CN203381598U - Intelligent windshield wiper control device based on CAN bus - Google Patents
Intelligent windshield wiper control device based on CAN bus Download PDFInfo
- Publication number
- CN203381598U CN203381598U CN201320475266.2U CN201320475266U CN203381598U CN 203381598 U CN203381598 U CN 203381598U CN 201320475266 U CN201320475266 U CN 201320475266U CN 203381598 U CN203381598 U CN 203381598U
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- China
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- windshield wiper
- bus
- control device
- control unit
- wiper motor
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- Expired - Fee Related
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Abstract
The utility model discloses an intelligent windshield wiper control device based on a CAN bus. The intelligent windshield wiper control device comprises a windshield wiper motor. The windshield wiper motor is in conductor joint with a windshield wiper motor driver module, the windshield wiper motor driver module is in conductor joint with a control unit, and a rain sensor is in conductor joint with the control unit through a bus module. Therefore, the problems of quick fuel consumption caused by the fact that reliability is reduced and the weight of the whole vehicle is increased due to numerous circuits and complex wiring because a relay module is adopted in windshield wiper control in the prior art and cockamamie operation and poor timeliness due to the fact that windshield wiper control is achieved through an artificial button are solved.
Description
Technical field
The utility model relates to vehicle electronics circuit control technology, relates in particular to a kind of Intelligent control device of windshield wiper based on the CAN bus.
Background technology
Along with economic fast development, automobile industry has also obtained faster development, so people are more and more higher to the requirement of Integral automobile performance, and safety performance is wherein very important one.In the middle of rainy day driving process, the front truck Windshield can not effectively be removed because of rainwater, cause pilot's line of vision fuzzy, easily cause traffic accident, traditional windshield wiper control system adopts the relay stand-alone mode to control mostly at present, this makes the interior wire harness of car too much and the wiring complexity, easily causes electromagnetic interference, makes the reliability decrease of system; The increase of consumer makes that the car connecting lead wire expands rapidly, the quantity of electric connection obviously increases, and causes the increase of complete vehicle weight, and then causes the consumption of vehicle fuel and the reliability decrease in the Vehicle Driving Cycle process; Rain brush is controlled and mainly by button, is carried out switch control simultaneously, does not realize intelligent control, and complex operation and real-time are poor, and rain brush can not be regulated automatically by the variation of external environment condition.
Summary of the invention
The technical problems to be solved in the utility model: a kind of Intelligent control device of windshield wiper based on the CAN bus is provided, control the circuit that adopts relay mode the to exist complexity that connects up more and cause reliability to reduce and the complete vehicle weight increase causes fuel oil consumption fast to solve the prior art vehicle windscreen wipers, and rain brush is controlled by manual pushbutton and controlled the complex operation of existence and the problem such as real-time is poor.
Technical solutions of the utility model:
A kind of Intelligent control device of windshield wiper based on the CAN bus, it comprises Wiper motor, Wiper motor is connected with Wiper motor driver module wire, and the Wiper motor driver module is connected with the control unit wire, and rain sensor is connected with the control unit wire by bus module.
Control unit is connected by the CAN bus with the car load network.
Control unit comprises central microprocessor and CAN bus transceiver, and central microprocessor is connected with CAN bus transceiver wire, and the CAN bus transceiver is connected with the car load network conductors.
Rain sensor is the optical profile type rain sensor.
The beneficial effects of the utility model:
The utility model CAN bussing technique derives from so very proven technique of industrial field control bus and LAN, there is very high reliability, real-time and anti-interference resistance, be particularly suitable for this work under bad environment of automobile, electromagnetic radiation by force and vibrate large workplace.Its principal feature is: only by quantity, few wire just can be realized the real-time Transmission of multi-path signal.The utility model has been realized the rain brush intelligent control function, and by adopting rain sensor to control wiper status, the environment by rain sensor to motor vehicle environment is judged, and controls as required the mode of operation of rain brush, the Based Intelligent Control of realization to rain brush; Compared with the prior art, the beneficial effects of the utility model are, the wire that can make to connect in car reduces, and the rainy dataller of this control setup makes the condition intelligent adjusting function simultaneously, can effectively prevent because of the fuzzy traffic accident caused of rainy day pilot's line of vision, improve the safety of automobile., flexibly control convenient to rain brush that this system realizes has intelligent control function and perfect defencive function simultaneously.The electromagnetic interference that has solved the existence of Wiper motor relay drive pattern is large, and reliability is low can not be changed and the problems such as automatic adjusting according to external environment condition with rain brush.
the accompanying drawing explanation:
Fig. 1 is the utility model control structure schematic diagram.
embodiment:
A kind of Intelligent control device of windshield wiper based on the CAN bus, it comprises Wiper motor, Wiper motor is connected with Wiper motor driver module wire, and the Wiper motor driver module is connected with the control unit wire, and rain sensor is connected with the control unit wire by bus module.
Control unit is connected by the CAN bus with the car load network.
Control unit comprises central microprocessor and CAN bus transceiver, central microprocessor is connected with CAN bus transceiver wire, the CAN bus transceiver is connected with the car load network conductors, by the car load network, the information of control unit is delivered to the vehicle-mounted monitoring unit wiper status and the outer rainfall of car are monitored in real time.
Rain sensor can adopt one or more, after unified access bus module, delivers to control unit, and rain sensor is arranged on the front windshield of car or on glass after car rainfall is measured in real time.
M/C button Access Control unit, can work by the M/C rain brush simultaneously.
The core that control unit is whole rain brush control setup, consider the working environment that automobile is severe, and the elite micro controller system of the MC9S08DZ60 with the CAN controller of selecting the Freescale company that cost performance is higher is the core design control circuit; The MC9S08DZ60 internal resource is abundant, required external devices is few, the BKGD/MS pin can be conveniently implemented in the line programming, this microprocessor aims at automobile applied environment design, has in 40MHz dominant frequency, 60KB sheet the E2PROM of RAM, 2KB on Flash memory device, 4KB sheet, 53 I/O ports, 24 interrupt pin, supports two kinds of super low-power consumption patterns.The embedded MSCAN module of MC9S08DZ60 is supported the CAN2.0A/B agreement, and the body control system that the MC9S08DZ60 of take is core can work in-40 ℃～+ 85 ℃ scopes, has the characteristics of high reliability and low-power consumption.
Adopt the optical profile type rain sensor to realize the automatic control to rain brush.Optical sensor is according to the refraction principle work of light, it can accurately judge the raindrop number be dropped on sensed zone, when the rainfall variation being detected, sensor transmits a signal to controller and is processed, thereby realizes the automatic adjusting to rain brush.Also can manually control by governor or hand push button.
The CAN bus transceiver adopts TJA1050.Because CAN controller power-handling capability is limited, therefore need to add the CAN bus driver to strengthen the integraty of CAN signal transmission distance and signal transmission.
The Wiper motor driver module adopts smart power chip BTS6143D, it directly is connected with microcontroller MC9S08DZ60, and reception control signal.BTS6143D is the N channel fet power tube of INFINEON company design, inner integrated charge pump, current drives, and there is the fault feedback function (comprise overload, cross gentle short-circuit detecting etc.) of load current detection, it is the flash smart power switch chip of technology on integrated SIPMOS sheet, BTS6143D can be used for driving high power device, as motor etc.
Power circuit comprises storage battery and voltage stabilizing/insulating power supply.The vehicle power of automotive system is+12V, and controller needs+12V and+two kinds of DC power supply of 5V.Therefore need to carry out level conversion, 12V accumulator DC in automobile is converted to the direct current circuit of 5V by mu balanced circuit, then microcontroller and other ECU (Electrical Control Unit) are powered.Wherein+12V power supply is mainly to provide driving voltage to power chip, and+5V power supply provides operating voltage to the chip in circuit.
Claims (4)
1. the Intelligent control device of windshield wiper based on the CAN bus, it comprises Wiper motor, it is characterized in that: Wiper motor is connected with Wiper motor driver module wire, and the Wiper motor driver module is connected with the control unit wire, and rain sensor is connected with the control unit wire by bus module.
2. a kind of Intelligent control device of windshield wiper based on the CAN bus according to claim 1, it is characterized in that: control unit is connected by the CAN bus with the car load network.
3. a kind of Intelligent control device of windshield wiper based on the CAN bus according to claim 1 and 2, it is characterized in that: control unit comprises central microprocessor and CAN bus transceiver, central microprocessor is connected with CAN bus transceiver wire, and the CAN bus transceiver is connected with the car load network conductors.
4. a kind of Intelligent control device of windshield wiper based on the CAN bus according to claim 1, it is characterized in that: rain sensor is the optical profile type rain sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320475266.2U CN203381598U (en) | 2013-08-06 | 2013-08-06 | Intelligent windshield wiper control device based on CAN bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320475266.2U CN203381598U (en) | 2013-08-06 | 2013-08-06 | Intelligent windshield wiper control device based on CAN bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203381598U true CN203381598U (en) | 2014-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320475266.2U Expired - Fee Related CN203381598U (en) | 2013-08-06 | 2013-08-06 | Intelligent windshield wiper control device based on CAN bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203381598U (en) |
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2013
- 2013-08-06 CN CN201320475266.2U patent/CN203381598U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20140806 |
|
| EXPY | Termination of patent right or utility model |