligent pressure control method among the embodiment one.
Fig. 2 is the structure principle chart of tire pressure adjustment mechanism among the present invention.
Fig. 3 is the logical flow chart of this motor tire intelligent pressure control method among the embodiment two.
Among the figure, 1, tire; 2, sealed air chamber; 21, first air chamber; 22, second air chamber; 3, pipeline; 31, charge valve; 4, outlet branch; 41, aie escape valve; 5, compressed air source.
The specific embodiment
Below be specific embodiments of the invention and in conjunction with the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
Embodiment one
As shown in Figure 1, this motor tire intelligent pressure control method utilizes a tire pressure adjustment mechanism that the pressure of tire is regulated, and this control method comprises the steps:
A1, the required propelling thrust T of detection automobile 0Size, if required propelling thrust T 0Greater than T 1, then enter step b; If required propelling thrust T 0Less than T 2, then enter step a2;
A2, the required braking force Z of detection automobile 0Size, if required propelling thrust Z 0Greater than Z 1, then enter step b; If required braking force Z 0Less than Z 2, then enter step c;
B, tire pressure adjustment mechanism carry out step-down to tire, reduce to specified value up to tire pressure;
C, tire pressure adjustment mechanism boost to tire, rise to specified value up to tire pressure.
Automobile reduces tire pressure by tire pressure adjustment mechanism when bigger propelling thrust of needs or braking force.Automobile quick start, on need bigger propelling thrust during situations such as big slope and windage are big, when automobile at snap catch, Xia Dapo, then need bigger braking force during occasion such as sharply turning fast, the pressure that reduces tire in these cases can guarantee that automobile has enough propelling thrusts and safety; And when automobile needed less propelling thrust or braking force, control improved tyre pressure, reduced automobile fuel consumption.
As shown in Figure 2, in the present embodiment, tire pressure adjustment mechanism comprises control module and compressed air source 5, and compressed air source 5 is connected with motor tire 1 by pipeline 3, the outlet branch 4 that pipeline 3 is provided with charge valve 31 and is connected with pipeline 3, outlet branch 4 is provided with aie escape valve 41.
Be provided with a sealed air chamber 2 between charge valve 31 and the motor tire 1, sealing air chamber 2 comprises second air chamber 22 and first air chamber 21 that sets gradually along the gas inflated direction, and the automobile rotating shaft runs through sealing air chamber 2.Wherein first air chamber 21 is captiveed joint with the automobile rotating shaft and can be rotated synchronously with the automobile rotating shaft, and 22 of second air chambers are fixed on the wheel stand, and can rotate with respect to first air chamber 21.Two air chambers and the external world can adopt mechanical seal or packing seal, and first air chamber 21 is communicated with motor tire 1 by pipeline 3, and second air chamber 22 then passes through pipeline 3 and is communicated with compressed air source 5.In the present embodiment, compressed air source 5 is an air compressor.
In the time of need boosting to tire 1, control module control charge valve 31 is opened, and aie escape valve 41 is closed simultaneously, and to motor tire 1 inflation, when tire 1 pressure reached requirement, closed by charge valve 31 by pipeline 3 for compressed air source 5.When needs carry out step-down to tire 1, control module control charge valve 31 is in closed condition, simultaneously aie escape valve 41 is opened, motor tire 1 is exitted to the external world by pipeline 3 and outlet branch 4, reduce tire 1 internal pressure with this, after pressure drops to a certain degree, closed by control module control aie escape valve 41, this process charge valve 31 remains closed condition again.
Control module in the tire pressure adjustment mechanism can be used as a node on the bus system, the state of quick start, snap catch can be judged by the engine speed and the vehicle speed signal that receive from vehicle-mounted CAN bus network, also can judge, can certainly manually control the gas that charges and discharge of tire and operate from the degree of trampling of throttle and brake; Sharply turning can direction of passage dish bump steer rate be judged fast, thereby the accuracy control tire boosts and step-down.Tire pressure adjustment mechanism in present embodiment can carry out the tire pressure adjustment, also has other relevant art also can realize the technical program in the prior art, just repeats no more at this.
Calculate with car weight 1.5t, the suffered rolling frictional resistance of weight 3t car is suitable when the rolling frictional resistance of its 2.5 kilograms of air pressure and 5 kilograms of air pressure; In other words, but overloading 1.5t weight and consumed power does not increase during 5 kilograms of air pressure.The suffered rolling frictional resistance of weight 0.75t car is suitable when the rolling frictional resistance of its 5 kilograms of air pressure and 2.5 kilograms of air pressure; 0.75t weight institute consumed power when in other words, having reduced 2.5 kilograms during 5 kilograms of air pressure.
According to existing observed data, when 2.5 kilograms of air pressure, the every increase of car 10kg load, the every 1000km that travels will increase oil consumption 0.4L.Every 100km can save the about 3L of oil consumption after can calculating minimizing 0.75t load thus, and oil consumption relatively at present can save 30~35%, and energy-saving effect is remarkable.
Anticyclonic pressure can reduce the deflection of tire face, and the reverse stress of the more little then tire of deflection is more little, makes the time expand of the endurance failure of tire, thereby tire is prolonged service life; Can reduce the temperature rise of tire when particularly travelling for a long time at a high speed, make running car also safer; Tire pressure is in control process, need constantly the pressure in the tire to be detected, on the one hand can be to carrying out pressure feedback in the tire pressure adjustment process, prevent to boost or step-down excessive, can prevent other harm that produce owing to tire deficency insufficient pressure on the other hand.According to required propelling thrust of automobile and required braking force size, the gas charging degree of tire and venting degree be respective change thereupon also, is as the criterion so that automobile satisfies the best effect of travelling.Tire pressure can become electric signal by pressure sensor and cause the dial plate demonstration, and this technology is easier to realize than other tire pressure measurement technology (comprising TPMS).
Embodiment two
As shown in Figure 3, present embodiment is similar to embodiment one, and distinctive points is: in step a, at first to the required braking force Z of automobile 0Judge, according to judged result again to required propelling thrust T 0Judge.
Specific embodiment described herein only is that spirit of the present invention is made casehistory.The technical personnel of the technical field of the invention can be made various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.

Claims (10)

1. a motor tire intelligent pressure control method utilizes a tire pressure adjustment mechanism that the pressure of tire (1) is regulated, and it is characterized in that this control method comprises the steps:
A, the required propelling thrust T of detection automobile 0With braking force Z 0Size, if required propelling thrust T 0Greater than T 1Or required braking force Z 0Greater than Z 1The time, enter step b; If required propelling thrust T 0Less than T 2And required braking force Z 0Less than Z 2The time, then enter step c;
B, tire pressure adjustment mechanism carry out step-down to tire (1), up to tire (1) differential pressure to specified value;
C, tire pressure adjustment mechanism boost to tire (1), rise to specified value up to tire (1) pressure.
2. a kind of motor tire intelligent pressure control method according to claim 1 is characterized in that, among the described step a, at first judges required propelling thrust T 0Size, if required propelling thrust T 0Greater than T 1, then directly enter step b; If required propelling thrust T 0Less than T 2, carry out required braking force Z again 0Judgement.
3. a kind of motor tire intelligent pressure control method according to claim 2 is characterized in that, if required braking force Z 0Greater than Z 1The time, enter step b; If required braking force Z 0Less than Z 2The time, then enter step c.
4. a kind of motor tire intelligent pressure control method according to claim 1 is characterized in that, among the described step a, at first judges required braking force Z 0Size, if required braking force Z 0Greater than Z 1, then directly enter step b; If required braking force Z 0Less than Z 2, carry out required propelling thrust T again 0Judgement.
5. a kind of motor tire intelligent pressure control method according to claim 4 is characterized in that, if required propelling thrust T 0Greater than T 1The time, enter step b; If required propelling thrust T 0Less than T 2The time, then enter step c.
6. according to any described a kind of motor tire intelligent pressure control method of claim 1~5, it is characterized in that, among the described step a, T 1=T 2, Z 1=Z 2
7. according to any described a kind of motor tire intelligent pressure control method of claim 1~5, it is characterized in that, described tire pressure adjustment mechanism comprises control module and compressed air source (5), described compressed air source (5) is connected with motor tire (1) by a pipeline (3), the outlet branch (4) that described pipeline (3) is provided with charge valve (31) and is connected with pipeline (3), outlet branch (4) is provided with aie escape valve (41), and described control module can be passed through the break-make situation of charge valve (31) and aie escape valve (41) difference pilot piping (3) and outlet branch (4).
8. a kind of motor tire intelligent pressure control method according to claim 7, it is characterized in that, be provided with a sealed air chamber (2) between described charge valve (31) and the motor tire (1), sealing air chamber (2) be arranged on that pipeline (3) is gone up and with pipeline (3) to being communicated with.
9. a kind of motor tire intelligent pressure control method according to claim 8, it is characterized in that, described sealed air chamber (2) comprises second air chamber (22) and first air chamber (21) that sets gradually along the gas inflated direction, wherein first air chamber (21) can rotate synchronously with motor tire (1), and described first air chamber (21) and second air chamber (22) are tightly connected and can relatively rotate.
10. a kind of motor tire intelligent pressure control method according to claim 7 is characterized in that described compressed air source (5) is air compressor or high-pressure gas cylinder.
CN 201010595177 2010-12-20 2010-12-20 Intelligent automobile tire pressure control method Pending CN102069687A (en)

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Application Number Priority Date Filing Date Title
CN 201010595177 CN102069687A (en) 2010-12-20 2010-12-20 Intelligent automobile tire pressure control method

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Application Number Priority Date Filing Date Title
CN 201010595177 CN102069687A (en) 2010-12-20 2010-12-20 Intelligent automobile tire pressure control method

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104442223A (en) * 2014-11-08 2015-03-25 胡浩茫 Intercommunicated pipeline system
CN105365500A (en) * 2015-12-07 2016-03-02 徐州猎奇商贸有限公司 Vehicle tyre pressure control system
CN106476541A (en) * 2016-11-03 2017-03-08 赵旭 A kind of braking tire pressure control system
CN108583170A (en) * 2018-05-23 2018-09-28 浙江吉利汽车研究院有限公司 A kind of tire self aligning system and method
CN113263873A (en) * 2020-02-17 2021-08-17 建大工业股份有限公司 Tire assembly and method for improving tire grip
CN114506187A (en) * 2022-02-09 2022-05-17 岚图汽车科技有限公司 Vehicle tire pressure control method, device and system and vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4012540A1 (en) * 1990-04-19 1990-09-27 Johannes Buck Vehicle tyre adhesion control circuit - has microprocessor coupled to magnetic valves for controlled tyre inflation dependent on applied braking
JPH02310111A (en) * 1989-05-23 1990-12-25 Nissan Motor Co Ltd Tire
DE10202993A1 (en) * 2002-01-26 2003-07-31 Continental Ag Increasing forces transferable between tire and road involves varying tire contact surface during travel by controllably varying tire air pressure, with pressure reducable during braking
CN101480945A (en) * 2009-01-22 2009-07-15 孙继辉 Energy-saving method and special equipment for motor vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02310111A (en) * 1989-05-23 1990-12-25 Nissan Motor Co Ltd Tire
DE4012540A1 (en) * 1990-04-19 1990-09-27 Johannes Buck Vehicle tyre adhesion control circuit - has microprocessor coupled to magnetic valves for controlled tyre inflation dependent on applied braking
DE10202993A1 (en) * 2002-01-26 2003-07-31 Continental Ag Increasing forces transferable between tire and road involves varying tire contact surface during travel by controllably varying tire air pressure, with pressure reducable during braking
CN101480945A (en) * 2009-01-22 2009-07-15 孙继辉 Energy-saving method and special equipment for motor vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104442223A (en) * 2014-11-08 2015-03-25 胡浩茫 Intercommunicated pipeline system
CN105365500A (en) * 2015-12-07 2016-03-02 徐州猎奇商贸有限公司 Vehicle tyre pressure control system
CN106476541A (en) * 2016-11-03 2017-03-08 赵旭 A kind of braking tire pressure control system
CN108583170A (en) * 2018-05-23 2018-09-28 浙江吉利汽车研究院有限公司 A kind of tire self aligning system and method
CN113263873A (en) * 2020-02-17 2021-08-17 建大工业股份有限公司 Tire assembly and method for improving tire grip
CN114506187A (en) * 2022-02-09 2022-05-17 岚图汽车科技有限公司 Vehicle tire pressure control method, device and system and vehicle

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Application publication date: 20110525