Heat management water side manifold adaptive to vehicle and control method

Abstract

The invention relates to the technical field of vehicle thermal management, and discloses a thermal management water side manifold adaptive to a vehicle and a control method. A radiator outlet, a radiator inlet, a PTC water inlet, a warm air water outlet, a motor water outlet, a motor water inlet, a battery water inlet and a battery water outlet are integrally cast and formed in the modular body, and the radiator outlet and the radiator inlet are used for being connected with an external main radiator. According to the integrated modular body, interfaces of a driving motor cooling loop, a battery heat management loop and a cabin warm air loop, a water pump mounting seat, an electronic control valve mounting seat and a temperature sensor interface are integrated into the integrated modular body, so that the number of joints is reduced, the risk of leakage of cooling liquid is reduced, and the overall weight of the system is also reduced; meanwhile, each loop is controlled by an independent water pump and an electronic control valve, so that the temperature management of the driving motor, the power battery and the passenger compartment can work independently or cooperatively.

Description

Technical Field

[0001] This invention relates to the field of vehicle thermal management technology, and in particular to a water-side manifold adapted for vehicle thermal management and its control method. Background Technology

[0002] The thermal management system of new energy vehicles is a key component in ensuring their safe and efficient operation. It requires precise temperature control of multiple core components, including the drive motor, electronic control system, power battery, and passenger compartment. In traditional automotive thermal management systems, the coolant circuits of each component are mostly connected by independent pipelines with numerous joints. This method not only occupies a lot of space and has a complex pipeline layout, but it is also prone to leakage risks, and it also increases the weight of the entire vehicle and the difficulty of assembly.

[0003] An existing patent (publication number: CN223511007U) discloses an integrated water-side modular manifold that combines high-flow-rate cooling pipes and low-flow-rate cooling pipes together. It has a high degree of integration, occupies less space, is easy to use and install, and is highly practical. It includes a mounting frame with vehicle mounting points. It also includes a high-flow-rate cooling pipe mechanism and a low-flow-rate cooling pipe mechanism, both of which are installed at the front end of the mounting frame.

[0004] Although this application integrates high-flow-rate and low-flow-rate cooling pipes, resulting in a high degree of integration, small footprint, ease of use, and convenient installation, it is difficult to achieve efficient heat utilization and coordinated management between different components, leading to energy waste and low thermal management efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a water-side manifold and control method adapted for automotive thermal management, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a water-side manifold adapted for automotive thermal management, comprising a modular body made of plastic material, wherein the modular body is integrally cast with a radiator outlet, a radiator inlet, a PTC inlet, a heater outlet, a motor outlet, a motor inlet, a battery inlet, and a battery outlet; the radiator outlet and radiator inlet are used to connect to an external main radiator; the PTC inlet is used to connect to a PTC water heater; the heater outlet is used to connect to the passenger compartment heater core; the motor outlet and motor inlet are used to connect to a drive motor / electronic control unit; and the battery inlet and battery outlet are used to connect to a power battery liquid cooling plate. The modular body is also provided with a first water pump mounting base, a second water pump mounting base and a third water pump mounting base for installing a drive water pump, as well as a first solenoid valve mounting base and a second solenoid valve mounting base for installing an electronic control valve. The radiator outlet and radiator inlet are located on one side of the modular body, the motor water inlet and battery water inlet are located on the other side of the modular body opposite to the radiator outlet, and the PTC water inlet and warm air outlet are located on the upper side of the modular body.

[0007] Preferably, the main body also integrates a first temperature sensor interface, a second temperature sensor interface, and a third temperature sensor interface. The first temperature sensor interface is used to install a first temperature sensor for real-time monitoring of the temperature of the coolant flowing out of the main radiator. The second temperature sensor interface is used to install a second temperature sensor for real-time monitoring of the temperature of the coolant entering the power battery liquid cooling plate. The third temperature sensor interface is used to install a third temperature sensor for real-time monitoring of the temperature of the coolant flowing out of the drive motor / electronic control unit.

[0008] Preferably, the main body is provided with an expansion tank mounting point, which is used to fix the expansion tank of the system.

[0009] Preferably, the main body is provided with a first positioning pin, a second positioning pin and a plurality of water-side mounting points. The first positioning pin and the second positioning pin are both used for positioning the assembly, and the water-side mounting points are used to fix the modular main body to the vehicle body or mounting bracket.

[0010] Preferably, the first water pump mounting bracket is used to install the drive motor cooling circuit water pump, the second water pump mounting bracket is used to install the battery thermal management circuit water pump, and the third water pump mounting bracket is used to install the cabin heating circuit water pump.

[0011] Preferably, the first solenoid valve mounting base and the second solenoid valve mounting base are used to install the first electronic control valve and the second electronic control valve, respectively, and the valve cores of the first electronic control valve and the second electronic control valve are located in the internal flow channel of the manifold body. The first solenoid valve mounting base and the second solenoid valve mounting base are respectively provided with a first solenoid valve mounting positioning point and a second solenoid valve mounting positioning point to assist in the installation and positioning of the electronic control valve.

[0012] Preferably, the modular body is further provided with a Chiller outlet and a Chiller inlet. The Chiller outlet is connected to the battery inlet on the manifold via an external pipe, and the Chiller inlet is connected to the battery outlet via an external pipe.

[0013] The present invention also provides a control method adapted to a vehicle thermal management water-side manifold, comprising the following steps: S1. First, initialize the system and obtain the coolant temperature T1 flowing out of the drive motor / electronic control, the coolant temperature T2 entering the power battery liquid cooling plate, and the coolant temperature T3 flowing out of the main radiator through the first temperature sensor interface, the second temperature sensor interface, and the third temperature sensor interface, respectively, and send these temperature data to the vehicle controller or thermal management controller. S2. The vehicle controller or thermal management controller compares and analyzes the obtained T1, T2, and T3 with the preset target temperature thresholds for each component to determine the current demand status of each thermal management loop. S3. Based on the analysis results of S2, the vehicle controller or thermal management controller sends control commands to the electronic control valves and water pumps of the corresponding circuits. S4. During the control process, the changes of T1, T2 and T3 are continuously monitored by the first temperature sensor, the second temperature sensor and the third temperature sensor, and the monitoring data is fed back to the vehicle controller or thermal management controller. The vehicle controller or thermal management controller dynamically adjusts the opening degree of the electronic control valve and the speed of the water pump according to the deviation between the feedback temperature and the target temperature.

[0014] The technical effects and advantages of this invention are as follows: This invention integrates the interfaces of the drive motor cooling circuit, battery thermal management circuit, and cabin heating circuit, as well as the water pump mounting base, electronic control valve mounting base, and temperature sensor interface into a single modular body. This not only reduces the number of joints and lowers the risk of coolant leakage, but also reduces the overall weight of the system. At the same time, each circuit is controlled by an independent water pump and electronic control valve, enabling the temperature management of the drive motor, power battery, and passenger compartment to work independently or collaboratively. In addition, multiple temperature sensors can monitor the temperature of key nodes in real time, further improving the response speed and energy utilization efficiency of the thermal management system. This solves the problems of complex piping, high leakage risk, and insufficient heat coordination management in traditional systems. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of a water-side manifold adapted for automotive thermal management according to the present invention; Figure 2 This is a rear view schematic diagram of a water-side manifold adapted for automotive thermal management according to the present invention; Figure 3 This invention provides a water-side manifold adapted for automotive thermal management. Figure 2 Enlarged view of point A in the middle; Figure 4 This invention provides a water-side manifold adapted for automotive thermal management. Figure 2 Enlarged view of point B in the middle; Figure 5This invention provides a water-side manifold adapted for automotive thermal management. Figure 2 Enlarged view of point C in the middle.

[0016] In the diagram: 1. First locating pin; 2. Second locating pin; 3. Water-side mounting point; 4. Radiator outlet; 5. Radiator inlet; 6. PTC inlet; 7. Heater outlet; 8. Motor outlet; 9. Motor inlet; 10. Battery inlet; 11. Battery outlet; 12. First water pump mounting base; 13. Second water pump mounting base; 14. Third water pump mounting base; 15. First solenoid valve mounting base; 16. Second solenoid valve mounting base; 17. First temperature sensor interface; 18. Second temperature sensor interface; 19. Third temperature sensor interface; 20. Second solenoid valve mounting point; 21. First solenoid valve mounting point; 22. Kettle mounting point; 23. Chiller outlet; 24. Chiller inlet. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] Example 1

[0019] This invention provides, for example Figures 1 to 5The illustrated vehicle heat management water-side manifold includes a modular body made of plastic. The modular body integrates and cast radiator outlet 4, radiator inlet 5, PTC inlet 6, heater outlet 7, motor outlet 8, motor inlet 9, battery inlet 10, and battery outlet 11. Radiator outlet 4 and radiator inlet 5 are used to connect to the external main radiator; PTC inlet 6 is used to connect to the PTC water heater; heater outlet 7 is used to connect to the passenger compartment heater core; motor outlet 8 and motor inlet 9 are used to connect to the drive motor / electronic control unit; and battery inlet 10 and battery outlet 11 are used to connect to the power battery liquid cooling plate. Radiator outlet 4 and radiator inlet 5 are located on one side of the modular body. Motor inlet 9 is connected to the battery... The pool inlet 10 is located on the other side of the modular body opposite to the radiator outlet 4. The PTC inlet 6 and the warm air outlet 7 are located on the upper side of the modular body. Integrating multiple functional interfaces and mounting bases into the modular body not only reduces the number of joints, lightens the system weight, and improves assembly efficiency, but also reduces the risk of leakage. At the same time, the first water pump mounting base 12, the second water pump mounting base 13, and the third water pump mounting base 14 are used to install the drive motor cooling circuit water pump, the battery thermal management circuit water pump, and the cabin warm air circuit water pump, respectively, so that the coolant circulation of each circuit can be controlled independently. Together with the first solenoid valve mounting base 15 and the second solenoid valve mounting base 16 used to install the electronic control valve, the switching control efficiency of the coolant between different circuits is improved.

[0020] The main body also integrates a first temperature sensor interface 17, a second temperature sensor interface 18, and a third temperature sensor interface 19. The first temperature sensor interface 17 is used to install a first temperature sensor to monitor the temperature of the coolant flowing out of the main radiator in real time. The second temperature sensor interface 18 is used to install a second temperature sensor to monitor the temperature of the coolant entering the liquid cooling plate of the power battery in real time. The third temperature sensor interface 19 is used to install a third temperature sensor to monitor the temperature of the coolant flowing out of the drive motor / electronic control in real time. It can collect key temperature data of the drive motor / electronic control, power battery, and main radiator in real time, and perform real-time monitoring and feedback adjustment of the temperature status of each core component, thereby improving the response speed of the thermal management system.

[0021] Preferably, the main body is provided with an expansion tank mounting point 22, which is used to fix and install the system expansion tank. Integrating the expansion tank into the modular main body not only reduces additional pipe connections, but also facilitates the replenishment of coolant and the stabilization of system pressure, further improving the space utilization of the thermal management system.

[0022] The main body is provided with a first positioning pin 1, a second positioning pin 2, and multiple water-side mounting points 3. The first positioning pin 1 and the second positioning pin 2 are used for positioning the assembly installation. The water-side mounting points 3 are used to fix the modular body to the vehicle body or mounting bracket. The first positioning pin 1 and the second positioning pin 2 can improve the accuracy of the relative position between the modular body and the vehicle body or mounting bracket, and avoid misalignment of pipeline connections or interference of components due to installation deviation. At the same time, the multiple water-side mounting points 3 can further fix the modular body, so that the modular body remains stable during vehicle operation and prevents the sealing performance of each interface and internal flow channel from being affected by loosening.

[0023] The modular body is also equipped with a first water pump mounting base 12, a second water pump mounting base 13, and a third water pump mounting base 14 for installing drive water pumps, and a first solenoid valve mounting base 15 and a second solenoid valve mounting base 16 for installing electronic control valves. The first water pump mounting base 12 is used to install the drive motor cooling circuit water pump, the second water pump mounting base 13 is used to install the battery thermal management circuit water pump, and the third water pump mounting base 14 is used to install the cabin heating circuit water pump. By independently installing each circuit water pump in its corresponding water pump mounting base, the motor cooling, battery thermal management, and cabin heating circuits can be independently controlled for water circulation. This allows for adjustment of the coolant flow rate of each circuit according to the real-time thermal management needs of different components, avoiding energy waste under traditional centralized water pump control and improving the energy utilization efficiency of the thermal management system. When only the power battery needs to be heated, the battery thermal management circuit water pump on the second water pump mounting base 13 can be started independently without driving other circuit water pumps, effectively reducing unnecessary energy consumption.

[0024] The first solenoid valve mounting base 15 and the second solenoid valve mounting base 16 are used to install the first electronic control valve and the second electronic control valve, respectively. The valve cores of the first and second electronic control valves are located in the internal flow channels of the manifold body and are used to switch the flow path of coolant between different circuits. The first solenoid valve mounting base 15 and the second solenoid valve mounting base 16 are respectively provided with a first solenoid valve mounting positioning point 21 and a second solenoid valve mounting positioning point 20 to assist in the installation and positioning of the electronic control valve. The valve core of the electronic control valve is directly placed in the internal flow channel of the manifold body, which shortens the response time of coolant path switching and avoids the flow resistance loss and response delay caused by pipeline connection of traditional external valves. At the same time, the first solenoid valve mounting positioning point 21 and the second solenoid valve mounting positioning point 20 facilitate the docking of the electronic control valve with the flow channel of the modular body and prevent valve core jamming or coolant leakage due to installation deviation.

[0025] The modular body is also equipped with a chiller outlet 23 and a chiller inlet 24. The chiller outlet 23 is connected to the battery inlet 10 on the manifold through an external pipe, and the chiller inlet 24 is connected to the battery outlet 11 through an external pipe, forming an active cooling loop of battery pack - battery outlet 11 - chiller inlet 24 - chiller - chiller outlet 23 - battery inlet 10 - battery pack. When the battery temperature exceeds the optimal operating range, the coolant can exchange heat with the refrigerant of the air conditioning system through the chiller, so that the battery can be cooled down quickly, thereby keeping the battery in a suitable operating temperature range in high-temperature environments and avoiding performance degradation or shortened life due to overheating.

[0026] Example 2

[0027] The present invention also provides a control method adapted to a vehicle thermal management water-side manifold, comprising the following steps: S1. First, initialize the system and obtain the coolant temperature T1 flowing out of the drive motor / electronic control, the coolant temperature T2 entering the power battery liquid cooling plate, and the coolant temperature T3 flowing out of the main radiator through the first temperature sensor interface 17, the second temperature sensor interface 18, and the third temperature sensor interface 19, respectively, and send these temperature data to the vehicle controller or thermal management controller.

[0028] S2. The vehicle controller or thermal management controller compares and analyzes the acquired T1, T2, and T3 with the preset target temperature thresholds for each component to determine the current demand status of each thermal management circuit. When the coolant temperature T1 flowing out of the drive motor / electronic control is higher than its set upper limit of normal operating temperature, it is determined that the drive motor cooling circuit needs to enhance heat dissipation. When the coolant temperature T2 entering the power battery liquid cooling plate is lower than the lower limit of the optimal operating temperature of the power battery, it is determined that the battery thermal management circuit needs to start heating or reduce cooling. When the coolant temperature T3 flowing out of the main radiator is low and there is a need for heating in the passenger compartment, it is determined that the cabin heating circuit should prioritize the use of system waste heat.

[0029] S3. Based on the analysis results of S2, the vehicle controller or thermal management controller sends control commands to the electronic control valves and water pumps of the corresponding circuits. If the drive motor cooling circuit needs enhanced heat dissipation, the first electronic control valve is switched to the fully open state of the main radiator passage, and the drive motor cooling circuit water pump on the first water pump mounting base 12 is instructed to increase its speed, increase the coolant flow, and accelerate the dissipation of heat through the main radiator. If the battery needs heating, the second electronic control valve is controlled to open the passage between the PTC water heater and the battery inlet 10, and the battery thermal management circuit water pump on the second water pump mounting base 13 is started, so that the coolant heated by the PTC enters the power battery liquid cooling plate. If the cabin needs warm air and the T3 temperature is suitable, the second electronic control valve is controlled to switch to the warm air core passage, and the cabin warm air circuit water pump on the third water pump mounting base 14 is started to deliver coolant to the passenger compartment warm air core for heat exchange.

[0030] S4. During the control process, the changes of T1, T2 and T3 are continuously monitored by the first temperature sensor, the second temperature sensor and the third temperature sensor, and the monitoring data is fed back to the vehicle controller or thermal management controller. The vehicle controller or thermal management controller dynamically adjusts the opening degree of the electronic control valve and the speed of the water pump according to the deviation between the feedback temperature and the target temperature.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water-side manifold adapted for automotive heat management, comprising a modular body made of plastic, characterized in that: The modular body is integrally cast with a radiator outlet (4), a radiator inlet (5), a PTC inlet (6), a warm air outlet (7), a motor outlet (8), a motor inlet (9), a battery inlet (10), and a battery outlet (11). The radiator outlet (4) and the radiator inlet (5) are used to connect to the external main radiator. The PTC inlet (6) is used to connect to the PTC water heater. The warm air outlet (7) is used to connect to the passenger compartment warm air core. The motor outlet (8) and the motor inlet (9) are used to connect to the drive motor / electronic control. The battery inlet (10) and the battery outlet (11) are used to connect to the power battery liquid cooling plate. The modular body is also provided with a first water pump mounting base (12), a second water pump mounting base (13) and a third water pump mounting base (14) for installing a drive water pump, and a first solenoid valve mounting base (15) and a second solenoid valve mounting base (16) for installing an electronic control valve. The radiator outlet (4) and radiator inlet (5) are located on one side of the modular body, the motor inlet (9) and battery inlet (10) are located on the other side of the modular body relative to the radiator outlet (4), and the PTC inlet (6) and warm air outlet (7) are located on the upper side of the modular body.

2. The water-side manifold for vehicle heat management according to claim 1, characterized in that: The main body also integrates a first temperature sensor interface (17), a second temperature sensor interface (18), and a third temperature sensor interface (19). The first temperature sensor interface (17) is used to install a first temperature sensor to monitor the temperature of the coolant flowing out of the main radiator in real time. The second temperature sensor interface (18) is used to install a second temperature sensor to monitor the temperature of the coolant entering the power battery liquid cooling plate in real time. The third temperature sensor interface (19) is used to install a third temperature sensor to monitor the temperature of the coolant flowing out of the drive motor / electronic control in real time.

3. The water-side manifold for vehicle heat management according to claim 1, characterized in that: The main body is provided with an expansion tank mounting point (22), which is used to fix the expansion tank of the system.

4. The water-side manifold for vehicle heat management according to claim 1, characterized in that: The main body is provided with a first positioning pin (1), a second positioning pin (2) and a plurality of water-side mounting points (3). The first positioning pin (1) and the second positioning pin (2) are both used for positioning the assembly installation, and the water-side mounting points (3) are used to fix the modular main body to the vehicle body or mounting bracket.

5. A water-side manifold adapted for automotive heat management according to claim 1, characterized in that: The first water pump mounting bracket (12) is used to install the drive motor cooling circuit water pump, the second water pump mounting bracket (13) is used to install the battery thermal management circuit water pump, and the third water pump mounting bracket (14) is used to install the cabin heating circuit water pump.

6. A water-side manifold adapted for automotive heat management according to claim 1, characterized in that: The first solenoid valve mounting base (15) and the second solenoid valve mounting base (16) are respectively used to install the first electronic control valve and the second electronic control valve. The valve cores of the first electronic control valve and the second electronic control valve are located in the internal flow channel of the manifold body. The first solenoid valve mounting base (15) and the second solenoid valve mounting base (16) are respectively provided with a first solenoid valve mounting positioning point (21) and a second solenoid valve mounting positioning point (20) to assist in the installation and positioning of the electronic control valve.

7. A water-side manifold adapted for automotive heat management according to claim 1, characterized in that: The modular body is also provided with a Chiller outlet (23) and a Chiller inlet (24). The Chiller outlet (23) is connected to the battery inlet (10) on the manifold through an external pipe, and the Chiller inlet (24) is connected to the battery outlet (11) through an external pipe.

8. A control method adapted to a vehicle thermal management water-side manifold, used in the water-side manifold as described in any one of claims 1-7, characterized in that, Includes the following steps: S1. First, initialize the system and obtain the coolant temperature T1 flowing out of the drive motor / electronic control, the coolant temperature T2 entering the power battery liquid cooling plate and the coolant temperature T3 flowing out of the main radiator through the first temperature sensor interface (17), the second temperature sensor interface (18) and the third temperature sensor interface (19), respectively, and send these temperature data to the vehicle controller or thermal management controller. S2. The vehicle controller or thermal management controller compares and analyzes the obtained T1, T2, and T3 with the preset target temperature thresholds for each component to determine the current demand status of each thermal management loop. S3. Based on the analysis results of S2, the vehicle controller or thermal management controller sends control commands to the electronic control valves and water pumps of the corresponding circuits. S4. During the control process, the changes of T1, T2 and T3 are continuously monitored by the first temperature sensor, the second temperature sensor and the third temperature sensor, and the monitoring data is fed back to the vehicle controller or thermal management controller. The vehicle controller or thermal management controller dynamically adjusts the opening degree of the electronic control valve and the speed of the water pump according to the deviation between the feedback temperature and the target temperature.

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