CN104553673A - Vehicle-mounted direct-current air regulating system and control method thereof - Google Patents
Vehicle-mounted direct-current air regulating system and control method thereof Download PDFInfo
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- CN104553673A CN104553673A CN201410817458.6A CN201410817458A CN104553673A CN 104553673 A CN104553673 A CN 104553673A CN 201410817458 A CN201410817458 A CN 201410817458A CN 104553673 A CN104553673 A CN 104553673A
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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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- 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
- B60H1/00421—Driving arrangements for parts of a vehicle air-conditioning
- B60H1/00428—Driving arrangements for parts of a vehicle air-conditioning electric
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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
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a vehicle-mounted direct-current air regulating system. The vehicle-mounted direct-current air regulating system comprises a photovoltaic component for generating direct-current power, energy storage equipment and a direct-current air regulator as well as a photovoltaic inverter which is connected with the photovoltaic component, the energy storage equipment and the direct-current air regulator, wherein the photovoltaic inverter comprises a start-up switch, a charge and discharge two-way circuit, a DC/DC converter and a controller. One end of the charge and discharge two-way circuit is connected with the photovoltaic component, the other end of the charge and discharge two-way circuit is connected with the energy storage equipment; one end of the DC/DC converter is connected with one end of the photovoltaic component and one end of the charge and discharge two-way circuit respectively, and the other end of the DC/DC converter is connected with the direct-current air regulator; the controller is connected with the charge and discharge two-way circuit and the DC/DC converter respectively, and used for controlling the charge and discharge two-way circuit and the DC/DC converter according to a state of the start-up switch, output voltage of the photovoltaic component as well as end voltage and capacity of the energy storage equipment so as to improve comfort in a car cab and reduce consumption of fuel oil and emission of waste gas. The invention further discloses a control method for the vehicle-mounted direct-current air regulating system.
Description
Technical field
The present invention relates to mobile unit field, particularly the control method of a kind of Vehicular direct-current air conditioner system and a kind of Vehicular direct-current air conditioner system.
Background technology
In summer, automobile cab can be become a small furnace by scorching of the sun, especially after parking, if do not have air-conditioning, is difficult to have a rest in operator's compartment.
At present, the automobile of China 99% uses and carries air-conditioning, and carrying air-conditioning is driven by automotive engine, general only use in driving way, and between the automobile down-time period, want the comfort level ensureing vehicle drive indoor, automotive engine must be in operative condition and provide power for carrying air-conditioning, but can cause unnecessary waste like this, particularly for high-powered lorry and trailer, independent startup carries air-conditioning and makes consumption of fuel larger.
In order to solve the problem, there are two kinds of auxiliary automotive air-conditioning systems: one adopts gasoline engine generator to provide power to carrying air-conditioning in correlation technique, but this automotive air-conditioning system still needs gasoline as fuel, there is the shortcoming that aerial contamination is heavy, cost is high, and gasoline engine generator is easy to damage due to frequent starting; Another kind adopts small diesel engine to provide power to carrying air-conditioning, although fault rate can be lower, same existence needs fuel oil, pollutes heavy and that cost is high shortcoming.Therefore, when automobile rests and night stops transport, the air regulation in operator's compartment and the problem of traveling comfort are never well solved.
Summary of the invention
The present invention is intended to solve one of technical matters in correlation technique at least to a certain extent.
For this reason, one object of the present invention is to propose one when automobile rests or night stops transport, and can not only ensure the traveling comfort in operator's compartment, and can reduce the Vehicular direct-current air conditioner system of fuel oil consumption and exhaust emission.
Another object of the present invention is the control method proposing a kind of Vehicular direct-current air conditioner system.
For achieving the above object, one aspect of the present invention embodiment proposes a kind of Vehicular direct-current air conditioner system, comprising: photovoltaic module, for generating direct current (DC); Energy storage device and direct current air regulating control; The photovoltaic converter be connected with described direct current air regulating control with described photovoltaic module, described energy storage device, described photovoltaic converter comprises: starting switch; Discharge and recharge circuit worked on up and down bias, one end of described discharge and recharge circuit worked on up and down bias is connected with described photovoltaic module, and the other end of described discharge and recharge circuit worked on up and down bias is connected with described energy storage device; DC/DC changer, one end of described DC/DC changer is connected respectively with described photovoltaic module one end with described discharge and recharge circuit worked on up and down bias, and the other end of described DC/DC changer is connected with described direct current air regulating control; Controller, described controller is connected with described DC/DC changer with described discharge and recharge circuit worked on up and down bias respectively, controls described discharge and recharge circuit worked on up and down bias and described DC/DC changer for the output voltage of the state according to described starting switch, described photovoltaic module and the terminal voltage of described energy storage device and capacity.
According to the Vehicular direct-current air conditioner system of the embodiment of the present invention, discharge and recharge circuit worked on up and down bias and DC/DC changer are controlled, to improve the traveling comfort of vehicle drive indoor according to the terminal voltage of the state of starting switch, the output voltage of photovoltaic module and energy storage device and capacity by controller.Further, in the Vehicular direct-current air conditioner system of the embodiment of the present invention, owing to adopting photovoltaic module to power to energy storage device and direct current air regulating control, the consumption of fuel oil and the discharge of waste gas is decreased.In addition, in Vehicular direct-current air conditioner system, owing to adopting direct current air regulating control, decrease the inversion link in transformation of electrical energy, improve the degree of utilization of electric energy and the flying power of energy storage device.
Wherein, the mode of operation of described direct current air regulating control comprise daytime powerful pattern and night energy saver mode.
According to one embodiment of present invention, when described starting switch is not unlocked, described controller, when the output voltage of described photovoltaic module is greater than default minimum, controls described discharge and recharge circuit worked on up and down bias and makes described photovoltaic module be the charging of described energy storage device.
Wherein, according to one embodiment of present invention, when the terminal voltage of described energy storage device is greater than predetermined voltage threshold, it is the charging of described energy storage device that described controller controls described discharge and recharge circuit worked on up and down bias with constant voltage floating charge charging modes; When the terminal voltage of described energy storage device is less than or equal to described predetermined voltage threshold, it is the charging of described energy storage device that described controller controls described discharge and recharge circuit worked on up and down bias in constant-current charge mode.
According to one embodiment of present invention, when described starting switch is unlocked, if the capacity of described energy storage device is more than or equal to lower limit capacity threshold value, then start described discharge and recharge circuit worked on up and down bias and described DC/DC changer is that described direct current air regulating control is powered by described energy storage device; If the capacity of described energy storage device is less than described lower limit capacity threshold value, then limit the start of described direct current air regulating control.
According to one embodiment of present invention, described energy storage device is Vehicular accumulator cell and super capacitor.
According to one embodiment of present invention, described default minimum is the final discharging voltage of described Vehicular accumulator cell.
According to one embodiment of present invention, described predetermined voltage threshold is 1.125-1.15 times of the Vehicular accumulator cell rated voltage in described energy storage device.
According to one embodiment of present invention, described lower limit capacity threshold value is 50% of described energy storage device rated capacity.
For achieving the above object, the present invention on the other hand embodiment proposes a kind of control method of Vehicular direct-current air conditioner system, wherein, described Vehicular direct-current air conditioner system comprises for generating galvanic photovoltaic module, energy storage device, direct current air regulating control and with described photovoltaic module, the photovoltaic converter that described energy storage device is connected with described direct current air regulating control, wherein, described photovoltaic converter comprises starting switch, discharge and recharge circuit worked on up and down bias and DC/DC changer, described control method comprises the following steps: the state detecting described starting switch, and detect the output voltage of photovoltaic module and the terminal voltage of described energy storage device and capacity, according to the terminal voltage of the state of described starting switch, the output voltage of described photovoltaic module and described energy storage device and capacity, described discharge and recharge circuit worked on up and down bias and described DC/DC changer are controlled.
According to the control method of the Vehicular direct-current air conditioner system of the embodiment of the present invention, first the state of starting switch is detected, and detect the output voltage of photovoltaic module and the terminal voltage of energy storage device and capacity, then according to the terminal voltage of the state of starting switch, the output voltage of photovoltaic module and energy storage device and capacity, discharge and recharge circuit worked on up and down bias and DC/DC changer are controlled.Therefore, the control method of the Vehicular direct-current air conditioner system of the embodiment of the present invention, according to the terminal voltage of the state of starting switch, the output voltage of photovoltaic module and energy storage device and capacity, the traveling comfort improving vehicle drive indoor is controlled to discharge and recharge circuit worked on up and down bias and DC/DC changer, reduce the consumption of fuel oil and the discharge of waste gas.
According to one embodiment of present invention, when described starting switch is not unlocked, if the output voltage of described photovoltaic module is greater than default minimum, then controls described discharge and recharge circuit worked on up and down bias and make described photovoltaic module be the charging of described energy storage device.
According to one embodiment of present invention, controlling described discharge and recharge circuit worked on up and down bias makes described photovoltaic module be the charging of described energy storage device, specifically comprise: when the terminal voltage of described energy storage device is greater than predetermined voltage threshold, controlling described discharge and recharge circuit worked on up and down bias with constant voltage floating charge charging modes is the charging of described energy storage device; When the terminal voltage of described energy storage device is less than or equal to described predetermined voltage threshold, controlling described discharge and recharge circuit worked on up and down bias in constant-current charge mode is the charging of described energy storage device.
According to one embodiment of present invention, when described starting switch is unlocked, if the capacity of described energy storage device is more than or equal to lower limit capacity threshold value, then start described discharge and recharge circuit worked on up and down bias and described DC/DC changer is that described direct current air regulating control is powered by described energy storage device; If the capacity of described energy storage device is less than described lower limit capacity threshold value, then limit the start of described direct current air regulating control.
Wherein, the mode of operation of described direct current air regulating control comprise daytime powerful pattern and night energy saver mode.
Accompanying drawing explanation
Fig. 1 is the block diagram of Vehicular direct-current air conditioner system according to an embodiment of the invention.
Fig. 2 is the control flow chart of Vehicular direct-current air conditioner system according to an embodiment of the invention.
Fig. 3 is the model selection diagram of circuit of direct current air regulating control according to an embodiment of the invention.
Fig. 4 is the diagram of circuit of the control method of Vehicular direct-current air conditioner system according to the embodiment of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it " on " structure can comprise the embodiment that the first and second features are formed as directly contact, also can comprise other feature and be formed in embodiment between the first and second features, such first and second features may not be direct contacts.
In describing the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
Below with reference to the accompanying drawings the Vehicular direct-current air conditioner system of the embodiment of the present invention and the control method of Vehicular direct-current air conditioner system are described.
Fig. 1 is the block diagram of Vehicular direct-current air conditioner system according to an embodiment of the invention.As shown in Figure 1, this Vehicular direct-current air conditioner system comprises: photovoltaic module 100, photovoltaic converter 200, energy storage device 300 and direct current air regulating control 400.
Wherein, photovoltaic module 100 is for generating direct current (DC), photovoltaic converter 200 and photovoltaic module 100, energy storage device 300 is connected with direct current air regulating control 400, and, photovoltaic converter 200 comprises: starting switch (not specifically illustrating in figure), discharge and recharge circuit worked on up and down bias 201, DC/DC changer 202 and controller 203, wherein, one end of discharge and recharge circuit worked on up and down bias 201 is connected with photovoltaic module 100, the other end of discharge and recharge circuit worked on up and down bias 201 is connected with energy storage device 300, one end of DC/DC changer 202 is connected respectively with photovoltaic module 100 one end with discharge and recharge circuit worked on up and down bias 201, the other end of DC/DC changer 202 is connected with direct current air regulating control 400, controller 203 is connected with DC/DC changer 202 with discharge and recharge circuit worked on up and down bias 201 respectively, for the state according to starting switch, the output voltage of photovoltaic module 100 and the terminal voltage of energy storage device 300 and capacity control discharge and recharge circuit worked on up and down bias 201 and DC/DC changer 202.
According to one embodiment of present invention, energy storage device 300 is Vehicular accumulator cell 301 and super capacitor 302, and is connected in parallel by inductance L.
Particularly, photovoltaic module 100 can be arranged on the top of automobile cab top and/or automobile bodies, and changing solar power into electric energy by photoelectric conversion provides direct current (DC) to the energy storage device 300 in Vehicular direct-current air conditioner system and/or direct current air regulating control 400.
Photovoltaic converter 200 is the core of transformation of electrical energy in Vehicular direct-current air conditioner system, can be arranged on vehicle drive indoor.To be the unstable direct current (DC) that exported by photovoltaic module 100 according to the requirement of program design be transformed to meet its radical function to charge to energy storage device 300 and the stable DC electricity of the normal work of direct current air regulating control 400, simultaneously, photovoltaic converter 200 is also responsible for the electric energy stored in energy storage device 300 being discharged supply direct current air regulating control 400 and is used, in addition, photovoltaic converter 200 also has the automatic charging management function to energy storage device 300.
Energy storage device 300 can be installed on the below of car body, daytime, energy storage device 300 is operated in charge condition, the direct current (DC) that photovoltaic module 100 exports is stored, and when automobile rests and night stops transport, energy storage device 300 is operated in discharge regime, exports direct current (DC) and uses to direct current air regulating control 400.In an embodiment of the present invention, Vehicular accumulator cell 301 in energy storage device 300 and super capacitor 302 are connected in parallel by inductance L, wherein, Vehicular accumulator cell 301 can store most electric energy, meet the needs that night, direct current air regulating control 400 worked long hours, and super capacitor 302 assisting and supplementing as Vehicular accumulator cell 301, mainly when direct current air regulating control 400 is in fast-refrigerating or heats, provide High-current output in short-term.
Direct current air regulating control 400 is use electric loads main in whole Vehicular direct-current air conditioner system, be responsible for the function providing ventilation to automobile cab, freeze or heat, improve the traveling comfort of vehicle drive indoor, and the direct current (DC) that direct current air regulating control 400 can directly utilize photovoltaic module 100 to export, without the need to inversion link, both improve the degree of utilization of electric energy and the flying power of energy storage device, again reduce cost.Direct current air regulating control 400 comprises interior machine 401 and outer machine 402, wherein, interior machine 401 is installed on the inside of automobile cab, outer machine 401 is installed on the outside of automobile cab or the top of automobile bodies, and, direct current air regulating control 400 is provided with two kinds of mode of operations: daytime powerful pattern and night energy saver mode, these two kinds of patterns artificially can be set by remote controller, also which mode of operation can be entered by photosensor according to the intensity automatic decision of light, it is pointed out that the pattern of priority higher than automatic decision of artificial setting mode of operation.
Further, the galvanic voltage range that photovoltaic module 100 provides is 20-40V, and power range is 300-500W.
Photovoltaic converter 200 comprises starting switch, discharge and recharge circuit worked on up and down bias 201, DC/DC changer 202 and controller 203, wherein, the radical function of discharge and recharge circuit worked on up and down bias 201 carries out discharge and recharge to energy storage device 300, when direct current air regulating control 400 does not work, energy storage device 300 is in charge condition, and the direct current (DC) that photovoltaic module 100 exports is stored in energy storage device 300 by discharge and recharge circuit worked on up and down bias 201; When direct current air regulating control 400 works, energy storage device 300 is in discharge regime, and the electric energy in energy storage device 300 discharges and powers to direct current air regulating control 400 by discharge and recharge circuit worked on up and down bias 201.The radical function of DC/DC changer 202 is boosting and voltage stabilizing, the low-voltage DC that photovoltaic module 100 and/or energy storage device 300 export is boosted to and meets the normal voltage range worked of direct current air regulating control 400 as 150-260V, and maintain in this voltage range.Controller 203 is control cores of photovoltaic converter 200, radical function is the voltage U pv that sampled light photovoltaic assembly 100 exports, the electric current I pv that photovoltaic module 100 exports, the DC bus-bar voltage Udc that DC/DC changer 202 exports, the terminal voltage Ubat of the energy storage device 300 and capacity Q of energy storage device 300, then according to sampled value, discharge and recharge circuit worked on up and down bias 201 and DC/DC changer 202 are controlled, realize the automatic charging management of energy storage device 300 and the function to direct current air regulating control 400 power supply, particularly, as shown in Figure 1, controller 203 exports 4 road pwm signals, wherein two-way pwm signal is for the break-make of the device for power switching in control DC/DC changer 202, another two-way pwm signal is for controlling the break-make of the device for power switching in discharge and recharge circuit worked on up and down bias 201, and, controller 203 can decide the charge mode of energy storage device 300 when charge condition according to the capacity Q of energy storage device 300 received and at discharge regime time protecting control, prevent Vehicular accumulator cell 301 deep discharge, to improve the voltage of service life also needed for reserved vehicle sparking startup of Vehicular accumulator cell 301.
It is to be noted especially, the mode that the energy storage device 300 of the embodiment of the present invention adopts Vehicular accumulator cell 301 in parallel with super capacitor 302, adopts the advantage of this parallel way to be combine that Vehicular accumulator cell 301 capacity is large, flying power strong and super capacitor 302 meets heavy-current discharge and discharge and recharge advantage often in short-term.When temperature is higher or lower by day, when just having opened powerful pattern on daytime of direct current air regulating control 400, fast-refrigerating can be started or heat, to meet the requirement improving air themperature traveling comfort in automobile cab fast, in this case will require that energy storage device 300 has the ability exporting big current in short-term, at this moment super capacitor 302 just can give play to advantage; And at night, photovoltaic module 100 can not generate electricity, direct current air regulating control 400 has relied on energy storage device 300 to work completely, and now, Vehicular accumulator cell 301 feature capacious can just meet requirements.
In addition, powerful and night on the daytime that direct current air regulating control 400 has energy-conservation two kinds of mode of operations that direct current air regulating control 400 is used is easier, and it is high to have taken into account daytime temperature, need that refrigerating capacity is large or daytime temperature is low, need heating capacity large, and air governor 400 period of service is long night, need energy-conservation with the requirement improving energy storage device 300 flying power, therefore, powerful and night on the daytime that direct current air regulating control 400 has energy-conservation two kinds of mode of operations, ensure that traveling comfort under automobile cab high temperature on daytime and rely on separately the long-time continuous firing of energy storage device night.And, two kinds of mode of operations that direct current air regulating control 400 has artificially can be set by remote controller also by being arranged on photosensor automatic decision daytime on indoor set 401, night, can enter corresponding mode of operation automatically to control direct current air regulating control 400.Wherein, photosensor can be photoconductive cell.
According to one embodiment of present invention, when starting switch is not unlocked, controller 203, when the output voltage of photovoltaic module 100 is greater than default minimum, controls discharge and recharge circuit worked on up and down bias 201 and photovoltaic module 100 is charged for energy storage device 300.
Wherein, when the terminal voltage of energy storage device 300 is greater than predetermined voltage threshold, controller 203 controls discharge and recharge circuit worked on up and down bias 201 with constant voltage floating charge charging modes for energy storage device 300 charges; When the terminal voltage of energy storage device 300 is less than or equal to predetermined voltage threshold, controller 203 controls discharge and recharge circuit worked on up and down bias 201 in constant-current charge mode for energy storage device 300 charges.
According to one embodiment of present invention, when starting switch is unlocked, if the capacity of energy storage device 300 is more than or equal to lower limit capacity threshold value, then startup discharge and recharge circuit worked on up and down bias 201 and DC/DC changer 202 are powered for direct current air regulating control 400 by energy storage device 300; If the capacity of energy storage device 300 is less than lower limit capacity threshold value, then limits direct current air regulating control 400 and start shooting.
Preferably, default minimum is the final discharging voltage of Vehicular accumulator cell 301, and predetermined voltage threshold is 1.125-1.15 times of Vehicular accumulator cell 301 rated voltage in energy storage device 300, and lower limit capacity threshold value is 50% of energy storage device 300 rated capacity.
Particularly, first controller 203 judges whether the starting switch of photovoltaic converter 200 is opened, if starting switch is not unlocked, then start the discharge and recharge circuit worked on up and down bias 201 of energy storage device 300, controller 203 judges whether the voltage U pv that photovoltaic module 100 exports is greater than default minimum Upvlim, whether the voltage U pv that namely photovoltaic module 100 exports is greater than the final discharging voltage of Vehicular accumulator cell 301 as 21V, if the voltage U pv that photovoltaic module 100 exports is greater than default minimum Upvlim, then controller 203 controls discharge and recharge circuit worked on up and down bias 201 photovoltaic module 100 is charged for energy storage device 300, if the voltage U pv that photovoltaic module 100 exports is less than or equal to default minimum Upvlim, then controller 203 points out illumination not enough, and closes the discharge and recharge circuit worked on up and down bias 201 of energy storage device 300.
When controller 203 start discharge and recharge circuit worked on up and down bias 201 charge for energy storage device 300 time, first controller 203 judges whether the terminal voltage Ubat of energy storage device 300 is greater than predetermined voltage threshold Ubat_f, namely judge whether the terminal voltage Ubat of energy storage device 300 is greater than the 1.125-1.15 of Vehicular accumulator cell 301 rated voltage in energy storage device 300 doubly, if the terminal voltage Ubat of energy storage device 300 is greater than predetermined voltage threshold Ubat_f, then controller 203 controls discharge and recharge circuit worked on up and down bias 201 with constant voltage floating charge charging modes for energy storage device 300 charges; If the terminal voltage Ubat of energy storage device 300 is less than or equal to predetermined voltage threshold Ubat_f, then controller 203 controls discharge and recharge circuit worked on up and down bias 201 in constant-current charge mode for energy storage device 300 charges.
When starting switch is unlocked, first judge whether the capacity Q of energy storage device 300 is more than or equal to lower limit capacity threshold value Qlim, namely judge whether the capacity Q of energy storage device 300 is more than or equal to 50% of energy storage device 300 rated capacity, if the capacity Q of energy storage device 300 is more than or equal to lower limit capacity threshold value Qlim, then startup discharge and recharge circuit worked on up and down bias 201 and DC/DC changer 202 are powered for direct current air regulating control 400 by energy storage device 300; If the capacity Q of energy storage device 300 is less than lower limit capacity threshold value Qlim, then point out the electricity of energy storage device 300 not enough, restriction direct current air regulating control 400 is started shooting, thus protects energy storage device 300 and direct current air regulating control 400.
Further, as shown in Figure 2, the control process of Vehicular direct-current air conditioner system comprises the following steps:
S101, controller 203 judges whether starting switch is opened.If so, step S109 is performed; If not, step S102 is performed.
S102, starts discharge and recharge circuit worked on up and down bias 201.
S103, the terminal voltage Ubat of the voltage U pv that controller 203 sampled light photovoltaic assembly 100 exports and reservation facility 300.
S104, controller 203 judges whether the voltage U pv that photovoltaic module 100 exports is greater than default minimum Upvlim.If so, step S106 is performed; If not, step S105 is performed.
S105, controller 203 points out illumination not enough, closes discharge and recharge circuit worked on up and down bias 201.
S106, controller 203 judges whether the terminal voltage Ubat of reservation facility 300 is greater than predetermined voltage threshold Ubat_f.If so, step S108 is performed; If not, step S107 is performed.
S107, controller 203 controls discharge and recharge circuit worked on up and down bias 201 in constant-current charge mode for energy storage device 300 charges, and returns step S101, continues to judge.Wherein, charging current is 0.1C, and maximum charging current is 0.15C, it should be noted that, for the Vehicular accumulator cell of 100Ah, and 1C=100A.
S108, controller 203 controls discharge and recharge circuit worked on up and down bias 201 with constant voltage floating charge charging modes for energy storage device 300 charges, and returns step S101, continues to judge.
S109, judges whether the capacity Q of energy storage device 300 is more than or equal to lower limit capacity threshold value Qlim.If so, S110 is performed; If not, step S112 is performed.
S110, control circuit 203 starts discharge and recharge circuit worked on up and down bias 201 and DC/DC changer 202 is powered for direct current air regulating control 400 by energy storage device 300.
S111, the actual capacity Q of control circuit 203 Real-Time Monitoring energy storage device 300, and return step S109, continue to judge.
S112, controller 203 points out energy storage device 300 electricity not enough, and restriction direct current air regulating control 400 is started shooting.
S113, Vehicular direct-current air conditioner system proceeds to energy storage device 300 charge condition, and returns step S109, continues to judge.
Wherein, it is pointed out that predetermined voltage threshold Ubat_f can not exceed 1.167 times of Vehicular accumulator cell 301 rated voltage in energy storage device 300, otherwise Vehicular accumulator cell 301 can be in over voltage charge condition, affect the service life of Vehicular accumulator cell 301, and bring certain potential safety hazard.In addition, DOD (the Depth of Discharge of energy storage device 300 is depended in the setting of lower limit capacity threshold value Qlim, depth of discharge), according to the feature of Vehicular accumulator cell 301, the DOD of energy storage device 300 can be 40%-60%, preferably, in an embodiment of the present invention, lower limit capacity threshold value Qlim is 50% of energy storage device 300 rated capacity.
Known by above-mentioned control flow, Vehicular direct-current air conditioner system can when Illumination intensity be stronger by day, generated electricity by photovoltaic module 100, when direct current air regulating control 400 does not run, the direct current (DC) that photovoltaic module 100 exports is stored in energy storage device 300, and be divided into the process of charging of energy storage device 300: constant-current charge and constant voltage floating charge charging two stages, so both accelerate the charging rate of energy storage device 300, the service life of Vehicular accumulator cell 301 in energy storage device 300 can be improved again.
According to one embodiment of present invention, the mode of operation of direct current air regulating control comprise daytime powerful pattern and night energy saver mode.Because direct current air regulating control 400 has energy-conservation two kinds of mode of operations at powerful and night on daytime, and the selection of these two kinds of mode of operations and switching artificially can be set by remote controller, if not by artificial setting, then can by the mode of operation of photosensor automatic decision direct current air regulating control 400.Wherein, artificially set the pattern of priority higher than automatic decision of the mode of operation of direct current air regulating control 400 by remote controller, concrete model selection flow process as shown in Figure 3:
S201, judges whether the mode of operation artificially being set direct current air regulating control 400 by remote controller.If so, step S202 is performed; If not, step S203 is performed.
S202, artificially sets the mode of operation of direct current air regulating control 400 by the function key on remote controller.
Whether S203, when artificially not setting the mode of operation of direct current air regulating control 400 by remote controller, enter energy saver mode mode of operation at night by photosensor automatic decision direct current air regulating control 400.If so, step S204 is performed; If not, step S205 is performed.
S204, direct current air regulating control 400 enters saving operation mode at night automatically.
S205, direct current air regulating control 400 keeps powerful pattern on daytime.
In sum, according to the Vehicular direct-current air conditioner system of the embodiment of the present invention, discharge and recharge circuit worked on up and down bias and DC/DC changer are controlled, to improve the traveling comfort of vehicle drive indoor according to the terminal voltage of the state of starting switch, the output voltage of photovoltaic module and energy storage device and capacity by controller.Further, in the Vehicular direct-current air conditioner system of the embodiment of the present invention, owing to adopting photovoltaic module to power to energy storage device and direct current air regulating control, the consumption of fuel oil and the discharge of waste gas is decreased.In addition, in Vehicular direct-current air conditioner system, owing to adopting direct current air regulating control, decrease the inversion link in transformation of electrical energy, improve the degree of utilization of electric energy and the flying power of energy storage device.
In order to realize above-described embodiment, the present invention also proposes a kind of control method of Vehicular direct-current air conditioner system, wherein, Vehicular direct-current air conditioner system comprises for the photovoltaic converter generating galvanic photovoltaic module, energy storage device, direct current air regulating control and be connected with direct current air regulating control with photovoltaic module, energy storage device, wherein, photovoltaic converter comprises starting switch, discharge and recharge circuit worked on up and down bias and DC/DC changer as shown in Figure 4, and the control method of this Vehicular direct-current air conditioner system comprises the following steps:
S1, detects the state of starting switch, and detects the output voltage of photovoltaic module and the terminal voltage of energy storage device and capacity.
According to one embodiment of present invention, energy storage device can be Vehicular accumulator cell and super capacitor.
S2, controls discharge and recharge circuit worked on up and down bias and DC/DC changer according to the terminal voltage of the state of starting switch, the output voltage of photovoltaic module and energy storage device and capacity.
According to one embodiment of present invention, when starting switch is not unlocked, if the output voltage of photovoltaic module is greater than default minimum, then controls discharge and recharge circuit worked on up and down bias and make photovoltaic module be energy storage device charging.
Wherein, control discharge and recharge circuit worked on up and down bias and make photovoltaic module be energy storage device charging, specifically comprise: when the terminal voltage of energy storage device is greater than predetermined voltage threshold, control discharge and recharge circuit worked on up and down bias with constant voltage floating charge charging modes for energy storage device charges; When the terminal voltage of energy storage device is less than or equal to predetermined voltage threshold, control discharge and recharge circuit worked on up and down bias in constant-current charge mode for energy storage device charges.
According to one embodiment of present invention, when starting switch is unlocked, if the capacity of energy storage device is more than or equal to lower limit capacity threshold value, then startup discharge and recharge circuit worked on up and down bias and DC/DC changer are that direct current air regulating control is powered by energy storage device; If the capacity of energy storage device is less than lower limit capacity threshold value, then limit the start of direct current air regulating control.
Preferably, default minimum is the final discharging voltage of Vehicular accumulator cell, and predetermined voltage threshold is 1.125-1.15 times of the Vehicular accumulator cell rated voltage in energy storage device, and lower limit capacity threshold value is 50% of energy storage device rated capacity.
Particularly, as shown in Figure 2, first judge whether the starting switch of photovoltaic converter is opened, if starting switch is not unlocked, then start the discharge and recharge circuit worked on up and down bias of energy storage device, judge whether the voltage that photovoltaic module exports is greater than default minimum, whether the voltage that namely photovoltaic module exports is greater than the final discharging voltage of Vehicular accumulator cell as 21V, if the voltage that photovoltaic module exports is greater than default minimum, then controls discharge and recharge circuit worked on up and down bias and make photovoltaic module be energy storage device charging; If the voltage that photovoltaic module exports is less than or equal to default minimum, then points out illumination not enough, and close the discharge and recharge circuit worked on up and down bias of energy storage device.
When starting discharge and recharge circuit worked on up and down bias and being energy storage device charging, first judge whether the terminal voltage of energy storage device is greater than predetermined voltage threshold, namely judge whether the terminal voltage of energy storage device is greater than the 1.125-1.15 of the Vehicular accumulator cell rated voltage in energy storage device doubly, if the terminal voltage of energy storage device is greater than predetermined voltage threshold, then control discharge and recharge circuit worked on up and down bias with constant voltage floating charge charging modes for energy storage device charges; If the terminal voltage of energy storage device is less than or equal to predetermined voltage threshold, then control discharge and recharge circuit worked on up and down bias in constant-current charge mode for energy storage device charges.
When starting switch is unlocked, first judge whether the capacity of energy storage device is more than or equal to lower limit capacity threshold value, namely judge whether the capacity of energy storage device is more than or equal to 50% of energy storage device rated capacity, if the capacity of energy storage device is more than or equal to lower limit capacity threshold value, then startup discharge and recharge circuit worked on up and down bias and DC/DC changer are that direct current air regulating control is powered by energy storage device; If the capacity of energy storage device is less than lower limit capacity threshold value, then point out the electricity of energy storage device not enough, the start of restriction direct current air regulating control, thus energy storage device and direct current air regulating control are protected.
Wherein, the mode of operation of direct current air regulating control comprise daytime powerful pattern and night energy saver mode.
According to the control method of the Vehicular direct-current air conditioner system of the embodiment of the present invention, first the state of starting switch is detected, and detect the output voltage of photovoltaic module and the terminal voltage of energy storage device and capacity, then according to the terminal voltage of the state of starting switch, the output voltage of photovoltaic module and energy storage device and capacity, discharge and recharge circuit worked on up and down bias and DC/DC changer are controlled.Therefore, the control method of the Vehicular direct-current air conditioner system of the embodiment of the present invention, according to the terminal voltage of the state of starting switch, the output voltage of photovoltaic module and energy storage device and capacity, the traveling comfort improving vehicle drive indoor is controlled to discharge and recharge circuit worked on up and down bias and DC/DC changer, reduce the consumption of fuel oil and the discharge of waste gas.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification sheets or example and different embodiment or example can carry out combining and combining by those skilled in the art.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
Describe and can be understood in diagram of circuit or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of treater or other can from instruction execution system, device or equipment fetch instruction and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this specification sheets, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronics package) with one or more wiring, portable computer diskette box (magnetic device), random access memory (RAM), read-only memory (ROM) (ROM), erasablely edit read-only memory (ROM) (EPROM or flash memory), fiber device, and portable optic disk read-only memory (ROM) (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanning to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinatory logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only memory (ROM), disk or CD etc.Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (14)
1. a Vehicular direct-current air conditioner system, is characterized in that, comprising:
Photovoltaic module, for generating direct current (DC);
Energy storage device and direct current air regulating control;
The photovoltaic converter be connected with described direct current air regulating control with described photovoltaic module, described energy storage device, described photovoltaic converter comprises:
Starting switch;
Discharge and recharge circuit worked on up and down bias, one end of described discharge and recharge circuit worked on up and down bias is connected with described photovoltaic module, and the other end of described discharge and recharge circuit worked on up and down bias is connected with described energy storage device;
DC/DC changer, one end of described DC/DC changer is connected respectively with described photovoltaic module one end with described discharge and recharge circuit worked on up and down bias, and the other end of described DC/DC changer is connected with described direct current air regulating control;
Controller, described controller is connected with described DC/DC changer with described discharge and recharge circuit worked on up and down bias respectively, controls described discharge and recharge circuit worked on up and down bias and described DC/DC changer for the output voltage of the state according to described starting switch, described photovoltaic module and the terminal voltage of described energy storage device and capacity.
2. Vehicular direct-current air conditioner system as claimed in claim 1, is characterized in that, wherein, the mode of operation of described direct current air regulating control comprise daytime powerful pattern and night energy saver mode.
3. Vehicular direct-current air conditioner system as claimed in claim 1, is characterized in that,
When described starting switch is not unlocked, described controller, when the output voltage of described photovoltaic module is greater than default minimum, controls described discharge and recharge circuit worked on up and down bias and makes described photovoltaic module be the charging of described energy storage device.
4. Vehicular direct-current air conditioner system as claimed in claim 3, is characterized in that,
When the terminal voltage of described energy storage device is greater than predetermined voltage threshold, it is the charging of described energy storage device that described controller controls described discharge and recharge circuit worked on up and down bias with constant voltage floating charge charging modes;
When the terminal voltage of described energy storage device is less than or equal to described predetermined voltage threshold, it is the charging of described energy storage device that described controller controls described discharge and recharge circuit worked on up and down bias in constant-current charge mode.
5. Vehicular direct-current air conditioner system as claimed in claim 1, is characterized in that, when described starting switch is unlocked,
If the capacity of described energy storage device is more than or equal to lower limit capacity threshold value, then start described discharge and recharge circuit worked on up and down bias and described DC/DC changer is that described direct current air regulating control is powered by described energy storage device;
If the capacity of described energy storage device is less than described lower limit capacity threshold value, then limit the start of described direct current air regulating control.
6. Vehicular direct-current air conditioner system as claimed in claim 3, it is characterized in that, described energy storage device is Vehicular accumulator cell and super capacitor.
7. Vehicular direct-current air conditioner system as claimed in claim 6, it is characterized in that, described default minimum is the final discharging voltage of described Vehicular accumulator cell.
8. Vehicular direct-current air conditioner system as claimed in claim 4, is characterized in that, described predetermined voltage threshold is 1.125-1.15 times of the Vehicular accumulator cell rated voltage in described energy storage device.
9. Vehicular direct-current air conditioner system as claimed in claim 5, it is characterized in that, described lower limit capacity threshold value is 50% of described energy storage device rated capacity.
10. the control method of a Vehicular direct-current air conditioner system, it is characterized in that, described Vehicular direct-current air conditioner system comprises for the photovoltaic converter generating galvanic photovoltaic module, energy storage device, direct current air regulating control and be connected with described direct current air regulating control with described photovoltaic module, described energy storage device, wherein, described photovoltaic converter comprises starting switch, discharge and recharge circuit worked on up and down bias and DC/DC changer, and described control method comprises the following steps:
Detect the state of described starting switch, and detect the output voltage of photovoltaic module and the terminal voltage of described energy storage device and capacity;
According to the terminal voltage of the state of described starting switch, the output voltage of described photovoltaic module and described energy storage device and capacity, described discharge and recharge circuit worked on up and down bias and described DC/DC changer are controlled.
The control method of 11. Vehicular direct-current air conditioner systems as claimed in claim 10, is characterized in that,
When described starting switch is not unlocked, if the output voltage of described photovoltaic module is greater than default minimum, then controls described discharge and recharge circuit worked on up and down bias and make described photovoltaic module be the charging of described energy storage device.
The control method of 12. Vehicular direct-current air conditioner systems as claimed in claim 11, is characterized in that, controls described discharge and recharge circuit worked on up and down bias and makes described photovoltaic module be the charging of described energy storage device, specifically comprise:
When the terminal voltage of described energy storage device is greater than predetermined voltage threshold, controlling described discharge and recharge circuit worked on up and down bias with constant voltage floating charge charging modes is the charging of described energy storage device;
When the terminal voltage of described energy storage device is less than or equal to described predetermined voltage threshold, controlling described discharge and recharge circuit worked on up and down bias in constant-current charge mode is the charging of described energy storage device.
The control method of 13. Vehicular direct-current air conditioner systems as claimed in claim 10, is characterized in that, when described starting switch is unlocked,
If the capacity of described energy storage device is more than or equal to lower limit capacity threshold value, then start described discharge and recharge circuit worked on up and down bias and described DC/DC changer is that described direct current air regulating control is powered by described energy storage device;
If the capacity of described energy storage device is less than described lower limit capacity threshold value, then limit the start of described direct current air regulating control.
The control method of 14. Vehicular direct-current air conditioner systems as claimed in claim 10, is characterized in that, wherein, the mode of operation of described direct current air regulating control comprise daytime powerful pattern and night energy saver mode.
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