CN205255939U - Electric automobile air conditioning control system - Google Patents
Electric automobile air conditioning control system Download PDFInfo
- Publication number
- CN205255939U CN205255939U CN201620005580.8U CN201620005580U CN205255939U CN 205255939 U CN205255939 U CN 205255939U CN 201620005580 U CN201620005580 U CN 201620005580U CN 205255939 U CN205255939 U CN 205255939U
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- CN
- China
- Prior art keywords
- ptc heater
- air
- electric automobile
- pwm module
- control system
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Air-Conditioning For Vehicles (AREA)
Abstract
The utility model discloses an electric automobile air conditioning control system, including air conditioner controller, PWM module, power module and PTC heater, the PWM module includes singlechip, inverter circuit and drive circuit, and the air conditioner controller is connected with the singlechip, and the singlechip is connected with drive circuit, and drive circuit is connected with inverter circuit, and the PTC heater is controlled to the inverter circuit connection, the air conditioner controller is connected with power module, PTC heater respectively, and power module is connected with PWM module, PTC heater respectively. The utility model discloses an adopt the electrodeless regulation PTC heater power of PWM module, can realize the accurate control of air -conditioning outlet temperature, reduce air outlet temperature fluctuations, very big improvement whole car riding comfort, improve the whole economic nature of car simultaneously, electrodeless regulation PTC heater power reduces corresponding waste.
Description
Technical field
The utility model relates to air conditioning for automobiles field, particularly a kind of electric automobile air conditioner control system.
Background technology
In short supply along with global resources situation in recent years, and people constantly advocate and set up the energy-saving and environmental protection type worldRequirement, low-carbon economy becomes the theme of China's economic development. Electric automobile can reduce consumption of petroleum,Reduce dusty gas discharge, become the industry that China greatly develops, receive gradually increasing concern.The heating system of pure electric automobile air conditioning is mainly divided into two kinds at present: the heating of PTC water and the heating of PTC wind; OrderThe PTC wind heating of the front market mainstream is generally single grade or many grades; Electric automobile air conditioner heating adopts single grade of PTC, PTC can only control out or close, can not ACTIVE CONTROL car load compartment temperature, and the temperature of air-conditioner air outletDegree fluctuation is large, and car load comfortableness is poor; Adopting many grades of PTC can improve air-conditioner air outlet temperature fluctuation and car load relaxesThe poor problem of adaptive, but cannot accomplish accurately to control air outlet temperature.
Utility model content
The utility model is for solving the problems of the technologies described above as providing the one can electrodeless adjusting ptc heater power, accurately control the electric automobile air conditioner control system of temperature.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of electric automobile air conditioner control system, comprise air-conditioner controller, PWM module, power module andPtc heater; Described PWM module comprises single-chip microcomputer, inverter circuit and drive circuit, described air-conditioningController is connected with single-chip microcomputer, and described single-chip microcomputer is connected with drive circuit, described drive circuit and inversionCircuit is connected, and described inverter circuit connects and controls ptc heater; Described air-conditioner controller respectively with electricitySource module, ptc heater are connected, described power module respectively with PWM module, ptc heater phaseConnect.
The utility model beneficial effect is: by adopting the electrodeless adjusting ptc heater of PWM module power,Can realize the accurate control of air-conditioner air outlet temperature, reduce air outlet temperature fluctuation, improve greatly car loadRiding comfort; Improve car load economy, electrodeless adjusting ptc heater power, reduces corresponding wave simultaneouslyTake.
As a kind of preferred structure of the present utility model, for improvement system does not have the problem of temperature protection function,Also comprise temperature protection circuit, described temperature protection circuit is arranged between air-conditioner controller and ptc heater,And be connected with ptc heater with air-conditioner controller respectively. So, by temperature protection circuit, for protectingWhile protecting ptc heater heating, there is the situation that abnormal temperature is high, ptc heater is protected.
As a kind of preferred structure of the present utility model, for improvement system does not have asking of relay protecting functionTopic, also comprises relay, and described relay is arranged between power module and PWM module, and and PWMModule is connected, and described air-conditioner controller connects and control relay. So, by being arranged on power moduleAnd relay between PWM module, for controlling the automatic switch of PWM module, play automatic adjusting,The effect such as safeguard protection, change-over circuit.
As a kind of preferred structure of the present utility model, in order to improve the problem that there is no temperature sensor, also bagDraw together temperature sensor, described temperature sensor is arranged in electric automobile, described single-chip microcomputer and temperature sensorBe connected. So, by temperature sensor, the real time temperature in electric automobile can be detected, for regulatingTemperature provides foundation.
As a kind of preferred structure of the present utility model, cannot accurately control temperature in order to improve ptc heaterProblem, the quantity of described ptc heater is four, four ptc heaters are parallel with one another, described PWMModule is driven and is controlled four ptc heaters by timesharing. So, by four ptc heaters of parallel connection,Driven to control by timesharing by PWM module and further ensure the accuracy of controlling temperature.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model electric automobile air conditioner control system.
Label declaration:
1, air-conditioner controller; 2, PWM module; 3, power module; 4, ptc heater;5, single-chip microcomputer; 6, inverter circuit; 7, drive circuit.
Detailed description of the invention
By describing technology contents of the present utility model, structural feature in detail, being realized object and effect, belowIn conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
Please refer to Fig. 1, known as shown in the figure, the utility model electric automobile air conditioner control system comprises air-conditioning controlDevice 1 processed, PWM module 2, power module 3 and ptc heater 4; PWM module 2 comprises single-chip microcomputer5, inverter circuit 6 and drive circuit 7, air-conditioner controller 1 is connected with single-chip microcomputer 5, single-chip microcomputer 5 withDrive circuit 7 is connected, and drive circuit 7 is connected with inverter circuit 6, and inverter circuit 6 connects and controlsPtc heater 4; Air-conditioner controller 1 is connected with power module, ptc heater 4 respectively, power supply mouldPiece 3 is connected with PWM module 2, ptc heater 4 respectively. PWM module 2 is pulse width modulation,Pwm pulses width modulated is a kind of analog control mode, and its variation according to respective loads is adjustedThe biasing of transistor base processed or metal-oxide-semiconductor grid, realizes the change of transistor or metal-oxide-semiconductor ON time,Thereby realize the change of switching power supply output. This mode can make the output voltage of power supply in condition of workWhen variation, keeping constant, is to utilize one that the data signal of microprocessor controls analog circuit veryEffectively technology. Pulsewidth modulation (PWM) general principle: control mode is exactly to inverter circuit 6 derailing switchesThe break-make of part is controlled, and makes output obtain the pulse that a series of amplitudes are equal, replaces with these pulsesSinusoidal wave or needed waveform. Namely in the half period of output waveform, produce multiple pulses, make eachThe threshold voltage such as grade of pulse is sinusoidal waveform, and the output smoothing and the low-order harmonic that obtain are few. By certain ruleWidth to each pulse is modulated, and can change the size of inverter circuit 6 output voltages, also can change defeatedGo out frequency.
In the present embodiment, in a PWM module 2 of ptc heater 4 front end serial connections, by air-conditioning controlDevice 1 is given PWM module 2 input signals, adjusts the magnitude of voltage of ptc heater 4 high-pressure sides; When vehicle is taken advantage ofMember adjusts the temperature setting (become large or reduce) on air-conditioning panel, and air-conditioner controller is inputted to PWM module 2Square wave adjust PWM module 2 two ends high tension voltage values and become large or reduce the output work of ptc heater 4Rate also becomes large thereupon or reduces; Thereby realization can electrodeless adjusting ptc heater 4 both end voltage values reach PTCThe step-less adjustment of heater 4 power. Drive circuit 7 is for driving single-chip microcomputer 5, and inverter circuit 6 is for realizingElectrodeless adjusting ptc heater 4 both end voltage values, drive circuit 7 and inverter circuit 6 are common existing skillDrive circuit 7 in art and inverter circuit 6.
In the present embodiment, also comprise temperature protection circuit, temperature protection circuit is arranged on air-conditioner controller 1 HeBetween ptc heater 4, and be connected with ptc heater 4 with air-conditioner controller 1 respectively. The present embodimentIn, take PT100 platinum resistance thermometer sensor, as example as temperature protection circuit, adopt a divider resistance and PT100 stringConnection, after series connection, divider resistance and PT100 two ends are connected with power positive cathode respectively. Attentional selection resistance,Make its electric current passing through not too much, one side PT100 heating causes measuring inaccurate, and general Limited Current exists4mA is with interior more suitable. Dividing potential drop output point voltage, the namely voltage at PT100 two ends, can reflect temperatureHeight, temperature is higher, output voltage is higher. Output point connects a window comparator, works as output voltageHigher than prescribing a time limit on comparator, output high level, lower than relatively in limited time more lower, output low level, output voltage existsBetween upper and lower bound time, comparator output maintains. The upper voltage limit corresponding temperature upper limit of comparator, lower limitUnder voltage corresponding temperature. The bound of comparator also can adopt electric resistance partial pressure to obtain, divider resistance and PT100Divide hydraulic circuit to share a power supply. So, by temperature protection circuit, heat for the protection of ptc heaterTime there is the situation that abnormal temperature is high, ptc heater is protected.
In the present embodiment, also comprise relay, relay is arranged between power module 3 and PWM module 2,And be connected with PWM module 2, air-conditioner controller 1 connects and control relay. So, by being arranged onRelay between power module and PWM module 2, for controlling the automatic switch of PWM module 2, risesThe effects such as adjusting automatically, safeguard protection, change-over circuit. In this enforcement, also comprise temperature sensor, temperatureDegree sensor setting is in electric automobile, and single-chip microcomputer 5 is connected with temperature sensor. So, pass through temperatureSensor, can detect the real time temperature in electric automobile, for regulating temperature that foundation is provided. The present embodimentIn, the quantity of ptc heater 4 is four, four ptc heaters 4 are parallel with one another, PWM module 2Drive and control four ptc heaters 4 by timesharing. So, by four ptc heaters 4 of parallel connection,Driven to control by timesharing by PWM module 2 and further ensure the accuracy of controlling temperature.
In use procedure, in original electric automobile air conditioner control system, add PWM module 2, at PTCA PWM module 2 of heater 4 front end series connection, the magnitude of voltage of adjustment ptc heater 4 two ends high-pressure sidesAdjust the heating power of ptc heater 4, can electrodeless adjusting ptc heater 4 power gears, greatlyImprove car load heating comfortableness. The utility model adopts PWM module 2 electrodeless adjusting PTC power, canRealize the accurate control of air-conditioner air outlet temperature, cost is low, only need on existing equipment, add PWM mouldPiece 2, easy to use, practical.
The foregoing is only embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model,Every equivalent shapes or Structural Transformation that utilizes the utility model description and accompanying drawing content to do, or directly orIndirectly be used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. an electric automobile air conditioner control system, is characterized in that: comprise air-conditioner controller, PWM mouldPiece, power module and ptc heater;
Described PWM module comprises single-chip microcomputer, inverter circuit and drive circuit, described air-conditioner controller and listSheet machine is connected, and described single-chip microcomputer is connected with drive circuit, and described drive circuit is connected with inverter circuit,Described inverter circuit connects and controls ptc heater;
Described air-conditioner controller is connected with power module, ptc heater respectively, and described power module respectivelyBe connected with PWM module, ptc heater.
2. electric automobile air conditioner control system according to claim 1, is characterized in that: also comprise temperatureDegree holding circuit, described temperature protection circuit is arranged between air-conditioner controller and ptc heater, and respectivelyBe connected with ptc heater with air-conditioner controller.
3. electric automobile air conditioner control system according to claim 1, is characterized in that: also comprise and continuingElectrical equipment, described relay is arranged between power module and PWM module, and is connected with PWM module,Described air-conditioner controller connects and control relay.
4. electric automobile air conditioner control system according to claim 1, is characterized in that: also comprise temperatureDegree sensor, described temperature sensor is arranged in electric automobile, and described single-chip microcomputer is connected with temperature sensorConnect.
5. electric automobile air conditioner control system according to claim 1, is characterized in that: described PTCThe quantity of heater is four, and four ptc heaters are parallel with one another, and described PWM module is driven by timesharingFour ptc heaters of moving control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620005580.8U CN205255939U (en) | 2016-01-04 | 2016-01-04 | Electric automobile air conditioning control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620005580.8U CN205255939U (en) | 2016-01-04 | 2016-01-04 | Electric automobile air conditioning control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205255939U true CN205255939U (en) | 2016-05-25 |
Family
ID=55997486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620005580.8U Expired - Fee Related CN205255939U (en) | 2016-01-04 | 2016-01-04 | Electric automobile air conditioning control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205255939U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112937252A (en) * | 2021-01-28 | 2021-06-11 | 浙江合众新能源汽车有限公司 | Method for designing PTC energy-saving control logic of wind side of electric air conditioner |
-
2016
- 2016-01-04 CN CN201620005580.8U patent/CN205255939U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112937252A (en) * | 2021-01-28 | 2021-06-11 | 浙江合众新能源汽车有限公司 | Method for designing PTC energy-saving control logic of wind side of electric air conditioner |
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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: 20160525 Termination date: 20200104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |