CN106703583B - The anti-clip control method of power windows and its stall control method of motor - Google Patents
The anti-clip control method of power windows and its stall control method of motor Download PDFInfo
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- CN106703583B CN106703583B CN201611199865.0A CN201611199865A CN106703583B CN 106703583 B CN106703583 B CN 106703583B CN 201611199865 A CN201611199865 A CN 201611199865A CN 106703583 B CN106703583 B CN 106703583B
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- 230000000284 resting effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 24
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- 238000010586 diagram Methods 0.000 description 13
- 230000000875 corresponding effect Effects 0.000 description 8
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- 230000006870 function Effects 0.000 description 7
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
- E05F15/689—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings specially adapted for vehicle windows
- E05F15/695—Control circuits therefor
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Type of wing
- E05Y2900/55—Windows
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- Power-Operated Mechanisms For Wings (AREA)
- Window Of Vehicle (AREA)
Abstract
The present invention discloses a kind of anti-clip control method of power windows and its stall control method of motor.The anti-clip control method includes：Detect the inductance resistance of the Car window electric machine of power windows；Exported according to inductance resistance metaplasia into pulse wave signal；Judged according to inductance resistance and pulse wave signal, when occurring to press from both sides thing, anti-clip control signal output is generated, to control power windows to invert.The anti-clip control method of the present invention carries out anti-pinch judgement by detectable voltage signals and pulse wave signal, so as to generate anti-clip control signal when judging and sending anti-pinch, to control the reversion of vehicle window, realizes anti-pinch protection, the precision of detection is high.
Description
Technical field
The present invention relates to automotive window anti-pinch and motor rotation blockage design protection field, more particularly to one kind to be based on brush motor
The anti-clip control method of power windows and its stall control method of motor.
Background technology
Existing automotive window anti-clipping system design is complicated, it is necessary to install connection at each car door electric motor of vehicle
Anti-pinch detects sensing device, and installation and debugging bother, and system complex is unstable.
And for some original vehicle windows for not possessing pinch resistant functionality, if to be reequiped, need the original to automobile
There is circuit system to be improved, and need to be installed at each car door electric motor of vehicle, cost is very high, and pacifies
Dress, debugging and maintenance are all pretty troublesome.
Also, the more existing system with anti-pinch design, is all based on sensor sensing electric current or current detecting ratio
Relatively carry out judging whether that anti-pinch occurs, determine that the judgement key element of anti-pinch is single, influence the accuracy of anti-pinch judgement.
Moreover, it is mainly by sensor detection or current detecting to carry out the method for motor rotation blockage and circuit currently on the market
Realize.For example, the Chinese patent of Application No. 201210181027 discloses a kind of motor rotation blockage protection circuit and its protection
Method, it is that the tach signal that motor is detected by magnet ring and velocity sensor carries out stall judgement, and this mode circuit is answered
It is miscellaneous, and with the service wear of motor, what its rotating speed necessarily changed, when thus carrying out parameter value and compare, its is accurate
Degree can be reduced with the use of motor.For another example, the Chinese patent of Application No. 201210062086 discloses a kind of door and window
Motor rotation blockage guard method and system, it is to realize that stall judges by current detecting, due to electric current change with it is a variety of because
It is known as under pass, such as the transient overload condition of booting moment and motor, electric current is all bigger, similar to locked rotor current, therefore, this
Kind mode is easier to judge by accident.
The content of the invention
According to an aspect of the invention, there is provided a kind of anti-clip control method of power windows, to solve the above problems
It is at least one.This method includes：
Detect the inductance resistance of the Car window electric machine of power windows；
Exported according to inductance resistance metaplasia into pulse wave signal；
Judged according to inductance resistance and pulse wave signal, when occurring to press from both sides thing, generate anti-clip control signal output,
To control power windows to invert.
The anti-clip control method of the present invention carries out anti-pinch judgement by detectable voltage signals and pulse wave signal, so as to sentence
It is disconnected to occur to generate anti-clip control signal during folder thing, to control the reversion of vehicle window, realize anti-pinch protection, the precision of detection is high.
In some embodiments, detecting the inductance resistance of the Car window electric machine of power windows includes：In power windows
Series load component on motor, and the level-one amplifying circuit in parallel on load component, are detected negative by level-one amplifying circuit
Carry the voltage signal output on component.Using having brush rotor electric machine (i.e. motor) in energization rotary course, its Inside coil
Constantly change the principle of size due to the continuous break-make of rotor and electrode, the series load member device in the rotation circuit of motor
Part, can react the inductance resistance of Car window electric machine by detecting the voltage signal on load component.
In some embodiments, included according to inductance resistance metaplasia into pulse wave signal output：By level-one amplifying circuit
Output terminal be connected to second amplifying circuit, the voltage signal life for the change that second amplifying circuit is exported according to level-one amplifying circuit
Exported into pulse wave signal.Due to the change resisted with inductance, level-one amplifying circuit will export corrugated voltage signal, to this
It is that can obtain the pulse wave signal of low and high level mechanical periodicity that corrugated voltage signal, which carries out two level amplifier, by calculating pulse
The periodicity of ripple signal can accurately reflect the stroke of Car window electric machine.Also, pass through the output terminal in level-one amplifying circuit
Access second amplifying circuit can export pulse wave signal automatically according to voltage signal, realize simply, save component, reduce into
This.
In some embodiments, judged according to inductance resistance and pulse wave signal, when occurring to press from both sides thing, generation
Anti- clip control signal output, to control power windows reversion to include：Initialized, obtain one way rotating cycle and to top voltage
Prestore；Voltage signal is obtained by the output terminal of level-one amplifying circuit, and is obtained by the output terminal of second amplifying circuit
Pulse wave signal；Judge whether power windows is automatic lifting windows process according to voltage signal and/or pulse wave signal, when to be automatic
When rising window process, the voltage signal of acquisition is matched with prestoring to top voltage, when voltage signal arrives top more than what is prestored
During voltage, analyzed according to pulse wave signal and the one way rotating cycle to prestore, the current location of vehicle window is identified, in vehicle window
When current location is random site state, the power supply for generating anti-clip control signal control automatic lifting windows circuit is disconnected and controlled automatically
The power on of window circuit drops.Thus, it is possible to realize according to voltage signal and pulse wave signal detection during automatic lifting windows
Whether foreign object is clipped to, so as to carry out anti-pinch control.Anti-pinch detection, accurate rate are carried out using voltage signal and pulse wave signal
It is high.
In some embodiments, analyzed according to the periodicity of pulse wave signal and the one way rotating cycle to prestore,
The current location of identification vehicle window includes：The periodicity of the pulse wave signal obtained is calculated, and according to the periodicity of pulse wave signal
Obtain the real time rotation number of turns；Calculate total rotating cycle of Car window electric machine and store；Total rotating cycle seeks one way rotating cycle
Business, according to the remainder for asking business, judges the current location of vehicle window, random site status indicator is exported when remainder is more than zero, when remaining
Output top or bottom position status indicator when number is zero.Car window electric machine is recorded according to pulse wave signal thus, it is possible to realize
Rotating distance, and the real time position of vehicle window is accurately calculated according to the rotating distance of motor, recognition result is more accurate.
In some embodiments, this method further includes：The signal of identification triggering electric power window lifting window action, and according to
The signal generation automatic lifting windows control signal identified or automatic drop window control signal output, control automatic lifting windows circuit or automatic
Window circuit is dropped to connect.Automatic lifting windows or automatic drop window control, more intelligence are carried out according to the signal recognized thus, it is possible to realize
Energy.
In some embodiments, the signal of identification triggering electric power window lifting window action includes：Obtain enabling signal into
Row judges, in the state of enabling signal is starts, is judged according to inductance resistance and pulse wave signal, identification triggering electricity
The vehicle window push button signalling output of motor-car window drop window action；Or in the case where enabling signal is resting state, signal is controlled in acquisition
Or remote signal output.Thus, it is possible to realize automatically controlling for a key drop window, or according to central control system or according to remote control system
Automatically control, very intelligently.
According to another aspect of the present invention, a kind of stall control method of power windows motor is additionally provided, including：
The inductance resistance of the Car window electric machine of power windows is detected, and it is defeated into pulse wave signal according to inductance resistance metaplasia
Go out；
Judged according to inductance resistance and pulse wave signal, when stall occurs, the control signal output of generation stall,
To control power windows to stall.Thus, it is possible to whether motor is detected there occurs stall according to the inductance resistanceization of brush motor, with
Motor is protected when stall occurs for motor, detection mode is simple and testing result is more accurate.
In some embodiments, the inductance resistance of the Car window electric machine of power windows is detected, and is resisted according to the inductance
Change generation pulse wave signal output includes：The series load component on the motor of power windows, and on load component
Level-one amplifying circuit in parallel, detects the voltage signal on load component by level-one amplifying circuit and exports；Level-one is amplified into electricity
The output terminal on road is connected to second amplifying circuit, the voltage signal for the change that second amplifying circuit is exported according to level-one amplifying circuit
Generate pulse wave signal output.Using having brush rotor electric machine (i.e. motor) in energization rotary course, its Inside coil is due to turning
Son and the continuous break-make of electrode and constantly change the principle of size, the series load component in the rotation circuit of motor passes through
Voltage signal on detection load component can react the inductance resistance of Car window electric machine.And the change resisted with inductance,
Level-one amplifying circuit will export corrugated voltage signal, and carrying out two level amplifier to the corrugated voltage signal can obtain height
The pulse wave signal of low-level period change, can accurately reflect the rotation feelings of Car window electric machine by detecting pulse wave signal
Condition.Also, arteries and veins can be exported automatically according to voltage signal by accessing second amplifying circuit in the output terminal of level-one amplifying circuit
Ripple signal is rushed, is realized simply, is saved component, reduce cost.
In some embodiments, judged according to inductance resistance and pulse wave signal, when stall occurs, generation
Stall control signal exports, to control power windows stalling to include：Obtain the voltage signal and two level of level-one amplifying circuit output
The pulse wave signal of amplifying circuit output is judged, continues output voltage signal and second amplifying circuit in level-one amplifying circuit
When not exporting the pulse wave signal of mechanical periodicity, generation stall control signal control automatic lifting windows circuit or automatically drop window circuit
Power supply disconnects.Since brush motor is after stopping operating, inductance, which resists, no longer to change, therefore can only export fixed voltage letter
Number, thus impulse wave output cannot be generated according to the voltage signal of change, carried out by detectable voltage signals and pulse wave signal
Judge, it is possible to realize according to pulse wave signal detect motor stall situation, with when stall occurs by disconnecting motor pair
Motor is protected, the accuracy higher of stall detection.
Brief description of the drawings
Fig. 1 is vehicle main driving position power windows electric appliance principle schematic in the prior art；
Fig. 2 is vehicle copilot position power windows electric appliance principle schematic in the prior art；
Fig. 3 is that the modular structure of the power window clamp prevention device for not changing former vehicle circuit of an embodiment of the present invention is shown
It is intended to；
Fig. 4 schematically shows the rotation status of brush motor；
Fig. 5 schematically shows that the rotation status of the motor according to Fig. 4 carries out the circuit original of rotating cycle measurement
Reason；
Fig. 6 schematically shows the oscillogram for the pulse wave signal that the circuit theory according to Fig. 5 is formed；
Fig. 7 is a kind of circuit theory schematic diagram of embodiment of each module of power window clamp prevention device shown in Fig. 3；
Fig. 8 is realistic application conditions schematic diagram of the power window clamp prevention device shown in Fig. 7 in main driving position；
Fig. 9 is realistic application conditions schematic diagram of the power window clamp prevention device shown in Fig. 7 in co-driver；
Figure 10 is the method flow diagram of the implementation method of the power windows auto-lift or-fall window of one embodiment of the present invention；
Figure 11 carries out anti-pinch control during automatic lifting windows for one embodiment of the present invention to power windows
Method flow diagram；
Figure 12 is that the motor to vehicle window during window lifting of one embodiment of the present invention carries out stall control
Method flow diagram.
Embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
Fig. 1 and Fig. 2 schematically shows the electricity of traditional window system without auto-lift or-fall window and pinch resistant functionality
Device schematic diagram.Wherein, Fig. 1 is the vehicle main driving position power windows for not possessing in the prior art auto-lift or-fall window and pinch resistant functionality
Electrical schematic, Fig. 2 are not possess auto-lift or-fall window and the vehicle copilot position power windows electricity of pinch resistant functionality in the prior art
Device schematic diagram, the vehicle window electrical schematic of other positions (such as parking stall vehicle window and left back parking stall vehicle window behind the right side) is identical with Fig. 2, therefore not
Repetition is shown.In not possessing the system of auto-lift or-fall window and pinch resistant functionality, the master control switch 100 of main driving position passes through connector
It is connected with the drive motor 400 of vehicle window.As shown in Figure 1, for the vehicle window of main driving position, the total of main driving position vehicle window is controlled
Control switch 100 passes through two connectors (being respectively the second connector 300 of the first connector of master control 200 and master control) and main driving position
Window motor 400 be connected.Wherein, master control switch 100 includes rising window key switch A and drop window key switch B, default conditions
Under, the first contact a1 for rising window key switch A is connected with the first connector of master control 200, rises the second contact a2 of window key switch A
Be connected with anode+BAT, at the same rise window key switch A the first contact a1 and the 3rd contact a3 connect, and its 3rd touch
Point a3 is connected with battery cathode GND.Similarly, the first contact b1 for dropping window key switch B connects with the first connector of master control 200
Connect, the second contact b2 of drop window key switch B is connected with anode+BAT, while drops the first contact b1 of window key switch B
Connected with the 3rd contact b3, and its 3rd contact b3 is connected with battery cathode GND.Thus, the vehicle window of main driving position is formd
Control electrical schematic.As shown in Figure 1, in the circuit system, when user lifts a liter window key switch A, then it first is touched
Point a1 is switched to be connected with the 3rd contact a3, at this time in " anode+BAT- liter window key switch A- connectors-main driving car
Circuit is formed between window motor 400- connectors-drop window key switch B- battery cathode GND ", then main driving window motor
400 are rotated forward due to connection so that the vehicle window of main driving position rises.And work as user and stop lifting a liter window key switch A, then
Circuit disconnects, and main driving window motor 400 stops operating so that the vehicle window of main driving position stops rising.Correspondingly, when user will
Drop window key switch B press, then form reverse circuit so that main driving window motor 400 due to reversely connect and into
Row reversion, so that the vehicle window of main driving position declines.As shown in Fig. 2, in not possessing the system of auto-lift or-fall window and anti-pinch, master drives
The master control switch 100 for sailing position is connected by the switch 500 of connector and co-driver, and the window motor 600 of co-driver is then
Directly it is connected with the switch 500 of co-driver.As shown in Fig. 2, similarly, as the liter window key switch A for lifting master control switch 100
Or the liter window key switch C of copilot switch 500 is lifted, the motor 600 of the vehicle window of co-driver drives since forward direction is connected
The vehicle window of co-driver rises, and with the drop window key switch B that should press master control switch 100 or presses copilot switch 500
Window key switch D drops, then the motor 600 of the vehicle window of co-driver drives the vehicle window of co-driver to decline due to reversely connecting.
These are all the realization principle of traditional window lifting of the prior art, therefore no longer excessively repeat herein.Pass through the original of Fig. 1, Fig. 2
Reason figure and above-mentioned briefly narration are it is recognised that can only be that user lifts or presses accordingly when rising window and drop window within the system
Key switch, the vehicle window of relevant position just move, and be lift or press how long vehicle window just move how long, do not possess a key from
Dynamic elevating function, and do not possess pinch resistant functionality.
In order to be improved to traditional vehicle window circuit system, it is set to possess function of auto-lift and pinch resistant functionality, usually
Need that one sensor is installed in each car door and carry out current detecting, this mode needs the whole circuit system to vehicle window
Transformed, it is of high cost, and needs are installed and dismantle former car circuit and structure, it is very troublesome.Based on this, this application provides one kind
The power window clamp prevention device of former vehicle circuit is not changed.Wherein, Fig. 3 shows the module knot of the power window clamp prevention device
Structure.As shown in figure 3, the device includes the first connector 1, the second connector 2, the 3rd connector 3 and apparatus main body 5, first connects
Connect 1 and second connector 2 of device to connect with the 3rd connector 3 by harness respectively, apparatus main body 5 is equipped with and the 3rd connector 3
4th connector 4 of Interface Matching.Wherein, apparatus main body 5 includes control module 50, detection module 53, the first drive module
51 and second drive module 52.Detection module 53 respectively with the first drive module 51, the second drive module 52, the 4th connector 4
Be connected with control module 50, the first drive module 51 and the second drive module 52 respectively with anode+BAT, the 4th connector
4th, detection module 53 is connected with control module 50.Wherein, detection module 53 is used for detectable voltage signals and pulse wave signal exports
To control module 50, control module 50 is used to be exported to the first driving according to voltage signal and pulse wave signal generation control signal
51 or/and second drive module 52 of module.First drive module 51 is driven forward signal according to the control signal output received
Or stop being driven forward signal, to drive corresponding window motor to rotate forward or stop operating, and the second drive module 52 then basis
Control signal output is driven reverse signal or stop reverse drive signal, to drive corresponding window motor (i.e. Car window electric machine)
Invert or stop operating, so as to fulfill the liter window and drop window of vehicle window.
According to the former vehicle window circuit theory of Fig. 1 and Fig. 2 it is recognised that vehicle window circuit system includes rising window circuit and drops window
Circuit.Returned as shown in figure 3, the first connector 1, the second connector 2, the 3rd connector 3 and the 4th connector 4 connect into two articles
First connector 1, in a particular application, can be connected the first connector of master control 200 of former vehicle, by the second connector 2 by road
The second connector of master control 300 of the former vehicle of connection, thus by the device of the present embodiment and the liter window button electricity of former car circuit system
Road circuit (rising window circuit) is connected with drop window key circuit circuit (dropping window circuit).Afterwards, open when lifting or press master control
When closing 100 liter window key switch A or drop window key switch B, the device of the present embodiment is just included in the circuit of formation, i.e., with regard to shape
Into the automatic lifting windows circuit by the present apparatus and the cell communication of vehicle and automatic drop window circuit.Thus, it is possible to by this reality
Apply the voltage signal in two circuits of the detection of detection module 53 (rise window circuit and drop window circuit) of a device and according to voltage
Signal forms pulse wave signal, and voltage signal and pulse wave signal are sent to control module 50.Afterwards, control module 50 is just
It can judge it is that action, and energy are generated by which key switch of master control switch 100 according to voltage signal and pulse wave signal
Control signal is sent to the first drive module 51 or the second drive module 52 according to the switch of action, by automatic lifting windows circuit or
Automatic drop window circuit is connected with anode, so that motor (i.e. motor) forward or reverse is driven, so as to fulfill the automatic of vehicle window
Lifting.Also, during automatic lifting, voltage signal that control module 50 can also be continuously detected by detection module 53
Running position and the operating condition (such as whether it is stifled that folder occurs) of vehicle window are judged with the pulse wave signal of generation, so that according to vehicle window
Running position and operating condition generation control signal are sent to the first drive module 51 or/and the second drive module 52, so as to drive
Dynamic motor reversal stops operating, so as to fulfill vehicle window anti-pinch and be automatically stopped.
Wherein, 53 detectable voltage signals of detection module and pulse wave signal, control module 50 is according to voltage signal and pulse
Ripple signal carries out judging generation control signal, can be the Principle of Rotating using motor.Fig. 4 schematically shows that one kind has brush
The rotation on-state of rotor electric machine, Fig. 5 schematically show that the rotation on-state of the motor according to Fig. 4 is revolved
Turn-take and count the circuit theory of measurement.As shown in figure 4, by Vehicular system it is common have brush rotor electric machine exemplified by, through the present inventor
Research find, in the rotary course for having brush rotor electric machine, due to the continuous break-make of its rotor and electrode, motor is rotating to
During different position, coil of its internal access be it is continuous change size, thus cause electricity of the motor in its series circuit
Induction reactance and electric current are also constantly to change.For example, at the position of A in rotating to figure, the resistance circuit of connection is by inductance coil
L6, inductance coil L7 and inductance coil L8 connect the first resistor circuit to be formed with by inductance coil L2, inductance coil L3 and electricity
The second resistance circuit in parallel that sense coil L4 is connected into；At the position of B in rotating to figure, the resistance circuit of connection is by inductance
Coil L1, inductance coil L6, inductance coil L7 and inductance coil L8 connect the 3rd resistor circuit to be formed with by inductance coil L2,
The 4th resistance circuit that inductance coil L3, inductance coil L4 and inductance coil L5 are connected into is in parallel.It can be seen from the above that rotated in motor
During to different positions, it is different, i.e., contact point of the size that motor internal inductance resists in inductance coil that its internal inductance, which resists,
Occur once in interposition (state for scheming inductance coil L1 in A) and disconnection position (state for scheming inductance coil L1 in B)
Change.Based on this, pass through the circuit theory of Fig. 5, a load cell device R of connecting in the circuit of motor, then load cell device
Voltage on part R synchronous generating period will change with the rotation of motor, thus can be by loading in load cell
The first transport and placing device A1 in device R obtains the voltage signal of change, and generates pulse wave signal by the second transport and placing device A2 and export
To control module, with the cyclically-varying rule according to voltage signal and pulse wave signal, the rotating cycle of motor is calculated.And
Pass through the rotating cycle for calculating motor and current real-time voltage, it is possible to easily accurately judge the real time position of vehicle window with
Working order (such as whether it is stifled that folder occurs), so as to be exported according to voltage signal and pulse wave signal generation control signal to driving mould
Block, to control the lifting of vehicle window by controlling the rotation status of motor or stop lifting.Fig. 6 schematically shows what is formed
The oscillogram of pulse wave signal.The principle of motor rotational case and measuring circuit according to Fig. 4 and Fig. 5 is it is recognised that electricity
Machine its internal inductance in rotary course resists alternately to be changed between the disconnection position of inductance coil contact point and interposition, causes electricity
Current synchronization in road changes, thus the voltage loaded at load cell device R both ends connected in series also changes in alternating,
Voltage signal undulate from there through the first transport and placing device A1 outputs changes, and the voltage signal that the first transport and placing device A1 is exported
Input the second transport and placing device A2 after carrying out secondary amplifier to the second transport and placing device A2 and replace change between can exporting low and high level
Pulse wave signal, and the cycle of low and high level change is synchronous with the period of change that the internal resistance of motor resists, i.e., when some electricity
The contact point for feeling coil disconnects position and interposition change once, just produces the low and high level change of a cycle, thus can
To obtain the pulse wave signal shown in Fig. 6, and the rotating cycle of motor can be calculated according to the period of change of pulse wave signal,
The rotating distance of motor can be recorded by calculating the periodicity of square wave.
Therefore, based on above-mentioned principle, Fig. 7 schematically shows a kind of each of the power window clamp prevention device of embodiment
The circuit realization principle of module, Fig. 8 schematically show anti-pinch device shown in Fig. 7 in the application state of main driving position, Fig. 9
Schematically show application state of the anti-pinch device shown in Fig. 7 in co-driver.As shown in figs. 7-9, detection module 53 wraps
531 and second detection module 532 of first detection module is included, first detection module 531 includes the first load cell device being connected in parallel
Part R1 and the first detection circuit 5311, the second detection module 532 include the second load cell device R 2 being connected in parallel and the second inspection
Slowdown monitoring circuit 5321.Wherein, the first load cell device R 1 is connected with the first drive module 51 and the 4th connector 4 respectively, and second is negative
Component R2 is carried to connect with the second drive module 52 and the 4th connector 4 respectively, with formed respectively the first load cell device R 1 with
The main series circuit for driving Car window electric machine 400 (or the passenger side Car window electric machine 600) and the second load cell device R 2 and main window electricity of driving
The series circuit of machine 400 (or the passenger side Car window electric machine 600).Thus, it is possible to negative by the detection first of the first detection circuit 5311
Carry the voltage signal at component R1 both ends and form pulse wave signal, and it is negative to detect second by the second detection circuit 5321
Carry the voltage signal at component R2 both ends and form pulse wave signal.As shown in fig. 7, the first detection circuit 5311 is additionally coupled to control
Molding block 50, exports to control module 50 by the voltage signal detected and according to the pulse wave signal that voltage signal generates.Together
Reason, the second detection circuit 5321 are also connected to control module 50, are generated by the voltage signal detected and according to voltage signal
Pulse wave signal is exported to control module 50.Control module 50 receives voltage signal and pulse wave signal, it is possible to according to electricity
Pressure signal and/or pulse wave signal judge to be produced by which key switch (rise window key switch or drop window key switch)
Action, and the key switch generation control signal acted according to generation is exported to corresponding drive module, for example, if being to rise
Window key switch A generates lifting action, the then voltage signal that can be detected by the first detection circuit 5311 and/or pulse
It is that a liter window key switch A triggers action that ripple, which judges, then generating automatic lifting windows control signal and exporting to the first drive module 51 makes
Obtain the first drive module 51 and connect anode so as to drive motor 400 to rotate forward automatically to realize automatic lifting windows, and if dropping
Window key switch B, which is generated, presses action, then the voltage signal that can be detected by the second detection circuit 5321 and/or pulse
Ripple judges it is that drop window key switch B triggers action, then the automatic drop window control signal of generation is exported to the second drive module 52 and made
Obtain the second drive module 52 connection anode and drop window automatically so as to drive motor 400 auto-reverse to realize.Wherein, specific
It is the voltage signal and pulse wave signal or by the second detection circuit that liter window is detected by the first detection circuit 5311 in
5321 detections rise the voltage signal and pulse wave signal of window, can be configured according to user demand.Driven for convenience any
Sail position (such as the master shown in Fig. 8 drive or Fig. 9 shown in the passenger side) can realize unified detection, it is former according to the circuit of the passenger side
Reason, voltage signal and the output that the first detection circuit 5311 is arranged to detection drop window preferred in a preferred embodiment of the invention
The pulse wave signal during window is dropped, and the second detection circuit 5321 is arranged to the voltage signal of detection liter window and is exported to rise window
During pulse wave signal.Correspondingly, the first detection circuit 5311 drops window according to the voltage signal generation of the drop window detected
Motor turnning circle (i.e. drop window when motor rotational travel, counted by the periodicity of the pulse wave signal of generation),
And the motor turnning circle that the second detection circuit 5321 rises window according to the voltage signal generation of the liter window detected (rises electric during window
The rotational travel of machine, is counted by the periodicity of the pulse wave signal of generation).Wherein, specific set-up mode for example can be with
It is that it is (not shown, such as can be type to be embodied as including a first amplifier voltage checking chip by the first detection circuit 5311
Number two amplifier chips for being LM258), in physical circuit design anode is inputted by the first of the first amplifier voltage checking chip
It is connected with the first load cell device R 1 close to one end of the first drive module 51, and by the of the first amplifier voltage checking chip
One input cathode is connected with the first load cell device R 1 close to one end of the 4th connector 4.Thus, the first load cell device R 1
When being connected on the negative pole end of motor, the first detection circuit 5311 is just connected, i.e., only (is pressed in the counter-rotational circuit of motor
In the circuit for declining window key switch), such as press the circuit "+BAT-b2-b1- formed during the drop window key switch B in Fig. 8
Ja2-Ta2-Fa4-Fb4-Jd2-R2-Fb3-Fa3-Tb2-Jb2-L-H-Jb1-Tb1-Fa2-Fb2-R1-Jd1-Fb1-Fa1-
In Ta1-Ja1-a1-a3-GND ", the first amplifier voltage checking chip just can turn on and detect voltage signal.Correspondingly, can be with
It is (not shown, such as can be model that second detection circuit 5321 be arranged to include a second amplifier voltage checking chip
For two amplifier chips of LM258), in specific circuit design by the first of the second amplifier voltage checking chip the input cathode with
Second load cell device R 2 is connected close to one end of the 4th connector 4, by the first input of the second amplifier voltage checking chip
Anode is connected with the second load cell device R 2 close to one end of the second drive module 52.Thus, the second load cell device R 2 is gone here and there
When being associated in the negative pole end of motor, the second detection circuit 5321 is just connected, i.e., only (presses a liter window in the circuit that motor rotates forward
In the circuit of key switch), such as lift the circuit "+BAT-a2-a1-Ja1- formed during the liter window key switch A in Fig. 8
Ta1-Fa1-Fb1-Jd1-R1-Fb2-Fa2-Tb1-Jb1-H-L-Jb2-Tb2-Fa3-Fb3-R2-Jd2-Fb4-Fa4-Ta2-
In Ja2-b1-b3-GND ", the second amplifier voltage checking chip just can turn on and detect voltage signal.In this way, be achieved that by
The pulse wave signal of motor when first detection circuit 5311 is designed to detect the voltage signal of drop window and export drop window, and the
The pulse wave signal of motor when two detection circuits 5321 can only detect the voltage signal and output liter window of liter window.Meanwhile by first
The first order output terminal and second level output terminal of amplifier voltage checking chip are connected with control module 50 respectively, and control module 50 is just
Voltage signal during drop window can be obtained according to the output of the first order output terminal of the first amplifier voltage checking chip, and according to the
The output of the second level output terminal of one amplifier voltage checking chip obtains pulse wave signal during drop window, so as to be believed according to the voltage
Number and pulse wave signal generate corresponding control signal and export to the second drive module 52, with opening by the second drive module 52
Concern, which is changed, automatically controls drop window action.And at the same time, by the first order output terminal of the second amplifier voltage checking chip and
Two level output terminal is connected with control module 50 respectively, and control module 50 can be according to the first of the second amplifier voltage checking chip
The output of level output terminal obtains voltage signal when rising window, and according to the second level output terminal of the second amplifier voltage checking chip
Output obtains pulse wave signal when rising window, so that it is defeated to generate corresponding control signal according to the voltage signal and pulse wave signal
Go out to the first drive module 51, to be automatically controlled by the switching of the first drive module 51 to a liter window action.And
During automatic lifting windows, control module 50 can also according to voltage signal and pulse wave signal to whether anti-pinch occurring judging, with
When clipping to thing, generate anti-clip control signal while export to the first drive module 51 and the second drive module 52, with
Control Car window electric machine reversion, pinch resistant functionality during so as to fulfill automatic lifting windows.
Wherein, by control module generate control signal with export to drive module so as to fulfill automatic window for example
Can be that automatic lifting windows control unit and automatic drop window control unit (not shown), automatic lifting windows are set in the control module
Control unit is used to generate automatic lifting windows control signal, and the automatic window control unit that drops is used to generate automatic drop window control signal.Its
In, according to above-mentioned narration, generation automatic lifting windows control signal can be first according to the second amplifier voltage checking chip
The voltage signal of level output terminal output, when the first order output terminal of the second amplifier voltage checking chip detects that voltage signal exports
To control module 50 when (when pressing the key switch of liter window, for example, press in Fig. 8 and Fig. 9 master control switch 100 liter window by
When key switch A or the co-driver pressed in Fig. 9 switch 500 liter window key switch C), automatic lifting windows control unit just generates
Automatic lifting windows control signal is exported to the first drive module 51, and the first drive module 51 receives automatic lifting windows control signal
Afterwards, just drive motor to rotate forward, realize that vehicle window rises automatically.Wherein, the first drive module 51 is after forward drive signal is received
Driving motor is rotated forward to realize implementation that vehicle window rises automatically, such as can be the embodiment shown in Fig. 7~9.Specifically
For, as shown in fig. 7, the first drive module 51 includes the first relay Jd1 and the first relay drive circuit 511, wherein, first
The first contact of relay Jd1 is connected with the first load cell device R 1, and the second contact is connected with the 4th connector 4, the 3rd contact
It is connected with anode+BAT, and the first contact of the first relay Jd1 is connected with the second contact acquiescence, the first relay driving
Circuit 511 is connected with 50 and first relay Jd1 of control module respectively.When the first relay drive circuit 511 receives automatically
After the automatic lifting windows control signal for rising window control unit, the first of the first relay Jd1 is driven according to automatic lifting windows control signal
Contact is disconnected with the second contact, drives the first contact and the 3rd contacting of the first relay Jd1.Thus, just in battery just
Pole+BAT, the first relay Jd1, the first load cell device R 1, master drive motor 400, the second load cell device R 2, second driving mould
Circuit is formd between block 52, drop window key switch B and battery cathode GND, circuit driving master drives motor 400 and rotates forward, so that
Realize automatic lifting windows.Similarly, the automatic drop window control signal of generation can also be that automatic drop window control unit is receiving first
During the voltage signal of the first order output terminal output of amplifier voltage checking chip (during by the key switch for declining window, such as by
The drop window key switch B of master control switch 100 in lower Fig. 8 and Fig. 9 or press co-driver in Fig. 9 switch 500 drop window by
During key switch D), generate automatic drop window control signal and export to the second drive module, by the second drive module 52 according to automatic drop
The output of window control signal is driven reverse signal, to control motor reversal, realizes automatic drop window.The specific reality of second drive module 52
Existing mode is illustrated in figure 8 including the second relay Jd2 and the second relay drive circuit 521, and the first of the second relay Jd2
Contact is connected with the second load cell device R 2, the second contact is connected with the 4th connector 4, the 3rd contact and anode+BAT connect
Connect, and the first contact of the second relay Jd2 is connected with the second contact acquiescence, the second relay drive circuit 521 connects respectively
50 and second relay Jd2 of control module.When the second relay drive circuit 521 receives the automatic of automatic drop window control unit
After dropping window control signal, the first contact of the second relay Jd2 and the second contact is driven to disconnect according to automatic drop window control signal,
Drive the first contact and the 3rd contacting of the first relay Jd2.Thus, just in anode+BAT, the second relay
Jd2, the second load cell device R 2, master drive motor 400, the first load cell device R 1, the first relay Jd1, liter window key switch A
Circuit is formd between battery cathode GND, circuit driving master drives motor 400 and inverts, it is achieved thereby that dropping window automatically.
Preferably, in automatic window, in order to vehicle window to top or on earth when realize driving motor stalls, can
To be set in automatic lifting windows control unit to top detection components and set detection components on earth in drop window control unit automatically.
Wherein it is possible to it will be arranged to defeated according to the first order output terminal of the second amplifier voltage checking chip and the second level to top detection components
Voltage signal and pulse wave signal that outlet exports respectively identification vehicle window real-time voltage and position, and according to vehicle window real-time voltage and
Position is judged that, when vehicle window is to top, generation stops control signal and exports to the first drive module 51；It will can detect on earth
Component is arranged to the voltage exported respectively according to the first order output terminal and second level output terminal of the first amplifier voltage checking chip
Signal and pulse wave signal identification real-time voltage and real-time window locations, and judged according to vehicle window real-time voltage and position,
Vehicle window on earth when, generation stop control signal exporting to the second drive module 52.Thus, the first drive module 51 and second is driven
Dynamic model block 52 just drives motor stalls respectively when receiving stopping control signal.For example, during automatic lifting windows,
Detect that vehicle window has increased to top to top detection components, then output stops control signal to the first relay drive circuit
511, the first make contact and the 3rd contact point for driving the first relay Jd1 disconnect, and its first make contact is connect with second
Contacting, so as to disconnect the circuit of automatic lifting windows so that motor stops automatic rotating forward.During automatic drop window, processing procedure is as the same.
Wherein, vehicle window real time position is identified according to voltage signal and pulse wave signal, there can be a variety of implementations.For example, it may be
Storage unit is further included in control module 50, for recording one way rotating cycle and total rotating cycle according to pulse wave signal.
On earth detection components and to top detection components operated according to motor in real-time voltage signal judge be liter window process or drop window
Process, and one way rotating cycle and total rotating cycle are calculated to obtain real-time window locations according to pulse wave signal.Specifically can be with
It is by taking the vehicle window of main driving position as an example, such as when installing first, manually to operate the drop window button of master control switch 100 first
Vehicle window is dropped to bottommost by switch B, and the motor rotation number of turns that control module 50 records at this time is 0 circle, is defined as L0.Lift afterwards
The liter window key switch A of master control switch 100, rises to top, control module 50 records the motor rotation number of turns at this time by vehicle window
(periodicity of the pulse wave signal received is recorded, a cycle is considered as a stroke of motor, and motor is recorded with periodicity
Stroke, stroke is considered as rotating cycle), be defined as Hh, and preserve Hh as one way rotating cycle in the memory unit, together
The total rotating cycle Ln of Shi Jilu, the real-time of vehicle window is calculated by doing division arithmetic to total rotating cycle Ln and one way rotating cycle Hh
Position.For example, be integer when total rotating cycle Ln seeks one way rotating cycle Hh the result of business, and when remainder is 0, illustrate vehicle window
It has been in top or bottom, if remainder is not 0, has illustrated vehicle window not to top or bottom, but in random site.And such as
Fruit is that business's remainder is sought during liter window is 0, illustrate vehicle window be at top, if in window is dropped during ask business's remainder to be
0, it is in bottom to illustrate vehicle window.Wherein, be liter window process or drop window process can be then by the first detection circuit and second
Whether detection circuit has voltage signal and/pulse wave signal come what is judged, can refer to and describes above.It should be noted that in order to
Total rotating cycle Ln is recorded exactly, and add operation is done to rotating cycle when liter window, subtraction is done to rotating cycle when dropping window
Computing.For example, if current operation is the process for dropping window, the stroke of window drops (from starting to drop window to when stopping i.e. during drop window
Rotating cycle) be Ln1, then current total rotating cycle Ln is changed into Ln=Ln-Ln1, if current operation is the process of liter window,
The stroke of liter window is Hn1 (i.e. from liter window is started to rotating cycle when stopping during liter window), then current total rotating cycle
Ln is changed into Ln=Ln+Hn1.Wherein, it is according to pulse wave signal that control module 50, which records rotating cycle, passes through pulse wave signal
Periodicity records the stroke of motor, and the periodic waveform of pulse wave signal is referred to shown in Fig. 6.
In a particular application, it is preferable that the anti-pinch for being useful for carrying out anti-pinch control is further included in automatic lifting windows control unit
Detection components, are arranged to what is exported respectively according to the first order output terminal and second level output terminal of the second amplifier voltage checking chip
Voltage signal and pulse wave signal identification vehicle window real-time voltage and position, and judged according to vehicle window real-time voltage and position,
Detect clip to object when, generate anti-clip control signal to the first drive module and the second drive module.Storage unit is also used
According to voltage signal and pulse wave signal record vehicle window raised voltage.Anti-pinch detection components obtain the real-time electricity in motor operating
Signal is pressed, and according to vehicle window raised voltage and to top detection components to top testing result, to judge whether to clip to foreign object
Situation.Specific implementation is, in first operation, control module also record vehicle window to top with earth when voltage, and
Magnitude of voltage in vehicle window uphill process and during decline, and preserve in the memory unit, i.e., save as respectively in storage unit
Vehicle window to top voltage, vehicle window voltage, vehicle window raised voltage and vehicle window drop-out voltage on earth., will be from second during liter window
The voltage signal that first output terminal of amplifier voltage checking chip obtains is compared with vehicle window raised voltage, when voltage signal is big
In vehicle window raised voltage, and to the unidentified signal to vehicle window to top of top detection components, then illustrate to have clipped to foreign object, prevent at this time
Folder detection components generate anti-clip control signal and export to the first drive module 51 and the second drive module 52.First relay driving
Circuit 511 drives the first contact of the first relay Jd1 and the 3rd contact to disconnect according to anti-clip control signal, and makes the first contact
With the second contacting, motor 400 is set to stop rotating forward, so that vehicle window stops rising.Meanwhile second relay drive circuit
521 drive the first contact and the second contact of the second relay Jd2 to disconnect according to anti-clip control signal, and make the first contact and the
Three contactings, make motor 400 start to invert, so that vehicle window is begun to decline.Thus, it is possible to realize in automatic lifting windows process
In anti-pinch control.
Preferably, control module can also be connected with vehicle central controlled lock system and vehicle starting system, to obtain vehicle
The enabling signal and the middle control locking of vehicle central controlled lock system or unlocking signal of activation system.So as to fulfill when vehicle is not actuated
(when i.e. enabling signal is not actuated), passes through control locking or unlocking signal in reception and starts automatic lifting windows program or drop window journey automatically
Sequence.Such as can be that control module receives the enabling signal of lock signal and vehicle starting system in the middle control of central controlled lock system,
If enabling signal is resting state, locking signal generation automatic lifting windows are controlled in by automatic lifting windows control unit
Control signal is exported to the first drive module, automatic lifting windows when being locked with being controlled in realization.And it is not actuated shape in enabling signal
During state, when control module receives middle control unlocking signal, then unlocking signal generation is controlled in by dropping window control unit automatically
Automatic drop window signal is exported to the second drive module, drops window automatically when unlocking to be controlled in realization.Similarly, control module can also be made
50 are connected to vehicle remote control system, obtain the remote controlled locking or unlocking signal of vehicle remote control system, using in enabling signal not open
When dynamic, exported by automatic lifting windows control unit according to remote controlled locking signal generation automatic lifting windows control signal to the first driving mould
Block, automatic lifting windows during realizing remote controlled locking, drops window automatically by dropping window control unit automatically according to remote-control unlocking signal generation
Control signal is exported to the second drive module, and window drops in realize remote-control unlocking when automatically.Wherein, central controlled lock system and remote control are passed through
When system starts auto-lift or-fall window program, it can be defined with the number of centering control unlocking signal and remote-control unlocking signal, such as
Automatic drop window program can be started by producing unlocking signal twice or thrice, and can also produce a unlocking signal can just start
Automatic drop window program, so as to preferably meet actual demand, lifting user experience, the embodiment of the present invention is to implementing form
Do not limit.
Preferably, in order to make after anti-pinch device is mounted with, it can still realize and rise window and drop window manually, control module exists
Receive voltage signal that the first output terminal of the first amplifier voltage checking chip and the second amplifier voltage checking chip obtains and/
Or during pulse wave signal, the judgement of signal duration can be carried out, if voltage signal continue shorter a period of time (such as
Less than one second), then start automatic lifting windows and drop window function (i.e. by automatic lifting windows control unit or automatic drop window control unit
Generation automatic lifting windows control signal or automatic drop window control signal are exported to the first drive module or the second drive module), if
Signal is sustained for longer than the default short period (being greater than one second), then does not start automatic lifting windows and drop window function,
But (lift or push button manually switch to be controlled manually by the lifting of the on-off control system control vehicle window of former vehicle
System).Preferably, can be right when control module is connected to vehicle starting system, it is necessary in the case where enabling signal is starting state
Lift liter window key switch and be detected by the voltage signal or impulse wave that decline the generation of window key switch to realize automatic rise
Window is dropped, signal and remote signal are controlled in can receiving in inactive state, is realized with controlling signal and remote signal in
Auto-lift or-fall window, so as to ensure vehicle safety (for example, lock signal causes to drop window automatically in control in avoiding in driving, or in car
Button causes auto-lift or-fall window etc. when flame-out).
It should be noted that operation logic of the present apparatus in co-driver, the schematic diagram being referred to shown in Fig. 9 and above-mentioned
Description to main driving position operational process, the schematic diagram of rear parking stall is identical with co-driver, therefore no longer carries out herein detailed
Repeat, can carry out compareing application with the schematic diagram of Fig. 9 with reference to above-mentioned narration.Control module 50 in various embodiments of the present invention can be with
It is microcontroller, apparatus main body can carry shell or the function mainboard without shell, the first detection circuit and the second detection electricity
Road, can also be by using model in addition to it can apply two amplifier chips for the model LM258 being described above and realize
The four high guaily unit chip of LM224 realizes that these chips are all the applications of the prior art, are referred to its function introduction and are accordingly set
Meter, as long as the detection function of corresponding voltage signal and pulse wave signal can be realized based on present inventive concept, the present invention
In each embodiment it is without limitation.
Figure 10 is the implementation method of the control power windows auto-lift or-fall window of one embodiment of the present invention.Such as Figure 10 institutes
Show, this method includes：
Step S101：Detect the inductance resistance of Car window electric machine in the circuit of power windows.
According to the principle of Fig. 4 to 6, by the series load component in Car window electric machine, and by load component
Detection circuit in parallel come detect load component on voltage signal, so as to detect the inductance resistance in Car window electric machine.Wherein,
By taking the realization principle of the anti-pinch device shown in Fig. 7 to Fig. 9 as an example, due to including rising window circuit in vehicle window circuit and dropping window electricity
Road is, it is necessary to which series load component, i.e. the first load cell device R 1 and second load respectively in liter window circuit and drop window circuit
Component R2,1 both ends of the first load cell device R are connected in parallel on by the first detection circuit 5311, and the second detection circuit 5321 is in parallel
At 2 both ends of the second load cell device R, it is possible to while detect the Car window electric machine risen in window circuit and drop window circuit of power windows
Inductance resistance.By taking the implementation of Fig. 7 to Fig. 9 as an example, the first detection circuit 5311 is arranged in detection drop window circuit
The voltage signal at component both ends is loaded, and the second detection circuit 5321 is arranged to detect the load component risen in window circuit
The voltage signal at both ends.Wherein, the voltage signal at the first detection circuit and the second detection circuit detection load component both ends is defeated
The embodiment gone out can be realized by level-one amplifying circuit.
Step S102：Exported according to the inductance resistance metaplasia of Car window electric machine into pulse wave signal.
According to aforementioned principles, vehicle window electricity can be reacted by detecting the voltage signal at load component both ends of series connection
The inductance resistance of machine, and if the inductance resistance of Car window electric machine can be identified, you can identified according to the rotation of Car window electric machine
Rise window circuit and drop the connection situation of window circuit, and then recognize the vehicle window actuation of keys of triggering, very precisely.Due to electricity
Sensor changes, the voltage signal undulate change at load component both ends, thus the first detection circuit and the second detection is electric
Road is arranged to the output terminal of level-one amplifying circuit connecting second amplifying circuit, it becomes possible to is believed voltage by second amplifying circuit
Number it is converted into pulse wave signal output.Thus, it is possible to which drop window process is exported according to inductance resistanceization by the first detection circuit
In pulse wave signal, and by the second detection circuit according to inductance resistanceization export rise window during pulse wave signal.
Step S103：The push button signalling of triggering vehicle window action is judged according to inductance resistance and pulse wave signal.
A liter window button A is lifted it is recognised that working as according to the circuit diagram of the anti-pinch device of narration and Fig. 7 to Fig. 9 above
Either risen window circuit by decline window button B (rise window button C and drop window button D is also same) or drop window circuit and will be connected.At this time
Electricity can be detected (when rising the connection of window circuit) by the first detection circuit (when drop window circuit is connected) or the second detection circuit
Signal and pulse wave signal are pressed, thus can judge to touch according to the detection circuit for detecting voltage signal and pulse wave signal
The button of hair corresponding actions is liter window button or drop window button.
Step S104：The push button signalling generation automatic lifting windows control signal acted according to triggering vehicle window or automatic drop window control
Signal, controls the automatic lifting windows of vehicle window or drops window automatically.
When according to step S103, to judge the push button signalling that triggering vehicle window acts be liter window button, generation automatic lifting windows control
Signal output is to drive module (i.e. the first drive module in Fig. 7 to Fig. 9), to drive automatic lifting windows circuit and power on
(i.e. the contact of the first relay switch and anode+BAT are connected, and be can refer to and are described above), i.e., by above-mentioned device from
The dynamic window circuit that rises is connected, so as to control power windows to realize automatic lifting windows.If during drop window button, then the automatic drop window control of generation
Signal output processed is to drive module (i.e. the second drive module in Fig. 7 to Fig. 9), to drive automatic drop window circuit and power on
(i.e. the contact of the second relay switch and anode+BAT are connected, and be can refer to and are described above), i.e., by above-mentioned device from
Dynamic drop window circuit is connected, so as to control power windows to realize automatic drop window.
Thus, it is possible to realize the automatic lifting windows of power windows and automatic drop window, transform and realize that process is very simple, and
Accuracy of judgement.Preferably, when carrying out push button signalling judgement, in order to realize the program of original hand-operated lifting window, can set
During to judge in the voltage signal and pulse wave signal that are detected to the first detection circuit and the second detection circuit, sentence at the same time
The duration of disconnected voltage signal and the pulse number of notifying, if duration is more than preset duration (such as larger than 1 second), does not generate
Automatic lifting windows control signal or automatic drop window control signal, i.e., do not start auto-lift or-fall window process.Especially, in order to ensure user
The step of experiencing and meet actual demand, the enabling signal for obtaining vehicle starting system can also be increased, and detecting voltage
When signal and pulse wave signal, enabling signal is judged, if enabling signal is starting state, just start automatic lifting windows and
Automatic drop window program.
Due to being easy to trigger security risk due to clipping to foreign object during automatic lifting windows, it is therefore necessary to automatic
Progress anti-pinch detects and controls during rising window.Figure 11 show one embodiment of the present invention during automatic lifting windows
Anti-pinch protection method.As shown in figure 11, this method includes：
Step S111：Detect the inductance resistance of Car window electric machine in the circuit of power windows.
According to the principle of Fig. 4 to 6, by the series load component in Car window electric machine, and by load component
Detection circuit in parallel come detect load component on voltage signal, so as to detect the inductance resistance in Car window electric machine.Wherein,
By taking the realization principle of the anti-pinch device shown in Fig. 7 to Fig. 9 as an example, due to including rising window circuit in vehicle window circuit and dropping window electricity
Road is, it is necessary to which series load component, i.e. the first load cell device R 1 and second load respectively in liter window circuit and drop window circuit
Component R2,1 both ends of the first load cell device R are connected in parallel on by the first detection circuit 5311, and the second detection circuit 5321 is in parallel
At 2 both ends of the second load cell device R, it is possible to while detect the Car window electric machine risen in window circuit and drop window circuit of power windows
Inductance resistance.By taking the implementation of Fig. 7 to Fig. 9 as an example, the first detection circuit is arranged to the load in detection drop window circuit
The voltage signal at component both ends, and the load component both ends the second detection circuit 5321 being arranged in detection liter window circuit
Voltage signal.Wherein, the voltage signal output at the first detection circuit and the second detection circuit detection load component both ends can
To be realized by level-one amplifying circuit.According to the circuit diagram of Fig. 7 to Fig. 9 it is recognised that by triggering vehicle window button
And what is formed rises window circuit and drop window circuit or in the automatic lifting windows circuit and automatic drop window circuit of startup, corresponding load cell
Device is all connected with Car window electric machine, i.e., can monitor Car window electric machine by detecting the voltage signal at load component both ends
Inductance resistance.
Step S112：Exported according to the inductance resistance metaplasia of Car window electric machine into pulse wave signal.
According to aforementioned principles, vehicle window electricity can be reacted by detecting the voltage signal at load component both ends of series connection
The inductance resistance of machine, and if when can calculate inductance resistance Car window electric machine rotational travel, you can according to Car window electric machine
Stroke carry out window locations identification, very precisely.Due to changing with inductor, the voltage signal at load component both ends is in
Waveform changes, thus the first detection circuit is arranged to the second detection circuit the output terminal of level-one amplifying circuit is connected two
Level amplifying circuit, it becomes possible to voltage signal is converted into by pulse wave signal by second amplifying circuit and is exported.Thus, it is possible to logical
Cross the first detection circuit according to inductance resistanceization export drop window during pulse wave signal, and by the second detection circuit according to
The output of inductance resistanceization rises the pulse wave signal during window.
Step S113：Judge whether to clip to foreign object according to inductance resistance and pulse wave signal.
It is recognised that can be easily according to the cycle of pulse wave signal according to the oscillogram of foregoing pulse wave signal
Number calculates the stroke of Car window electric machine.In initialization, during record vehicle window rises to top by bottom, the impulse wave week of generation
Issue, and by its it is pre- save as one way rotating cycle, and record vehicle window reach top and bottom when voltage signal values, prestored
For to top voltage and voltage, and total rotating cycle of Car window electric machine is initialized as zero and (can refer to initialization section above on earth
Narration).Afterwards, during vehicle window raising and lowering, current lifting process is obtained according to the impulse wave periodicity of generation
The stroke that middle Car window electric machine is passed by, that is, be recorded as the real time rotation number of turns, and during liter window, total rotating cycle is recorded as always
Rotating cycle=total rotating cycle+real time rotation number of turns, during window is dropped, total rotating cycle is recorded as by total rotating cycle
=total rotating cycle-real time rotation number of turns.New total rotating cycle has been calculated every time, is required for storing total rotating cycle, with
Just the value of whole total rotating cycle is precisely recorded.Thus, it is possible to the real time position of power windows is identified according to total rotating cycle.
Specifically, since total rotating cycle is initialized as zero, power windows position is bottommost at this time, and one way rotating cycle is pre-
First store, then by calculating total rotating cycle, and by total rotating cycle/one way rotating cycle, the remainder for asking business is judged
It is known that power windows is in top, bottom or in random site.Thus, judging current vehicle window in automatic
When during liter window, it is possible to the real time position of vehicle window is identified according to the pulse wave signal of generation, i.e., by calculating impulse wave
The periodicity of signal obtains the real time rotation number of turns, and then total rotating cycle is calculated, then total rotating cycle rotates one way
The number of turns asks business, if remainder is zero, illustrates that vehicle window has risen to top or in bottommost, if remainder is not zero, illustrates car
Window is in random site.At this time, then by the way that the voltage signal of acquisition is judged with prestoring to top voltage, if voltage
Signal is greater than or equal to the value to top voltage, and it is in random order to calculate the real time position of vehicle window according to pulse wave signal
Put, then illustrate that vehicle window has clipped to foreign object.In a preferred embodiment, in order to reduce calculation amount, preferably first whether voltage signal is judged
More than to top magnitude of voltage, when more than to top magnitude of voltage, the real time position of vehicle window is just calculated.
Wherein, judge current vehicle window whether be in automatic lifting windows during method can first determine whether the second inspection
Whether slowdown monitoring circuit detects voltage signal, if detected, illustrates in the process for rising window.At this time, then detect whether to generate
Automatic lifting windows control signal (such as whether the identifier of automatic lifting windows control signal is " 1 ", illustrates to be in automatic lifting windows for " 1 "
During control or other modes), if generating automatic lifting windows control signal, illustrate export automatic lifting windows
During, anti-pinch detection is just carried out at this time, that is, carries out the judgement and position identification of voltage signal.
Step S114：According to judging result, when clipping to foreign object, anti-clip control signal control vehicle window reversion is generated.
When judging that vehicle window is clipping to foreign object during automatic lifting windows according to step S113, anti-pinch control letter is generated at this time
Number output to drive module (i.e. the first drive module and the second drive module in Fig. 7 to Fig. 9), to drive the electricity of automatic lifting windows
Road disconnects (i.e. the contact of the first relay switch is disconnected with anode+BAT, be can refer to and is described above), so as to control electronic
Vehicle window, which is realized, stops automatic lifting windows, and the circuit of the automatic drop window of driving at the same time connects (the i.e. contact of the second relay switch and electricity
Pond cathode+BAT is connected, and be can refer to and is described above), so as to control power windows to realize automatic drop window.Thus, it is possible to which detection is certainly
Foreign object whether is clipped to during dynamic liter window, and when clipping to foreign object, driving Car window electric machine reversion, so as to discharge foreign object, is protected
Vehicle window and motor are protected, and improves security.
Preferably, according to the narration of step S113 it is recognised that calculating vehicle window by voltage signal and pulse wave signal
Real time position and magnitude of voltage, can be used for judging whether to judge whether on earth to top, during window is dropped during liter window,
So as to which basis is to top signal and signal is stalled on earth during automatic lifting windows and automatic drop window.
It is further possible to the Principle of Rotating based on brush motor, is judged by voltage signal and pulse wave signal
Whether motor occurs stall during automatic lifting windows and automatic drop window, so that when stall occurs for motor, disconnects car at the first time
The power supply (being disconnected with the anode+BAT of vehicle) of window motor, protects motor.Figure 12 is implemented for the present invention is a kind of
The rotation-clogging protection method of the motor during window lifting of mode.As shown in figure 12, this method includes：
Step S121：Detect the inductance resistance of Car window electric machine in the circuit of power windows.
According to the principle of Fig. 4 to 6, by the series load component in Car window electric machine, and by load component
Detection circuit in parallel come detect load component on voltage signal, so as to detect the inductance resistance in Car window electric machine.Wherein,
By taking the realization principle of the anti-pinch device shown in Fig. 7 to Fig. 9 as an example, due to including rising window circuit in vehicle window circuit and dropping window electricity
Road is, it is necessary to which series load component, i.e. the first load cell device R 1 and second load respectively in liter window circuit and drop window circuit
Component R2,1 both ends of the first load cell device R are connected in parallel on by the first detection circuit 5311, and the second detection circuit 5321 is in parallel
At 2 both ends of the second load cell device R, it is possible to while detect the Car window electric machine risen in window circuit and drop window circuit of power windows
Inductance resistance.By taking the implementation of Fig. 7 to Fig. 9 as an example, the first detection circuit is arranged to the load in detection drop window circuit
The voltage signal at component both ends, and the load component both ends the second detection circuit 5321 being arranged in detection liter window circuit
Voltage signal.Wherein, the voltage signal output at the first detection circuit and the second detection circuit detection load component both ends can
To be realized by level-one amplifying circuit.
Step S122：Exported according to the inductance resistance metaplasia of Car window electric machine into pulse wave signal.
According to aforementioned principles, vehicle window electricity can be reacted by detecting the voltage signal at load component both ends of series connection
The inductance resistance of machine, and if Car window electric machine in normal rotation, inductance resist it is necessarily changed, and occur stall
When, it is constant that inductance, which resists, you can carries out stall identification according to the inductance resistanceization of Car window electric machine, very precisely.Due to
Inductor changes, the voltage signal undulate change at load component both ends, thus the first detection circuit and second are detected
Circuit is arranged to the output terminal of level-one amplifying circuit connecting second amplifying circuit, it becomes possible to by second amplifying circuit by voltage
Signal is converted into pulse wave signal output.Thus, it is possible to which drop window mistake is exported according to inductance resistanceization by the first detection circuit
Pulse wave signal in journey, and the pulse wave signal risen during window is exported according to inductance resistanceization by the second detection circuit.
Step S123：Judge whether Car window electric machine occurs stall according to inductance resistance and pulse wave signal.
During since stall occurs, the inductance of motor resists constant, then the voltage signal of level-one amplifying circuit output is constant, accordingly
Ground second amplifying circuit can not just export the pulse wave signal of low and high level mechanical periodicity.Thus pass through detection during liter window
The second amplifying circuit of second detection circuit whether exports pulse wave signal it may determine that whether Car window electric machine occurs stall, phase
Answer ground can be sentenced in drop window overshoot by the way that whether the second amplifying circuit of the first detection circuit of detection exports pulse wave signal
Whether disconnected Car window electric machine occurs stall, i.e., when second amplifying circuit does not export pulse wave signal, it is stifled to judge that Car window electric machine occurs
Turn.In order to more accurately judge whether to occur stall, it is necessary to judge at the same time voltage signal and pulse wave signal, the side of judgement
Method is the stable voltage signal of detection level-one amplifying circuit output, and second amplifying circuit does not export the pulse of mechanical periodicity at the same time
Ripple signal, then illustrate that motor can be by the situation of stall and the of short duration triggering car of user there occurs stall, such judgment mode
Window button is distinguished with starting the situation of auto-lift or-fall window program so that the result of stall detection is more accurate.
Step S124：According to the judging result of step S123, stall control is generated when judging that stall occurs for Car window electric machine
Signal output, to control Car window electric machine to be stopped.
When judging that stall occurs for triggering Car window electric machine according to step S123, generation stall control signal is exported to driving mould
Block (when rising window, the first drive module in exporting to Fig. 7 to Fig. 9, when dropping window, the second driving in exporting to Fig. 7 to Fig. 9
Module), to drive the circuit of Car window electric machine to disconnect (the i.e. contact of the first relay switch and anode+BAT disconnections or second
The contact of relay switch is disconnected with anode+BAT, be can refer to and is described above), so as to control the Car window electric machine of power windows
Stop motion is realized, to be protected to Car window electric machine.Judge that motor whether by way of stall, leads to compared to curtage
Cross and whether export impulse wave and judge whether motor rotates, stall testing result is more accurate.
Preferably, outside the mode that the automatic lifting windows of vehicle window and automatic drop window program trigger except through above-mentioned vehicle window button,
It can also be controlled by the central control system and remote control system of vehicle, can refer to describe above at this time, it is no longer superfluous in detail herein
State.
Power window clamp prevention device and method provided in an embodiment of the present invention can either realize the rotation-clogging protection of motor, a key
Auto-lift or-fall window, middle control auto-lift or-fall window and remote control automatic lifting window, can also realize hand-operated lifting window, and in automatic lifting windows
During there is pinch resistant functionality, it is very intelligent.Moreover, the installation of the present apparatus need not change the circuit structure of former car, less
Need to be installed in each door and window, be only used in main driving position and one device is installed, you can realize the automation of full car vehicle window
Control and anti-pinch control, it is very convenient, it is cost-effective.Meanwhile the embodiment of the present invention is sentenced by voltage signal and pulse wave signal
Disconnected window locations, and judge whether to occur to press from both sides thing or stall according to magnitude of voltage and window locations, the rotation based on brush motor is former
Reason, accuracy higher.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.
Claims (5)
1. the anti-clip control method of power windows, it is characterised in that including：
Detect the inductance resistance of the Car window electric machine of power windows；
Exported according to the inductance resistance metaplasia into pulse wave signal；
Judged according to the inductance resistance and pulse wave signal, when occurring to press from both sides thing, generate anti-clip control signal output,
To control power windows to invert；
Wherein, the inductance resistance of the Car window electric machine of the detection power windows includes：
The series load component on the motor of power windows, and the level-one amplifying circuit in parallel on the load component, lead to
Cross the voltage signal output on the level-one amplifying circuit detection load component；
It is described to be included according to the inductance resistance metaplasia into pulse wave signal output：
The output terminal of the level-one amplifying circuit is connected to second amplifying circuit, the second amplifying circuit is according to the level-one
The voltage signal generation pulse wave signal output of the change of amplifying circuit output；
It is described to be judged according to the inductance resistance and pulse wave signal, when occurring to press from both sides thing, generate anti-clip control signal
Output, to control power windows reversion to include：
Initialized, obtain one way rotating cycle and prestore to top voltage；
Voltage signal is obtained by the output terminal of the level-one amplifying circuit, and is obtained by the output terminal of the second amplifying circuit
Take pulse wave signal；
Judge whether power windows is automatic lifting windows process according to the voltage signal and/or pulse wave signal, risen when to be automatic
During window process,
The voltage signal of acquisition is matched with prestoring to top voltage, when voltage signal is more than prestoring to top voltage,
Analyzed according to pulse wave signal and the one way rotating cycle to prestore, identify the current location of vehicle window,
When the current location of vehicle window is random site state, the power supply for generating anti-clip control signal control automatic lifting windows circuit breaks
Open and control the power on of automatic drop window circuit.
It is 2. described to be carried out according to pulse wave signal and the one way rotating cycle to prestore according to the method described in claim 1, wherein
Analysis, identifying the current location of vehicle window includes：
The periodicity of the pulse wave signal obtained is calculated, and the real time rotation number of turns is obtained according to the periodicity of pulse wave signal；
Calculate total rotating cycle of Car window electric machine and store；
Total rotating cycle is asked into business to one way rotating cycle, according to the remainder for asking business, the current location of vehicle window is judged, when remainder is big
Random site status indicator is exported when zero, output top or bottom position status indicator when remainder is zero.
3. method according to claim 1 or 2, it is characterised in that further include：
The signal of identification triggering electric power window lifting window action, and control letter according to the signal generation automatic lifting windows identified
Number or automatic drop window control signal output, control automatic lifting windows circuit or automatic drop window circuit to connect.
4. the according to the method described in claim 3, it is characterized in that, signal of the identification triggering electric power window lifting window action
Including：
Enabling signal is obtained to be judged,
- in the state of enabling signal is starts, judged according to the inductance resistance and pulse wave signal, identification triggering
The vehicle window push button signalling output of electric power window lifting window action；Or
- signal or remote signal output are controlled in the case where enabling signal is resting state, in acquisition.
5. the stall control method of power windows motor, it is characterised in that including：
The inductance resistance of the Car window electric machine of power windows is detected, and it is defeated into pulse wave signal according to the inductance resistance metaplasia
Go out；
Judged according to the inductance resistance and pulse wave signal, when stall occurs, the control signal output of generation stall,
To control power windows to stall；
Wherein, the inductance resistance of the Car window electric machine of the detection power windows, and according to the inductance resistance metaplasia into pulse
Ripple signal output includes：
The series load component on the motor of power windows, and the level-one amplifying circuit in parallel on the load component, lead to
Cross the voltage signal output on the level-one amplifying circuit detection load component；
The output terminal of the level-one amplifying circuit is connected to second amplifying circuit, the second amplifying circuit is according to the level-one
The voltage signal generation pulse wave signal output of the change of amplifying circuit output；
It is described to be judged according to the inductance resistance and pulse wave signal, when stall occurs, generate stall control signal
Output, to control power windows stalling to include：
Obtain the voltage signal of the level-one amplifying circuit output and the pulse wave signal of second amplifying circuit output carries out
Judge, continue output voltage signal in the level-one amplifying circuit and the second amplifying circuit does not export the pulse of mechanical periodicity
During ripple signal, the power supply of generation stall control signal control automatic lifting windows circuit or automatic drop window circuit disconnects.
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| CN201611199865.0A CN106703583B (en) | 2016-12-22 | 2016-12-22 | The anti-clip control method of power windows and its stall control method of motor |
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| CN114482767B (en) * | 2021-12-24 | 2024-03-08 | 苏州琪埔维半导体有限公司 | Anti-pinch force detection method and system for ripple anti-pinch car window |
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