EP3916208A1 - Procédé et système pour commander une pompe à eau électronique d'un moteur - Google Patents

Procédé et système pour commander une pompe à eau électronique d'un moteur Download PDF

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Publication number
EP3916208A1
EP3916208A1 EP20744840.8A EP20744840A EP3916208A1 EP 3916208 A1 EP3916208 A1 EP 3916208A1 EP 20744840 A EP20744840 A EP 20744840A EP 3916208 A1 EP3916208 A1 EP 3916208A1
Authority
EP
European Patent Office
Prior art keywords
engine
water pump
acquiring
water outlet
electronic water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20744840.8A
Other languages
German (de)
English (en)
Other versions
EP3916208A4 (fr
Inventor
Songling XIN
Jinpeng Yang
Shuanghe YAN
Yan Wang
Tao Liang
Zhonghua Yang
Yunhui Liu
Tiantian DU
Zhendong TAN
Zhao Zhang
Hao Li
Hao Zhang
Yasong GU
Dongbo FU
Qingquan DONG
Yuchen HU
Lei Ma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Great Wall Motor Co Ltd
Original Assignee
Great Wall Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Great Wall Motor Co Ltd filed Critical Great Wall Motor Co Ltd
Publication of EP3916208A1 publication Critical patent/EP3916208A1/fr
Publication of EP3916208A4 publication Critical patent/EP3916208A4/fr
Pending legal-status Critical Current

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Classifications

    • 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
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/164—Controlling of coolant flow the coolant being liquid by thermostatic control by varying pump speed
    • 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
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • 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
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/167—Controlling of coolant flow the coolant being liquid by thermostatic control by adjusting the pre-set temperature according to engine parameters, e.g. engine load, engine speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
    • 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
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P2007/168—By varying the cooling capacity of a liquid-to-air heat-exchanger
    • 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
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F01P2025/13—Ambient temperature
    • 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
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F01P2025/32—Engine outcoming fluid temperature
    • 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
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F01P2025/36—Heat exchanger mixed fluid temperature

Definitions

  • the present invention relates to the technical field of an engine cooling system, in particular to a method and a system for controlling an electronic water pump of an engine.
  • An engine is a device for converting chemical energy into mechanical energy through combustion, generating a large amount of heat energy in the process.
  • the engine itself must maintain a normal working temperature, so a suitable cooling system needs to be provided.
  • most vehicle engines adopt a mechanical water pump, and the pump speed of the mechanical water pump corresponds to the revolving speed of the engine at a certain ratio, namely the cooling water flow is only controlled by the revolving speed of the engine and cannot adapt to all working conditions, such as slowly climbing a slope, the revolving speed of the engine is low, and the cooling water flow is low.
  • the heat load is high such that the actual heat dissipation requirement of the engine cannot be met, the temperature of the engine is increased, and the operating efficiency is reduced.
  • the electronic water pump directly controls the revolving speed by an engine control unit, avoiding the influence of the revolving speed of the engine.
  • the cooling water flow can be flexibly adjusted according to the actual heat dissipation requirement of the engine. Under the working condition of low flow requirement, if the output power of the electronic water pump is reduced, the oil consumption can be reduced. Under the condition of high flow requirement, the heat load can be reduced by increasing the output power of the electronic water pump such that the air inflow and the pre-ignition angle are further improved, and the torque output is improved.
  • the present invention is intended to propose a method for controlling an electronic water pump of an engine to solve the technical problems of the mechanical water pump and the electronic water pump.
  • the present invention provides a method for controlling an electronic water pump of an engine, the method comprising:
  • acquiring a target temperature of a water outlet of the engine and a basic pump speed of the electronic water pump includes:
  • acquiring an environment temperature correction coefficient, and acquiring a target revolving speed of the electronic water pump based on the basic pump speed of the electronic water pump, the PID control correction coefficient, and the environment temperature correction coefficient include:
  • acquiring the basic pump speed of the electronic water pump based on the heat load of the combustion system of the engine and a measured temperature of a water outlet of a radiator includes:
  • the measured temperature of the water outlet of the engine is acquired by using the first temperature sensor mounted at the water outlet of the engine; and the measured temperature of the water outlet of the radiator is acquired by using a second temperature sensor mounted at the water outlet of the radiator.
  • the method for controlling an electronic water pump of an engine according to the present invention has the following advantages.
  • the control of the target revolving speed of the electronic water pump is performed in two steps.
  • Step 1 the target revolving speed of an electronic fan and a basic pump speed are output to realize the pre-control, thereby improving the system responsiveness.
  • Step 2 the basic pump speed is corrected according to PID and the environment temperature together such that the control precision is improved.
  • Another object of the present invention is to propose a system for controlling an electronic water pump of an engine to solve the technical problems of the mechanical water pump and the electronic water pump.
  • the present invention provides a system for controlling an electronic water pump of an engine, the system comprising:
  • the first acquisition module comprises:
  • the third acquisition module comprises:
  • control module comprises:
  • system further comprises:
  • the present invention provides a computing processing equipment, comprising:
  • the present invention provides a computer program, comprising the computer readable code which, when run on a computing processing equipment, causes the computing processing equipment to execute the method for controlling an electronic water pump of an engine described above.
  • the present invention provides a computer readable medium storing therein the computer program described above.
  • the system for controlling an electronic water pump of an engine according to the present invention has the following advantages.
  • the control of the target revolving speed of the electronic water pump is performed in two steps.
  • Step 1 the target revolving speed of an electronic fan and a basic pump speed are output to realize the pre-control, thereby improving the system responsiveness.
  • Step 2 the basic pump speed is corrected according to PID and the environment temperature together such that the control precision is improved.
  • an embodiment of the present invention provides a method for controlling an electronic water pump of an engine, the method including steps as follows.
  • Step 101 acquiring the target temperature of the water outlet of the engine and the basic pump speed of the electronic water pump.
  • the heat load of the combustion system of the engine and the target temperature of the water outlet of the engine are acquired by using the revolving speed of the engine, the torque of the engine, and a preset first relationship
  • the basic pump speed of the electronic water pump is acquired based on the heat load of the combustion system of the engine, the measured temperature of the water outlet of the radiator, and a preset second relationship.
  • the preset first relationship is generated based on previous experimental data.
  • the experimental data includes a preset temperature of the water outlet of the engine, revolving speed and torque of the engine required to reach the temperature obtained by using the preset temperature of the water outlet of the engine, and the heat load of the combustion system of the engine acquired by using the revolving speed and the torque of the engine.
  • the preset second relationship is also generated based on previous experimental data including the previously obtained heat load of the combustion system of the engine, the measured temperature of the water outlet of the radiator measured in real time, and the obtained basic pump speed of the electronic water pump.
  • Step 102 acquiring a PID control correction coefficient based on the target temperature of the water outlet of the engine and the measured temperature of the water outlet of the engine.
  • acquiring a PID control correction coefficient of a temperature sensor based on the target temperature of the water outlet of the engine and the measured temperature of the water outlet of the engine includes: when the target temperature of the water outlet of the engine is higher than the measured temperature of the water outlet of the engine, setting the PID control correction coefficient of the temperature sensor to a number smaller than 1, and more specifically as follows: the larger the numerical value of the target temperature of the water outlet of the engine higher than the measured temperature of the water outlet of the engine is, the smaller the PID control correction coefficient of the temperature sensor is, and the smaller the numerical value of the target temperature of the water outlet of the engine higher than the measured temperature of the water outlet of the engine is, the larger the PID control correction coefficient of the temperature sensor is.
  • the target temperature of the water outlet of the engine is 85°C
  • the measured temperature of the water outlet of the engine is 82°C
  • the PID correction coefficient is 0.96
  • the target temperature of the water outlet of the engine is 85°C
  • the measured temperature of the water outlet of the engine is 84°C
  • the PID correction coefficient is 0.98.
  • the PID control correction coefficient of the temperature sensor is set to be a number larger than 1, more specifically as follows, the larger the numerical value of the target temperature of the water outlet of the engine lower than the measured temperature of the water outlet of the engine is, the larger the PID control correction coefficient of the temperature sensor is, and the smaller the numerical value of the target temperature of the water outlet of the engine lower than the measured temperature of the water outlet of the engine is, the smaller the PID control correction coefficient of the temperature sensor is.
  • the target temperature of the water outlet of the engine is 90°C
  • the measured temperature of the water outlet of the engine is 92°C
  • the PID correction coefficient is 1.02
  • the target temperature of the water outlet of the engine is 85°C
  • the measured temperature of the water outlet of the engine is 95°C
  • the PID correction coefficient is 1.12.
  • Step 103 acquiring an environment temperature correction coefficient, and acquiring a target revolving speed of the electronic water pump based on the basic pump speed of the electronic water pump, the PID control correction coefficient, and the environment temperature correction coefficient.
  • the target revolving speed of the electronic water pump is determined by the basic pump speed of the electronic water pump, the PID control correction coefficient, and the environment temperature correction coefficient together.
  • the target revolving speed of the electronic water pump is larger than the basic pump speed of the electronic water pump;
  • the PID control correction coefficient and the environment temperature correction coefficient are smaller than 1, the target revolving speed of the electronic water pump is smaller than the basic pump speed of the electronic water pump; in a more specific embodiment, when the basic pump speed of the electronic water pump is 45000r/min, the PID control correction coefficient is 1.03, and the environment temperature correction coefficient is 1.02, the target revolving speed of the electronic water pump is 47277r/min; when the basic pump speed of the electronic water pump is 10000r/min, the PID control correction coefficient is 0.96, and the environment temperature correction coefficient is 0.98, the target revolving speed of the electronic water pump is 9408r/min.
  • Step 104 controlling the electronic water pump of the engine by using the target revolving speed of the electronic water pump.
  • the control of the target revolving speed of the electronic water pump is performed in two steps.
  • Step 1 the basic pump speed of the electronic water pump is directly output according to the heat load of the combustion system of the engine and the measured temperature of the water outlet of the radiator to realize the pre-control, thereby improving the system responsiveness.
  • Step 2 the basic pump speed of the electronic water pump is corrected according to the PID and the environment temperature together such that the control precision is improved.
  • acquiring the target temperature of the water outlet of the engine and the basic pump speed of the electronic water pump includes:
  • the relationship about the revolving speed of the engine, the torque of the engine, and the heat load of the combustion system of the engine is specifically as follows: the higher the revolving speed of the engine is, the higher the torque of the engine is, and the higher the heat load of the combustion system of the engine is. That is to say, there is a positive strong correlation about the heat load of the combustion system of the engine, the revolving speed of the engine and the torque of the engine. In particular, the higher the revolving speed is, the higher the torque is, and the higher the heat load is.
  • the heat load of the combustion system of the engine is 0.65; when the revolving speed of the engine is 1400r/min and the torque of the engine is 40Nm, the heat load of the combustion system of the engine is 0.2.
  • the target temperature of the water outlet will reach the upper limit and will not be continuously increased.
  • the target temperature of the water outlet of the radiator is 90°C
  • the target temperature of the water outlet of the radiator is 83°C.
  • the basic pump speed of the electronic water pump there is a strong correlation about the basic pump speed of the electronic water pump, the heat load of the combustion system of the engine and the measured temperature of the water outlet of the radiator.
  • the basic pump speed of the electronic water pump is 45000r/min.
  • the basic pump speed of the electronic water pump is 10000r/min.
  • the target revolving speed of the electronic fan when the heat load of the combustion system of the engine is large and the measured temperature of the water outlet of the radiator is high, the target revolving speed of the electronic fan is relatively adjusted to be high, and when the heat load of the combustion system of the engine is small and the measured temperature of the water outlet of the radiator is low, the electronic fan does not need to be turned on.
  • the target revolving speed of the electronic fan when the heat load of the combustion system of the engine is 0.65 and the measured temperature of the water outlet of the radiator is 95°C, the target revolving speed of the electronic fan is 4000r/min.
  • the target revolving speed of the electronic fan is 0r/min.
  • acquiring an environment temperature correction coefficient, and acquiring a target revolving speed of the electronic water pump based on the basic pump speed of the electronic water pump, the PID control correction coefficient, and the environment temperature correction coefficient include:
  • the environment temperature correction coefficient is a number close to 1. When the environment temperature is high, the environment temperature correction coefficient is correspondingly set to be a little large, and when the environment temperature is low, the environment temperature correction coefficient is correspondingly set to be a little small. In a more specific embodiment, the environment temperature correction coefficient is 1.02 when the environment temperature is 40°C, and 0.96 when the environment temperature is 0°C.
  • acquiring the basic pump speed of the electronic water pump based on the heat load of the combustion system of the engine and a measured temperature of a water outlet of a radiator includes:
  • the heat load of the combustion system of the engine and the target temperature of the water outlet of the engine are acquired by using the revolving speed of the engine, the torque of the engine, and the preset first relation
  • the target revolving speed of the electronic fan is acquired based on the heat load of the combustion system of the engine, the measured temperature of the water outlet of the radiator, and the preset second relation.
  • the preset first relationship is generated based on previous experimental data.
  • the experimental data includes a preset temperature of the water outlet of the engine, revolving speed and torque of the engine required to reach the temperature obtained by using the preset temperature of the water outlet of the engine, and the heat load of the combustion system of the engine acquired by using the revolving speed and the torque of the engine.
  • the preset second relationship is also generated based on previous experimental data including the previously obtained heat load of the combustion system of the engine, the measured temperature of the water outlet of the radiator measured in real time, and the obtained target revolving speed of the electronic fan.
  • the control of the target revolving speed of the electronic water pump is performed in two steps.
  • Step 1 the target revolving speed of the electronic fan and the basic pump speed are directly output according to the heat load of the combustion system of the engine and the measured temperature of the water outlet of the radiator to realize the pre-control, thereby improving the system responsiveness.
  • Step 2 the basic pump speed is corrected according to the PID and the environment temperature together such that the control precision is improved.
  • the target revolving speed of the electronic water pump is corrected, and the target revolving speed of the electronic fan is not corrected. Because the electronic fan responds slower than the electronic water pump, the stability of the system for correcting the target revolving speed of the electronic fan is higher.
  • the measured temperature of the water outlet of the engine is acquired by using the first temperature sensor mounted at the water outlet of the engine.
  • the measured temperature of the water outlet of the radiator is acquired by using the second temperature sensor mounted at the water outlet of the radiator.
  • the first temperature sensor is used for measuring the measured temperature of the water outlet of the engine in real time such that the electronic water pump is accurately controlled.
  • the measured temperature of the water outlet of the radiator is measured in real time by using the second temperature sensor such that the electronic water pump is accurately controlled.
  • the control of the target revolving speed of the electronic water pump is performed in two steps.
  • Step 1 the target revolving speed of the electronic fan and the basic pump speed are directly output according to the heat load of the combustion system of the engine and the measured temperature of the water outlet of the radiator to realize the pre-control, thereby improving the system responsiveness.
  • Step 2 the basic pump speed is corrected according to the PID and the environment temperature together such that the control precision is improved.
  • the temperature is the manifestation of the heat load, the heat load transfers heat to the wall surface through the combustion chamber, and the heat is taken away by the cooling water so the temperature of the cooling water is increased. Then the cooling water at the wall surface flows to the temperature sensor which needs a certain period of time resulting in hysteresis.
  • the heat load is sharply increased in a sudden acceleration process, but at such time the temperature at the sensor hardly changes.
  • the electronic water pump is only controlled by the PID of the temperature sensor, the revolving speed of the electronic water pump does not change, that is, the heat dissipation amount of the combustion chamber does not change.
  • a large heat dissipation amount is needed at the time such that it is ensured that local overheating of the combustion chamber does not occur to damage the engine.
  • the revolving speed of the electronic water pump will immediately react such that the revolving speed is increased, the heat dissipation amount is increased, and the local overheating of the combustion chamber is prevented. Therefore, compared with the PID control only according to temperature, the pre-control improves the responsiveness and ensures the safety of the engine. Because of scattered errors in production, the electronic water pump may not reach the target temperature of the water outlet of the engine under the condition of the basic pump speed. So PID correction is carried out to improve the control precision.
  • the heat dissipation amount is strongly correlated with the environment temperature, the lower the environment temperature is, the more favorable it is to the heat dissipation of the cooling water, and the revolving speed of the electronic water pump can be reduced to achieve the same heat dissipation effect, and on the contrary, the revolving speed of the electronic water pump needs to be increased to reach the same heat dissipation effect such that the environment temperature correction coefficient is increased, and the control precision is further improved; according to the embodiment, the target revolving speed of the electronic fan is not corrected, and it is because the electronic fan responds slower than the electronic water pump such that the stability of the system for correcting the target revolving speed of the electronic fan is higher.
  • the present invention also provides a system for controlling an electronic water pump of an engine, the system including: a system for controlling an electronic water pump of an engine, the system including:
  • the first acquisition module 301 includes:
  • the third acquisition module 303 includes:
  • control module 304 includes:
  • system further includes:
  • Various component embodiments of the present invention may be implemented in hardware, in software modules running on one or more processors, or in a combination thereof.
  • a microprocessor or digital signal processor may be used in practice to implement some or all of the functions of some or all of the components in computing processing equipment according to embodiments of the present invention.
  • the present invention may also be implemented as equipment or device program (e.g., a computer program and a computer program product) for executing part or all of the method described herein.
  • Such a program implementing the present invention may be stored on a computer readable medium, or may take the form of one or more signals. Such signals may be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.
  • Fig. 4 illustrates computing processing equipment that may implement the method according to the present invention.
  • the computing processing equipment conventionally includes a processor 1010 and a computer program product or computer-readable medium in the form of a memory 1020.
  • Memory 1020 may be electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read Only Memory), EPROM, hard disk, or ROM.
  • the memory 1020 has a storage space 1030 for a program code 1031 for executing any of the method steps of the method.
  • the storage space 1030 for program code may include respective program code 1031 for implementing the various steps in the above method, respectively.
  • These program codes may be read from or written to one or more computer program products.
  • Such computer program products include program code carriers such as hard disks, compact disks (CDs), memory cards, or floppy disks.
  • Such a computer program product is typically a portable or fixed storage unit as described with reference to Fig. 5 .
  • the storage unit may have storage segments, storage space, etc. arranged similarly to the memory 1020 in the computing processing equipment of Fig. 4 .
  • the program code may be compressed, for example, in a suitable form.
  • the storage unit includes the computer readable code 1031', i.e. the code readable by a processor, such as, for example 1010, which, when run by computing processing equipment, causes the computing processing equipment to execute each step of the method described above.
  • any reference marks placed between parentheses shall not be construed as limiting the claim.
  • the word “comprise” does not exclude the presence of elements or steps not listed in the claim.
  • the word “a” or “one” preceding an element does not exclude the presence of a plurality of such elements.
  • the present invention may be implemented by means of the hardware including several different elements, and by means of a suitably programmed computer. In the unit claims enumerating several devices, several of these devices can be specifically embodied by the same hardware item.
  • the use of the words first, second, third, etc. does not indicate any order. These words can be interpreted as names.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
EP20744840.8A 2019-01-24 2020-01-15 Procédé et système pour commander une pompe à eau électronique d'un moteur Pending EP3916208A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910069236.3A CN110805487B (zh) 2019-01-24 2019-01-24 一种发动机电子水泵的控制方法和系统
PCT/CN2020/072190 WO2020151544A1 (fr) 2019-01-24 2020-01-15 Procédé et système pour commander une pompe à eau électronique d'un moteur

Publications (2)

Publication Number Publication Date
EP3916208A1 true EP3916208A1 (fr) 2021-12-01
EP3916208A4 EP3916208A4 (fr) 2022-07-20

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EP (1) EP3916208A4 (fr)
CN (1) CN110805487B (fr)
WO (1) WO2020151544A1 (fr)

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CN113685258B (zh) * 2021-07-15 2022-06-28 东风汽车集团股份有限公司 发动机电子水泵的控制方法及终端设备
CN114899447A (zh) * 2022-04-25 2022-08-12 一汽解放汽车有限公司 散热控制方法、装置、计算机设备和存储介质
CN114636519B (zh) * 2022-05-17 2022-08-09 杭州泰尚智能装备有限公司 电子水泵气密测试机构及其控制方法
CN115163281B (zh) * 2022-06-15 2024-01-12 重庆长安汽车股份有限公司 一种发动机热管理系统的电子水泵控制方法及系统
CN115492674A (zh) * 2022-09-26 2022-12-20 长城汽车股份有限公司 电动水泵和散热风扇的控制方法及装置
CN115773174B (zh) * 2022-11-26 2024-03-29 重庆长安汽车股份有限公司 一种发动机电子水泵的控制方法及系统
CN115962040A (zh) * 2023-02-02 2023-04-14 重庆赛力斯新能源汽车设计院有限公司 一种发动机冷却控制方法、系统、设备及存储介质

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CN110805487B (zh) 2020-10-27
CN110805487A (zh) 2020-02-18

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