CN201941730U - Control circuit of automatic-return wiper motor for vehicle use - Google Patents
Control circuit of automatic-return wiper motor for vehicle use Download PDFInfo
- Publication number
- CN201941730U CN201941730U CN2010206504894U CN201020650489U CN201941730U CN 201941730 U CN201941730 U CN 201941730U CN 2010206504894 U CN2010206504894 U CN 2010206504894U CN 201020650489 U CN201020650489 U CN 201020650489U CN 201941730 U CN201941730 U CN 201941730U
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- mcu
- electrical machine
- rain shaving
- shaving electrical
- return
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Abstract
The utility model discloses a control circuit of an automatic-return wiper motor for vehicle use, which comprises a power supply, a wiper motor, a wiper intermittent switch and a relay. The power supply is connected with an MCU (Microprogrammed Control Unit) and the wiper intermittent switch the other end of which is connected with the MCU. The power supply is connected with the wiper motor and the MCU through the relay. The other end of the wiper motor is connected with the MCU. The control circuit in the utility model further comprises a wiper return signal detecting circuit. One end of the wiper return signal detecting circuit is connected with the wiper motor through the relay while the other end is connected with the MCU. The control circuit in the utility model is highly practical and can be directly applied for BCM (Battery Control and Monitoring) in any automobile so as to achieve precise control on the automatic-return wiper motor. The developing speed of products and the operating efficiency are thus improved.
Description
Technical field
The utility model belongs to auto body controller technology development field, relates generally to the wiper motor control circuit, is specifically related to a kind of automobile-used self-return rain shaving electrical machine control circuit.
Background technology
At present, the wiper motor of band self-return is applied in some low and middle-end vehicles more on the market, this type electric machine control is simple, reliable and stable, only needing provides a triggering level to motor, need not power behind the motor rotation, motor rotation one all backs self-return stops again, and realizes that the intermittence of motor and washing coordinated control only need can control by the high-low level sequential drive motor of fixing.But the shortcoming of this class self-return rain shaving electrical machine be can not the accuracy control rain shaving electrical machine number of times of action, when the windscreen wiper power supply raise, the rain shaving electrical machine action was accelerated, and it is constant to control sequential, causes the increased frequency of motor rotation; When the windscreen wiper power supply reduced, the rain shaving electrical machine action was slack-off, caused the number of times of motor rotation to reduce because of the control sequential is constant, just can not satisfy the requirement of automobile to the rain shaving electrical machine accuracy control like this under different voltage condition.
The utility model content
The purpose of this utility model provides a kind of automobile-used self-return rain shaving electrical machine control circuit, can realize the accuracy control to rain shaving electrical machine, satisfies under different voltage condition the turn round accurate control of all numbers of rain shaving electrical machine.
To achieve these goals, the utility model is by the following technical solutions:
A kind of automobile-used self-return rain shaving electrical machine control circuit, comprise power supply, rain shaving electrical machine, windscreen wiper pause switch and relay, described power supply connects MCU and windscreen wiper pause switch, the windscreen wiper pause switch other end connects MCU, described power supply relay connection rain shaving electrical machine and MCU, and the rain shaving electrical machine other end connects MCU, wherein, also comprise a windscreen wiper return signal deteching circuit, described windscreen wiper return signal deteching circuit one end relay connection rain shaving electrical machine, the other end connects MCU.
Further, described windscreen wiper return signal deteching circuit is made up of capacitor C 1, resistance R 3 and resistance R 4, and capacitor C 1 one ends connect the normally closed switch K1 of resistance R 3 and relay, other end ground connection and resistance R 4, resistance R 4 other end connecting resistance R3 and MCU.
The beneficial effects of the utility model are:
The utility model can be realized the accuracy control to the self-return rain shaving electrical machine, and is portable strong, can directly use on any a automobile BCM, improved the stability of system, shortened time-to-market and improved product development rate and work efficiency.
Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.Target of the present utility model and other advantages can realize and obtain by specifically noted structure in following specification sheets or the accompanying drawing.
Description of drawings
Fig. 1 is a functional block diagram of the present utility model;
Fig. 2 is schematic circuit diagram of the present utility model.
The specific embodiment
Also in conjunction with the accompanying drawings the utility model is described in further detail below by the specific embodiment:
As shown in Figure 1 and Figure 2, the utility model comprises power supply, rain shaving electrical machine, windscreen wiper return signal deteching circuit, windscreen wiper pause switch and relay, power supply connects MCU and windscreen wiper pause switch, the windscreen wiper pause switch other end connects MCU, power supply relay connection rain shaving electrical machine and windscreen wiper return signal deteching circuit, rain shaving electrical machine is connected MCU with the other end of windscreen wiper return signal deteching circuit.
Windscreen wiper return signal deteching circuit is made up of capacitor C 1, resistance R 3 and resistance R 4, and capacitor C 1 one ends connect the normally closed switch K1 of resistance R 3 and relay, other end ground connection and resistance R 4, resistance R 4 other end connecting resistance R3 and MCU.Windscreen wiper return signal deteching circuit is held the P4 that detected signal is delivered to MCU, by MCU control rain shaving electrical machine self-return.
When realizing wiper intermittence and washing interlock function, the P2 of MCU, P3 end detects water spray switch or windscreen wiper pause switch when effective, MCU control relay normally closed switch K1 closure, relay 1,3 end adhesives, the P5 end energising of MCU, the rain shaving electrical machine running, rain shaving electrical machine in-to-in mechanical switch action at this moment, the P4 termination power of MCU; At this moment MCU control relay normally closed switch K1 disconnects, the P4 of MCU, P5 hold closed, because of the P4 end is high level, so rain shaving electrical machine remains in operation, when electricity windscreen wiper machine runs to the return place, the mechanical switch ground connection in the rain shaving electrical machine, the ground connection time can continue more than the 50ms, the level that MCU has sufficient time to detect the P4 end is low, thereby takes corresponding control measures.The P5 end also was a low level when P4 end was low level, and rain shaving electrical machine is finished week running.As remaining in operation, then MCU may command relay normally closed switch K1 closure repeats above process again and gets final product.Like this by P4 being held low level identification judge the number of turns of rain shaving electrical machine work, rather than drive the work of rain shaving electrical machine by fixing high-low level control sequential, so just avoided the influence of mains voltage variations, realized accuracy control rain shaving electrical machine to the motor operation number of turns.
Claims (2)
1. automobile-used self-return rain shaving electrical machine control circuit, comprise power supply, rain shaving electrical machine, windscreen wiper pause switch and relay, described power supply connects MCU and windscreen wiper pause switch, the windscreen wiper pause switch other end connects MCU, described power supply relay connection rain shaving electrical machine and MCU, the rain shaving electrical machine other end connects MCU, it is characterized in that: also comprise a windscreen wiper return signal deteching circuit, described windscreen wiper return signal deteching circuit one end relay connection rain shaving electrical machine, the other end connects MCU.
2. a kind of automobile-used self-return rain shaving electrical machine control circuit according to claim 1, it is characterized in that: described windscreen wiper return signal deteching circuit is made up of capacitor C 1, resistance R 3 and resistance R 4, capacitor C 1 one ends connect the normally closed switch K1 of resistance R 3 and relay, other end ground connection and resistance R 4, resistance R 4 other end connecting resistance R3 and MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206504894U CN201941730U (en) | 2010-12-09 | 2010-12-09 | Control circuit of automatic-return wiper motor for vehicle use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206504894U CN201941730U (en) | 2010-12-09 | 2010-12-09 | Control circuit of automatic-return wiper motor for vehicle use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201941730U true CN201941730U (en) | 2011-08-24 |
Family
ID=44469078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206504894U Expired - Fee Related CN201941730U (en) | 2010-12-09 | 2010-12-09 | Control circuit of automatic-return wiper motor for vehicle use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201941730U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390356A (en) * | 2011-09-30 | 2012-03-28 | 龚文资 | Self-return system for auto wiper motors |
| CN103010163A (en) * | 2012-11-13 | 2013-04-03 | 中国重汽集团济南动力有限公司 | Rain wiper control system and motor control method |
| CN105353309A (en) * | 2015-12-04 | 2016-02-24 | 江苏大学 | Automobile wiper motor performance detection apparatus and detection method |
| CN113060097A (en) * | 2021-04-09 | 2021-07-02 | 东风柳州汽车有限公司 | Control method and system of wiper motor |
-
2010
- 2010-12-09 CN CN2010206504894U patent/CN201941730U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390356A (en) * | 2011-09-30 | 2012-03-28 | 龚文资 | Self-return system for auto wiper motors |
| CN102390356B (en) * | 2011-09-30 | 2013-10-23 | 龚文资 | Self-return system for auto wiper motors |
| CN103010163A (en) * | 2012-11-13 | 2013-04-03 | 中国重汽集团济南动力有限公司 | Rain wiper control system and motor control method |
| CN103010163B (en) * | 2012-11-13 | 2015-04-22 | 中国重汽集团济南动力有限公司 | Rain wiper control system and motor control method |
| CN105353309A (en) * | 2015-12-04 | 2016-02-24 | 江苏大学 | Automobile wiper motor performance detection apparatus and detection method |
| CN105353309B (en) * | 2015-12-04 | 2018-04-24 | 江苏大学 | A kind of automobile wiper motor method for testing performance |
| CN113060097A (en) * | 2021-04-09 | 2021-07-02 | 东风柳州汽车有限公司 | Control method and system of wiper motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HEBI TIANHAI UNIVERSAL ELECTRIC CO., LTD. Assignor: THB Tianhai Science and Technology Co., Ltd. Contract record no.: 2013410000097 Denomination of utility model: Control circuit of automatic-return wiper motor for vehicle use Granted publication date: 20110824 License type: Exclusive License Record date: 20131230 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HEBI TIANHAI UNIVERSAL ELECTRIC CO., LTD. Assignor: THB Tianhai Science and Technology Co., Ltd. Contract record no.: 2013410000097 Denomination of utility model: Control circuit of automatic-return wiper motor for vehicle use Granted publication date: 20110824 License type: Exclusive License Record date: 20131230 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20131209 |