CN215971024U - Air conditioner warm air control system of hybrid vehicle - Google Patents
Air conditioner warm air control system of hybrid vehicle Download PDFInfo
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- CN215971024U CN215971024U CN202122261149.3U CN202122261149U CN215971024U CN 215971024 U CN215971024 U CN 215971024U CN 202122261149 U CN202122261149 U CN 202122261149U CN 215971024 U CN215971024 U CN 215971024U
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Abstract
The utility model discloses a warm air control system of an air conditioner of a hybrid vehicle, which comprises an engine coolant temperature acquisition unit for acquiring the temperature of engine coolant, a warm air core temperature acquisition unit for acquiring the temperature of a warm air core, and a heating control unit connected with the engine coolant temperature acquisition unit and the warm air core temperature acquisition unit. Above-mentioned mix motor vehicle air conditioner warm braw control system can be at the engine during operation, get up a large amount of heats that engine cooling system produced to heat the warm braw core as required, on the one hand, can accelerate the intensification effect of driver's cabin air conditioner, on the other hand can reduce the vehicle energy consumption that causes when the exclusive use heater heats the warm braw core, reduce cost, and be favorable to satisfying energy-concerving and environment-protective demand.
Description
Technical Field
The utility model relates to the technical field of hybrid vehicles, in particular to an air conditioning and warm air control system of a hybrid vehicle.
Background
Currently, hybrid vehicles are equipped with more than two power sources, including an internal combustion engine and a high voltage battery. When the electric quantity is sufficient and the load is not large, the vehicle works in a pure electric mode, and the electric quantity is completely supplied by the high-voltage battery; when the electric quantity is low or the load is large, the vehicle works in a hybrid mode, the internal combustion engine is started to drive the generator to work, and the electric quantity is provided by the high-voltage battery and the generator together. However, the air-conditioning and heating system of the hybrid vehicle in the market is independent, namely the air-conditioning water channel is heated by the PTC heater, and the energy consumption of the vehicle is further increased when the heater is used, so that the requirements of energy conservation and environmental protection are not met.
Therefore, how to avoid the increase of vehicle energy consumption caused by the fact that the air-conditioning water circuit is heated by the air-conditioning warm air system of the hybrid vehicle through the PTC heater is a technical problem that needs to be solved by those skilled in the art at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a warm air control system of an air conditioner of a hybrid vehicle, which can introduce heat energy generated by an engine cooling system into a warm air system to accelerate temperature rise so as to reduce the energy consumption of the vehicle.
In order to achieve the above object, the present invention provides an air conditioning heater control system for a hybrid vehicle, comprising:
an engine coolant temperature acquisition unit to acquire an engine coolant temperature;
the warm air core temperature acquisition unit is used for acquiring the temperature of the warm air core;
the heating control unit is connected with the engine coolant temperature acquisition unit and the warm air core temperature acquisition unit;
when the temperature of the engine coolant is higher than the target temperature in the cab, the heating control unit controls an engine coolant pipeline to be opened and a heater pipeline to be closed, so that the engine coolant heats the warm air core; when the temperature of the engine coolant is higher than the temperature of the warm air core, the heating control unit controls to open the heater pipeline and the engine coolant pipeline so that the temperature of the warm air core is higher than the temperature of the engine coolant.
Optionally, the method further comprises:
the engine control unit is connected with the engine coolant temperature acquisition unit and the heating control unit and used for acquiring the rotating speed of the engine.
Optionally, the method further comprises:
the temperature acquisition unit in the cab is connected with the heating control unit, and the temperature acquisition unit in the cab is used for acquiring the current temperature in the cab.
Optionally, the engine coolant temperature acquisition unit, the warm air core temperature acquisition unit and the temperature acquisition unit in the cab are all temperature sensors.
Optionally, the heating control unit further comprises a first one-way electric water heating valve and a second one-way electric water heating valve which are connected with the heating control unit; the first one-way electric hot water valve and the second one-way electric hot water valve control the opening and closing of the heater pipeline.
Optionally, the heating control unit further comprises a third one-way electric water heating valve and a fourth one-way electric water heating valve which are connected with the heating control unit; and the third one-way electric hot water valve and the fourth one-way electric hot water valve control the opening and closing of the engine coolant pipeline.
Optionally, the system further comprises a water pump, a heater, a first three-way valve, a second three-way valve, a water tank, an engine, a first one-way valve, a second one-way valve and a third one-way valve;
the water inlet of the water pump is connected with the water outlet of the first one-way electric hot water valve, the water outlet of the water pump is connected with the water inlet of the heater, the water outlet of the heater is connected with the water inlet of the first one-way valve, the water outlet of the first one-way valve is connected with one water inlet of the first three-way valve, the other water inlet of the first three-way valve is connected with the water outlet of the fourth one-way electric hot water valve, the water outlet of the first three-way valve is connected with the water inlet of the second one-way valve, the water outlet of the second one-way valve is connected with the water inlet of the warm air core, the water outlet of the warm air core is connected with the water inlet of the third one-way valve, the water outlet of the third one-way valve is connected with the water inlet of the second three-way valve, and one hot water outlet of the second three-way valve is connected with the water inlet of the third one-way electric hot water valve, the other water outlet of the second three-way valve is connected with the water inlet of the second one-way electric hot water valve, the water outlet of the second one-way electric hot water valve is connected with the water inlet of the water tank, the water outlet of the water tank is connected with the water inlet of the first one-way electric hot water valve, the water outlet of the third one-way electric hot water valve is connected with the water inlet of the engine, and the water outlet of the engine is connected with the water inlet of the fourth one-way electric hot water valve.
Compared with the background art, the warm air control system of the air conditioner of the hybrid vehicle provided by the embodiment of the utility model comprises an engine coolant temperature acquisition unit, a warm air core temperature acquisition unit and a heating control unit, wherein the engine coolant temperature acquisition unit is used for acquiring the temperature of the engine coolant; the warm air core temperature acquisition unit is used for acquiring the temperature of the warm air core; the heating control unit is connected with the engine coolant temperature acquisition unit and the warm air core temperature acquisition unit.
In this way, when the vehicle is in the hybrid mode, the heating control unit controls the opening and closing of the engine coolant line and the heater line based on the engine coolant temperature collected by the engine coolant temperature collection unit, the warm air core temperature collected by the warm air core temperature collection unit, and the target temperature in the cab. Specifically, when the vehicle is in a hybrid mode and the temperature of the engine coolant is higher than the target temperature in the cab, the heating control unit controls the engine coolant pipeline to be opened and the heater pipeline to be closed, so that the engine coolant can independently heat the warm air core; when engine coolant temperature is not more than the target temperature in the driver's cabin, judge again whether engine coolant temperature is greater than warm braw core temperature, if engine coolant temperature is greater than warm braw core temperature, then heating control unit control opens heater pipeline and engine coolant pipeline, heats the warm braw core simultaneously through engine coolant and heater, until warm braw core temperature is greater than engine coolant temperature.
Therefore, compared with the traditional arrangement mode that the heat energy generated by the engine is not utilized by the hybrid vehicle, the hybrid vehicle air-conditioning warm air control system provided by the embodiment of the utility model can utilize a large amount of heat generated by the engine cooling system when the engine works, namely, the engine cooling liquid pipeline is opened to start cooling liquid to heat the warm air core, so that the warm air core is heated as required, the temperature rise effect of the cab air conditioner can be accelerated, the vehicle energy consumption caused by heating the warm air core by independently using the heater can be reduced, the cost can be reduced, and the requirements of energy conservation and environmental protection can be favorably met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is an electrical schematic diagram of a hybrid vehicle air conditioning heater control system according to an embodiment of the present invention;
FIG. 2 is a block diagram of a water circuit connection of a warm air control system of an air conditioner for a hybrid vehicle according to an embodiment of the present invention;
fig. 3 is a control flowchart of an air-conditioning and heating control system for a hybrid vehicle according to an embodiment of the present invention.
Wherein:
the system comprises a water pump 1, a heater 2, a first three-way valve 3, a warm air core 4, a second three-way valve 5, a water tank 6 and an engine 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the utility model is to provide a warm air control system of a hybrid vehicle air conditioner, which can introduce the heat energy generated by an engine cooling system into a warm air system to accelerate the temperature rise, thereby reducing the energy consumption of the vehicle.
In order that those skilled in the art will better understand the disclosure, the utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 3, fig. 1 is an electrical schematic diagram of an air conditioning and heating control system for a hybrid vehicle according to an embodiment of the present invention; FIG. 2 is a block diagram of a water circuit connection of a warm air control system of an air conditioner for a hybrid vehicle according to an embodiment of the present invention; fig. 3 is a control flowchart of an air-conditioning and heating control system for a hybrid vehicle according to an embodiment of the present invention.
The embodiment of the utility model provides a warm air control system of a hybrid vehicle air conditioner, which comprises an electrical control system, wherein the electrical control system comprises an engine coolant temperature acquisition unit, a warm air core temperature acquisition unit and a heating control unit, wherein the engine coolant temperature acquisition unit is used for acquiring the temperature of engine coolant; the warm air core temperature acquisition unit is used for acquiring the temperature of the warm air core; the heating control unit is connected with the engine coolant temperature acquisition unit and the warm air core temperature acquisition unit.
In this way, when the vehicle is in the hybrid mode, the heating control unit controls the opening and closing of the engine coolant line and the heater line based on the engine coolant temperature collected by the engine coolant temperature collection unit, the warm air core temperature collected by the warm air core temperature collection unit, and the target temperature in the cab.
Specifically, when the vehicle is in a hybrid mode and the temperature of the engine coolant is higher than the target temperature in the cab, the heating control unit controls the engine coolant pipeline to be opened and the heater pipeline to be closed, so that the engine coolant can independently heat the warm air core; when engine coolant temperature is not more than the target temperature in the driver's cabin, judge again whether engine coolant temperature is greater than warm braw core temperature, if engine coolant temperature is greater than warm braw core temperature, then heating control unit control opens heater pipeline and engine coolant pipeline, heats the warm braw core simultaneously through engine coolant and heater, until warm braw core temperature is greater than engine coolant temperature.
Therefore, compared with the traditional arrangement mode that the heat energy generated by the engine is not utilized by the hybrid vehicle, the hybrid vehicle air-conditioning warm air control system provided by the embodiment of the utility model can utilize a large amount of heat generated by the engine cooling system when the engine works, namely, the engine cooling liquid pipeline is opened to start cooling liquid to heat the warm air core, so that the warm air core is heated as required, the temperature rise effect of the cab air conditioner can be accelerated, the vehicle energy consumption caused by heating the warm air core by independently using the heater can be reduced, the cost can be reduced, and the requirements of energy conservation and environmental protection can be favorably met.
Further, the electric control system also comprises an engine control unit, the engine control unit is connected with the engine coolant temperature acquisition unit and the heating control unit, and the engine control unit is used for acquiring the rotating speed of the engine.
Furthermore, the electric control system further comprises a cab temperature acquisition unit, the cab temperature acquisition unit is connected with the heating control unit, and the cab temperature acquisition unit is used for acquiring the current cab temperature.
Of course, according to actual needs, the warm air core temperature collecting unit is a warm air core temperature sensor G1, the engine coolant temperature collecting unit is an engine water temperature sensor G2, the cab temperature collecting unit is a cab temperature sensor G3, the heating control unit is a main controller E1, and the engine control unit is an engine controller E2 (i.e., ECU).
It should be noted that the warm air core temperature sensor G1 is integrated in the warm air core water channel and used for measuring the temperature of the warm air core water outlet; the engine temperature sensor G2 is integrated in the engine water channel and used for measuring the temperature of the water outlet of the engine; an in-cab temperature sensor G3 is disposed inside the cab for measuring the room temperature; the warm air core and the evaporator assembly are integrated near the cab, and during work, air is blown into the cab through the warm air core through the air blower, so that a warm air effect is achieved.
The electric control system also comprises a storage battery B, an ignition switch S1, a warm air switch S2, fuses F1-F4, a water pump 1 and a water pump control relay K1. The circuit connection mode is that a No. 4 pin at the public end of the ignition switch S1 is connected with the anode of the storage battery B through a fuse F1; the power supply end of the main controller E1, the power supply end of the warm air core temperature sensor G1 and the power supply end of the temperature sensor G3 in the cab are connected with the pin 2 of the ignition switch S1 through a fuse F2, and the power supply end of the engine controller E2 and the power supply end of the engine water temperature sensor G2 are connected with the pin 2 of the ignition switch S1 through a fuse F3; the fuse F2 is connected with one end of the warm air switch S2; the other end of the warm air switch S2, the signal end of the warm air core temperature sensor G1, the signal end of the cab temperature sensor G3 and the main controller E1 are connected; the signal end of the engine water temperature sensor G2 is connected with an engine controller E2; the No. 30 pin of the relay K1 is connected with the anode of the storage battery B through a fuse F4, the No. 87 pin is connected with the power supply end of the water pump 1, the No. 85 pin is connected with the No. 2 pin of the key switch S1, and the No. 86 pin is connected with the control end of the main controller E1; the engine controller E2 and the main controller E1 carry out information interaction through a CAN bus; one end of each of the one-way electric hot water valves Y1-Y4 is connected with the main controller E1, and the other end is grounded.
In addition, the air-conditioning and warm-air control system of the hybrid vehicle further comprises a water path heating system, wherein the water path heating system comprises a first one-way electric hot water valve Y1, a second one-way electric hot water valve Y2, a third one-way electric hot water valve Y3 and a fourth one-way electric hot water valve Y4, and the first one-way electric hot water valve Y1, the second one-way electric hot water valve Y2, the third one-way electric hot water valve Y3 and the fourth one-way electric hot water valve Y4 are all connected with the heating control unit; wherein, the first one-way electric hot water valve Y1 and the second one-way electric hot water valve Y2 control the opening and closing of the heater pipeline, and the third one-way electric hot water valve Y3 and the fourth one-way electric hot water valve Y4 control the opening and closing of the engine coolant pipeline.
It should be noted that the electric hot water valves Y1-Y4 are all one-way electric hot water valves, and when the electric hot water valves are powered on, the internal water paths are conducted, and meanwhile, energy loss caused by backflow due to different impedances of the water paths can be prevented.
The waterway heating system also comprises a water pump 1, a heater 2, a first three-way valve 3, a warm air core 4, a second three-way valve 5, a water tank 6, an engine 7, a first one-way valve V1, a second one-way valve V2 and a third one-way valve V3; wherein, the water inlet of the water pump 1 is connected with the water outlet of the first one-way electric hot water valve Y1, the water outlet of the water pump 1 is connected with the water inlet of the heater 2, the water outlet of the heater 2 is connected with the water inlet of the first one-way valve V1, the water outlet of the first one-way valve V1 is connected with one water inlet of the first three-way valve 3, the other water inlet of the first three-way valve 3 is connected with the water outlet of the fourth one-way electric hot water valve Y4, the water outlet of the first three-way valve 3 is connected with the water inlet of the second one-way valve V2, the water outlet of the second one-way valve V2 is connected with the water inlet of the warm air core 4, the water outlet of the warm air core 4 is connected with the water inlet of the third one-way valve V3, the water outlet of the third one-way valve V3 is connected with the water inlet of the second three-way valve V355, one water outlet of the second three-way valve Y3, the other water outlet of the second three-way valve 5 is connected with the water inlet of the second one-way electric hot water valve Y2, the water outlet of the second one-way electric hot water valve Y2 is connected with the water inlet of the water tank 6, the water outlet of the water tank 6 is connected with the water inlet of the first one-way electric hot water valve Y1, the water outlet of the third one-way electric hot water valve Y3 is connected with the water inlet of the engine 7, and the water outlet of the engine 7 is connected with the water inlet of the fourth one-way electric hot water valve Y4.
To sum up, the control flow of the air conditioning and warm air control system for the hybrid vehicle provided by the embodiment of the present invention may specifically include:
the first step is as follows: the main controller E1 judges whether the warm air switch S2 is closed, if so, the second step is carried out;
the second step is that: the main controller E1 acquires the current engine speed n and the engine coolant temperature T1 through an engine controller E2, acquires the warm air core temperature T2 through a warm air core temperature sensor G1, and measures the temperature T3 in the cab through a cab temperature sensor G3; obtaining a target temperature T0 in the cab required by the customer through customer setting;
the third step: judging whether the engine speed n is greater than 0, if so, indicating that the vehicle is currently in a hybrid mode, executing the fourth step, and otherwise, closing the third one-way electric hot water valve Y3 and the fourth one-way electric hot water valve Y4;
the fourth step: judging whether the temperature T1 of the engine coolant is greater than the target temperature T0 in the cab, if T1 is greater than T0, executing the fifth step, otherwise, executing the sixth step;
the fifth step: the main controller E1 opens the third one-way electric hot water valve Y3 and the fourth one-way electric hot water valve Y4, closes the first one-way electric hot water valve Y1 and the second one-way electric hot water valve Y2, and heats the warm air core only through the engine cooling water path;
and a sixth step: judging whether the temperature T1 of the engine coolant is greater than the temperature T2 of the warm air core, if T1 is greater than T2, executing the seventh step, and if not, executing the eighth step;
the seventh step: the main controller E1 opens the one-way electric hot water valve Y1-Y4, opens the water pump 1, the PTC heater 2 starts working at the same time, preheats the warm air core through the engine cooling water path and the heater pipeline until T1< T2;
eighth step: the main controller E1 opens the first one-way electric hot water valve Y1 and the second one-way electric hot water valve Y2, closes the third one-way electric hot water valve Y3 and the fourth one-way electric hot water valve Y4, turns on the water pump M1, and the PTC heater 2 starts to operate at the same time, and at this time, the engine cooling water path does not participate in the heating water path.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The air conditioning and heating control system for the hybrid vehicle provided by the utility model is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are provided only to help understand the concepts of the present invention and the core concepts thereof. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (7)
1. An air conditioning heater control system for a hybrid vehicle, comprising:
an engine coolant temperature acquisition unit to acquire an engine coolant temperature;
the warm air core temperature acquisition unit is used for acquiring the temperature of the warm air core;
the heating control unit is connected with the engine coolant temperature acquisition unit and the warm air core temperature acquisition unit;
when the temperature of the engine coolant is higher than the target temperature in the cab, the heating control unit controls an engine coolant pipeline to be opened and a heater pipeline to be closed, so that the engine coolant heats the warm air core; when the temperature of the engine coolant is higher than the temperature of the warm air core, the heating control unit controls to open the heater pipeline and the engine coolant pipeline so that the temperature of the warm air core is higher than the temperature of the engine coolant.
2. The hybrid vehicle air conditioning heater control system of claim 1, further comprising:
the engine control unit is connected with the engine coolant temperature acquisition unit and the heating control unit and used for acquiring the rotating speed of the engine.
3. The hybrid vehicle air conditioning heater control system of claim 1, further comprising:
the temperature acquisition unit in the cab is connected with the heating control unit, and the temperature acquisition unit in the cab is used for acquiring the current temperature in the cab.
4. The hybrid vehicle air-conditioning heater control system according to claim 3, wherein the engine coolant temperature acquisition unit, the heater core temperature acquisition unit, and the cabin temperature acquisition unit are temperature sensors.
5. The hybrid vehicle air-conditioning heater control system according to any one of claims 1 to 4, further comprising a first one-way electric water heating valve and a second one-way electric water heating valve connected to the heating control unit; the first one-way electric hot water valve and the second one-way electric hot water valve control the opening and closing of the heater pipeline.
6. The hybrid vehicle air-conditioning heater control system according to claim 5, further comprising a third one-way electric water heating valve and a fourth one-way electric water heating valve connected to the heating control unit; and the third one-way electric hot water valve and the fourth one-way electric hot water valve control the opening and closing of the engine coolant pipeline.
7. The hybrid vehicle air-conditioning heater control system according to claim 6, further comprising a water pump (1), a heater (2), a first three-way valve (3), a second three-way valve (5), a water tank (6), an engine (7), a first check valve, a second check valve, and a third check valve;
the water inlet of the water pump (1) is connected with the water outlet of the first one-way electric hot water valve, the water outlet of the water pump (1) is connected with the water inlet of the heater (2), the water outlet of the heater (2) is connected with the water inlet of the first one-way valve, the water outlet of the first one-way valve is connected with one water inlet of the first three-way valve (3), the other water inlet of the first three-way valve (3) is connected with the water outlet of the fourth one-way electric hot water valve, the water outlet of the first three-way valve (3) is connected with the water inlet of the second one-way valve, the water outlet of the second one-way valve is connected with the water inlet of the warm air core (4), the water outlet of the warm air core (4) is connected with the water inlet of the third one-way valve, and the water outlet of the third one-way valve is connected with the water inlet of the second three-way valve (5), one water outlet of the second three-way valve (5) is connected with a water inlet of the third one-way electric hot water valve, the other water outlet of the second three-way valve (5) is connected with a water inlet of the second one-way electric hot water valve, a water outlet of the second one-way electric hot water valve is connected with a water inlet of the water tank (6), a water outlet of the water tank (6) is connected with a water inlet of the first one-way electric hot water valve, a water outlet of the third one-way electric hot water valve is connected with a water inlet of the engine (7), and a water outlet of the engine (7) is connected with a water inlet of the fourth one-way electric hot water valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202122261149.3U CN215971024U (en) | 2021-09-17 | 2021-09-17 | Air conditioner warm air control system of hybrid vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122261149.3U CN215971024U (en) | 2021-09-17 | 2021-09-17 | Air conditioner warm air control system of hybrid vehicle |
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| CN215971024U true CN215971024U (en) | 2022-03-08 |
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| CN202122261149.3U Active CN215971024U (en) | 2021-09-17 | 2021-09-17 | Air conditioner warm air control system of hybrid vehicle |
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- 2021-09-17 CN CN202122261149.3U patent/CN215971024U/en active Active
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