CN201506319U - System for ensuring safe opening of automobile door - Google Patents
System for ensuring safe opening of automobile door Download PDFInfo
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- CN201506319U CN201506319U CN2009201987265U CN200920198726U CN201506319U CN 201506319 U CN201506319 U CN 201506319U CN 2009201987265 U CN2009201987265 U CN 2009201987265U CN 200920198726 U CN200920198726 U CN 200920198726U CN 201506319 U CN201506319 U CN 201506319U
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Abstract
The utility model discloses a system for ensuring safe opening of an automobile door, which is based on an ultrasonic wave distance measurement principle. When an automobile stops, the distance between a rear automobile and the automobile is monitored in real time by adopting an ultrasonic wave; and whether the action of opening the automobile door is dangerous is judged by a microcomputer. When a passenger pulls a handle of the automobile door, the computer gives judgment results; and sound and light alarms are issued to the passenger in case of danger; and the automobile door is normally opened in case of no danger. The utility model has the advantages of low cost and easy realization and can avoid unexpected accidents of scratch and collision of the rear automobile when a driver and the passenger open the automobile door and plan to get off.
Description
Technical field
Whether dangerous the utility model relates to a kind of system that guarantees safe opening of car door, relate in particular to a kind of ultrasonic technology that utilizes and come outer traffic situation of monitoring car and then real-time judge to open car door automobile active safety system.
Background technology
Automobile is as the modern transportation instrument, the life of giving people offer convenience with enjoyment in, also give human life and property and bring great threat and injury because of its traffic accident that causes.Referring to Fig. 1, on the street, by bike or the people of motor bike travel against the roadside, sometimes they can get nearer with the motor-driven traffic allowance that rests in the roadside.The someone wants to get off if rest in this moment in the car in roadside just in time, and car door is open suddenly, and the rider on the road has little time to dodge and will hit together with car door.The reason of accident is very simple: on the one hand, the people in the car is unavoidably sometimes because careless situation about not examining before getting off outside the car; On the other hand, car by bike people does not outward know to have this moment people's door of will driving, not and vehicle keep certain safety distance.If people can keep careful constantly, above-mentioned traffic accident is avoidable fully.But anyone has careless and inadvertent the time unavoidably, in case it is often too late to regret that accident has taken place.
The utility model content
The purpose of this utility model is at the deficiencies in the prior art, and a kind of system that guarantees safe opening of vehicle door is provided.When stationary vehicle, the utility model utilizes the understanding and considerate condition of the automatic monitoring car of super sonic diplomacy, so real-time judge whether push car door open dangerous.
The purpose of this utility model is achieved through the following technical solutions:
A kind of system that guarantees safe opening of vehicle door, it mainly is made up of micro controller system and peripheral circuit, ultrasonic transmit circuit, super sonic acceptor circuit and sound light alarming circuit.Wherein, described ultrasonic transmit circuit, super sonic acceptor circuit and sound light alarming circuit link to each other with micro controller system and peripheral circuit thereof respectively.
Further, described micro controller system and peripheral circuit thereof comprise micro controller system, crystal oscillating circuit and reset circuit, and described crystal oscillating circuit links to each other with micro controller system respectively with reset circuit.Wherein, described crystal oscillating circuit is made up of crystal oscillator Y and two capacitor C 7, C8, an end ground connection of capacitor C 7 and capacitor C 8, and the other end links to each other with two pins of crystal oscillator Y respectively.Reset circuit is made up of switch S 5, chemical capacitor C6, resistance R 8, one termination of the positive pole of chemical capacitor C6 and switch S 5+5V power supply, and the other end of the negative pole of chemical capacitor C6 and switch S 5 passes through resistance R 8 ground connection, and links to each other with micro controller system.
Further, described ultrasonic transmit circuit is mainly by ultrasonic emitting detector SPK1, integrated operational amplifier A1, and resistance R 1, R2 are formed.Wherein, the end of ultrasonic emitting detector SPK1, resistance R 1 and resistance R 2 link to each other with mouth, positive input and the reverse input end of integrated operational amplifier A1 respectively, the other end ground connection of ultrasonic emitting detector SPK1.
Further, described super sonic acceptor circuit is by super sonic pick-up probe SPK2, integrated operational amplifier A2, tone decoder and capacitor C 1～C5 and resistance R 3～R7 form, the end of super sonic pick-up probe SPK2 inserts the reverse input end of integrated operational amplifier A 2 by capacitor C 1 and resistance R 3, the other end ground connection of super sonic pick-up probe SPK2, the reverse input end of integrated operational amplifier A2 links to each other by resistance R 4 with mouth.The positive input of integrated operational amplifier A2 is by resistance R 5 ground connection, and the mouth of integrated operational amplifier A2 is by capacitor C 2 accessing to audio decoders, and capacitor C 3 and capacitor C 4 one ends connect tone decoder respectively, other end ground connection.Resistance R 6 one ending connecting audio decoders, the other end is by capacitor C 5 ground connection.
Further, switch S 1～S4 that described sound light alarming circuit is linked by the handle with the unlatching car door, LED 1～LED4 opens car door caution loud speaker and resistance R 9～R16 and forms.Wherein, resistance R 9 one terminations are gone into micro controller system, and the other end links to each other with the negative pole of opening car door caution loud speaker by switch S 1; Resistance R 10 1 termination micro controller systems, the other end links to each other with the negative electrode of LED 1, and the anode of LED 1 connects+the 5V power supply.Resistance R 11 1 terminations are gone into micro controller system, and the other end links to each other with the negative pole of opening car door caution loud speaker by switch S 2; Resistance R 12 1 termination micro controller systems, the other end links to each other with the negative electrode of LED 2, and the anode of LED 2 connects+the 5V power supply.Resistance R 13 1 terminations are gone into micro controller system, and the other end links to each other with the negative pole of opening car door caution loud speaker by switch S 3; Resistance R 14 1 termination micro controller systems, the other end links to each other with the negative electrode of LED 3, and the anode of LED 3 connects+the 5V power supply.Resistance R 15 1 terminations are gone into micro controller system, and the other end links to each other with the negative pole of opening car door caution loud speaker by switch S 4; Resistance R 16 1 termination micro controller systems, the other end links to each other with the negative electrode of LED 4, and the anode of LED 4 connects+the 5V power supply.
The beneficial effects of the utility model are: the utility model guarantees whether the system of safe opening of vehicle door utilizes ultrasonic technology to come outer traffic situation of monitoring car and then real-time judge to open car door dangerous, the utility model is furnished with two pairs of ultrasonic probes at automobile tail, adopt micro controller system accuracy control hypracoustic to transmit and receive, in real time situation behind the monitoring car.In the moment that the occupant pulls the handle that opens the door,, have no effect if unidentifiedly can normally open to dangerous car door; If system identification has other vehicle ' to come to the back, it is dangerous to open car door, and system will propose caution to driver and passenger.
Description of drawings
Fig. 1 is that automobile stop is opened the scheme drawing that car door may cause the scratching accident when the roadside;
Fig. 2 is that system hardware is arranged scheme drawing;
Fig. 3 is a scheme drawing of system principle;
Fig. 4 is the system hardware functional block diagram;
Fig. 5 is the another scheme drawing of system principle;
Fig. 6 is the system software diagram of circuit;
Fig. 7 is a system circuit diagram.
The specific embodiment
Describe the utility model below with reference to the accompanying drawings in detail, it is more obvious that the purpose of this utility model and effect will become.
As shown in Figure 2, the utility model guarantees that the system of safe opening of vehicle door comprises: electronic control unit 12, ultrasonic probe 8,9, trigger switch 5,7,10,13 is opened car door hazard way light 4,6,11,14 and is opened the dangerous caution of car door loud speaker 15.
Electronic control unit (MCU) the 12nd, the electronic control unit of system, it is the summation device of central process unit, random access memory, read-only memory (ROM), I/O mouth, can select the 89C51 micro controller system of atmel corp for use.
Two ultrasonic probes 8,9 are arranged in the automobile tail left and right sides respectively, and in order to the distance between detection vehicle rear object and the car door, it can adopt the R/T40-16 type ultrasonic detector of " transmitting-receiving integrated ".
Be arranged in each car door place with the trigger switch 5,7,10,13 of the handle interlock of opening the door, with the handle interlock of cooresponding unlatching car door, when the occupant pulled Door Handle, cooresponding on off state changed immediately.
Caution loud speaker 15, when system identification to potential dangerous and when the occupant being arranged just desire being opened car door, the MCU order is warned loud speaker 15 and given the alarm.
The emission of MCU control hypracoustic, MCU reflects the time of being experienced and carries out timing from being transmitted into super sonic simultaneously, and MCU judges the danger of current unlatching car door according to timing result then.
Fig. 3 is the principle schematic of system.Wherein 1 is the automobile stopped, 2 car doors for opening wide, and 3 be other vehicle (bicycle, motor bike or other self-propelled vehicle), and the zone that 16 shade line draw is the width range that car door is covered when unlimited, and 17 is super sonic.Only in 16 (hatched areas) in the width range that other vehicle ' is covered when car door opens wide, the passenger opens car door just the scratching accident might take place.Therefore the shade line zone of drawing is the zone that needs monitoring, if at this area discover other vehicle process is just being arranged, illustrate that drive may be dangerous this moment.One group of ultrasonic probe of each side layout at automobile tail.Two row super sonics are all the time towards fixing angular emission (becoming 20 ° of angles with the automobile longitudinal axis), the i.e. direction that dotted line draws among Fig. 3.
Fig. 4 is the hardware principle block diagram of system, and MCU 12 produces the impulse singla 18 of 40KHZ, amplifies through signal amplification circuit 19, drives ultrasonic transmitter 20 emission super sonics, and the timing unit of MCU12 picks up counting simultaneously; In case run into obstacle 21, super sonic just reflects, ultrasonic receiver 22 receives super sonic and produces faint electric signal, signal amplifies through signal amplification circuit 23, send into audio decoder 24, the signal that audio decoder acknowledges receipt of is 40KHZ, then interrupts to MCU 12 applications immediately, and the timing of MCU stops.The speed of ultrasonic propagation is known, and super sonic records from being transmitted into the time of returning experience, can calculate the distance of obstacle to ultrasonic probe thus.MCU judges to monitoring result whether decision drives caution loud speaker 15 and Warning light 4,6,11,14 when opening car door, the passenger is warned.
Fig. 5 is the another scheme drawing of native system principle.O
1, O
2Be two groups of ultrasonic probes, respectively towards fixing direction emission super sonic.Other vehicle (bicycle, motor bike etc.) during arrow 3 expressions are travelled.With O
1The probe ultrasonic waves transmitted is that example describes, and the intersection point of the width range (zone that shade line draw) that this row super sonic and car door are covered when opening wide is respectively M, N.Return if meet obstacle from ultrasonic emitting to it, the timing result of MCU is t.When the M point had obstacle, the timing result of MCU was t
M, when the N point had obstacle, the timing result of MCU was t
NThen work as t
M≤ t≤t
NThe time, promptly there is object to appear between the MN.If object is still in this place, opening car door so is can be not adventurous, if but object advances, and open car door so and just the scratching accident might take place.The motion and standstill of object also can be judged by the timing result of MCU, if continuous several times detection, timing result remain constant or rangeability is very little, have reason to conclude that detected object is still between the MN, it can not bump against with the car door of opening, and opens car door and does not have danger.
Referring to Fig. 5 a, arrow 3 expression other vehicles (bicycle, motor bike etc.) though it appears within the width range that is covered when car door opens wide, are not also arrived by ultrasonic scanning, illustrate that its distance is far away.If open car door this moment, front vehicle has the enough time to dodge, and this situation is safe, need not caution.
Referring to Fig. 5 b, arrow 3 expression other vehicles (bicycle, motor bike etc.), it reflects super sonic beyond the N point, so within its width range that is not covered when car door opens wide, open car door scratching can not take place fully, need not caution.
Referring to Fig. 5 c, arrow 3 expression other vehicles (bicycle, motor bike etc.), it appears in the width range that is covered when car door opens wide, and it is arrived by ultrasonic scanning, if this moment, the passenger opened car door, the back car is nearer apart from the front truck car door so, and back car may have little time to dodge, and very easily has an accident.Therefore this situation passenger's desire is opened car door moment, and MCU will drive loud speaker and dangerous indicator lamp and warn the passenger to open car door dangerous.
Referring to Fig. 5 c, arrow 3 expression other vehicles (bicycle, motor bike etc.), from it through MN, up to its away from the car door of front truck during this period of time in, it all is dangerous opening car door, the dangerous state that therefore opens the door need keep a period of time.MN is set to 6～7 meters (angle of being installed by ultrasonic probe determines) to the distance of car door, and the speed of normal adult walking is about 2m/s, finishes the time of these segment distance needs about 3 seconds with the speed of walking.So in a single day system has detected object from process between the MN, the state of alert in 3 seconds will be kept.In this 3 second, open car door and all can dangerously warn, because object may be also away from car door; The state of alert is cancelled automatically after 3 seconds, open car door and need not caution because or object away from car door, or movement of objects speed very slow (less than 2m/s), both of these case all represents to open car door can be not dangerous.
Fig. 6 is the software flow pattern of system.When automobile remain static and car in when the passenger is arranged, system starts working, system according to from ultrasonic emitting to reflecting required time judgment object and the distance the arrangements for automotive doors, determine according to this distance whether current unlatching car door dangerous.If system thinks that opening car door does not have danger, then program is returned beginning, launches super sonic again, and whether clamshell doors is dangerous monitors in real time.If system identification has potential danger to opening car door, system 3 seconds regularly then.Open car door within this 3 second, system will drive Warning light 4,6,11,14 and 15 couples of passengers of caution loud speaker make prompting.If 3 seconds are mistake, simultaneity factor does not recognize the potential danger that new driving door may have yet, and system just thinks that it is safe opening car door this moment, can be to the caution of passenger's proposition sound, light.
Fig. 7 is the circuit diagram of system.The circuit of total system mainly is made up of micro controller system and peripheral circuit, ultrasonic transmit circuit and super sonic acceptor circuit and sound light alarming circuit four parts, and ultrasonic transmit circuit links to each other with micro controller system and peripheral circuit thereof respectively with super sonic acceptor circuit and sound light alarming circuit.
Micro controller system and peripheral circuit thereof comprise micro controller system, crystal oscillating circuit and reset circuit, crystal oscillating circuit links to each other with micro controller system respectively with reset circuit: micro controller system can be selected the 89C51 micro controller system of atmel corp for use, this micro controller system has 40 pins, wherein No. 40 pins connect the positive pole of 5V power supply, No. 20 pin power connection negative poles.Crystal oscillating circuit is made up of crystal oscillator Y and two capacitor C 7, C8, an end ground connection of capacitor C 7 and capacitor C 8, and the other end links to each other with two pins of crystal oscillator Y respectively.The frequency of crystal oscillator Y is 24MHZ, and two pins of crystal oscillator Y link to each other with No. 18 pins with No. 19 of micro controller system 89C51 respectively, and C7 and C8 are the ceramic disc capacitor of 30pF.Reset circuit is made of switch S 5, chemical capacitor C6, resistance R 8, one termination of the positive pole of chemical capacitor C6 and switch S 5+5V power supply, and the other end of the negative pole of chemical capacitor C6 and switch S 5 is by resistance R 8 ground connection, and No. 9 pins of access micro controller system 89C51.
Ultrasonic transmit circuit: this circuit is mainly by ultrasonic emitting detector SPK1, integrated operational amplifier A1, and resistance R 1, R2 are formed, the end of ultrasonic emitting detector SPK1, resistance R 1 and resistance R 2 link to each other with mouth, positive input and the reverse input end of integrated operational amplifier A1 respectively, the other end ground connection of ultrasonic emitting detector SPK1.Wherein the model of ultrasonic detector can be T40-16, and the integrated operational amplifier model can be OP37G, and R1, R2 resistance are 10K Ω.This circuit links to each other with the P1.0 pin of 89C51.The frequency of the P1.0 pin of 89C51 output 0～5V is the alternating signal of 40KHZ during system works, and this signal carries out power gain through amplifier A1, drives the super sonic that the ultrasonic emitting detector sends 40KHZ.
The super sonic acceptor circuit: this circuit is by super sonic pick-up probe SPK2, integrated operational amplifier A2, tone decoder LM567 and capacitor C 1～C5 and resistance R 3～R7 form, the end of super sonic pick-up probe SPK2 inserts the reverse input end of integrated operational amplifier A 2 by capacitor C 1 and resistance R 3, the other end ground connection of super sonic pick-up probe SPK2, the positive input of integrated operational amplifier A2 is by resistance R 5 ground connection, the mouth of integrated operational amplifier A2 is by No. 3 pins of capacitor C 2 accessing to audio decoder LM567, the reverse input end of integrated operational amplifier A2 links to each other by resistance R 4 with mouth, No. 1 pin of tone decoder LM567 is by capacitor C 3 ground connection, No. 2 pins are by capacitor C 4 ground connection, No. 7 pin ground connection, No. 4 pin access+5V power supplys, and link to each other with No. 8 pins by resistance R 7, No. 5 pins are by resistance R 6 and capacitor C 5 ground connection, and No. 6 pins are by capacitor C 5 ground connection, and No. 8 pin links to each other with No. 13 pins of micro controller system.Wherein the model of super sonic pick-up probe is R40-16, the integrated operational amplifier model is OP37G, the model of tone decoder is LM567CM, the resistance of resistance R 3, R5 is 10K Ω, resistance R 4 is 100K Ω, resistance R 6, R7 are 2.2K Ω, and capacitor C 1～C4 is 0.1 μ F, and capacitor C 5 is 0.01 μ F.The super sonic pick-up probe detects the sound wave that fires back will produce faint alternating voltage signal, this signal is after capacitor C 1 filtering DC component, A2 amplifies it by integrated operational amplifier, signal after the amplification links to each other with No. 3 pins of tone decoder LM567 again by capacitor C 2 filtering DC components at last.If the frequency of this signal is 40KHZ (illustrating that this is the super sonic of the 40KHZ that reflects), No. 8 pins of tone decoder (linking to each other with No. 13 pins of 89C51) will be by low transition to high level.High level signal is used for interrupting to the 89C51 application.
Sound light alarming circuit: switch S 1～S4 that this circuit is linked by the handle with the unlatching car door, LED 1～LED4 opens car door caution loud speaker LS1 and resistance R 9～R16 and forms.Wherein the resistance of R9～R16 is 10K Ω.The P2.0 pin of 89C51 links to each other with the loud speaker negative pole through resistance R 9, switch S 1; The P2.1 pin links to each other with positive source through resistance R 10, LED 1; The P2.2 pin links to each other with the loud speaker negative pole through resistance R 11, switch S 2; The P2.3 pin links to each other with positive source with LED2 through resistance R 12, light emitting diode; The P2.4 pin links to each other with the loud speaker negative pole through resistance R 13, switch S 3; The P2.5 pin links to each other with positive source through resistance R 14, LED 3; The P2.6 pin links to each other with the loud speaker negative pole through resistance R 15, switch S 4; The P2.7 pin links to each other with positive source with LED4 through resistance R 16, light emitting diode.
The above-mentioned specific embodiment is used for the utility model of explaining; rather than the utility model limited; in the protection domain of spirit of the present utility model and claim, any modification and change to the utility model is made all fall into protection domain of the present utility model.
Claims (5)
1. a system that guarantees safe opening of vehicle door is characterized in that, it mainly is made up of micro controller system and peripheral circuit, ultrasonic transmit circuit, super sonic acceptor circuit and sound light alarming circuit; Wherein, described ultrasonic transmit circuit, super sonic acceptor circuit and sound light alarming circuit link to each other with micro controller system and peripheral circuit thereof respectively.
2. according to the described system that guarantees safe opening of vehicle door of claim 1, it is characterized in that described micro controller system and peripheral circuit thereof comprise micro controller system, crystal oscillating circuit and reset circuit, described crystal oscillating circuit links to each other with micro controller system respectively with reset circuit; Wherein, described crystal oscillating circuit is made up of crystal oscillator Y and two capacitor C 7, C8, an end ground connection of capacitor C 7 and capacitor C 8, and the other end links to each other with two pins of crystal oscillator Y respectively; Reset circuit is made up of switch S 5, chemical capacitor C6, resistance R 8, one termination of the positive pole of chemical capacitor C6 and switch S 5+5V power supply, and the other end of the negative pole of chemical capacitor C6 and switch S 5 passes through resistance R 8 ground connection, and links to each other with micro controller system.
3. according to the described system that guarantees safe opening of vehicle door of claim 2, it is characterized in that described ultrasonic transmit circuit is mainly by ultrasonic emitting detector SPK1, integrated operational amplifier A1, and resistance R 1, R2 are formed; Wherein, the end of ultrasonic emitting detector SPK1, resistance R 1 and resistance R 2 link to each other with mouth, positive input and the reverse input end of integrated operational amplifier A1 respectively, the other end ground connection of ultrasonic emitting detector SPK1.
4. according to the described system that guarantees safe opening of vehicle door of claim 2, it is characterized in that, described super sonic acceptor circuit is by super sonic pick-up probe SPK2, integrated operational amplifier A2, tone decoder and capacitor C 1～C5 and resistance R 3～R7 form, the end of super sonic pick-up probe SPK2 inserts the reverse input end of integrated operational amplifier A 2 by capacitor C 1 and resistance R 3, the other end ground connection of super sonic pick-up probe SPK2, the reverse input end of integrated operational amplifier A2 links to each other by resistance R 4 with mouth; The positive input of integrated operational amplifier A2 is by resistance R 5 ground connection, and the mouth of integrated operational amplifier A2 is by capacitor C 2 accessing to audio decoders, and capacitor C 3 and capacitor C 4 one ends connect tone decoder respectively, other end ground connection; Resistance R 6 one ending connecting audio decoders, the other end is by capacitor C 5 ground connection.
5. according to the described system that guarantees safe opening of vehicle door of claim 2, it is characterized in that, switch S 1～S4 that described sound light alarming circuit is linked by the handle with the unlatching car door, LED 1～LED4 opens car door caution loud speaker and resistance R 9～R16 and forms; Wherein, resistance R 9 one terminations are gone into micro controller system, and the other end links to each other with the negative pole of opening car door caution loud speaker by switch S 1; Resistance R 10 1 termination micro controller systems, the other end links to each other with the negative electrode of LED 1, and the anode of LED 1 connects+the 5V power supply; Resistance R 11 1 terminations are gone into micro controller system, and the other end links to each other with the negative pole of opening car door caution loud speaker by switch S 2; Resistance R 12 1 termination micro controller systems, the other end links to each other with the negative electrode of LED 2, and the anode of LED 2 connects+the 5V power supply; Resistance R 13 1 terminations are gone into micro controller system, and the other end links to each other with the negative pole of opening car door caution loud speaker by switch S 3; Resistance R 14 1 termination micro controller systems, the other end links to each other with the negative electrode of LED 3, and the anode of LED 3 connects+the 5V power supply; Resistance R 15 1 terminations are gone into micro controller system, and the other end links to each other with the negative pole of opening car door caution loud speaker by switch S 4; Resistance R 16 1 termination micro controller systems, the other end links to each other with the negative electrode of LED 4, and the anode of LED 4 connects+the 5V power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201987265U CN201506319U (en) | 2009-10-22 | 2009-10-22 | System for ensuring safe opening of automobile door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201987265U CN201506319U (en) | 2009-10-22 | 2009-10-22 | System for ensuring safe opening of automobile door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201506319U true CN201506319U (en) | 2010-06-16 |
Family
ID=42467450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201987265U Expired - Lifetime CN201506319U (en) | 2009-10-22 | 2009-10-22 | System for ensuring safe opening of automobile door |
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|---|---|
| CN (1) | CN201506319U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101695910B (en) * | 2009-10-22 | 2011-09-14 | 浙江大学 | System for guaranteeing safe opening of vehicle door |
| CN104097601A (en) * | 2013-04-08 | 2014-10-15 | 同济大学 | Automobile anti-collision door self-locking device |
| CN104442664A (en) * | 2014-11-04 | 2015-03-25 | 李志飞 | Vehicle door opening safety pre-warning assisting system and control method thereof |
| CN108583241A (en) * | 2018-04-23 | 2018-09-28 | 重庆长安汽车股份有限公司 | Ensure the device and method of safe opening of vehicle door |
| CN112373429A (en) * | 2020-11-10 | 2021-02-19 | 北京现代汽车有限公司 | Vehicle door state monitoring system and method and vehicle |
-
2009
- 2009-10-22 CN CN2009201987265U patent/CN201506319U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101695910B (en) * | 2009-10-22 | 2011-09-14 | 浙江大学 | System for guaranteeing safe opening of vehicle door |
| CN104097601A (en) * | 2013-04-08 | 2014-10-15 | 同济大学 | Automobile anti-collision door self-locking device |
| CN104442664A (en) * | 2014-11-04 | 2015-03-25 | 李志飞 | Vehicle door opening safety pre-warning assisting system and control method thereof |
| CN108583241A (en) * | 2018-04-23 | 2018-09-28 | 重庆长安汽车股份有限公司 | Ensure the device and method of safe opening of vehicle door |
| CN112373429A (en) * | 2020-11-10 | 2021-02-19 | 北京现代汽车有限公司 | Vehicle door state monitoring system and method and vehicle |
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100616 Effective date of abandoning: 20091022 |