CN2183940Y - Automatic protector for automobile colliding - Google Patents
Automatic protector for automobile colliding Download PDFInfo
- Publication number
- CN2183940Y CN2183940Y CN 93246207 CN93246207U CN2183940Y CN 2183940 Y CN2183940 Y CN 2183940Y CN 93246207 CN93246207 CN 93246207 CN 93246207 U CN93246207 U CN 93246207U CN 2183940 Y CN2183940 Y CN 2183940Y
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- infrared
- automobile
- speed
- control box
- circuit control
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Abstract
The utility model relates to an automatic bumper for automobiles, which is used for the safety protection of the automobiles. A speed measuring machine set connected with an automobile speed changer is used for producing different magnitude of voltage according to a driving speed; an acoustooptical alarm display panel controlled and arranged in an automobile cab by passing through a circuit control box is used for driving display alarm when an obstacle is detected; infrared transmitting tubes of two infrared detector arranged at the front end of an automobile are simultaneously controlled to transmit infrared light with different effective ranges, and infrared receiving tubes working synchronously with the infrared transmitting tubes receives reflected signals of the obstacle at a position in the effective ranges; an actuating mechanism connected with an automotive brake system is driven to take a brake measure. The distance measurement of the utility model is based on the effective ranges of the transmitting tubes to reduce distortion rate and cost.
Description
The utility model relates to a kind of safety guard for automobile, particularly relates to a kind of anti-collision device for automobile.
In the prior art, a kind of automobile automatic collision device close with the utility model mainly is made up of mission controller, signal projector, signal receiver, deceleration annunciator, emergency brake operating part.The mission controller control signal transmitter is sent a kind of laser beam of modulation, signal receiver receives the modulated laser signal that is reflected by objects in front in certain distance, instruction deceleration warning emergency brake actuating unit is reported to the police and made car deceleration or brake.Mr.'s Wang Tianhou utility model " infrared laser full automatic car anticollision device " for example, Chinese patent, the authorization notification number: 2083552, the authorization day for announcing: 91.08.28.This device is owing to adopt infrared laser device, its mission controller, signal projector, signal receiver complex circuit designs, and cost is higher.Another kind of photo-electric anticollision device, adopt infrared ray as detection light source, and being provided with lever regulated mechanism that angle between two infrared emission lamp bodies changes with the speed of a motor vehicle and lamp body with the synchronous rotating mechanism of vehicle body, detecting light beam is followed the tracks of the ground-surface problem all the time when reaching car body synchronously and change to solve brake and vehicle scanning frequency.People's such as Mr. Quan Jinchang utility model " automobile infrared electro anticollision device " for example, Chinese patent, authorization notification number: 2128220.The mode of inspected object distance has increased machine cost and complexity is installed though this device circuit design is more preceding a kind of simple, and it changes with the speed of a motor vehicle, and certain distortion is arranged.
The purpose of this utility model is to overcome the shortcoming of said apparatus, provides a kind of light harvesting, electricity, machinery in the automatic ranging and the braking beam of one.
The purpose of this utility model is achieved in that and adopts the unit that tests the speed that links with Automotive transmission, detect the different speed of a motor vehicle, produce different magnitudes of voltage, behind the comparator circuit of circuit control box, one tunnel Control of Automobile battery+12V voltage adds to the sound and light alarm display panel that is placed in automobile cab, drives display alarm when being used to detect obstacle; Another road Control of Automobile battery+12V is after different step-downs, add the Infrared of launching different effective ranges (being detection range) as for the infrared emission tube of two infrared detectors of automotive front end by different voltage and certain pulse, and receive the Infrared of this effective range place obstacle reflected back by the infrared receiving tube of synchronousing working with infrared transmitting tube, after opto-electronic conversion is judged, drive the actuating unit that is connected with brake system of car, take corresponding brake measure.For the flexible safety turning of automobile energy, at two Steering Knuckle Arm places a limiting steering switch is set respectively, when automobile turning reaches 15 °, automatically cut off the working power of the unit that tests the speed by circuit control box, make the driving voltage of infrared detector power valve, changing by the automobile battery provides behind maximum reducing, makes detection range be retracted to 2～3 meters.When automobile has just started the speed of a motor vehicle when being lower than 20km/h, the voltage that the test unit produces be lower than the automobile battery offer circuit control box comparator circuit+the 12V reference voltage, also adopt the automobile battery that driving voltage is provided behind maximum reducing automatically, making detection range is 2～3 meters.For making reversing automobile also have crashproof function, after the reversing automobile retaining hangs up,, also behind maximum reducing, provide driving voltage by the automobile battery even the infrared detector of automobile tail is started working, detection range is apart from about 2 meters of back vehicle body.
Technique scheme compared with prior art, detection range is that the effective range with infrared detector power valve Infrared is a foundation, needs carry out too much processing to the Infrared of reflected back, so can reduce find range distortion rate and cost.
Fig. 1 is an automobile automatic bumper overall structure scheme drawing;
Fig. 2 is a kind of scheme drawing that connects of unit and Automotive transmission of testing the speed;
Fig. 3 is the circuit control box electrical schematic diagram;
Fig. 4 is the comparator circuit schematic diagram of circuit control box;
Fig. 5 is the infrared detector logic diagram;
Fig. 6 is the driving amplification circuit diagram of infrared detector;
Fig. 7 is pulse formation, the frequency detection circuit figure of infrared detector;
Fig. 8 is the actuating unit structure and connects scheme drawing with brake system of car;
Fig. 9 is a sound and light alarm display panel electrical schematic diagram.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is an automobile automatic bumper overall structure scheme drawing.The utility model has designed 5 controls of a circuit control box and has been connected each several part work.The each several part operating voltage that distributes by circuit control box 5 all based on automobile battery 11+12V.The unit 6 that tests the speed that links with Automotive transmission 7, by detection to the different speed of a motor vehicle, produce different magnitudes of voltage and deliver to circuit control box 5, after the comparator circuit of circuit control box 5 compares control relay, one tunnel general+12V voltage is delivered to the sound and light alarm display panel 4 of automobile cab, drives display alarm when being used to detect obstacle; Two infrared detectors 1 and 15 that the different magnitude of voltage relevant with the speed of a motor vehicle delivered to automotive front end are reduced to+12V in another road, be used to drive the infrared emission tube of infrared detector 1 and 15 ' by the Infrared of certain pulse emission with speed of a motor vehicle variation effective range (being detection range), and receive the Infrared that this effective range place obstacle reflects by the infrared receiving tube of synchronousing working with infrared transmitting tube, its photoelectric conversion signal is after frequency detecting, be recycled to circuit control box 5, be used to drive the actuating unit 9 that links with brake system of car 12, take to brake crashproof measure.When obstacle is removed and during no reflection signal loopback circuit control box 5, circuit control box 5 is that control executing mechanism 9 automatically terminates brake measure.For preventing that hindering automobile turns flexibly, respectively establish a limiting steering switch 2 and 14 in two Steering Knuckle Arm 3 and 13 places, connect with series system by circuit control box, when automobile turning reaches 15 °, limiting steering switch 2 or 14 will cut off the working power of test unit 6 automatically, the driving voltage that offers infrared detector 1 and 15 power valves by circuit control box 5 is+magnitude of voltage of 12V behind maximum reducing to make detection range be retracted to 2～3 meters.When the speed of a motor vehicle was lower than 20km/h, the comparative voltage that provides of test unit 6 was lower than the reference voltage+12V of the comparator circuit of circuit control box 5, also provided the infrared emission driving voltage by+12V behind maximum reducing, and making detection range is 2～3 meters.For making reversing automobile also have crashproof function, after the reversing automobile retaining hangs up, promptly connect the infrared detector 8 of automobile tail and start working, also behind maximum reducing, provide the infrared emission driving voltage by+12V, detection range is apart from about 2 meters of back vehicle body.In addition, take the reliability of brake measure, established a travel switch 10 at the actuating unit 9 and the joining place of brake system of car 12 in order to guarantee actuating unit 9, be used to guarantee obstacle remove before automobile be in braking mode all the time.
Fig. 2 is a kind of scheme drawing that connects of unit and Automotive transmission of testing the speed.The multiple mode that is connected with of the utility model set test the speed unit 6 and Automotive transmission 7, Fig. 2 is a kind of driving band connecting mode, the flexible axle of Automotive transmission 7 is made up of flexible axle shell 16 and flexible axle core 17, the minor radius belt wheel 19 of unit 6 of testing the speed links by the driving band 18 long radius belt wheel 20 with flexible axle core 17, and its radius proportioning is decided on concrete vehicle.Automobile under steam, the belt wheel of slow rotation 20 drives belt wheels 19 and twirl by driving band 18, makes test unit 6 produce certain voltage according to the output voltage gradient (as 2.5V/1000 rev/min) of self, delivers to circuit control box 5 and compares.
Fig. 3 and Fig. 4 are respectively circuit control box electrical schematic diagram and its comparator circuit schematic diagram.The CZ-E port that the magnitude of voltage that is produced by above-mentioned test unit 6 is delivered to circuit control box 3. after, at first enter the c end of Fig. 4 comparator circuit, enter the IC(op amp LM324 of voltage comparator through a stabilivolt VDw) 4 input pins 3,5,10,12 compare, 4 output pins 1 by IC, 7,8,14 output signals are respectively by R6 and Q1 ', R7 and Q2 ', R8 and Q3 ', after R9 and Q4 ' drive, by mouth J4, J3, J2, the output of J1 low level, respectively corresponding 4 dry reed relay J40, J30, J20, J10, when certain mouth is low level, promptly drive and the cooresponding dry reed relay adhesive of this end, + 12V voltage one road is delivered to the corresponding end of CZ-D1, be used to drive the corresponding position display alarm of sound and light alarm display panel 4; Another road is connected to cooresponding G4, G3, G2, G1 end, after VD3 and VD4, VD5 and VD6, VD7 and VD8 step-down, again by the output of G4 end, the output voltage of mouth G4 is connected to the 4. end of CZ-A and CZ-B, and the infrared transmitting tube that is used to drive infrared detector 1 and 15 is launched the Infrared of certain effective range. Infrared detector 1,15 or 8 reflected signals that receive, 3. end by CZ-A, CZ-B or CZ-C drives starting relay J5 adhesive, + 12V voltage is delivered to 2. and the 3. end of CZ-F, be used to drive the vehicle-mounted starting motor 30 and 31 work of starter electromagnet of actuating unit 9, this moment limiting steering switch 2 and 14 and travel switch 10 closed all the time, make 1. and 2. communicating of 1. and 2. the communicating of CZ-H, CZ-G.When travel switch 10 is cut off, make 1. and 2. disconnecting of CZ-G, among the cancellation CZ-F 3.+12V voltage, and then close vehicle-mounted starting motor 30; When obstacle is removed, the 3. end no reflection signal of CZ-A, CZ-B and CZ-C disconnects starting relay J5, among the cancellation CZ-F 2.+12V voltage, cut off the power supply of starter electromagnet 31.When being cut off to limit switch 2 or 14,1. and 2. CZ-H disconnects, promptly cut off the working power that offers test unit 6 by the 2. end of CZ-E, making the 3. end of CZ-E not have the speed of a motor vehicle detects voltage and enters, place Ak end because of automobile advances detector switch Dk to overtake around the time this moment, by automobile battery 11 provide+12V voltage is connected to the G0 end of comparator circuit, after VD1 and VD2, VD3 and VD4, VD5 and VD6, VD7 and VD8 step-down, export, as the driving voltage of infrared detector 1 and 15 power valves by the G4 end.When the speed of a motor vehicle was lower than 20km/h, the detection voltage that the unit 6 that tests the speed provides was lower than that automobile battery 11 provides+12V voltage, make+12V voltage is after G0 to G4 step-down, as the driving voltage of infrared detector 1 and 15 power valves.After the reversing automobile retaining hangs up, front and back are advanced detector switch Dk and are placed the Bk end, close infrared detector 1 and 15 power valves, enable infrared detector 8 work, also general+12V voltage provides the driving voltage of infrared detector 8 power valves by the 4. end of CZ-C after G0 to G4 step-down.
Fig. 5 is the infrared detector logic diagram, and Fig. 6, Fig. 7 are respectively that it drives amplification circuit diagram and pulse formation, frequency detection circuit figure.Among Fig. 6, the voltage after+12V step-down that is entered by IN end adds to the LED+ end of infrared transmitting tube.The dutycycle that is entered by the A end is the square-wave pulse signal of 1:4, behind Q1 promotion, Q2 paraphase, Q3 power gain (Q1, Q2, Q3 all are on off state), add to the LED-end of infrared transmitting tube, making the electric current that flows through infrared transmitting tube (adopting HG527 type high-power tube) is the interrupt current of dutycycle 1:4, promptly launches the pulsed infrared light of 1:4.When the clear reflected signal, hold the high level that is that enters by B, make the Q4 conducting, Q5, Q6 end, and OUT holds no-output and is in open-circuit condition.When reflected signal, enter the low level that is of B end, Q4 is ended, Q5, Q6 conducting, OUT end output one low level, with the starting relay J5 adhesive in the control circuit control capsule 5, and driving photoelectric alarm display panel 4 is reported to the police.Among Fig. 7, the dutycycle that is produced the about 10kHz of frequency by 555 time base circuits is the pulse square wave of 1:4, by the output of A end.When reflected signal, receive by the infrared receiving tube PIN identical with the power valve frequency of operation, 2 pin that are coupled to op amp LM741 through R4 ' and C4 ' amplify, and by the 6 pin output of LM741, pass through C6 ' and are coupled to LM567.When the 3 pin frequency input signals of LM567 were identical with himself frequency, 8 pin of LM567 were low level, and deliver to the B end.LM567 is a frequency decoding special IC, and certain synchronous band is arranged.Phase-locked central frequency is decided by 5 and 6 pin of LM567 external R9 ' and C9 ', when LM567 works, 5 pin of LM567 have a standard rectangular pulse, the frequency of this pulse is exactly the phase-locked central frequency of LM567, utilize this pulse to cause 2 pin of 555 time base circuits, so just realized the syn of decoding frequency and infrared emission frequency through C1 '.
Fig. 8 is the actuating unit structure and connects scheme drawing with brake system of car.The braking of automobile service brake is to make brake system of car 12 finish braking work by lever connection 21.The utility model has designed one and has realized the purpose of autobrake with the actuating unit 9 that brake system 12 is connected mutually.From the CZ-F of circuit control box 5 2. and 3. transmit+12V is added on starter electromagnet 31 and vehicle-mounted starting motor 30 simultaneously, adhesive by electromagnet 31, starter gear on the starter shaft 28 29 is pushed into and ring gear 27 interlocks of being fixed in casing through passive tooth wheel shaft 26, starter gear 29 drives ring gear 27 and rotates, and then the drive link 24 that drive is fixed on the ring gear 27 by drive link fix shaft 25 moves reciprocatingly, and push rod 22 crank motions that are connected with drive link 24 of drive, the motion that guarantees push rods 22 by location pulley 23 linearly, when push rod 22 moves to retarder location, the stroke pin 32 that is positioned on the push rod 22 backs down travel switch 10, cut off the power supply of vehicle-mounted starting motor 30, make its stall, push rod 22 remains in retarder location, still adhesive maintenance starter gear 29 and ring gear 27 interlocks of electromagnet 31 this moment.Remove when hindering the thing thing, the power supply of circuit control box 5 automatic tripping magnets 31 disconnects electromagnet 31 starter gear 29 is separated with ring gear 27, and ring gear 27 is at the antagonistic force turning down of brake system of car 12, i.e. brake off.
Fig. 9 is a sound and light alarm display panel electrical schematic diagram.Main supply switch K of the present utility model is housed on sound and light alarm display panel 4, and when main supply switch K was closed, electro-optical tubes LED1 was luminous, illustrated that each several part promptly starts working.LED2 is used to indicate the speed of a motor vehicle to be lower than the detection range of 20km/h, turning, reversing; From dry reed relay J40, the J30 of the adhesive of circuit control box 5, J20, J10+12V voltage, through CZ-D1 6. 5. 4. 3. end drive luminotron LED3～LED6, to indicate the detection range of corresponding different vehicle speed ranges.When the obstacle reflected signal entered the 3. end of CZ-D2, the corresponding position of LED2～LED6 was promptly luminous, and buzzer JY is promptly with audible alarm simultaneously.
Claims (2)
1, a kind of automobile automatic bumper, mainly by the unit that tests the speed, circuit control box, infrared detector, the sound and light alarm display panel, brake actuator and limiting steering switch are formed, and it is characterized in that: circuit control box [5] control is connected each component part work; The unit that tests the speed [6] that links with Automotive transmission [7], detect the different speed of a motor vehicle and produce certain voltage value, drive the Infrared of the certain effective range of infrared detector [1] and [15] emission by circuit control box [5], and receive reflected signal by infrared detector [1] and [15], drive through circuit control box [5] that sound and light alarm display panel [4] is reported to the police and the actuating unit [9] that is connected with brake system of car [12] is taked to brake; Unit [6] work of testing the speed is turn-offed in limiting steering switch [2] and [14] when being used for automobile turning.
2, automobile automatic bumper according to claim 1 is characterized in that: actuating unit ［ 9 ］ is provided with a travel switch ［ 10 ］ with brake system of car ［ 12 ］ place of connecing, street, is used for obstacle and removes the preceding braking that keeps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93246207 CN2183940Y (en) | 1993-12-01 | 1993-12-01 | Automatic protector for automobile colliding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93246207 CN2183940Y (en) | 1993-12-01 | 1993-12-01 | Automatic protector for automobile colliding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2183940Y true CN2183940Y (en) | 1994-11-30 |
Family
ID=33818965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93246207 Expired - Fee Related CN2183940Y (en) | 1993-12-01 | 1993-12-01 | Automatic protector for automobile colliding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2183940Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205825A (en) * | 2011-04-02 | 2011-10-05 | 湖南亮财汽车安全科技有限公司 | Photoelectric transmitting and receiving head and photoelectric transmitting and receiving device of automobile anti-collision safety system |
| CN102107626B (en) * | 2009-12-29 | 2013-01-02 | 上海纳杰电气成套有限公司 | Automatic motor vehicle anti-collision system and implementation method thereof |
| CN103847713A (en) * | 2012-12-08 | 2014-06-11 | 杨家坤 | Vehicle rear-end collision preventing device |
-
1993
- 1993-12-01 CN CN 93246207 patent/CN2183940Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107626B (en) * | 2009-12-29 | 2013-01-02 | 上海纳杰电气成套有限公司 | Automatic motor vehicle anti-collision system and implementation method thereof |
| CN102205825A (en) * | 2011-04-02 | 2011-10-05 | 湖南亮财汽车安全科技有限公司 | Photoelectric transmitting and receiving head and photoelectric transmitting and receiving device of automobile anti-collision safety system |
| CN102205825B (en) * | 2011-04-02 | 2013-02-13 | 湖南亮财汽车安全科技有限公司 | Photoelectric transmitting and receiving head and photoelectric transmitting and receiving device of automobile anti-collision safety system |
| CN103847713A (en) * | 2012-12-08 | 2014-06-11 | 杨家坤 | Vehicle rear-end collision preventing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |