CN102463970A - Automobile short-distance braking control device and automobile short-distance braking control method using same - Google Patents
Automobile short-distance braking control device and automobile short-distance braking control method using same Download PDFInfo
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- CN102463970A CN102463970A CN2011102841402A CN201110284140A CN102463970A CN 102463970 A CN102463970 A CN 102463970A CN 2011102841402 A CN2011102841402 A CN 2011102841402A CN 201110284140 A CN201110284140 A CN 201110284140A CN 102463970 A CN102463970 A CN 102463970A
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Abstract
The invention discloses an automobile braking control device and a method and provides an automobile short-distance braking control device and an automobile short-distance braking control method using the same; automobile tire pressure can be reduced rapidly in a short time, so that the area of each tire in contact with the ground is increased, the frictional force between the tires and the ground is increased, the braking distance of the vehicle is shortened, and the collision of the moving vehicle against front vehicles or barriers is avoided; the automobile short-distance braking control device and the automobile short-distance braking control method solve the technical problems that a vehicle braking at an emergent state in the prior art can stop after slipping for a long distance by inertia along the road surface, and the vehicle easily collides with the front vehicles or barriers, resulting in safety accidents. During the vehicle moving process, the space and the relative speed between the vehicle and the front vehicles or barriers are detected by using radar; when detecting that the collision can be avoided by using emergent braking, the radar sends a signal to an ECU (Electronic Control Unit); the ECU sends a signal to an intelligent tire deflation device after calculation and a deflation valve is opened by the intelligent tire deflation device to deflate, so that the tire pressure is reduced to a setting value in a short time.
Description
Technical field
The present invention relates to the braking control device and the method for automobile; Relate in particular to a kind of short range in case of emergency and stop, thereby avoid automobile short range braking control device that driving vehicle and front vehicles or obstacle collide and the automobile short range brake control method that adopts this device.
Background technology
In order to reduce the resistance to motion of vehicle; Usually the tire pressure of automobile is relatively more sufficient, and the effective area of contact between tire and ground is little at this moment, and friction force is little; But when some in emergency circumstances needs emergency braking; Especially in the time of need vehicle being stopped in very short distance with in the time, little just because of the friction force between tire and ground, vehicle can could stop behind the very long segment distance of road surface inertia slippage behind the sudden stop fully; Therefore in order to prevent that vehicle and front vehicles or obstacle from bumping, need to shorten the inertia skidding distance of vehicle.
Chinese patent " urgent braking device of automobile (ZL94205247. 1) " discloses a kind of system device that can shorten the automobile brake distance; This device is with short range brake pedal that is installed on operator's compartment pedal of clutch left side and the serration cam control controller on the pedal arm axle sleeve; Controller makes actr accomplish top gear and extracts; Hang reverse, make power-transfer clutch, brake pedal is little lifts, throttle strengthens.This device is through under the situation of emergency brake of vehicle, extracts high speed gear rapidly, and changes the extension reverse and realize the friction of counter-rotating of short duration original place; To reduce the advancing slip inertia of automobile, shorten stopping distance, reach the purpose of traffic safety; But under the state of high forward, hang reverse gear when going, bigger to the damage of vehicle, even and the wheel reversing; Tire and ground-surface area of contact do not change; The friction force that is the two does not have change, and vehicle can could stop behind the very long segment distance of road surface inertia slippage equally fully thus, therefore exists vehicle and in the time vehicle to be stopped in very short distance equally; Very easily bump, cause problems such as safety misadventure with front vehicles or obstacle.
Summary of the invention
The present invention has mainly provided and a kind ofly can reduce automotive tire pressure at short notice rapidly; Tire and ground-surface area of contact are increased; And then increase tire and ground-surface friction force, thus shorten the vehicle braked distance, avoid automobile short range braking control device that driving vehicle and front vehicles or obstacle collide and the automobile short range brake control method that adopts this device; When having solved the vehicle that exists in the prior art and under the emergency state, having braked; Vehicle can just can stop after apart from the inertia slippage along road surface length, thereby very easily bumps with front vehicles or obstacle, causes the technical matters of safety misadventure etc.
Above-mentioned technical matters of the present invention mainly is able to solve through following technical proposals: a kind of automobile short range braking control device; Comprise wheel rim and be set in the outer tire of wheel rim; On said wheel rim, be provided with several discharging air pipes; One end of said discharging air pipe is communicated in the gas storage chamber of tire, and the other end of said discharging air pipe is provided with the intelligent tire bleeding device, and said intelligent tire bleeding device is through solenoid electric valve control discharging air pipe and extraneous conducting.Through a plurality of discharging air pipes are set separately on wheel rim, when vehicle braked under the emergency state, the front and back tire of vehicle can be through a plurality of discharging air pipes while bleeds; Thereby can in the shortest time, make tire pressure be reduced to setting value; Tire that pressure reduces and ground-surface area of contact increase, and friction force strengthens, thereby vehicle is braking after short range can be stopped after sliding; Farthest avoided and front vehicles or obstacle collision, safety is good; Control the switch of discharging air pipe through the intelligent tire bleeding device that has solenoid electric valve, can make the step-down deflation course realize automation, be convenient under the emergency state, coordinate tire and exit synchronously.
As preferably; Said intelligent tire bleeding device comprises that level is located at the double tubular valve body of wheel rim side, and the outer tube outside the double tubular valve body is managed by interior pipe and in being set in is formed, and on the outer face of said tubular valve body, is provided with the outer valve cover plate; On the inner end surface of said tubular valve body, be provided with the inner valve body cover plate; Between the inner and outer pipes of double tubular valve body, slidely connect annular spool, form power cavity between the inner end surface of said annular spool and inner valve body cover plate, form inflatable chamber between the outer face of said annular spool and outer valve cover plate; On said outer valve cover plate, be provided with inflation inlet; On said inner valve body cover plate, be provided with several relief ports, the external side end of said discharging air pipe passes outer tube wall and power cavity is conducted, and said solenoid electric valve is located on the periphery of double tubular valve body outer tube and is driven annular spool horizontal slip between inner and outer pipes.By the valve body that inner and outer pipe constitutes, the valve body of hollow circle tube can satisfy the requirement of thrust, can make integral structure more compact again, helps the kinetic balance of wheel rim simultaneously; During venting; Break away moving to inflatable chamber through solenoid electric valve control annular spool; Expose the discharging air pipe interface on the valve body, the high pressure gas in the tire are discharged through a plurality of relief ports on the valve body after discharging air pipe gets into power cavity more synchronously, unified control of a plurality of discharging air pipes and venting synchronously; Venting speed is fast, and balance is good.In addition, the inflation inlet that is communicated with inflatable chamber also can be used for the fast aeration of tire.
As more preferably, between said outer valve cover plate and annular spool, be provided with retracing spring.When bleeding a tire, close discharging air pipe after through retracing spring annular spool being resetted fast to setting value.
As preferably; Said solenoid electric valve is the electromagnetic priority valve of two-position five-way; The admission port of said solenoid electric valve is connected with the gas storage chamber of tire through first conduit, and first air extractor duct of said solenoid electric valve is connected with inflatable chamber, and second air extractor duct is connected with power cavity.The effect of electromagnetic priority valve is to control the action of gas control valve core of main valve, and therefore the volume of itself need not to do very greatly, thereby helps reducing the volume of corresponding direct supply as far as possible, and prolongs the time of its use.Electromagnetic priority valve is to promote the annular spool action through the high pressure gas in the tire; Amplification with a power, thus the volume of valve body can do bigger, it is bigger that corresponding power cavity also can be done; Thereby help the quick venting of tire, to reach the effect of quick venting.
As preferably, the parallel annular connecting plate that is folded with between said intelligent tire bleeding device and wheel rim, the relief port on the said intelligent tire bleeding device is positioned at the mesopore of annular connecting plate.Annular connecting plate helps the Fast Installation and the dismounting of whole intelligent tire bleeding device, is convenient to realize modular design, convenient installation on different vehicle.
As preferably, said discharging air pipe on said intelligent tire bleeding device, be provided with 2 to 3 solenoid electric valves, and the first conduit on the said solenoid electric valve is distributed between discharging air pipe uniformly along the circumferencial direction rectangular distribution of wheel rim.Because the action of annular spool control by a plurality of solenoid electric valves, so helps improving the aeration speed of its power cavity, make the annular spool can be in the moment quick travel, with the venting speed of further raising tire.Elder generation's conduit is provided with discharging air pipe on the circumferencial direction of wheel rim equably at interval, helps the kinetic balance of wheel rim.
A kind of automobile short range brake control method, this method comprises the steps:
First step: the discharging air pipe that several are used for urgent venting is set respectively on the wheel rim of the front and rear wheel of vehicle; Wherein the discharging air pipe quantity on the front-wheel wheel rim is less than the discharging air pipe quantity on the trailing wheel wheel rim; And be connected on the intelligent tire bleeding device corresponding to the discharging air pipe on the same wheel rim, the intelligent tire bleeding device is controlled the switch of discharging air pipe through the solenoid electric valve that links to each other with ECU;
Second step: be used for the radar of real-time detection and front vehicles or obstacle distance in the installed in front of carbody, radar links to each other with ECU;
Third step: ECU according to detections of radar to real-time detection information judge whether can and front vehicles or obstacle inevitably collision takes place;
The 4th step: if when ECU judgement and front vehicles or obstacle can take place inevitably to collide; ECU is when the control brake device is carried out emergency brake; The solenoid electric valve of controlling again on the front and rear wheel wheel rim is opened simultaneously; The forward and backward tire solenoid electric valve of exitting fast to the setting value cuts out, and vehicle stops; If ECU judges that in the time of can not bumping with front vehicles or obstacle, vehicle keeps the current driving state.
Vehicle in the process of moving, the distance and the relative velocity of the detection constantly of the radar of car body front side and front vehicles or obstacle, radar will detect information and send to ECU again in real time; Whether the continuous analysis and judgement of ECU can bump, and gets into the place ahead of driving vehicle suddenly and is positioned in the safety distance as vehicle or obstacle, when the ECU judgement can bump; ECU transmits a signal to drg and carries out emergency brake, and ECU transmits a signal to the intelligent tire bleeding device on the front and rear wheel wheel rim again simultaneously, and the solenoid electric valve on the intelligent bleeding device is opened simultaneously; Discharging air pipe on the front and rear wheel wheel rim is opened outside venting simultaneously; Owing to be that a plurality of discharging air pipes are exitted simultaneously, therefore the front and back wheel air pressure is descended rapidly, forward and backward tire and contact area of ground increase; Friction force increases; Driving vehicle is stopped according to tire and ground-surface friction force short range after brake, simultaneously because the discharging air pipe quantity on the trailing wheel wheel rim is more than front-wheel, therefore in identical deflation time inner rear wheel pressure drop greater than front-wheel; Avoided vehicle to issue before death thus and turned over, improved the stability and the safety of vehicle at the anxious state of stopping.
As preferably, on the front-wheel wheel rim of said driving vehicle, be provided with 2 to 3 discharging air pipes, discharging air pipe quantity is 2 to 3 times of discharging air pipe quantity on the front-wheel wheel rim on the trailing wheel wheel rim, and discharging air pipe is at front-wheel or trailing wheel wheel rim upper edge circumferencial direction rectangular distribution.The quantity of discharging air pipe rationally is set on front and rear wheel; Not only can make the coasting distance of driving vehicle after brake the shortest; And can improve vehicle in the stability of brake in the deflation course, and when avoiding bumping with front truck, the safety that has improved driving vehicle itself.
As preferably, in said tire, be provided with pressure sensor, said ECU is through the switch of the venting valve of pressure sensor control tire.Tire pressure is excessive or too smallly all can reduce tire and frictional ground force, but through pressure sensor detection wheel air pressure, tire pressure is remained in the reasonable range, and the friction force when realizing brake between tire and ground is maximum.
As preferably, when bleeding a tire of trailing wheel normobaric 60% to 70% to tire, the bleeding a tire to tire normobaric 70% to 80% o'clock of front-wheel, ECU control solenoid electric valve cuts out, front and rear wheel stops venting.Tire pressure is too high and cross the low friction force between tire and ground that all is unfavorable for increasing during brake, and when tire pressure is normobaric 60% to 70% the time, the friction force between tire and ground reaches maxim, thereby guarantees that the car brakeing distance is the shortest.In order to improve the stability of vehicle operating, suitably reduce the discharge quantity of front-wheel.
Therefore; A kind of automobile short range brake control method of the present invention has following advantage: in the vehicle ' process; Through the distance and the relative velocity of detections of radar vehicle and front vehicles or obstacle, when detections of radar to the needs emergency braking could crash-avoidance the time, radar sends to ECU with signal; ECU is through sending signal to tire intelligence bleeding device after the computing; Solenoid electric valve is opened the outwards venting simultaneously of the discharging air pipe of back on the front and rear wheel, and the pressure sensor in the tire sends signal to ECU, and current tire pressure reduces to 60% to 70%, rear tyre air pressure was reduced to 70% to 80% o'clock; ECU sends signal to tire intelligence bleeding device, stops venting after solenoid electric valve cuts out.Reduce to normobaricly 60% to 70% the time when tire pressure, the friction force between tire and ground is maximum, and braking distance is the shortest, and the rear tyre pressure drop prevents to turn over before the vehicle during greater than front tyre, has increased the safety of vehicle.
Description of drawings:
Fig. 1 is the structural representation of a kind of automobile short range of the present invention braking control device;
Fig. 2 is the diagram of circuit of the inventive method;
Fig. 3 is the scheme of installation of discharging air pipe among the present invention.
The specific embodiment:
Pass through embodiment below, and combine accompanying drawing, do further bright specifically technical scheme of the present invention.
Embodiment 1:
A kind of automobile short range braking control device of the present invention and adopt the automobile short range brake control method of this device; As shown in Figure 1; Comprise wheel rim 1 and be enclosed within the tire outside the wheel rim 1, six roots of sensation discharging air pipe 3 and the three first conduits 8 that are communicated with the inflation of tire chamber are set on the circumferencial direction of wheel rim 1, as shown in Figure 2; Discharging air pipe 3 and first conduit 8 be two ends have the coupling nut metallic hose; Two ends are connected on wheel rim 1 and the intelligent tire bleeding device 4 through the coupling nut respectively, and three first conduits 8 are provided with discharging air pipe 3 on the circumferencial direction of wheel rim 1 equably at interval, between promptly any two first conduits 8 all equably across two discharging air pipes 3; Intelligent tire bleeding device 4 comprises double tubular valve body 41; Double tubular valve body 41 is the hollow circle tube structures that are made up of inner and outer pipe; And between inner and outer pipe, form toroidal cavity; Inner and outer pipe outer face on the outer valve cover plate 43 of the fixing circle of welding, the inner valve body cover plate 47 of a circle of welding has an inflation inlet 46 outside on the inner end surface on the valve body cover plate 43; On corresponding to the inner valve body cover plate 47 between inner and outer pipe, have 12 relief ports 48; And 12 relief ports 48 circumference uniform distribution on the longitudinal plane of symmetry between inner and outer pipe slidely connects an annular spool 42 in the cavity between inner and outer pipe, and the step that contracts in forming corresponding to the annular spool 42 end face outer ledges of inner valve body cover plate 47 sides; 47 of the inner end surface of annular spool 42 and inner valve body cover plates form power cavity 44; 43 of the outer face of annular spool 42 and outer valve cover plates form inflatable chamber 45, and the external side end of discharging air pipe 3 and power cavity 44 are conducted, and in the inflatable chamber 45 between valve body cover plate 43 and the annular spool 42 three retracing springs 6 are housed outside; Article three, retracing spring 6 is uniformly distributed with on along the circumferential direction in inflatable chamber 45, and its two ends are connected to respectively on outer valve cover plate 43 and the annular spool 42.Wherein inner valve body cover plate 47 is through being bolted on the annular connecting plate 7; Annular connecting plate 7 is again through being bolted on wheel rim 1 lateral surface; Relief port 48 is positioned at the mesopore of annular connecting plate 7; On the outer ring surface of double tubular valve body 41, be uniformly distributed with three solenoid electric valves 5, solenoid electric valve 5 is electromagnetic priority valves of two-position five-way, and the external side end of first conduit 8 is screwed on the admission port 53 of solenoid electric valve 5; First air extractor duct 51 of solenoid electric valve 5 is connected with inflatable chamber 45, and second air extractor duct 52 is connected with power cavity 44.
During use, the coil electricity work of electromagnetic priority valve switches to second air extractor duct 52 with 8 bonded assembly admission port moments of first conduit and to be connected, and first air extractor duct 51 then is connected with first relief port, thereby makes inflatable chamber 45 pressure releases.This moment, the high pressure gas in the tire then entered in the power cavity 44 in the double tubular valve body 41 through first conduit 8, admission port 53, second air extractor duct 52, high pressure gas and then promote annular spool 42 to inflatable chamber 45 1 side shiftings, retracing spring 6 compressions; Air exhaustion in the inflatable chamber 45; This moment, the venting path of power cavity 44 was opened, power cavity 44 conductings in discharging air pipe 3 and the double tubular valve body 41, therefore; High pressure gas in the tire can be simultaneously discharged through first conduit 8 and discharging air pipe 3 mesopore moment on power cavity 44, relief port 48 and annular connecting plate 7 fast; When the tire internal gas pressure is reduced to setting value, the coil blackout of electromagnetic priority valve, retracing spring 6 promotes annular spool 42 to power cavity 44 1 side shiftings; Discharging air pipe 3 is closed, and the tire internal gas pressure is stabilized in setting value.
The automobile short range brake control method of employing said apparatus comprises the steps: as shown in Figure 3,
First step: the distance that detects in real time between driving vehicle and front vehicles through radar is 30 meters, and two cars all keep 100 kilometers/hour speed;
The real-time detection information that second step: ECU arrives according to detections of radar judges whether driving vehicle can inevitably collision take place with front vehicles;
Third step: if the unexpected reduction of speed to 20 of front vehicles kilometer/hour, ECU judges that radar sent signal to ECU when driving vehicle can inevitably collision take place with front vehicles; ECU transmits a signal to drg and carries out emergency brake, and ECU transmits a signal to the intelligent tire bleeding device again simultaneously, because intelligent bleeding device is the venting valve of electromagnetic type; The venting valve is opened venting automatically according to the ECU signal; Pressure sensor is housed in tire, and pressure sensor is sent to ECU again in real time with detected pressure information, and is normobaric 65% the time to tire when bleeding a tire; The aie escape valve that ECU control intelligent tire bleeding device is closed tire stops venting behind the door; This moment, tire and road surface friction force reached maxim, and vehicle follows to sail and stops after the road surface short range is slided, thereby had avoided producing collision with front vehicles.
Embodiment 2:
If front vehicles reduction of speed to 80 kilometer/hour; Originally the vehicle that goes reduction of speed simultaneously goes, and the distance that radar detects between driving vehicle and front vehicles in real time still is 30 meters, and ECU judges that it can not bump with front vehicles; Vehicle keeps the current driving state, and remainder is identical with embodiment 1.
Specific embodiment described herein only is that casehistory is made in design of the present invention.Person of ordinary skill in the field of the present invention can make 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. automobile short range braking control device; Comprise wheel rim (1) and be set in the outer tire of wheel rim (1); It is characterized in that: on said wheel rim (1), be provided with several discharging air pipes (3); One end of said discharging air pipe (3) is communicated in the gas storage chamber of tire, and the other end of said discharging air pipe (3) is provided with intelligent tire bleeding device (4), and said intelligent tire bleeding device (4) is through solenoid electric valve (5) control discharging air pipe (3) and extraneous conducting.
2. a kind of automobile short range braking control device according to claim 1; It is characterized in that: said intelligent tire bleeding device (4) comprises that level is located at the double tubular valve body (41) of wheel rim (1) side; Double tubular valve body (41) is managed outer outer tube by interior pipe and in being set in and is formed; On the outer face of said tubular valve body (41), be provided with outer valve cover plate (43); On the inner end surface of said tubular valve body (41), be provided with inner valve body cover plate (47); Between the inner and outer pipes of double tubular valve body (41), slidely connect annular spool (42), form power cavity (44) between the inner end surface of said annular spool (42) and inner valve body cover plate (47), form inflatable chamber (45) between the outer face of said annular spool (42) and outer valve cover plate (43); On said outer valve cover plate (43), be provided with inflation inlet (46); On said inner valve body cover plate (47), be provided with several relief ports (48), the external side end of said discharging air pipe (3) passes outer tube wall and power cavity (44) is conducted, and said solenoid electric valve (5) is located on the periphery of double tubular valve body (41) outer tube and is driven annular spool (42) horizontal slip between inner and outer pipes.
3. a kind of automobile short range braking control device according to claim 2 is characterized in that: between said outer valve cover plate (43) and annular spool (42), be provided with retracing spring (6).
4. according to claim 1 or 2 or 3 described a kind of automobile short range braking control devices; It is characterized in that: said solenoid electric valve (5) is the electromagnetic priority valve of two-position five-way; The admission port (53) of said solenoid electric valve (5) is connected with the gas storage chamber of tire through first conduit (8); First air extractor duct (51) of said solenoid electric valve (5) is connected with inflatable chamber (45), and second air extractor duct (52) is connected with power cavity (44).
5. according to claim 1 or 2 or 3 described a kind of automobile short range braking control devices; It is characterized in that: the parallel annular connecting plate (7) that is folded with between said intelligent tire bleeding device (4) and wheel rim (1), the relief port (48) on the said intelligent tire bleeding device (4) is positioned at the mesopore of annular connecting plate (7).
6. according to claim 1 or 2 or 3 described a kind of automobile short range braking control devices; It is characterized in that: said discharging air pipe (3) is along the circumferencial direction rectangular distribution of wheel rim (1); On said intelligent tire bleeding device (4), be provided with 2 to 3 solenoid electric valves (5), and the first conduit (8) on the said solenoid electric valve (5) is distributed in uniformly between discharging air pipe (3).
7. automobile short range brake control method that adopts the said device of claim 1, it is characterized in that: this method comprises the steps:
First step: the discharging air pipe that several are used for urgent venting is set respectively on the wheel rim of the front and rear wheel of vehicle; Wherein the discharging air pipe quantity on the front-wheel wheel rim is less than the discharging air pipe quantity on the trailing wheel wheel rim; And be connected on the intelligent tire bleeding device corresponding to the discharging air pipe on the same wheel rim, the intelligent tire bleeding device is controlled the switch of discharging air pipe again through the solenoid electric valve that links to each other with ECU;
Second step: be used for the radar of real-time detection and front vehicles or obstacle distance in the installed in front of carbody, radar links to each other with ECU;
Third step: ECU according to detections of radar to real-time detection information judge whether can and front vehicles or obstacle inevitably collision takes place;
The 4th step: if when ECU judgement and front vehicles or obstacle can take place inevitably to collide; ECU is when the control brake device is carried out emergency brake; The solenoid electric valve of controlling again on the front and rear wheel wheel rim is opened simultaneously; The forward and backward tire solenoid electric valve of exitting fast to the setting value cuts out, and vehicle stops; If ECU judges that in the time of can not bumping with front vehicles or obstacle, vehicle keeps the current driving state.
8. a kind of automobile short range brake control method according to claim 7; It is characterized in that: on the front-wheel wheel rim of said driving vehicle, be provided with 2 to 3 discharging air pipes; Discharging air pipe quantity is 2 to 3 times of discharging air pipe quantity on the front-wheel wheel rim on the trailing wheel wheel rim, and discharging air pipe is at front-wheel or trailing wheel wheel rim upper edge circumferencial direction rectangular distribution.
9. according to claim 7 or 8 described a kind of automobile short range brake control methods, it is characterized in that: in said tire, be provided with pressure sensor, said ECU is through the electromagnetic control threshold switch of pressure sensor control.
10. according to claim 7 or 8 described a kind of automobile short range brake control methods; It is characterized in that: when bleeding a tire of trailing wheel to tire normobaric 60% to 70%; Bleeding a tire to tire normobaric 70% to 80% o'clock of front-wheel; ECU control solenoid electric valve cuts out, and front and rear wheel stops venting.
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| CN 201110284140 CN102463970B (en) | 2011-09-23 | 2011-09-23 | Automobile short-distance braking control device and automobile short-distance braking control method using same |
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| CN103407334A (en) * | 2013-05-06 | 2013-11-27 | 于绪东 | Automobile remote monitoring and control system |
| CN103538579A (en) * | 2012-07-10 | 2014-01-29 | 许伟庆 | Automobile braking distance shortening device |
| CN104442643A (en) * | 2014-11-06 | 2015-03-25 | 张来涛 | Wheel pressure reduction type traffic collision protection device |
| CN104442644A (en) * | 2014-11-06 | 2015-03-25 | 张来涛 | Active inflation type loss reduction system |
| CN104442225A (en) * | 2014-11-08 | 2015-03-25 | 董超 | Automobile body system with chassis having stress sensor |
| CN107512141A (en) * | 2017-08-31 | 2017-12-26 | 上海航盛实业有限公司 | A kind of system for detecting tire pressure |
| CN107962914A (en) * | 2017-11-15 | 2018-04-27 | 北京汽车股份有限公司 | For vehicle vehicle wheel component and there is its vehicle |
| CN111661020A (en) * | 2020-05-13 | 2020-09-15 | 北京新能源汽车股份有限公司 | Vehicle and braking method and system thereof |
| WO2023284335A1 (en) * | 2021-07-14 | 2023-01-19 | 华为技术有限公司 | Valve, tire pressure adjustment method, and tire pressure adjustment apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107962914A (en) * | 2017-11-15 | 2018-04-27 | 北京汽车股份有限公司 | For vehicle vehicle wheel component and there is its vehicle |
| CN107962914B (en) * | 2017-11-15 | 2019-12-10 | 北京汽车股份有限公司 | Wheel assembly for vehicle and vehicle with wheel assembly |
| CN111661020A (en) * | 2020-05-13 | 2020-09-15 | 北京新能源汽车股份有限公司 | Vehicle and braking method and system thereof |
| WO2023284335A1 (en) * | 2021-07-14 | 2023-01-19 | 华为技术有限公司 | Valve, tire pressure adjustment method, and tire pressure adjustment apparatus |
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| CN102463970B (en) | 2013-10-30 |
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