CN202299850U - Vehicle window control device based on MC9S12 single chip microcomputer - Google Patents
Vehicle window control device based on MC9S12 single chip microcomputer Download PDFInfo
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- CN202299850U CN202299850U CN201120440731XU CN201120440731U CN202299850U CN 202299850 U CN202299850 U CN 202299850U CN 201120440731X U CN201120440731X U CN 201120440731XU CN 201120440731 U CN201120440731 U CN 201120440731U CN 202299850 U CN202299850 U CN 202299850U
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- vehicle window
- control device
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Abstract
The utility model discloses a vehicle window control device based on a MC9S12 single chip microcomputer. The device comprises an automatic control unit based on the MC9S12 single chip microcomputer, at least two control signal input units and at least one drive unit. At least two control signal input units and at least one drive unit are respectively connected with the automatic control unit. The vehicle window automatic-lifting control device is good in circuit design and energy-saving performance, small in power, convenient to use, capable of being widely applied to various vehicles and high in cost performance.
Description
Technical field
The utility model belongs to Vehicular intelligent control field, is specifically related to a kind of vehicle window control device based on the MC9S12 single-chip microcomputer.
Background technology
Intelligent vehicle control is the forward position of current Vehicle Engineering technical field, and it has embodied Vehicle Engineering, information engineering, electronic technology, the intersection of a plurality of fields such as computer technology theory and practice.The extensive application of intelligent control technology aspect vehicle makes vehicle at aspects such as automatic controls tangible progress arranged, and further promotes the vehicle control technology towards automation, intellectuality, and hommization, the direction of safety develops.In view of the raising of vehicle automaticity at present, the automatic lifting of vehicle window seems more and more important.Therefore, study a kind of simple and easy, safety good, cheap vehicle window automatic lifting system is necessary.
Summary of the invention
To the defective or the deficiency of prior art, the purpose of the utility model is to provide a kind of vehicle window control device based on the MC9S12 single-chip microcomputer.Adopt this vehicle window automatic lifting control device, press lifting key, vehicle window can at the uniform velocity rise, and when rising to the top, stops; By the decline key, vehicle window can at the uniform velocity descend, and drops to the bottom and stops, to realize the vehicle window automatic lifting.
To achieve these goals, the utility model adopts following technical solution:
A kind of vehicle window control device based on the MC9S12 single-chip microcomputer is characterized in that, comprises the automatic control unit based on the MC9S12 single-chip microcomputer, at least two control signal input blocks and at least one driver element; Said at least two control signal input blocks are connected with automatic control unit respectively with at least one driver element.
The other technologies of the utility model are characterized as:
Described vehicle window control device comprises ten control signal input blocks, and these ten control signal input blocks are connected with automatic control unit respectively.
Described vehicle window control device comprises four driver elements, and these four driver elements are connected with automatic control unit respectively.
Said control signal input block adopts toggle switch.
Said driver element comprises full bridge driving circuit and the digital protection circuit that is connected; Said full bridge driving circuit adopts two BTS7960 chips; These two BTS7960 chips are respectively BTS7960 chip U1 and BTS7960 chip U2; Said digital protection circuit adopts the 74LS244B chip, and said BTS7960 chip U1 is connected with the 74LS244B chip respectively with BTS7960 chip U2, and said 74LS244B chip is connected with automatic control unit.
Said automatic control unit based on the MC9S12 single-chip microcomputer adopts the MC9S12XDP512 single-chip microcomputer.
The utlity model has following advantage:
(1) driver element has self-protection function; When situation such as chip for driving generation puncture overload; Digital protection circuit meeting disabling signal between control module and the chip for driving can not influenced control module, thereby played the effect of protection control module by the input of chip for driving to control module.
(2) drive circuit adopts two BTN7960 simultaneous to constitute full-bridge, and this circuit volume is little, and calorific value is little, and control performance is superior.Drive current can reach 68A, and internal resistance has only about 7M Ω.
(3) circuit design good energy saving property, the power of this device are little, easy to use, can be widely used in various vehicles, and cost performance is high, easily large-scale mass production.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is a control signal input block schematic diagram;
Fig. 3 is a full bridge driving circuit;
Fig. 4 is a digital protection circuit;
Fig. 5 is the pin elementary diagram of automatic control unit.
Below in conjunction with accompanying drawing and the specific embodiment the utility model is done further and to be explained.
The specific embodiment
Embodiment:
With reference to Fig. 1, the vehicle window automatic lifting control device of this embodiment comprises the automatic control unit based on the MC9S12 single-chip microcomputer, ten control signal input blocks and four driver elements; Said ten control signal input blocks are connected with automatic control unit respectively with four driver elements.Device is supplied power by vehicle lead-acid storage battery, and this battery is output as 12 volts of direct currents, and Vehicular accumulator cell connects Voltage stabilizing module.Voltage stabilizing module adopts the LM2940-5 voltage-stabiliser tube, pin ground connection in the middle of the LM2940-5,12 volts of positive sources of input termination; Input is through 330 microfarad capacity earths; Output is through 330 microfarad capacity earths, and output is 5 volts, gives automatic control unit; Digital protection circuit power supply in control signal input-cell circuitry and the driver element, the full bridge driving circuit in the driver element is directly supplied power by lead-acid accumulator.
With reference to Fig. 2, the control signal input block is made up of toggle switch and 1K resistance, and an end of toggle switch connects the 1O mouth of automatic control unit, and the other end connects 1K resistance, and the other end of 1K resistance connects+5 volts of voltages.Because of having ten kinds of input pattern signals, so use 10 switches, these ten kinds of input signals connect ten IO mouths of automatic control unit respectively; Be respectively A0---A7 and B0; B1, this signal input unit supplies automatic control unit to detect to automatic control unit input high level signal.
With reference to Fig. 3; The driver element circuit is made up of full bridge driving circuit and digital protection circuit, after the signal process digital protection circuit from control module, is defeated by full bridge driving circuit again; When phenomenons such as full bridge driving circuit appearance overload; Digital protection circuit can protect automatic control unit not receive the influence of drive circuit, has strengthened the modularization of circuit, has improved the safety in utilization of circuit.Full bridge driving circuit adopts the full-bridge direct current motor drive circuit of being made up of BTS7960 chip U1 and BTS7960 chip U2.In full bridge driving circuit figure, the 1 pin ground connection of 1 pin of U1 and U2,2 pin of U1 and U2 respectively are connected the resistance of 560K ohm; The other end of resistance connects the signal from the numerical protection chip; 3 pin of U1 connect+5 volts of voltages through 710K resistance, and 3 pin of U2 connect+5 volts of voltages through 710K resistance, and 4 pin of U1 connect an end of direct current generator as the output of this drive circuit; 4 pin of U2 connect the other end of direct current generator as another output of this drive circuit; 5 pin of U1 and U2 pass through the 1K resistance eutral grounding respectively, and 6 pin of U1 and U2 are through the 2.2K resistance eutral grounding, and 7 pin of U1 and U2 are connected 7.2 volts of anode ends.
With reference to figure 4, digital protection circuit adopts the 74LS244B chip, and 20 pin of this chip connect positive 5 volts, 1 pin, 10 pin and 19 pin ground connection; 2 pin are connected the pulse width modulation module output ground PWM ripple of automatic control unit, 6 pin, 8 pin, 11 pin with 4 pin; 13 pin, 15 pin, 17 pin, 3 pin; 5 pin, 7 pin, 9 pin, 12 pin, 14 pin are ground connection respectively.18 pin and 16 pin are connected the control signal input (2 pin of U1 and U2) of full bridge driving circuit respectively.
With reference to figure 5; MC9S12XDP512 in the HCS12 series monolithic that automatic control unit employing Freescale company produces; It is the microprocessor of 16 bit of a high-performance, low-power consumption, inside is integrated a plurality of universal I interfaces, pulse width modulation module and enhancement mode timer module.Saved external circuit design and software realization comparatively easily during use, made that detection input signal and motor-driven are more accurate.This single-chip microcomputer has stronger IO mouth measuring ability, can accurately detect the level situation of the port that uses, and simultaneously, according to detected RST, the PWM ripple of output different situations is controlled the just commentaries on classics of glass for vehicle window motor, stops counter-rotating.
Driver element among this embodiment is made up of 4 groups of full bridge driving circuits and digital protection circuit; (PP0---PP7) pin connects four groups of digital protection circuits respectively to 8 P mouths of automatic control unit; The corresponding digital holding circuit connects full bridge driving circuit more respectively, realizes that 8 P mouths control four groups of driver elements.These four groups of driver elements are installed in respectively on four car doors; Each car door has a dc motor; By two P mouths (like PP0 and PP1) output signal of automatic control unit,, control a dc motor through over-drive unit; The spur rack that this dc motor rotation drives fixing glass moves up and down, thereby realizes the automatic lifting of glass.
One all can be provided with four car doors every car, and each car door is arranged two toggle switchs, is responsible for the input of control signal; These two groups of control signal input modules connect 2 different IO mouths (PA0 and PA1) respectively, in program, set, when PA0 detects high level PA1 and is low level; The square wave that the PP0 output duty cycle is certain; The PP1 output low level realizes that motor just changes, and vehicle window rises.When PA0 detects low level PA1 and is high level, the PP0 output low level, the square wave that the PP1 output duty cycle is certain is realized the motor counter-rotating, vehicle window descends, all the other situation are then kept motor does not change, the control situation of other three car doors then with this class seemingly.Wherein control signal input toggle switch is that the signal input switch is installed in the passenger of car door place hand handled easily place.The control signal of second car door flows to the PA2 and the PAS of automatic control unit, and motor drive signal is exported to second group of drive circuit by the PP2 and the PP3 of automatic control unit.Defeated Song of the input signal of the 3rd car door gives the PA4 and the PA5 of automatic control unit, and motor drive signal is exported to the 3rd group of drive circuit by the PP4 and the PP5 of automatic control unit.The input signal of the 4th car door flows to the PA6 and the PA7 of automatic control unit, and motor drive signal is exported to the 4th group of drive circuit by the PP6 and the PP7 of automatic control unit.
The control signal input block of automatic control unit PB0 and PB1 is that the signal input switch then is installed in the driver's operation place; This group input signal is imported by the driver; It can realize the Comprehensive Control of driver to vehicle window, realizes whole rises of vehicle window, all descends.When automatic control unit detects PB0 and is low level for high level PB1; Then controlling corresponding P mouth, realize that four glasss for vehicle window rise simultaneously, is low level when automatic control unit detects PB1 for high level PB0; Then control corresponding P mouth, realize that four glasss for vehicle window are both decline.In case automatic control unit detects the signal of PB0 and PB1 simultaneously; The input of other four groups of signals is then invalid; Realized that the driver is higher than the passenger at each place to the controlling level of vehicle window, thereby reduced the possibility of occurrence of traffic accident, improved to drive and take safety.
The utlity model has easy to makely, circuit design is simple, response fast, precise control, cost is low, safety is good, can equip simultaneously and a large amount of first-class characteristics of passenger car.
Claims (6)
1. the vehicle window control device based on the MC9S12 single-chip microcomputer is characterized in that, comprises the automatic control unit based on the MC9S12 single-chip microcomputer, at least two control signal input blocks and at least one driver element; Said at least two control signal input blocks are connected with automatic control unit respectively with at least one driver element.
2. vehicle window control device as claimed in claim 1 is characterized in that, described vehicle window control device comprises ten control signal input blocks, and these ten control signal input blocks are connected with automatic control unit respectively.
3. vehicle window control device as claimed in claim 1 is characterized in that, described vehicle window control device comprises four driver elements, and these four driver elements are connected with automatic control unit respectively.
4. like claim 1 or the described vehicle window control device of 2 arbitrary claims, it is characterized in that said control signal input block adopts toggle switch.
5. according to claim 1 or the described vehicle window control device of 3 arbitrary claims; It is characterized in that; Said driver element comprises full bridge driving circuit and the digital protection circuit that is connected; Said full bridge driving circuit adopts two BTS7960 chips, and these two BTS7960 chips are respectively BTS7960 chip U1 and BTS7960 chip U2, and said digital protection circuit adopts the 74LS244B chip; Said BTS7960 chip U1 is connected with the 74LS244B chip respectively with BTS7960 chip U2, and said 74LS244B chip is connected with automatic control unit.
6. vehicle window control device according to claim 1 is characterized in that, said automatic control unit based on the MC9S12 single-chip microcomputer adopts the MC9S12XDP512 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120440731XU CN202299850U (en) | 2011-11-09 | 2011-11-09 | Vehicle window control device based on MC9S12 single chip microcomputer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120440731XU CN202299850U (en) | 2011-11-09 | 2011-11-09 | Vehicle window control device based on MC9S12 single chip microcomputer |
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| Publication Number | Publication Date |
|---|---|
| CN202299850U true CN202299850U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120440731XU Expired - Fee Related CN202299850U (en) | 2011-11-09 | 2011-11-09 | Vehicle window control device based on MC9S12 single chip microcomputer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009678A (en) * | 2014-05-21 | 2014-08-27 | 芜湖蓝宙电子科技有限公司 | Double-motor control module circuit |
| CN105867565A (en) * | 2016-05-03 | 2016-08-17 | 河南师范大学 | Intelligent cooling device for laptop |
-
2011
- 2011-11-09 CN CN201120440731XU patent/CN202299850U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009678A (en) * | 2014-05-21 | 2014-08-27 | 芜湖蓝宙电子科技有限公司 | Double-motor control module circuit |
| CN105867565A (en) * | 2016-05-03 | 2016-08-17 | 河南师范大学 | Intelligent cooling device for laptop |
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| 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: 20120704 Termination date: 20141109 |
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| EXPY | Termination of patent right or utility model |