CN110978945A - Range-extending type heat pipe system of electric vehicle and method thereof - Google Patents
Range-extending type heat pipe system of electric vehicle and method thereof Download PDFInfo
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- CN110978945A CN110978945A CN201911157001.6A CN201911157001A CN110978945A CN 110978945 A CN110978945 A CN 110978945A CN 201911157001 A CN201911157001 A CN 201911157001A CN 110978945 A CN110978945 A CN 110978945A
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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
- B60H1/004—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
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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
- B60H2001/00307—Component temperature regulation using a liquid flow
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Abstract
The invention discloses a range-extended thermal management system and a range-extended thermal management method, based on a range-extended electric car thermal management system, the waste heat recovery of an engine and a motor is realized, and simultaneously, the waste heat of the engine or the waste heat of the motor can be distributed to a battery pack and/or a cockpit as required, the waste heat of the motor and the engine is recovered to the maximum extent and is used for heating the battery pack and the cockpit, and the energy consumption of a PTC heater is reduced; when heat is supplied to the battery pack and the cockpit, the waste heat of the motor or the waste heat of the engine can be distributed on the battery pack and the air heating core body in different proportions by controlling the rotating speed of the electronic water pump III.
Description
Technical Field
The invention belongs to the technical field of automobiles, and particularly relates to a heat pipe system of an extended-range electric car and a method thereof.
Background
Along with the development of new energy vehicles, the extended range electric vehicle has the driving experience of a pure electric vehicle and the energy supplement convenience of a fuel vehicle, so that the mileage anxiety of the pure electric vehicle is solved, the extended range electric vehicle is more and more popular in the market, and domestic and foreign automobile manufacturers begin to increase the research and development of the extended range electric vehicle. The thermal management system of the extended range electric vehicle not only undertakes thermal management of an air conditioning system, cooling of an electric drive system and cooling of an engine system, but also undertakes thermal management of a battery, and the importance of the thermal management system is self-evident.
At present, the heat management systems of the range-extended electric vehicles at home and abroad are divided into two types according to the heat management modes of batteries, one type is a battery liquid cooling type range-extended electric vehicle heat management system represented by an ideal one, and the battery pack is cooled and heated by adopting cooling liquid for indirect cooling and heating; the ideal one-battery liquid cooling type extended range electric vehicle heat management system has the following characteristics: 1. in the pure electric mode, the heating source of the air conditioner and the battery only has a single heating source of the PTC water heater; 2. the battery cooling and heating modes adopt indirect cooling and heating. Such as: the battery heating system adopts a plate heat exchanger to indirectly obtain a heat source to heat the battery pack; 3. the thermostat of the extended-range engine cooling system is a wax thermostat. The ideal one-stroke-extended electric vehicle thermal management system has the following technical defects:
1. in a winter pure electric mode, a heating source is single, and the heating of the air conditioner warm air core body and the battery pack completely depends on the heating of the PTC water heater, so that the PTC power consumption is large, and the endurance mileage of the vehicle is shortened; and a PTC water heater with high heating power is required during design, so that the cost is high.
2. In a winter range-increasing mode or after an engine runs, the waste heat of the engine is indirectly transferred to the battery for heating after being subjected to secondary heat exchange with the heat exchanger, so that the low-temperature heating temperature rise speed of the battery pack is low.
Disclosure of Invention
The invention provides a range-extended electric car heat pipe system, which realizes the recovery of waste heat of an engine and a motor and can distribute the waste heat of the engine and the waste heat of the motor to a battery pack and/or a cockpit according to requirements.
The invention is realized in this way, an extended range electric car heat pipe system, the system includes:
the motor pipeline is arranged around the motor, an inlet of the motor pipeline is connected with a low-temperature radiator and a valve 2 of a first electronic three-way valve through a first electronic water pump through a first tee joint respectively, the low-temperature radiator is connected with a valve 1 of the first electronic three-way valve, the rest valves of the first electronic three-way valve are connected with one end of a four-way steering valve, the rest end of the four-way steering valve is connected with a second electronic water pump, an outlet of the motor pipeline and a fifth tee joint respectively, an output end of the second electronic water pump is sequentially connected with a PTC heater, a warm air core body and a second tee joint, the rest two ends of the second tee joint are connected with an electronic two-way valve and an electronic water pump respectively, an output end of the electronic water pump is connected with a battery pack pipeline inlet arranged around a battery pack, an outlet of the battery pack pipeline is connected with the other end of the electronic two-way valve and a valve end of the second electronic three-way valve, and the inlet of the engine pipeline is connected, the outlet of the engine is provided with a temperature regulator, the other end of the high-temperature radiator is connected with the first outlet of the temperature regulator, the second outlet of the temperature regulator is connected with one end of a fifth tee joint, and the remaining end of the fifth tee joint is connected with a valve 2 of a second electronic three-way valve;
the heat management controller TMU is in communication connection with the first electronic three-way valve, the second electronic three-way valve, the electronic two-way valve, the electronic water pump I, the electronic water pump II, the electronic water pump III, the PTC heater, the four-way steering valve, the high-temperature radiator, the low-temperature radiator and the temperature regulator;
when the four-way steering valve is in a first state, the first electronic three-way electromagnetic valve is communicated with the outlet of the motor pipeline, and the fifth three-way electromagnetic valve is communicated with the second electronic water pump; when the four-way steering valve is in the second state, the first electronic three-way valve is communicated with the fifth three-way valve, and the outlet of the motor pipeline is communicated with the second electronic water pump.
The invention is realized in such a way, and provides a heat pipe method for an extended-range electric car, which utilizes the waste heat of an engine or a motor to supply heat for a battery pack and/or a cockpit.
Further, when the motor is in the working mode, if the temperature of the battery pack is too low, but the heating function in the driving cabin is not started, the thermal management method of the extended-range electric car comprises the following steps:
s11, detecting whether the current waste heat of the motor meets the heating requirement of the battery pack;
s12, if the detection result is yes, closing the electronic two-way valve and the PTC heater, controlling the warm air core body to be in a non-heating state, starting the electronic water pump I, the electronic water pump II and the electronic water pump III, controlling the four-way steering valve to be in a state II, controlling the valves 2 of the second electronic three-way valve and the first electronic three-way valve to be opened, and controlling the valve 1 to be closed; if the detection result is negative, the electronic two-way valve is closed, the warm air core body is controlled to be in a non-heating state, the electronic water pump I, the electronic water pump II, the electronic water pump III and the PTC heater are started, the four-way steering valve is controlled to be in the state II, the valves 2 of the second electronic three-way valve and the first electronic three-way valve are controlled to be opened, and the valve 1 is controlled to be closed.
Further, when the motor is in the working mode, if the temperature of the battery pack is in the working temperature range, but the heating function in the cabin is started, the thermal management method of the extended-range electric car comprises the following steps:
s21, detecting whether the current waste heat of the motor meets the set temperature requirement of a user;
s22, if the detection result is yes, the electronic water pump III and the PTC heater are closed, the electronic water pump I, the electronic water pump II and the electronic two-way valve are started, the warm air core body is controlled to be in a heating state, the four-way steering valve is controlled to be in a state II, the valves 2 of the second electronic three-way valve and the first electronic three-way valve are controlled to be opened, and the valve 1 is controlled to be closed; if the detection result is negative, the electronic water pump III is closed, the PTC heater, the electronic water pump I, the electronic water pump II and the electronic two-way valve are started, the warm air core body is controlled to be in the heating state, the four-way steering valve is controlled to be in the state II, the valves 2 of the second electronic three-way valve and the first electronic three-way valve are controlled to be opened, and the valve 1 is controlled to be closed.
Further, when the motor is in a working mode, if the temperature of the battery pack is too low and the heating function in the passenger compartment is started, the extended-range electric car heat management method comprises the following steps:
s31, detecting whether the current waste heat of the motor meets the set temperature of a user and the requirements of a battery pack;
s32, if the detection result is positive, the PTC heater is closed, the electronic water pump I, the electronic water pump II, the electronic water pump III and the electronic two-way valve are started, the warm air core body is controlled to be in the heating state, the four-way steering valve is controlled to be in the state II, the valves 2 of the second electronic three-way valve and the first electronic three-way valve are controlled to be opened, and the valve 1 is controlled to be closed; if the detection result is negative, the PTC heater, the first electronic water pump, the second electronic water pump, the third electronic water pump and the electronic two-way valve are started, the warm air core body is controlled to be in the heating state, the four-way steering valve is controlled to be in the second state, the valves 2 of the second electronic three-way valve and the first electronic three-way valve are controlled to be opened, and the valve 1 is controlled to be closed.
Further, when the engine is in a working mode and if the temperature of the battery pack is too low but the heating function in the driving cabin is not started, the extended-range electric car heat management method comprises the following steps:
and closing the electronic two-way valve and the PTC heater, controlling the hot air core body to be in a non-heating state, starting the electronic water pump II and the electronic water pump III, controlling the four-way steering valve to be in the state I, controlling the valve 2 of the second electronic three-way valve to be closed, and opening the valve 1.
Further, when the engine is in the working mode, if the temperature of the battery pack is in the working temperature range, but the heating function in the cabin is started, the thermal management method of the extended-range electric car comprises the following steps:
and (3) closing the electronic water pump III and the PTC heater, starting the electronic water pump II and the electronic two-way valve, controlling the warm air core body to be in a heating state, controlling the four-way steering valve to be in the state I, controlling the valve 1 of the second electronic three-way valve to be opened, and controlling the valve 2 to be closed.
Further, when the engine is in a working mode and if the temperature of the battery pack is too low and the heating function in the passenger compartment is started, the extended-range electric car heat management method comprises the following steps:
and (3) closing the PTC heater, starting the electronic water pump II, the electronic water pump III and the electronic two-way valve, controlling the warm air core body to be in a heating state, controlling the four-way steering valve to be in the state I, controlling the valve 1 of the second electronic three-way valve to be opened, and controlling the valve 2 to be closed.
Further, when the current waste heat of the engine is excessive, the flow of the first outlet of the thermostat is increased.
Furthermore, the distribution of the waste heat of the engine in the cockpit and the battery pack is controlled through the opening degree of the first thermostat outlet and the rotating speed of the third electronic water pump.
The extended-range electric car heat management system provided by the invention has the following beneficial effects:
1. a set of heat management system is designed, so that the waste heat recovery of the engine and the motor is realized, and simultaneously the waste heat of the engine and the waste heat of the motor can be distributed to the battery pack and/or the cockpit according to the requirement,
2. the waste heat of the motor and the engine is recovered to the maximum extent and is used for heating the battery pack and the cockpit, so that the energy consumption of the PTC heater is reduced;
3. when the waste heat of the engine supplies heat to the battery pack and the cockpit simultaneously, the waste heat of the engine can be distributed on the battery pack and the air heating core body in different proportions by controlling the opening degree of the first temperature regulator outlet and the rotating speed of the third electronic water pump;
4. when the waste heat of the motor supplies heat to the battery pack and the cockpit at the same time, the waste heat of the motor can be distributed to the battery pack and the warm air core body in different proportions by controlling the rotating speed of the electronic two-way valve and the electronic water pump III.
Drawings
Fig. 1 is a schematic structural diagram of a thermal management system of an extended range electric car according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a thermal management system in a motor operating mode according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a thermal management system in an engine operating mode according to an embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be given in order to provide those skilled in the art with a more complete understanding, such as an exact and thorough understanding of the inventive concept and technical solution of the present invention.
Fig. 1 is a schematic structural diagram of a thermal management system of an extended range electric car according to an embodiment of the present invention, and for convenience of description, only a part related to the embodiment of the present invention is shown.
The system comprises:
the motor pipeline is arranged around the motor, an inlet of the motor pipeline is connected with a low-temperature radiator and a valve 2 of a first electronic three-way valve through a first electronic water pump through a first tee joint respectively, the low-temperature radiator is connected with a valve 1 of the first electronic three-way valve, the rest valves of the first electronic three-way valve are connected with one end of a four-way steering valve, the rest end of the four-way steering valve is connected with a second electronic water pump, an outlet of the motor pipeline and a fifth tee joint respectively, an output end of the second electronic water pump is sequentially connected with a PTC heater, a warm air core body and a second tee joint, the rest two ends of the second tee joint are connected with an electronic two-way valve and an electronic water pump respectively, an output end of the electronic water pump is connected with a battery pack pipeline inlet arranged around a battery pack, an outlet of the battery pack pipeline is connected with the other end of the electronic two-way valve and a valve end of the second electronic three-way valve, and the inlet of the engine pipeline is connected, the outlet of the engine is provided with a temperature regulator, the other end of the high-temperature radiator is connected with the first outlet of the temperature regulator, the second outlet of the temperature regulator is connected with one end of a fifth tee joint, and the remaining end of the fifth tee joint is connected with a valve 2 of a second electronic three-way valve;
the heat management controller TMU is in communication connection with the first electronic three-way valve, the second electronic three-way valve, the electronic two-way valve, the electronic water pump I, the electronic water pump II, the electronic water pump III, the PTC heater, the four-way steering valve, the high-temperature radiator, the low-temperature radiator and the temperature regulator;
when the four-way steering valve is in a first state, the first electronic three-way electromagnetic valve is communicated with the outlet of the motor pipeline, and the fifth three-way electromagnetic valve is communicated with the second electronic water pump; when the four-way steering valve is in the second state, the first electronic three-way valve is communicated with the fifth three-way valve, and the outlet of the motor pipeline is communicated with the second electronic water pump.
In one embodiment of the invention, the warm air core is arranged in the cockpit and used for heating the cockpit.
The heat management method based on the extended-range electric vehicle heat pipe system is characterized in that the waste heat of an engine or the waste heat of a motor is utilized to supply heat to a battery pack and/or a cab.
Fig. 2 is a schematic structural diagram of the thermal management system in the motor operation mode according to the embodiment of the present invention, and for convenience of description, only the portions related to the embodiment of the present invention are shown.
1) When the motor is in a working mode, if the temperature of the battery pack is too low, but the heating function in the driving cabin is not started, the extended-range electric car heat management method comprises the following steps:
s11, detecting whether the current waste heat of the motor meets the heating requirement of the battery pack, in the embodiment of the invention, judging whether the waste heat of the motor is sufficient or not based on the heating rate of the battery pack and the water temperature at the inlet of the pipeline of the battery pack, and when the heating rate of the battery pack is lower than a preset rate value, judging that the waste heat of the motor is insufficient, or when the water temperature at the inlet of the pipeline of the battery pack is lower than a preset temperature value, judging that the waste heat of the motor is insufficient.
S12, if the detection result is yes, closing the electronic two-way valve and the PTC heater, controlling the warm air core body to be in a non-heating state, starting the electronic water pump I, the electronic water pump II and the electronic water pump III, controlling the four-way steering valve to be in a state II, controlling the valves 2 of the second electronic three-way valve and the first electronic three-way valve to be opened, and controlling the valve 1 to be closed; if the detection result is negative, the electronic two-way valve is closed, the warm air core body is controlled to be in a non-heating state, the electronic water pump I, the electronic water pump II, the electronic water pump III and the PTC heater are started, the four-way steering valve is controlled to be in the state II, the valves 2 of the second electronic three-way valve and the first electronic three-way valve are controlled to be opened, and the valve 1 is controlled to be closed.
The motor waste heat is used for heating the battery pack: the motor waste heat sequentially passes through a motor pipeline outlet, an electronic water pump II, a PTC heater (the waste heat is sufficient and is in a closed state, and the waste heat is insufficient and is in a working state), a warm air core body in a non-heating state, a second tee joint, an electronic water pump III, a battery pack pipeline, a third tee joint, a second electronic three-way valve (2 valves are opened, 1 valve is closed), a fifth tee joint, a first electronic three-way valve (2 valves are opened, 1 valve is closed), a first tee joint, a first electronic water pump I and a motor pipeline inlet;
in the embodiment of the invention, if the current residual heat of the motor is excessive, a valve 1 of the first electronic three-way valve is opened, and the redundant residual heat of the motor is shunted to the low-temperature radiator; if the residual heat of the motor is too little, the valve 2 of the first electronic three-way valve is opened, and the valve 1 is closed.
2) When the motor is in a working mode, if the temperature of the battery pack is in a working temperature range, but a user starts a heating function in a cabin, the extended-range electric car heat management method comprises the following steps:
s21, detecting whether the current waste heat of the motor meets the set temperature requirement of a user; in the embodiment of the invention, whether the residual heat of the motor is sufficient or not is judged based on the heating rate of the cockpit and the water temperature at the inlet of the warm air core body, and when the heating rate of the cockpit is lower than a preset rate value, the residual heat of the motor is judged to be insufficient, or when the water temperature at the inlet of the warm air core body is lower than a preset temperature value, the residual heat of the motor is judged to be insufficient.
S22, if the detection result is yes, closing the electronic water pump III and the PTC heater, starting the electronic water pump I, the electronic water pump II and the electronic two-way valve, controlling the warm air core body to be in a heating state, controlling the four-way steering valve to be in a state II, controlling the valve 2 of the second electronic three-way valve and the first electronic three-way valve to be opened, and closing the valve 1; if the detection result is negative, the electronic water pump III is closed, the electronic water pump I, the electronic water pump II, the electronic two-way valve and the PTC heater are started, the warm air core body is controlled to be in the heating state, the four-way steering valve is controlled to be in the state II, the valves 2 of the second electronic three-way valve and the first electronic three-way valve are controlled to be opened, and the valve 1 is controlled to be closed.
The motor waste heat gives driving cabin heating's circulation circuit: the motor waste heat sequentially passes through a motor pipeline outlet, a second electronic water pump, a PTC heater (the waste heat is sufficient and is in a closed state, and the waste heat is insufficient and is in a working state), a warm air core body in a heating state, a second tee joint, an electronic two-way valve, a third tee joint, a second electronic three-way valve (2 valves are opened and 1 valve is closed), a fifth tee joint, a first electronic three-way valve (2 valves are opened and 1 valve is closed), a first tee joint, a first electronic water pump and a motor pipeline inlet;
in the embodiment of the invention, if the current residual heat of the motor is excessive, a valve 1 of the first electronic three-way valve is opened, and the redundant residual heat of the motor is shunted to the low-temperature radiator; if the residual heat of the motor is too little, the valve 2 of the first electronic three-way valve is opened, and the valve 1 is closed.
3) When the motor is in a working mode, if the temperature of the battery pack is too low and the heating function in the cabin is started, the extended-range electric car heat management method comprises the following steps:
s31, detecting whether the current waste heat of the motor meets the set temperature of a user and the requirements of a battery pack;
when the current waste heat of the motor is detected to meet the requirement of the battery pack but not meet the set temperature requirement of a user, if the heating rate of the battery pack is higher than a second preset rate value and the water temperature at the inlet of a pipeline of the battery pack is higher than the second preset rate value, the rotating speed of a third electronic water pump is reduced until the heating rate of the battery pack is between the first preset rate value and the second preset rate value and the water temperature at the inlet of the pipeline of the battery pack is between the first preset rate value and the second preset rate value, if the heating rate of the cockpit is still lower than the first preset rate value or the water temperature at the inlet of the warm air core body is still lower than the first preset rate value, the waste heat of the motor is judged to be insufficient, and if the heating rate of the cockpit is higher than the first preset rate value and the water.
S32, if the detection result is yes, the PTC heater is closed, the electronic water pump I, the electronic water pump II, the electronic water pump III and the electronic two-way valve are started, the warm air core body is controlled to be in a heating state, the four-way steering valve is controlled to be in a state II, the valves 2 of the second electronic three-way valve and the first electronic three-way valve are controlled to be opened, and the valve 1 is controlled to be closed; if the detection result is negative, starting the electronic water pump I, the electronic water pump II, the electronic water pump III, the electronic two-way valve and the PTC heater, controlling the warm air core body to be in the heating state, controlling the four-way steering valve to be in the state II, controlling the valves 2 of the second electronic three-way valve and the first electronic three-way valve to be opened, and controlling the valves 1 to be closed.
When the motor waste heat supplies heat to the battery pack and the cockpit simultaneously, the motor waste heat is divided into two paths after passing through the warm air core body and the second tee joint, one path of the waste heat flows to the battery pack through the electronic water pump three-way valve, and the other path of the waste heat returns to the electronic water pump one-way valve through the electronic two-way valve.
In the embodiment of the invention, when the motor waste heat supplies heat to the battery pack and the cockpit simultaneously, the motor waste heat can be distributed to the battery pack and the warm air core body in different proportions by controlling the rotating speeds of the electronic two-way valve and the electronic water pump III, if the rotating speed of the electronic water pump III is high, more motor waste heat flows to the battery pack to heat the battery pack, and otherwise, more engine waste heat is supplied to the warm air core body to heat the driving cockpit.
In the embodiment of the invention, if the current residual heat of the motor is excessive, a valve 1 of the first electronic three-way valve is opened, and the redundant residual heat of the motor is shunted to the low-temperature radiator; if the residual heat of the motor is too little, the valve 2 of the first electronic three-way valve is opened, and the valve 1 is closed.
When the engine of the range extender is in a working mode, the waste heat of the engine is sufficient, and the default is that the waste heat of the engine is sufficient.
4) When the engine is in a working mode, if the temperature of the battery pack is too low, but the heating function in the driving cabin is not started, the extended-range electric car heat management method comprises the following steps:
closing the electronic two-way valve and the PTC heater, controlling the warm air core body to be in a non-heating state, starting the electronic water pump II and the electronic water pump III, controlling the four-way steering valve to be in a state I, controlling the valve 2 of the second electronic three-way valve to be closed, and opening the valve 1;
in the embodiment of the invention, whether the engine waste heat is sufficient or not is judged based on the temperature rise rate of the battery pack and the water temperature at the inlet of the battery pack pipeline, and when the temperature rise rate of the battery pack is greater than the second preset rate value and the water temperature at the inlet of the battery pack pipeline is greater than the second preset temperature value, the excess engine waste heat is judged. When the current waste heat of the engine is excessive, the flow of the first thermostat outlet is increased, and heat dissipation is performed through the high-temperature radiator, so that the flow of the second thermostat outlet is reduced, and the heat flowing to the warm air core and the battery pack is reduced.
The circulating line for heating the battery pack by using the waste heat of the engine comprises: the second outlet of the thermostat, the fifth tee joint, the second electronic water pump, the PTC heater (closed), the warm air core body in a non-heating state, the second tee joint, the third electronic water pump, the battery pack pipeline, the third tee joint, the second electronic valve (the valve 2 is closed, the valve 1 is opened), the fourth tee joint and the inlet of the engine pipeline.
5) When the engine is in a working mode, if the temperature of the battery pack is in a working temperature range, but the heating function in the cabin is started, the extended-range electric car heat management method comprises the following steps:
and (3) closing the electronic water pump III and the PTC heater, starting the electronic water pump II and the electronic two-way valve, controlling the warm air core body to be in a heating state, controlling the four-way steering valve to be in the state I, controlling the valve 1 of the second electronic three-way valve to be opened, and controlling the valve 2 to be closed.
In the embodiment of the invention, whether the engine waste heat is sufficient or not is judged based on the heating rate of the cockpit and/or the water temperature at the inlet of the warm air core body, and when the heating rate of the cockpit is greater than the second preset rate value and the water temperature at the inlet of the warm air core body is higher than the second preset temperature value, the excess engine waste heat is judged. When the current waste heat of the engine is excessive, the flow of the first thermostat outlet is increased, and heat dissipation is performed through the high-temperature radiator, so that the flow of the second thermostat outlet is reduced, and the heat flowing to the warm air core and the battery pack is reduced.
The circulating line for heating the passenger compartment by using the waste heat of the engine: the temperature regulator comprises a second thermostat outlet, a fifth tee joint, a second electronic water pump, a PTC heater (in a closed state), a warm air core body in a heating state, a second tee joint, an electronic two-way valve, a third tee joint, a second electronic valve (a valve 2 is closed and a valve 1 is opened), a fourth tee joint and an engine pipeline inlet.
6) When the engine is in a working mode, if the temperature of the battery pack is too low and the heating function in the cabin is started, the extended-range electric car heat management method comprises the following steps:
the PTC heater is closed, the electronic water pump II, the electronic water pump III and the electronic two-way valve are started, the warm air core body is controlled to be in a heating state, the four-way steering valve is controlled to be in the state I, the valve 1 of the second electronic three-way valve is controlled to be opened, and the valve 2 is controlled to be closed;
and judging that the engine waste heat is sufficient based on the heating rate of the cockpit, the water temperature at the inlet of the warm air core, the heating rate of the battery pack and the water temperature at the inlet of the battery pack, and when the heating rate of the cockpit is greater than a second preset rate value, the water temperature at the inlet of the warm air core is higher than the second preset temperature value, the heating rate of the battery pack is greater than the second preset rate value, and the water temperature at the inlet of the battery pack is higher than the second preset temperature value, judging that the engine waste heat is excessive. When the current waste heat of the engine is excessive, the flow of the first thermostat outlet is increased, and heat dissipation is performed through the high-temperature radiator, so that the flow of the second thermostat outlet is reduced, and the heat flowing to the warm air core and the battery pack is reduced.
When the engine waste heat supplies heat to the battery pack and the cockpit at the same time, the engine waste heat is divided into two paths after passing through the warm air core body and the second tee joint, one path flows to the battery pack through the electronic water pump and the third flow, and the other path returns to an engine pipeline through the electronic two-way valve.
In the embodiment of the invention, the proportion of the engine waste heat at the warm air core body and the battery pack is adjusted based on the opening degree of the first thermostat outlet and the rotating speed of the third electronic water pump, the larger the opening degree of the first thermostat outlet is, the more heat flows to the battery pack and the cab, if the rotating speed of the third electronic water pump is large, more engine waste heat flows to the battery pack to heat the battery pack, and otherwise, more engine waste heat is supplied to the warm air core body to heat the driving cab.
The refrigeration of the battery pack and the cockpit is performed based on a refrigeration loop, the refrigeration loop comprises a compressor, a condenser and an evaporator which are sequentially connected, the evaporator is arranged in the driving cabin and used for refrigerating in the cockpit, and a heat exchanger arranged near the battery pack and connected in parallel with the evaporator and used for cooling the battery pack.
The extended-range electric car heat management system provided by the invention has the following beneficial effects:
1. a set of thermal management system is designed, so that the waste heat recovery of the engine and the motor is realized, and meanwhile, the waste heat of the engine and the waste heat of the motor can be distributed to the battery pack and/or the cockpit according to requirements;
2. the waste heat of the motor and the engine is recovered to the maximum extent and is used for heating the battery pack and the cockpit, so that the energy consumption of the PTC heater is reduced;
3. when the waste heat of the engine supplies heat to the battery pack and the cockpit simultaneously, the waste heat of the engine can be distributed on the battery pack and the air heating core body in different proportions by controlling the opening degree of the first temperature regulator outlet and the rotating speed of the third electronic water pump;
4. when the waste heat of the motor supplies heat to the battery pack and the cockpit at the same time, the waste heat of the motor can be distributed to the battery pack and the warm air core body in different proportions by controlling the rotating speed of the electronic two-way valve and the electronic water pump III.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (10)
1. An extended range electric vehicle heat pipe system, the system comprising:
the motor pipeline is arranged around the motor, an inlet of the motor pipeline is connected with a low-temperature radiator and a valve 2 of a first electronic three-way valve through a first electronic water pump through a first tee joint respectively, the low-temperature radiator is connected with a valve 1 of the first electronic three-way valve, the rest valves of the first electronic three-way valve are connected with one end of a four-way steering valve, the rest end of the four-way steering valve is connected with a second electronic water pump, an outlet of the motor pipeline and a fifth tee joint respectively, an output end of the second electronic water pump is sequentially connected with a PTC heater, a warm air core body and a second tee joint, the rest two ends of the second tee joint are connected with an electronic two-way valve and an electronic water pump respectively, an output end of the electronic water pump is connected with a battery pack pipeline inlet arranged around a battery pack, an outlet of the battery pack pipeline is connected with the other end of the electronic two-way valve and a valve end of the second electronic three-way valve, and the inlet of the engine pipeline is connected, the outlet of the engine is provided with a temperature regulator, the other end of the high-temperature radiator is connected with the first outlet of the temperature regulator, the second outlet of the temperature regulator is connected with one end of a fifth tee joint, and the remaining end of the fifth tee joint is connected with a valve 2 of a second electronic three-way valve;
the heat management controller TMU is in communication connection with the first electronic three-way valve, the second electronic three-way valve, the electronic two-way valve, the electronic water pump I, the electronic water pump II, the electronic water pump III, the PTC heater, the four-way steering valve, the high-temperature radiator, the low-temperature radiator and the temperature regulator;
when the four-way steering valve is in a first state, the first electronic three-way electromagnetic valve is communicated with the outlet of the motor pipeline, and the fifth three-way electromagnetic valve is communicated with the second electronic water pump; when the four-way steering valve is in the second state, the first electronic three-way valve is communicated with the fifth three-way valve, and the outlet of the motor pipeline is communicated with the second electronic water pump.
2. The extended-range electric car heat pipe system thermal management method is characterized in that the heat of the battery pack and/or the cab is supplied by using the waste heat of the engine or the waste heat of the motor.
3. The heat pipe method for the extended-range electric car according to claim 2, wherein when the motor is in the working mode and the temperature of the battery pack is too low, but the heating function in the driving cabin is not started, the heat management method for the extended-range electric car comprises the following steps:
s11, detecting whether the current waste heat of the motor meets the heating requirement of the battery pack;
s12, if the detection result is yes, closing the electronic two-way valve and the PTC heater, controlling the warm air core body to be in a non-heating state, starting the electronic water pump I, the electronic water pump II and the electronic water pump III, controlling the four-way steering valve to be in a state II, controlling the valves 2 of the second electronic three-way valve and the first electronic three-way valve to be opened, and controlling the valve 1 to be closed; if the detection result is negative, the electronic two-way valve is closed, the electronic water pump I, the electronic water pump II, the electronic water pump III and the PTC heater are started, the warm air core body is controlled to be in a non-heating state, the four-way steering valve is controlled to be in the state II, the valves 2 of the second electronic three-way valve and the first electronic three-way valve are controlled to be opened, and the valve 1 is controlled to be closed.
4. The heat pipe method for the extended-range electric car according to claim 2, wherein when the motor is in the working mode and the temperature of the battery pack is in the working temperature range but the heating function in the passenger compartment is started, the heat management method for the extended-range electric car comprises the following steps:
s21, detecting whether the current waste heat of the motor meets the set temperature requirement of a user;
s22, if the detection result is yes, the electronic water pump III and the PTC heater are closed, the electronic water pump I, the electronic water pump II and the electronic two-way valve are started, the warm air core body is controlled to be in a heating state, the four-way steering valve is controlled to be in a state II, the valves 2 of the second electronic three-way valve and the first electronic three-way valve are controlled to be opened, and the valve 1 is controlled to be closed; if the detection result is negative, the electronic water pump III is closed, the PTC heater, the electronic water pump I, the electronic water pump II and the electronic two-way valve are started, the warm air core body is controlled to be in the heating state, the four-way steering valve is controlled to be in the state II, the valves 2 of the second electronic three-way valve and the first electronic three-way valve are controlled to be opened, and the valve 1 is controlled to be closed.
5. The heat pipe method for the extended-range electric car according to claim 2, wherein when the motor is in an operating mode and the temperature of the battery pack is too low and the heating function in the passenger compartment is started, the heat management method for the extended-range electric car comprises the following steps:
s31, detecting whether the current waste heat of the motor meets the set temperature of a user and the requirements of a battery pack;
s32, if the detection result is positive, the PTC heater is closed, the electronic water pump I, the electronic water pump II, the electronic water pump III and the electronic two-way valve are started, the warm air core body is controlled to be in the heating state, the four-way steering valve is controlled to be in the state II, the valves 2 of the second electronic three-way valve and the first electronic three-way valve are controlled to be opened, and the valve 1 is controlled to be closed; if the detection result is negative, the PTC heater, the first electronic water pump, the second electronic water pump, the third electronic water pump and the electronic two-way valve are started to control the warm air core body to be in the heating state, the four-way steering valve is controlled to be in the second state, the valve 2 of the second electronic three-way valve and the valve 1 of the first electronic three-way valve are controlled to be opened, and the valve 1 of the four-way steering valve is controlled to be closed.
6. The heat pipe method for the extended-range electric car according to claim 2, wherein when the temperature of the battery pack is too low and the heating function in the driving cabin is not started when the engine is in the working mode, the heat management method for the extended-range electric car comprises the following steps:
and closing the electronic two-way valve and the PTC heater, controlling the hot air core body to be in a non-heating state, starting the electronic water pump II and the electronic water pump III, controlling the four-way steering valve to be in the state I, controlling the valve 2 of the second electronic three-way valve to be closed, and opening the valve 1.
7. The heat pipe method for the extended-range electric car according to claim 2, wherein when the engine is in an operating mode and the temperature of the battery pack is in an operating temperature range but the heating function in the passenger compartment is started, the heat management method for the extended-range electric car comprises the following steps:
and (3) closing the electronic water pump III and the PTC heater, starting the electronic water pump II and the electronic two-way valve, controlling the warm air core body to be in a heating state, controlling the four-way steering valve to be in the state I, controlling the valve 1 of the second electronic three-way valve to be opened, and controlling the valve 2 to be closed.
8. The heat pipe method for the extended-range electric car according to claim 2, wherein when the engine is in an operating mode and the temperature of the battery pack is too low and the heating function in the passenger compartment is started, the heat management method for the extended-range electric car comprises the following steps:
and (3) closing the PTC heater, starting the electronic water pump II, the electronic water pump III and the electronic two-way valve, controlling the warm air core body to be in a heating state, controlling the four-way steering valve to be in the state I, controlling the valve 1 of the second electronic three-way valve to be opened, and controlling the valve 2 to be closed.
9. The range-extended trolley motor heat pipe method according to any one of claims 6 to 8, wherein when the current residual heat of the engine is excessive, the flow rate of the first outlet of the thermostat is increased.
10. The extended range electric vehicle heat pipe method of claim 9, wherein the distribution of the engine waste heat to the cab and the battery pack is controlled by the opening degree of the first thermostat outlet and the rotation speed of the third electronic water pump.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497599A (en) * | 2020-04-26 | 2020-08-07 | 上海元城汽车技术有限公司 | Thermal management method, device and system of extended range electric vehicle |
| CN111716995A (en) * | 2020-07-02 | 2020-09-29 | 重庆金康赛力斯新能源汽车设计院有限公司 | Heating system and method for air conditioner and power battery of electric automobile and electric automobile |
| CN111959348A (en) * | 2020-08-27 | 2020-11-20 | 重庆金康赛力斯新能源汽车设计院有限公司 | Heating control system and method for power battery of electric automobile |
| CN112319174A (en) * | 2020-10-19 | 2021-02-05 | 东风小康汽车有限公司重庆分公司 | Thermal management system for extended range automobile and extended range automobile |
| CN112455205A (en) * | 2020-11-17 | 2021-03-09 | 东风柳州汽车有限公司 | Heat management system of automobile |
| CN113547895A (en) * | 2021-08-18 | 2021-10-26 | 安徽江淮汽车集团股份有限公司 | Range-extending type automobile waste heat recovery system |
| WO2023207306A1 (en) * | 2022-04-28 | 2023-11-02 | 比亚迪股份有限公司 | Thermal management system, and vehicle having same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101624007A (en) * | 2009-08-05 | 2010-01-13 | 奇瑞汽车股份有限公司 | Plug-in hybrid electric vehicle |
| CN106004338A (en) * | 2016-07-27 | 2016-10-12 | 宁波吉利汽车研究开发有限公司 | Car heat management system and car |
| CN207388798U (en) * | 2017-09-30 | 2018-05-22 | 重庆瑜欣平瑞电子股份有限公司 | Electronic automobile-used band warm wind increases journey system |
| CN109572365A (en) * | 2018-12-27 | 2019-04-05 | 重庆长安汽车股份有限公司 | Hybrid electric vehicle heat management system |
| CN110315931A (en) * | 2018-03-30 | 2019-10-11 | 郑州宇通客车股份有限公司 | A kind of hybrid vehicle and its heat management system |
-
2019
- 2019-11-22 CN CN201911157001.6A patent/CN110978945B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101624007A (en) * | 2009-08-05 | 2010-01-13 | 奇瑞汽车股份有限公司 | Plug-in hybrid electric vehicle |
| CN106004338A (en) * | 2016-07-27 | 2016-10-12 | 宁波吉利汽车研究开发有限公司 | Car heat management system and car |
| CN207388798U (en) * | 2017-09-30 | 2018-05-22 | 重庆瑜欣平瑞电子股份有限公司 | Electronic automobile-used band warm wind increases journey system |
| CN110315931A (en) * | 2018-03-30 | 2019-10-11 | 郑州宇通客车股份有限公司 | A kind of hybrid vehicle and its heat management system |
| CN109572365A (en) * | 2018-12-27 | 2019-04-05 | 重庆长安汽车股份有限公司 | Hybrid electric vehicle heat management system |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497599A (en) * | 2020-04-26 | 2020-08-07 | 上海元城汽车技术有限公司 | Thermal management method, device and system of extended range electric vehicle |
| CN111716995A (en) * | 2020-07-02 | 2020-09-29 | 重庆金康赛力斯新能源汽车设计院有限公司 | Heating system and method for air conditioner and power battery of electric automobile and electric automobile |
| CN111959348A (en) * | 2020-08-27 | 2020-11-20 | 重庆金康赛力斯新能源汽车设计院有限公司 | Heating control system and method for power battery of electric automobile |
| CN112319174A (en) * | 2020-10-19 | 2021-02-05 | 东风小康汽车有限公司重庆分公司 | Thermal management system for extended range automobile and extended range automobile |
| CN112455205A (en) * | 2020-11-17 | 2021-03-09 | 东风柳州汽车有限公司 | Heat management system of automobile |
| CN112455205B (en) * | 2020-11-17 | 2022-03-04 | 东风柳州汽车有限公司 | Heat management system of automobile |
| CN113547895A (en) * | 2021-08-18 | 2021-10-26 | 安徽江淮汽车集团股份有限公司 | Range-extending type automobile waste heat recovery system |
| CN113547895B (en) * | 2021-08-18 | 2023-02-17 | 安徽江淮汽车集团股份有限公司 | Range-extending type automobile waste heat recovery system |
| WO2023207306A1 (en) * | 2022-04-28 | 2023-11-02 | 比亚迪股份有限公司 | Thermal management system, and vehicle having same |
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