CN112744046A - Heat regulation and control system and car - Google Patents
Heat regulation and control system and car Download PDFInfo
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- CN112744046A CN112744046A CN201911047572.4A CN201911047572A CN112744046A CN 112744046 A CN112744046 A CN 112744046A CN 201911047572 A CN201911047572 A CN 201911047572A CN 112744046 A CN112744046 A CN 112744046A
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- loop
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- heat exchanger
- battery
- heat dissipation
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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
- B60H1/00007—Combined heating, ventilating, or cooling devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
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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
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
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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
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention provides a heat regulation and control system and an automobile, and relates to the technical field of automobiles. The heat regulating system includes: the system comprises a motor heat dissipation loop, a battery heat management loop, a cockpit heating loop and a refrigerating loop; the four-way reversing valve is respectively connected with the motor heat dissipation loop and the battery heat management loop; the first heat exchanger is respectively connected with the cockpit heating loop and the battery heat management loop; the second heat exchanger is respectively connected with the battery heat management loop and the refrigeration loop; and the third heat exchanger is respectively connected with the heating loop and the refrigerating loop of the cockpit. Through a four-way reversing valve, two three-way regulating valves and three heat exchangers, the requirements and functions of motor heat dissipation, battery heating/heat dissipation, cockpit heating and refrigeration of the vehicle are effectively integrated into a whole, the utilization rate of energy is improved, the number of high-power parts is reduced, the cost of the whole vehicle is saved, the electric quantity consumption is reduced, and the cruising mileage of the vehicle is prolonged.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a heat regulation and control system and an automobile.
Background
Because the performance degradation of the lithium battery is serious in a low-temperature environment, the activity of the anode and cathode materials and the conductivity of the electrolyte are greatly reduced, and the capacity of the battery of the electric automobile is reduced, the discharge efficiency is reduced and other adverse results are caused. In order to maintain the performance parameters of the power battery under the cold working condition, the conventional electric automobile is generally a power battery heating battery thermal management system.
The main functions of the existing whole vehicle heat management system are generally battery preheating, battery cooling, power system heat dissipation and the like, but the coupling degree with an air conditioning system is generally low, and the integration degree of the whole vehicle heat management is insufficient, so that all heat resources of the vehicle cannot be fully utilized.
Therefore, in order to save the power resources of the vehicle and extend the driving range, a system that can integrate various requirements and functions on the thermal management level of the vehicle into a whole needs to be provided.
Disclosure of Invention
The embodiment of the invention provides a heat regulation and control system and an automobile, which are used for solving the problems that the existing heat management system of the whole automobile is low in integration degree and the heat resources of the automobile are not fully utilized.
In order to solve the above technical problem, an embodiment of the present invention provides a heat regulation system applied to a vehicle, including:
the system comprises a motor heat dissipation loop, a battery heat management loop, a cockpit heating loop and a refrigerating loop;
the four-way reversing valve is respectively connected with the motor heat dissipation loop and the battery heat management loop; the four-way reversing valve comprises a first state for switching on the motor heat dissipation loop and the battery heat management loop and a second state for switching off the motor heat dissipation loop and the battery heat management loop;
the first heat exchanger is respectively connected with the cockpit heating loop and the battery thermal management loop;
the second heat exchanger is respectively connected with the battery thermal management loop and the refrigeration loop;
and the third heat exchanger is respectively connected with the cockpit heating loop and the refrigerating loop.
Further, the cockpit heating circuit includes: the heater, the first three-way regulating valve, the warm air core body and the first water pump are connected through a first main circulating pipeline;
wherein the first heat exchanger is connected to the first three-way regulating valve and the first main circulation line through a first branch line, respectively;
the third heat exchanger is connected in series with the first main circulation line;
the motor heat dissipation loop includes: the heat dissipation water tank, the second water pump, the motor controller and the second three-way regulating valve are connected through a second main circulation pipeline;
the four-way reversing valve is respectively connected with the second three-way regulating valve and the second main circulation pipeline through a second branch pipeline.
Further, the battery thermal management circuit comprises: the battery pack and the third water pump are connected through a third main circulation pipeline;
the four-way reversing valve is also connected to the third main circulation pipeline in series, and the first heat exchanger and the second heat exchanger are both connected to the third main circulation pipeline in series;
the refrigeration circuit comprises: an external heat exchanger, a compressor and an evaporator which are connected through a fourth main circulation pipeline;
the second heat exchanger is also connected in parallel with two ends of the evaporator through a third branch pipeline;
the third heat exchanger is also connected in series with the fourth main circulation line.
Further, the heat regulating system further comprises:
the first water tank is connected with the motor heat dissipation loop and the battery heat management loop and used for supplementing liquid into the motor heat dissipation loop and the battery heat management loop;
and the second water tank is connected with the cockpit heating loop and used for supplementing liquid to the cockpit heating loop.
Further, the heat regulating system further comprises:
and the controller is respectively connected with the four-way reversing valve, the first three-way regulating valve, the second three-way regulating valve, the first heat exchanger, the second heat exchanger and the third heat exchanger and is used for controlling the conduction state of the four-way reversing valve according to the current working condition of a vehicle and the requirement of a battery pack, the flow distribution proportion of the first three-way regulating valve and the second three-way regulating valve and controlling the working states of the first heat exchanger, the second heat exchanger and the third heat exchanger.
Further, the controller is specifically configured to:
when the battery pack has a heating requirement and the vehicle is in a charging state, controlling the first heat exchanger to be opened and controlling the flow distribution proportion of the first three-way regulating valve;
when the battery pack has a heating requirement and the vehicle is in a running state, the four-way reversing valve is controlled to be in a first state of conducting the motor heat dissipation loop and the battery heat management loop, and the flow distribution proportion of the second three-way regulating valve is controlled.
Further, the controller is specifically further configured to:
when the battery pack has a heat dissipation requirement, detecting the current temperature of the battery pack;
if the current temperature is lower than the preset temperature, controlling the four-way reversing valve to be in a first state of conducting the motor heat dissipation loop and the battery heat management loop; and if the current temperature is higher than or equal to the preset temperature, controlling the third heat exchanger to be started.
Further, the controller is specifically further configured to:
detecting a cockpit requirement;
when the requirement of the cockpit is a heating requirement, controlling the flow distribution proportion of the first three-way regulating valve to connect the heater with the warm air core body;
and when the cockpit demand is a refrigeration demand, controlling the second heat exchanger to be started.
The embodiment of the invention also provides an automobile which comprises the heat regulating and controlling system.
The invention has the beneficial effects that:
above-mentioned scheme, through at a four-way reversing valve, two tee bend governing valves and three heat exchanger, motor heat dissipation, battery heating/heat dissipation, cockpit heating and refrigerated demand and the function of vehicle are effectively integrated as a whole, the coupling of whole car level heat management system has been realized, carry vehicle waste heat resource to cockpit, the battery etc. needs thermal place, the utilization ratio of the energy has been improved, furthest reduces the replenishment that relies on the electric energy to go on to whole car thermal system, and the use number of high power spare part has been reduced, whole car cost has been practiced thrift, electric quantity consumption has been reduced, vehicle continuation of the journey mileage has been prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a heat regulation system according to an embodiment of the present invention.
Description of reference numerals:
1-four-way reversing valve; 21-a first heat exchanger; 22-a second heat exchanger; 23-a third heat exchanger; 31-a first three-way regulating valve; 32-a second three-way regulating valve; 41-a first water pump; 42-a second water pump; 43-third Water Pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The invention provides a heat regulation and control system and an automobile, aiming at the problems that the existing whole automobile heat management system is low in integration degree and insufficient in utilization of vehicle heat resources.
Fig. 1 illustrates a heat regulation system applied to a vehicle, including:
the system comprises a motor heat dissipation loop, a battery heat management loop, a cockpit heating loop and a refrigeration loop.
The four-way reversing valve 1 is respectively connected with the motor heat dissipation loop and the battery heat management loop; the four-way reversing valve 1 comprises a first state for switching on the motor heat dissipation loop and the battery heat management loop and a second state for switching off the motor heat dissipation loop and the battery heat management loop.
The first heat exchanger 21 is respectively connected with the cockpit heating loop and the battery thermal management loop; a second heat exchanger 22 connected to the battery thermal management circuit and the refrigeration circuit, respectively; and a third heat exchanger 23 connected to the cabin heating circuit and the cooling circuit, respectively.
It should be noted that when the four-way reversing valve 1 is in the second state in which the motor heat dissipation loop and the battery heat management loop are disconnected, the motor heat dissipation loop and the battery heat management loop respectively form respective circulation loops.
According to the embodiment of the invention, the requirements and functions of motor heat dissipation, battery heating/heat dissipation, cockpit heating and cooling of the vehicle are effectively integrated into a whole through the four-way reversing valve and the three heat exchangers, so that the coupling of a heat management system on the whole vehicle layer is realized, the vehicle waste heat resources are transported to places needing heat, such as the cockpit, the battery and the like, the utilization rate of energy is improved, the supplement of electric energy to a heat system of the whole vehicle is reduced to the maximum extent, the using number of high-power parts is reduced, the whole vehicle cost is saved, the electric quantity consumption is reduced, and the driving mileage of the vehicle is prolonged.
It should be noted that, as shown in fig. 1, the cabin heating circuit includes: the heater, the first three-way regulating valve 31, the warm air core body and the first water pump 41 are connected through a first main circulation pipeline; wherein the first heat exchanger 21 is connected to the first three-way regulating valve 31 and the first main circulation line through a first branch line, respectively; the third heat exchanger 23 is connected in series to the first main circulation line, and is connected to the heater and the first water pump 41, respectively.
Specifically, the first three-way regulation valve 31 includes: a first interface, a second interface, and a third interface. A first port of the first three-way control valve 31 is connected to the heater, a second port of the first three-way control valve 31 is connected to the first heat exchanger 21 through a first branch line, and a third port of the first three-way control valve 31 is connected to the heater core.
It should be noted that, as shown in fig. 1, the motor heat dissipation circuit includes: the heat radiation water tank, the second water pump 42, the motor controller and the second three-way regulating valve 32 are connected through a second main circulation pipeline; the four-way reversing valve 1 is connected to the second three-way regulating valve 32 and the second main circulation line through a second branch line.
Specifically, the second three-way regulating valve 32 includes: a first interface, a second interface, and a third interface. The first interface of the second three-way regulating valve 32 is connected with the heat radiation water tank, the second interface of the second three-way regulating valve 32 is connected with the motor, and the third interface of the second three-way regulating valve 32 is connected with the four-way reversing valve 1.
Further, the four-way selector valve 1 includes: the interface comprises a first interface, a second interface, a third interface and a fourth interface. The first interface of the four-way reversing valve 1 is connected with the third interface of the second three-way regulating valve 32, and the second interface of the four-way reversing valve 1 is connected with the second water pump 42.
It should be noted that, as shown in fig. 1, the battery thermal management circuit includes: a battery pack and a third water pump 43 connected by a third main circulation pipeline; the four-way reversing valve 1 is also connected in series to the third main circulation pipeline, and the first heat exchanger 21 and the second heat exchanger 22 are both connected in series to the third main circulation pipeline.
Specifically, the four-way reversing valve 1 is connected in series to the third main circulation pipeline through a third interface and a fourth interface of the four-way reversing valve 1, the third interface of the four-way reversing valve 1 is connected with the battery pack, and the fourth interface of the four-way reversing valve 1 is connected with the third water pump 43.
Note that, as shown in fig. 1, the refrigeration circuit includes: an external heat exchanger, a compressor and an evaporator which are connected through a fourth main circulation pipeline; wherein the second heat exchanger 22 is connected in parallel with two ends of the evaporator through a third branch pipeline; the third heat exchanger 23 is also connected in series to the fourth main circulation line.
Specifically, an electromagnetic valve is arranged between the evaporator and the third branch pipeline, a one-way valve is arranged between the external heat exchanger and the third heat exchanger, and the third branch pipeline is provided with the one-way valve.
Specifically, in order to ensure that the heat in the first main circulation pipeline, the second main circulation pipeline and the third main circulation pipeline circulates, a medium for transferring heat needs to be injected into each circulation pipeline, and the heat regulation and control system further includes: the first water tank is connected with the motor heat dissipation loop and the battery heat management loop and used for supplementing liquid into the motor heat dissipation loop and the battery heat management loop; and the second water tank is connected with the cockpit heating loop and used for supplementing liquid to the cockpit heating loop.
The heat regulation and control system of the embodiment of the invention effectively integrates all systems in the vehicle into a whole, realizes the coupling of a heat management system on the whole vehicle layer, and in order to ensure the full utilization of heat, the heat regulation and control system also comprises: and the controller is connected with the four-way reversing valve 1, the first three-way regulating valve 31, the second three-way regulating valve 32, the first heat exchanger 21, the second heat exchanger 22 and the third heat exchanger 23 respectively and used for controlling the conduction state of the four-way reversing valve 1 according to the current working condition of a vehicle and the requirement of a battery pack, and controlling the flow distribution proportion of the first three-way regulating valve 31 and the second three-way regulating valve 32 and controlling the working states of the first heat exchanger 21, the second heat exchanger 22 and the third heat exchanger 23.
In particular, the controller is specifically configured to:
when the battery pack has a heating demand and the vehicle is in a charging state, controlling the first heat exchanger 21 to be opened and controlling the flow distribution proportion of the first three-way regulating valve 31; when the battery pack has a heating requirement and the vehicle is in a running state, the four-way reversing valve 1 is controlled to be in a first state of conducting the motor heat dissipation loop and the battery heat management loop, and the flow distribution proportion of the second three-way regulating valve 32 is controlled.
It should be noted that, when the vehicle is charged in a cold condition, the battery pack needs to be heated to rapidly raise the temperature of the battery pack, so as to achieve the optimal charging state, thereby improving the charging efficiency and prolonging the service life of the battery. At this time, the flow distribution proportion of the first three-way regulating valve 31 is 1:0 of the first branch pipeline and the pipeline where the warm air core body is located, that is, all heat generated by the heater is transmitted to the battery heat management loop through the first heat exchanger 21 for heating the battery pack, and in addition, if the cab has a heating requirement, a part of heat can be distributed to the warm air core body of the cab heating loop by regulating the flow distribution proportion of the first three-way regulating valve 31.
It should be noted that, when the vehicle is running in cold condition, because the motor will generate heat in the working process, in order to protect the motor, the motor heat dissipation loop starts to work, because the battery needs to be heated under the low-temperature working condition to ensure the power supply efficiency of the battery, in order to reasonably utilize the heat generated by the motor, by controlling the four-way reversing valve 1 in the first state in which the motor heat dissipation circuit and the battery thermal management circuit are connected, and the flow ratio of the second three-way regulating valve 32 is regulated to be 1:0 of the second branch pipeline and the radiating water tank, namely, the heat generated in the working process of the motor is used for heating the battery pack, and in addition, if the heat generated by the motor is more, the heat can not be dissipated in time only through the battery heat management loop, the flow distribution ratio of the second three-way regulating valve 32 can be adjusted to distribute a part of the heat to the radiator tank.
Specifically, the controller is further specifically configured to:
when the battery pack has a heat dissipation requirement, detecting the current temperature of the battery pack; if the current temperature is lower than the preset temperature, controlling the four-way reversing valve 1 to be in a first state of conducting the motor heat dissipation loop and the battery heat management loop; and if the current temperature is higher than or equal to the preset temperature, controlling the third heat exchanger 23 to be started.
It should be noted that the preset temperature is used for judging the intensity of the heat dissipation requirement of the current battery pack, when the current temperature of the battery pack is lower than the preset temperature, it indicates that the battery pack needs less heat dissipation, at this time, the battery heat management loop and the motor heat dissipation loop can be communicated through the four-way reversing valve, and a heat dissipation water tank in the motor heat dissipation loop is used for dissipating heat for the battery pack, so that a refrigeration loop does not need to be involved, and energy consumption can be saved; however, when the current temperature of the battery pack is higher than or equal to the preset temperature, it indicates that the heat dissipation capacity requirement of the battery pack is large, and the temperature of the battery pack cannot be timely reduced to the safe temperature only through the heat dissipation water tank, so that the battery pack needs to be inserted into the refrigeration loop, the third heat exchanger 23 is started, and the battery pack is forcibly subjected to heat dissipation operation through the refrigeration loop.
It should be further noted that a temperature sensor for detecting temperature is arranged on the battery pack, the temperature sensor is connected with the controller, and the controller detects the temperature of the battery pack through the temperature sensor, so as to determine the requirement of the battery pack.
Specifically, the controller is further specifically configured to:
detecting a cockpit requirement; when the requirement of the cockpit is a heating requirement, controlling the flow distribution proportion of the first three-way regulating valve 31 to connect the heater with the warm air core body; when the cockpit demand is a cooling demand, the second heat exchanger 22 is controlled to be opened.
The embodiment of the invention also provides an automobile which comprises the heat regulating and controlling system.
It should be noted that, the automobile provided with the heat regulation and control system realizes the coupling of the heat management system of the whole automobile, and carries the vehicle waste heat resources to the places needing heat, such as the cockpit, the battery and the like, thereby improving the utilization rate of energy, furthest reducing the supplement of the electric energy to the heat system of the whole automobile, reducing the number of high-power parts, saving the whole automobile cost, simultaneously reducing the electric quantity consumption and prolonging the endurance mileage of the automobile.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (9)
1. A heat regulation system for a vehicle, comprising:
the system comprises a motor heat dissipation loop, a battery heat management loop, a cockpit heating loop and a refrigerating loop;
the four-way reversing valve is respectively connected with the motor heat dissipation loop and the battery heat management loop; the four-way reversing valve comprises a first state for switching on the motor heat dissipation loop and the battery heat management loop and a second state for switching off the motor heat dissipation loop and the battery heat management loop;
the first heat exchanger is respectively connected with the cockpit heating loop and the battery thermal management loop;
the second heat exchanger is respectively connected with the battery thermal management loop and the refrigeration loop;
and the third heat exchanger is respectively connected with the cockpit heating loop and the refrigerating loop.
2. The thermal conditioning system of claim 1,
the cockpit heating loop includes: the heater, the first three-way regulating valve, the warm air core body and the first water pump are connected through a first main circulating pipeline;
wherein the first heat exchanger is connected to the first three-way regulating valve and the first main circulation line through a first branch line, respectively;
the third heat exchanger is connected in series with the first main circulation line;
the motor heat dissipation loop includes: the heat dissipation water tank, the second water pump, the motor controller and the second three-way regulating valve are connected through a second main circulation pipeline;
the four-way reversing valve is respectively connected with the second three-way regulating valve and the second main circulation pipeline through a second branch pipeline.
3. The thermal conditioning system of claim 2,
the battery thermal management loop comprises: the battery pack and the third water pump are connected through a third main circulation pipeline;
the four-way reversing valve is also connected to the third main circulation pipeline in series, and the first heat exchanger and the second heat exchanger are both connected to the third main circulation pipeline in series;
the refrigeration circuit comprises: an external heat exchanger, a compressor and an evaporator which are connected through a fourth main circulation pipeline;
the second heat exchanger is also connected in parallel with two ends of the evaporator through a third branch pipeline;
the third heat exchanger is also connected in series with the fourth main circulation line.
4. The thermal conditioning system of claim 1, further comprising:
the first water tank is connected with the motor heat dissipation loop and the battery heat management loop and used for supplementing liquid into the motor heat dissipation loop and the battery heat management loop;
and the second water tank is connected with the cockpit heating loop and used for supplementing liquid to the cockpit heating loop.
5. A thermal management system according to claim 2 or 3, further comprising:
and the controller is respectively connected with the four-way reversing valve, the first three-way regulating valve, the second three-way regulating valve, the first heat exchanger, the second heat exchanger and the third heat exchanger and is used for controlling the conduction state of the four-way reversing valve according to the current working condition of a vehicle and the requirement of a battery pack, the flow distribution proportion of the first three-way regulating valve and the second three-way regulating valve and controlling the working states of the first heat exchanger, the second heat exchanger and the third heat exchanger.
6. The thermal conditioning system of claim 5, wherein the controller is specifically configured to:
when the battery pack has a heating requirement and the vehicle is in a charging state, controlling the first heat exchanger to be opened and controlling the flow distribution proportion of the first three-way regulating valve;
when the battery pack has a heating requirement and the vehicle is in a running state, the four-way reversing valve is controlled to be in a first state of conducting the motor heat dissipation loop and the battery heat management loop, and the flow distribution proportion of the second three-way regulating valve is controlled.
7. The thermal conditioning system of claim 5, wherein the controller is further configured to:
when the battery pack has a heat dissipation requirement, detecting the current temperature of the battery pack;
if the current temperature is lower than the preset temperature, controlling the four-way reversing valve to be in a first state of conducting the motor heat dissipation loop and the battery heat management loop; and if the current temperature is higher than or equal to the preset temperature, controlling the third heat exchanger to be started.
8. The thermal conditioning system of claim 5, wherein the controller is further configured to:
detecting a cockpit requirement;
when the requirement of the cockpit is a heating requirement, controlling the flow distribution proportion of the first three-way regulating valve to connect the heater with the warm air core body;
and when the cockpit demand is a refrigeration demand, controlling the second heat exchanger to be started.
9. An automobile, characterized by comprising the heat regulating system according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911047572.4A CN112744046A (en) | 2019-10-30 | 2019-10-30 | Heat regulation and control system and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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