CN110356187A - Air conditioning warm air system and its control method - Google Patents
Air conditioning warm air system and its control method Download PDFInfo
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- CN110356187A CN110356187A CN201810254030.3A CN201810254030A CN110356187A CN 110356187 A CN110356187 A CN 110356187A CN 201810254030 A CN201810254030 A CN 201810254030A CN 110356187 A CN110356187 A CN 110356187A
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- battery
- temperature
- engine
- offgas duct
- coolant liquid
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Classifications
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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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- 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
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
-
- 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
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/14—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit
- B60H1/18—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit the air being heated from the plant exhaust gases
-
- 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
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The present invention provides a kind of air conditioning warm air system and its control methods, air conditioning warm air system includes engine, the first electronic water pump, the second electronic water pump, battery, battery radiator, fuel heater, heater cores, the first offgas duct and the second offgas duct, engine, battery, fuel heater and heater cores are by piping connection at the first coolant liquid circulation loop, battery radiator and battery pass through piping connection into the second coolant liquid circulation loop, first offgas duct and heater cores share an air blower, and the second offgas duct is wrapped on battery.Through the above technical solutions, on the one hand can use heat of engine, cell heat, engine exhaust heat realizes interior heating, to improve heat utilization ratio, reduces power consumption, increase vehicle course continuation mileage；On the other hand it can use fuel heater and realize interior quickly heating, guarantee the comfort of user.
Description
Technical field
The present invention relates to vehicle air conditioning technical field, in particular to a kind of air conditioning warm air system and its control method.
Background technique
A kind of configuration of the air conditioning warm air system as vehicle indispensability, increasingly by each design of air conditioning engineer's
Favor.For hybrid vehicle, existing air conditioning warm air system is primarily present following defect: 1, driving and go in pure electric vehicle
It sails under mode, needs to consume the energy content of battery to heat water or wind to realize heating, lead to the reduction of vehicle electricity, so that vehicle is continued a journey
Mileage is reduced；2, it under combination drive driving mode, is heated although can be realized by engine water temperature heat, heating effect
Rate is low, and energy conversion efficiency can not improve, while the tail gas heat quantity of engine discharge cannot efficiently use, and causes heat unrestrained
Take；3, in extremely frigid zones, winter engine, battery cold start-up problem not can effectively solve, and vehicle can not be made to be in best always
Working condition；4, defrosting-defogging rate is slower, influences user's sight, is easy to cause safety accident.
Summary of the invention
In view of this, increase is whole the present invention is directed to propose a kind of air conditioning warm air system, the system can reduce power consumption
Vehicle course continuation mileage improves user's comfort.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of air conditioning warm air system, including the heat dissipation of engine, the first electronic water pump, the second electronic water pump, battery, battery
Device, fuel heater, heater cores, the first offgas duct and the second offgas duct, the engine, the battery, the fuel oil add
Hot device and the heater cores pass through piping connection into the first coolant liquid circulation loop, and first electronic water pump is described first
Coolant liquid circulation loop provides circulation power, and the battery radiator and the battery are followed by piping connection at the second coolant liquid
Loop back path, second electronic water pump provide circulation power for the second coolant liquid circulation loop, first offgas duct with
The heater cores share an air blower, and the second offgas duct winding is on the battery.
Further, first offgas duct is wrapped on the heater cores.
Further, the air conditioning warm air system further includes triple valve, and the first port of the triple valve is started with described
The exhaust outlet of machine is connected to, and the second port of the triple valve is connected to first offgas duct, the third port of the triple valve
It is connected to second offgas duct.
Further, the air conditioning warm air system further includes four-way valve, and the first port of the four-way valve is started with described
Machine connection, the second port of the four-way valve and the cell communication, the third port of the four-way valve and the fuel Heating
Device connection, the 4th port of the four-way valve are connected to the heater cores, and the battery passes through the first coolant line and institute
Heater cores connection is stated, the fuel heater is connected to by the second coolant line with the heater cores, the warm wind core
Body is connected to by third coolant line with the engine.
Further, first electronic water pump is arranged between the engine and the first port of the four-way valve.
Compared with the existing technology, air conditioning warm air system of the present invention has the advantage that
It can use heat of engine, cell heat, engine exhaust heat and realize interior heating, to improve heat benefit
With rate, reduce power consumption, increases vehicle course continuation mileage.
It can use fuel heater and realize interior quickly heating, guarantee the comfort of user.
Another object of the present invention is to propose that a kind of control method of air conditioning warm air system, this method can reduce electric energy
Consumption increases vehicle course continuation mileage, improves user's comfort.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of control method of air conditioning warm air system, the control method include:
Detect vehicle present mode；
According to vehicle present mode, the engine, the battery, the fuel heater, the heater cores are controlled
In it is two or more exchanged heat by coolant liquid, and/or, control engine exhaust flow through first offgas duct
And/or second offgas duct.
Further, in the case where vehicle present mode is engine driving driving mode, the control method is also wrapped
It includes:
Obtain user's set temperature, outdoor temperature and indoor temperature；
According to vehicle present mode, the engine, the battery, the fuel heater, the heater cores are controlled
In it is two or more exchanged heat by coolant liquid, and/or, control engine exhaust flow through first offgas duct
And/or second offgas duct, comprising:
If user's set temperature controls engine exhaust and flows through first offgas duct less than the first preset temperature；
If user's set temperature is greater than the second preset temperature, controls engine exhaust and flows through first offgas duct,
And control the engine and the heater cores are exchanged heat by coolant liquid, wherein the first preset temperature is less than second
Preset temperature；
If user's set temperature is between the first preset temperature and the second preset temperature, and outdoor temperature is greater than first
Default outdoor temperature, room temperature are greater than the first preset indoor temperature, then control engine exhaust and flow through first offgas duct；
If user's set temperature is between the first preset temperature and the second preset temperature, and outdoor temperature is no more than the
One default outdoor temperature or room temperature are not more than the first preset indoor temperature, then control engine exhaust and flow through described first
Offgas duct, and control the engine and the heater cores are exchanged heat by coolant liquid.
Further, in the case where vehicle present mode is combination drive driving mode, the control method further include:
Obtain user's set temperature and battery temperature；
According to vehicle present mode, the engine, the battery, the fuel heater, the heater cores are controlled
In it is two or more exchanged heat by coolant liquid, and/or, control engine exhaust flow through first offgas duct
And/or second offgas duct, comprising:
If user's set temperature is less than third preset temperature, controls engine exhaust and flow through first offgas duct；
If user's set temperature is not less than third preset temperature, and battery temperature is not less than default battery temperature, then
Control engine exhaust flows through first offgas duct, controls the battery and the obstructed supercooling liquid of the battery radiator carries out
Heat exchange, and control the engine, the battery and the heater cores and exchanged heat by coolant liquid；
If user's set temperature is not less than third preset temperature, and battery temperature is less than default battery temperature, then controls
Engine exhaust processed flows through first offgas duct, controls the battery and is changed with the obstructed supercooling liquid of the battery radiator
Heat, and control the engine and the heater cores are exchanged heat by coolant liquid.
Further, in the case where vehicle present mode is that pure electric vehicle drives driving mode, the control method is also wrapped
It includes:
Obtain user's set temperature and outdoor temperature；
According to vehicle present mode, the engine, the battery, the fuel heater, the heater cores are controlled
In it is two or more exchanged heat by coolant liquid, and/or, control engine exhaust flow through first offgas duct
And/or second offgas duct, comprising:
If user's set temperature is less than the 4th preset temperature, and outdoor temperature is greater than the second default outdoor temperature, then
It controls the battery to exchange heat with the obstructed supercooling liquid of the battery radiator, and controls the battery and the warm wind core
Body is exchanged heat by coolant liquid；
If user's set temperature is not more than the second default outdoor temp not less than the 4th preset temperature or outdoor temperature
Degree, then control the fuel heater and the heater cores exchanged heat by coolant liquid.
Further, in the case where vehicle present mode is low temperature pure electric vehicle start-up mode, the control method is also wrapped
It includes:
Judge whether the engine starts；
According to vehicle present mode, the engine, the battery, the fuel heater, the heater cores are controlled
In it is two or more exchanged heat by coolant liquid, and/or, control engine exhaust flow through first offgas duct
And/or second offgas duct, comprising:
If the engine is inactive, controls the fuel heater and the battery is changed by coolant liquid
Heat；
If the engine start, controls engine exhaust and flow through second offgas duct.
Further, in the case where vehicle present mode is quick heating mode,
According to vehicle present mode, the engine, the battery, the fuel heater, the heater cores are controlled
In it is two or more exchanged heat by coolant liquid, and/or, control engine exhaust flow through first offgas duct
And/or second offgas duct, comprising:
It controls the fuel heater, the engine and the heater cores to exchange heat by coolant liquid, and controls
Engine exhaust processed flows through first offgas duct.
Possessed advantage is identical compared with the existing technology with above-mentioned air conditioning warm air system for the control method, herein no longer
It repeats.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 and Fig. 2 is respectively the structural schematic diagram of air conditioning warm air system described in two kinds of embodiments of the invention, solid in figure
Line arrow indicates coolant liquid flow direction, and solid arrows indicate engine exhaust flow direction, and thin dotted line arrow indicates fuel oil flow direction；
Fig. 3 is the control method flow chart of air conditioning warm air system described in the embodiment of the present invention；
Fig. 4 is in the control under engine driving driving mode in vehicle for air conditioning warm air system described in the embodiment of the present invention
Method flow diagram processed；
Fig. 5 is in the control under combination drive driving mode in vehicle for air conditioning warm air system described in the embodiment of the present invention
Method flow diagram；
Fig. 6 is the control that air conditioning warm air system described in the embodiment of the present invention is under pure electric vehicle drives driving mode in vehicle
Method flow diagram processed；
Fig. 7 is in the controlling party under pure electric vehicle start-up mode in vehicle for air conditioning warm air system described in the embodiment of the present invention
Method flow chart.
Description of symbols:
1- engine, the first electronic water pump of 2-, 3- four-way valve, 4- battery, 5- battery radiator, 6- fuel heater, 7-
Fuel tank, 8- heater cores, the second electronic water pump of 9-, 10- triple valve, the first offgas duct of 11-, the second offgas duct of 12-, 13-
One coolant line, the second coolant line of 14-, 15- third coolant line.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
The present invention provides a kind of air conditioning warm air system, which is used for hybrid vehicle.As depicted in figs. 1 and 2, described
System includes engine 1, the first electronic water pump 2, the second electronic water pump 9, battery 4, battery radiator 5, fuel heater 6, warms up
Wind core 8, the first offgas duct 11 and the second offgas duct 12.Engine 1, battery 4, fuel heater 6 and heater cores 8 pass through pipe
Road connects into the first coolant liquid circulation loop, and the first electronic water pump 2 provides circulation power for the first coolant liquid circulation loop, cooling
Liquid recycles wherein.Battery radiator 5 and battery 4 pass through piping connection into the second coolant liquid circulation loop, the second electronic water pump 9
Circulation power is provided for the second coolant liquid circulation loop, coolant liquid recycles wherein.Fuel heater 6 and engine 1 share one
A fuel tank 7.
First offgas duct 11 shares an air blower (not shown) with heater cores 8, and engine exhaust flows through the first tail gas
The wind of pipe 11, air blower blowout takes the heat of engine exhaust in driver's cabin to.In order to increase heat exchange efficiency, the first offgas duct
11 can be helix tube.Here, the first offgas duct 11 can wind on heater cores 8 (as shown in Figure 1), also can be set
Heater cores 8 are nearby and independently of heater cores 8 (as shown in Figure 2).Second offgas duct 12 is wrapped on battery 4, and engine is useless
Air-flow is through the second offgas duct 12 to heat to battery 4.
It is realized through the above technical solutions, on the one hand can use heat of engine, cell heat, engine exhaust heat
Interior heating reduces power consumption to improve heat utilization ratio, increases vehicle course continuation mileage；On the other hand it can use combustion
Oil heater 6 realizes interior quickly heating, guarantees the comfort of user.
The first offgas duct 11 is flowed through for the ease of control engine exhaust or flows through the second offgas duct 12, or simultaneously
The first offgas duct 11 and the second offgas duct 12 are flowed through, in one embodiment, air conditioning warm air system can also include triple valve
10, the first port of the triple valve 10 is connected to the exhaust outlet of engine 1, the second port of the triple valve 10 and the first offgas duct
11 connections, the third port of the triple valve 10 are connected to the second offgas duct 12.The triple valve 10 (can not shown by air-conditioner controller
It controls out).
In the present invention, each element can connect into the first coolant liquid circulation loop in several ways.In a kind of reality
Apply in mode, as depicted in figs. 1 and 2, air conditioning warm air system can also include four-way valve 3, the first port of four-way valve 3 with start
Machine 1 is connected to, and the second port of four-way valve 3 is connected to battery 4, and the third port of four-way valve 3 is connected to fuel heater 6, four-way
4th port of valve 3 is connected to heater cores 8, and battery 4 is connected to by the first coolant line 13 with heater cores 8, and fuel oil adds
Hot device 6 is connected to by the second coolant line 14 with heater cores 8, and heater cores 8 pass through third coolant line 15 and start
Machine 1 is connected to.In this case, heater cores 8 can be flowed directly by four-way valve 3 from the coolant liquid that engine 1 comes out,
Four-way valve 3 can be passed sequentially through and battery 4 flows to heater cores 8, four-way valve 3 can also be passed sequentially through and fuel heater 6 flows
To heater cores 8；The coolant liquid come out from heater cores 8 flows back to engine 1 by third coolant line 15.In a kind of implementation
In mode, the first electronic water pump 2 be can be set between engine 1 and the first port of four-way valve 3, it is possible to further set
It sets at the cooling liquid outlet of engine 1.
Based on above-mentioned air conditioning warm air system, the present invention also provides a kind of control method of air conditioning warm air system, the controlling parties
Method includes the following steps.
Step S1: detection vehicle present mode, wherein vehicle present mode includes that engine 1 drives driving mode, mixing
Driving mode, pure electric vehicle is driven to drive driving mode, low temperature pure electric vehicle start-up mode, quick heating mode；
Step S2: according to vehicle present mode, engine 1, battery 4, fuel heater 6, two in heater cores 8 are controlled
Person or more is exchanged heat by coolant liquid, and/or, control engine exhaust flows through the first offgas duct 11 and/or the
Two offgas ducts 12.
If judge in step S1 vehicle present mode be engine 1 drive driving mode (under this mode, engine 1
Work, battery 4 do not work), then step S2 may include following sub-step.
Step S201: user's set temperature, outdoor temperature and indoor temperature are obtained；
Step S202: if user's set temperature controls engine exhaust and flow through the first tail less than the first preset temperature
Tracheae 11；
Step S203: it if user's set temperature is greater than the second preset temperature, controls engine exhaust and flows through the first tail
Tracheae 11, and control engine 1 and heater cores 8 are exchanged heat by coolant liquid, heater cores 8 are heated using engine 1,
Wherein, the first preset temperature is less than the second preset temperature；
Step S204: if user's set temperature between the first preset temperature and the second preset temperature, and outdoor temp
Degree is greater than the first default outdoor temperature, and room temperature is greater than the first preset indoor temperature, then controls engine exhaust and flow through first
Offgas duct 11；
Step S205: if user's set temperature between the first preset temperature and the second preset temperature, and outdoor temp
Degree is not more than the first preset indoor temperature no more than the first default outdoor temperature or room temperature, then controls engine efflux
It through the first offgas duct 11, and controls engine 1 and heater cores 8 are exchanged heat by coolant liquid, is heated using engine 1 warm
Wind core 8.
That is, indicate not needing many heats in driver's cabin when user's set temperature is less than the first preset temperature,
Control triple valve 10 is opened at this time, can be met indoor heating demand merely with the heat of engine exhaust, not needed to make to cool down
Liquid recycles in the first coolant liquid circulation loop, without starting the first electronic water pump 2, can save electronic water pump work in this way
Electricity required for making saves electric energy for vehicle, promotes vehicle cruising ability.
When user's set temperature is not less than the first preset temperature, heat possibly for relying only on engine exhaust at this time can not
Reach the demand of user.
Therefore, when user's set temperature is between the first preset temperature and the second preset temperature, and outdoor temperature is greater than
First default outdoor temperature, room temperature is greater than the first preset indoor temperature, when above three condition all meets, merely with starting
Machine exhaust gas carries out indoor heating.Since outdoor temperature and indoor temperature is higher at this time, room also can guarantee without excessive heat
Interior heating rate, therefore indoor heating only still is carried out using the heat of engine exhaust, electronic water pump can be saved in this way
Power consumption, improve vehicle course continuation mileage.
When user's set temperature is greater than the second preset temperature or outdoor temperature no more than the first default outdoor temperature or room
Interior temperature is not more than the first preset indoor temperature, reaches any one condition, then controls the first electronic water pump 2 and four-way valve 3 is opened
It opens, so that coolant liquid recycles between engine 1 and heater cores 8, heater cores 8 is heated using heat of engine, simultaneously
It controls triple valve 10 to open, so that engine exhaust flows through the first offgas duct 11, is at this time dual heating, i.e., utilizes and start simultaneously
Machine heat and engine exhaust heat realize indoor heating.
Here, the first preset temperature, the second preset temperature, the first default outdoor temperature, the first preset indoor temperature can be with
It sets as needed.For example, the first preset temperature can be 20 DEG C, the second preset temperature can be 25 DEG C, the first default room
Outer temperature can be -10 DEG C, and the first preset indoor temperature can be 15 DEG C.
If judge in step S1 vehicle present mode be combination drive driving mode (under this mode, engine 1 and electricity
Pond 4 is all working), then step S2 may include following sub-step.
Step S211: user's set temperature and 4 temperature of battery are obtained；
Step S212: it if user's set temperature is less than third preset temperature, controls engine exhaust and flows through the first tail
Tracheae 11；
Step S213: if user's set temperature is not less than third preset temperature, and 4 temperature of battery is not less than default electricity
4 temperature of pond then controls engine exhaust and flows through the first offgas duct 11, control battery 4 and the obstructed supercooling liquid of battery radiator 5 into
Row heat exchange, and control engine 1, battery 4 and heater cores 8 and exchanged heat by coolant liquid, utilize engine 1 and battery 4
Heat heater cores 8；
Step S214: if user's set temperature is not less than third preset temperature, and 4 temperature of battery is less than default battery
4 temperature then control engine exhaust and flow through the first offgas duct 11, and control battery 4 and the obstructed supercooling liquid of battery radiator 5 carry out
Heat exchange, and control engine 1 and heater cores 8 exchange heat by coolant liquid, utilize the heating heater cores 8 of engine 1.
That is, indicate not needing many heats in driver's cabin when user's set temperature is less than third preset temperature,
Control triple valve 10 is opened at this time, indoor heating is carried out merely with engine exhaust, without keeping coolant liquid cold first
But it recycles in liquid circulation loop, without starting the first electronic water pump 2, can be saved required for electronic water pump work in this way
Electricity saves electric energy for vehicle, promotes vehicle cruising ability.
When user's set temperature is not less than third preset temperature, heat possibly for relying only on engine exhaust at this time can not
Reach the demand of user.Therefore, when user's set temperature is not less than third preset temperature, then the heat of battery 4 is controlled no longer
(for example, the second electronic water pump 9 of control is closed) is distributed by battery radiator 5, the first electronic water pump 2 is controlled and four-way valve 3 is opened
It opens, heat of engine and engine exhaust heat is made to be supplied to heater cores 8 together, promoted drive room temperature rapidly.It needs
It is noted that when 4 temperature of battery is less than default 4 temperature of battery, in order to guarantee that battery 4 can go back up to work temperature appropriate
Degree improves the service life of battery 4, should not continue with cell heat heating heater cores 8 at this time, need four-way valve 3
Second port is closed.
Here, third preset temperature, default 4 temperature of battery can according to need to set.For example, third preset temperature can
Think 31 DEG C, presetting 4 temperature of battery can be 10 DEG C.
If judge in step S1 vehicle present mode be pure electric vehicle drive driving mode (under this mode, 4 work of battery
Make, engine 1 does not work), then step S2 may include following sub-step.
Step S221: user's set temperature and outdoor temperature are obtained；
Step S222: if user's set temperature, less than the 4th preset temperature, and outdoor temperature is greater than the second default room
Outer temperature then controls battery 4 and exchanges heat with the obstructed supercooling liquid of battery radiator 5, and controls battery 4 and heater cores 8
It is exchanged heat by coolant liquid, heats heater cores 8 using battery 4；
Step S223: if user's set temperature is pre- no more than second not less than the 4th preset temperature or outdoor temperature
If outdoor temperature, then the starting of fuel heater 6 is controlled, and controls fuel heater 6 and heater cores 8 and carried out by coolant liquid
Heat exchange heats heater cores 8 using fuel heater 6.
That is, when user's set temperature is less than the 4th preset temperature, and outdoor temperature is greater than the second default outdoor
When temperature, cell heat is controlled at this time and is distributed (for example, the second electronic water pump 9 of control is closed) without battery radiator 5, but
It controls the first electronic water pump 2 and four-way valve 3 is opened, cell heat is made to be supplied to heater cores 8, realized using cell heat indoor
Heating.When user's set temperature is not less than four preset temperatures or outdoor temperature is not more than the second default outdoor temperature, as long as
Meeting one of above-mentioned two condition, then uses 6 heated cooling fluid of fuel heater, coolant liquid flows into heater cores 8 and carries out heating,
Realize indoor quickly heating.This is because with this condition, the shortage of heat of battery 4 is adopted merely with realizing indoor quickly heating
Carrying out heating with the heat of battery 4 may cause user's complaint.
Here, the 4th preset temperature, the second default outdoor temperature can according to need to set.For example, the 4th default temperature
Degree can be 25 DEG C, and the second default outdoor temperature can be -10 DEG C.
Under electric-only mode, just since the needs of battery 4 can star at a certain temperature, in order to solve in winter or gas
The lower regional battery 4 of temperature is cold-started problem, and air conditioning warm air system of the invention increases the pre- heat function of battery 4.
Specifically, if judging that vehicle present mode is low temperature pure electric vehicle start-up mode in step S1, step S2 can
To include following sub-step.
Step S231: judge whether engine 1 starts；
Step S232: if engine 1 is inactive, the starting of fuel heater 6 is controlled, and control fuel heater 6
It is exchanged heat with battery 4 by coolant liquid, heats battery 4 using fuel heater 6；
Step S233: it if engine 1 starts, controls engine exhaust and flows through the second offgas duct 12, utilize the second tail
Tracheae 12 heats battery 4.
That is, prejudging whether engine 1 starts, if do not started, first with the heating cooling of fuel heater 6
Liquid opens the first electronic water pump 2 and four-way valve 3, preheats for battery 4, to reach startup function under electric-only mode.If inspection
The starting of engine 1 is measured, then uses another mode, i.e., drives battery 4 to heat up using engine exhaust circulated heat, thus
It realizes that battery 4 preheats, fuel oil can effectively be saved using heating by the exhaust gases mode.
If judging that vehicle present mode is quick heating mode in step S1, step S2 may include: control combustion
Oil heater 6 starts, and controls fuel heater 6 and heater cores 8 are exchanged heat by coolant liquid, control engine 1 and warm wind
Core 8 is exchanged heat by coolant liquid, and is controlled engine exhaust and flowed through the first offgas duct 11.
That is, controlling the first electronic water pump 2 under quick heating mode and four-way valve 3 being opened, make 1 He of engine
Fuel heater 6 simultaneously heats heater cores 8, and controls the unlatching of triple valve 10, and engine exhaust is made to flow through first
Offgas duct 11, the inside and outside temperature of heater cores 8 is very high at this time, can quickly be heated.Hot wind is all drawn
Entering defrosting-defogging air port can be realized quickly defrosting defrosting function.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of air conditioning warm air system, which is characterized in that including engine (1), the first electronic water pump (2), the second electronic water pump
(9), battery (4), battery radiator (5), fuel heater (6), heater cores (8), the first offgas duct (11) and the second tail gas
It manages (12), the engine (1), the battery (4), the fuel heater (6) and the heater cores (8) are connected by pipeline
It is connected into the first coolant liquid circulation loop, first electronic water pump (2) provides circulation for the first coolant liquid circulation loop and moves
Power, the battery radiator (5) and the battery (4) are by piping connection at the second coolant liquid circulation loop, second electricity
Sub- water pump (9) provides circulation power, first offgas duct (11) and the warm wind core for the second coolant liquid circulation loop
Body (8) shares an air blower, and second offgas duct (12) is wrapped on the battery (4).
2. air conditioning warm air system according to claim 1, which is characterized in that first offgas duct (11) is wrapped in described
On heater cores (8).
3. air conditioning warm air system according to claim 1, which is characterized in that the air conditioning warm air system further includes triple valve
(10), the first port of the triple valve (10) is connected to the exhaust outlet of the engine (1), and the second of the triple valve (10)
Port is connected to first offgas duct (11), and the third port of the triple valve (10) and second offgas duct (12) are even
It is logical.
4. air conditioning warm air system according to claim 1, which is characterized in that the air conditioning warm air system further includes four-way valve
(3), the first port of the four-way valve (3) is connected to by first electronic water pump (2) with the engine (1), and described four
The second port of port valve (3) is connected to the battery (4), the third port of the four-way valve (3) and the fuel heater (6)
Connection, the 4th port of the four-way valve (3) are connected to the heater cores (8), and the battery (4) passes through the first coolant pipe
Road (13) is connected to the heater cores (8), and the fuel heater (6) passes through the second coolant line (14) and the warm wind
Core (8) connection, the heater cores (8) are connected to by third coolant line (15) with the engine (1).
5. a kind of control method of air conditioning warm air system, which is characterized in that the air conditioning warm air system is to appoint in claim 1-4
Air conditioning warm air system described in one, the control method include:
Detect vehicle present mode；
According to vehicle present mode, the engine (1), the battery (4), the fuel heater (6), the warm wind are controlled
Two or more in core (8) is exchanged heat by coolant liquid, and/or, control engine exhaust flows through described the
One offgas duct (11) and/or the second offgas duct (12).
6. control method according to claim 5, which is characterized in that go in vehicle present mode for engine (1) driving
In the case where sailing mode, the control method further include:
Obtain user's set temperature, outdoor temperature and indoor temperature；
According to vehicle present mode, the engine (1), the battery (4), the fuel heater (6), the warm wind are controlled
Two or more in core (8) is exchanged heat by coolant liquid, and/or, control engine exhaust flows through described the
One offgas duct (11) and/or the second offgas duct (12), comprising:
If user's set temperature controls engine exhaust and flows through first offgas duct (11) less than the first preset temperature；
If user's set temperature is greater than the second preset temperature, controls engine exhaust and flows through first offgas duct (11),
And control the engine (1) and the heater cores (8) are exchanged heat by coolant liquid, wherein the first preset temperature is small
In the second preset temperature；
If user's set temperature is between the first preset temperature and the second preset temperature, and outdoor temperature is greater than first and presets
Outdoor temperature, room temperature are greater than the first preset indoor temperature, then control engine exhaust and flow through first offgas duct (11)；
If user's set temperature is between the first preset temperature and the second preset temperature, and outdoor temperature is pre- no more than first
If outdoor temperature or room temperature are not more than the first preset indoor temperature, then control engine exhaust and flow through first tail gas
It manages (11), and controls the engine (1) and the heater cores (8) are exchanged heat by coolant liquid.
7. control method according to claim 5, which is characterized in that vehicle present mode be combination drive driving mode
In the case where, the control method further include:
Obtain user's set temperature and battery (4) temperature；
According to vehicle present mode, the engine (1), the battery (4), the fuel heater (6), the warm wind are controlled
Two or more in core (8) is exchanged heat by coolant liquid, and/or, control engine exhaust flows through described the
One offgas duct (11) and/or the second offgas duct (12), comprising:
If user's set temperature is less than third preset temperature, controls engine exhaust and flow through first offgas duct (11)；
If user's set temperature is not less than third preset temperature, and battery (4) temperature is not less than default battery (4) temperature,
It then controls engine exhaust and flows through first offgas duct (11), control the battery (4) and the battery radiator (5) is obstructed
Supercooling liquid exchanges heat, and controls the engine (1), the battery (4) and the heater cores (8) and pass through coolant liquid
It exchanges heat；
If user's set temperature is not less than third preset temperature, and battery (4) temperature is less than default battery (4) temperature, then
Control engine exhaust flows through first offgas duct (11), controls the battery (4) and does not pass through with the battery radiator (5)
Coolant liquid exchanges heat, and controls the engine (1) and the heater cores (8) are exchanged heat by coolant liquid.
8. control method according to claim 5, which is characterized in that travel mould in vehicle present mode for pure electric vehicle driving
In the case where formula, the control method further include:
Obtain user's set temperature and outdoor temperature；
According to vehicle present mode, the engine (1), the battery (4), the fuel heater (6), the warm wind are controlled
Two or more in core (8) is exchanged heat by coolant liquid, and/or, control engine exhaust flows through described the
One offgas duct (11) and/or the second offgas duct (12), comprising:
If user's set temperature is less than the 4th preset temperature, and outdoor temperature is greater than the second default outdoor temperature, then controls
The battery (4) exchanges heat with the obstructed supercooling liquid of the battery radiator (5), and controls the battery (4) and described
Heater cores (8) are exchanged heat by coolant liquid；
If user's set temperature is not more than the second default outdoor temperature not less than the 4th preset temperature or outdoor temperature,
It controls the fuel heater (6) and the heater cores (8) is exchanged heat by coolant liquid.
9. control method according to claim 5, which is characterized in that start mould in vehicle present mode for low temperature pure electric vehicle
In the case where formula, the control method further include:
Judge whether the engine (1) starts；
According to vehicle present mode, the engine (1), the battery (4), the fuel heater (6), the warm wind are controlled
Two or more in core (8) is exchanged heat by coolant liquid, and/or, control engine exhaust flows through described the
One offgas duct (11) and/or the second offgas duct (12), comprising:
If the engine (1) is inactive, control the fuel heater (6) and the battery (4) by coolant liquid into
Row heat exchange；
If engine (1) starting, controls engine exhaust and flows through second offgas duct (12).
10. control method according to claim 5, which is characterized in that in vehicle present mode be quick heating mode
In the case of,
According to vehicle present mode, the engine (1), the battery (4), the fuel heater (6), the warm wind are controlled
Two or more in core (8) is exchanged heat by coolant liquid, and/or, control engine exhaust flows through described the
One offgas duct (11) and/or the second offgas duct (12), comprising:
The fuel heater (6), the engine (1) and the heater cores (8) are controlled to exchange heat by coolant liquid, and
And control engine exhaust flows through first offgas duct (11).
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