CN106671727A - Electric vehicle air conditioner controller and control method - Google Patents
Electric vehicle air conditioner controller and control method Download PDFInfo
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- CN106671727A CN106671727A CN201510752171.4A CN201510752171A CN106671727A CN 106671727 A CN106671727 A CN 106671727A CN 201510752171 A CN201510752171 A CN 201510752171A CN 106671727 A CN106671727 A CN 106671727A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
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Abstract
The invention discloses an electric vehicle air conditioner controller and a control method, wherein the electric vehicle air conditioner controller comprises a controller module and a control panel; the controller module comprises a main control module, a data collecting module, an output module and a communication module; and the main control module has functions such as a parameter setting function, a parameter adjusting function, an output controlling function and a fault processing function. On the basis of the controller, the control method sets each parameter of an electric vehicle air conditioner, adjusts each parameter of the electric vehicle air conditioner, processes faults of the electric vehicle air conditioner and intelligently controls the electric vehicle air conditioner. The electric vehicle air conditioner controller has the characteristics of universality, reliability and flexible combination.
Description
Technical field
The invention belongs to electric automobile air conditioner technical field, more specifically, it relates to a kind of controller of air conditioner of electric automobile and control method.
Background technology
In recent years, oil crisis and it is on the rise the problems such as environmental pollution so that it is more and more important that the development of electric automobile becomes.Air conditioning system on orthodox car obtains power from internal combustion engine, and using mechanical commprssor, dependent formula drives rotating speed to be limited by internal-combustion engine rotational speed, and car room thermic load is big；Electric air-conditioning system on electric automobile is originated using battery as energy, it is impossible to which, using internal combustion engine as the driver part of air-conditioning, using motor compressor, car room thermic load is little.Change in terms of these causes electric automobile air-conditioning system from all using conventional air conditioning system components and control method, notification number is the Chinese patent of the A of CN 103912961, disclose the control method and device of a kind of electric automobile convertible frequency air-conditioner, the running of air-conditioning is controlled using a controller for meeting CAN2.0B agreements, resource-sharing and information mutual communication can be carried out by CAN buses with in-car others system, method for controlling frequency conversion reduces system energy consumption, improves comfortableness.
But, current electric automobile type is more and more, the difference of interior spatial structure and volume, the type and specific operational factor of the electric air-conditioning required for causing is different, and this has not been allowed using the electric air-conditioning controlled with a controller in various electric automobiles.Therefore, the controller that above-mentioned patent is provided, situation changeable at present cannot be met, meanwhile, the controller that the patent is provided is more traditional in control mode, except data communication aspect, it is tantamount to the control mode of conventional air conditioning for automobiles so that electric air-conditioning can not adjust its running status according to practical situation, causes unreasonable to in-car environmental Kuznets Curves.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of controller of air conditioner of electric automobile and control method, with general, reliability and the characteristics of flexible combination, AC compressor refrigeration system and the class of direct current compressor refrigeration system two can be constituted in the case where hardware is constant, by the controllable single compressor of the levelling of parameter or two compressors, composition single-cooling type air-conditioning or refrigerating and heating type air-conditioning under each class.
For achieving the above object, the invention provides following technical scheme：
A kind of controller of air conditioner of electric automobile, including controller module and control panel, the controller module includes main control module, data acquisition module, output module and communication module；The main control module includes：
Parameter setting unit, is communicated by CAN with control panel, with the expectation operational factor that basis sets electric air-conditioning from the operational order of control panel；
Parameter adjustment unit, the change of the environment for being located according to electric air-conditioning adjusts the control parameter of its foundation；
Control unit, to the control parameter provided according to parameter adjustment unit, and the data message collected with reference to the expectation operational factor and data acquisition module carries out Data Analysis Services, generates corresponding control instruction；
Fault processing unit, to according to data collecting module collected to data message make breakdown judge, generate corresponding control instruction and fault message；
Control instruction is converted into corresponding controlled output by the output module, to change the running status of controlled device.
Further, the data acquisition module includes temperature detecting module, voltage detection module and switching value module；The output module includes relay output module and PWM output modules；The communication module includes RS485 interfaces, CAN interface.
Further, the expectation operational factor includes：Predetermined current environmental temperature, shut down operation and operation of starting shooting.
Further, the control parameter includes：The quantity of compressor, fresh air cycle of operation, heating and defrosting time, the enable of the port of switching value module and forbidden energy, the port of temperature detecting module are enabling and forbidden energy, compressor rotary speed, condensation rotating speed and rapid steamer rotating speed according to circumstances.
The present invention also provides a kind of electric automobile air conditioner control method, including：
Parameter tuning step, the environment being located according to electric air-conditioning adjusts the control parameter of its foundation；
Parameter setting step, according to being currently needed for, sets in real time the expectation operational factor of electric air-conditioning；
Data collection steps, gather the current operating parameter and ambient parameter of each controlled device, and generate corresponding data message；
Controlled output step, based on the control parameter, and combination expects that the data message that operational factor and data acquisition module are generated carries out Data Analysis Services, and to control corresponding controlled device according to result running status is changed；
Fault handling steps, breakdown judge is made to data message, and exports corresponding control instruction and fault message by output control module and communication module；
Further, also including temperature difference rate-determining steps, including：
Design temperature is divided into into the different region of width from the poor Tx of vehicle interior temperature, when current Tx is in different regions, compressor is controlled and is run with different rotating speeds.
Further, the temperature difference rate-determining steps also include：
When Tx is shifted between two adjacent regions, after control compressor runs the scheduled time under the setting speed of current region, then operation under the setting speed in next region is transferred to.
Further, the fault handling steps include：
The system failure is divided into into catastrophe failure, generic failure and minor failure；Wherein,
When catastrophe failure is detected, control refrigeration system is out of service, and reports failure；
When generic failure is detected, control refrigeration system reports failure with predetermined period intermittent duty；
When minor failure is detected, control refrigeration system is normally run, and reports failure.
Compared with prior art, it is an advantage of the invention that：Controller can be according to the change of electric air-conditioning, including environmental change and the electric automobile being arranged on change of itself etc., to change the execution parameter of controller, that is the control parameter of electric air-conditioning institute foundation, so as to enable the controller to control the electric air-conditioning in various electric automobiles, avoid controller to follow the change of electric air-conditioning and the change on the hardware aspects such as circuit module occurs, reduce use cost, it also avoid the debugging trouble in later stage.
Description of the drawings
Fig. 1 is the control principle drawing of the present invention；
Fig. 2 to Fig. 4 is the circuit diagram of control panel in the present invention；
Fig. 5 to Figure 10 is the circuit diagram of controller module in the present invention；
Reference：1, first single-chip microcomputer, 2, first CAN interface, 3, one 485 interface, 4, voice cue module, 5, watchdog module, 6, power module, 7, display module, 8, key-press module, 9, second singlechip, 10, PWM output modules, 11, relay output module, 12, 2nd 485 interface, 13, second CAN interface, 14, 3rd 485 interface, 15, data acquisition module, 16, temperature sensor sampling interface, 17, master board power supply output interface, 18, master board power detecting and control module, 19, blower fan system power detecting module.
Specific embodiment
A kind of controller of air conditioner of electric automobile that the present invention is provided, including two parts of controller module and control panel, both are communicated to connect by CAN.
A kind of controller of air conditioner of electric automobile that the present invention is provided, including two parts of controller module and control panel, both are communicated to connect by CAN.
Fig. 1 to Fig. 3 shows the circuit module figure of control panel, control panel includes the first single-chip microcomputer 1, the first CAN interface, the one 485 interface, voice cue module 4, watchdog module 5, power module 6, display module 7, key-press module 8, temperature sensor sampling interface 16 and main controller module power supply output interface 17, wherein, main controller module power supply output interface is used to operate to control the on/off of main controller module, temperature sensor sampling interface 16 using key-press module 8 on the control panel.
With reference to Fig. 2, model NUC140-LQFP64 of the first single-chip microcomputer 1, watchdog module 5 is used to prevent the program fleet inside single-chip microcomputer, speech rendering module includes buzzer B1, for sending auditory tone cueses, power module 6 be used for by vehicle-mounted 24VDC Power converts for control panel working power VCC
With reference to Fig. 3, the first CAN interface is made up of high-speed CAN transceiver, and its model TJA1050, the first single-chip microcomputer 1 is connected by the CAN transceiver with the CAN of electric automobile, and the one 485 interface is 485 conventional interface circuits, be will not be described here.
With reference to Fig. 4, display module 7 includes some LEDs and one piece 47 segmentation charactrons, the charactron includes 6 button K1-K6 by key-press module 8, and its corresponding function is respectively " upper operation ", " lower operation ", " Xingfeng capsule ", " setting ", " wind speed selection ", " activate switch ".
Fig. 5 to Figure 10 shows the circuit diagram of controller module, and controller module includes main control module, data acquisition module 15, PWM output modules 10 and communication module.
With reference to Fig. 5, main control module is realized using one piece of second singlechip 9, its model NUC140-LQFP64, and specifically, main control module functionally mainly includes following functional unit, is respectively：Parameter setting unit, parameter adjustment unit, control unit and fault processing unit.Wherein,
Parameter setting unit is communicated by CAN with control panel, and with the expectation operational factor that basis sets electric air-conditioning from the operational order of control panel, such as operator set an expectation ambient temperature inside current electric automobile by control panel（Can refer to the mode of operation of domestic air conditioning）, the expectation operational factor can be above-mentioned expectation ambient temperature, can also be switching on and shutting down operational order etc.；
Parameter adjustment unit is used for the control parameter that the change of the environment being located according to electric air-conditioning adjusts its foundation, and the control parameter includes：The quantity of compressor, fresh air cycle of operation, heating and defrosting time, the enable of the port of switching value module and forbidden energy, the port of temperature detecting module enables and forbidden energy, compressor rotary speed, condensation rotating speed and rapid steamer rotating speed according to circumstances.Parameter adjustment is in order that controller can adapt to the change of various electric air-conditionings, so as to adopt Parametric designing to the software of controller, by changing corresponding control parameter, can just make controller that there is the control function for different electric air-conditionings, such as, select any number of temperature sensor effective or invalid by the quantity of forbidden energy or the port for enabling temperature detecting module；Double-compressor pattern or single compressor pattern are selected, i.e., controls 2 compressors or 1 compressor simultaneously；Any number of selection of switching value（Principle is identical with the selection of temperature sensor）；The adjustment of the control parameter of rotating speed, condensation fan rotating speed and evaporation fan rotating speed to compressor；Adjustment to heating and defrosting parameter is suitable for the requirement of different refrigeration systems, makes defrosting more accurately and timely, improves the comfortableness of air-conditioning heating operation；According to setting of the practical situation to the operation same period of VMC (Ventilation Mechanical Control System), make more comfortable inside electric automobile.Therefore, based on the modification to above-mentioned control parameter, the practical significance of parameter adjustment unit is versatility, reliability and the combination motility for realizing controller, same controller is enabled to be applied to different electric air-conditionings, in configuration, only need to change above-mentioned control parameter according to the practical situation of electric air-conditioning by attendant, allow controller to reach with various electric air-conditionings and be perfectly adapted to.
Control unit is to the control parameter that provided according to parameter adjustment unit, and combination expects that the data message that operational factor and data acquisition module 15 are collected carries out Data Analysis Services, generate corresponding control instruction, control instruction is converted into corresponding controlled output by PWM output modules 10, with to each controlled device（Compressor, condensation are according to circumstances etc.）Carry out corresponding control operation.
Fault processing unit makes breakdown judge to the data message collected according to data acquisition module 15, certain portion temperature for electric air-conditioning for example occur is too high, or the failure such as the operation of the equipment such as compressor, blower fan is abnormal, now fault processing unit will generate corresponding control instruction and fault message, control instruction is converted into corresponding controlled output by PWM output modules 10, with to each controlled device（Compressor, condensation are according to circumstances etc.）Carry out corresponding control operation；And fault message is sent to control panel by CAN, and the display module 7 in control panel shows.
With reference to Fig. 6 and Fig. 7, PWM output modules 10 include relay PWM output modules 10 and PWMPWM output modules 10, wherein, Fig. 5 is PWMPWM output modules 10, equipment is connected with the blower fan in electric air-conditioning etc. for it, to realize that controller controls the said equipment by way of PWM speed governing.Fig. 6 is relay PWM output modules 10, and controller directly sends switching manipulation instruction to relay PWM output modules 10, to control the start and stop of each equipment.
With reference to Fig. 8, communication module includes the 2nd RS485 interfaces, the 3rd RS485 interfaces and the second CAN interface, 2nd RS485 interfaces and control panel are communicated, the 3rd RS485 interfaces and the second CAN interface regard refrigeration system using compressor difference respectively with direct current compressor or AC compressor（Converter）.
With reference to Fig. 9, Figure 10, data acquisition module 15 includes temperature detecting module, voltage detection module, switching value module and blower fan system power detecting module 19.Because the operation principle of data acquisition module 15 is technology well known to those skilled in the art, therefore repeat no more.
The present invention also provides a kind of electric automobile air conditioner control method, including：
Parameter tuning step, the environment being located according to electric air-conditioning adjusts the control parameter of its foundation；
Parameter setting step, according to being currently needed for, sets in real time the expectation operational factor of electric air-conditioning；
Data collection steps, gather the current operating parameter and ambient parameter of each controlled device, and generate corresponding data message；
Controlled output step, based on control parameter, and combination expects that the data message that operational factor and data acquisition module 15 are generated carries out Data Analysis Services, and to control corresponding controlled device according to result running status is changed；
Fault handling steps, breakdown judge is made to data message, and exports corresponding control instruction and fault message by output control module and communication module.
In one embodiment, for the control method of electric air-conditioning also includes temperature difference rate-determining steps, the different region of width is divided into including by design temperature from the poor Tx of vehicle interior temperature, when current Tx is in different regions, control compressor is run with different rotating speeds, run at different temperature with same rotating speed so as to avoid compressor, reach the purpose of energy-conservation.In addition, when Tx is shifted between two adjacent regions, temperature in such as electric automobile is raised and lowered suddenly, after now then control compressor runs the scheduled time under the setting speed of current region, it is transferred to again under the setting speed in next region and runs, the benefit for so arranging is the change rotating speed that can reduce high frequent, so that refrigeration system pressure change is relatively gentle, be conducive to the energy-saving run of refrigeration system, be particularly suited for the new energy vehicle in the public transport field as buses.
In one embodiment, above-mentioned fault handling steps include：The system failure is divided into into catastrophe failure, generic failure and minor failure.Wherein, catastrophe failure includes too high or too low supply voltage, compressor, condensation fan, evaporation fan failure, refrigeration system pressure fault etc., and when catastrophe failure is detected, control refrigeration system is out of service, and reports failure；Generic failure is including temperature sensor fault etc., when generic failure is detected, controller then controls refrigeration system with predetermined period intermittent duty, and failure is reported, wherein the predetermined cycle can be the refrigerating operaton T1 times, then stop the T2 times, T1 should be more than T2, such as T1 is 20 minutes, and T2 is 5 minutes, and the present embodiment is not construed as limiting；Minor failure includes condensation temperature sensor fault etc. during refrigeration, and when minor failure is detected, the refrigeration system that controller then controls continues to keep normal operation, and reports failure.By using above-described failure modes way to manage, greatly improve the effective run time of system, contradiction between having buffered vehicle operation and having keeped in repair, if using traditional troubleshooting mode, that is typically all when there is any failure, directly just stop refrigeration system, such mode can cause in electric automobile（Particularly buses）In motion, it is impossible to continue to freeze, in burning hot summer, make troubles to passenger.And adopt after troubleshooting mode provided by the present invention, when above-mentioned generic failure or minor failure is run into, refrigeration system can also be allowed to work on, as soon as so as to avoid breaking down, stop the situation of refrigeration system, because generic failure and minor failure, obvious potential safety hazard can't be brought to refrigeration system at once, only when there is catastrophe failure, just need to stop electric air-conditioning immediately, it is to avoid real potential safety hazard.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-described embodiment, and all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of controller of air conditioner of electric automobile, including controller module and control panel, the controller module includes main control module, data acquisition module, output module and communication module；It is characterized in that, the main control module includes：
Parameter setting unit, is communicated by CAN with control panel, with the expectation operational factor that basis sets electric air-conditioning from the operational order of control panel；
Parameter adjustment unit, the change of the environment for being located according to electric air-conditioning adjusts the control parameter of its foundation；
Control unit, to the control parameter provided according to parameter adjustment unit, and the data message collected with reference to the expectation operational factor and data acquisition module carries out Data Analysis Services, generates corresponding control instruction；
Fault processing unit, to according to data collecting module collected to data message make breakdown judge, generate corresponding control instruction and fault message；
Control instruction is converted into corresponding controlled output by the output module, to change the running status of controlled device.
2. controller of air conditioner of electric automobile according to claim 1, is characterized in that, the data acquisition module includes temperature detecting module, voltage detection module and switching value module；The output module includes relay output module and PWM output modules；The communication module includes RS485 interfaces, CAN interface.
3. controller of air conditioner of electric automobile according to claim 2, is characterized in that, the expectation operational factor includes：Predetermined current environmental temperature, shut down operation and operation of starting shooting.
4. controller of air conditioner of electric automobile according to claim 2, is characterized in that, the control parameter includes：The quantity of compressor, fresh air cycle of operation, heating and defrosting time, the enable of the port of switching value module and forbidden energy, the port of temperature detecting module are enabling and forbidden energy, compressor rotary speed, condensation rotating speed and rapid steamer rotating speed according to circumstances.
5. a kind of electric automobile air conditioner control method based on the controller of air conditioner of electric automobile described in claim 1, is characterized in that, including：
Parameter tuning step, the control parameter for changing its foundation of the environment adjustment being located according to electric air-conditioning；
Parameter setting step, according to being currently needed for, sets in real time the expectation operational factor of electric air-conditioning；
Data collection steps, gather the current operating parameter and ambient parameter of each controlled device, and generate corresponding data message；
Controlled output step, based on the control parameter, and combination expects that the data message that operational factor and data acquisition module are generated carries out Data Analysis Services, and to control corresponding controlled device according to result running status is changed；
Fault handling steps, breakdown judge is made to data message, and exports corresponding control instruction and fault message by output control module and communication module；
Electric automobile air conditioner control method according to claim 5, is characterized in that, also including temperature difference rate-determining steps, including：
Design temperature is divided into into the different region of width from the poor Tx of vehicle interior temperature, when current Tx is in different regions, compressor is controlled and is run with different rotating speeds.
6. electric automobile air conditioner control method according to claim 6, is characterized in that, the temperature difference rate-determining steps also include：
When Tx is shifted between two adjacent regions, after control compressor runs the scheduled time under the setting speed of current region, then operation under the setting speed in next region is transferred to.
7. electric automobile air conditioner control method according to claim 5, is characterized in that, the fault handling steps include：
The system failure is divided into into catastrophe failure, generic failure and minor failure；Wherein,
When catastrophe failure is detected, control refrigeration system is out of service, and reports failure；
When generic failure is detected, control refrigeration system reports failure with predetermined period intermittent duty；
When minor failure is detected, control refrigeration system is normally run, and reports failure.
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| CN112406466A (en) * | 2020-11-18 | 2021-02-26 | 珠海格力电器股份有限公司 | Equipment fault processing device and method and air conditioner |
| CN114545805A (en) * | 2020-11-24 | 2022-05-27 | 中国航发商用航空发动机有限责任公司 | Method, device and system for online adjustment of control parameters of aircraft engine |
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