CN201517333U - Automobile window anti-nip controller based on ripple current detection - Google Patents
Automobile window anti-nip controller based on ripple current detection Download PDFInfo
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- CN201517333U CN201517333U CN2009201968669U CN200920196866U CN201517333U CN 201517333 U CN201517333 U CN 201517333U CN 2009201968669 U CN2009201968669 U CN 2009201968669U CN 200920196866 U CN200920196866 U CN 200920196866U CN 201517333 U CN201517333 U CN 201517333U
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Abstract
The utility model discloses an automobile window anti-nip controller based on ripple current detection, which comprises a DC (direct current) motor U3 used for driving an automobile window, a controller U1 used for amplifying, conditioning and detecting ripple current of the DC motor U3 and generating drive signals, and a full-bridge driver U2 used for accomplishing control algorithm and generating drive signals to drive the DC motor U3; the controller U1 comprises an integrated programmable amplifier A1, a filter circuit, a PWM driver P2 and a central controller P1; the full-bridge driver U2 is provided with a counter-rotating circuit of the DC motor U3; the counter-rotating circuit is connected with the controller U1 through pins on the full-bridge driver U2; and a sampling resistor R1 of the ripple current is arranged between the controller U1 and the full-bridge driver U2. The utility model has the advantages of few external devices, simplification of circuit design, reduction of area of the circuit board, low cost and convenient installation and maintenance.
Description
Technical field
The utility model relates to a kind of anti-clip controller of automotive window, specifically is based on the anti-clip controller that ripple current detects.
Background technology
At present, realize the technical method of automobile anti-pinch power windows pinch resistant functionality, mainly contain two kinds of pressure sensing and infrared detection.
Infrared detection method is to utilize infrared light detection to have or not foreign matter in the power windows moving range, thereby the control glass for vehicle window moves, and this method can prevent that foreign matter from directly touching glass.But in this special applied environment of automobile, especially can badly influence the performance of infrared light supply down in harsh climate condition (heavy rain, thick fog and dust), under these extreme cases, infrared system is difficult to guarantee operate as normal, be unsuitable for the reliable request of automobile harshness, thus this scheme suffered main automotive electronics developers of great majority and automaker basically negate.
Automobile anti-pinch power windows based on the pressure sensing method is that application is more at present, this scheme often utilizes Hall element to monitor the motion of vehicle window (direction and position), when the vehicle window in the motion is subjected to horizontal or positive pressure, it can bring bigger load to electro-motor, and increases the electric current in the electro-motor subsequently.When this electric current is increased to a certain degree, the algorithm of this scheme just thinks that the glass of power windows has run into real resistance in uphill process, and send stall of command request motor or counter-rotating (decline), thereby effectively and reliably realized pinch resistant functionality by micro controller unit (MCU).
Hall element is used to provide the information such as number of revolutions of motor, and whether the algorithm of this scheme utilizes these information calculations to go out glass for vehicle window incoming terminal.When glass for vehicle window arrived the terminal of closing, MCU will send instruction and cut off electric current automatically, and electric current is cut off the back motor and has also just shut down.The shortcoming of this scheme is to have increased Hall element, and will design special installation site.
Summary of the invention
The utility model is for solving the problem that prior art in use exists, a kind of automotive window anti-clip control method that detects based on the motor ripple current is provided, does not need Hall element, without the specialized designs installation site, can simplify the installation of controller on car door, stable performance is provided.
The technical scheme that the utility model solves existing issue is: a kind of anti-clip controller of automotive window that detects based on the motor ripple current, comprise the direct current generator U3 that drives vehicle window, be used for amplifying and nurse one's health and detect direct current generator U3 ripple current and generate the controller U1 that drives signal, finish the full bridge driver U2 of control algolithm and generation drive direct current generator U3, described controller U1 comprises integrated programmable amplifier A1, filter circuit, pwm driver P2, central controller P1, full bridge driver U2 is provided with direct current generator U3 rotating loop, described rotating loop is connected with controller U1 by the pin on the full bridge driver U2, is provided with the sampling resistor R1 of ripple current between controller U1 and the full bridge driver U2.
The utility model compared with prior art, its beneficial effect is: move control program by a microcontroller and integrated programmable amplifier, filter circuit, PWM drive circuit and other analog circuit thereof as controller, microcontroller is connected to a full-bridge and drives chip, directly drives Car window electric machine by its integrated PWM drive circuit.The ripple current of Car window electric machine converts the ripple voltage signal to by resistance of serial connection on the grounding pin that drives chip at full-bridge, pass through integrated programmable amplifier and filter circuit in the microcontroller afterwards, convert square-wave signal and over-current signal to, rotating speed, position signals are provided, are used for judging whether to start pinch resistant functionality.The utility model is few based on the anti-clip controller external device of automotive window that the motor ripple current detects, and simplifies circuit design, reduces the area of circuit board; Cost is low, be convenient to installation and maintenance.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model;
Fig. 2, Fig. 3 are control flow charts of the present utility model.
The specific embodiment
Referring to Fig. 1, the implementation case comprises: drive vehicle window direct current generator U3, be used for amplifying and nurse one's health and detect direct current generator U3 ripple current and generate the controller U1 that drives signal, the full bridge driver U2 that finishes control algolithm and generation drive direct current generator U3, controller U1 comprises integrated programmable amplifier A1, filter circuit, pwm driver P2, central controller P1, dc isolation circuit A2, low-pass filter circuit A3, Schmidt's comparator A4, comparator B1, direction selector P3, counter P4.
Constitute by ripple current sampling resistor R1 that is connected full bridge driver U2 pin and the passive low-pass filter circuit formed by resistance R 2 and capacitor C 1 between controller U1 and the full bridge driver U2, and be connected by pin P1.0 with the programmable amplifier A1 of controller U1.
Full bridge driver U2 is used for the control signal of Transistor-Transistor Logic level is changed into the voltage signal that can directly drive direct current generator U3, full bridge driver U2 is provided with direct current generator U3 rotating loop, and the rotating loop is connected with controller U1 by the pin on the full bridge driver U2.The rotating loop of full bridge driver U2 is made of integrated metal-oxide-semiconductor T1, T2, T3, T4 in the implementation case, T1, T2, T3, T4 are connected with IH1, IH2, IL1, the IL2 pin that full-bridge type driver U2 is provided with respectively, IH1, IL1 pin are connected with the P1.5 pin of controller U1, and IH2, IL2 pin are connected with the P1.4 of controller U1; The sampling resistor R1 of direct current generator U3 ripple current is connected with the P1.0 pin of capacitor C 1 with controller U1 programmable amplifier A1 by passive low-pass filter circuit R2.
When T1 and T4 conducting, the electric current of default 12V then by pin SL2, flows to power supply ground by sampling resistor R1 by DHVS pin flow through T1, direct current generator U3, T4, and at this moment, direct current generator U3 just changes; When T2 and T3 conducting, 12V then by pin SL1, flows to power supply ground by sampling resistor R1 by DHVS pin flow through T2, direct current generator U3, T3, at this moment, and direct current generator U3 counter-rotating.When T1, T2, T3, T4 turn-offed, direct current generator U3 was out of service.The ripple current that direct current generator U3 produces when operation via sampling resistor R1, generates the ripple voltage signal, by passive low-pass filter circuit R2 and C1, is input to the P0.1 pin of controller U1.Metal-oxide-semiconductor T1, the T2 of full bridge driver U2, the shutoff of T3, T4 and conducting are by the signal controlling on IH1, IH2, IL1, the IL2 pin, and these signals are to be produced by the P1.4 of controller U1 and P1.5 pin.
Below in conjunction with the operating principle of the implementation case, further set forth the utility model.
Referring to Fig. 2, Fig. 3, direct current generator U3, when operation, can produce current ripples with periodic characteristic, this electric current can detect on the current loop of its full bridge driver U2, via sampling resistor R1, generates the ripple voltage signal, by passive low-pass filter circuit R2 and C1, the P0.1 of via controller U1 is input to the programmable amplifier A1 of controller U1, and it is about 4V that the ripple voltage signal from the input of P0.1 pin is amplified to peak value, offers comparator B1 and dc isolation circuit A2 respectively.Comparator B1 generates digital level 0 or 1 after the reference voltage Vref of ripple voltage signal after amplifying and setting is compared, and gives central controller P1 as the over-current detection signal; Dc isolation circuit A2, after the removal of the DC component of the ripple voltage after the amplification of P0.5 pin input, by the P0.3 pin, be input to active low-pass filter circuit A3, generate square-wave signal by Schmidt's comparator A4 then, deliver to central processing unit P1, and deliver to the current location that period measurement counting device P4 calculates direct current generator U3, the i.e. position of vehicle window by P1.Central processing unit P1 calculates whether start anti-pinching car window according to the signal of comparator B1 period measurement counting device P4.
The lifting key input of vehicle window is input to central processing unit P1 by the P1.1 pin, and central processing unit P1 exports 0 or 1 signal by pwm driver P2 and direction selector P3 and controls direct current generator U3 operation to P1.4 pin and P1.5 pin.When P1.5 pin output 1, the P1.4 pin was exported 0 o'clock, and direct current generator U3 just changes, and vehicle window rises; When P1.5 pin output 0, the P1.4 pin was exported 1 o'clock, direct current generator U3 counter-rotating, and vehicle window descends; When P1.5 pin output 0, the P1.4 pin was exported 0 o'clock, direct current generator U3 stall, and vehicle window is motionless.When vehicle window rises, if anti-pinch starts, controller will be controlled direct current generator U3 counter-rotating 3 seconds, stop then.
When controller U1 electrifying startup, from EEPROM, read the vehicle window position data simultaneously, read the button input then, if the operation of lifting vehicle window is arranged,, corresponding switching signal comes driven MOS pipe T1, T2, T3, T4 with regard to being set.When if vehicle window moves upward, detected over-current signal, at this moment, the vehicle window position starts the zone in anti-pinch again, controller U1 drives direct current generator U3 counter-rotating by metal-oxide-semiconductor T1, T2, T3, T4 and stops after 3 seconds with regard to the outbound course switching signal, and then pinch resistant operation is finished.No matter the motor elevating movement, controller U1 can by interrupting counting procedure record motor how many positions of having passed by, and when needed this positional information is write EEPROM.
At each circulation time, can detect voltage, if brownout just writes EEPROM to data, the loss of data of avoiding power down to cause.
The use that the utility model is more controller U1, full bridge driver U2, direct current generator U3, programmable amplifier A1, dc isolation circuit A2, active single order low-pass filter circuit A3, Schmidt's comparator A4, comparator B1, central controller P1, pwm driver P2, direction selector P3, counter P4, metal-oxide-semiconductor T1, T2, terms such as T3, T4, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (4)
1. an automotive window that detects based on ripple current is prevented clip controller, comprise the direct current generator U3 that drives vehicle window, be used for amplifying and nurse one's health and detect direct current generator U3 ripple current and generate the controller U1 that drives signal, finish the full bridge driver U2 of control algolithm and generation drive direct current generator U3, it is characterized in that: described controller U1 comprises integrated programmable amplifier A1, filter circuit, pwm driver P2, central controller P1, full bridge driver U2 is provided with direct current generator U3 rotating loop, described rotating loop is connected with controller U1 by the pin on the full bridge driver U2, is provided with the sampling resistor R1 of ripple current between controller U1 and the full bridge driver U2.
2. as claims 1 described anti-clip controller of automotive window that detects based on ripple current, it is characterized in that: the rotating loop of described full bridge driver U2 is made of integrated metal-oxide-semiconductor T1, T2, T3, T4, T1, T2, T3, T4 are connected with set IH1, IH2, IL1, the IL2 pin of full-bridge type driver U2 respectively, IH1, IL1 pin are connected with the P1.5 pin of controller U1, and IH2, IL2 pin are connected with the P1.4 of controller U1.
3. the anti-clip controller of automotive window that detects based on ripple current as claimed in claim 1, it is characterized in that: the sampling resistor R1 of described direct current generator U3 ripple current is connected with the P1.0 pin of capacitor C 1 with controller U1 programmable amplifier A1 by passive low-pass filter circuit R2.
4. the anti-clip controller of automotive window that detects based on ripple current as claimed in claim 1, it is characterized in that: described controller U1 also comprises dc isolation circuit A2, low-pass filter circuit A3, Schmidt's comparator A4, comparator B1, direction selector P3, counter P4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009201968669U CN201517333U (en) | 2009-09-22 | 2009-09-22 | Automobile window anti-nip controller based on ripple current detection |
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| CN2009201968669U CN201517333U (en) | 2009-09-22 | 2009-09-22 | Automobile window anti-nip controller based on ripple current detection |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536037A (en) * | 2010-12-09 | 2012-07-04 | 天津市松正电动汽车技术股份有限公司 | Electric car window controller and anti-pinch control method |
| CN102635288A (en) * | 2012-01-06 | 2012-08-15 | 陈雅莹 | Ripple wave anti-clamping controller of car window and control method |
| CN103306568A (en) * | 2013-06-19 | 2013-09-18 | 宁波恒特汽车零部件有限公司 | Circuit structure for controlling direct current motor of car window to rotate forwardly and reversely |
| CN103354438A (en) * | 2013-06-19 | 2013-10-16 | 宁波普林斯电机有限公司 | Vehicle-window direct-current motor positive inversion control circuit |
| CN103696649A (en) * | 2013-08-30 | 2014-04-02 | 奇瑞汽车股份有限公司 | Anti-pinch protection device and method for electric vehicle window |
| CN103711401A (en) * | 2013-12-06 | 2014-04-09 | 广西科技大学 | Anti-pinch control method and anti-pinch control system for electric window of automobile |
| CN103711402A (en) * | 2013-12-06 | 2014-04-09 | 广西科技大学 | Anti-pinch control method and anti-pinch control system for electric window of automobile |
| CN103711403A (en) * | 2013-12-06 | 2014-04-09 | 广西科技大学 | Anti-pinch control method and anti-pinch control system for electric window of automobile |
| CN104536363A (en) * | 2014-11-28 | 2015-04-22 | 哈尔滨广瀚燃气轮机有限公司 | Throttle control system logic signal conversion module |
| WO2016012231A1 (en) * | 2014-07-22 | 2016-01-28 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt | Adjustment device having a control unit provided with a bridge circuit |
| CN105927090A (en) * | 2016-06-30 | 2016-09-07 | 北京经纬恒润科技有限公司 | Position detecting method and device for door/window glass, door/window control system and automobile |
| CN106837045A (en) * | 2017-01-20 | 2017-06-13 | 上海纳恩汽车技术有限公司 | A kind of binary channels current sample vehicle window ripple anti-clipping system |
| CN107422258A (en) * | 2016-05-23 | 2017-12-01 | 现代自动车株式会社 | Apparatus and method for controlling ripple current motor sensor |
| CN107795220A (en) * | 2016-08-31 | 2018-03-13 | 贵阳华旭科技开发有限公司 | Automotive window ripple anti-clip control method |
| CN108071292A (en) * | 2016-11-18 | 2018-05-25 | 上海海拉电子有限公司 | A kind of anti-pinching car window detecting system and detection method |
| CN108457552A (en) * | 2017-02-20 | 2018-08-28 | 联合汽车电子有限公司 | A kind of window locations detection device and detection method |
| CN108608970A (en) * | 2018-04-24 | 2018-10-02 | 江铃汽车股份有限公司 | A kind of Body Control structure system of hardware and software platform |
| CN108768227A (en) * | 2018-06-27 | 2018-11-06 | 深圳市歌尔泰克科技有限公司 | Automatic coffee machine and its circuit for controlling motor |
| CN109085500A (en) * | 2018-08-06 | 2018-12-25 | 芜湖莫森泰克汽车科技股份有限公司 | A kind of detection test macro of direct current generator current ripples parameter |
| CN109972959A (en) * | 2019-01-30 | 2019-07-05 | 深圳市赛格车圣科技有限公司 | It is integrated with the BCM car body controller and automobile of PEPS, IMMO and anti-pinching car window function |
| CN111098808A (en) * | 2019-12-12 | 2020-05-05 | 北京经纬恒润科技有限公司 | Method and system for controlling vehicle body closed part based on direct current motor ripple |
| CN112610106A (en) * | 2020-12-15 | 2021-04-06 | 重庆集诚汽车电子有限责任公司 | Automobile window anti-pinch control method adopting corrugated motor as driving motor |
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2009
- 2009-09-22 CN CN2009201968669U patent/CN201517333U/en not_active Expired - Fee Related
Cited By (35)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102536037A (en) * | 2010-12-09 | 2012-07-04 | 天津市松正电动汽车技术股份有限公司 | Electric car window controller and anti-pinch control method |
| CN102536037B (en) * | 2010-12-09 | 2015-09-30 | 天津市松正电动汽车技术股份有限公司 | A kind of power vehicle window controller and anti-clip control method |
| CN102635288A (en) * | 2012-01-06 | 2012-08-15 | 陈雅莹 | Ripple wave anti-clamping controller of car window and control method |
| CN103306568A (en) * | 2013-06-19 | 2013-09-18 | 宁波恒特汽车零部件有限公司 | Circuit structure for controlling direct current motor of car window to rotate forwardly and reversely |
| CN103354438A (en) * | 2013-06-19 | 2013-10-16 | 宁波普林斯电机有限公司 | Vehicle-window direct-current motor positive inversion control circuit |
| CN103354438B (en) * | 2013-06-19 | 2016-06-29 | 宁波普林斯电机有限公司 | Vehicle-window direct-current motor positive inversion control circuit |
| CN103306568B (en) * | 2013-06-19 | 2016-02-17 | 宁波恒特汽车零部件有限公司 | For controlling the circuit structure of window direct-current motor rotating |
| CN103696649A (en) * | 2013-08-30 | 2014-04-02 | 奇瑞汽车股份有限公司 | Anti-pinch protection device and method for electric vehicle window |
| CN103696649B (en) * | 2013-08-30 | 2016-08-17 | 奇瑞汽车股份有限公司 | Anti-clamping protective device and method for power windows |
| CN103711403A (en) * | 2013-12-06 | 2014-04-09 | 广西科技大学 | Anti-pinch control method and anti-pinch control system for electric window of automobile |
| CN103711402A (en) * | 2013-12-06 | 2014-04-09 | 广西科技大学 | Anti-pinch control method and anti-pinch control system for electric window of automobile |
| CN103711402B (en) * | 2013-12-06 | 2016-01-20 | 广西科技大学 | The anti-clip control method of automobile electric car-window and system |
| CN103711403B (en) * | 2013-12-06 | 2016-01-20 | 广西科技大学 | The anti-clip control method of automobile electric car-window and system |
| CN103711401A (en) * | 2013-12-06 | 2014-04-09 | 广西科技大学 | Anti-pinch control method and anti-pinch control system for electric window of automobile |
| CN103711401B (en) * | 2013-12-06 | 2016-04-13 | 广西科技大学 | The anti-clip control method of automobile electric car-window and system |
| WO2016012231A1 (en) * | 2014-07-22 | 2016-01-28 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt | Adjustment device having a control unit provided with a bridge circuit |
| US10218297B2 (en) | 2014-07-22 | 2019-02-26 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Bamberg | Adjustment device having a control unit provided with a bridge circuit |
| CN104536363A (en) * | 2014-11-28 | 2015-04-22 | 哈尔滨广瀚燃气轮机有限公司 | Throttle control system logic signal conversion module |
| CN104536363B (en) * | 2014-11-28 | 2017-05-10 | 哈尔滨广瀚燃气轮机有限公司 | Throttle control system logic signal conversion module |
| CN107422258A (en) * | 2016-05-23 | 2017-12-01 | 现代自动车株式会社 | Apparatus and method for controlling ripple current motor sensor |
| CN105927090A (en) * | 2016-06-30 | 2016-09-07 | 北京经纬恒润科技有限公司 | Position detecting method and device for door/window glass, door/window control system and automobile |
| CN107795220A (en) * | 2016-08-31 | 2018-03-13 | 贵阳华旭科技开发有限公司 | Automotive window ripple anti-clip control method |
| CN108071292B (en) * | 2016-11-18 | 2019-10-01 | 上海海拉电子有限公司 | A kind of anti-pinching car window detection system and detection method |
| CN108071292A (en) * | 2016-11-18 | 2018-05-25 | 上海海拉电子有限公司 | A kind of anti-pinching car window detecting system and detection method |
| CN106837045B (en) * | 2017-01-20 | 2018-08-10 | 上海纳恩汽车技术有限公司 | A kind of binary channels current sample vehicle window ripple anti-clipping system |
| CN106837045A (en) * | 2017-01-20 | 2017-06-13 | 上海纳恩汽车技术有限公司 | A kind of binary channels current sample vehicle window ripple anti-clipping system |
| CN108457552A (en) * | 2017-02-20 | 2018-08-28 | 联合汽车电子有限公司 | A kind of window locations detection device and detection method |
| CN108457552B (en) * | 2017-02-20 | 2020-01-14 | 联合汽车电子有限公司 | Vehicle window position detection device and detection method |
| CN108608970A (en) * | 2018-04-24 | 2018-10-02 | 江铃汽车股份有限公司 | A kind of Body Control structure system of hardware and software platform |
| CN108768227A (en) * | 2018-06-27 | 2018-11-06 | 深圳市歌尔泰克科技有限公司 | Automatic coffee machine and its circuit for controlling motor |
| CN109085500A (en) * | 2018-08-06 | 2018-12-25 | 芜湖莫森泰克汽车科技股份有限公司 | A kind of detection test macro of direct current generator current ripples parameter |
| CN109972959A (en) * | 2019-01-30 | 2019-07-05 | 深圳市赛格车圣科技有限公司 | It is integrated with the BCM car body controller and automobile of PEPS, IMMO and anti-pinching car window function |
| CN111098808A (en) * | 2019-12-12 | 2020-05-05 | 北京经纬恒润科技有限公司 | Method and system for controlling vehicle body closed part based on direct current motor ripple |
| CN111098808B (en) * | 2019-12-12 | 2022-06-07 | 北京经纬恒润科技股份有限公司 | Method and system for controlling vehicle body closed part based on direct current motor ripple |
| CN112610106A (en) * | 2020-12-15 | 2021-04-06 | 重庆集诚汽车电子有限责任公司 | Automobile window anti-pinch control method adopting corrugated motor as driving motor |
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