CN1142073C - Automatic emergency brake system for high-speed running automobile with burst tyre - Google Patents
Automatic emergency brake system for high-speed running automobile with burst tyre Download PDFInfo
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- CN1142073C CN1142073C CNB001015796A CN00101579A CN1142073C CN 1142073 C CN1142073 C CN 1142073C CN B001015796 A CNB001015796 A CN B001015796A CN 00101579 A CN00101579 A CN 00101579A CN 1142073 C CN1142073 C CN 1142073C
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- speed reducing
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- 238000004880 explosion Methods 0.000 abstract description 3
- 206010039203 Road traffic accident Diseases 0.000 description 6
- 230000006870 function Effects 0.000 description 6
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Abstract
The present invention relates to an automatic emergency braking system for the sudden explosion of a tyre when an automobile runs at high speed. The system is composed of a detection unit, a servo unit and a braking unit. The system adopts an ordinary electronic component and a universal industry component. The present invention has the working principle that the detection unit detects explosion signals, the signals are conveyed to the servo unit through a radio transmitting mode and a conducting wire transmittal mode for signal treatment, and servo power is output so as to control and drive the operation of the braking unit. After the automobile runs at high speed and the tyre is exploded, and when a driver does not react, the present invention brakes automatically and urgently, so that the automobile reduces speed to stop running.
Description
Affiliated technical field
The present invention is the automobile flat tire automatic speed reducing system, relates to automobile automatic control technology field.
Background technology
Along with building of express highway, the raising of automotive operation speed, the automobile that moves on the express highway, the principal element that traffic accident takes place is a burst tyre in the high-speed running automobile, the car crash major traffic accidents that cause therefrom account for the overwhelming majority of traffic accidents, cause the heavy losses of the person, property.
Data shows because people's physiology limitation, chaufeur to external world information (target, signal etc.) perception, judge and make brake response three processes and be called the narrow sense brake response time, under the experiment condition, narrow sense brake response time average out to 0.6～0.8 second; And chaufeur to make braking maneuver be the braking maneuver process to producing braking force, 0.3 second consuming time of this process average.Is relative brake response time from perception information to making the braking maneuver required time, and aviation value is 0.9～1.20 second.Learnt by experiment that in addition chaufeur has at the brake response time under the no mental preparation state to be prepared to prolong about 0.22 second, therefore, the chaufeur brake response time that causes by blowing out is about 1.12～1.42 seconds.The essence of brake response time is: the 1.4 second left and right sides of chaufeur behind automobile flat tire are in the time, owing to the physiology limitation forms the reaction obstacle, can't make automobile generation braking force and slow down.
Simultaneously, from blow out traffic accident example prospecting and analyzing as can be known of highway automobile, increase and the time of get out of hand (during get out of hand should not emergency braking) is about 1～1.5 second to one-sided friction force behind the automobile flat tire, automobile is 30～50 meters owing to inertia keeps the distance of normal operation, if can in this stage (distance), implement emergency braking, then can effectively reduce or avoid the blow out generation of traffic accident of express highway.
Summary of the invention
The purpose of this invention is to provide a kind of automobile flat tire automatic speed reducing system, by the inspection of tire detonator signal is picked up, adopt radio transmitting to be connected two kinds of load modes with lead, the tire detonator signal is sent to servo unit, servo unit handles and exports servo power to signal, drive controlling brake unit (brake-force generating device) moves, and reaches the function of automobile flat tire automatic deceleration.
The present invention is by the science combination of existing mature technology and general-purpose device; form the device that is independent of brake system of car; utilize the rapid reaction characteristic (0.001～0.1 second) of electronics, hydraulic component; remedy the brake response physiology limitation of chaufeur; reduce or avoid the traffic accident of blowing out; the protection personal safety reduces property damage.
The present invention is made up of detecting unit, servo unit and brake unit three parts, and the function of detecting unit is the detection wheel air pressure, and goes out signal of tyre burst by the change-detection of tire pressure; The function of servo unit is that signal amplifies, produces pulse triggering signal and power output; The function of brake unit is the accumulation of energy deposit of automatic emergency brake power and the execution of emergency braking.Principle of the invention block scheme is seen Fig. 1.
Description of drawings
Fig. 1 is the technical solution of the present invention functional block diagram.
Fig. 2 is a specific embodiment of the invention detecting unit air pressure switch constructional drawing.
Fig. 3 is a brake unit threeway directional control valve constructional drawing of the present invention.
Fig. 4 is a detecting unit electrical principle sketch of the present invention.
Fig. 5 is a servo unit electrical principle sketch of the present invention.
Fig. 6 is a brake unit hydraulic efficiency pressure system principle sketch of the present invention.
Fig. 7 is a brake unit pressure system principle sketch of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing further explanation is done in concrete enforcement of the present invention (representative embodiment):
Detecting unit air pressure detects and adopts contact and non-contact detection dual mode, the contact mode adopts air pressure switch to detect, specific embodiment can adopt the pressure switch (referring to Fig. 2) that is installed on the cranked tire valve to detect, when the tire normal operation, move on the tire internal gas pressure pull switch stem stem 9, switch is in open position; After the tire blast is lost heart, the switch stem stem resets under spring 8 power effects, and switch stem stem (copper) makes two closings of contact on the switch body 6, and inspection picks out signal of tyre burst, switch closure also starts the work of PT2262 radio telecommand emission integrated circuit, and signal is transmitted into radio system.The radio telecommand transmitter unit is installed on wheel steel ring center, provides power supply by dry storage battery, with wheel.The non-contact signal detection mode adopts sound wave (acoustic pressure) to detect, detection head adopts piezoceramics crystal or electromagnetic detection head, the powerful sound wave of tire explosion time is converted to electric signal, detection head is installed in (not with wheel) on the automobile hub, electric signal directly is sent to servo unit by lead, and the detecting unit electrical schematic diagram is referring to Fig. 4.
Servo unit is made up of forward and backward level circuit, prime receives decoding special IC, acoustic control special IC and trigging pulse circuit by radio telecommand and forms, the back level is made up of servo amplification, servo output circuit, the servo unit circuit is by the automobile power source direct supply, and the servo unit electrical schematic diagram is referring to Fig. 5.
Brake unit adopts hydraulic pressure, two kinds of system architectures of air pressure.Hydraulic efficiency pressure system is applicable to the automobile that adopts hydraulic brake system, as various model roadlices, light-duty truck, medium bus, form (referring to Fig. 6) by force lift 14, check valve 15, energy storage 16, pressure operated switch 17 (pressure relay), solenoid directional control valve 18.Force lift is by the automobile power source direct supply, the mode of operation of pressure operated switch control presssure pump, pressure oil is pressed into the energy storage accumulation of energy, solenoid directional control valve is controlled by servo unit, when the automobile flat tire automatic speed reducing system was worked, solenoid directional control valve made automatic emergency brake simulated automotive ABS anti-lock function with the output at intermittence of the frequency control braking force (pressure oil) of per second 5--10 time, improve brake efficiency, prevent skid.Pressure system is applicable to the automobile that adopts Pneumatic braking system, as large and medium-sized lorry of various models and motor omnibus, the braking force of automobile flat tire automatic speed reducing system is directly taken from the compression barrel of brake system of car, by solenoid directional control valve 19 (electromagnetism compression air brake switch) (the pressure system schematic diagram is referring to Fig. 7) in parallel with the former brake switch of automobile, electromagnetism compression air brake switch is controlled by servo unit, intermittently export braking force, simulated automotive ABS anti-lock function.
Another feature of the present invention is that the automobile flat tire automatic speed reducing system has an autonomous system of one's own, only connects with brake system of car by dedicated devices " threeway directional control valve ".The structure of threeway directional control valve such as Fig. 3, principle of work is: when the automobile flat tire automatic speed reducing system is not worked, spool post 13 is in valve body 12 left sides, by the connecting pipeline of automobile flat tire automatic speed reducing system and brake system of car, brake system of car normal operation; After tire blast, the work of automobile flat tire automatic speed reducing system, moment pressure oil output make the spool post be moved to the valve body right side, by the former brake piping of automobile, automatic emergency brake power enters the automobile brake wheel cylinder by the threeway directional control valve, and automobile brake is slowed down; The reaction obstacle after date that surpasses the people when automobile flat tire automatic speed reducing system work-hours, when chaufeur is made braking maneuver, when chaufeur depressed braking force that brake pedal produces greater than automatic emergency brake power, the spool post was shifted to the valve body left side, and automobile brake is controlled by pilot control.The employing of threeway directional control valve, avoided of the interference of automobile flat tire automatic speed reducing system to the vehicle drive performance, make the automobile flat tire automatic speed reducing system become the relief of the reaction obstacle defective that is the people, utilize the quality time of people's reaction obstacle, automatic emergency brake makes that automobile slows down rapidly, safe stagnation of movement.
Claims (4)
1, a kind of automobile flat tire automatic speed reducing system, it is characterized by: native system adopts the existing proven technique and the universal product, form the device be independent of brake system of car, this device has the braking force energy of reserve that is independent of beyond the braking force that the chaufeur braking produces, do not interfere the brake system of car attaching parts and only implement the function of automatic deceleration during the back chaufeur reaction obstacle of blowing out; System is made up of detecting unit, servo unit and brake unit three parts, and the tire detonator signal is picked up in the detecting unit inspection, and signal is sent to servo unit by radio transmitting, lead direct transmission mode; Servo unit carries out signal conditioning and produces servo energizing signal, amplifies the servo power of output; Servo horsepower output drives electromagnetic valve action in the brake unit, and the high-voltage energy-storage in the brake unit slows down automobile brake by electromagnetic valve moment output braking force.
2, automobile flat tire automatic speed reducing system according to claim 1, it is characterized in that, the brake system of car attaching parts of not interfering of this system is " threeway directional control valve ", the threeway directional control valve is made up of valve body, spool, the valve body left side connects the brake unit interface of automatic speed reducing system, the valve body right side connects the master brake cylinder interface of brake system of car, and the valve body downside connects the brake cylinder interface of brake system of car; When automobile normally moved, spool was positioned at the valve body left part, by the passage of automatic speed reducing system and brake system of car, brake system of car normal operation; After the tire blast, automatic speed reducing system moment output braking force promotes spool and moves to the valve body right part, and by the passage of automobile brake master cylinder and brake cylinder, automatic speed reducing system output braking force promotes brake cylinder and produces braking force, makes car deceleration.
3, automobile flat tire automatic speed reducing system according to claim 1, it is characterized in that contact and contactless dual mode have been picked up in the detecting unit signal inspection of this system, the contact mode detects by pressure switch to be served as, tire just often, tire pressure makes switch be in open position; After the tire blast is lost heart, switch closure, output tire detonator signal is picked up in inspection, and signal is connected with the radio telecommand transmission circuit through lead, is sent to servo unit through the radio transmission mode; The noncontact mode adopts piezoceramics crystal or electromagnetic type detection head, and detector is installed on the wheel hub, and not with wheel, inspection is picked up signal and directly is sent to servo unit by lead.
4, automobile flat tire automatic speed reducing system according to claim 1, it is characterized in that, the brake unit of this system has hydraulic efficiency pressure system and two kinds of structures of pressure system, hydraulic efficiency pressure system is formed hydraulic efficiency pressure system by force lift, check valve, energy storage, pressure operated switch, solenoid directional control valve, solenoid directional control valve is subjected to the servo unit controlling and driving, moment output braking force, and intermittently export simulated automotive ABS anti-lock function with the frequency of per second 5--10 time; The pressurized air of the former brake system of automobile is taken from the braking force source of pressure system, and solenoid directional control valve connects the work of servo unit drive controlling solenoid directional control valve, simulated automotive ABS anti-lock function with the moving switch in parallel of automobile Primordial Qi compacting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001015796A CN1142073C (en) | 2000-01-28 | 2000-01-28 | Automatic emergency brake system for high-speed running automobile with burst tyre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001015796A CN1142073C (en) | 2000-01-28 | 2000-01-28 | Automatic emergency brake system for high-speed running automobile with burst tyre |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1270895A CN1270895A (en) | 2000-10-25 |
| CN1142073C true CN1142073C (en) | 2004-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001015796A Expired - Lifetime CN1142073C (en) | 2000-01-28 | 2000-01-28 | Automatic emergency brake system for high-speed running automobile with burst tyre |
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| Country | Link |
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| CN (1) | CN1142073C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009124504A1 (en) * | 2008-04-10 | 2009-10-15 | Fu Jianzhong | A flat tire monitoring method and a flat tire monitoring device |
| CN1876409B (en) * | 2005-06-09 | 2011-07-06 | 浙江吉利控股集团有限公司 | Tyre pressure monitoring system functional improvement and enlargement technology |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847066B (en) * | 2005-04-15 | 2010-09-08 | 浙江吉利控股集团有限公司 | Composite shuttle-valve oil cylinder and the brake executing mechanism therewith for automatic control vehicle reducing system |
| CN100463811C (en) * | 2005-06-09 | 2009-02-25 | 浙江吉利控股集团有限公司 | Tyre monitoring system |
| WO2010017674A1 (en) * | 2008-08-12 | 2010-02-18 | 桂林思超汽车科技优先公司 | Reinforced tire pressure monitoring system and its control method |
| CN101734243B (en) * | 2009-12-24 | 2011-10-26 | 浙江亚太机电股份有限公司 | Automobile high-speed tire explosion emergency braking stability control system |
| CN104062966B (en) * | 2013-03-20 | 2016-12-28 | 博世汽车部件(苏州)有限公司 | For the verification method of automatic emergency brake system and verify system accordingly |
| CN106184158A (en) * | 2015-05-07 | 2016-12-07 | 于春雨 | Pneumatic actuator |
| CN108068801A (en) * | 2016-11-14 | 2018-05-25 | 法乐第(北京)网络科技有限公司 | Vehicle flat tire processing method, device, system, detection device and electronic equipment |
| CN108725103A (en) * | 2017-04-19 | 2018-11-02 | 罗伯特·博世有限公司 | Method, apparatus and equipment and machine readable storage medium for control of blowing out |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2174464A (en) * | 1935-03-23 | 1939-09-26 | Frank M Givens | Automatic brake control mechanism |
| CN2050397U (en) * | 1989-07-13 | 1990-01-03 | 张凤祥 | Alarm braking device for automobile deflating tyre, releasing tyre and unhooking of two-wheeler |
| US5900803A (en) * | 1996-05-22 | 1999-05-04 | Robert Bosch Gmbh | Data communication device for a vehicle towed by a motor vehicle |
| US5934768A (en) * | 1996-03-01 | 1999-08-10 | Akebono Industry Co., Ltd. | Brake control apparatus |
| CN2353626Y (en) * | 1999-01-19 | 1999-12-15 | 任业 | Automatic safety device for automobile when tyre burst |
-
2000
- 2000-01-28 CN CNB001015796A patent/CN1142073C/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2174464A (en) * | 1935-03-23 | 1939-09-26 | Frank M Givens | Automatic brake control mechanism |
| CN2050397U (en) * | 1989-07-13 | 1990-01-03 | 张凤祥 | Alarm braking device for automobile deflating tyre, releasing tyre and unhooking of two-wheeler |
| US5934768A (en) * | 1996-03-01 | 1999-08-10 | Akebono Industry Co., Ltd. | Brake control apparatus |
| US5900803A (en) * | 1996-05-22 | 1999-05-04 | Robert Bosch Gmbh | Data communication device for a vehicle towed by a motor vehicle |
| CN2353626Y (en) * | 1999-01-19 | 1999-12-15 | 任业 | Automatic safety device for automobile when tyre burst |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1876409B (en) * | 2005-06-09 | 2011-07-06 | 浙江吉利控股集团有限公司 | Tyre pressure monitoring system functional improvement and enlargement technology |
| WO2009124504A1 (en) * | 2008-04-10 | 2009-10-15 | Fu Jianzhong | A flat tire monitoring method and a flat tire monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1270895A (en) | 2000-10-25 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 101579.6 of the invention patents in this issue as a notice of authorization, and at the same time corresponding to the 268003.3 utility model patent to be given up, and in the 20 volume of the 11 issue of the new type of communique on the patent right to abandon the announcement. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG JILI HOLDING GROUP CO., LTD. Free format text: FORMER OWNER: FU JIANZHONG Effective date: 20080118 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080118 Address after: No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Patentee after: Zhejiang Geely Holding Group Co., Ltd. Address before: No. 219, Zhongshan North Road, Guilin, the Guangxi Zhuang Autonomous Region Patentee before: Fu Jianzhong |
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| CX01 | Expiry of patent term |
Granted publication date: 20040317 |
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| CX01 | Expiry of patent term |