CN204006521U - Automotive air-conditioning system - Google Patents
Automotive air-conditioning system Download PDFInfo
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- CN204006521U CN204006521U CN201420460747.0U CN201420460747U CN204006521U CN 204006521 U CN204006521 U CN 204006521U CN 201420460747 U CN201420460747 U CN 201420460747U CN 204006521 U CN204006521 U CN 204006521U
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Abstract
The utility model provides a kind of energy-saving controller and automotive air-conditioning system, and this energy-saving controller comprises microprocessor, energy conservation starting control circuit, energy conservation starting control end, temperature sensor input circuit, temperature sensor incoming end, compressor request signal input, compressor switch control circuit and compressor switch control signal output.This microprocessor is controlled this energy conservation starting control circuit, this temperature sensor input circuit and this compressor switch control circuit, this microprocessor is for judging whether automotive air-conditioning system starts the evaporator temperature of energy saver mode and judgement automotive air-conditioning system, and receive compressor request signal via this compressor request signal input, and via this compressor switch control signal output output squeezing machine switch controlling signal.The rear dress transformation that this energy-saving controller is applicable to current existing vehicle facilitates feasible and repacking cost is low, and this automotive air-conditioning system adopts this energy-saving controller can realize energy-conservation object.
Description
Technical field
The utility model relates to automotive field, particularly a kind of energy-saving controller and the automotive air-conditioning system that adopts this energy-saving controller.
Background technology
Along with the raising of living standards of the people, China's automobile pollution constantly increases, and thing followed energy-saving and emission-reduction pressure is also increasing.At present, air-conditioning system has realized universal on motor vehicles, and only air-conditioning system, when operation, generally just can consume the power of 1 of automobile engine 0%-15%.Wherein, compressor is the core component of air-conditioning system, plays a part compression and refrigerant conveying steam, to realize the refrigerated dehumidification to air in car, regulates the functions such as the interior air ambient of car.Therefore, improve the especially operating efficiency of its compressor of automotive air-conditioning system, for reduction automobile fuel consumption, minimizing discharge, have significant effect.
Utility model content
The purpose of this utility model comprises provides a kind of energy-saving controller, thereby realizes minimizing compressor operating interval to be applied to automotive air-conditioning system, reduces engine load, reaches energy-conservation object.
The purpose of this utility model also comprises provides a kind of automotive air-conditioning system, to realize, reduces compressor operating interval, reduces engine load, reaches energy-conservation object.
Particularly, the utility model embodiment provides a kind of energy-saving controller that is applicable to automotive air-conditioning system, and this energy-saving controller comprises microprocessor, energy conservation starting control circuit, energy conservation starting control end, temperature sensor input circuit, temperature sensor incoming end, compressor request signal input, compressor switch control circuit and compressor switch control signal output.This microprocessor is connected to this energy conservation starting control end to judge whether automotive air-conditioning system starts energy saver mode via this energy conservation starting control circuit, this microprocessor is connected to this temperature sensor incoming end with the evaporator temperature of judgement automotive air-conditioning system via this temperature sensor input circuit, this microprocessor receives compressor request signal via this compressor request signal input, and this microprocessor connects this compressor switch control signal output with output squeezing machine switch controlling signal via this compressor switch control circuit.
Preferably, this temperature sensor input circuit comprises the first electric capacity, the first resistance and the second resistance, one end of this first resistance receives a DC voltage, the other end of this first resistance is via this first capacity earth, and via this second resistance, connect this microprocessor, the two ends of this first electric capacity connect this temperature sensor incoming end.
Preferably, this microprocessor comprises analog-digital converter, and the other end of this first resistance connects this analog-digital converter via this second resistance.
Preferably, this energy conservation starting control circuit comprises the second electric capacity, the 3rd resistance and the 4th resistance, one end of the 3rd resistance receives a DC voltage, the other end of the 3rd resistance is via this second capacity earth, and via the 4th resistance, connect this microprocessor, this energy conservation starting control end is connected to the junction of this second electric capacity, the 3rd resistance and the 4th resistance.
Preferably, this energy-saving controller further comprises compressor request signal input circuit, this compressor request signal input circuit is connected between this microprocessor and this compressor request signal input, this compressor request signal input circuit comprises the 3rd electric capacity, the 5th resistance and the 6th resistance, one end of the 5th resistance receives a DC voltage, the other end of the 5th resistance is via the 3rd capacity earth, and connect this microprocessor via the 6th resistance, this compressor request signal input is connected to the 3rd electric capacity, the junction of the 5th resistance and the 6th resistance.
Preferably, this compressor switch control circuit is relay driver.
Preferably, this energy-saving controller further comprises power input and for a supply voltage being converted to the DC-DC converter of a DC voltage, the input of this DC-DC converter receives this supply voltage via this power input, and output provides the inner member of this DC voltage to this energy-saving controller.
The utility model embodiment also provides a kind of automotive air-conditioning system, this automotive air-conditioning system comprises providing engine controller and the above-mentioned energy-saving controller of compressor request signal to this energy-saving controller, and this engine controller is connected to the compressor request signal input of this energy-saving controller.
Preferably, this automotive air-conditioning system further comprises controlling the energy conservation starting switch of this energy-saving controller, and this energy conservation starting switch is connected between the energy conservation starting control end and ground of this energy-saving controller.
Preferably, this automotive air-conditioning system further comprises the evaporator temperature sensor in order to the evaporator temperature of this automotive air-conditioning system of sensing, and this evaporator temperature sensor is connected to the temperature sensor incoming end of this energy-saving controller.
Preferably, this automotive air-conditioning system further comprises air-conditioning switch and pressure switch, and this air-conditioning switch and this pressure switch are serially connected with between this engine controller and ground.This evaporator temperature sensor is also connected to this engine controller.
Preferably, this automotive air-conditioning system further comprises air-conditioning switch, pressure switch and for sending compressor request signal to this engine controller and providing the air-conditioner controller of this compressor request signal to this energy-saving controller through this engine controller, this air-conditioner controller is connected between this evaporator temperature sensor and this engine controller, and respectively via air-conditioning switch and pressure switch ground connection.
The above-mentioned energy-saving controller providing due to the utility model embodiment simple in structure, and can be used as individual devices, be applicable to the rear dress transformation of current existing vehicle, such as, when the existing automobile without air conditioner energy saving pattern need to repack the automobile with air conditioner energy saving pattern into, only need that the circuit of former car is carried out to simple change and can realize repacking to access this energy-saving controller, and without changing the software systems of electronic control unit of former car and existing hardware device, therefore facilitate feasible and repacking cost is low.And the automotive air-conditioning system that the utility model embodiment provides adopts above-mentioned energy-saving controller can effectively reduce compressor operating interval, reduce engine load, reach energy-conservation object.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of description, and for above and other object of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is a kind of internal structure schematic diagram of automotive air-conditioning system air duct.
Fig. 2 is the electrical block diagram of a kind of automotive air-conditioning system of providing of the utility model the first embodiment.
Fig. 3 is a kind of electrical block diagram of the energy-saving controller that adopts of the automotive air-conditioning system shown in Fig. 2.
Fig. 4 is the schematic flow sheet of a kind of control method of adopting of the energy-saving controller shown in Fig. 3.
Fig. 5 is the electrical block diagram of a kind of automotive air-conditioning system of providing of the utility model the second embodiment.
The specific embodiment
For further setting forth the utility model, be to reach technological means and the effect that predetermined object is taked, below in conjunction with accompanying drawing and preferred embodiment, energy-saving controller and its specific embodiment of automotive air-conditioning system, method, step, structure, feature and effect to according to the utility model proposes, be described in detail as follows.
Relevant aforementioned and other technology contents of the present utility model, Characteristic, can clearly present in following cooperation in describing in detail with reference to graphic preferred embodiment.By the explanation of the specific embodiment, when can be to reach technological means and the effect that predetermined object takes to be able to more deeply and concrete understanding to the utility model, yet appended graphic being only to provide with reference to the use with explanation, is not used for the utility model to be limited.
Please refer to Fig. 1, Fig. 1 is a kind of internal structure schematic diagram of automotive air-conditioning system air duct.This air duct 10 is provided with blower unit, cooling unit, heating unit and air outlet.Suction inlet in blower unit selects air door 110 for selecting to control fresh air outside (corresponding outer circulation) or recirculation air (circulation in corresponding) enters this air duct 10, and blower motor 112 is for controlling air velocity.Evaporimeter 120 in cooling unit is connected by pipeline with the compressor (not shown) of compression and refrigerant conveying steam, for the air to by self, carries out cooling.Heater 130 in heating unit is connected with engine cool liquid pipeline (not shown), and after engine start, coolant temperature can be heated to 90 degree left and right quickly, so heater 130 can heat the air by self.And air mix door 140 in air duct 10 by self open angle in order to control the ratio of cold and hot air, thereby realize the adjusting of air outlet temperature.Air outlet comprises a plurality of air doors 150, for controlling respectively air, from the different parts of automobile, blows out, and realization is blown face, blown pin or defrosting etc.
Please refer to Fig. 2, Fig. 2 is the electrical block diagram of a kind of automotive air-conditioning system of providing of the utility model the first embodiment.As shown in Figure 2, this automotive air-conditioning system 20 comprises compressor 21, compressor switch 22, energy-saving controller 23, energy conservation starting switch 24, engine controller 25, evaporator temperature sensor 26, air-conditioning switch 27 and pressure switch 28.This automotive air-conditioning system 20 can be used for mechanical type air-conditioning.
This air-conditioning switch 27 is arranged on automobile control panel, can open or close this automotive air-conditioning system 20 by manual control.This pressure switch 28 is arranged among the refrigerant circulation line of this automotive air-conditioning system 20; under normal conditions in closed conducting state; and too high or too low when pipeline inner pressure, that is to say while exceeding normal range (NR) automatically to disconnect, to protect built-in system when breaking down.As shown in Figure 2, this air-conditioning switch 27 and pressure switch 28 are serially connected with between this engine controller 25 and ground.At automobile engine fault-free and automobile not under anxious accelerating mode condition, when this air-conditioning switch 27 and pressure switch 28 equal closure, this engine controller 25 can judge that current state meets compressor and enables condition according to this, otherwise, when automobile engine exists fault or automobile under anxious accelerating mode condition or when this air-conditioning switch 27 or this pressure switch 28 disconnect, this engine controller 25 all can judge that current state does not meet compressor and enables condition.
This evaporator temperature sensor 26 is arranged on evaporimeter (the evaporimeter 120 as shown in Figure 1) surface of this automotive air-conditioning system 20, in order to the temperature of this evaporimeter of sensing.As shown in Figure 2, this evaporator temperature sensor 26 is connected to respectively this engine controller 25 and this energy-saving controller 23.The temperature that this engine controller 25 and this energy-saving controller 23 all can obtain this evaporimeter according to this evaporator temperature sensor 26 is to judge whether the temperature of this evaporimeter meets the trigger condition of compressor.
This engine controller 25 connects this energy-saving controller 23, at least at compressor, enables under the satisfied situation of condition, provides compressor request signal to this energy-saving controller 23.
This energy conservation starting switch 24 is arranged on automobile control panel, can be by manual control to open or to close the energy saver mode of this automotive air-conditioning system 20.As shown in Figure 2, this energy conservation starting switch 24 is connected between this energy-saving controller 23 and ground, in order to control this energy-saving controller 23.This energy-saving controller 23 is connected between this engine controller 25 and compressor switch 22, in order to provide compressor control signal to this compressor switch 22.
This compressor switch 22 can be relay, is connected between automobile storage battery (not shown) and this compressor 21, in order to the compressor control signal providing according to this energy-saving controller 23, opens or close this compressor 21.
Refer again to Fig. 2, details are as follows for the course of work of this automotive air-conditioning system 20.
When this energy conservation starting switch 24 is closed, this automotive air-conditioning system 20 is in energy saver mode, and this energy-saving controller 23 is in control model.Under the energy saver mode of this automotive air-conditioning system 20, this engine controller 25 judges whether current state meets compressor and enable condition, if the compressor condition that enables meets, this engine controller 25 provides compressor request signal to this energy-saving controller 23.The temperature of the evaporimeter that this energy-saving controller 23 senses according to this evaporator temperature sensor 26, further judges whether the temperature of this evaporimeter meets Energy Saving Control condition, i.e. the energy-conservation trigger condition of compressor 21.In the present embodiment, under the energy saver mode of this automotive air-conditioning system 20, the energy-conservation trigger condition of opening compressor 21 is: evaporimeter is in temperature-rise period, and temperature is higher than the first temperature, as this first temperature can be 11 ℃; The energy-conservation trigger condition of close compressor 21 is: evaporimeter is in temperature-fall period, and temperature is lower than the second temperature, as this second temperature can be 9 ℃.This first temperature is higher than this second temperature.
If the temperature of this evaporimeter meets the energy-conservation trigger condition of opening compressor, this energy-saving controller 23 sends corresponding compressor control signal, and this compressor control signal is offered to this compressor switch 22 to open this compressor 21; If the temperature of this evaporimeter meets the conventional trigger condition of close compressor, this energy-saving controller 23 sends corresponding compressor control signal, and this compressor control signal is offered to this compressor switch 22 to close this compressor 21.
When this energy conservation starting switch 24 disconnects, this automotive air-conditioning system 20 is in normal mode, and this energy-saving controller 23 is in bypass mode.Under the normal mode of this automotive air-conditioning system 20, this engine controller 25 judges whether current state meets compressor and enable condition, if enabling condition, compressor meets, the temperature of the evaporimeter that this engine controller 25 senses according to this evaporator temperature sensor 26, further judges whether the temperature of this evaporimeter meets the conventional trigger condition of this compressor 21.In the present embodiment, under the normal mode of this automotive air-conditioning system 20, the conventional trigger condition of opening compressor 21 is: evaporimeter is in temperature-rise period, and temperature is higher than the 3rd temperature, as the 3rd temperature can be 3 ℃; The conventional trigger condition of close compressor 21 is: evaporimeter is in temperature-fall period, and temperature is lower than the 4th temperature, and the 4th temperature should be higher than the temperature that can make evaporimeter freeze, as the 4th temperature can be 1 ℃.The 3rd temperature is higher than the 4th temperature.That is to say, under normal mode, in order to guarantee the maximum refrigeration performance of this automotive air-conditioning system 20, the temperature of this evaporimeter need to be stabilized in lower temperature, as 2 ℃ of left and right, when temperature is during lower than the 4th temperature, for the device that avoids evaporating freezes, need close compressor 21; And when temperature is during higher than the 3rd temperature, need to open compressor 21, to reduce the temperature of this evaporimeter.
If the temperature of this evaporimeter meets the conventional trigger condition of opening compressor 21, this engine controller 25 sends compressor request signal, and this compressor request signal is offered to this energy-saving controller 23, the compressor request signal that this energy-saving controller 23 directly sends this engine controller 25 offers this compressor switch 22 to open this compressor 21 as compressor control signal; If the temperature of this evaporimeter meets the conventional trigger condition of close compressor 21, this engine controller 25 sends compressor request signal, and this compressor request signal is offered to this energy-saving controller 23, the compressor request signal that this energy-saving controller 23 directly sends this engine controller 25 offers this compressor switch 22 to close this compressor 21 as compressor control signal.
It should be noted that, when this energy-saving controller 23 do not receive the compressor request signal that this engine controller 25 provides (such as, compressor enables condition and does not meet), or when the temperature of the evaporimeter that this evaporator temperature sensor 26 senses is equal to or less than this first temperature (as 3 ℃), this energy-saving controller 23 can directly send compressor control signal, and this compressor control signal is offered to this compressor switch 22 to close this compressor 21.
In the prior art, the temperature of the evaporimeter of automotive air-conditioning system need be stabilized in 2 ℃ of left and right always, when temperature is during lower than 1 ℃, for the device that avoids evaporating freezes, needs close compressor, and when temperature is during higher than 3 ℃, need to open compressor, to reduce the temperature of evaporimeter, yet, because the Temperature Setting of evaporimeter must be lower, tend to make the air through evaporimeter to have cold phenomenon, such as, when air ambient temperature is 30 ℃, this air temperature after evaporimeter is down to 4 ℃, now need by heater, to be heated to 15 ℃ or higher temperature again, to reach a suitable air themperature, under the moderate cooling load operating modes such as spring and autumn, this phenomenon is particularly evident, therefore, the too low waste that means compressor work of Temperature Setting of evaporimeter, thereby increased the load of automobile engine.And in the present embodiment, because this automotive air-conditioning system 20 has adopted energy-saving controller 23, and meet second temperature of energy-conservation trigger condition of close compressor 21 higher than the 3rd temperature of opening the conventional trigger condition of compressor 21 in normal mode, that is to say, in energy saver mode, appropriateness has improved the temperature of the evaporator temperature scope of the trigger condition that meets compressor, as 9 ℃ to 11 ℃, when evaporator temperature is just opened compressor during higher than 11 ℃, compared to automotive air-conditioning system of the prior art, at evaporator temperature, just open compressor during higher than 3 ℃, under the moderate cooling load operating modes such as spring and autumn or the situation without low temperature too, it is interval that this automotive air-conditioning system 20 has obviously shortened compressor operating, such as, when air ambient temperature is 30 ℃, under the energy saver mode of this automotive air-conditioning system 20, air temperature after evaporimeter is down to 12 ℃, now only need by heater, to be heated to suitable air themperature (as 15 ℃) again, even without adding hot-air by heater again.Therefore, this automotive air-conditioning system 20 can reduce compressor operating interval, reduces engine load, reaches energy-conservation object.
Further, this automotive air-conditioning system 20 adopts the energy conservation starting switch 24 that can manually control, this energy conservation starting switch 24 can independently be controlled as required, need to improve car load refrigerating speed, especially in summer of tight heat, under the higher situation of vapour vehicle interior temperature, can first not open energy conservation starting switch 24, make automotive air-conditioning system 20 under normal mode, reduce rapidly vapour vehicle interior temperature, and at temperature stabilization, open again energy conservation starting switch 24 after to a certain extent to start energy saver mode, thereby realize comfortable and energy-conservation balance.
Please also refer to Fig. 3, Fig. 3 is a kind of electrical block diagram of the energy-saving controller 23 that adopts of the automotive air-conditioning system 20 shown in Fig. 2.As shown in Figure 3, this energy-saving controller 23 comprises microprocessor 230, DC-DC converter 231, power input 232, temperature sensor input circuit 233, temperature sensor incoming end 234, energy conservation starting control circuit 235, energy conservation starting control end 236, compressor request signal input circuit 237, compressor request signal input 238, compressor switch control circuit 239 and compressor switch control signal output 240.
This microprocessor 230 is as the core component of whole energy-saving controller 23, in order to control other inner members of this energy-saving controller 23.This microprocessor 230 comprises analog-digital converter 2301, the first input/output interface 2302 and the second input/output interface 2303.
This DC-DC converter 231 can be the DC-DC converter that a 12V DC voltage turns 5V DC voltage, for the supply voltage that automobile storage battery is provided, is converted to a DC voltage.The input of this DC-DC converter 231 (not indicating) is connected to automobile storage battery to receive this supply voltage via this power input 232, and output (not indicating) provides the inner member of this DC voltage to this energy-saving controllers 23 such as this microprocessor 230, this temperature sensor input circuit 233, energy conservation starting control circuit 235 and compressor request signal input circuits 237.
This temperature sensor input circuit 233 is connected with this evaporator temperature sensor 26 via this temperature sensor incoming end 234, this temperature sensor input circuit 233 provides temperature sensing signal to this microprocessor 230 for the temperature sensing according to this evaporator temperature sensor 26, to be processed by this microprocessor 230.This temperature sensor input circuit 233 comprises the first capacitor C 1, the first resistance R 1 and the second resistance R 2.One end of this first resistance R 1 receives the DC voltage VCC that this DC-DC converter 231 provides, and the other end is via this first capacitor C 1 ground connection, and via this second resistance R 2, connects the analog-digital converter 2301 of these microprocessors 230.The two ends of this first capacitor C 1 connect this temperature sensor incoming end 234 and are connected with this evaporator temperature sensor 26 via this temperature sensor incoming end 234.This evaporator temperature sensor 26 can adopt negative temperature coefficient resister, and its resistance reduces with the rising of temperature, if the impedance R of this negative temperature coefficient resister
s1represent, the voltage that this analog-digital converter 2301 collects by this temperature sensor input circuit 233 can be used equation R
s1* VCC/ (R
s1+ R1) represent, wherein R1 represents the impedance of the first resistance R 1, and VCC represents the voltage that this first resistance R 1 receives.These microprocessor 230 interior reservoir have the look-up table that represents voltage and temperature relation, and this microprocessor 230 gathers after the magnitude of voltage that these temperature sensor input circuits 233 provide the temperature that can obtain the evaporimeter that this evaporator temperature sensor 26 that should magnitude of voltage is sensed by the mode of tabling look-up via this analog-digital converter 2301.
This energy conservation starting control circuit 235 connects this energy conservation starting switch 24 via this energy conservation starting control end 236.This energy conservation starting control circuit 235 comprises the second capacitor C 2, the 3rd resistance R 3 and the 4th resistance R 4.One end of the 3rd resistance R 3 receives the DC voltage VCC that this DC-DC converter 231 provides, and the other end is via these the second capacitor C 2 ground connection, and via the 4th resistance R 4, connects the first input/output interface 2302 of these microprocessors 230.This energy conservation starting control end 236 is connected to the junction of this second capacitor C 2, the 3rd resistance R 3 and the 4th resistance R 4.When this energy conservation starting switch 24 disconnects, this energy conservation starting control circuit 235 provides DC voltage VCC, is that logic high is to the first input/output interface 2302 of this microprocessor 230 via the 3rd resistance R 3 and the 4th resistance R 4; When this energy conservation starting switch 24 conducting, this energy conservation starting control circuit 235 is via the 4th resistance R 4 and this energy conservation starting switch 24 provides ground voltage, be that logic low is to the first input/output interface 2302 of this microprocessor 230.Whether this microprocessor 230 starts energy saver mode by detecting the logic level Determines of this first input/output interface 2302, that is to say, when this microprocessor 230 detects, when this first input/output interface 2302 receives logic low, start energy saver mode.
This compressor request signal input circuit 237 connects this engine controller 25 via this compressor request signal input 238.This compressor request signal input circuit 237 comprises the 3rd capacitor C 3, the 5th resistance R 5 and the 6th resistance R 6.One end of the 5th resistance R 5 receives the DC voltage VCC that this DC-DC converter 231 provides, and the other end is via the 3rd capacitor C 3 ground connection, and via the 6th resistance R 6, connects the second input/output interface 2303 of these microprocessors 230.This compressor request signal input 238 is connected to the junction of the 3rd capacitor C 3, the 5th resistance R 5 and the 6th resistance R 6, for the compressor request signal that this engine controller 25 is provided, via this compressor request signal input circuit 237, offers this microprocessor 230.In other embodiments, this compressor request signal input 238 can be connected directly to this second input/output interface 2303.
This microprocessor 230 is connected to this compressor switch control signal output 240 via this compressor switch control circuit 239, this compressor switch control circuit 239 connects this compressor switch 22 via this compressor switch control signal output 240, for output squeezing machine control signal, gives this compressor switch 22.This compressor switch control circuit 239 can be relay driver.
Please also refer to Fig. 4, Fig. 4 is the schematic flow sheet of a kind of control method of adopting of the energy-saving controller 23 shown in Fig. 3.As shown in Figure 3 and Figure 4, after this energy-saving controller 23 is started working and is carried out power-up initializing, this energy-saving controller 23 judges whether conducting of this energy conservation starting switch 24 via this microprocessor 230, if this not conducting of energy conservation starting switch 24, these microprocessor 230 these automotive air-conditioning systems 20 of judgement do not adopt energy saver mode, this energy-saving controller 23 enters bypass mode, this energy-saving controller 23 further judges via this microprocessor 230 whether this second input/output interface 2303 has the input of compressor request signal, if this second input/output interface 2303 does not have the input of compressor request signal, this microprocessor 230 cuts out this compressor 21 through this compressor switch control circuit 239, if this second input/output interface 2303 has the input of compressor request signal, this microprocessor 230 directly offers this compressor switch 22 to open or close compressor 21 using this compressor request signal as compressor control signal through compressor ON-OFF control circuit 239 and compressor switch control signal output 240.
If these energy conservation starting switch 24 conductings, this this automotive air-conditioning system 20 of microprocessor 230 judgements adopts energy saver mode, this energy-saving controller 23 enters control model, this energy-saving controller 23 further judges via microprocessor 230 whether this second input/output interface 2303 has the input of compressor request signal, if this second input/output interface 2303 does not have the input of compressor request signal, this microprocessor 230 cuts out this compressor 21 through this compressor switch control circuit 239.If this second input/output interface 2303 has the input of compressor request signal, this microprocessor 230 further judges whether evaporator temperature meets Energy Saving Control condition, if evaporator temperature meets Energy Saving Control condition, this microprocessor 230 exports corresponding compressor switch control signal to cut out this compressor 21 through this compressor switch control circuit 239 and compressor switch control signal output 240; If evaporator temperature is discontented with sufficient Energy Saving Control requirement, this microprocessor 230 is exported corresponding compressor switch control signal to open this compressor 21 through this compressor switch control circuit 239 and compressor switch control signal output 240.
Particularly, this microprocessor 230 obtains the temperature of the evaporimeter that evaporator temperature sensor 26 senses via this temperature sensor input circuit 233, whether the temperature that judges this evaporimeter meets Energy Saving Control requirement, such as, this evaporator temperature in temperature-rise period time whether higher than the first temperature (as 11 ℃), if the temperature of this evaporimeter is higher than this first temperature, these microprocessor 230 these evaporator temperatures of judgement are discontented with podomere energy controlled condition, this microprocessor 230 is via exporting corresponding compressor switch control signal to open the compressor 21 of this automotive air-conditioning system 20 through compressor ON-OFF control circuit 239 and compressor switch control signal output 240, and this evaporator temperature in temperature-fall period time whether lower than the second temperature (as 9 ℃), if the temperature of this evaporimeter is lower than this second temperature, these microprocessor 230 these evaporator temperatures of judgement meet Energy Saving Control condition, and this microprocessor 230 is via exporting corresponding compressor switch control signal to cut out the compressor 21 of this automotive air-conditioning system 20 through compressor ON-OFF control circuit 239 and compressor switch control signal output 240.
This energy-saving controller 23 simple in structure, and can be used as individual devices, be applicable to the rear dress transformation of current existing vehicle, such as, when the existing automobile without air conditioner energy saving pattern need to repack the automobile with air conditioner energy saving pattern into, only need that the circuit of former car is carried out to simple change to access this energy-saving controller 23 and can realize repacking with this energy conservation starting switch 24, and without changing the software systems of electronic control unit of former car and existing hardware device, therefore facilitate feasible and repacking cost is low.
Please refer to Fig. 5, Fig. 5 is the electrical block diagram of a kind of automotive air-conditioning system of providing of the utility model the second embodiment.As shown in Figure 5, the automotive air-conditioning system 20 that automotive air-conditioning system 30 provides to the first embodiment is similar, its main distinction is, this automotive air-conditioning system 30 further comprises air-conditioner controller 39, this air-conditioner controller 39 is connected between evaporator temperature sensor 36 and engine controller 35, and respectively via air-conditioning switch 37 and pressure switch 38 ground connection, by this air-conditioner controller 39 temperature of these evaporator temperature sensors 36 of judgement and the state of this air-conditioning switch 37 and this pressure switch 38, and send compressor request signal to this engine controller 35, through this engine controller 35, provide this compressor request signal to energy-saving controller 33.This air-conditioner controller 39 can pass through controller local area network (Controller Area Network, CAN) bus and send compressor request signal to this engine controller 35.This automotive air-conditioning system 30 can be used for electric-controlled type air-conditioning.
Because normal mode and the energy saver mode of this automotive air-conditioning system 30 are all similar to the automotive air-conditioning system providing 20 in the first embodiment, and the circuit structure of its energy-saving controller 33 is also similar to the energy-saving controller 23 in the first embodiment to Energy Saving Control principle, therefore do not repeat them here.
Below be only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet not in order to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be not depart from technical solutions of the utility model content, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (12)
1. an energy-saving controller, be applicable to automotive air-conditioning system, it is characterized in that, this energy-saving controller comprises microprocessor, energy conservation starting control circuit, energy conservation starting control end, temperature sensor input circuit, temperature sensor incoming end, compressor request signal input, compressor switch control circuit and compressor switch control signal output, this microprocessor is connected to this energy conservation starting control end to judge whether automotive air-conditioning system starts energy saver mode via this energy conservation starting control circuit, this microprocessor is connected to this temperature sensor incoming end with the evaporator temperature of judgement automotive air-conditioning system via this temperature sensor input circuit, this microprocessor receives compressor request signal via this compressor request signal input, this microprocessor connects this compressor switch control signal output with output squeezing machine switch controlling signal via this compressor switch control circuit.
2. energy-saving controller according to claim 1, it is characterized in that, this temperature sensor input circuit comprises the first electric capacity, the first resistance and the second resistance, one end of this first resistance receives a DC voltage, the other end of this first resistance is via this first capacity earth, and via this second resistance, connect this microprocessor, the two ends of this first electric capacity connect this temperature sensor incoming end.
3. energy-saving controller according to claim 2, is characterized in that, this microprocessor comprises analog-digital converter, and the other end of this first resistance connects this analog-digital converter via this second resistance.
4. energy-saving controller according to claim 1, it is characterized in that, this energy conservation starting control circuit comprises the second electric capacity, the 3rd resistance and the 4th resistance, one end of the 3rd resistance receives a DC voltage, the other end of the 3rd resistance is via this second capacity earth, and via the 4th resistance, connect this microprocessor, this energy conservation starting control end is connected to the junction of this second electric capacity, the 3rd resistance and the 4th resistance.
5. energy-saving controller according to claim 1, it is characterized in that, this energy-saving controller further comprises compressor request signal input circuit, this compressor request signal input circuit is connected between this microprocessor and this compressor request signal input, this compressor request signal input circuit comprises the 3rd electric capacity, the 5th resistance and the 6th resistance, one end of the 5th resistance receives a DC voltage, the other end of the 5th resistance is via the 3rd capacity earth, and connect this microprocessor via the 6th resistance, this compressor request signal input is connected to the 3rd electric capacity, the junction of the 5th resistance and the 6th resistance.
6. energy-saving controller according to claim 1, is characterized in that, this compressor switch control circuit is relay driver.
7. energy-saving controller according to claim 1, it is characterized in that, this energy-saving controller further comprises power input and for a supply voltage being converted to the DC-DC converter of a DC voltage, the input of this DC-DC converter receives this supply voltage via this power input, and output provides the inner member of this DC voltage to this energy-saving controller.
8. an automotive air-conditioning system, it is characterized in that, this automotive air-conditioning system comprises providing compressor request signal to the engine controller of this energy-saving controller and the arbitrary energy-saving controller as described in claim 1 to 7, and this engine controller is connected to the compressor request signal input of this energy-saving controller.
9. automotive air-conditioning system according to claim 8, it is characterized in that, this automotive air-conditioning system further comprises controlling the energy conservation starting switch of this energy-saving controller, and this energy conservation starting switch is connected between the energy conservation starting control end and ground of this energy-saving controller.
10. automotive air-conditioning system according to claim 9, it is characterized in that, this automotive air-conditioning system further comprises the evaporator temperature sensor in order to the evaporator temperature of this automotive air-conditioning system of sensing, and this evaporator temperature sensor is connected to the temperature sensor incoming end of this energy-saving controller.
11. automotive air-conditioning systems according to claim 10, it is characterized in that, this automotive air-conditioning system further comprises air-conditioning switch and pressure switch, this air-conditioning switch and this pressure switch are serially connected with between this engine controller and ground, and this evaporator temperature sensor is also connected to this engine controller.
12. automotive air-conditioning systems according to claim 10, it is characterized in that, this automotive air-conditioning system further comprises air-conditioning switch, pressure switch and for sending compressor request signal to this engine controller and providing the air-conditioner controller of this compressor request signal to this energy-saving controller through this engine controller, this air-conditioner controller is connected between this evaporator temperature sensor and this engine controller, and respectively via air-conditioning switch and pressure switch ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460747.0U CN204006521U (en) | 2014-08-14 | 2014-08-14 | Automotive air-conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460747.0U CN204006521U (en) | 2014-08-14 | 2014-08-14 | Automotive air-conditioning system |
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| CN204006521U true CN204006521U (en) | 2014-12-10 |
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| CN201420460747.0U Expired - Fee Related CN204006521U (en) | 2014-08-14 | 2014-08-14 | Automotive air-conditioning system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104503511A (en) * | 2014-12-31 | 2015-04-08 | 博耐尔汽车电气***有限公司 | Controller for frosting test of air conditioner |
| CN105444369A (en) * | 2014-08-14 | 2016-03-30 | 广州汽车集团股份有限公司 | Air conditioning system of car |
-
2014
- 2014-08-14 CN CN201420460747.0U patent/CN204006521U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444369A (en) * | 2014-08-14 | 2016-03-30 | 广州汽车集团股份有限公司 | Air conditioning system of car |
| CN105444369B (en) * | 2014-08-14 | 2019-07-19 | 广州汽车集团股份有限公司 | Automotive air-conditioning system |
| CN104503511A (en) * | 2014-12-31 | 2015-04-08 | 博耐尔汽车电气***有限公司 | Controller for frosting test of air conditioner |
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