WO2020007361A1 - 电动总成换热系统的控制方法、电动总成换热系统和车辆 - Google Patents

电动总成换热系统的控制方法、电动总成换热系统和车辆 Download PDF

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Publication number
WO2020007361A1
WO2020007361A1 PCT/CN2019/094862 CN2019094862W WO2020007361A1 WO 2020007361 A1 WO2020007361 A1 WO 2020007361A1 CN 2019094862 W CN2019094862 W CN 2019094862W WO 2020007361 A1 WO2020007361 A1 WO 2020007361A1
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WIPO (PCT)
Prior art keywords
pump
electric assembly
heat
heat exchange
gear
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Ceased
Application number
PCT/CN2019/094862
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English (en)
French (fr)
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WO2020007361A9 (zh
Inventor
袁振宇
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BYD Co Ltd
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BYD Co Ltd
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Publication of WO2020007361A1 publication Critical patent/WO2020007361A1/zh
Anticipated expiration legal-status Critical
Publication of WO2020007361A9 publication Critical patent/WO2020007361A9/zh
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles

Definitions

  • the present application relates to the technical field of motor heat dissipation, and in particular, to a control method of an electric assembly heat exchange system, an electric assembly heat exchange system, and a vehicle.
  • the vehicle's electric assembly heat exchange system uses an electric water pump to drive the heat exchange medium to cool the electric assembly.
  • the electric water pump outputs a certain power, and when the electric water pump is damaged, the electric assembly continues to work and it is easy to generate electricity. Assembly overheating problem.
  • the speed of the electric water pump in the cooling system of the vehicle is fixed, the speed cannot be adjusted, and the mechanical loss and heat transfer loss are large.
  • the water pump does not have a fault alarm function, and the cause of the pump failure cannot be determined.
  • This application aims to solve at least one of the technical problems existing in the prior art. For this reason, this application proposes a control of an electric assembly heat exchange system that can control the rotation speed of a cooling pump in real time according to the temperature and rotation speed of the electric assembly, which can ensure that the electric assembly works within the optimal temperature range, and realize the efficient operation of the cooling system. method.
  • the application also proposes an electric assembly heat exchange system.
  • the present application also proposes a vehicle.
  • the electric assembly heat exchange system includes: the electric assembly heat exchange system includes: an electric assembly, a heat exchange pump, a heat exchanger, The first port is connected to the first port of the heat exchange section of the electric assembly, and the second port of the heat exchange section of the electric assembly is connected to the first port of the heat exchanger. The second port is connected to the second port of the heat exchange pump, and the heat exchange pump has multiple gear positions; the control method includes the following steps: determining the temperature of the electric assembly, and generating a control unit based on the temperature of the electric assembly.
  • the first signal of the heat pump gear position, and the magnitude of the first signal corresponds to the level of the heat pump gear position; the speed of the electric assembly is determined, and the heat exchanger is used to control the heat pump according to the speed of the electric assembly.
  • the second signal of the gear position, the magnitude of the second signal corresponds to the height of the gear position of the heat pump; the gear position is selected and the gear position of the heat pump corresponding to the first signal is compared with the second signal Corresponding gears of the heat transfer pump, and The heat pump operation to change the gear of the two high shift range.
  • the temperature determination of the electric assembly, the determination of the rotation speed of the electric assembly, and the selection of the step gear are performed, so that the heat exchange pump can drive the circulation of the heat exchange medium with a suitable gear.
  • the electric assembly can work in the optimal temperature range to achieve efficient work of the heat exchange system.
  • the electric assembly heat exchange system includes: an electric assembly, a heat exchange pump, a heat exchanger, a motor controller, a heat exchanger pump controller, a motor temperature sensor, and a motor speed sensor; wherein the first port of the heat exchange pump Connected to the first port of the heat exchange section of the electric assembly, the second port of the heat exchange section of the electric assembly is connected to the first port of the heat exchanger, and the second port of the heat exchanger Connected to the second port of the heat exchange pump, the heat exchange pump has multiple gears, the motor controller is electrically connected to the electric assembly, and the heat exchange pump controller is electrically connected to the heat exchange pump;
  • the motor controller is used to collect the temperature and speed of the electric assembly;
  • the heat pump controller is used to process the temperature of the electric assembly and the temperature of the heat exchange medium;
  • the motor temperature sensor is used to detect the electric assembly Temperature;
  • the motor speed sensor is used to detect the speed of the electric assembly.
  • the electric assembly heat exchange system according to the present application can perform the control method of the electric assembly heat exchange system according to the present invention by including the above-mentioned components.
  • a vehicle according to the present application includes an electric assembly heat exchange system according to the present application.
  • the vehicle according to the present application is provided with the electric assembly heat exchange system described in the present application, so that the vehicle can operate the electric assembly within the optimal working temperature range, and the efficient operation of the heat exchange system is achieved, so that the vehicle has Corresponding advantages.
  • FIG. 1 is a schematic structural diagram of an electric assembly heat exchange system according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a motor controller according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a heat exchanger pump controller according to an embodiment of the present application.
  • FIG. 5 is a flowchart of a control method of an electric assembly heat exchange system according to another embodiment of the present application.
  • Electric assembly 1 heat exchange pump 2; heat exchanger 3; motor temperature sensor controller 4; motor speed sensor 5; heat exchange medium temperature sensor 6; communication line 7; vehicle cooling line 8; heat pump controller 9; Motor controller 10; display 11; temperature processing module 12; speed processing module 13; self-test module 14; fault alarm module 15; gear selection module 16.
  • an electric assembly heat exchange system 100 includes: an electric assembly 1, a heat exchange pump 2, a heat exchanger 3, a motor controller 10, a heat exchanger pump controller 9, and a heat exchanger.
  • the electric assembly 1 may include a heat exchange section.
  • the heat exchange section may be integrated on the housing of the electric assembly 1, or the gap between the rotor and the stator of the electric assembly 1 forms the heat exchange section.
  • Heat medium the first port of the heat exchange pump 2 is connected to the first port of the heat exchange section of the electric assembly 1, the second port of the heat exchange section of the electric assembly 1 is connected to the first port of the heat exchanger 3, and heat is exchanged
  • the second port of the heat exchanger 3 is connected to the second port of the heat exchanger pump 2.
  • the first port of the heat exchange pump 2 may be an outlet
  • the second port of the heat exchange pump 2 may be an inlet
  • the first port of the heat exchange section of the electric assembly 1 may be an inlet
  • the second port of the heat exchange section of the electric assembly 1 It can be an outlet
  • the first port of the heat exchanger 3 can be an inlet
  • the second port of the heat exchanger 3 can be an outlet.
  • the heat exchange section of the electric assembly 1, the heat exchanger 3, and the heat exchange pump 2 form a circuit for entering the heat exchange medium.
  • the heat exchange pump 2 is used to drive the heat exchange medium to circulate in the circuit.
  • the heat exchange pump 2 can pass the cooled heat exchange medium from the first end of the heat exchange section of the electric assembly 1 to the electric assembly. Into a heat exchange unit of 1, thereby starting the cycle again.
  • the heat exchange medium temperature sensor 6 is used to detect the temperature of the heat exchange medium in the heat exchange section of the electric assembly 1
  • the motor temperature sensor 4 is used to detect the temperature of the electric assembly 1
  • the motor speed sensor 5 is used to detect the electric assembly 1 Rotating speed.
  • the motor controller 10 includes a temperature processing module 12 and a speed processing module 13.
  • the heat pump controller 9 includes a self-test module 14, a fault alarm module 15, and a gear selection module 16.
  • the motor controller 10 is used to collect real-time information such as the temperature and motor speed of the electric assembly 1 and generate signals to be transmitted to the heat pump controller 9.
  • the heat pump controller 9 is used to process the signals transmitted by the motor controller to realize swapping. Control of heat pump 2 gears.
  • the heat exchanger 3 can also be connected to the cooling pipe 8 of the entire vehicle. The heat exchanger 3 can not only heat exchange the electric assembly heat exchange system 100, but also heat exchange other parts of the vehicle.
  • the hot-side inlet of the heat exchanger 3 can be connected to the outlet of the electric assembly 1, the hot-side outlet of the heat exchanger 3 can be connected to the inlet of a heat-exchange pump, and the cold-side inlet and cold-side outlet of the heat-exchange section 3 can be cooled with the vehicle.
  • Line 8 is connected.
  • the electric assembly heat exchange system 100 may further include a display screen 11.
  • the display screen 11 may be used to display the working status of the electric assembly 1, the heat exchange pump 2, such as the temperature of the electric assembly 1, the electric assembly 1 Speed, current of heat pump 2, voltage of heat pump 2, speed of heat pump 2 and so on.
  • the display 11 can also show the output signal of the heat pump 2 self-check in the control method of the electric assembly heat exchange system 100, that is, change Whether the heat pump 2 is faulty or whether the communication of the heat exchanger pump 2 is faulty, etc., the setting of the display screen 11 can facilitate the operator to check the working status of the electric assembly heat exchange system 100 from the display screen 11.
  • the heat exchanger pump 2 can have multiple gears.
  • the motor controller 10 is electrically connected to the electric assembly 1, and the heat exchanger pump controller 9 is electrically connected to the heat exchanger pump 2.
  • the power of the heat transfer pumps 2 in different gears is different, that is, when the heat transfer pump 2 is in the low gear, the rotation speed of the heat transfer pump 2 is slow, the flow rate of the heat transfer medium is slow, and the heat transfer medium circulation of the heat transfer system 100 is slow.
  • the heat exchange efficiency of the heat exchange system 100 is low.
  • the rotation speed of the heat exchange pump 2 is faster, the flow rate of the heat exchange medium is faster, and the heat exchange medium of the heat exchange system 100 circulates faster.
  • the heat exchange efficiency of the heat exchange system 100 is high.
  • the electric assembly heat exchange system 100 according to the present application can perform the control method of the electric assembly heat exchange system 100 according to the present application by providing the above-mentioned components.
  • the vehicle according to the present application includes the electric assembly heat exchange system 100 according to the present application, so that the vehicle can operate the electric assembly 1 within an optimal working temperature range, and achieve efficient work of the heat exchange system 100, thereby enabling the vehicle Has corresponding advantages.
  • control method of the electric assembly heat exchange system 100 includes the following steps: start of the heat exchange pump, judgment of the temperature of the electric assembly, judgment of the rotation speed of the electric assembly, and selection of gears.
  • step electric assembly temperature judgment and the step electric assembly rotation speed judgment can be performed, and the step electric assembly temperature judgment and step electric assembly speed judgment can be performed in parallel.
  • the step of determining the temperature of the electric assembly 1 includes generating a first signal for controlling the second gear position of the heat pump according to the temperature of the electric assembly 1.
  • the magnitude of the first signal corresponds to the level of the second gear position of the heat pump.
  • the heat exchanger pump 2 can work in different gears according to the first signal.
  • the gear of the heat exchanger pump 2 corresponding to the first signal output by the step of determining the temperature of the electric assembly is lower.
  • the gear of the heat exchange pump 2 corresponding to the first signal output by the step of the electric assembly temperature judgment is higher, and the gear of the heat exchange pump 2 corresponding to the first signal and the electric assembly A temperature of 1 is positively correlated.
  • the step of determining the rotation speed of the electric assembly 1 includes generating a second signal for controlling the second gear position of the heat pump according to the rotation speed of the electric assembly 1.
  • the magnitude of the second signal corresponds to the level of the heat pump 2 gear.
  • the two signals work in different gears.
  • the step of the second signal corresponding to the second signal of the rotation speed determination output of the electric assembly is lower.
  • the gear position of the heat exchange pump 2 corresponding to the second signal outputted by the step of determining the rotation speed of the electric assembly is higher, and the gear position of the heat exchange pump 2 corresponding to the second signal is positively related to the rotation speed of the electric assembly 1.
  • the step gear selection includes comparing the gear position of the heat exchanger pump 2 corresponding to the first signal with the gear position of the heat exchanger pump 2 corresponding to the second signal, and causing the heat exchanger pump 2 to operate in a high-end gear in the two gear positions.
  • the gear corresponding to the first signal is different from the gear corresponding to the second signal, the heat exchanger pump 2 works at the higher gear; when the gear corresponding to the first signal is the same as the gear corresponding to the second signal
  • the heat exchanger pump 2 works at the gear position corresponding to the first signal or the gear position corresponding to the second signal.
  • the temperature of the electric assembly 1 is determined, the rotation speed of the electric assembly is determined, and the step gear selection is performed, so that the heat exchange pump can drive the heat exchange at an appropriate gear.
  • the circulation of the medium further enables the electric assembly 1 to work in the optimal temperature range, and achieves the efficient operation of the heat exchange system 100.
  • the steps include: a heat pump self-test, a communication failure check, a step heat pump self-test, and a step communication failure check. Can be done in parallel.
  • the step of communication failure check includes detecting whether the communication line 7 of the heat exchange system 100 is faulty. If the communication failure of the heat exchange pump 2 occurs, the heat exchange pump 2 operates at the highest gear.
  • the self-check of the heat exchanger pump includes the steps of detecting the current, voltage, and speed of the heat exchanger pump 2. When at least one of the current, voltage, and speed of the heat exchanger pump 2 is not within a predetermined range, it can be determined that the heat exchanger pump 2 is faulty, and the electric assembly The heat exchange system 100 can issue a fault alarm and shut down.
  • the predetermined range of the voltage U of the heat pump 2 self-test may be: 10V ⁇ U ⁇ 50V; the predetermined range of the current I of the heat pump 2 self-test may be: 40A> I; the speed of the heat pump 2 self-test
  • the predetermined range of n2 may be: n2> 500r / min.
  • the heat exchanger pump 2 when the heat exchanger pump 2 is not faulty and the communication is faulty, the heat exchanger pump 2 can be operated at the highest gear position, so that the heat exchanger system 100 can work with sufficient power when the communication fails, and the heat exchanger system can be prevented 100 is damaged due to insufficient heat dissipation.
  • the electric assembly heat exchange system 100 is stopped, which can prevent the heat exchange system 100 from overheating due to the failure of the heat exchange pump 2 and the electric assembly 1 still working. Damage to the equipment or accident.
  • the steps of the heat exchanger pump 2 can be started.
  • the step of the heat exchange pump further includes the step of: medium temperature judgment, the step medium temperature judgment includes detecting the temperature t2 of the heat exchange medium in the heat exchange section of the electric assembly 1, and comparing the heat exchange medium in the heat exchange section. The temperature t2 is compared with the set temperature T3. If t2 ⁇ T3, enter the step to start the heat transfer pump 2.
  • the heat exchange system 100 can determine whether the heat exchange system 100 needs to be cooled based on the detection of the temperature of the cooling medium, so that the heat exchange pump 2 can be prevented from working when the heat exchange system 100 does not need to be cooled, thereby saving electricity and reducing Energy consumption of the heat exchange system 100.
  • the step of determining the medium temperature may also include the step of self-examination of the heat exchanger pump. If at least one of the current, voltage, and speed of the heat exchanger pump 2 is not within a predetermined range, it may be determined that the heat exchanger pump 2 is faulty, and the electric main The heat exchange system 100 can generate a fault. If the heat exchange pump 2 is not faulty, the temperature of the step medium is judged. This can prevent the heat exchange system 100 from starting when the heat exchange pump 2 is damaged. Parts of the heat exchange system 100 may be damaged due to overheating. happened.
  • step medium temperature judgment if t2 ⁇ T3, return to the step heat pump 2 to perform a self-test. In this way, the heat pump 2 can be detected before the heat pump 2 is started, thereby ensuring the heat exchange system 100. Reliability.
  • the heat exchanger pump 2 may have a first gear, a second gear, and a third gear, wherein the power of the heat exchanger pump 2 gradually increases from the first gear to the third gear, that is, the heat pump 2 in the first gear In the second gear, the power of the heat exchanger pump 2 is higher than that in the first gear and is in the middle gear; in the third gear, the power of the heat transfer pump 2 is the highest, which is high gear.
  • the heat exchanger pump 2 can work in these three gears (that is, with three different powers), and the step of determining the temperature of the electric assembly 1 includes: if the temperature of the electric assembly 1 is t1 ⁇ T1, the heat exchange pump corresponding to the first signal 2nd gear is the first gear; if the temperature T1 of the electric assembly 1 is ⁇ t1 ⁇ T2, the second gear of the heat pump corresponding to the first signal is the second gear; if the temperature of the electric assembly 1 is t1 ⁇ T2, the first signal
  • the corresponding heat pump 2 gear is the third gear; T1 is the first preset temperature, T2 is the second preset temperature, and T1 ⁇ T2. In this way, the heat transfer pump 2 can be selected according to the temperature of the electric assembly 1.
  • the working power of the heat pump 2 can further save energy.
  • the gear corresponding to the first signal is the first gear
  • the gear corresponding to the first signal is In the second gear
  • the gear corresponding to the first signal is the third gear.
  • the heat exchanger pump 2 may have a first gear, a second gear, and a third gear.
  • the step of determining the rotation speed of the electric assembly 1 includes: if the rotation speed of the electric assembly 1 is n ⁇ N1, the second signal corresponds to the The second gear of the heat pump is the first gear; if the speed of the electric assembly 1 is N1 ⁇ n ⁇ N2, the second gear corresponding to the second signal is the second gear; if the speed of the electric assembly 1 is n ⁇ N2, the second gear The second gear of the heat pump corresponding to the signal is the third gear.
  • N1 is the first preset speed
  • N2 is the second preset speed
  • N2 6000r / min
  • the gear corresponding to the second signal is the first gear
  • the gear corresponding to the second signal is the second gear.
  • the gear corresponding to the second signal is the third gear.
  • step electric assembly 1 temperature judgment and the step electric assembly 1 rotation speed judgment can be performed in parallel. After the above two judgment steps are completed, the step gear selection can be performed.
  • a control method of the electric assembly heat exchange system 100 according to an embodiment of the present application is described below with reference to FIG. 4.
  • the control method of the electric assembly heat exchange system 100 includes the following steps:
  • the self-check of the heat exchanger pump If the result of the self-check of the heat exchanger pump is that the heat exchanger pump 2 is faulty, the electric assembly heat exchange system 100 is stopped and a fault alarm can be displayed through the display screen 11.
  • the temperature of the step medium can be judged.
  • Step medium temperature judgment can detect the temperature of the heat exchange medium. If the result of the step medium temperature judgment is that the medium temperature t2 is not within the set range, you can return to the step heat pump self-check. If the step medium temperature judgment is the result of the medium temperature t2 being set, Within a fixed range, the heat transfer pump 2 can be started.
  • the heat exchanger pump self-check and the step communication failure check can be performed.
  • the heat exchanger pump self-check and the step communication failure check can be performed in parallel.
  • the detection result is a communication failure
  • the heat exchanger pump 2 can be in the highest gear. Work to prevent insufficient cooling of the heat exchange system 100 caused by inaccurate information transmission of the heat transfer pump 2.
  • the electric assembly heat exchange system 100 is shut down. Normally, perform step electric assembly temperature judgment and electric assembly rotation speed judgment.
  • Step electric assembly temperature judgment and step electric assembly rotation speed judgment can be performed in parallel, step electric assembly 1 temperature judgment can output a first signal, step electric assembly 1 revolution judgment can output a second signal, and the electric assembly under different circumstances
  • a temperature of 1 corresponds to different gears of the heat exchanger pump 2 (ie, the first signal)
  • the speed of the electric assembly 1 in different situations corresponds to different gears of the heat exchanger pump 2 (ie, the second signal).
  • Step temperature selection and step motor assembly speed determination can be performed in step gear selection.
  • Step gear selection can compare the gear of heat exchanger pump 2 corresponding to the first signal with the gear of heat exchanger pump 2 corresponding to the second signal, and run the heat pump 2 in a relatively higher one of the two gears, thereby It can be ensured that the heat exchange pump 2 can cool the electric assembly 1 with sufficient power.
  • step gear After the step gear is selected, it can return to the step heat pump 2 to start and start a new round of control process from the step heat pump 2.
  • the heat exchanger pump 2 After the heat exchanger pump 2 has been running in a higher gear for a period of time, it can return to the step of medium temperature judgment, so that the control method of the electric assembly heat exchange system is closed-loop control, so that the electric assembly heat exchange system can be switched on after The working state is always maintained, and the electric assembly heat exchange system is monitored and controlled in real time, which can ensure the heat exchange effect of the electric assembly heat exchange system on the electric assembly 1.
  • the present application proposes a control method for an electric assembly heat exchange system that controls the rotation speed of a cooling pump in real time according to the temperature and rotation speed of the electric assembly, which can ensure that the electric assembly works within the optimal temperature range, and achieves efficient operation of the cooling system .
  • the application also proposes an electric assembly heat exchange system.
  • the present application also proposes a vehicle.
  • the electric assembly heat exchange system includes: the electric assembly heat exchange system includes: an electric assembly, a heat exchange pump, a heat exchanger, The first port is connected to the first port of the heat exchange section of the electric assembly, and the second port of the heat exchange section of the electric assembly is connected to the first port of the heat exchanger. The second port is connected to the second port of the heat exchange pump, and the heat exchange pump has multiple gear positions; the control method includes the following steps: determining the temperature of the electric assembly, and generating a control unit based on the temperature of the electric assembly.
  • the first signal of the heat pump gear position, and the magnitude of the first signal corresponds to the level of the heat pump gear position; the speed of the electric assembly is determined, and the heat exchanger is used to control the heat pump according to the speed of the electric assembly.
  • the second signal of the gear position, the magnitude of the second signal corresponds to the height of the gear position of the heat pump; the gear position is selected and the gear position of the heat pump corresponding to the first signal is compared with the second signal Corresponding gears of the heat transfer pump, and The heat pump operation to change the gear of the two gear grade.
  • the step of determining the temperature of the step electric assembly and the step of determining the rotation speed of the step electric assembly further include: starting a heat exchanger pump.
  • the method further includes: a heat exchanger pump self-test, detecting the current, voltage, and speed of the heat exchanger pump, and detecting the current, voltage, and speed of the heat exchanger pump.
  • a fault alarm is issued and the machine is stopped.
  • the method further includes: a communication failure check to detect a communication failure of the heat exchanger pump. If the heat exchanger pump fails to communicate, the heat exchanger pump is in the highest gear. run.
  • the method before starting the step of the heat exchange pump, the method further includes: judging a medium temperature, and judging a temperature t2 of the heat exchange medium in a heat exchange section of the electric assembly. If t2 ⁇ T3, enter the step to change The heat pump starts.
  • the method before the medium temperature judgment, further includes: a self-test of the heat exchanger pump, and if at least one of the current, voltage, and rotation speed of the heat exchanger pump is not within a predetermined range, a fault alarm is issued.
  • step medium temperature judgment if t2 ⁇ T3, return to the step heat pump self-test.
  • the heat transfer pump has a first gear, a second gear, and a third gear.
  • the step of determining the temperature of the electric assembly includes: if the temperature of the electric assembly is t1 ⁇ T1, The heat pump position corresponding to the first signal is the first position; if the temperature T1 ⁇ t1 ⁇ T2 of the electric assembly, the heat pump position corresponding to the first signal is the second position; if The temperature t1 of the electric assembly is greater than or equal to T2, and the heat pump stage corresponding to the first signal is the third stage; wherein T1 is the first preset temperature, T2 is the second preset temperature, and T1 ⁇ T2 .
  • the heat exchanger pump has a first gear, a second gear, and a third gear.
  • the step of determining the rotation speed of the electric assembly includes: if the rotation speed of the electric assembly is n ⁇ N1, The heat pump position corresponding to the second signal is the first position; if the rotation speed of the electric assembly is N1 ⁇ n ⁇ N2, the heat pump position corresponding to the second signal is the second position; if The speed n of the electric assembly is n ⁇ N2, and the heat pump position corresponding to the second signal is the third speed; wherein N1 is the first preset speed, N2 is the second preset speed, and N1 ⁇ N2 .
  • the electric assembly heat exchange system includes: an electric assembly, a heat exchange pump, a heat exchanger, a motor controller, a heat exchanger pump controller, a motor temperature sensor, and a motor speed sensor; wherein the first port of the heat exchange pump Connected to the first port of the heat exchange section of the electric assembly, the second port of the heat exchange section of the electric assembly is connected to the first port of the heat exchanger, and the second port of the heat exchanger Connected to the second port of the heat exchange pump, the heat exchange pump has multiple gears, the motor controller is electrically connected to the electric assembly, and the heat exchange pump controller is electrically connected to the heat exchange pump;
  • the motor controller is used to collect the temperature and speed of the electric assembly;
  • the heat pump controller is used to process the temperature of the electric assembly and the temperature of the heat exchange medium;
  • the motor temperature sensor is used to detect the electric assembly Temperature;
  • the motor speed sensor is used to detect the speed of the electric assembly.
  • the motor controller includes: a temperature processing module, the temperature processing module is configured to collect a temperature of the electric assembly, and generate a temperature for controlling the electric assembly according to the temperature of the electric assembly.
  • the first signal of the heat pump position is a speed processing module.
  • the speed processing module is configured to collect the speed of the electric assembly and generate a speed for controlling the heat pump according to the speed of the electric assembly.
  • the second signal of the bit is configured to collect the speed of the electric assembly and generate a speed for controlling the heat pump according to the speed of the electric assembly.
  • the heat pump controller includes a gear selection module, and the gear selection module is configured to control the heat pump to operate in different gears.
  • the heat pump controller further includes: a self-test module, which is configured to detect a current, a voltage, and a rotation speed of the heat pump. When at least one of the rotation speeds is not within a predetermined range, the heat exchanger pump controller issues a failure alarm and controls the heat exchanger pump to stop.
  • the heat exchanger pump controller further includes a fault alarm module, and the fault alarm module is configured to alarm the heat pump when a fault occurs.
  • the electric assembly heat exchange system further includes a heat exchange medium temperature sensor, and the heat exchange medium temperature sensor is used to detect the temperature of the heat exchange medium in the heat exchange section of the electric assembly.
  • the electric assembly heat exchange system further includes a display screen, and the display screen is used to display working states of the heat exchange pump and the electric assembly.
  • a vehicle according to the present application includes an electric assembly heat exchange system according to the present application.

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  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
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Abstract

一种电动总成换热系统的控制方法、电动总成换热系统和车辆，电动总成换热系统包括：电动总成、换热泵、换热器；控制方法包括如下步骤：换热泵启动；电动总成温度判断，根据电动总成的温度生成用于控制换热泵档位的第一信号；电动总成转速判断，根据电动总成的转速生成用于控制换热泵档位的第二信号；档位选择，比较第一信号对应的换热泵的档位与第二信号对应的换热泵的档位，并使换热泵以两个档位中的高档档位运行。

Description

电动总成换热系统的控制方法、电动总成换热系统和车辆
本申请要求于2018年7月5日提交中国专利局、申请号为201810729011.1、申请名称为“电动总成换热系统的控制方法、电动总成换热系统和车辆”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电机散热技术领域，具体而言，涉及一种电动总成换热系统的控制方法、电动总成换热系统和车辆。
背景技术
车辆的电动总成换热系统通过电动水泵驱动换热介质对电动总成进行冷却，在冷却工程中，电动水泵以一定的功率输出，且在电动水泵损坏时，电动总成继续工作容易产生电动总成过热的问题。
相关技术中，车辆的冷却系统中的电动水泵转速固定，无法调节转速，机械损失和传热损失大，且冷却系统中，水泵不具备故障报警功能，无法判断水泵故障原因。
发明内容
本申请旨在至少解决现有技术中存在的技术问题之一。为此，本申请提出一种可以根据电动总成温度、转速实时控制冷却泵转速，可以保证电动总成工作在最佳温度范围内，实现冷却系统的高效工作的电动总成换热系统的控制方法。
本申请还提出一种电动总成换热系统。
本申请还提出一种车辆。
根据本申请的电动总成换热系统的控制方法，所述电动总成换热系统包括：所述电动总成换热系统包括：电动总成、换热泵、换热器，所述换热泵的第一端口与所述电动总成的换热部的第一端口相连，所述电动总成的换热部的第二端口与所述换热器的第一端口相连，所述换热器的第二端口与所述换热泵的第二端口相连，所述换热泵具有多个档位；所述控制方法包括如下步骤：电动总成温度判断，根据电动总成的温度，生成用于控制所述换热泵档位的第一信号，所述第一信号的大小与所述换热泵的档位的高低对应；电动总成转速判断，根据电动总成的转速，生成用于控制所述换热泵档位的第二信号，所述第二信号大小与所述换热泵的档位的高低对应；档位选择，比较所述第一信号对应的所述换热泵的档位与所述第二信号对应的所述换热泵的档位，并使所述换热泵以两个所述档位中的高 档档位运行。
根据本申请的电动总成换热系统的控制方法，通过步骤电动总成温度判断、电动总成转速判断和步骤档位选择，从而使换热泵可以以合适的档位驱动换热介质的循环，进而使电动总成可以工作在最佳温度范围内，实现换热系统的高效工作。
根据本申请的电动总成换热系统，包括：电动总成、换热泵、换热器、电机控制器、换热泵控制器、电机温度传感器、电机转速传感器；其中所述换热泵的第一端口与所述电动总成的换热部的第一端口相连，所述电动总成的换热部的第二端口与所述换热器的第一端口相连，所述换热器的第二端口与所述换热泵的第二端口相连，所述换热泵具有多个档位，所述电机控制器与所述电动总成电连接，所述换热泵控制器与所述换热泵电连接；所述电机控制器用于采集所述电动总成的温度及转速；所述换热泵控制器用于处理所述电动总成的温度、换热介质的温度；所述电机温度传感器用于检测所述电动总成的温度；所述电机转速传感器用于检测所述电动总成的转速。
根据本申请的电动总成换热系统通过包括上述部件，从而可以执行根据本申请的电动总成换热系统的控制方法。
根据本申请的车辆包括根据本申请的电动总成换热系统。
根据本申请的车辆通过设置本申请所述的电动总成换热系统，从而使车辆对电动总成可以工作在最佳的工作温度范围内，并实现换热系统的高效工作，进而使车辆具有相应的优点。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本申请一个实施例的电动总成换热系统的结构示意图；
图2是根据本申请一个实施例的电机控制器的结构示意图；
图3是根据本申请一个实施例的换热泵控制器的结构示意图；
图4是根据本申请一个实施例的电动总成换热系统的控制方法的流程图；
图5是根据本申请另一个实施例的电动总成换热系统的控制方法的流程图。
附图标记：
电动总成换热系统100；
电动总成1；换热泵2；换热器3；电机温度传感器控制器4；电机转速传感器5；换热介质温度传感器6；通讯线路7；整车冷却管路8；换热泵控制器9；电机控制器10；显示屏11；温度处理模块12；转速处理模块13；自检模块14；故障报警模块15；档位选择模块16。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
下面参考图1-图5描述根据本申请实施例的电动总成换热系统100的控制方法。
如图1-图5所示，根据本申请实施例的电动总成换热系统100包括：电动总成1、换热泵2、换热器3、电机控制器10、换热泵控制器9、换热介质温度传感器6、电机温度传感器4、电机转速传感器5。
电动总成1可以包括换热部，换热部可以集成在电动总成1的外壳上，或者电动总成1的转子和定子之间的间隙形成该换热部，换热部可以通入换热介质，换热泵2的第一端口与电动总成1的换热部的第一端口相连，电动总成1的换热部的第二端口与换热器3的第一端口相连，换热器3的第二端口与换热泵2的第二端口相连。
换热泵2的第一端口可以为出口，换热泵2的第二端口可以为入口，电动总成1的换热部的第一端口可以为入口，电动总成1的换热部的第二端口可以为出口，换热器3的第一端口可以为入口，换热器3的第二端口可以为出口。
由此，电动总成1的换热部、换热器3和换热泵2形成一个通入换热介质的回路，换热泵2用于驱动换热介质在该回路中循环，换热器3用于将由电动总成1的换热部的第二端流出的换热介质进行冷却，换热泵2可以将冷却后的换热介质从电动总成1的换热部的第一端通入电动总成1的换热部，从而开始再一次的循环。
换热介质温度传感器6用于检测电动总成1的换热部内的换热介质的温度，电机温度传感器4用于检测电动总成1的温度，电机转速传感器5用于检测电动总成1的转速。
在一些示例中，如图2所示，电机控制器10包括温度处理模块12和转速处理模块13。
在一些示例中，如图3所示，换热泵控制器9包含自检模块14、故障报警模块15和档位选择模块16。
电机控制器10用于通过采集电动总成1的温度、电机转速等实时信息，并生成信号传递给换热泵控制器9，换热泵控制器9用于处理电机控制器传递的信号，实现对换热泵2档位的控制。在一些示例中，换热器3还可以与整车冷却管路8相连，换热器3不仅可以 对电动总成换热系统100进行换热，还可以对车辆的其他部分进行换热，换热器3的热侧进口可以与电动总成1的出口相连，换热器3的热侧出口可以与换热泵的进口相连，换热部3的冷侧进口和冷侧出口可以与整车冷却管路8相连。
在一些示例中，电动总成换热系统100还可以包括显示屏11，显示屏11可以用于显示电动总成1、换热泵2的工作状态，例如电动总成1的温度、电动总成1的转速，换热泵2的电流，换热泵2的电压、换热泵2的转速等，显示屏11还可以显示电动总成换热系统100的控制方法中换热泵2自检的输出信号，即换热泵2是否故障或换热泵2通讯是否故障等，显示屏11的设置可以方便操作人员从显示屏11处查看电动总成换热系统100的工作状态。
换热泵2具可以有多个档位，电机控制器10与电动总成1电连接，换热泵控制器9与换热泵2电连接。
多个档位的换热泵2的功率不同，即当换热泵2在低档档位时，换热泵2的转速较慢，换热介质的流速较慢，换热系统100的换热介质循环较慢，换热系统100的换热效率较低，当换热泵2在高档档位时，换热泵2的转速较快，换热介质的流速较快，换热系统100的换热介质循环较快，换热系统100的换热效率较高。
根据本申请的电动总成换热系统100通过设置上述部件从而可以执行根据本申请的电动总成换热系统100的控制方法。
根据本申请的车辆包括根据本申请的电动总成换热系统100，从而使车辆对电动总成1可以工作在最佳的工作温度范围内，并实现换热系统100的高效工作，进而使车辆具有相应的优点。
下面描述上述电动总成换热系统100的控制方法。
如图4所示，电动总成换热系统100的控制方法包括如下步骤：换热泵启动、电动总成温度判断和电动总成转速判断、档位选择。
步骤换热泵启动之后，可以进行步骤电动总成温度判断和步骤电动总成转速判断，步骤电动总成温度判断和步骤电动总成转速判断可以并行进行。
如图5所示，步骤电动总成1温度判断包括根据电动总成1的温度生成用于控制换热泵2档位的第一信号，第一信号的大小与换热泵2的档位的高低对应，换热泵2可以根据第一信号以不同的档位进行工作，在电动总成1的温度较低时，步骤电动总成温度判断输出的第一信号所对应的换热泵2的档位较低，在电动总成1的温度较高时，步骤电动总成温度判断输出的第一信号所对应的换热泵2的档位较高，第一信号所对应的换热泵2的档位与电动总成1的温度正相关。
步骤电动总成1转速判断包括根据电动总成1的转速生成用于控制换热泵2档位的第 二信号，第二信号大小与换热泵2的档位的高低对应，换热泵2可以根据第二信号以不同的档位进行工作，在电动总成1的转速较低时，步骤电动总成转速判断输出的第二信号所对应的换热泵2的档位较低，在电动总成1的转速较高时，步骤电动总成转速判断输出的第二信号所对应的换热泵2的档位较高，第二信号所对应的换热泵2的档位与电动总成1的转速正相关。
步骤档位选择包括比较第一信号对应的换热泵2的档位与第二信号对应的换热泵2的档位，并使换热泵2以两个档位中的高档档位运行。当第一信号对应的档位和第二信号对应的档位不同时，换热泵2以其中较高的档位进行工作；当第一信号对应的档位与第二信号对应的档位相同时，换热泵2以第一信号对应的档位或第二信号对应的档位工作。
根据本申请实施例的电动总成换热系统100的控制方法，通过步骤电动总成1温度判断、电动总成转速判断和步骤档位选择，从而使换热泵可以以合适的档位驱动换热介质的循环，进而使电动总成1可以工作在最佳温度范围内，实现换热系统100的高效工作。
在一些实施例中，步骤换热泵启动之后且在步骤电动总成温度判断以及步骤电动总成转速判断之前还包括步骤：换热泵自检、通讯故障检查，步骤换热泵自检和步骤通讯故障检查可以并行进行。
步骤通讯故障检查包括检测换热系统100的通讯线路7是否故障，若换热泵2通讯故障则换热泵2以最高档档位运行。
步骤换热泵自检包括步骤：检测换热泵2的电流、电压、转速，在换热泵2的电流、电压、转速中的至少一个不在预定范围内时，可以判定为换热泵2故障，电动总成换热系统100可以发出故障报警并停机。
在一些示例中，换热泵2自检的电压U的预定范围可以为：10V≥U≥50V；换热泵2自检的电流I的预定范围可以为：40A＞I；换热泵2自检的转速n2的预定范围可以为：n2＞500r/min，当步骤换热泵2自检所检测的换热泵2的电压U、换热泵2的电流I和换热泵2的转速n2都在上述范围中，则判定为换热泵2无故障，当步骤换热泵2自检所检测的换热泵2的电压U、换热泵2的电流I和换热泵2的转速n2中只要有一个检测不在上述范围中，则判定换热泵2故障。
由此，当换热泵2没有故障，且通讯故障时，换热泵2可以以最高档档位运行，从而可以使换热系统100在通讯故障时可以以足够的功率进行工作，可以防止换热系统100因散热不足而损坏，当换热部故障时，电动总成换热系统100停机，从而可以防止因换热泵2故障，而电动总成1仍继续工作，所导致的换热系统100过热，损坏设备或发生事故。当通讯没有故障且换热泵2没有故障时可以进行步骤换热泵2启动。
在一些实施例中，步骤换热泵启动前还包括步骤：介质温度判断，步骤介质温度判断 包括检测电动总成1的换热部内的换热介质的温度t2，并将换热部内的换热介质的温度t2与设定温度T3对比，若t2≥T3，进入步骤换热泵2启动。
这样，换热系统100可以根据对冷却介质的温度的检测判断换热系统100是否需要冷却，从而可以避免换热泵2在换热系统100不需要冷却时工作，从而起到节约电能的作用，降低换热系统100的能耗。
在一些示例中，步骤介质温度判断前也可以包括步骤：换热泵自检，若换热泵2的电流、电压、转速中的至少一个不在预定范围内时，可以判定为换热泵2故障，电动总成换热系统100可以发出故障，若换热泵2没有故障，则进行步骤介质温度判断，这样可以防止换热泵2损坏时启动换热系统100，换热系统100工作过热而导致的部件损坏或事故的发生。
在一些实施例中，步骤介质温度判断中，若t2＜T3，返回步骤换热泵2自检，这样，当换热泵2启动之前都可以进行对换热泵2进行检测，进而保证了换热系统100的可靠性。
在一些实施例中，换热泵2可以具有第一档、第二档、第三档，其中，第一档到第三档时换热泵2的功率逐渐升高，即第一档时换热泵2的功率最低，为低档；第二档时换热泵2的功率较第一档高，为中档；第三档时换热泵2的功率最高，为高档。换热泵2可以以这三种档位(即以三种不同的功率)进行工作，步骤电动总成1温度判断，包括：若电动总成1的温度t1≤T1，第一信号对应的换热泵2档位为第一档；若电动总成1的温度T1＜t1＜T2，第一信号对应的换热泵2档位为第二档；若电动总成1的温度t1≥T2，第一信号对应的换热泵2档位为第三档；其中，T1为第一预设温度，T2为第二预设温度，且T1＜T2，这样，换热泵2可以根据电动总成1的温度选择换热泵2的工作功率，进而可以起到节约能源的作用。
在一些示例中，第一预设温度T1、第二预设温度T2可以满足：60℃≥T1≥80℃,120℃≥T2≥100℃，例如当T1＝70℃时，T2＝110℃时，当电动总成1的温度t1≤70℃时，第一信号对应的档位为第一档，当电动总成1的温度70℃≤t1≤110℃时，第一信号对应的档位为第二档，当电动总成1的温度t1≥110℃时，第一信号对应的档位为第三档。
在一些实施例中，换热泵2可以具有第一档、第二档、第三档，步骤电动总成1转速判断，包括：若电动总成1的转速n≤N1，第二信号对应的换热泵2档位为第一档；若电动总成1的转速N1＜n＜N2，第二信号对应的换热泵2档位为第二档；若电动总成1的转速n≥N2，第二信号对应的换热泵2档位为第三档；其中，N1为第一预设转速，N2为第二预设转速，且N1＜N2，这样，换热泵2可以根据电动总成1的转速选择换热泵2的工作功率，进而可以起到节约能源的作用。
在一些示例中，第一预设转速N1、第二预设转速N2可以满足：3500r/min≥N1≥ 4500r/min,、5500r/min≥N2≥6500r/min，例如当N1＝4000r/min时，N2＝6000r/min时，当电动总成1的转速n≤4000r/min时，第二信号对应的档位为第一档，当电动总成1的转速4000r/min≤n≤6000r/min时，第二信号对应的档位为第二档，当电动总成1的温度n≥6000r/min时，第二信号对应的档位为第三档。
在一些示例中，步骤电动总成1温度判断和步骤电动总成1转速判断可以并行进行，当上述两种判断步骤完成后，可以进行步骤档位选择。
下面参照图4描述根据本申请实施例的电动总成换热系统100的控制方法。
电动总成换热系统100的控制方法包括如下步骤：
上电。
换热泵自检，如步骤换热泵自检的结果为换热泵2故障，电动总成换热系统100停机并可以通过显示屏11显示故障报警。
如步骤换热泵自检结果为换热泵2正常，则可以进行步骤介质温度判断。
步骤介质温度判断可以检测换热介质的温度，如步骤介质温度判断的结果为介质温度t2不在设定范围内，可以返回步骤换热泵自检，如步骤介质温度判断的结果为介质温度t2在设定范围内则可以进行步骤换热泵2启动。
步骤换热泵2启动后可以进行步骤换热泵自检和步骤通讯故障检查，步骤换热泵自检和步骤通讯故障检查可以并行进行，当检测结果为通讯故障时，换热泵2可以以最高档档位进行工作，从而防止换热泵2信息传递不准确而导致的换热系统100冷却不足，当检测结果为换热泵2故障，电动总成换热系统100停机，当检测结果为通讯正常且换热泵2正常，进行步骤电动总成温度判断和电动总成转速判断。
步骤电动总成温度判断和步骤电动总成转速判断可以并行进行，步骤电动总成1温度判断可以输出第一信号，步骤电动总成1转速判断可以输出第二信号，并且不同情况下的电动总成1的温度对应不同的换热泵2的档位(即第一信号)，不同情况下的电动总成1的转速对应不同的换热泵2的档位(即第二信号)，当步骤电动总成温度判断和步骤电动总成转速判断完成可以进行步骤档位选择。
步骤档位选择可以比较第一信号对应的换热泵2的档位与第二信号对应的换热泵2的档位，并以两个档位中相对更高的一个运行所述换热泵2，从而可以保证换热泵2可以以足够的功率对电动总成1进行冷却。
当步骤档位选择之后可以返回到步骤换热泵2启动，从步骤换热泵2启动开启新一轮的控制过程。
当换热泵2以较高档档位运行一段时间之后，可以再返回至步骤介质温度判断，从而使电动总成换热系统的控制方法为闭环控制，进而使电动总成换热系统可以在开启后一直 保持工作状态，对电动总成换热系统起到实时监控和控制，进而可以保证电动总成换热系统对电动总成1的换热效果。
本申请旨在至少解决现有技术中存在的技术问题之一。为此，本申请提出一种根据电动总成温度、转速实时控制冷却泵转速，可以保证电动总成工作在最佳温度范围内，实现冷却系统的高效工作的电动总成换热系统的控制方法。
本申请还提出一种电动总成换热系统。
本申请还提出一种车辆。
根据本申请的电动总成换热系统的控制方法，所述电动总成换热系统包括：所述电动总成换热系统包括：电动总成、换热泵、换热器，所述换热泵的第一端口与所述电动总成的换热部的第一端口相连，所述电动总成的换热部的第二端口与所述换热器的第一端口相连，所述换热器的第二端口与所述换热泵的第二端口相连，所述换热泵具有多个档位；所述控制方法包括如下步骤：电动总成温度判断，根据电动总成的温度，生成用于控制所述换热泵档位的第一信号，所述第一信号的大小与所述换热泵的档位的高低对应；电动总成转速判断，根据电动总成的转速，生成用于控制所述换热泵档位的第二信号，所述第二信号大小与所述换热泵的档位的高低对应；档位选择，比较所述第一信号对应的所述换热泵的档位与所述第二信号对应的所述换热泵的档位，并使所述换热泵以两个所述档位中的高档档位运行。
在本申请的一个实施例中，所述步骤电动总成温度判断和所述步骤电动总成转速判断前还包括：换热泵启动。
在本申请的一个实施例中，所述步骤换热泵启动之后，还包括：换热泵自检，检测所述换热泵的电流、电压、转速，在所述换热泵的电流、电压、转速中的至少一个不在预定范围内时，发出故障报警并停机。
在本申请的一个实施例中，所述步骤换热泵启动之后，还包括：通讯故障检查，检测所述换热泵的通讯故障，若所述换热泵通讯故障则所述换热泵以最高档档位运行。
在本申请的一个实施例中，所述步骤换热泵启动前，还包括：介质温度判断，判断电动总成的换热部内的换热介质的温度t2，若t2≥T3，进入所述步骤换热泵启动。
在本申请的一个实施例中，所述介质温度判断前，还包括：换热泵自检，若所述换热泵的电流、电压、转速中的至少一个不在预定范围内时，发出故障报警。
在本申请的一个实施例中，在所述步骤介质温度判断中，若t2＜T3，返回所述步骤换热泵自检。
在本申请的一个实施例中，所述换热泵具有第一档、第二档、第三档，所述步骤电动总成温度判断，包括：若所述电动总成的温度t1≤T1，所述第一信号对应的所述换热泵档 位为第一档；若所述电动总成的温度T1＜t1＜T2，所述第一信号对应的所述换热泵档位为第二档；若所述电动总成的温度t1≥T2，所述第一信号对应的所述换热泵档位为第三档；其中，T1为第一预设温度，T2为第二预设温度，T1＜T2。
在本申请的一个实施例中，所述换热泵具有第一档、第二档、第三档，所述步骤电动总成转速判断，包括：若所述电动总成的转速n≤N1，所述第二信号对应的所述换热泵档位为第一档；若所述电动总成的转速N1＜n＜N2，所述第二信号对应的所述换热泵档位为第二档；若所述电动总成的转速n≥N2，所述第二信号对应的所述换热泵档位为第三档；其中，N1为第一预设转速，N2为第二预设转速，N1＜N2。
根据本申请的电动总成换热系统，包括：电动总成、换热泵、换热器、电机控制器、换热泵控制器、电机温度传感器、电机转速传感器；其中所述换热泵的第一端口与所述电动总成的换热部的第一端口相连，所述电动总成的换热部的第二端口与所述换热器的第一端口相连，所述换热器的第二端口与所述换热泵的第二端口相连，所述换热泵具有多个档位，所述电机控制器与所述电动总成电连接，所述换热泵控制器与所述换热泵电连接；所述电机控制器用于采集所述电动总成的温度及转速；所述换热泵控制器用于处理所述电动总成的温度、换热介质的温度；所述电机温度传感器用于检测所述电动总成的温度；所述电机转速传感器用于检测所述电动总成的转速。
在本申请的一个实施例中，所述电机控制器包括：温度处理模块，所述温度处理模块用于采集所述电动总成的温度，并根据所述电动总成的温度，生成用于控制所述换热泵档位的第一信号，转速处理模块，所述转速处理模块用于采集所述电动总成的转速，并根据所述电动总成的转速，生成用于控制所述换热泵档位的第二信号。
在本申请的一个实施例中，所述换热泵控制器包括：档位选择模块，所述档位选择模块用于控制所述换热泵以不同的档位运行。
在本申请的一个实施例中，所述换热泵控制器还包括：自检模块，所述自检模块用于检测所述换热泵的电流、电压、转速，当所述换热泵的电流、电压、转速中的至少一个不在预定范围内时，所述换热泵控制器发出故障报警并控制所述换热泵停机。
在本申请的一个实施例中，所述换热泵控制器还包括：故障报警模块，所述故障报警模块用于所述换热泵在故障时的报警。
在本申请的一个实施例中，所述电动总成换热系统还包括换热介质温度传感器，所述换热介质温度传感器用于检测所述电动总成的换热部内的换热介质的温度。
在本申请的一个实施例中，所述电动总成换热系统还包括显示屏，所述显示屏用于显示所述换热泵和所述电动总成的工作状态。
根据本申请的车辆包括根据本申请的电动总成换热系统。

Claims (17)

  1. 一种电动总成换热系统的控制方法，其特征在于，所述电动总成换热系统包括：电动总成、换热泵、换热器，所述换热泵的第一端口与所述电动总成的换热部的第一端口相连，所述电动总成的换热部的第二端口与所述换热器的第一端口相连，所述换热器的第二端口与所述换热泵的第二端口相连，所述换热泵具有多个档位；
    所述控制方法包括如下步骤：电动总成温度判断，根据电动总成的温度，生成用于控制所述换热泵档位的第一信号，所述第一信号的大小与所述换热泵的档位的高低对应；
    电动总成转速判断，根据电动总成的转速，生成用于控制所述换热泵档位的第二信号，所述第二信号大小与所述换热泵的档位的高低对应；
    档位选择，比较所述第一信号对应的所述换热泵的档位与所述第二信号对应的所述换热泵的档位，并使所述换热泵以两个所述档位中的高档档位运行。
  2. 根据权利要求1所述的电动总成换热系统的控制方法，其特征在于，所述步骤电动总成温度判断和所述步骤电动总成转速判断前还包括：
    换热泵启动。
  3. 根据权利要求2所述的电动总成换热系统的控制方法，其特征在于，所述步骤换热泵启动之后，还包括：
    换热泵自检，检测所述换热泵的电流、电压、转速，在所述换热泵的电流、电压、转速中的至少一个不在预定范围内时，发出故障报警并停机。
  4. 根据权利要求2或3所述的电动总成换热系统的控制方法，其特征在于，所述步骤换热泵启动之后，还包括：
    通讯故障检查，检测所述换热泵的通讯故障，若所述换热泵通讯故障则所述换热泵以最高档档位运行。
  5. 根据权利要求2-4中任一项所述的电动总成换热系统的控制方法，其特征在于，所述步骤换热泵启动前，还包括：
    介质温度判断，判断电动总成的换热部内的换热介质的温度t2，若t2≥T3，进入所述步骤换热泵启动。
  6. 根据权利要求5所述的电动总成换热系统的控制方法，其特征在于，所述介质温度判断前，还包括：
    换热泵自检，若所述换热泵的电流、电压、转速中的至少一个不在预定范围内时，发出故障报警。
  7. 根据权利要求6所述的电动总成换热系统的控制方法，其特征在于，在所述步骤介 质温度判断中，若t2＜T3，返回所述步骤换热泵自检。
  8. 根据权利要求1-7中任一项所述的电动总成换热系统的控制方法，其特征在于，所述换热泵具有第一档、第二档、第三档，所述步骤电动总成温度判断，包括：
    若所述电动总成的温度t1≤T1，所述第一信号对应的所述换热泵档位为第一档；
    若所述电动总成的温度T1＜t1＜T2，所述第一信号对应的所述换热泵档位为第二档；
    若所述电动总成的温度t1≥T2，所述第一信号对应的所述换热泵档位为第三档；
    其中，T1为第一预设温度，T2为第二预设温度，T1＜T2。
  9. 根据权利要求1-8中任一项所述的电动总成换热系统的控制方法，其特征在于，所述换热泵具有第一档、第二档、第三档，所述步骤电动总成转速判断，包括：
    若所述电动总成的转速n≤N1，所述第二信号对应的所述换热泵档位为第一档；
    若所述电动总成的转速N1＜n＜N2，所述第二信号对应的所述换热泵档位为第二档；
    若所述电动总成的转速n≥N2，所述第二信号对应的所述换热泵档位为第三档；
    其中，N1为第一预设转速，N2为第二预设转速，N1＜N2。
  10. 一种电动总成换热系统，其特征在于，包括：电动总成、换热泵、换热器、电机控制器、换热泵控制器、电机温度传感器、电机转速传感器；其中
    所述换热泵的第一端口与所述电动总成的换热部的第一端口相连，所述电动总成的换热部的第二端口与所述换热器的第一端口相连，所述换热器的第二端口与所述换热泵的第二端口相连，所述换热泵具有多个档位，所述电机控制器与所述电动总成电连接，所述换热泵控制器与所述换热泵电连接；
    所述电机控制器用于采集所述电动总成的温度，并根据所述电动总成的温度，生成用于控制所述换热泵档位的第一信号；
    所述电机控制器用于采集所述电动总成的转速，并根据所述电动总成的转速，生成用于控制所述换热泵档位的第二信号；
    所述换热泵控制器用于比较所述第一信号对应的所述换热泵的档位与所述第二信号对应的所述换热泵的档位，并控制所述换热泵以两个所述档位中的高档档位运行；
    所述电机温度传感器用于检测所述电动总成的温度；
    所述电机转速传感器用于检测所述电动总成的转速。
  11. 根据权利要求10所述的电动总成换热系统，其特征在于，所述电动总成换热系统还包括换热介质温度传感器，所述换热介质温度传感器用于检测所述电动总成的换热部内的换热介质的温度。
  12. 根据权利要求10或11所述的电动总成换热系统，其特征在于，所述电机控制器包括：
    温度处理模块，所述温度处理模块用于采集所述电动总成的温度，并根据所述电动总成的温度，生成用于控制所述换热泵档位的第一信号，
    转速处理模块，所述转速处理模块用于采集所述电动总成的转速，并根据所述电动总成的转速，生成用于控制所述换热泵档位的第二信号。
  13. 根据权利要求10-12中任一项所述的电动总成换热系统，其特征在于，所述换热泵控制器包括：
    档位选择模块，所述档位选择模块用于比较所述第一信号对应的所述换热泵的档位与所述第二信号对应的所述换热泵的档位，并控制所述换热泵以两个所述档位中的高档档位运行。
  14. 根据权利要求10-13中任一项所述的电动总成换热系统，其特征在于，所述换热泵控制器还包括：
    自检模块，所述自检模块用于检测所述换热泵的电流、电压、转速，当所述换热泵的电流、电压、转速中的至少一个不在预定范围内时，所述换热泵控制器发出故障报警并控制所述换热泵停机。
  15. 根据权利要求10-14中任一项所述的电动总成换热系统，其特征在于，所述换热泵控制器还包括：
    通讯故障检查模块，所述通讯故障检查模块用于检测所述换热泵的通讯故障，并在所述换热泵通讯故障时控制所述换热泵以最高档位运行。
  16. 根据权利要求10-15中任一项所述的电动总成换热系统，其特征在于，所述电动总成换热系统还包括显示屏，所述显示屏用于显示所述换热泵和所述电动总成的工作状态。
  17. 一种车辆，其特征在于，包括如权利要求10所述的电动总成换热系统。
PCT/CN2019/094862 2018-07-05 2019-07-05 电动总成换热系统的控制方法、电动总成换热系统和车辆 Ceased WO2020007361A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140303838A1 (en) * 2013-04-08 2014-10-09 Hyundai Motor Company Method for controlling water pump of vehicle and system thereof
CN204956083U (zh) * 2015-08-21 2016-01-13 简式国际汽车设计（北京）有限公司 冷却系统及电动汽车
CN105508019A (zh) * 2015-12-30 2016-04-20 安徽江淮汽车股份有限公司 一种电子水泵控制方法
CN205779198U (zh) * 2016-06-03 2016-12-07 西京学院 一种汽车发动机冷却智能控制系统
CN106979061A (zh) * 2017-03-30 2017-07-25 广州汽车集团股份有限公司 一种发动机电子水泵控制方法及系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102135030A (zh) * 2010-01-22 2011-07-27 陈宁 一种智能化的汽车发动机冷却系统
JP5538247B2 (ja) * 2011-01-18 2014-07-02 日立オートモティブシステムズ株式会社 車載回転電機用電力変換装置の冷却システム
CN105799493A (zh) * 2014-12-29 2016-07-27 上海大郡动力控制技术有限公司 纯电动汽车水泵的控制方法
CN106080173B (zh) * 2016-07-20 2018-12-25 北汽福田汽车股份有限公司 电动汽车冷却系统的控制方法、装置及电动汽车
CN108068610B (zh) * 2016-11-15 2021-07-13 大陆投资(中国)有限公司 电动车辆散热系统的控制装置和方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140303838A1 (en) * 2013-04-08 2014-10-09 Hyundai Motor Company Method for controlling water pump of vehicle and system thereof
CN204956083U (zh) * 2015-08-21 2016-01-13 简式国际汽车设计（北京）有限公司 冷却系统及电动汽车
CN105508019A (zh) * 2015-12-30 2016-04-20 安徽江淮汽车股份有限公司 一种电子水泵控制方法
CN205779198U (zh) * 2016-06-03 2016-12-07 西京学院 一种汽车发动机冷却智能控制系统
CN106979061A (zh) * 2017-03-30 2017-07-25 广州汽车集团股份有限公司 一种发动机电子水泵控制方法及系统

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