CN206358118U - A kind of control system for windscreen wiper based on permanent-magnet brushless DC electric machine - Google Patents
A kind of control system for windscreen wiper based on permanent-magnet brushless DC electric machine Download PDFInfo
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- CN206358118U CN206358118U CN201621325967.8U CN201621325967U CN206358118U CN 206358118 U CN206358118 U CN 206358118U CN 201621325967 U CN201621325967 U CN 201621325967U CN 206358118 U CN206358118 U CN 206358118U
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- electric machine
- windscreen wiper
- magnet brushless
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Abstract
The utility model provides a kind of control system for windscreen wiper based on permanent-magnet brushless DC electric machine, including rain sensor, analog-to-digital conversion module, single-chip microcomputer, isolation drive module, inversion module, permanent-magnet brushless DC electric machine, current detecting and protection module and rotor-position detection module, this external system also includes switching switch, protection module, display module and Keysheet module, control system for windscreen wiper described in the utility model, its advantage can be achieved on the intelligent control of wiper, i.e. under automatic operation mode, windscreen wiper can be realized automatic start-stop according to the size of rainfall on windshield and the swing of friction speed is realized in the way of stepless speed regulation, in addition traditional brushed DC motor is replaced to drag wiper using permanent-magnet brushless DC electric machine, solve the brush wear that brush-commutated device structure is brought, electromagnetic interference, voltage in the course of work, temperature, a series of problems, such as rotary speed unstabilization is determined, effectively extend the life-span of motor.
Description
Technical field
The utility model is related to field of electrical control, and in particular to a kind of wiper control based on permanent-magnet brushless DC electric machine
System processed.
Background technology
Traditional wiper needs user manually operated, and driver needs frequently to control rain according to rainfall change in startup procedure
The swing speed scraped, it is impossible to be absorbed in and drive, notice easily disperseed, thus there is hidden trouble of traffic, intelligent control wiper can be with
Switch for user's selection between automatic work and manual work both of which and use, automatic operation mode rains wiper can basis
Amount size automatically adjusts the speed of swing speed, improves the safety coefficient of driving, traditional brushed DC motor have torque it is big,
The series of advantages such as speed-regulating range width, but the structure of brush-commutator causes brushed DC motor to there is brush wear, and electromagnetism is done
Disturb, a series of problems, such as voltage, temperature, rotary speed unstabilization are determined in the course of work, wiper described in the utility model using permanent magnetism without
Brushless motor drag, as a result of the advantage of electronic commutator structure, not only inheriting tradition direct current generator, also make it is above-mentioned go out
Existing the problem of, is addressed, and effectively extends the life-span of motor.
The content of the invention
To achieve these goals, the utility model provides a kind of wiper control based on permanent-magnet brushless DC electric machine
System, including for detecting the rain sensor of rainfall size on windshield, rain sensor is connected by analog-to-digital conversion module
The input of single-chip microcomputer is connect, single-chip microcomputer output passes sequentially through isolation drive module and inversion module connection permanent magnet brushless dc
Machine, the feedback that permanent-magnet brushless DC electric machine connects single-chip microcomputer through current detecting protection module and rotor-position detection module respectively is defeated
Enter end, this external system also includes switching switch, protection module, display module and Keysheet module, described in the utility model to be
A kind of control system for windscreen wiper based on permanent-magnet brushless DC electric machine, its advantage can be achieved on the intelligent control of wiper, i.e.,
Under automatic operation mode, windscreen wiper can realize automatic start-stop and in the way of stepless speed regulation according to the size of rainfall on windshield
The swing of friction speed is realized, replaces traditional brushed DC motor to drag wiper using permanent-magnet brushless DC electric machine in addition
It is dynamic, the advantages of both having inherited big traditional brushed DC motor torque, speed-regulating range width, while solving the knot of brush-commutator
A series of problems, such as voltage, temperature, rotary speed unstabilization are determined in the brush wear that structure is brought, electromagnetic interference, the course of work, effectively prolongs
The life-span of motor is grown.
Used 2. switching switch can select wiper to switch between automatic work and manual work both of which for user.
3. Keysheet module can be for user under manual work pattern, the start and stop of manual control windscreen wiper and swing mode,
It is divided into high speed, low speed, interval and reset, user can carry out rotating speed, delay start, starting duration etc. by Keysheet module in addition
Set.
4. rain sensor judges that rainfall is big according to the density and falling speed of the raindrop on shield glass
It is small, send single-chip microcomputer to after the rainfall size is converted into voltage digital amount through analog-to-digital conversion module and handled, and then realize
The automatic speed regulation of wiper.
5. display module can include the temperature of real-time rainfall size, the swing state of windscreen wiper and motor in liquid crystal
On screen.
6. single-chip microcomputer controls inversion according to the rainfall size of input, adjustment output PWM dutycycle size through drive circuit
MOSFET switch in module, reaches the purpose of control windscreen wiper swing speed.
7. rotor-position detection module, including the hall position sensor being connected with permanent-magnet brushless DC electric machine, Hall position
Put sensor and the positional information of rotor fed back into single-chip microcomputer, single-chip microcomputer calculates the actual speed of motor according to algorithm,
The actual speed and setting speed are compared, the regulation by PI control units after rotating speed difference is obtained so that be actual to turn
Speed, which can be stablized, tends to setting speed, so that rotating speed is not influenceed by external conditions such as temperature, reaches the mesh of motor stabilizing operation
's.
8. control system for windscreen wiper also includes protection module, protection module can monitor the electricity in motor operation course in real time
Flow valuve, excessively stream and rotation-clogging protection are carried out to whole system, once it is determined that breaking down, can stop the action of windscreen wiper immediately, together
When pass through buzzer warning.
Brief description of the drawings
Accompanying drawing 1 is the overall structure block diagram of the control system for windscreen wiper based on permanent-magnet brushless DC electric machine.Rainfall is passed in figure
Sensor connects the input of single-chip microcomputer by analog-to-digital conversion module, and single-chip microcomputer output passes sequentially through isolation drive module and inversion
Module connects permanent-magnet brushless DC electric machine, and permanent-magnet brushless DC electric machine is detected through current detecting protection module and rotor-position respectively
Module connects the feedback input end of single-chip microcomputer, and this external system is also including the switching switch being connected with single-chip microcomputer, protection module, display
Module and Keysheet module.
Embodiment
Below by embodiment and with reference to accompanying drawing 1, the rain based on permanent-magnet brushless DC electric machine provided the utility model
Curette control system is described in detail.
1. the control system for windscreen wiper based on permanent-magnet brushless DC electric machine in the present embodiment, as shown in Figure 1, including is installed
Rain sensor on shield glass, the sensor is used for detecting the size of rainfall on windshield, and passes through mould
Rainfall size is converted into after voltage digital amount by number modular converter, and being transferred to single-chip microcomputer by single-chip microcomputer input is handled,
Single-chip microcomputer is according to the rainfall size digital quantity of input, adjustment output PWM dutycycle size, pass sequentially through isolation drive module and
Permanent-magnet brushless DC electric machine is connected by the MOSFET inversion modules constituted, permanent-magnet brushless DC electric machine is controlled, control is reached
The purpose of windscreen wiper swing speed processed, permanent-magnet brushless DC electric machine is respectively through current detecting protection module and rotor-position detection module
The feedback input end of single-chip microcomputer is connected, by itself working order Real-time Feedback to single-chip microcomputer, this external system also includes and single-chip microcomputer
Connected switching switch, protection module, display module and Keysheet module.
, can be for user's real-time selection wiper in automatic work and manual work two 2. switching switch is connected with single-chip microcomputer
Switch between the pattern of kind and use, when system is run under automatic operation mode, the rainfall size that system will be detected according to sensor
Automatically regulated and controled, when system is run under manual work pattern, user can artificially be grasped by Keysheet module to system
Control.
3. Keysheet module is connected with single-chip microcomputer, can be for user under manual work pattern, the start and stop of manual control windscreen wiper
And mode is swung, swing mode is divided into high speed, low speed, interval and reset, and user can be turned by Keysheet module in addition
Speed, delay start, starting duration etc. are set.
4. rain sensor is arranged on shield glass, can be according to the close of the raindrop on shield glass
Degree and falling speed, judge rainfall size, are transmitted after the rainfall size is converted into voltage digital amount through analog-to-digital conversion module
Handled to single-chip microcomputer, and then realize the automatic speed regulation of wiper.
, can be by real-time rainfall size, the swing state of windscreen wiper and motor 5. display module is connected with single-chip microcomputer
Temperature is shown on liquid crystal display.
6. single-chip microcomputer is according to the rainfall size digital quantity of input, adjustment output PWM dutycycle size, through drive circuit control
MOSFET switch in inversion module processed, reaches the purpose of control windscreen wiper swing speed.
7. rotor-position detection module, including the hall position sensor being connected with permanent-magnet brushless DC electric machine, described
The positional information of rotor is fed back to single-chip microcomputer by hall position sensor, and single-chip microcomputer calculates the reality of motor according to algorithm
Rotating speed, the actual speed and setting speed are compared, and obtain the regulation by PI control units after rotating speed difference so that real
Border rotating speed, which can be stablized, tends to setting speed, so that rotating speed is not influenceed by external conditions such as temperature, reaches that motor stabilizing is run
Purpose.
8. control system for windscreen wiper also includes the protection module being connected with motor, the protection module can monitor electricity in real time
Current value in machine operation process, excessively stream and rotation-clogging protection are carried out to whole system, once it is determined that breaking down, can be stopped immediately
The only action of windscreen wiper, while passing through buzzer warning.
Claims (8)
1. a kind of control system for windscreen wiper based on permanent-magnet brushless DC electric machine, it is characterised in that：It includes keeping out the wind for detecting
The rain sensor of rainfall size on glass, rain sensor connects the input of single-chip microcomputer, monolithic by analog-to-digital conversion module
Machine output end passes sequentially through isolation drive module and inversion module connection permanent-magnet brushless DC electric machine, permanent-magnet brushless DC electric machine point
The feedback input end of single-chip microcomputer is not connected through current detecting protection module and rotor-position detection module, is additionally opened including switching
Pass, protection module, display module and Keysheet module.
2. a kind of control system for windscreen wiper based on permanent-magnet brushless DC electric machine according to claim 1, it is characterised in that：
Described switching switch can switch for user's selection wiper between automatic work manual work both of which to be used.
3. a kind of control system for windscreen wiper based on permanent-magnet brushless DC electric machine according to claim 1, it is characterised in that：
Described Keysheet module can be for user under manual work pattern, and the start and stop of manual control windscreen wiper and swing mode are divided into
At a high speed, low speed, interval and reset, user can setting by Keysheet module progress rotating speed, delay start and starting duration in addition
Put.
4. a kind of control system for windscreen wiper based on permanent-magnet brushless DC electric machine according to claim 1, it is characterised in that：
Described rain sensor judges rainfall size according to the density and falling speed of the raindrop on shield glass, will
The rainfall size sends single-chip microcomputer to after being converted into voltage digital amount through analog-to-digital conversion module and handled, and then realizes wiper
Automatic speed regulation.
5. a kind of control system for windscreen wiper based on permanent-magnet brushless DC electric machine according to claim 1, it is characterised in that：
Described display module can include the temperature of real-time rainfall size, the swing state of windscreen wiper and motor in liquid crystal display
On.
6. a kind of control system for windscreen wiper based on permanent-magnet brushless DC electric machine according to claim 1, it is characterised in that：
Described single-chip microcomputer controls inversion module according to the rainfall size of input, adjustment output PWM dutycycle size through drive circuit
Middle MOSFET switch, reaches the purpose of control windscreen wiper swing speed.
7. a kind of control system for windscreen wiper based on permanent-magnet brushless DC electric machine according to claim 1, it is characterised in that：
Described rotor-position detection module, including the hall position sensor being connected with permanent-magnet brushless DC electric machine.
8. a kind of control system for windscreen wiper based on permanent-magnet brushless DC electric machine according to claim 1, it is characterised in that：
Described control system for windscreen wiper also includes protection module, and the protection module can monitor the electricity in motor operation course in real time
Flow valuve, excessively stream and rotation-clogging protection are carried out to whole system, once it is determined that breaking down, can stop the action of windscreen wiper immediately, together
When pass through buzzer warning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621325967.8U CN206358118U (en) | 2016-12-06 | 2016-12-06 | A kind of control system for windscreen wiper based on permanent-magnet brushless DC electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621325967.8U CN206358118U (en) | 2016-12-06 | 2016-12-06 | A kind of control system for windscreen wiper based on permanent-magnet brushless DC electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206358118U true CN206358118U (en) | 2017-07-28 |
Family
ID=59373485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621325967.8U Expired - Fee Related CN206358118U (en) | 2016-12-06 | 2016-12-06 | A kind of control system for windscreen wiper based on permanent-magnet brushless DC electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206358118U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108528394A (en) * | 2018-03-09 | 2018-09-14 | 安徽理工大学 | A kind of automobile full-automatic induction rain brush and its implementation |
| CN109141507A (en) * | 2018-08-03 | 2019-01-04 | 大陆汽车电子(长春)有限公司 | Hall sensor fault detection method, louver controller and skylight drive system |
| WO2021104339A1 (en) * | 2019-11-29 | 2021-06-03 | 徐育 | Method and device for controlling automatic transmission of automobile windscreen wiper |
-
2016
- 2016-12-06 CN CN201621325967.8U patent/CN206358118U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108528394A (en) * | 2018-03-09 | 2018-09-14 | 安徽理工大学 | A kind of automobile full-automatic induction rain brush and its implementation |
| CN109141507A (en) * | 2018-08-03 | 2019-01-04 | 大陆汽车电子(长春)有限公司 | Hall sensor fault detection method, louver controller and skylight drive system |
| WO2021104339A1 (en) * | 2019-11-29 | 2021-06-03 | 徐育 | Method and device for controlling automatic transmission of automobile windscreen wiper |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170728 Termination date: 20171206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |