CN113733851B - Partition thermal management control system suitable for range-extending hybrid vehicle type - Google Patents

Partition thermal management control system suitable for range-extending hybrid vehicle type Download PDF

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CN113733851B
CN113733851B CN202111113618.5A CN202111113618A CN113733851B CN 113733851 B CN113733851 B CN 113733851B CN 202111113618 A CN202111113618 A CN 202111113618A CN 113733851 B CN113733851 B CN 113733851B
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loop
row
passenger cabin
range
battery
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CN113733851A (en
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郭艳萍
吴锐
卢佳
王朝
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Dongfeng Motor Corp
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Dongfeng Motor Corp
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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
    • 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
    • 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
    • B60H1/004—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for vehicles having a combustion engine and electric drive means, e.g. hybrid electric vehicles
    • 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
    • B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
    • 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
    • B60H1/04—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant
    • B60H1/06—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant directly from main radiator
    • 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
    • B60H2001/00307—Component temperature regulation using a liquid flow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention discloses a zoning thermal management control system suitable for a range-extended hybrid electric vehicle type, which belongs to the technical field of hybrid electric vehicles, wherein a pure electric mode thermal management loop is not influenced by an engine loop in a range-extended mode, and comprises a passenger cabin front-row refrigerating/heating loop, a passenger cabin rear-row refrigerating/heating loop and a battery refrigerating/heating loop in the pure electric mode, so that zoning control and battery control of the passenger cabin thermal management loop are realized; the range-extending mode heat management loop comprises an engine warming loop, a passenger cabin front-row refrigerating/heating loop, a passenger cabin rear-row refrigerating/heating loop and a battery refrigerating/heating loop in the range-extending mode, and is used for controlling heat distribution of engine heat generated in the passenger cabin front row, the passenger cabin rear row and the battery loop, so that full utilization of engine waste heat is realized. The circulation loop of the thermal management system can be reasonably and effectively controlled according to the actual working condition requirements, the actual running performance of the thermal management system is effectively improved, and the multiple purposes of energy conservation, comfortableness and cost reduction are achieved.

Description

Partition thermal management control system suitable for range-extending hybrid vehicle type
Technical Field
The invention belongs to the technical field of hybrid vehicles, and particularly relates to a zoning thermal management control system suitable for a range-extended hybrid vehicle type.
Background
Currently, with energy utilization and environmental protection requirements, pure electric vehicles are the trend and direction of traffic development, and the technical bottleneck of the pure electric vehicles is charging and mileage concern faced by users. The hybrid electric vehicle is a new energy vehicle with great advantages for solving the anxiety of the users of the electric vehicle at present. The heat management technology is characterized in that: the battery and the engine complement each other, make up for the shortages, and the energy utilization efficiency of the hybrid electric vehicle is further improved by mutual matching, so that the hybrid electric vehicle is one of the research directions with the highest lifting potential at present.
When the existing hybrid electric vehicle engine runs, 60% -70% of heat is dissipated through an internal circulation system, and cannot be fully utilized. Therefore, how to reasonably utilize the part of waste heat energy is the most effective way to save energy and reduce cost.
Disclosure of Invention
Aiming at the defects or improvement demands of the prior art, the invention provides a zoned thermal management control system suitable for a range-extended hybrid vehicle type, which can reasonably and effectively control a circulation loop of the thermal management system according to the demands of actual working conditions, effectively improve the actual running performance of the thermal management system and realize multiple purposes of energy conservation, comfortableness and cost reduction.
In order to achieve the above object, the present invention provides a zoning thermal management control system suitable for a range-extending hybrid vehicle type, comprising: pure electric mode thermal management loop and range-extending mode thermal management loop;
the pure electric mode thermal management loop is not influenced by an engine loop in a range-extended mode, and comprises a passenger cabin front-row refrigerating loop in a pure electric mode, a passenger cabin front-row heating loop in a pure electric mode, a passenger cabin rear-row refrigerating loop in a pure electric mode, a passenger cabin rear-row heating loop in a pure electric mode, a battery refrigerating loop in a pure electric mode and a battery heating loop in a pure electric mode, so that passenger cabin thermal management loop partition control and battery control are realized;
the range-extending mode heat management loop comprises an engine warming loop in a range-extending mode, a passenger cabin front-row refrigerating loop in a range-extending mode, a passenger cabin front-row heating loop in a range-extending mode, a passenger cabin rear-row refrigerating loop in a range-extending mode, a passenger cabin rear-row heating loop in a range-extending mode, a battery refrigerating loop in a range-extending mode and a battery heating loop in a range-extending mode, and is used for controlling heat distribution of heat generated by an engine in the passenger cabin front row, the passenger cabin rear row and the battery loop, so that full utilization of waste heat of the engine is realized.
In some optional embodiments, the passenger cabin front-row refrigeration loop in the pure electric mode is composed of a condenser, an electric compressor, a first electromagnetic valve, a first thermal expansion valve and a front-row evaporator which are sequentially connected in series through refrigerant pipelines;
the passenger cabin back-row refrigerating loop in the pure electric mode is composed of a condenser, an electric compressor, a second electromagnetic valve, a second thermal expansion valve and a back-row evaporator which are sequentially connected in series through refrigerant pipelines;
the battery refrigerating loop in the pure electric mode is composed of a condenser, an electric compressor, an electronic expansion valve, a first heat exchanger and a battery which are sequentially connected in series through refrigerant pipelines.
In some optional embodiments, the front-row heating circuit of the passenger cabin in the pure electric mode is composed of a water heater, a front-row warm air core, a first proportional three-way valve, a one-way valve and a first expansion kettle which are sequentially connected in series by a cooling liquid pipeline;
the passenger cabin back-row heating loop in the pure electric mode is composed of a water heater, a back-row warm air core, a second proportional three-way valve, a one-way valve and a first expansion kettle which are sequentially connected in series through cooling liquid pipelines.
In some optional embodiments, the battery heating circuit in the pure electric mode is composed of a water heater, a front-row warm air core, a 1-port to 3-port circuit in a first proportional three-way valve, a second heat exchanger, a battery water pump, a second expansion kettle, a one-way valve and a first expansion kettle which are sequentially connected in series by a cooling liquid pipeline; or the water heater, the rear exhaust warm air core, a 1-port to 3-port loop in the second proportional three-way valve, the second heat exchanger, the battery water pump, the second expansion kettle, the one-way valve and the first expansion kettle which are sequentially connected in series by the cooling liquid pipeline.
In some alternative embodiments, the extended range mode engine warm-up circuit includes a passenger compartment, a battery heating circuit, and an engine warm-up circuit;
the passenger cabin and the battery heating loop are composed of a water heater, a front warm air core, a first proportional three-way valve and a one-way valve which are sequentially connected in series by a cooling liquid pipeline; or the water heater, the rear warm air core, the second proportional three-way valve and the one-way valve which are sequentially connected in series by the cooling liquid pipeline;
the engine preheating loop is composed of an engine heat management module, an engine and a first expansion kettle.
In some optional embodiments, the front-row heating circuit of the passenger cabin in the range-extending mode is composed of an engine, a third electromagnetic valve, a front-row warm air core, a first proportional three-way valve and a first expansion kettle which are sequentially connected in series;
the rear-row heating loop of the passenger cabin in the range-extending mode is composed of an engine, a third electromagnetic valve, a rear-row warm air core body, a second proportional three-way valve and a first expansion kettle which are sequentially connected in series.
In some optional embodiments, the battery heating circuit in the range-increasing mode is composed of a front-row warm air core, a 1-to-3-port circuit in a first proportional three-way valve, a second heat exchanger, a battery water pump, a second expansion kettle, a first expansion kettle, an engine and a third electromagnetic valve which are sequentially connected in series, or is composed of a rear-row warm air core, a 1-to-3-port circuit in a second proportional three-way valve, a second heat exchanger, a battery water pump, a second expansion kettle, a first expansion kettle, an engine and a third electromagnetic valve which are sequentially connected in series.
In some optional embodiments, the passenger cabin front-row refrigeration loop in the range-extending mode is composed of a condenser, an electric compressor, a first electromagnetic valve, a first thermal expansion valve and a front-row evaporator which are sequentially connected in series through refrigerant pipelines;
the passenger cabin back-row refrigerating loop in the range-extending mode is composed of a condenser, an electric compressor, a second electromagnetic valve, a second thermal expansion valve and a back-row evaporator which are sequentially connected in series through refrigerant pipelines;
the battery refrigerating loop in the range-extending mode is composed of a condenser, an electric compressor, an electronic expansion valve, a first heat exchanger and a battery which are sequentially connected in series through refrigerant pipelines.
In general, the above technical solutions conceived by the present invention, compared with the prior art, enable the following beneficial effects to be obtained:
the invention comprises thermal management control in pure electric mode and extended range mode, and heating loop and refrigerant loop control are respectively carried out according to the thermal management requirements of the passenger cabin and the battery. (1) The passenger cabin rear heat rejection management loop is added in the loop based on the waste heat utilization, the vehicle heat load demand and the rear passenger comfort, the passenger cabin heat management loop is controlled to be divided into front exhaust and rear exhaust, and the waste heat of the engine is fully utilized. (2) Meanwhile, when the ambient temperature is less than or equal to minus 20 ℃, the engine warmup speed is low, the water temperature at the inlet of the battery can not meet the requirement, the preheating is invalid, and the water heater is adopted for directly heating the battery, heating the passenger cabin and warming up the engine, so that the vehicle is started normally. (3) The electromagnetic valve, the one-way valve and other parts with lower cost are newly added to control the independent heat management loop control of the pure electric mode and the extended range mode. The invention can independently and effectively control the circulation loop of the thermal management system according to the actual working condition requirement, effectively improve the actual running performance of the thermal management system and realize the multiple purposes of energy conservation, comfort and cost reduction.
Drawings
FIG. 1 is a schematic diagram of a zoned thermal management control system for an extended range hybrid electric vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a thermal management loop in pure mode according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an engine warm-up circuit in a range-extending mode according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a heating circuit in a range-extending mode according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a refrigeration circuit in a range-extending mode according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
In the examples of the present invention, "first," "second," etc. are used to distinguish between different objects and are not necessarily used to describe a particular order or sequence.
Examples
Fig. 1 is a schematic structural diagram of a zoned thermal management control system of a range-extending hybrid electric vehicle according to an embodiment of the present invention, including: pure electric mode thermal management loop and range-extending mode thermal management loop;
the pure electric mode thermal management loop is not influenced by the engine loop in the range-extended mode, and comprises a passenger cabin front-row refrigerating loop in the pure electric mode, a passenger cabin front-row heating loop in the pure electric mode, a passenger cabin rear-row refrigerating loop in the pure electric mode, a passenger cabin rear-row heating loop in the pure electric mode, a battery refrigerating loop in the pure electric mode and a battery heating loop in the pure electric mode, so that the passenger cabin thermal management loop is controlled in a partitioning mode and the battery is controlled;
the range-extending mode heat management loop comprises an engine warming loop in a range-extending mode, a passenger cabin front-row refrigerating loop in a range-extending mode, a passenger cabin front-row heating loop in a range-extending mode, a passenger cabin rear-row refrigerating loop in a range-extending mode, a passenger cabin rear-row heating loop in a range-extending mode, a battery refrigerating loop in a range-extending mode and a battery heating loop in a range-extending mode, and is used for controlling heat distribution of heat generated by an engine in the passenger cabin front row, the passenger cabin rear row and the battery loop, so that full utilization of waste heat of the engine is realized.
The front-side cooling/heating circuit of the passenger compartment, the rear-side cooling/heating circuit of the passenger compartment, the battery cooling/heating circuit, and the like will be described below, respectively.
As shown in fig. 2, the thermal management circuit in pure mode, which is not affected by the engine circuit in extended range mode, includes:
(1) Refrigeration circuit in pure electric mode: the refrigerating circuit can be switched on and off through the electronic expansion valve and the electromagnetic valve under the pure electric mode, and the conditions of independent refrigerating of front row/rear row of the passenger cabin, independent refrigerating of batteries and mixed refrigerating are judged according to the actual environment working conditions, and the structures of the refrigerating circuits are as follows:
(a) Passenger cabin front-row refrigeration circuit in pure electric mode: the device consists of a condenser, an electric compressor, a first electromagnetic valve, a first thermal expansion valve and a front evaporator which are sequentially connected in series by refrigerant pipelines;
(b) Passenger cabin back row refrigerating circuit in pure electric mode: the device consists of a condenser, an electric compressor, a second electromagnetic valve, a second thermal expansion valve and a back-row evaporator which are sequentially connected in series by refrigerant pipelines;
(c) Battery refrigeration circuit in pure electric mode: the device consists of a condenser, an electric compressor, an electronic expansion valve, a first heat exchanger and a battery which are sequentially connected in series by refrigerant pipelines.
(2) Heating circuit in pure electric mode: the heating loop in the pure electric mode is closed through a third electromagnetic valve, the loop is opened and closed through a first proportional three-way valve, a second proportional three-way valve and a one-way valve, the conditions of independent heating of front row/rear row of passenger cabin, independent heating of battery and mixed heating are judged according to the actual environment working conditions, and the structures of the heating loops are as follows:
(a) Passenger cabin front-row heating loop in pure electric mode: the water heater, the front warm air core, the first proportional three-way valve, the one-way valve and the first expansion kettle are sequentially connected in series by a cooling liquid pipeline;
(b) Passenger cabin back row heating circuit under pure electric mode: the water heater, the rear exhaust warm air core, the second proportional three-way valve, the one-way valve and the first expansion kettle are sequentially connected in series by a cooling liquid pipeline;
(c) Battery heating circuit in pure electric mode: the water heater, the front-row warm air core, a 1-port to 3-port loop in the first proportional three-way valve, the second heat exchanger, the battery water pump, the second expansion kettle, the one-way valve and the first expansion kettle are sequentially connected in series through a cooling liquid pipeline; or the water heater, the rear exhaust warm air core, a 1-port to 3-port loop in the second proportional three-way valve, the second heat exchanger, the battery water pump, the second expansion kettle, the one-way valve and the first expansion kettle which are sequentially connected in series by the cooling liquid pipeline.
In this embodiment, the thermal management loop in the extended-range mode controls heat distribution of heat generated by the engine in front of the passenger cabin, back of the passenger cabin and the battery loop through the third electromagnetic valve, the first electromagnetic valve, the second electromagnetic valve and the electronic expansion valve, so as to fully utilize waste heat of the engine, and the specific loop structure is as follows:
(1) As shown in fig. 3, the engine warmup circuit in the extended-range mode: when the ambient temperature is less than or equal to minus 20 ℃, the engine warmup speed is low, the water temperature at the inlet of the battery can not reach the requirement, and the preheating is invalid. The water heater is adopted to directly heat the battery, heat the passenger cabin and warm the engine, so that the vehicle is started normally.
The engine warming-up loop in the range-extending mode comprises a passenger cabin, a battery heating loop and an engine preheating loop;
the passenger cabin and the battery heating loop are composed of a water heater, a front warm air core, a first proportional three-way valve and a one-way valve which are sequentially connected in series by a cooling liquid pipeline; or the water heater, the rear warm air core, the second proportional three-way valve and the one-way valve which are sequentially connected in series by the cooling liquid pipeline;
the opening and closing of the first proportional three-way valve is judged according to the outlet temperature of the front warm air core body and the inlet water temperature of the battery, and the opening and closing passage (1-2 or 1-3) and the opening degree of the first proportional three-way valve are judged to meet the heating requirements of the passenger cabin and the battery.
The opening and closing of the second proportional three-way valve is judged according to the outlet temperature of the rear-row warm air core body and the inlet water temperature of the battery, and the opening and closing passage (1-2 or 1-3) and the opening degree of the second proportional three-way valve are judged to meet the heating requirements of the passenger cabin and the battery.
The engine preheating loop is composed of an engine heat management module, an engine and a first expansion kettle.
(2) Heating loop in extended range mode: as shown in fig. 4, the waste heat utilization of the engine is realized by controlling the third electromagnetic valve, and the requirements of front-row/rear-row heating and battery heating of the passenger cabin are met. The water heater does not participate in this process. The front row/rear row of the passenger cabin and the battery are heated independently or in a mixed mode through switching of the first proportional three-way valve and the second proportional three-way valve, and a specific heating loop is as follows:
(a) The front-row heating loop of the passenger cabin in the range-extending mode is composed of an engine, a third electromagnetic valve, a front-row warm air core body, a first proportional three-way valve and a first expansion kettle which are sequentially connected in series;
(b) The rear-row heating loop of the passenger cabin in the range-extending mode is composed of an engine, a third electromagnetic valve, a rear-row warm air core body, a second proportional three-way valve and a first expansion kettle which are sequentially connected in series.
(c) The battery heating loop in the range-extending mode is composed of a front-row warm air core, a 1-port to 3-port loop in a first proportional three-way valve, a second heat exchanger, a battery water pump, a second expansion kettle, a first expansion kettle, an engine and a third electromagnetic valve which are sequentially connected in series, or is composed of a rear-row warm air core, a 1-port to 3-port loop in a second proportional three-way valve, a second heat exchanger, a battery water pump, a second expansion kettle, a first expansion kettle, an engine and a third electromagnetic valve which are sequentially connected in series.
(d) The passenger cabin and battery mixed heating loop in the range-extending mode is composed of a front-row warm air core, a first proportional three-way valve, a second heat exchanger, a battery water pump, a second expansion kettle, a first expansion kettle, an engine and a third electromagnetic valve which are sequentially connected in series; or the back row warm air core body, the second proportional three-way valve, the second heat exchanger, the battery water pump, the second expansion kettle, the first expansion kettle, the engine and the third electromagnetic valve are sequentially connected in series.
The first proportional three-way valve judges the opening and closing passages (1-2 or 1-3) and the opening of the first proportional three-way valve according to the outlet temperature of the front warm air core body and the inlet water temperature of the battery to meet the heating requirements of the passenger cabin and the battery;
the second proportional three-way valve judges the opening and closing passages (1-2 or 1-3) and the opening degree of the second proportional three-way valve according to the outlet temperature of the rear warm air core body and the inlet water temperature of the battery so as to meet the heating requirements of the passenger cabin and the battery.
(3) As shown in fig. 5, the refrigeration circuit in extended range mode: the refrigerating loop can be switched on and off through the electronic expansion valve in the range extending mode, and the conditions of independent refrigerating of front row/rear row of the passenger cabin, independent refrigerating of batteries and mixed refrigerating are judged according to the actual environment working conditions. The engine waste heat loop adopts an engine heat management module, a mechanical water pump and a high-temperature radiator loop to exchange heat, so that the normal operation of the engine is ensured, and the specific refrigeration loop is as follows:
(a) The passenger cabin front-row refrigerating loop in the range-extending mode is composed of a condenser, an electric compressor, a first electromagnetic valve, a first thermal expansion valve and a front-row evaporator which are sequentially connected in series through refrigerant pipelines;
(b) The passenger cabin back-row refrigerating loop in the range-extending mode is composed of a condenser, an electric compressor, a second electromagnetic valve, a second thermal expansion valve and a back-row evaporator which are sequentially connected in series through refrigerant pipelines;
(c) The battery refrigerating loop in the range-extending mode is composed of a condenser, an electric compressor, an electronic expansion valve, a first heat exchanger and a battery which are sequentially connected in series through refrigerant pipelines.
As a preferred embodiment, the heating ratio of the front passenger cabin and rear passenger cabin circuit and the battery circuit is controlled by the opening degree of the first proportional three-way valve/the second proportional three-way valve, namely, the opening degree of 1-2/1-3 ports of the three-way valve is controlled by the outlet temperature of the front warm air core and the rear warm air core and the inlet temperature of the battery to realize heat distribution, as shown in the following table 1:
TABLE 1
Figure BDA0003274666760000081
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Figure BDA0003274666760000091
It should be noted that each step/component described in the present application may be split into more steps/components, or two or more steps/components or part of the operations of the steps/components may be combined into new steps/components, as needed for implementation, to achieve the object of the present invention.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims (6)

1. A zoning thermal management control system suitable for a range-extending hybrid vehicle model, comprising: pure electric mode thermal management loop and range-extending mode thermal management loop;
the pure electric mode thermal management loop is not influenced by an engine loop in a range-extended mode, and comprises a passenger cabin front-row refrigerating loop in a pure electric mode, a passenger cabin front-row heating loop in a pure electric mode, a passenger cabin rear-row refrigerating loop in a pure electric mode, a passenger cabin rear-row heating loop in a pure electric mode, a battery refrigerating loop in a pure electric mode and a battery heating loop in a pure electric mode, so that passenger cabin thermal management loop partition control and battery control are realized;
the range-extending mode thermal management loop comprises an engine warming loop in a range-extending mode, a passenger cabin front-row refrigerating loop in a range-extending mode, a passenger cabin front-row heating loop in a range-extending mode, a passenger cabin rear-row refrigerating loop in a range-extending mode, a passenger cabin rear-row heating loop in a range-extending mode, a battery refrigerating loop in a range-extending mode and a battery heating loop in a range-extending mode, and is used for controlling heat distribution of heat generated by an engine in the passenger cabin front row, the passenger cabin rear row and the battery loop so as to realize full utilization of waste heat of the engine;
the front-row heating circuit of the passenger cabin in the pure electric mode is composed of a water heater, a front-row warm air core, a first proportional three-way valve, a one-way valve and a first expansion kettle which are sequentially connected in series through a cooling liquid pipeline;
the passenger cabin back-row heating loop in the pure electric mode is composed of a water heater, a back-row warm air core, a second proportional three-way valve, a one-way valve and a first expansion kettle which are sequentially connected in series through a cooling liquid pipeline;
the battery heating loop in the pure electric mode is composed of a water heater, a front-row warm air core, a 1-port to 3-port loop in a first proportional three-way valve, a second heat exchanger, a battery water pump, a second expansion kettle, a one-way valve and a first expansion kettle which are sequentially connected in series by a cooling liquid pipeline; or the water heater, the rear exhaust warm air core, a 1-port to 3-port loop in the second proportional three-way valve, the second heat exchanger, the battery water pump, the second expansion kettle, the one-way valve and the first expansion kettle which are sequentially connected in series by the cooling liquid pipeline.
2. The system of claim 1, wherein the passenger cabin front-row refrigeration circuit in the pure electric mode is composed of a condenser, an electric compressor, a first electromagnetic valve, a first thermal expansion valve and a front-row evaporator which are sequentially connected in series by refrigerant pipelines;
the passenger cabin back-row refrigerating loop in the pure electric mode is composed of a condenser, an electric compressor, a second electromagnetic valve, a second thermal expansion valve and a back-row evaporator which are sequentially connected in series through refrigerant pipelines;
the battery refrigerating loop in the pure electric mode is composed of a condenser, an electric compressor, an electronic expansion valve, a first heat exchanger and a battery which are sequentially connected in series through refrigerant pipelines.
3. The system of claim 1 or 2, wherein the extended range mode engine warm-up circuit comprises a passenger compartment, a battery warm-up circuit, and an engine warm-up circuit;
the passenger cabin and the battery heating loop are composed of a water heater, a front warm air core, a first proportional three-way valve and a one-way valve which are sequentially connected in series by a cooling liquid pipeline; or the water heater, the rear warm air core, the second proportional three-way valve and the one-way valve which are sequentially connected in series by the cooling liquid pipeline;
the engine preheating loop is composed of an engine heat management module, an engine and a first expansion kettle.
4. The system of claim 3, wherein the front-row heating circuit of the passenger compartment in the range-extending mode is composed of an engine, a third electromagnetic valve, a front-row warm air core, a first proportional three-way valve and a first expansion kettle which are sequentially connected in series;
the rear-row heating loop of the passenger cabin in the range-extending mode is composed of an engine, a third electromagnetic valve, a rear-row warm air core body, a second proportional three-way valve and a first expansion kettle which are sequentially connected in series.
5. The system of claim 4, wherein the battery heating circuit in the range-extended mode is comprised of a front-row warm air core, a 1-to-3-port circuit in a first proportional three-way valve, a second heat exchanger, a battery water pump, a second expansion kettle, a first expansion kettle, an engine, and a third solenoid valve, which are sequentially connected in series, or is comprised of a rear-row warm air core, a 1-to-3-port circuit in a second proportional three-way valve, a second heat exchanger, a battery water pump, a second expansion kettle, a first expansion kettle, an engine, and a third solenoid valve, which are sequentially connected in series.
6. The system of claim 5, wherein the passenger cabin front-row refrigeration circuit in the range-extending mode is composed of a condenser, an electric compressor, a first electromagnetic valve, a first thermal expansion valve and a front-row evaporator which are sequentially connected in series by refrigerant pipelines;
the passenger cabin back-row refrigerating loop in the range-extending mode is composed of a condenser, an electric compressor, a second electromagnetic valve, a second thermal expansion valve and a back-row evaporator which are sequentially connected in series through refrigerant pipelines;
the battery refrigerating loop in the range-extending mode is composed of a condenser, an electric compressor, an electronic expansion valve, a first heat exchanger and a battery which are sequentially connected in series through refrigerant pipelines.
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CN109968944A (en) * 2018-12-21 2019-07-05 浙江吉利新能源商用车有限公司 A kind of heating system and control method of extended-range hybrid vehicle
CN213199402U (en) * 2020-04-05 2021-05-14 西安真铎科技有限公司 Extended range type electric vehicle composite heat management system
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