CN105201319B - A kind of four anti-pinching car window methods based on dual-Hall sensor and direct current generator - Google Patents
A kind of four anti-pinching car window methods based on dual-Hall sensor and direct current generator Download PDFInfo
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- CN105201319B CN105201319B CN201510756605.8A CN201510756605A CN105201319B CN 105201319 B CN105201319 B CN 105201319B CN 201510756605 A CN201510756605 A CN 201510756605A CN 105201319 B CN105201319 B CN 105201319B
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Abstract
The invention discloses a kind of four anti-pinching car window methods based on dual-Hall sensor and direct current generator, this method comprises the following steps：The relevant parameter of power window clamp prevention system, including anti-pinch region, the size of anti-grip force and the linear rigidity of anti-clipping system are set；Current of electric detection is carried out with sample resistance, the background power to power windows is demarcated, determine that glass rises the integration threshold values for running into barrier；The detection that controller carries out pulse number by the Hall sensor in the motor of each Car's door controlling lifting glass for vehicle window obtains the positional information of glass for vehicle window；The detection that controller carries out pulse width by the second Hall sensor in motor obtain glass for vehicle window by force information；With reference to the detection information of Hall sensor and direct current generator electric current, judge whether glass for vehicle window runs into barrier, implement pinch resistant operation.
Description
Technical field
The present invention relates to technical field of vehicle safety, more particularly to it is a kind of based on dual-Hall sensor and direct current generator four
Door anti-pinching car window method.
Background technology
With the fast development of automobile industry, the popularity more and more higher of car.The lifting of Modern Car door glass
Mode has abandoned the hand-operated lifting mode of crank type substantially, generally using the electric up-down mode of push button.But electric up-down
There is larger potential safety hazard in the vehicle window of mode.Up to the present a lot of passengers are raised the accident that vehicle window crushes and are reported, its
Middle most of the wounded is children, therefore to meet the demand of growing drive safety and comfortableness, present electronic glass
Glass lifter almost has become the basic configuration of automobile, and the electronic Anti-pinch glass lifting on high-grade car is only assemblied in originally
Device, is gradually used by more low and middle-grade cars, and this turns into a kind of trend of following glass-frame riser development.
So-called clamp-proof car window, just refers to, when vehicle window rises automatically, deposit if having detected barrier in uphill process
When, vehicle window just invert immediately after a segment distance stop, to discharge barrier, thus reached the purpose of anti-pinch.
At present, Anti-pinch glass lifting device popular from pinch resistant functionality is broadly divided into two classes：Contact and contactless.Connect
Touch refers to that when power-operated window system has felt foreign matter on glass, then glass rising work can be automatically stopped；It is contactless
Refer to detect foreign be present in the moving range of vehicle window by optical control, and then the movement of control glass,
Enter and directly contact glass without foreign matter.The main components of this optical control are optical sensor, and it is by red
Outer emitter and receiver are constituted, and it is arranged on the inside gadget of vehicle window, and continuously designated area accurately can be scanned.
Because the cost of the latter is higher and performance is unstable, the present invention, which is used, is ensureing the situation of high reliability and advantage of lower cost
Under the Anti-pinch glass lifting device of contact is deployed to study.
The content of the invention
The technical problem to be solved in the present invention is for defect of the prior art there is provided one kind based on double hall sensings
Four anti-pinching car window methods of device and direct current generator.
The technical solution adopted for the present invention to solve the technical problems is：One kind is based on dual-Hall sensor and direct current generator
Four anti-pinching car window methods, comprise the following steps：
1) relevant parameter of power window clamp prevention system, including anti-pinch region, the size and anti-clipping system of anti-grip force are set
Linear rigidity；
2) controller is carried out by the Hall sensor 1 in the motor of each Car's door controlling glass regulator
The detection of pulse number obtains the positional information of glass for vehicle window；
3) current of electric detection is carried out with sample resistance, the background power to power windows is demarcated, on this basis root
Required according to standard, determine the corresponding relation of anti-grip force and current of electric and determine that glass rises the integration threshold values for running into barrier；
And by the Hall sensor 2 in motor enter horizontal pulse it is wide detection obtain glass for vehicle window by force information；
4) controller determines whether the position of vehicle window is operated within the scope of anti-pinch according to the positional information of glass for vehicle window；So
The phase difference with reference to two pulse signals judges the direction of motion of glass for vehicle window afterwards；If the position of glass for vehicle window is in ascent stage
Anti-pinch region, the detection that controller carries out pulse width according to Hall sensor obtain glass for vehicle window by force information, judge
By force information and background power relation and determine that the pre-set threshold value of pulse width (is obtained by the method for many experiments according to background power
)；
Pre-set threshold value：Pulse width when motor is operated is very average and smaller, and fast by pulse width during resistance
Speed increase, and be operating when tens times of pulse width, so pre-set threshold value first by off-line simulation determine one substantially just
Initial value, then accurate pre-set threshold value is finally determined by actual motion institute stress size monitoring corresponding pulses width size.
5) detection information of dual-Hall sensor and direct current generator electric current is combined, when the position of glass for vehicle window is in raised bench
The anti-pinch region of section, the pulse width of Hall sensor is more than pre-set threshold value and the integrated value of direct current generator current curve is more than
Glass rises then judges that glass for vehicle window runs into barrier, comes into effect pinch resistant operation when running into the integration threshold values of barrier.
If 6) four vehicle windows are operated simultaneously, 8 road hall signals and 4 road current acquisition signals can be produced, described four anti-
Folder control is concentrated on a controller and handled, and four vehicle windows is occurring while rising and reaching the limiting case of anti-pinch index
Under, processor response reaches the car door of anti-pinch index at first, while providing bus marco instruction so that remaining car door is not up to
Or be to come into effect pinch resistant operation in the case of being up to anti-pinch, so as to reach the purpose of four anti-pinch.
By such scheme, the step 1) in anti-pinch region be apart from 4mm at the top of vehicle window to 200mm open ranges；Anti-pinch
The size of power is 100N；The linear rigidity of anti-clipping system is 50N/mm.
By such scheme, the step 2) obtain glass for vehicle window positional information it is specific as follows：The pulse of Hall sensor
Signal comes from identification installation and the rotation of motor output revolving shaft upper magnetic ring, and pulse number produced by motor often rotates a circle is fixed
Value, judges whether glass for vehicle window is in anti-pinch region by the pulse number of counter records Hall sensor.
By such scheme, the step 4) obtain glass for vehicle window direction of motion information it is specific as follows：It is described to be arranged on electricity
Hall sensor in machine is used to produce the square-wave pulse signal corresponding with rotor rotation situation, double hall sensings
Device can produce two-way hall signal, and two-way hall signal has certain phase difference, then in conjunction with the phase of two pulse signals
Potential difference judges the direction of motion of glass for vehicle window.
By such scheme, the step 5) in, if four vehicle windows are operated simultaneously, the detection of four vehicle windows can produce 8 tunnels suddenly
That signal and 4 road current acquisition signals, the anti-pinch control of described four, which is concentrated on a controller, to be handled, if there are four cars
Window rises and reached simultaneously the limiting case of anti-pinch index, and processor response reaches the car door of anti-pinch index at first, and provides total
Line traffic control is instructed so that remaining car door starts simultaneously at implementation pinch resistant operation in the case where not up to or being i.e. up to anti-pinch.
By such scheme, the main control chip that the controller is chosen is 16 high-performance processors of Freescale companies,
By PHASE-LOCKED LOOP PLL TECHNIQUE system clock frequency multiplication to 40MHZ, the sample frequency of hall signal and the speed of service of program are improved, and
It has 8 cycles and the programmable independent PWM passages of dutycycle, and each passage has independent counter and allows register, with
Meet the collection of 8 road hall signals.
The beneficial effect comprise that：Pulse width of the invention based on Hall sensor is combined with current detecting
Algorithm greatly improve the reliability and robustness of system, can effectively reduce anti-pinching car window flase drop wrong report；By to anti-pinch
The reasonable setting of system stiffness so that automobile door anti-clamping system more hommization；By the anti-pinch for each power windows that will disperse
Control system switchs to four clamping-proof control system frameworks of centralization, and improving the efficiency of system reduces cost.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the vehicle window area distribution schematic diagram of the embodiment of the present invention；
Fig. 2 is the Hall sensor of the embodiment of the present invention and the system block diagram of current detecting；
Fig. 3 is the typical application drawings of MC33993 of the embodiment of the present invention；
Fig. 4 is the centralized clamping-proof control system Organization Chart of the embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein is not used to limit only to explain the present invention
The fixed present invention.
A kind of four anti-pinching car window algorithms based on dual-Hall sensor Yu direct current generator current detecting, include following step
Suddenly：
(1) relevant parameter of clear and definite power window clamp prevention system, the definition in anti-pinch region and non-anti-pinch region, anti-grip force
The linear rigidity of size and anti-clipping system；
Such as the distribution schematic diagram that Fig. 1 is vehicle window region, the scope in anti-pinch region is to from vehicle window top apart from 4mm at the top of vehicle window
Portion 200mm this region, and the scope beyond anti-pinch region is referred to as non-anti-pinch region.In non-anti-pinch region, just meet at last
Obstruction is arrived or has run into power effect more than limit value, motor will not also invert, therefore, and we ensure that vehicle window rises
Fitted glass guide-rail adhesive tape, that is, that time shut completely to top, motor shuts down.In vehicle window uphill process
In, the factor of hommization is considered, if just doing corresponding until the hand of people or other positions are crushed in vehicle window uphill process
Anti-pinch measure, then pinch resistant functionality also just lose its meaning.This is accomplished by the value of rational setting system stiffness, can consider
The factor of hommization, is avoided that anti-pinch by mistake again.
(2) detection for carrying out pulse number by Hall sensor 1 obtains the positional information of glass for vehicle window；Use sample resistance
Current of electric detection is carried out, the background power to vehicle window is demarcated, required on this basis according to standard, determine anti-grip force and electricity
The corresponding relation of electromechanics stream simultaneously determines that glass rises the integration threshold values for running into barrier, and the hall sensing in motor
The pulse width that device 2 is detected, the judgement of stress is completed by the size and pulse width threshold values double standards of current of electric；
System block diagram based on dual-Hall sensor and direct current generator current detecting is as shown in Figure 2.
(3) position of pulse number and the detection acquisition glass for vehicle window of pulse width is carried out respectively by two Hall sensors
Put with by force information, the direction of motion of glass for vehicle window is judged then in conjunction with the phase difference of two pulse signals；It is straight to what is detected
Stream motor current curve is integrated, and the curve integrated value in certain time and glass are risen to curve when running into barrier and integrated
Threshold values compare obtain glass for vehicle window by force information；Finally, believe with reference to the detection of dual-Hall sensor and direct current generator electric current
Breath, when the position of glass for vehicle window is in the anti-pinch region of ascent stage, the pulse width of Hall sensor is more than pre-set threshold value simultaneously
And the integrated value of direct current generator current curve is more than glass and risen and then judges that glass for vehicle window is met when running into the integration threshold values of barrier
To barrier, pinch resistant operation is come into effect.
(4) main control chip that the control system is chosen is 16 high-performance processors of Freescale companies, by locking phase
System clock frequency multiplication to 40MHZ is improved the sample frequency of hall signal and the speed of service of program by loop technique, and main control chip leads to
Cross SPI and MC33993 to communicate to obtain external switch signal, and then corresponding module is controlled by relay board.Being handed over MC33993 more
It is the closure and opening for detecting up to 22 switch contacts to change detection interface.Communication between the device and microprocessor is used
SPI interface agreement, its typical case's application is as shown in Figure 3.Serial device interfaces SPI is mainly used in synchronous serial communication, and it has MCU
For the ability that communication is synchronized with ancillary equipment and other microprocessors, processor can be also realized in multi-master system
Between communication.As shown in figure 4, will on one module be handled in the anti-pinch domination set of four, rather than it is traditional each electronic
Vehicle window has an independent anti-pinch control module, passes through the control of centralization so that be distributed in the multiple of each closed-system
Node merges into one, so, in four vehicle windows of appearance while rising and reaching under the limiting case of anti-pinch index, processor rings
The car door of anti-pinch index should be reached at first, and provide bus marco instruction so that remaining car door is being not up to or is being up to anti-
Four start simultaneously at implementation pinch resistant operation in the case of folder, so as to reach the purpose of four anti-pinch, so not only greatly reduce
The complexity of system, also achieves the function of four anti-pinching car windows.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (4)
1. a kind of four anti-pinching car window methods based on dual-Hall sensor and direct current generator, it is characterised in that including following step
Suddenly：
1）The relevant parameter of power window clamp prevention system, including anti-pinch region, the size of anti-grip force and the line of anti-clipping system are set
Property rigidity；
2）Controller carries out arteries and veins by the first Hall sensor in the motor of each Car's door controlling lifting glass for vehicle window
The detection for rushing number obtains the positional information of glass for vehicle window；The step 2）The positional information for obtaining glass for vehicle window is specific as follows：
The pulse signal of Hall sensor, which comes from identification, to be installed and is often rotated a circle institute with the rotation of motor output revolving shaft upper magnetic ring, motor
Generation pulse number is definite value, judges whether glass for vehicle window is in by the pulse number of counter records Hall sensor anti-
In nip domain；
3）Current of electric detection is carried out with sample resistance, the background power to power windows is demarcated, on this basis according to mark
Alignment request, determines the corresponding relation of anti-grip force and current of electric and determines that glass rises the integration threshold values for running into barrier；Control
The detection that device carries out pulse width by the second Hall sensor in motor obtain glass for vehicle window by force information；
4）Judge the direction of motion of glass for vehicle window with reference to the phase difference of two pulse signals；Controller is according to the position of glass for vehicle window
Information determines whether the position of vehicle window is operated within the scope of anti-pinch；If the position of glass for vehicle window is in the anti-nip of ascent stage
Domain, controller, by force information, is judged by force information according to the detection acquisition glass for vehicle window of Hall sensor progress pulse width
The pre-set threshold value of pulse width is determined with the relation of background power and according to background power；
The step 4）The direction of motion information for obtaining glass for vehicle window is specific as follows：The Hall sensor in motor
For producing the square-wave pulse signal corresponding with rotor rotation situation, dual-Hall sensor can produce two-way Hall
Signal, and two-way hall signal has certain phase difference, and glass for vehicle window is judged then in conjunction with the phase difference of two pulse signals
The direction of motion；
5）With reference to the detection information of Hall sensor and direct current generator electric current, when the position of glass for vehicle window is in the anti-of ascent stage
Nip domain, the pulse width of Hall sensor is more than pre-set threshold value and the integrated value of direct current generator current curve is more than on glass
Rise and then judge that glass for vehicle window runs into barrier, comes into effect pinch resistant operation when running into the integration threshold values of barrier.
2. four anti-pinching car window methods according to claim 1, it is characterised in that the step 1）Middle anti-pinch region be away from
From 4mm at the top of vehicle window to 200mm open ranges；The size of anti-grip force is 100N；The linear rigidity of anti-clipping system is 50N/mm.
3. four anti-pinching car window methods according to claim 1, it is characterised in that the step 5）In, if four vehicle windows
Operate simultaneously, the detection of four vehicle windows can produce 8 road hall signals and 4 road current acquisition signals, the anti-pinch control of described four
Concentrate on a controller and handle, if there is the limiting case that four vehicle windows rise and reached simultaneously anti-pinch index, processor
Response reaches the car door of anti-pinch index at first, and provides bus marco instruction so that remaining car door is up to not up to or i.e.
Implementation pinch resistant operation is started simultaneously in the case of anti-pinch.
4. four anti-pinching car window methods according to claim 3, it is characterised in that the main control chip that the controller is chosen
For 16 high-performance processors of Freescale companies, by PHASE-LOCKED LOOP PLL TECHNIQUE system clock frequency multiplication to 40MHZ, improve suddenly
The sample frequency and the speed of service of program of your signal, and it has 8 cycles and the programmable independent PWM passages of dutycycle, often
Individual passage has independent counter and allows register, to meet the collection of 8 road hall signals.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510756605.8A CN105201319B (en) | 2015-11-06 | 2015-11-06 | A kind of four anti-pinching car window methods based on dual-Hall sensor and direct current generator |
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| CN201510756605.8A CN105201319B (en) | 2015-11-06 | 2015-11-06 | A kind of four anti-pinching car window methods based on dual-Hall sensor and direct current generator |
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| CN105201319B true CN105201319B (en) | 2017-09-29 |
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| CN107143246A (en) * | 2016-03-01 | 2017-09-08 | 德昌电机(深圳)有限公司 | window lifting control system and control method |
| CN106193879A (en) * | 2016-07-26 | 2016-12-07 | 深圳市金证卡尔电子有限公司 | A kind of control device and method of the multi-functional anti-pinch of vehicle window Hall |
| CN106499294B (en) * | 2016-10-17 | 2018-06-01 | 青岛海信移动通信技术股份有限公司 | A kind of control system of automobile windows |
| CN106869670B (en) * | 2017-03-23 | 2019-08-30 | 东莞雅音电子科技有限公司 | Electric door detection device and detection control method |
| CN106703591B (en) * | 2017-03-29 | 2017-12-12 | 武汉佳特轿车零部件有限公司 | Electric tail gate control system |
| KR20180115925A (en) * | 2017-04-14 | 2018-10-24 | 현대자동차주식회사 | Apparatus for controlling window of vehicle and method thereof |
| CN109249851A (en) * | 2017-07-14 | 2019-01-22 | 郑州宇通客车股份有限公司 | A kind of expansion cabin control system and its anti-clip control method |
| CN107489333A (en) * | 2017-08-01 | 2017-12-19 | 宁波普龙汽车电子科技有限公司 | A kind of electric car window anti-pinch parameter learning method and anti-pinching car window control method |
| JP6491302B1 (en) * | 2017-12-07 | 2019-03-27 | 東芝エレベータ株式会社 | Elevator door control device and elevator door control method |
| CN108662717A (en) * | 2018-03-30 | 2018-10-16 | 广东美的制冷设备有限公司 | Opening-closing structure control method, air conditioner and the readable storage medium storing program for executing of air conditioner |
| CN108646044B (en) * | 2018-03-30 | 2020-01-14 | 武汉理工大学 | Bumpy road surface detection method based on rotating speed of window motor |
| CN108595779A (en) * | 2018-04-02 | 2018-09-28 | 武汉理工大学 | A kind of automobile door glass thrust center point determines method |
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| CN109178001B (en) * | 2018-08-30 | 2020-06-26 | 工业和信息化部电子第五研究所华东分所 | Subway door control method and device and computer readable storage medium |
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| CN112211520B (en) * | 2019-07-10 | 2021-10-15 | 北京经纬恒润科技股份有限公司 | Anti-pinch detection method and system |
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