CN205484717U - Pulse detection-based direct current motor operation detection circuit and automobile window lifter circuit - Google Patents
Pulse detection-based direct current motor operation detection circuit and automobile window lifter circuit Download PDFInfo
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- CN205484717U CN205484717U CN201620016945.7U CN201620016945U CN205484717U CN 205484717 U CN205484717 U CN 205484717U CN 201620016945 U CN201620016945 U CN 201620016945U CN 205484717 U CN205484717 U CN 205484717U
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- 238000010168 coupling process Methods 0.000 claims description 8
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Abstract
The utility model provides a direct current motor operation detection circuitry based on pulse detection, this circuit connection is between direct current motor and singlechip, it includes transformer module, low pass filter module, RC integrating circuit module and the comparison circuit module that connects gradually, the transformer primary winding of this transformer module inserts in the circuit of direct current motor, its secondary winding links to each other with low pass filter module, the number of pounding of this secondary winding is greater than primary winding, this comparison circuit exports to the singlechip after the electric current integer of sampling; then, the utility model also provides an automobile window lifter circuit, including singlechip, motor drive circuit and foretell direct current motor operation detection circuitry based on pulse detection. The utility model discloses utilized permanent magnet direct current motor current can produce the signal characteristics of cross distortion sinusoidal wave when the operation commutation, designed the direct current motor operation detection circuitry based on pulse detection, realized the accurate judgement and the lock car of window lifter motor running state and rise the window control.
Description
Technical field
This utility model relates to a kind of direct current generator based on pulse detection operating testing circuit and automobile rises window device circuit.
Background technology
The operating current rising window device motor is usually 4 to 7A, and be that electric current can increase to more than 10A when there is stall, so traditional window detection that rises is all to use electric current testing based on this current values scope to judge whether glass pane arrives a make position, its specific practice is: the locked rotor current arranging motor is 8A, rise window device motor electric current under normal operation and be about 5A, obtain the operating current of motor in real time, by the operating current obtained in real time is made comparisons with the locked rotor current preset, it may determine that whether motor is because glass pane puts make position in place and stall occurs.
But, above-mentioned electric current testing is likely to be due to following several situation and affects the accuracy that detection judges: 1) during automobile battery voltage deficiency, locked rotor current can be the least, it is possible to does not reaches default decision threshold；2) the power supply core sectional area of automobile is less, and locked rotor current produces and consumes on bigger line, it is possible to do not reach default decision threshold；3) the aging of motor influences whether stall operating current size, does not likely reach default decision threshold when locked rotor current diminishes, and exceedes decision threshold the most in advance when locked rotor current becomes big, makes vehicle window stop in advance rising；4) situation such as the deformation of car door, also can lift vehicle window and form bigger resistance, be likely to be due to deformation resistance and cause motor that stall occurs in advance, makes vehicle window stop in advance rising；Such as the problems referred to above are that electric current testing cannot be avoided and solve, so needing a kind of novel liter window motor rotation detection scheme badly.
Utility model content
Based on problem mentioned in background technology, the utility model proposes a kind of direct current generator based on pulse detection operating testing circuit and automobile rises window device circuit, purpose is that realizing that with car locking, the accurately judgement of liter window device machine operating condition is risen window controls, and its concrete technology contents is as follows:
A kind of direct current generator based on pulse detection operating testing circuit, this circuit is connected between direct current generator and single-chip microcomputer, it includes transformer module, low-pass filtering module, RC integrating circuit module and the comparison circuit module being sequentially connected with, the simple winding of transformator of this transformer module accesses in the middle of the circuit of direct current generator, its secondary windings is connected with low-pass filtering module, the number of turn of this secondary windings is more than simple winding, and this comparison circuit exports to single-chip microcomputer after the electric current integer of sampling.
In the middle of one or more embodiments of the present utility model, also include the coupling inductance module being connected between direct current generator and single-chip microcomputer, this coupling inductance module includes the first inductance being series in direct current generator circuit, and the second inductance of connection single-chip microcomputer, by magnetic core loop coupling between this first inductance and second inductance.
A kind of automobile rises window device circuit, including single-chip microcomputer, motor-drive circuit and above-mentioned direct current generator based on pulse detection operating testing circuit.
In the middle of one or more embodiments of the present utility model, described single-chip microcomputer uses model to be the singlechip chip of STM8S103F3P6, it is at least provided with for before left front, left back, the right and detection input of right vehicle rear window motor and control output end, and it being provided with the some triggering inputs for triggering single-chip microcomputer action, this triggering input includes that service brake triggers input, shuts triggering input, unblank triggering input and ACCin triggering input.
In the middle of one or more embodiments of the present utility model, described motor-drive circuit include driving chip that model is ULN2003 series, the most corresponding left front, left back, right before and right vehicle rear window motor some relay switchs, and drive the transformation amplifying circuit of Car window electric machine.
In the middle of one or more embodiments of the present utility model, described transformation amplifying circuit includes high frequency transformer, this is connected to the multiple power levels amplifying circuit between high frequency transformer and Car window electric machine circuit, and this multiple power levels amplifying circuit at least includes first order amplifying circuit and the second level amplifying circuit that operational amplifier is core.
In the middle of one or more embodiments of the present utility model, a toggle switch module it is additionally provided with between control output end and the driving chip of described single-chip microcomputer, this toggle switch module at least includes 4 dial-up terminals, the outfan of those dial-up terminals connects the control output end of this single-chip microcomputer correspondence front and right vehicle rear window motor left front, left back, right respectively, the input of those dial-up terminals is commonly connected to the switching control end of single-chip microcomputer, for realizing the sequential control to each Car window electric machine.
This utility model is compared with prior art, its advantageous exists: make use of permanent magnet DC motor when running commutation, electric current can produce the signal characteristic that intermodulation distortion is sinusoidal wave, devise direct current generator based on pulse detection operating testing circuit, solve different model, situation motor, the current detecting problem of different automobile types load resistance, it is achieved the accurate judgement to liter window device machine operating condition.
Accompanying drawing explanation
Fig. 1 is the theory diagram of direct current generator based on pulse detection of the present utility model operating testing circuit.
Fig. 2 is the schematic diagram that automobile of the present utility model rises window device circuit.
Fig. 3 is each schematic diagram triggering signal input circuit that automobile of the present utility model rises window device.
Fig. 4 is the sine waveform figure of intermodulation distortion during direct current generator current commutation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the application scheme is further described:
As shown in Figure 1, a kind of direct current generator based on pulse detection operating testing circuit, this circuit 1 is connected between direct current generator 2 and single-chip microcomputer 3, it includes transformer module 11, low-pass filtering module 12, RC integrating circuit module 13 and the comparison circuit module 14 being sequentially connected with, the simple winding of transformator of this transformer module 11 accesses in the middle of the circuit of direct current generator 2, its secondary windings is connected with low-pass filtering module 12, the number of turn of this secondary windings is more than simple winding, and this comparison circuit 14 exports after the electric current integer of sampling to single-chip microcomputer 3.
Described direct current generator operating testing circuit 1 also includes the coupling inductance module 15 being connected between direct current generator 2 and single-chip microcomputer 3, this coupling inductance module 15 includes the first inductance 151 being series in direct current generator 2 circuit, and the second inductance 152 of connection single-chip microcomputer 3, coupled by magnetic core ring 153 between this first inductance 151 with the second inductance 152.
As shown in Figures 2 and 3, a kind of automobile rises window device circuit, including single-chip microcomputer 3, motor-drive circuit 4 and above-mentioned direct current generator based on pulse detection operating testing circuit 1.
The singlechip chip that described single-chip microcomputer 3 uses model to be STM8S103F3P6, it is at least provided with for before left front, left back, the right and detection input of right vehicle rear window motor and control output end, and it being provided with the some triggering inputs for triggering single-chip microcomputer action, this triggering input includes that service brake triggers input, shuts triggering input, unblank triggering input and ACCin triggering input.
Described motor-drive circuit 4 include driving chip 41 that model is ULN2003 series, the most corresponding left front, left back, right before and right vehicle rear window motor some relay switchs 42, and drive the transformation amplifying circuit 43 of Car window electric machine.
Described transformation amplifying circuit 43 includes high frequency transformer T1, this is connected to the multiple power levels amplifying circuit between high frequency transformer T1 and Car window electric machine circuit, and this multiple power levels amplifying circuit at least includes first order amplifying circuit and the second level amplifying circuit that operational amplifier U5A, U5B are core.
A toggle switch module 44 it is additionally provided with between control output end and the driving chip of described single-chip microcomputer 3, this toggle switch module 44 at least includes 4 dial-up terminals, the outfan of those dial-up terminals connects the control output end of this single-chip microcomputer correspondence front and right vehicle rear window motor left front, left back, right respectively, the input of those dial-up terminals is commonly connected to the switching control end of single-chip microcomputer 3, for realizing the sequential control to each Car window electric machine.
Single-chip microcomputer 3 of the present utility model also can arrange the control output end for vehicle dormer window, accordingly, described motor-drive circuit 4 is provided with the relay switch 42 in skylight, and the transformation amplifying circuit 43 of driving skylight motor, and toggle switch module 44 is provided with the dial-up terminal that correspond to skylight.
As shown in Figure 4, when there is current commutation in direct current generator running, electric current can produce the sine wave of intermodulation distortion, and motor speed is the fastest, and sinusoidal wave frequency is the fastest；Electric current is the biggest, sinusoidal wave wave amplitude is the biggest, rather than directly judge the size of electric current, the current characteristics utilizing this direct current generator can avoid the factor impacts on current sample such as motor ages, power supply core sectional area are less, solve different model, situation motor, the current detecting problem of different automobile types load resistance, it is achieved the accurate judgement to liter window device machine operating condition.
Above-mentioned preferred implementation should be regarded as the illustration of the application scheme embodiment, and all, approximations identical with the application scheme or the technology made based on this are deduced, replaced, improvement etc., are regarded as the protection domain of this patent.
Claims (7)
1. direct current generator based on a pulse detection operating testing circuit, this circuit is connected between direct current generator and single-chip microcomputer, it is characterized in that: include transformer module, low-pass filtering module, RC integrating circuit module and the comparison circuit module being sequentially connected with, the simple winding of transformator of this transformer module accesses in the middle of the circuit of direct current generator, its secondary windings is connected with low-pass filtering module, the number of turn of this secondary windings is more than simple winding, and this comparison circuit exports to single-chip microcomputer after the electric current integer of sampling.
Direct current generator based on pulse detection the most according to claim 1 operating testing circuit, it is characterized in that: also include the coupling inductance module being connected between direct current generator and single-chip microcomputer, this coupling inductance module includes the first inductance being series in direct current generator circuit, and the second inductance of connection single-chip microcomputer, by magnetic core loop coupling between this first inductance and second inductance.
3. an automobile rises window device circuit, it is characterised in that: include single-chip microcomputer, motor-drive circuit and direct current generator based on pulse detection operating testing circuit as claimed in claim 1 or 2.
Automobile the most according to claim 3 rises window device circuit, it is characterized in that: described single-chip microcomputer uses model to be the singlechip chip of STM8S103F3P6, it is at least provided with for before left front, left back, the right and detection input of right vehicle rear window motor and control output end, and it being provided with the some triggering inputs for triggering single-chip microcomputer action, this triggering input includes that service brake triggers input, shuts triggering input, unblank triggering input and ACCin triggering input.
Automobile the most according to claim 3 rises window device circuit, it is characterized in that: described motor-drive circuit include driving chip that model is ULN2003 series, the most corresponding left front, left back, right before and right vehicle rear window motor some relay switchs, and drive the transformation amplifying circuit of Car window electric machine.
Automobile the most according to claim 5 rises window device circuit, it is characterized in that: described transformation amplifying circuit includes high frequency transformer, this is connected to the multiple power levels amplifying circuit between high frequency transformer and Car window electric machine circuit, and this multiple power levels amplifying circuit at least includes first order amplifying circuit and the second level amplifying circuit that operational amplifier is core.
Automobile the most according to claim 5 rises window device circuit, it is characterized in that: between control output end and the driving chip of described single-chip microcomputer, be additionally provided with a toggle switch module, this toggle switch module at least includes 4 dial-up terminals, the outfan of those dial-up terminals connects the control output end of this single-chip microcomputer correspondence front and right vehicle rear window motor left front, left back, right respectively, the input of those dial-up terminals is commonly connected to the switching control end of single-chip microcomputer, for realizing the sequential control to each Car window electric machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620016945.7U CN205484717U (en) | 2016-01-07 | 2016-01-07 | Pulse detection-based direct current motor operation detection circuit and automobile window lifter circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620016945.7U CN205484717U (en) | 2016-01-07 | 2016-01-07 | Pulse detection-based direct current motor operation detection circuit and automobile window lifter circuit |
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| CN205484717U true CN205484717U (en) | 2016-08-17 |
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| CN201620016945.7U Expired - Fee Related CN205484717U (en) | 2016-01-07 | 2016-01-07 | Pulse detection-based direct current motor operation detection circuit and automobile window lifter circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101808A (en) * | 2019-12-12 | 2020-05-05 | 深圳南方德尔汽车电子有限公司 | Automatic window falling control method of electric vehicle window and anti-EMI (electro-magnetic interference) topological circuit thereof |
| CN112595971A (en) * | 2020-10-15 | 2021-04-02 | 浙江仕优驱动科技有限公司 | Locked rotor detection method and controller of direct current brush motor based on FFT technology |
-
2016
- 2016-01-07 CN CN201620016945.7U patent/CN205484717U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101808A (en) * | 2019-12-12 | 2020-05-05 | 深圳南方德尔汽车电子有限公司 | Automatic window falling control method of electric vehicle window and anti-EMI (electro-magnetic interference) topological circuit thereof |
| CN111101808B (en) * | 2019-12-12 | 2022-03-15 | 深圳南方德尔汽车电子有限公司 | Automatic window falling control method of electric vehicle window and anti-EMI (electro-magnetic interference) topological circuit thereof |
| CN112595971A (en) * | 2020-10-15 | 2021-04-02 | 浙江仕优驱动科技有限公司 | Locked rotor detection method and controller of direct current brush motor based on FFT technology |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20180107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |