CN105781275A - Vehicle safety door opening protection system and control method thereof - Google Patents
Vehicle safety door opening protection system and control method thereof Download PDFInfo
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- CN105781275A CN105781275A CN201610181573.8A CN201610181573A CN105781275A CN 105781275 A CN105781275 A CN 105781275A CN 201610181573 A CN201610181573 A CN 201610181573A CN 105781275 A CN105781275 A CN 105781275A
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- locking mechanism
- vehicle
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- car door
- self
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B77/00—Vehicle locks characterised by special functions or purposes
- E05B77/02—Vehicle locks characterised by special functions or purposes for accident situations
- E05B77/04—Preventing unwanted lock actuation, e.g. unlatching, at the moment of collision
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B45/00—Alarm locks
- E05B45/06—Electric alarm locks
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B77/00—Vehicle locks characterised by special functions or purposes
- E05B77/02—Vehicle locks characterised by special functions or purposes for accident situations
- E05B77/12—Automatic locking or unlocking at the moment of collision
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/54—Electrical circuits
- E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B45/00—Alarm locks
- E05B45/06—Electric alarm locks
- E05B2045/065—Switch or sensor type used in alarm locks
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- Lock And Its Accessories (AREA)
Abstract
The invention discloses a vehicle safety door opening protection system. The system is provided with a control unit. The control unit acquires vehicle door lock state information, vehicle door opening and closing information, vehicle speed information, vehicle longitudinal deceleration information, transverse acceleration information and rear obstacle information collected by radar modules from a whole vehicle through CAN buses. The control unit outputs a control signal to vehicle door self-locking mechanisms. The control unit is in communication with an instrument control unit through a CAN bus to control a buzzer arranged in the instrument control unit to be started and stopped. According to the vehicle safety door opening protection system, randomness and nondeterminacy of drivers and passengers for understanding visual and audible alarming are overcome, the effectiveness of the system is improved, and the defects existing in an existing alarming manner are overcome; and in addition, the interference of visual and audible alarming reminding manners with the drivers and the passengers is reduced.
Description
Technical field
The present invention relates to automobile active safety technical field, be specifically related to a kind of opening door of vehicle CAS and control method.
Background technology
Along with user's improving constantly vehicle demand, the effect that automobile active safety technology highlights in preventing accident increasingly is paid attention to by people.According to statistics in car accident, forget for the moment later observation rear vehicle condition due to driver and crew, open the door suddenly and cause that the vehicle accident caused that collides of rear approaching vehicle and the car door opened accounts for 6%.Opening door of vehicle early warning system is precisely in order to avoid the active safety technologies that such accident occurs.The vehicle of current assembling enabling early warning system is fewer, and the high-end vehicle of only import small part has this to configure, and carries out dangerous prompting by the light-strip installed in door handle position.
At present, also there is disclosed patent documentation to disclose the enabling early warning system based on Doppler radar, by installing warning lamp in car inside door handle position, driver and crew are carried out visual alerts, by buzzer, driver and crew are carried out sound sensation prompting.
Driver and crew are mainly carried out dangerous prompting by above vision and sound sensation alerting pattern, but whether this alerting pattern can be real is accurately delivered to driver and crew by information, depends entirely on driver and crew, and audio alert is reminded and be there is time delay.If after driver and crew receive alarm signal, it is to be understood that the meaning that alarm signal is transmitted or receive the stimulation of alarm signal, stop the action opening the door, then system alarm is effective.If driver and crew are after receiving alarm signal, wonder why warning, continue to open the door, then system alarm is invalid, now system cannot the generation of collision free accident, especially to the driver and crew such as old people or child, such situation is particularly acute.Such type of alarm is passing on information to be there is certain randomness to driver and crew, it is impossible to ensure safe enough.If able to when system detects that enabling exists risk, by a kind of device, it is possible to stop driver and crew to open the door, then can avoid the generation of such accident.
Summary of the invention
The technical problem to be solved is to realize a kind of more safe and reliable and can be prevented effectively from the system sending out collision accident because of door opening.
To achieve these goals; the technical solution used in the present invention is: a kind of vehicle safety door open protection system; system is provided with control unit; described control unit obtains, from car load, the rear obstacle information that automobile door lock status information, door contact interrupter information, speed information, longitudinal direction of car deceleration information, lateral acceleration information and radar module gather by CAN; described control unit outputs control signals to car door self-locking mechanism, and described control unit communicates through CAN and Meter Control Unit and controls its built-in buzzer keying.
System is provided with system switching, and described system switching output system switching signal is to control unit.
Described radar module is the Continuous Wave with frequency modulation millimetre-wave radar of detection left and right vehicle wheel rear and dead astern alarm region dynamic object, and the relative distance of useful target, position and the relative velocity that detection obtains is sent to control unit by independent CAN by described radar module.
Described car door self-locking mechanism is allowed or static unlatching by self-locking mechanism and built-in high-speed double electromagnet car door thereof, and described car door self-locking mechanism includes left front door self-locking mechanism, left back door self-locking mechanism, right front door self-locking mechanism, right-rear-door self-locking mechanism.
A kind of control method based on described vehicle safety door open protection system:
Step 1, detect that door lock is opened；
Step 2, system electrification are run and complete to initialize；
Step 3, judge whether vehicle crashes, then perform next step if not, if then car door self-locking mechanism unlocks and returns step 3；
Step 4, judging that whether vehicle is static, if then performing next step, then car door self-locking mechanism unlocks and returns step 3 if not；
Step 5, judging whether to receive door lock for vehicle unlocking signal, then return step 3 if not, if then alarming protection function is opened, car door self-locking mechanism closes and performs next step；
Step 6, judging whether that the barrier having more than pre-set velocity threshold value is close to vehicle, then car door self-locking mechanism unlocks if not, if car door self-locking mechanism simultaneously of then reporting to the police remains closed, and performs next step；
If whether car door unlocks again in step 7, setting time, report to the police if then closing and return step 6；Then close if not and report to the police and return step 3.
In described step 2, after system is run, buzzer cuts out, and keeps car door self-locking mechanism to disconnect in released state.
Described step 3 judges whether crash by obtaining vehicle current vehicle speed, horizontal and vertical plus/minus velocity estimated, if the lateral direction of car obtained and longitudinal plus/minus speed are less than plus/minus threshold speed, and speed is less than speed threshold value, then it is judged to crash.
If after described step 6 is not above barrier and the door lock unblock of pre-set velocity threshold value, then judging whether vehicle is in flameout state again, then returning step 2 if not, if then judging whether door lock is locked again, then returning step 2 if not, if then closing closed system.
If described step 6 has more than the barrier of pre-set velocity threshold value, then detect solution locks door whether be positioned at homonymy with barrier again, if being positioned at homonymy, car door self-locking mechanism remains closed, reports to the police and perform step 7, if being not at homonymy, car door self-locking mechanism unlocks and returns step 3.
Have multiple if detection solution locks door and exist and be positioned at the car door of homonymy with barrier, then only keeping this side car door self-locking mechanism Guan Bi, report to the police and perform step 7, the unblock of opposite side car door self-locking mechanism.
Instant invention overcomes randomness and uncertainty that vision and sound sensation warning are understood by driver and crew, improve the effectiveness of system, compensate for the deficiency that current type of alarm exists, additionally, reduce vision and the interference to driver and crew of the sound sensation warning reminding mode.
Accompanying drawing explanation
The content below every width accompanying drawing in description of the present invention expressed is briefly described:
Fig. 1 is vehicle safety door open protection system block diagram；
Fig. 2 is vehicle safety door open protection system control method flow chart.
Detailed description of the invention
Guard system of the present invention uses more safe and reliable, there is active defense mechanism (car door self-locking mechanism), prevent in adventurous situation, driver and crew are after receiving warning message, because warning time delay or warning message could not be understood completely by driver and crew, driver and crew still open the door, then the generation of the collision accident that may result in.
As it is shown in figure 1, system includes control unit, radar module, CAN, buzzer, Meter Control Unit ICM, car door self-locking mechanism, automobile door lock status switch and system switching composition.
Control unit is the controlling organization that system is total, control unit is provided with CAN, and connect CAN by this module, the rear obstacle information that the automobile door lock status information of car load, door contact interrupter information, speed information, longitudinal direction of car deceleration information, lateral acceleration information and radar module gather is obtained from CAN, automobile door lock status information is whether car door door lock is pulled, and door contact interrupter information is car door is closure or openness state.
The I that radar module will return in real time, Q intermediate-freuqncy signal is after the processing circuitry of intermediate frequency of control unit processes, the A/D built-in through control unit processor converts digital signal to, be then passed through digital filtering and FFT, by Radar Algorithm identification and determine whether target enter rear view of vehicle alarm region.Radar module can acquired disturbance thing rate signal, whether the velocity estimated that breaks the barriers can collide, for improving acquisition precision, radar module is provided with multiple, side radar including collection vehicle left and right sides front and back obstacle information, and the rear radar of collection vehicle dead astern obstacle information, it is possible to specifically determine barrier location.The relative distance of useful target, position and the relative velocity that detection obtains is sent to control unit by independent CAN by ripple radar module.
Car door self-locking mechanism and car door door lock are two independent parts, each car door is equipped with, car door self-locking mechanism is the lockable mechanism that each car door additionally increases, car door self-locking mechanism is allowed or static unlatching by self-locking mechanism and built-in high-speed double electromagnet car door thereof, an i.e. electronic lock having electromagnetic valve to control, it includes left front door self-locking mechanism, left back door self-locking mechanism, right front door self-locking mechanism, right-rear-door self-locking mechanism.
When automobile door lock status switch unlocks, the high level signal of output can connect system power supply moment, and system electrification is run, and is then exported high level by control unit and keeps the connection of power supply.When system meets closedown condition, control unit 1 output low level, system power supply is cut off, thus reducing the static current consumption of system.
System is provided with system switching, and system switching output system switching signal is to control unit.When vehicle is in the section that flow of the people is many, rear continues have vehicle to enter alarm region, driver and crew are by later observation rear vehicle condition, determine can Safe getting-off time, the system switching button of position of driver can be passed through by system power supply hand off, automatically disconnecting after now self-locking mechanism power-off, now car door can by car door opening when without safety device.
Control unit is communicated by CAN and Meter Control Unit, control its built-in buzzer and carry out sound sensation prompting, this external system may be equipped with LED lamplight alarm device, LED lamplight alarm device is arranged on Meter Control Unit, link with buzzer, give the light prompt of flicker at audible alarm simultaneously, improve warning effect, it is also possible to distinguished with other warnings.
When this car stops, and after receiving the unblock instruction of car door door lock, after control unit receives door lock unblock instruction, system alarm function is opened, if now there being the speed moving target more than 5km/h to enter rear alarm region, control unit controls drive circuit by controlling car door door lock self-locking mechanism, to built-in electric magnet energising, self-locking mechanism closes, and now car door cannot be opened.If driver and crew have stirred door handle, when triggering door contact interrupter, driver and crew, by sending control instruction to Meter Control Unit, are carried out voice reminder by buzzer by system.When target leaves rear alarm region, buzzer stops voice reminder, and control unit controls drive circuit by controlling car door door lock self-locking mechanism, and to built-in electric magnet power-off, self-locking mechanism disconnects, and now car door can be opened.
When system alarm function is opened, if car door is in opening, then no matter whether rear has target to enter alarm region, and control unit gives the electromagnetic relay power-off that corresponding car door self-locking mechanism is built-in, reduces current loss.If now having target to enter alarm region meet alert if, then carry out early warning prompting by buzzer.
Based on the control method of above-mentioned vehicle safety door open protection system as in figure 2 it is shown, specifically comprise the following steps that
Step 1, detecting that door lock is opened, namely door lock lock system is started working；
Step 2, system electrification are run and complete to initialize；Car door self-locking mechanism is kept to disconnect in released state；
Step 3, judge whether vehicle crashes, then perform next step if not, if then car door self-locking mechanism unlocks and returns step 3；
Judging whether to crash by obtaining vehicle current vehicle speed, horizontal and vertical plus/minus velocity estimated, if the lateral direction of car obtained and longitudinal plus/minus speed are less than plus/minus threshold speed, and speed is less than speed threshold value, then be judged to crash；
Current car load is for regulation and security consideration, when crashing at vehicle, it is possible to ensure that car door is normally-open, so when designing car door door lock, even if on car door lock, driver and crew can also pass through twice sliding door handle or door is opened by unblock button.Although when Ben Che stops still, longitudinal or horizontal anxious acceleration or anxious decelerating vehicles deceleration occurring more than 6.8m/s if unexpected2Time, then show that this car is likely to by other vehicle collision, now car door self-locking mechanism automatic unlocking；This car speed is less than performing latching operation on car door self-locking mechanism under the state of 10km/h speed；When speed is more than 10km/h speed, do not perform this action.Prevent from vehicle from when crashing in the process of running at high speed, having little time that car door unlocks the thing causing car door to open to occur；
Step 4, judge that whether vehicle is static, if then performing next step, then car door self-locking mechanism unlocks and returns step 3 if not, current vehicle speed can be passed through and judge whether vehicle remains static, the detection whether advanced driving collision safety detection and vehicle remain static, it is possible to avoid car door self-locking mechanism repeatedly unlock and close；
Step 5, judging whether to receive door lock for vehicle unlocking signal, then return step 3 if not, if then alarming protection function is opened, car door self-locking mechanism closes and performs next step；
In addition work for coupled system, automobile door lockset has automatic locking function, after locking, each car door needs to pull open twice just can open car door, first time unlocks for car door, second time is opened for the lock of car door, now push then car door opening, check due to system every time and all detect when pulling a cart door lock, cross slow and car door self-locking mechanism front door of locking in order to avoid system response to be opened, after vehicle stopping time rating or Vehicle Speed reach preset vehicle speed, car door door lock all carries and locks, thus first opens car door and cannot push car door open, sufficient the locking the time of car door self-locking mechanism of system can be given.
Step 6, judging whether that the barrier having more than pre-set velocity threshold value is close to vehicle, then car door self-locking mechanism unlocks if not, if car door self-locking mechanism simultaneously of then reporting to the police remains closed, and performs next step；
In order to improve judgement precision, if having more than the barrier of pre-set velocity threshold value, then detecting solution locks door whether be positioned at homonymy with barrier again, if being positioned at homonymy, keeping door lock locking state, warning and performing step 7, if being not at homonymy, car door unlocks and returns step 3；Have multiple if detection solution locks door and exist and be positioned at the car door of homonymy with barrier, then only keeping this side automobile door locking to close, report to the police and perform step 7, the unblock of opposite side car door door lock.(there is no barrier) if not then car door self-locking mechanism unlock, then judge whether vehicle is in flameout state again, if not then return step 3, if then judging whether door lock is locked again, if not then return step 3, if then closing closed system；After system alarm function is closed, car door self-locking mechanism disconnects, and electric magnet is in off-position.
If whether car door unlocks again in step 7, setting time, report to the police if then closing and return step 6；Then close if not and report to the police and return step 3.
The control method of said system, it is possible to speed less than 3km/h and vehicle deceleration less than 6.8m/s2 time, systematic protection warning function is opened, and door lock is closed by system by controlling electric magnet, and car door cannot be opened.When speed is 0 and door lock is in opening, if the system detects that there is vehicle to enter rear alarm region, then car door self-locking mechanism keeps, and car door does not allow to open, and carries out dangerous prompting by buzzer.When target is away from alarm region, dangerous releasing, system is by electric magnet power-off, and self-locking mechanism disconnects, and now car door just can be opened, and buzzer warning is closed.
When vehicle stop, flame-out and door lock is closed time, control unit output low level is by corresponding control circuit shutoff own power source.When automobile door lock-switch unlocks next time, system power supply moment is connected by the high level exported by car door door lock, and control unit 1 exports high level and keeps system normal power supply.
Above in conjunction with accompanying drawing, the present invention is exemplarily described; the obvious present invention implements and is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that the design of the method for the present invention carries out with technical scheme; or the not improved design by the present invention and technical scheme directly apply to other occasion, all within protection scope of the present invention.
Claims (10)
1. a vehicle safety door open protection system; it is characterized in that: system is provided with control unit; described control unit obtains, from car load, the rear obstacle information that automobile door lock status information, door contact interrupter information, speed information, longitudinal direction of car deceleration information, lateral acceleration information and radar module gather by CAN; described control unit outputs control signals to car door self-locking mechanism, and described control unit communicates through CAN and Meter Control Unit and controls its built-in buzzer keying.
2. vehicle safety door open protection system according to claim 1, it is characterised in that: system is provided with system switching, and described system switching output system switching signal is to control unit.
3. vehicle safety door open protection system according to claim 1 and 2; it is characterized in that: described radar module is the Continuous Wave with frequency modulation millimetre-wave radar of detection left and right vehicle wheel rear and dead astern alarm region dynamic object, and the relative distance of useful target, position and the relative velocity that detection obtains is sent to control unit by independent CAN by described radar module.
4. vehicle safety door open protection system according to claim 3; it is characterized in that: described car door self-locking mechanism is allowed or static unlatching by self-locking mechanism and built-in high-speed double electromagnet car door thereof, and described car door self-locking mechanism includes left front door self-locking mechanism, left back door self-locking mechanism, right front door self-locking mechanism, right-rear-door self-locking mechanism.
5. the control method based on the vehicle safety door open protection system described in claim 1-4, it is characterised in that:
Step 1, detect that door lock is opened；
Step 2, system electrification are run and complete to initialize；
Step 3, judge whether vehicle crashes, then perform next step if not, if then car door self-locking mechanism unlocks and returns step 3；
Step 4, judging that whether vehicle is static, if then performing next step, then car door self-locking mechanism unlocks and returns step 3 if not；
Step 5, judging whether to receive door lock for vehicle unlocking signal, then return step 3 if not, if then alarming protection function is opened, car door self-locking mechanism closes and performs next step；
Step 6, judging whether that the barrier having more than pre-set velocity threshold value is close to vehicle, then car door self-locking mechanism unlocks if not, if car door self-locking mechanism simultaneously of then reporting to the police remains closed, and performs next step；
If whether car door unlocks again in step 7, setting time, report to the police if then closing and return step 6；Then close if not and report to the police and return step 3.
6. the control method of vehicle safety door open protection system according to claim 5, it is characterised in that: in described step 2, after system is run, buzzer cuts out, and keeps car door self-locking mechanism to disconnect in released state.
7. the control method of the vehicle safety door open protection system according to claim 5 or 6; it is characterized in that: described step 3 judges whether crash by obtaining vehicle current vehicle speed, horizontal and vertical plus/minus velocity estimated; if the lateral direction of car obtained and longitudinal plus/minus speed are less than plus/minus threshold speed; and speed is less than speed threshold value, then it is judged to crash.
8. the control method of vehicle safety door open protection system according to claim 7; it is characterized in that: if after described step 6 is not above barrier and the door lock unblock of pre-set velocity threshold value; then judge whether vehicle is in flameout state again; then return step 2 if not; if then judging whether door lock is locked again; then return step 2 if not, if then closing closed system.
9. the control method of vehicle safety door open protection system according to claim 8; it is characterized in that: if described step 6 has more than the barrier of pre-set velocity threshold value; then detect solution locks door whether be positioned at homonymy with barrier again; if being positioned at homonymy, car door self-locking mechanism remains closed, reports to the police and perform step 7, if being not at homonymy, car door self-locking mechanism unlocks and returns step 3.
10. the control method of vehicle safety door open protection system according to claim 9; it is characterized in that: have multiple if detection solution locks door and exist and barrier is positioned at the car door of homonymy; then only keeping this side car door self-locking mechanism Guan Bi, report to the police and perform step 7, opposite side car door self-locking mechanism unlocks.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610181573.8A CN105781275A (en) | 2016-03-28 | 2016-03-28 | Vehicle safety door opening protection system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610181573.8A CN105781275A (en) | 2016-03-28 | 2016-03-28 | Vehicle safety door opening protection system and control method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106627463A (en) * | 2016-12-22 | 2017-05-10 | 深圳市招科智控科技有限公司 | Unmanned bus visual perception system and work method for same |
| CN107023231A (en) * | 2016-09-14 | 2017-08-08 | 蔚来汽车有限公司 | System that vehicle latches method automatically and vehicle latches automatically |
| CN107083882A (en) * | 2017-05-25 | 2017-08-22 | 厦门理工学院 | A kind of anticollision car door delayed start-up system and its control method |
| CN107503623A (en) * | 2017-08-31 | 2017-12-22 | 北京汽车股份有限公司 | Control method, control system and the vehicle of car door |
| CN107839594A (en) * | 2016-09-21 | 2018-03-27 | 奥迪股份公司 | Obstacle detecting device and method for vehicle |
| CN107972581A (en) * | 2016-10-25 | 2018-05-01 | 大陆汽车投资（上海）有限公司 | Opening door of vehicle warning system |
| CN108716324A (en) * | 2018-03-26 | 2018-10-30 | 江苏大学 | A kind of enabling anti-collision system and method suitable for autonomous driving vehicle |
| CN110501700A (en) * | 2019-08-27 | 2019-11-26 | 四川长虹电器股份有限公司 | A kind of personnel amount method of counting based on millimetre-wave radar |
| CN114382357A (en) * | 2021-12-21 | 2022-04-22 | 浙江零跑科技股份有限公司 | Door opening control method of electric unlocking system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107023231A (en) * | 2016-09-14 | 2017-08-08 | 蔚来汽车有限公司 | System that vehicle latches method automatically and vehicle latches automatically |
| CN107839594A (en) * | 2016-09-21 | 2018-03-27 | 奥迪股份公司 | Obstacle detecting device and method for vehicle |
| CN107839594B (en) * | 2016-09-21 | 2020-10-13 | 奥迪股份公司 | Obstacle detection apparatus and method for vehicle |
| CN107972581A (en) * | 2016-10-25 | 2018-05-01 | 大陆汽车投资（上海）有限公司 | Opening door of vehicle warning system |
| CN106627463A (en) * | 2016-12-22 | 2017-05-10 | 深圳市招科智控科技有限公司 | Unmanned bus visual perception system and work method for same |
| CN107083882A (en) * | 2017-05-25 | 2017-08-22 | 厦门理工学院 | A kind of anticollision car door delayed start-up system and its control method |
| CN107083882B (en) * | 2017-05-25 | 2022-08-23 | 厦门理工学院 | Anti-collision car door delay opening system and control method thereof |
| CN107503623A (en) * | 2017-08-31 | 2017-12-22 | 北京汽车股份有限公司 | Control method, control system and the vehicle of car door |
| CN108716324A (en) * | 2018-03-26 | 2018-10-30 | 江苏大学 | A kind of enabling anti-collision system and method suitable for autonomous driving vehicle |
| CN110501700A (en) * | 2019-08-27 | 2019-11-26 | 四川长虹电器股份有限公司 | A kind of personnel amount method of counting based on millimetre-wave radar |
| CN114382357A (en) * | 2021-12-21 | 2022-04-22 | 浙江零跑科技股份有限公司 | Door opening control method of electric unlocking system |
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Application publication date: 20160720 |
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