A hydrothermal solar energy new energy vehicle heating system

Abstract

The present invention relates to the field of new energy vehicle technology, and discloses a hydrothermal solar energy heating system for new energy vehicles. The system comprises a control module, a power heat source module, a WPTC heating module, an HVAC module, a solar heating energy storage module, and a battery heating module. The control module is configured to collect a user command data set in real time by monitoring the vehicle's power mode status and the temperature sensors of various components. The control module numbers the user command data set according to its characteristics. The control module selects a heating mode for the cabin and the battery heating module based on the new energy vehicle's power source, lighting conditions, water temperature in the hot water storage tank, and driving status. The system heats the warm air water circuit via the power heat source module, the WPTC heating module, or the solar circulation module, and then exchanges heat within the cabin through the HVAC module to achieve cabin heating. The system classifies the heating mode based on the new energy vehicle's power source, lighting conditions, and driving status, and determines whether the heating mode achieves the heating temperature required by the user command.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles and discloses a hydrothermal solar energy new energy vehicle heating system. Background Art

[0002] New energy vehicles (NEVs) are vehicles powered by new energy sources or a hybrid of traditional fuels and new energy sources. These include electric vehicles, plug-in hybrid vehicles (PHVs), and fuel cell vehicles. Electric vehicles are powered by electricity, with an electric motor driving the wheels. They offer advantages such as zero emissions, low noise, and high efficiency. They have become a significant component of the global automotive market. Plug-in hybrid vehicles (PHVs) are vehicles that utilize both an internal combustion engine and an electric motor. PHVs can travel a certain distance in pure electric mode. When the battery is depleted, the internal combustion engine automatically restarts to continue powering the vehicle. Fuel cell vehicles (FCVs) use hydrogen as fuel, generating electricity through a chemical reaction to drive the electric motor. Fuel cell vehicles offer advantages such as zero emissions and high efficiency, and are considered a key direction for future automotive development.

[0003] Heating systems in new energy vehicles are primarily used to provide a comfortable temperature inside the vehicle during cold weather. With the development of new energy vehicles, their heating systems are constantly being improved and optimized. Currently, new energy vehicle heating systems primarily utilize heat pump air conditioning systems, electric heaters, and PTC heaters. A heat pump air conditioning system utilizes a refrigerant circulating between an evaporator and a condenser to transfer heat. The operating principle of a heat pump air conditioning system primarily involves four processes: compression, expansion, condensation, and evaporation. First, the refrigerant is compressed in the compressor, increasing its temperature and pressure. The high-pressure refrigerant then enters the condenser, where it exchanges heat with the low-temperature external environment and condenses into a liquid. The liquid refrigerant then passes through an expansion valve, where its pressure is reduced and it enters the evaporator, where it exchanges heat with the interior air and evaporates into a gas. Finally, the gaseous refrigerant returns to the compressor, completing the cycle. Throughout this process, the refrigerant continuously absorbs heat from the low-temperature external environment and transfers it to the interior air, thereby heating the vehicle interior. Electric heaters, which convert electrical energy into thermal energy, are primarily used in new energy vehicle heating systems to provide additional heating within the vehicle interior. Electric heaters are typically installed below the vehicle's windshield or in the rear seat area, heating the interior by heating the airflow. Electric heaters operate primarily by passing current through a resistor, generating heat, which is then transferred to the air. When current flows through the resistor, it generates heat, and a fan blows surrounding cold air across it, heating the air. The heated air is then transported through ducts into the vehicle interior, heating the interior. PTC heaters are thermistors with a positive temperature coefficient (PTC), whose resistance increases with increasing temperature. In new energy vehicle heating systems, PTC heaters are primarily used to provide rapid heating. When current flows through a PTC heater, its high resistance generates significant heat, causing the PTC heater to heat up rapidly. As the PTC heater's temperature rises, its resistance gradually decreases, and the heat generated by the current also decreases, maintaining the PTC heater's temperature within a stable range. In this way, PTC heaters provide rapid heating of the vehicle interior. The thermal management of heating systems in new energy vehicles differs significantly from that of traditional fuel vehicles. The heating system of a new energy vehicle must meet the thermal management requirements of the entire vehicle. This includes not only maintaining the temperature of the passenger compartment but also considering the temperature control of key components such as the battery and motor. While thermal management of traditional fuel vehicles focuses on the engine, thermal management of new energy vehicles primarily targets the three-electric system: the motor, electronic control, and battery. This makes the design and implementation of heating systems more complex, and this difference brings with it several drawbacks.

[0004] At present, the heating system of traditional new energy vehicles requires an additional heat source to preheat the battery when the car is cold-started, and also needs to be heated to keep the battery at the optimal operating temperature during driving. In actual use, the heating efficiency is not high, and the energy consumption is high, which can easily affect the vehicle's range. In addition, there is no kinetic energy for heating water cups in the car cabin. When driving outdoors or camping, the traditional heating system cannot provide hot water for drinking or bathing, and external equipment is required to meet the usage needs. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the present invention provides a hydrothermal solar new energy vehicle heating system, which has the advantages of high heating efficiency, wide application, energy saving, environmental protection and strong endurance. It solves the problems of traditional new energy vehicle heating systems such as the need to preheat batteries, low heating efficiency and high energy consumption resulting in shortened cruising range, and inability to heat water cups and provide hot water.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned object, the present invention provides the following technical solutions: a hydrothermal solar new energy vehicle heating system, comprising a control module, a power heat source module, a WPTC heating module, an HVAC module, a solar heating energy storage module and a battery heating module;

[0009] The control module is used to collect user command data sets in real time by monitoring the power mode status of the entire vehicle and the temperature sensors of various components. The control module numbers the user command data sets according to their characteristics. The control module selects the heating mode of the cabin and the battery heating module according to the power source of the new energy vehicle, lighting conditions, water temperature conditions of the heat storage tank and driving status. The warm air water circuit is heated by the power heat source module, the WPTC heating module or the solar heating energy storage module, and the cabin heat is exchanged through the HVAC module to achieve cabin heating. The control module is arranged in the vehicle cabin.

[0010] Furthermore, the control module includes a thermal management controller, and the thermal management controller is arranged on a dashboard in the vehicle cabin;

[0011] The power heat source module is arranged in the engine compartment, and the power heat source module includes a first three-way pipe, an engine heat source, a first water pump, a first water valve and a second water pump;

[0012] The battery heating module includes a kettle, a third water pump, a battery pack and a first heat exchanger;

[0013] The solar heating energy storage module includes a second heat exchanger, a solar water heater, a water tank, a third water valve, a fourth water pump, a fourth water valve, a water supply port, and a water discharge port. The solar water heater, water tank, the fourth water pump, the third water valve, the fourth water valve, the water supply port, and the water discharge port are all arranged on the roof of the car, and the second heat exchanger is arranged in the central armrest inside the car cabin;

[0014] The WPTC heating module includes a WPTC, which is used to convert battery electrical energy into coolant thermal energy, and the WPTC is arranged in the engine compartment;

[0015] The HVAC module includes an HVAC assembly, which transfers the heat of hot water to the vehicle cabin through a heater core and a blower in the HVAC;

[0016] The first end of the first three-way pipe is connected to the first end of the second three-way pipe, the second end of the first three-way pipe is connected to the engine heat source, the first water pump, and the first water valve in sequence, and the third end of the first three-way pipe is connected to the second water pump and the first water valve in sequence; the inlet of the third water pump is connected to the outlet of the kettle, and the outlet of the third water pump is connected to the battery pack, the first heat exchanger, and the inlet of the kettle in sequence. The first heat exchanger is also connected to the second water valve and the second end of the second three-way pipe. The second water valve is also connected to the HVAC assembly and the second heat exchanger. The HVAC assembly is connected to the third end of the second three-way pipe.

[0017] The first water valve is also connected to the WPTC and the second heat exchanger in sequence. The second heat exchanger is also connected to the solar water heater, the water tank, the third water valve, the fourth water pump, and the fourth water valve in sequence. The water supply port is connected to the third water valve, and the water discharge port is connected to the fourth water valve.

[0018] Among them, the valve opening angles of the first water valve, the third water valve and the fourth water valve are automatically adjusted according to the target temperature PID. The first water valve, the third water valve and the fourth water valve have V1, V2 and V3 gears, and the valve opening angles gradually increase from V1 to V2 and V2 to V3.

[0019] Furthermore, the power source of new energy vehicles includes pure electric mode and hybrid mode, the lighting conditions include winter sunlight and winter no sunlight, the driving state includes driving state and idling parking, and the user command data set number includes .

[0020] Furthermore, the new energy vehicle is in pure electric mode and in winter, when there is sunlight, the third water pump and the fourth water pump are turned on, the hot water heated by the solar water heater is heated through the second heat exchanger to heat the warm air water circuit, and the solar heating energy storage module is used according to the user instruction data set number. Auxiliary cabin and battery pack heating.

[0021] Furthermore, the new energy vehicle is in pure electric mode and in winter without sunlight, the fourth water pump is turned off, the third water pump is turned on, the WPTC heats the warm air water circuit, and the WPTC heating module is numbered according to the user instruction data set. Auxiliary cabin and battery pack heating.

[0022] Furthermore, the new energy vehicle is in an idling parking state in pure electric mode, and under the condition of sunlight in winter, the third water pump and the fourth water pump are turned on, the hot water heated by the solar water heater heats the warm air water circuit through the second heat exchanger, and the solar heating energy storage module is connected to the user instruction data set number. Auxiliary cabin and battery pack heating.

[0023] Furthermore, the new energy vehicle is in the idling parking state in pure electric mode and in the winter without sunlight, the third water pump is turned on to heat the warm air water circuit through the WPTC, and the WPTC heating module is based on the user instruction data set number The auxiliary cabin and battery pack are heated. If there is a large demand for hot water, the fourth water pump is turned on and the second heat exchanger indirectly heats the water in the hot water tank.

[0024] Furthermore, when the new energy vehicle is in the idling parking state in the hybrid mode, if water needs to be replenished, the first water pump is turned on, the third water valve is turned on to the V1-V3 mode, the fourth water pump is turned on, the warm air water circuit is heated by the waste heat of the engine, and the second heat exchanger indirectly heats the water in the water tank to achieve the user instruction data set number Require.

[0025] Furthermore, when the solar heating energy storage module is replenished with water, the water replenishment port is connected to the water source, the fourth water pump is turned on, the third water valve is adjusted to the V1-V3 mode, and the fourth water valve is adjusted to the V2-V3 mode. When the solar module is drained, the fourth water pump is turned on, the third water valve is adjusted to the V2-V3 mode, and the fourth water valve is adjusted to the V2-V1 mode.

[0026] Furthermore, when the solar heating energy storage module adjusts the outlet water temperature according to the user instruction data set, the water supply port is connected to cold water, the fourth water pump is turned on, the fourth water valve is adjusted to the V1-V3 mode, and the hot water in the water tank is connected to cold water.

[0027] Compared with the existing technology, the present invention provides a hydrothermal solar energy new energy vehicle heating system with the following beneficial effects:

[0028] 1. After collecting user instructions through the control module, the present invention classifies them according to the power source, lighting conditions and driving status of the new energy vehicle, determines the heating mode, and heats the warm air water circuit and the solar water circuit to reach the heating temperature required by the user instructions.

[0029] 2. The solar heating energy storage module of the present invention can provide hot water supply services to meet the demand for large amounts of hot water outdoors, with high heating efficiency and wide applications.

[0030] 3. The present invention adjusts the valve angles of the first water valve, the third water valve, and the fourth water valve to mix the hot water in the water tank with the external cold water, and flexibly controls the water outlet temperature. The hot water in the solar heating energy storage module can also heat the battery pack and the passenger compartment in winter, thereby achieving optimal battery charging and discharging efficiency and heating energy-saving effects, and increasing the winter endurance of new energy vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the structural system of the present invention. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1 , a hydrothermal solar new energy vehicle heating system, including a control module, a power heat source module, a WPTC heating module, an HVAC module, a solar heating energy storage module and a battery heating module;

[0034] The control module is used to collect user command data sets in real time by monitoring the power mode status of the entire vehicle and the temperature sensors of each component. The control module numbers the user command data sets according to the characteristics of the data sets. The control module selects the heating mode of the cabin and the battery heating module according to the power source of the new energy vehicle, lighting conditions, water temperature conditions of the heat storage tank and driving status. The warm air water circuit is heated by the power heat source module, or the WPTC heating module or the solar heating energy storage module, and the cabin heat is exchanged through the HVAC module to achieve cabin heating. The control module is set in the car cabin.

[0035] The control module is fixedly installed in the car cabin, allowing the driver to freely adjust the heating temperature in the car cabin and heat the warm air water circuit according to user instructions.

[0036] The control module includes a thermal management controller, which is arranged on a dashboard in the vehicle cabin;

[0037] The power heat source module is arranged in the engine compartment, and the power heat source module includes a first three-way pipe, an engine heat source, a first water pump, a first water valve and a second water pump;

[0038] The battery heating module includes a kettle, a third water pump, a battery pack and a first heat exchanger;

[0039] The solar heating energy storage module includes a second heat exchanger, a solar water heater, a water tank, a third water valve, a fourth water pump, a fourth water valve, a water filling port and a water discharge port. The solar water heater, water tank, the fourth water pump, the third water valve, the fourth water valve, the water filling port and the water discharge port are all arranged on the roof of the car, which saves more space in the car and improves driving comfort. At the same time, the water filling port and the water discharge port are located outside the cabin, which is convenient for using hot water during outdoor travel and camping.

[0040] The second heat exchanger is arranged in the central armrest in the vehicle cabin; the WPTC heating module includes WPTC, which is used to convert battery electrical energy into coolant thermal energy, and the WPTC is arranged in the engine compartment.

[0041] The HVAC module includes an HVAC assembly, which transfers the heat of hot water to the vehicle cabin through the heater core and blower in the HVAC.

[0042] The first end of the first three-way pipe is connected to the first end of the second three-way pipe, the second end of the first three-way pipe is connected to the engine heat source, the first water pump, and the first water valve in sequence, and the third end of the first three-way pipe is connected to the second water pump and the first water valve in sequence; the inlet of the third water pump is connected to the outlet of the kettle, and the outlet of the third water pump is connected to the battery pack, the first heat exchanger, and the inlet of the kettle in sequence. The first heat exchanger is also connected to the second water valve and the second end of the second three-way pipe. The second water valve is also connected to the HVAC assembly and the second heat exchanger. The HVAC assembly is connected to the third end of the second three-way pipe.

[0043] The first water valve is also connected to the WPTC and the second heat exchanger in sequence. The second heat exchanger is also connected to the solar water heater, the water tank, the third water valve, the fourth water pump, and the fourth water valve in sequence. The water supply port is connected to the third water valve, and the water discharge port is connected to the fourth water valve.

[0044] The valve opening angles of the first water valve, the third water valve and the fourth water valve are automatically adjusted according to the target temperature PID. The first water valve, the third water valve and the fourth water valve have three gears: V1, V2 and V3. The valve opening angles gradually increase from V1 to V2 and V2 to V3.

[0045] New energy vehicle power sources include pure electric mode and hybrid mode, lighting conditions include winter sunlight and winter no sunlight, driving status includes driving status and idling parking, user command data set numbers include .

[0046] When the new energy vehicle is in pure electric mode and there is sunlight in winter, the third water pump and the fourth water pump are turned on. The hot water heated by the solar water heater is heated by the second heat exchanger to heat the warm air water circuit. The solar heating energy storage module is based on the user instruction data set number. Auxiliary cabin and battery pack heating.

[0047] When the new energy vehicle is in pure electric mode and there is no sunlight in winter, the fourth water pump is turned off and the third water pump is turned on. The WPTC heats the warm air water circuit. The WPTC heating module is numbered according to the user's instruction data set. Auxiliary cabin and battery pack heating.

[0048] When the new energy vehicle is in pure electric mode and idling state, and there is sunlight in winter, the third and fourth water pumps are turned on, and the hot water heated by the solar water heater is heated through the second heat exchanger to heat the warm air water circuit. The solar heating energy storage module is numbered according to the user's instruction data set. Auxiliary cabin and battery pack heating.

[0049] When a new energy vehicle is in pure electric mode and idling state and there is no sunlight in winter, the third water pump is turned on and the warm air water circuit is heated through the WPTC. The WPTC heating module is numbered according to the user's instruction data set. The auxiliary cabin and battery pack are heated. If there is a large demand for hot water, the fourth water pump is turned on and the second heat exchanger indirectly heats the water in the hot water tank.

[0050] When a new energy vehicle is in idling parking state in hybrid mode, if water needs to be replenished, the first water pump is turned on, the third water valve is turned on to V1-V3 mode, the fourth water pump is turned on, and the warm air water circuit is heated by the residual heat of the engine. The second heat exchanger indirectly heats the water in the water tank to achieve the user instruction data set number Require.

[0051] When the solar heating energy storage module is replenished with water, the water replenishment port is connected to the water source, the fourth water pump is turned on, the third water valve is adjusted to the V1-V3 mode, and the fourth water valve is adjusted to the V2-V3 mode. When the solar module is drained, the fourth water pump is turned on, the third water valve is adjusted to the V2-V3 mode, and the fourth water valve is adjusted to the V2-V1 mode.

[0052] When the solar heating energy storage module adjusts the outlet water temperature according to the user instruction data set, the water supply port is connected to cold water, the fourth water pump is turned on, the fourth water valve is adjusted to the V1-V3 mode, and the hot water in the water tank is connected to cold water externally. The hot water supply is realized according to the opening angle of the regulating valve to achieve the function of arbitrarily adjusting the outlet water temperature.

[0053] The second heat exchanger is fixedly installed in the center of the cabin. The heat exchanger is a hollow cylindrical structure, which is similar to a cup holder structure, making it convenient to heat water cups. The heating circuit is fixedly connected to the input end of the second heat exchanger. When hot water in any circuit of the heating circuit and the solar water circuit flows through the second heat exchanger, the cup holder heating function can be realized.

[0054] The cup-holder heat exchanger designed into the warm air water circuit of this invention facilitates heat exchange between the heating circulation waterway and the battery waterway, and can also provide a cup heating service, addressing passengers' need for hot water. The solar heating energy storage module can also provide a hot water supply service, addressing the large-scale demand for hot water outdoors, offering high heating efficiency and a wide range of applications. The control module automatically adjusts the valve angle, allowing for flexible control of the outlet water temperature between the hot water in the water tank and the external cold water supply. The hot water in the solar heating energy storage module can also heat the battery pack and the passenger compartment in winter, achieving optimal battery charging and discharging efficiency and heating energy savings, thereby increasing the winter endurance of new energy vehicles.

[0055] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A hydrothermal solar new energy vehicle heating system, characterized by: It includes control module, power heat source module, WPTC heating module, HVAC module, solar heating energy storage module and battery heating module; The control module is used to collect user command data sets in real time by monitoring the power mode status of the entire vehicle and the temperature sensors of various components. The control module numbers the user command data sets according to their characteristics. The control module selects a heating mode for the cabin and the battery heating module based on the power source of the new energy vehicle, lighting conditions, water temperature conditions of the hot water storage tank, and driving status. The heating water circuit is heated by the power heat source module, the WPTC heating module, or the solar heating energy storage module, and then the cabin heat is exchanged through the HVAC module to achieve cabin heating. The control module is arranged in the vehicle cabin; The control module includes a thermal management controller, which is arranged on a dashboard in the vehicle cabin; The power heat source module is arranged in the engine compartment, and the power heat source module includes a first three-way pipe, an engine heat source, a first water pump, a first water valve and a second water pump; The battery heating module includes a kettle, a third water pump, a battery pack and a first heat exchanger; The solar heating energy storage module includes a second heat exchanger, a solar water heater, a water tank, a third water valve, a fourth water pump, a fourth water valve, a water filling port, and a water discharge port. The solar water heater, water tank, fourth water pump, third water valve, fourth water valve, water filling port, and water discharge port are all arranged on the roof of the car. The second heat exchanger is arranged in the central armrest in the car cabin. The second heat exchanger is a hollow cylindrical structure and is used to heat water cups. The WPTC heating module includes a WPTC, which is used to convert battery electrical energy into coolant thermal energy, and the WPTC is arranged in the engine compartment; The HVAC module includes an HVAC assembly, which transfers the heat of hot water to the vehicle cabin through a heater core and a blower in the HVAC; The first end of the first three-way pipe is connected to the first end of the second three-way pipe, the second end of the first three-way pipe is connected to the engine heat source, the first water pump, and the first water valve in sequence, and the third end of the first three-way pipe is connected to the second water pump and the first water valve in sequence; the inlet of the third water pump is connected to the outlet of the kettle, and the outlet of the third water pump is connected to the battery pack, the first heat exchanger, and the inlet of the kettle in sequence. The first heat exchanger is also connected to the second water valve and the second end of the second three-way pipe. The second water valve is also connected to the HVAC assembly and the second heat exchanger. The HVAC assembly is connected to the third end of the second three-way pipe. The first water valve is also connected to the WPTC and the second heat exchanger in sequence. The second heat exchanger is also connected to the solar water heater, the water tank, the third water valve, the fourth water pump, and the fourth water valve in sequence. The water supply port is connected to the third water valve, and the water discharge port is connected to the fourth water valve. The valve opening angles of the first water valve, the third water valve, and the fourth water valve are automatically adjusted according to the target temperature PID. The first water valve, the third water valve, and the fourth water valve have V1, V2, and V3 gears, and the valve opening angles gradually increase from V1 to V2 and from V2 to V3. New energy vehicle power sources include pure electric mode and hybrid mode, lighting conditions include winter sunlight and winter no sunlight, driving status includes driving status and idling parking, user command data set numbers include ; After collecting user instructions, the control module classifies them according to the new energy vehicle's power source, lighting conditions and driving status, determines the heating method, and heats the warm air water circuit and solar water circuit to reach the heating temperature required by the user's instructions.

2. A hydrothermal solar new energy vehicle heating system according to claim 1, characterized in that: The new energy vehicle is in pure electric mode and under the condition of sunlight in winter, the third water pump and the fourth water pump are turned on. The hot water heated by the solar water heater is heated by the second heat exchanger to heat the warm water circuit. The solar heating energy storage module is based on the user instruction data set number. Auxiliary cabin and battery pack heating.

3. The hydrothermal solar energy new energy vehicle heating system according to claim 1, characterized in that: The new energy vehicle is in pure electric mode and in winter without sunlight, the fourth water pump is turned off, the third water pump is turned on, the WPTC heats the warm air water circuit, and the WPTC heating module is numbered according to the user instruction data set. Auxiliary cabin and battery pack heating.

4. The hydrothermal solar energy new energy vehicle heating system according to claim 1, characterized in that: The new energy vehicle is in the idling parking state in pure electric mode and under the condition of sunlight in winter, the third water pump and the fourth water pump are turned on, the hot water heated by the solar water heater is heated through the second heat exchanger to heat the warm air water circuit, and the solar heating energy storage module is based on the user instruction data set number Auxiliary cabin and battery pack heating.

5. The hydrothermal solar new energy vehicle heating system according to claim 1, characterized in that: The new energy vehicle is in pure electric mode and idle parking state, and under the condition of no sunlight in winter, the third water pump is turned on to heat the warm air water circuit through WPTC. The WPTC heating module is based on the user instruction data set number The auxiliary cabin and battery pack are heated. When there is a large demand for hot water, the fourth water pump is turned on and the second heat exchanger indirectly heats the water in the hot water tank.

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