WO2024037101A1 - 混合动力发动机热管理系统、控制方法、车辆 - Google Patents
混合动力发动机热管理系统、控制方法、车辆 Download PDFInfo
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- WO2024037101A1 WO2024037101A1 PCT/CN2023/096899 CN2023096899W WO2024037101A1 WO 2024037101 A1 WO2024037101 A1 WO 2024037101A1 CN 2023096899 W CN2023096899 W CN 2023096899W WO 2024037101 A1 WO2024037101 A1 WO 2024037101A1
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- engine
- motor
- way valve
- interface
- cooling circuit
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Classifications
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- 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
- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
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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 devices
- B60H1/02—Heating, cooling or ventilating devices the heat being derived from the propulsion plant
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Definitions
- This application relates to the field of vehicle engine technology, specifically, to a hybrid engine thermal management system, control method, and vehicle.
- This application is required to be submitted to the State Intellectual Property Office of China on August 19, 2022, and the application number is 202211001206.7.
- the main purpose of this application is to provide a hybrid engine thermal management system, control method, and vehicle to solve the problem of too slow engine warm-up speed in the prior art.
- a hybrid engine thermal management system including: an engine cooling circuit, the engine cooling circuit includes an engine cooling pipeline, and the first end of the engine cooling pipeline is connected to the cooling of the engine.
- the inlet end of the pipeline is connected and arranged;
- a motor cooling circuit the motor cooling circuit includes a motor cooling pipeline, the motor cooling pipeline is arranged adjacent to the motor for heat exchange, and the inlet end of the motor cooling pipeline can be accessed through the first three-way valve.
- the engine cooling circuit and the motor The cooling circuits have an independent heat exchange mode when they perform heat exchange operations independently of each other, and a combined heat exchange mode when the engine cooling circuit and the motor cooling circuit are connected and perform heat exchange operations simultaneously.
- the engine cooling circuit includes: an electronic thermostat, the electronic thermostat is arranged at the outlet end of the cooling pipeline of the engine, and the first interface of the electronic thermostat is connected to the first interface of the second three-way valve;
- the engine radiator has an inlet end connected to the second interface of the electronic thermostat, and an outlet end of the engine radiator connected to the inlet end of the engine's cooling pipeline.
- a first water pump is provided at the inlet end of the cooling pipeline of the engine, the outlet end of the engine radiator is connected to the inlet end of the first water pump, and a pipeline located between the engine radiator and the first water pump is provided with In the first expansion water tank, the first interface of the first three-way valve is connected to the inlet end of the first water pump.
- the motor cooling circuit includes: a two-way valve, which is arranged in parallel with the inverter through a pipeline, wherein the inverter is arranged on a pipeline connecting the motor and the second three-way valve.
- a water temperature sensor is provided on the pipeline connecting the outlet end of the two-way valve and the second interface of the second three-way valve, and a water temperature sensor is provided on the pipeline connecting the water temperature sensor and the second interface of the second three-way valve.
- the second water pump wherein the third interface of the second three-way valve is connected to the second interface of the first three-way valve.
- the motor cooling circuit includes a motor system radiator, a third three-way valve and a second expansion water tank.
- the third three-way valve and the second expansion water tank are provided on the motor cooling pipeline.
- the inlet end of the motor system radiator is connected to the third expansion water tank.
- the pipeline between the second interface of the two-way and three-way valves is connected with the outlet of the second water pump, the outlet end of the motor system radiator is connected with the first interface of the third three-way valve, and the second interface of the third three-way valve is connected with the second water pump outlet.
- the third interface of the first three-way valve is connected to the third interface of the third three-way valve and the outlet of the second expansion water tank.
- the motor is arranged on the pipeline connecting the second expansion water tank and the inlet end of the two-way valve.
- a method for controlling a hybrid engine thermal management system is provided.
- the method is used to control the above-mentioned hybrid engine thermal management system.
- the locked-rotor function generates heat to heat the engine.
- the motor cooling circuit and the engine cooling circuit are connected to enter the combined heat exchange mode, in which the power required for the motor system to be locked is provided by the power Batteries provided.
- the method also includes: when it is determined that the engine is in the starting state, if the engine coolant temperature is higher than 10°C, and the engine temperature rise exceeds 10°C, or the SOC of the power battery is lower than the minimum engine starting SOC , or the vehicle's gear is shifted to a non-P gear position, or the power battery reports a failure, or the drive motor reports a failure, the locked-rotor function of the control drive motor is stopped and the drive motor is controlled to return to the torque response mode.
- the method also includes: when it is determined that the vehicle is powered on at high voltage, and if the air-conditioning system has a heating demand, controlling the engine start to heat the air-conditioning system; and after determining that the SOC of the power battery is not lower than the highest SOC for engine start. , and the power battery does not report a fault, the drive motor does not report a fault, and the gear is in P, then the power battery's stall function is turned on to generate heat to heat the engine to connect the motor cooling circuit and the engine cooling circuit. Among them, the motor system is blocked. The power required to rotate is provided by the power battery and the engine.
- the second interface of the electronic thermostat set at the engine opens the lower channel (engine cooling Before the large cycle is opened and the engine is cooled through the engine radiator 1), if the gear is in P or the vehicle is not stationary, the stall function of the drive motor will be turned on to heat the engine.
- the method also includes: when it is determined that the vehicle is powered on at high voltage, and if the air-conditioning system has a heating demand, controlling the engine start to heat the air-conditioning system; and after determining that the SOC of the power battery is not lower than the highest SOC for engine start. , and the power battery does not report a fault, the drive motor does not report a fault, and the gear is in P, then the power battery's stall function is turned on to generate heat to heat the engine to connect the motor cooling circuit and the engine cooling circuit. Among them, the motor system is blocked.
- the work required to turn The efficiency is provided by both the power battery and the engine, or when the engine is started for air conditioning heating and the power battery stall heating function is turned on, the second interface of the electronic thermostat set at the engine opens the lower channel (the engine cooling cycle is turned on, Before dissipating heat to the engine through the engine radiator 1), if the gear is in P gear or the vehicle does not remain stationary, the stall function of the drive motor is always turned on to heat the engine.
- a vehicle including a hybrid engine thermal management system, where the hybrid engine thermal management system is the above-mentioned hybrid engine thermal management system.
- the motor cooling circuit and the engine cooling circuit can be connected by switching the communication mode of the cooling circuit through the three-way valve.
- the engine cooling circuit and the motor cooling circuit have an independent heat exchange mode when they perform heat exchange operations independently of each other, and a combined heat exchange mode when the engine cooling circuit and the motor cooling circuit are connected and perform heat exchange operations at the same time.
- the engine is heated by the heat generated by the stalled heating of the motor to warm up the engine faster.
- Figure 1 shows a schematic structural diagram of a first embodiment of a hybrid engine thermal management system according to the present application
- Figure 2 shows a schematic structural diagram of a second embodiment of a hybrid engine thermal management system according to the present application.
- the above-mentioned drawings include the following reference signs: 1. Engine radiator; 2. Electronic thermostat; 3. Engine; 4. First water pump; 5. First three-way valve; 6. Second three-way valve; 7. First expansion tank; 8. Motor system Radiator; 9. Second water pump; 10. Water temperature sensor; 11. Inverter; 12. Motor; 13. Two-way valve; 14. Third three-way valve; 15. Second expansion tank; 16. Torsional shock absorption 17. Reduction gear mechanism; 18. Clutch; 19. Drive motor; 20. Differential.
- a hybrid engine thermal management system is provided.
- the hybrid engine thermal management system includes: an engine cooling circuit and a motor cooling circuit.
- the engine cooling circuit includes an engine cooling pipeline.
- the first end of the engine cooling pipeline is connected with the inlet end of the cooling pipeline of the engine 3 .
- the motor cooling circuit includes a motor cooling pipeline, which is arranged adjacent to the motor 12 for heat exchange.
- the inlet end of the motor cooling pipeline is selectively connected to the inlet end of the engine cooling pipeline through the first three-way valve 5
- the outlet end of the cooling pipeline of the engine 3 is selectively connected to the motor cooling pipeline and the first three-way valve 5 through the second three-way valve 6 .
- the engine cooling circuit and the motor cooling circuit have an independent heat exchange mode when they perform heat exchange operations independently of each other, and a combined heat exchange mode when the engine cooling circuit and the motor cooling circuit are connected and perform heat exchange operations at the same time.
- the motor cooling circuit and the engine cooling circuit can be connected by switching the communication mode of the cooling circuit through the three-way valve.
- the engine cooling circuit and the motor cooling circuit have an independent heat exchange mode when they perform heat exchange operations independently of each other, and a combined heat exchange mode when the engine cooling circuit and the motor cooling circuit are connected and perform heat exchange operations at the same time.
- the engine is heated by the heat generated by the stalled heating of the motor to warm up the engine faster.
- the engine cooling circuit includes: an engine radiator 1 and an electronic thermostat 2 .
- the electronic thermostat 2 is disposed at the outlet end of the cooling pipe of the engine 3 , and the first interface of the electronic thermostat 2 is connected to the first interface of the second three-way valve 6 .
- the inlet end of the engine radiator 1 is connected to the second interface of the electronic thermostat 2 , and the outlet end of the engine radiator 1 is connected to the inlet end of the cooling pipe of the engine 3 .
- the electronic thermostat 2 is used to control the direction of the engine coolant, so that the electronic thermostat 2 can select the direction of the coolant according to the water temperature of the engine. This setting can protect the engine temperature from being too high and ensure the safety of the engine.
- a first water pump 4 is provided at the inlet end of the cooling pipeline of the engine 3.
- the outlet end of the engine radiator 1 is connected to the inlet end of the first water pump 4, and is located between the engine radiator 1 and the first water pump 4.
- a first expansion tank 7 is provided on the pipeline between the water pumps 4 , and the first interface of the first three-way valve 5 is connected to the inlet end of the first water pump 4 .
- the coolant flows out from the engine and passes through the electronic thermostat 2.
- the first interface of the electronic thermostat 2 is opened, and the engine coolant passes through the first three-way valve 5, After the second three-way valve 6 and the first water pump 4, the water flows back to the engine.
- the coolant temperature needs to be lowered through the engine radiator 1 arranged at the front of the car. After the coolant flows out from the engine, it passes through the electronic thermostat 2. The second interface of the electronic thermostat 2 is opened, and the engine coolant flow starts The engine radiator 1 is cooled by the front wind and then flows back to the engine through the first water pump 4. This setting ensures that the engine can heat up quickly. Moreover, when a certain required temperature is reached, independent circulation can be performed through the first three-way valve and the second three-way valve.
- the motor cooling circuit includes: a two-way valve 13.
- the two-way valve 13 is arranged in parallel with the inverter 11 through a pipeline, wherein the inverter 11 is arranged to connect the motor 12 and the second on the pipeline between three-way valve 6. In this way, when the coolant flows in from the second three-way valve, the coolant does not flow through the motor inverter, which can avoid heating or cooling the motor inverter. It protects the inverter.
- a water temperature sensor 10 is provided on the pipeline connecting the outlet end of the two-way valve 13 and the second interface of the second three-way valve 6 , and the water temperature sensor 10 is connected with the second interface of the second three-way valve 6 .
- a second water pump 9 is provided on the pipeline, in which the third interface of the second three-way valve 6 is connected with the second interface of the first three-way valve 5 .
- This arrangement allows the motor cooling circuit and the engine cooling circuit to be connected through the first three-way valve and the second three-way valve.
- the motor cooling circuit can use the water temperature sensor to determine whether the coolant flows into the engine cooling circuit, ensuring the rapid heating of the engine.
- the motor cooling circuit includes a motor system radiator 8, a third three-way valve 14 and a second expansion tank 15.
- the third three-way valve 14 and the second expansion tank 15 are provided on the motor cooling pipeline.
- the motor system radiator 8 The inlet end is connected to the pipeline between the second interface of the second three-way valve 6 and the outlet of the second water pump 9, and the outlet end of the motor system radiator 8 is connected to the first interface of the third three-way valve 14.
- the second interface of the three-way valve 14 is connected to the third interface of the first three-way valve 5, the third interface of the third three-way valve 14 is connected to the outlet of the second expansion tank 15, and the motor 12 is arranged to communicate with the second expansion tank.
- the second water pump 9 is used to circulate the cooling liquid between the motor 12 and the motor inverter 11.
- the cooling liquid flowing through the motor The coolant passes through the motor system radiator 8 for heat dissipation.
- the coolant flowing through the motor does not pass through the motor system radiator 8 for heat dissipation.
- the first interface of the first three-way valve 5 It is connected with the third interface, and the first interface and the second interface of the second three-way valve 6 are connected with each other.
- the engine cooling system and the motor cooling system need to be connected.
- the first interface and the third interface of the first three-way valve 5 are connected, and the first interface of the second three-way valve 6 is connected.
- the interface is connected to the third interface, and the two-way valve 13 is opened.
- the first interface of the electronic thermostat is opened at this time, and the first water pump 4 and the second water pump 9 Under the joint action of After valve 5, the first water pump 4 flows back to the engine.
- the two-way valve 13 is opened. At this time, the coolant does not flow through the motor inverter 11 and the inverter is reduced. The absorber 11 absorbs the heat of the coolant.
- a method for controlling a thermal management system of a hybrid engine is also provided.
- the method is used to control the above-mentioned thermal management system of a hybrid engine.
- the SOC information of the power battery is obtained.
- the stall function of the starter battery generates heat to heat the engine.
- the method also includes: when it is determined that the engine is in the starting state, if the engine coolant temperature is higher than 10°C, and the engine temperature rise exceeds 10°C, or the SOC of the power battery is lower than the minimum engine starting SOC , or the vehicle's gear is shifted to a non-P gear position, or the power battery reports a failure, or the drive motor reports a failure, the locked-rotor function of the control drive motor is stopped and the drive motor is controlled to return to the torque response mode. This setting protects the motor while maintaining the temperature of the engine.
- the method also includes: when it is determined that the vehicle is powered on at high voltage, and if the air conditioning system has heating needs, controlling the engine start to provide heating to the air conditioning system. After it is determined that the SOC of the power battery is not lower than the highest SOC when the engine is started, and the power battery does not report a fault, the drive motor does not report a fault, and the gear is in P, then the stall function of the power battery is turned on to generate heat to heat the engine. Connect the motor cooling circuit and the engine cooling circuit. The power required for motor system stalling is provided by the power battery and the engine. And, when the engine is started for air conditioning heating and the power battery stall heating function is turned on, it will be set on the engine.
- the second interface of the electronic thermostat opens the lower channel (the engine cooling cycle is opened, and the engine is cooled through the engine radiator 1), if the gear is in P or the vehicle does not remain stationary, the drive motor will always be turned on.
- the stall function heats the engine. This setting can select whether the motor cooling circuit and the engine cooling circuit are connected according to different conditions of the vehicle, and protect the engine and motor.
- the method also includes: when it is determined that the vehicle is powered on at high voltage, and if the air conditioning system has heating needs, controlling the engine start to provide heating to the air conditioning system. After it is determined that the SOC of the power battery is not lower than the highest SOC when the engine is started, and the power battery does not report a fault, the drive motor does not report a fault, and the gear is in P, then the stall function of the power battery is turned on to generate heat to heat the engine. Connect the motor cooling circuit and the engine cooling circuit. The power required for motor system stalling is provided by the power battery and the engine. Or, when the engine is started for air conditioning heating and the power battery stall heating function is turned on, it will be set on the engine.
- the second interface of the electronic thermostat opens the lower channel (the engine cooling cycle is opened, and the engine is cooled through the engine radiator 1), if the gear is in P or the vehicle does not remain stationary, the drive motor will always be turned on. The stall function heats the engine.
- a vehicle including a hybrid engine thermal management system, where the hybrid engine thermal management system is the above-mentioned hybrid engine thermal management system.
- this embodiment also includes: a torsional damper 16 , a reduction gear mechanism 17 , a clutch 18 , a drive motor 19 and a differential 20 . This setting allows the vehicle engine to quickly warm up and increase the engine water temperature when the air conditioner has heating capabilities at low temperatures.
- spatially relative terms can be used here, such as “on", “on", “on the upper surface of", “above”, etc., to describe what is shown in the figure.
- the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a feature in the figure is turned upside down, then one feature described as “above” or “on top of” other features or features would then be oriented “below” or “below” the other features or features. under other devices or structures”.
- the exemplary term “over” may include both orientations “above” and “below.”
- the device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
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Abstract
一种混合动力发动机热管理系统,包括:发动机冷却回路,发动机冷却回路包括发动机冷却管路,发动机冷却管路的第一端与发动机(3)的冷却管路的进口端连通设置;电机冷却回路,电机冷却回路包括电机冷却管路,电机冷却管路与电机(12)相邻地设置以进行热交换,电机冷却管路的进口端通过第一三通阀(5)可选择地与发动机冷却管路的进口端连通设置;其中,发动机冷却回路和电机冷却回路具有相互独立进行热交换作业时的独立换热模式,以及发动机冷却回路和电机冷却回路具有相连通且同时进行热交换作业时的联合换热模式。该混合动力发动机热管理系统将电机冷却回路与发动机冷却回路联通,通过电机的堵转加热产生的热量来加热发动机,以实现发动机更快的暖机。还涉及一种混合动力发动机热管理系统的控制方法及一种车辆。
Description
本申请涉及车辆发动机技术领域,具体而言,涉及一种混合动力发动机热管理系统、控制方法、车辆,本申请要求于2022年8月19日提交至中国国家知识产权局、申请号为202211001206.7、发明名称为“混合动力发动机热管理系统、控制方法、车辆”的专利申请的优先权。
在石油资源日渐短缺的今天,面对日趋严格的油耗法规,传统纯内燃机驱动的车辆在降低油耗上成本越来越高,难度越来越大;混合动力车辆由于有电动机的辅助,在降低油耗上有很大的潜力,以欧洲厂家为代表的P2构型,以丰田为代表的双电机行星齿轮功率分流构型等都已实现量产,并取得了不错的油耗表现,获得了大众消费者的青睐;但无论是P2构型还是功率分流构型在国内应用时都面临较多的技术难题和技术壁垒,自主车型的应用上一直较为缓慢。
发明内容
本申请的主要目的在于提供一种混合动力发动机热管理系统、控制方法、车辆,以解决现有技术中发动机暖机速度过慢的问题。
为了实现上述目的,根据本申请的一个方面,提供了一种混合动力发动机热管理系统,包括:发动机冷却回路,发动机冷却回路包括发动机冷却管路,发动机冷却管路的第一端与发动机的冷却管路的进口端连通设置;电机冷却回路,电机冷却回路包括电机冷却管路,电机冷却管路与电机相邻地设置以进行热交换,电机冷却管路的进口端通过第一三通阀可选择地与发动机冷却管路的进口端连通设置,发动机的冷却管路的出口端通过第二三通阀可选择地与电机冷却管路和第一三通阀连通;其中,发动机冷却回路和电机冷却回路具有相互独立进行热交换作业时的独立换热模式,以及发动机冷却回路和电机冷却回路具有相连通且同时进行热交换作业时的联合换热模式。
进一步地,发动机冷却回路包括:电子节温器,电子节温器设置于发动机的冷却管路的出口端处,电子节温器的第一接口与第二三通阀的第一接口连通设置;发动机散热器,发动机散热器的进口端与电子节温器的第二接口连通设置,发动机散热器的出口端与发动机的冷却管路的进口端连通设置。
进一步地,发动机的冷却管路的进口端处设置有第一水泵,发动机散热器的出口端与第一水泵的进口端连通设置,且位于发动机散热器与第一水泵之间的管路上设置有第一膨胀水箱,第一三通阀的第一接口与第一水泵的进口端连通设置。
进一步地,电机冷却回路包括:二通阀,二通阀通过管路与逆变器并联地设置,其中,逆变器设置于连通电机与第二三通阀之间的管路上。
进一步地,连通二通阀的出口端与第二三通阀的第二接口之间的管路上设置有水温传感器,连通水温传感器与第二三通阀的第二接口之间的管路上设置有第二水泵,其中,第二三通阀的第三接口与第一三通阀的第二接口连通设置。
进一步地,电机冷却回路包括电机系统散热器、第三三通阀和第二膨胀水箱,第三三通阀和第二膨胀水箱设置于电机冷却管路上,电机系统散热器的进口端与连通第二三通阀的第二接口与第二水泵出口之间的管路连通,电机系统散热器的出口端与第三三通阀的第一接口连通,第三三通阀的第二接口与第一三通阀的第三接口连通,第三三通阀的第三接口与第二膨胀水箱的出口连通,电机设置于连通第二膨胀水箱与二通阀的进口端之间的管路上。
根据本申请的另一方面,提供了一种混合动力发动机热管理系统的控制方法,方法用于控制上述的混合动力发动机热管理系统,在确定车辆处于高压上电、且发动机的冷却液温度低于10℃的情况下;获取动力电池的SOC信息,在确定SOC信息大于或等于发动机起机的最高SOC、且车辆的空调系统没有采暖需求、车辆的档位为P档,则启动力电池的堵转功能产生热量来加热发动机,通过控制第一三通阀和第二三通阀使电机冷却回路和发动机冷却回路联通以进入联合换热模式,其中,电机系统堵转所需的功率由动力电池提供。
进一步地,方法还包括:在确定发动机处于起机状态的情况下,如果发动机的冷却液温度高于10℃,且发动机的温升超过10℃,或者动力电池的SOC低于发动机起机最低SOC,或者车辆的档位挂至非P挡位置处,或者动力电池报故障,或者驱动电机报故障,则控制驱动电机的堵转功能停止,控制驱动电机恢复至扭矩响应模式。
进一步地,方法还包括:在确定车辆处于高压上电的情况下,如果空调系统有采暖需求,则控制发动机启动以给空调系统供暖;在确定动力电池的SOC不低于发动机起机的最高SOC、且动力电池未报故障、驱动电机未报故障、档位为P挡,则开启动力电池的堵转功能产生热量来加热发动机,以将电机冷却回路和发动机冷却回路联通,其中,电机系统堵转所需的功率由动力电池和发动机共同提供,和当因空调采暖起动发动机并且开启动力电池堵转加热功能时,将设置于发动机处的电子节温器的第二接口开启下方通道(发动机冷却大循环开启,通过发动机散热器1给发动机散热)之前,若档位为P挡或车辆未保持静止状态,则一直开启驱动电机的堵转功能给发动机加热。
进一步地,方法还包括:在确定车辆处于高压上电的情况下,如果空调系统有采暖需求,则控制发动机启动以给空调系统供暖;在确定动力电池的SOC不低于发动机起机的最高SOC、且动力电池未报故障、驱动电机未报故障、档位为P挡,则开启动力电池的堵转功能产生热量来加热发动机,以将电机冷却回路和发动机冷却回路联通,其中,电机系统堵转所需的功
率由动力电池和发动机共同提供,或当因空调采暖起动发动机并且开启动力电池堵转加热功能时,将设置于发动机处的电子节温器的第二接口开启下方通道(发动机冷却大循环开启,通过发动机散热器1给发动机散热)之前,若档位为P挡或车辆未保持静止状态,则一直开启驱动电机的堵转功能给发动机加热。
根据本申请的另一方面,提供了一种车辆,包括混合动力发动机热管理系统,混合动力发动机热管理系统为上述的混合动力发动机热管理系统。
应用本申请的技术方案,经过三通阀切换冷却回路的联通方式,可以将电机冷却回路与发动机冷却回路联通。其中,发动机冷却回路和电机冷却回路具有相互独立进行热交换作业时的独立换热模式,以及发动机冷却回路和电机冷却回路具有相连通且同时进行热交换作业时的联合换热模式。通过电机的堵转加热产生的热量来加热发动机,以实现发动机更快的暖机。
构成本申请的一部分的说明书附图用来提供对本申请的进一步理解,本申请的示意性实施例及其说明用于解释本申请,并不构成对本申请的不当限定。在附图中:
图1示出了根据本申请的一种混合动力发动机热管理系统的第一实施例的结构示意图;
图2示出了根据本申请的一种混合动力发动机热管理系统的第二实施例的结构示意图。
其中,上述附图包括以下附图标记:
1、发动机散热器;2、电子节温器;3、发动机;4、第一水泵;5、第一三通阀;6、第
二三通阀;7、第一膨胀水箱;8、电机系统散热器;9、第二水泵;10、水温传感器;11、逆变器;12、电机;13、二通阀;14、第三三通阀;15、第二膨胀水箱;16、扭转减震器;17、减速齿轮机构;18、离合器;19、驱动电机;20、差速器。
1、发动机散热器;2、电子节温器;3、发动机;4、第一水泵;5、第一三通阀;6、第
二三通阀;7、第一膨胀水箱;8、电机系统散热器;9、第二水泵;10、水温传感器;11、逆变器;12、电机;13、二通阀;14、第三三通阀;15、第二膨胀水箱;16、扭转减震器;17、减速齿轮机构;18、离合器;19、驱动电机;20、差速器。
需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
需要注意的是,这里所使用的术语仅是为了描述具体实施方式,而非意图限制根据本申请的示例性实施方式。如在这里所使用的,除非上下文另外明确指出,否则单数形式也意图包括复数形式,此外,还应当理解的是,当在本说明书中使用术语“包含”和/或“包括”时,其指明存在特征、步骤、操作、器件、组件和/或它们的组合。
需要说明的是,本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便这里描述的本申请的实施方式例如能够以除了在这里图示或
描述的那些以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
现在,将参照附图更详细地描述根据本申请的示例性实施方式。然而,这些示例性实施方式可以由多种不同的形式来实施,并且不应当被解释为只限于这里所阐述的实施方式。应当理解的是,提供这些实施方式是为了使得本申请的公开彻底且完整,并且将这些示例性实施方式的构思充分传达给本领域普通技术人员,在附图中,为了清楚起见,有可能扩大了层和区域的厚度,并且使用相同的附图标记表示相同的器件,因而将省略对它们的描述。
结合图1至图2所示,根据本申请的具体实施例,提供了一种混合动力发动机热管理系统。
具体地,混合动力发动机热管理系统,包括:发动机冷却回路与电机冷却回路。发动机冷却回路包括发动机冷却管路,发动机冷却管路的第一端与发动机3的冷却管路的进口端连通设置。电机冷却回路包括电机冷却管路,电机冷却管路与电机12相邻地设置以进行热交换,电机冷却管路的进口端通过第一三通阀5可选择地与发动机冷却管路的进口端连通设置,发动机3的冷却管路的出口端通过第二三通阀6可选择地与电机冷却管路和第一三通阀5连通。其中,发动机冷却回路和电机冷却回路具有相互独立进行热交换作业时的独立换热模式,以及发动机冷却回路和电机冷却回路具有相连通且同时进行热交换作业时的联合换热模式。
在本实施例中,经过三通阀切换冷却回路的联通方式,可以将电机冷却回路与发动机冷却回路联通。其中,发动机冷却回路和电机冷却回路具有相互独立进行热交换作业时的独立换热模式,以及发动机冷却回路和电机冷却回路具有相连通且同时进行热交换作业时的联合换热模式。通过电机的堵转加热产生的热量来加热发动机,以实现发动机更快的暖机。
进一步地,发动机冷却回路包括:发动机散热器1与电子节温器2。电子节温器2设置于发动机3的冷却管路的出口端处,电子节温器2的第一接口与第二三通阀6的第一接口连通设置。发动机散热器1的进口端与电子节温器2的第二接口连通设置,发动机散热器1的出口端与发动机3的冷却管路的进口端连通设置。本实施例中电子节温器2用于控制发动机冷却液的走向,使得根据发动机的水温,电子节温器2可以选择冷却液的走向。这样设置可以保护发动机温度不会过高,保证发动机的安全性。
如图1所示,发动机3的冷却管路的进口端处设置有第一水泵4,发动机散热器1的出口端与第一水泵4的进口端连通设置,且位于发动机散热器1与第一水泵4之间的管路上设置有第一膨胀水箱7,第一三通阀5的第一接口与第一水泵4的进口端连通设置。本实施例中当发动机水温较低时,为了发动机快速升温,冷却液从发动机流出后经过电子节温器2,电子节温器2第一接口打开,发动机冷却液经第一三通阀5、第二三通阀6、第一水泵4后流回发动机。当发动机水温较高时,需要通过布置于车头处的发动机散热器1来降低冷却液温度,冷却液从发动机流出后经过电子节温器2,电子节温器2第二接口打开,发动机冷却液流经发动
机散热器1,用车头迎风冷却降温后,经过第一水泵4后流回发动机。这样设置可以保证发动机可快速升温。并且,当达到一定需求温度时,可通过第一三通阀与第二三通阀进行独立循环。
在本申请的另一实施例中,电机冷却回路包括:二通阀13,二通阀13通过管路与逆变器11并联地设置,其中,逆变器11设置于连通电机12与第二三通阀6之间的管路上。这样设置当冷却液从第二三通阀流入时冷却液不流经电机逆变器,可以避免对电机逆变器进行加热或冷却。对逆变器起到了保护作用。
进一步地,连通二通阀13的出口端与第二三通阀6的第二接口之间的管路上设置有水温传感器10,连通水温传感器10与第二三通阀6的第二接口之间的管路上设置有第二水泵9,其中,第二三通阀6的第三接口与第一三通阀5的第二接口连通设置。这样设置可使得电机冷却回路与发动机冷却回路通过第一三通阀与第二三通阀连接。并且,电机冷却回路可通过水温传感器决定冷却液的是否流入发动机冷却回路,保证了发动机的快速升温。
具体地,电机冷却回路包括电机系统散热器8、第三三通阀14和第二膨胀水箱15,第三三通阀14和第二膨胀水箱15设置于电机冷却管路上,电机系统散热器8的进口端与连通第二三通阀6的第二接口与第二水泵9出口之间的管路连通,电机系统散热器8的出口端与第三三通阀14的第一接口连通,第三三通阀14的第二接口与第一三通阀5的第三接口连通,第三三通阀14的第三接口与第二膨胀水箱15的出口连通,电机12设置于连通第二膨胀水箱15与二通阀13的进口端之间的管路上。
本实施例中,第二水泵9用于将冷却液在电机12和电机逆变器11间的循环,当第三三通阀14的右侧出口和下侧出口联通时,流经电机的冷却液通过电机系统散热器8进行散热,当第三三通阀14的左侧出口和右侧出口联通时,流经电机的冷却液不通过电机系统散热器8进行散热。这样设置可根据需求选择是否需要电机冷却系统的热量对发动机进行加热。使得电机冷却回路可以保证自身的冷却循环的,还能保证发动机的快速升温。
在本申请的另一实施例中,根据现实需求,当不需要利用电机冷却系统的热量对发动机进行加热时,需要将发动机冷却系统和电机冷却系统隔离,第一三通阀5的第一接口和第三接口联通,第二三通阀6的第一接口和第二接口联通。当需要利用电机冷却系统的热量对发动机进行加热时,需要将发动机冷却系统和电机冷却系统联通,第一三通阀5的第一接口和第三接口联通,第二三通阀6的第一接口和第三接口联通,二通阀13打开,由于在发动机冷却水温较低时才需要对发动机进行加热,因此此时电子节温器第一接口打开,在第一水泵4和第二水泵9的共同作用下,冷却液从发动机流出,依次经过电子节温器2,第二三通阀6,第二水泵9,二通阀13,电机12,第三三通阀14,第一三通阀5,第一水泵4后流回发动机。在利用电机冷却系统的热量加热发动机时,为了尽可能减小电机系统产生的热量加热多余的部件,所以打开二通阀13,此时冷却液不流经电机逆变器11,减小逆变器11对冷却液热量的吸收。
在本申请的另一实施例中,还提供了一种混合动力发动机热管理系统的控制方法,方法用于控制上述的混合动力发动机热管理系统。在确定车辆处于高压上电、且发动机的冷却液温度低于10℃的情况下,获取动力电池的SOC信息,在确定SOC信息大于或等于发动机起机的最高SOC、且车辆的空调系统没有采暖需求、车辆的档位为P档,则启动力电池的堵转功能产生热量来加热发动机,通过控制第一三通阀和第二三通阀使电机冷却回路和发动机冷却回路联通以进入联合换热模式,其中,电机系统堵转所需的功率由动力电池提供。这样设置可保证低温下可快速对发动机提高温度。
进一步地,方法还包括:在确定发动机处于起机状态的情况下,如果发动机的冷却液温度高于10℃,且发动机的温升超过10℃,或者动力电池的SOC低于发动机起机最低SOC,或者车辆的档位挂至非P挡位置处,或者动力电池报故障,或者驱动电机报故障,则控制驱动电机的堵转功能停止,控制驱动电机恢复至扭矩响应模式。这样设置对保持了发动机的温度的同时对电机起到了保护作用。
具体地,方法还包括:在确定车辆处于高压上电的情况下,如果空调系统有采暖需求,则控制发动机启动以给空调系统供暖。在确定动力电池的SOC不低于发动机起机的最高SOC、且动力电池未报故障、驱动电机未报故障、档位为P挡,则开启动力电池的堵转功能产生热量来加热发动机,以将电机冷却回路和发动机冷却回路联通,其中,电机系统堵转所需的功率由动力电池和发动机共同提供,和,当因空调采暖起动发动机并且开启动力电池堵转加热功能时,将设置于发动机处的电子节温器的第二接口开启下方通道(发动机冷却大循环开启,通过发动机散热器1给发动机散热)之前,若档位为P挡或车辆未保持静止状态,则一直开启驱动电机的堵转功能给发动机加热。这样设置可根据车辆不同的情况选择电机冷却回路与发动机冷却回路是否连通,并对发动机与电机起到保护作用。
具体地,方法还包括:在确定车辆处于高压上电的情况下,如果空调系统有采暖需求,则控制发动机启动以给空调系统供暖。在确定动力电池的SOC不低于发动机起机的最高SOC、且动力电池未报故障、驱动电机未报故障、档位为P挡,则开启动力电池的堵转功能产生热量来加热发动机,以将电机冷却回路和发动机冷却回路联通,其中,电机系统堵转所需的功率由动力电池和发动机共同提供,或,当因空调采暖起动发动机并且开启动力电池堵转加热功能时,将设置于发动机处的电子节温器的第二接口开启下方通道(发动机冷却大循环开启,通过发动机散热器1给发动机散热)之前,若档位为P挡或车辆未保持静止状态,则一直开启驱动电机的堵转功能给发动机加热。
在本申请的另一实施例中,还提供了一种车辆,包括混合动力发动机热管理系统,混合动力发动机热管理系统为上述的混合动力发动机热管理系统。本实施例中如图2所示,还包括:扭转减震器16、减速齿轮机构17、离合器18、驱动电机19与差速器20。这样设置使得在低温情况下,空调在低温情况下制热能力时,车辆发动机也可以快速的暖机提升发动机水温。
为了便于描述,在这里可以使用空间相对术语,如“在……之上”、“在……上方”、“在……上表面”、“上面的”等,用来描述如在图中所示的一个器件或特征与其他器件或特征的空间
位置关系。应当理解的是,空间相对术语旨在包含除了器件在图中所描述的方位之外的在使用或操作中的不同方位。例如,如果附图中的器件被倒置,则描述为“在其他器件或构造上方”或“在其他器件或构造之上”的器件之后将被定位为“在其他器件或构造下方”或“在其他器件或构造之下”。因而,示例性术语“在……上方”可以包括“在……上方”和“在……下方”两种方位。该器件也可以其他不同方式定位(旋转90度或处于其他方位),并且对这里所使用的空间相对描述作出相应解释。
除上述以外,还需要说明的是在本说明书中所谈到的“一个实施例”、“另一个实施例”、“实施例”等,指的是结合该实施例描述的具体特征、结构或者特点包括在本申请概括性描述的至少一个实施例中。在说明书中多个地方出现同种表述不是一定指的是同一个实施例。进一步来说,结合任一实施例描述一个具体特征、结构或者特点时,所要主张的是结合其他实施例来实现这种特征、结构或者特点也落在本申请的范围内。
在上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其他实施例的相关描述。
以上所述仅为本申请的优选实施例而已,并不用于限制本申请,对于本领域的技术人员来说,本申请可以有各种更改和变化。凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。
Claims (11)
- 一种混合动力发动机热管理系统,其特征在于,包括:发动机冷却回路,所述发动机冷却回路包括发动机冷却管路,所述发动机冷却管路的第一端与发动机(3)的冷却管路的进口端连通设置;电机冷却回路,所述电机冷却回路包括电机冷却管路,所述电机冷却管路与电机(12)相邻地设置以进行热交换,所述电机冷却管路的进口端通过第一三通阀(5)可选择地与所述发动机冷却管路的进口端连通设置,所述发动机(3)的冷却管路的出口端通过第二三通阀(6)可选择地与所述电机冷却管路和所述第一三通阀(5)连通;其中,所述发动机冷却回路和所述电机冷却回路具有相互独立进行热交换作业时的独立换热模式,以及所述发动机冷却回路和所述电机冷却回路具有相连通且同时进行热交换作业时的联合换热模式。
- 根据权利要求1所述的混合动力发动机热管理系统,其特征在于,所述发动机冷却回路包括:电子节温器(2),所述电子节温器(2)设置于所述发动机(3)的冷却管路的出口端处,所述电子节温器(2)的第一接口与所述第二三通阀(6)的第一接口连通设置;发动机散热器(1),所述发动机散热器(1)的进口端与所述电子节温器(2)的第二接口连通设置,所述发动机散热器(1)的出口端与所述发动机(3)的冷却管路的进口端连通设置。
- 根据权利要求2所述的混合动力发动机热管理系统,其特征在于,所述发动机(3)的冷却管路的进口端处设置有第一水泵(4),所述发动机散热器(1)的出口端与所述第一水泵(4)的进口端连通设置,且位于所述发动机散热器(1)与所述第一水泵(4)之间的管路上设置有第一膨胀水箱(7),所述第一三通阀(5)的第一接口与所述第一水泵(4)的进口端连通设置。
- 根据权利要求1或2所述的混合动力发动机热管理系统,其特征在于,所述电机冷却回路包括:二通阀(13),所述二通阀(13)通过管路与逆变器(11)并联地设置,其中,所述逆变器(11)设置于连通所述电机(12)与所述第二三通阀(6)之间的管路上。
- 根据权利要求4所述的混合动力发动机热管理系统,其特征在于,连通所述二通阀(13)的出口端与所述第二三通阀(6)的第二接口之间的管路上设置有水温传感器(10),连通所述水温传感器(10)与所述第二三通阀(6)的第二接口之间的管路上设置有第二水泵(9),其中,所述第二三通阀(6)的第三接口与所述第一三通阀(5)的第二接口连通设置。
- 根据权利要求5所述的混合动力发动机热管理系统,其特征在于,所述电机冷却回路包括电机系统散热器(8)、第三三通阀(14)和第二膨胀水箱(15),所述第三三通阀(14) 和所述第二膨胀水箱(15)设置于所述电机冷却管路上,所述电机系统散热器(8)的进口端与连通所述第二三通阀(6)的第二接口与所述第二水泵(9)出口之间的管路连通,所述电机系统散热器(8)的出口端与所述第三三通阀(14)的第一接口连通,所述第三三通阀(14)的第二接口与所述第一三通阀(5)的第三接口连通,所述第三三通阀(14)的第三接口与第二膨胀水箱(15)的出口连通,所述电机(12)设置于连通所述第二膨胀水箱(15)与所述二通阀(13)的进口端之间的管路上。
- 一种混合动力发动机热管理系统的控制方法,所述方法用于控制权利要求1至6中任一项所述的混合动力发动机热管理系统,其特征在于,在确定车辆处于高压上电、且所述发动机(3)的冷却液温度低于10℃的情况下;获取动力电池的SOC信息,在确定所述SOC信息大于或等于所述发动机(3)起机的最高SOC、且所述车辆的空调系统没有采暖需求、所述车辆的档位为P档,则启动力电池的堵转功能产生热量来加热所述发动机(3),通过控制所述第一三通阀(5)和所述第二三通阀(6)使所述电机冷却回路和所述发动机冷却回路联通以进入所述联合换热模式,其中,所述电机系统堵转所需的功率由动力电池提供。
- 根据权利要求7所述的方法,其特征在于,所述方法还包括:在确定所述发动机(3)处于起机状态的情况下,如果所述发动机(3)的冷却液温度高于10℃,且所述发动机的温升超过10℃,或者所述动力电池的SOC低于所述发动机(3)起机最低SOC,或者所述车辆的档位挂至非P挡位置处,或者所述动力电池报故障,或者驱动电机(19)报故障,则控制所述驱动电机(19)的堵转功能停止,控制驱动电机(19)恢复至扭矩响应模式。
- 根据权利要求7所述的方法,其特征在于,所述方法还包括:在确定车辆处于高压上电的情况下,如果所述空调系统有采暖需求,则控制所述发动机启动以给所述空调系统供暖;在确定所述动力电池的SOC不低于发动机(3)起机的最高SOC、且所述动力电池未报故障、驱动电机(19)未报故障、所述档位为P挡,则开启所述动力电池的堵转功能产生热量来加热发动机(3),以将所述电机冷却回路和发动机冷却回路联通,其中,电机系统堵转所需的功率由所述动力电池和所述发动机(3)共同提供,和当因空调采暖起动发动机(3)并且开启动力电池堵转加热功能时,将设置于所述发动机(3)处的电子节温器的第二接口开启下方通道(发动机(3)冷却大循环开启,通过发动机散热器(1)给发动机(3)散热)之前,若所述档位为P挡或所述车辆未保持静止状态,则一直开启所述驱动电机(19)的堵转功能给所述发动机(3)加热。
- 根据权利要求7所述的方法,其特征在于,所述方法还包括:在确定车辆处于高压上电的情况下,如果所述空调系统有采暖需求,则控制所述发 动机(3)启动以给所述空调系统供暖;在确定所述动力电池的SOC不低于发动机起机的最高SOC、且所述动力电池未报故障、驱动电机未报故障、所述档位为P挡,则开启所述动力电池的堵转功能产生热量来加热发动机,以将所述电机冷却回路和发动机冷却回路联通,其中,电机系统堵转所需的功率由所述动力电池和所述发动机(3)共同提供,或,当因空调采暖起动发动机并且开启动力电池堵转加热功能时,将设置于所述发动机(3)处的电子节温器的第二接口开启下方通道(发动机(3)冷却大循环开启,通过发动机散热器(1)给发动机(1)散热)之前,若所述档位为P挡或所述车辆未保持静止状态,则一直开启所述驱动电机(19)的堵转功能给所述发动机(3)加热。
- 一种车辆,包括混合动力发动机热管理系统,其特征在于,所述混合动力发动机热管理系统为权利要求1至6中任一项所述的混合动力发动机热管理系统。
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| CN116923038A (zh) * | 2023-08-04 | 2023-10-24 | 四川百纳全域防务科技有限公司 | 一种双节履带式全地形装甲车空调系统 |
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