Hybrid vehicle cooling system and hybrid vehicle

Abstract

The utility model discloses a hybrid power vehicle cooling system and a hybrid power vehicle, the hybrid power vehicle cooling system comprises a cooling water tank, the cooling water tank is respectively communicated with an engine water jacket, a motor water jacket and a battery water jacket through a cooling circulation loop; the electric control fan corresponds to the cooling water tank; the temperature sensor group is arranged on the circulating pipeline, and at least three first temperature sensors in the temperature sensor group are in one-to-one correspondence with the engine water jacket, the motor water jacket and the battery water jacket respectively; and the controller is respectively connected with the temperature sensor group and the electric control fan. The system can meet the heat dissipation requirements of all parts in the hybrid power vehicle, a fan does not need to be additionally arranged, and the vehicle cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a cooling system for a hybrid vehicle and a hybrid vehicle. Background Art

[0002] In the related art, new components such as a battery system, an engine, and an electric motor are added to hybrid commercial vehicles. Since different components have different requirements for cooling temperatures, additional fans need to be added for heat dissipation, increasing the vehicle cost. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, an object of the utility model is to provide a cooling system for a hybrid vehicle, which can meet the heat dissipation requirements of various components in the hybrid vehicle and does not require additional fans, saving vehicle costs.

[0004] A second object of the utility model is to provide a hybrid vehicle.

[0005] To solve the above problems, the utility model provides a cooling system for a hybrid vehicle, including: a cooling water tank, the cooling water tank is respectively connected to an engine water jacket, a motor water jacket, and a battery water jacket through a cooling circulation circuit; an electric control fan, the electric control fan corresponds to the cooling water tank; a temperature sensor group, the temperature sensor group is arranged on the circulation pipeline, and at least three of the first temperature sensors in the temperature sensor group respectively correspond to the engine water jacket, the motor water jacket, and the battery water jacket one by one; a controller, respectively connected to the temperature sensor group and the electric control fan.

[0006] According to the cooling system for a hybrid vehicle of the embodiment of the utility model, a cooling water tank, an engine, a motor, and a battery share the same electric control fan, and the controller controls the rotation speed of the electric control fan according to the engine temperature, the motor temperature, and the battery temperature to adjust the temperature of the coolant in the cooling water tank, so as to realize the heat dissipation of the engine, the motor, and / or the battery through the cooling circulation circuit, meet the heat dissipation requirements of various components in the hybrid vehicle, and do not require additional fans, saving vehicle costs.

[0007] In some embodiments, the cooling circulation circuit includes a first circuit, a second circuit, and a third circuit. Among them, the cooling water tank is connected to the engine water jacket through the first circuit, the engine water jacket is connected to the motor water jacket through the second circuit, and the engine water jacket is connected to the battery water jacket through the third circuit.

[0008] In some embodiments, the vehicle cooling system further includes: an air-conditioning condenser corresponding to the electric control fan; a pressure sensor disposed on the air-conditioning condenser and connected to the controller.

[0009] In some embodiments, the cooling circulation loop further includes a fourth loop through which the engine water jacket communicates with the hydrodynamic retarder water jacket, and at least one of the second temperature sensors in the temperature sensor group corresponds to the hydrodynamic retarder water jacket one by one; the second temperature sensor is connected to the controller.

[0010] In some embodiments, the electric control fan is an electric control silicone oil fan, the control end of the electric control silicone oil fan is connected to the controller, and the power supply end of the electric control silicone oil fan is connected to the power battery.

[0011] A second aspect embodiment of the present invention provides a hybrid vehicle including the hybrid vehicle cooling system described in the above embodiments.

[0012] According to the hybrid vehicle of the embodiment of the present invention, a cooling water tank, an engine, a motor, and a battery share the same electric control fan, and the controller controls the rotation speed of the electric control fan according to the engine temperature, the motor temperature, and the battery temperature to adjust the temperature of the coolant in the cooling water tank, so as to realize the heat dissipation of the engine, the motor, and / or the battery through the cooling circulation loop, meet the heat dissipation requirements of each component in the hybrid vehicle, and there is no need to additionally increase a fan, saving the vehicle cost.

[0013] In some embodiments, the controller of the hybrid vehicle cooling system is the vehicle controller of the hybrid vehicle.

[0014] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0015] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0016] Figure 1 is a schematic diagram of a hybrid vehicle cooling system according to an embodiment of the present invention;

[0017] Figure 2 is a structural block diagram of a hybrid vehicle according to an embodiment of the present invention.

[0018] Reference Numerals:

[0019] Hybrid vehicle 1000;

[0020] Hybrid vehicle cooling system 100;

[0021] Cooling circulation circuit 10; Electric control fan 20; Temperature sensor group 30; Controller 40;

[0022] First circuit 11; Second circuit 12; Third circuit 13; Fourth circuit 14; First temperature sensor 31; First temperature sensor 32; First temperature sensor 33; Second temperature sensor 34;

[0023] Cooling water tank 1; Engine 2; Motor 3; Battery 4; Air conditioner condenser 5; Pressure sensor 6; Hydraulic retarder 7. Detailed implementation manners

[0024] Embodiments of the present utility model will be described in detail below. The embodiments described with reference to the drawings are exemplary. Embodiments of the present utility model will be described in detail below.

[0025] To solve the above problems, a hybrid vehicle cooling system is provided in the first aspect embodiment of the present utility model. The hybrid vehicle cooling system according to the embodiments of the present utility model can meet the heat dissipation requirements of various components in the hybrid vehicle and does not require an additional fan, saving vehicle costs.

[0026] Reference will be made below Figure 1 to describe the hybrid vehicle cooling system 100 according to the embodiments of the present utility model. Figure 1 As shown in the block diagram of the hybrid vehicle cooling system according to an embodiment of the present utility model, the hybrid vehicle cooling system 100 includes a cooling circulation circuit 10, an electric control fan 20, a temperature sensor group 30, and a controller 40.

[0027] Among them, the cooling circulation circuit 10 is respectively connected to the engine water jacket, the motor water jacket, and the battery water jacket through the cooling circulation circuit, and is used to circulate the coolant in the cooling water tank 1, the engine water jacket 2, the motor water jacket 3, and the battery water jacket 4; the electric control fan 20 corresponds to the cooling water tank 1 and is used to dissipate heat from the coolant in the cooling water tank 1; the temperature sensor group 30 is arranged on the circulation pipeline, and at least three first temperature sensors in the temperature sensor group 30 respectively correspond to the engine water jacket 2, the motor water jacket 3, and the battery water jacket 4 one by one, and are used to collect the engine temperature, the motor temperature, and the battery temperature.

[0028] Specifically, reference is made to Figure 1As shown, the hybrid vehicle cooling system 100 is provided with a cooling circulation circuit 10 formed between a cooling water tank 1, an engine water jacket, a motor water jacket, and a battery water jacket, so that the coolant in the cooling water tank 1 can circulate between the engine water jacket, the motor water jacket, and the battery water jacket for heat exchange; at the same time, an electronically controlled fan 20 is arranged near the cooling water tank 1, and the coolant in the cooling water tank 1 is dissipated by the rotation of the electronically controlled fan 20; in addition, there are multiple temperature sensor groups 30. Among them, a first temperature sensor 31 is arranged near the engine water jacket and communicatively connected to a controller 40 for collecting the engine temperature and sending it to the controller 40; a first temperature sensor 32 is arranged near the motor water jacket and communicatively connected to the controller 40 for collecting the motor temperature and sending it to the controller 40; a first temperature sensor 33 is arranged near the battery water jacket and communicatively connected to the controller 40 for collecting the battery temperature and sending it to the controller 40.

[0029] In some embodiments, the controller 40 is respectively connected to the temperature sensor group 30 and the electronically controlled fan 20. The controller 40 is further configured to control the electronically controlled fan 20 according to the maximum rotation speed value among the rotation speed values corresponding to each target parameter when it is determined that at least one of the engine temperature, the motor temperature, and / or the battery temperature meets the corresponding rotation speed control condition, and the target parameter is the parameter among the engine temperature, the motor temperature, and the battery temperature that meets the corresponding rotation speed control condition.

[0030] Specifically, based on the above structure, after the engine temperature, the motor temperature, and the battery temperature are collected by the temperature sensor group 30 and transmitted to the controller 40, the controller 40 judges the received engine temperature, motor temperature, and battery temperature. Specifically, each parameter is preset with a corresponding rotation speed control condition. For example, the rotation speed control condition corresponding to the engine temperature is that the engine temperature is greater than or equal to the engine temperature threshold, the rotation speed control condition corresponding to the motor temperature is that the motor temperature is greater than or equal to the motor temperature threshold, and the rotation speed control condition corresponding to the battery temperature is that the battery temperature is greater than or equal to the battery temperature threshold. If at least one of the engine temperature, the motor temperature, and / or the battery temperature meets the corresponding rotation speed control condition, the electronically controlled fan 20 is controlled according to the maximum rotation speed value among the rotation speed values corresponding to each target parameter. Thus, the cooling water tank 1, the engine 2, the motor 3, and the battery 4 share the same electronically controlled fan 20, and the controller 40 controls the rotation speed of the electronically controlled fan 20 according to the engine temperature, the motor temperature, and the battery temperature to adjust the temperature of the coolant in the cooling water tank 1, so as to realize the heat dissipation of the engine, the motor, and / or the battery through the cooling circulation circuit, meet the heat dissipation requirements of each component in the hybrid vehicle, and there is no need to additionally increase a fan, saving the vehicle cost.

[0031] Exemplarily, for each parameter corresponding to the rotational speed control condition, a preset rotational speed is also preset. For example, for the engine temperature, when it is set that the engine temperature meets the rotational speed control condition, the electronic control fan 20 needs to be controlled to operate at the first preset rotational speed; for the motor temperature, when it is set that the motor temperature meets the rotational speed control condition, the electronic control fan 20 needs to be controlled to operate at the second preset rotational speed; for the battery temperature, when it is set that the battery temperature meets the rotational speed control condition, the electronic control fan 20 needs to be controlled to operate at the third preset rotational speed. Based on this, if only any one of the engine temperature, motor temperature, and battery temperature is detected to meet the corresponding rotational speed control condition, the parameter that meets the corresponding control condition is taken as the target parameter, and the electronic control fan 20 is controlled by the preset rotational speed corresponding to this target parameter. For example, when it is detected that the engine temperature is greater than the engine temperature threshold, the motor temperature is less than the motor temperature threshold, and the battery temperature is less than the battery temperature threshold, it indicates that the engine temperature meets its corresponding rotational speed control condition, and the engine temperature is the target parameter. The controller 40 calculates the rotational speed value of the electronic control fan 20 according to the engine temperature control, that is, controls the electronic control fan 20 at the first preset rotational speed to adjust the temperature of the coolant in the cooling water tank 1 under the action of the electronic control fan 20, and then realizes the heat dissipation of the engine through the cooling circulation circuit 10. Or, if any two or three of the engine temperature, motor temperature, and battery temperature are detected to meet the corresponding rotational speed control conditions, all the parameters that meet the corresponding control conditions are taken as the target parameters, and the rotational speed of the electronic control fan 20 is controlled according to the maximum rotational speed value among the rotational speed values corresponding to each target parameter. For example, if it is detected that the engine temperature is greater than the engine temperature threshold, the motor temperature is greater than the motor temperature threshold, and the battery temperature is less than the battery temperature threshold, it indicates that the engine temperature meets its corresponding rotational speed control condition, and at the same time the motor temperature also meets its corresponding rotational speed control condition. The motor temperature and the engine temperature are the target parameters. Then, the first preset rotational speed corresponding to when the engine temperature meets the rotational speed control condition is compared with the second preset rotational speed corresponding to when the motor temperature meets the rotational speed control condition, and the maximum rotational speed value of the two is selected to control the rotational speed of the electronic control fan 20. Thus, by selecting the maximum rotational speed value between the first preset rotational speed and the second preset rotational speed to control the rotational speed of the electronic control fan 20, the heat dissipation of the engine and the motor can be achieved simultaneously. Similarly, for any other two parameters or three parameters that meet the corresponding rotational speed control conditions, the control method is the same as the above process principle and will not be elaborated one by one here.

[0032] In addition, if there is no parameter among the engine temperature, the motor temperature, and / or the battery temperature that satisfies the corresponding rotational speed control condition, that is, if the engine temperature is less than the engine temperature threshold, the motor temperature is less than the motor temperature threshold, and the battery temperature is less than the battery temperature threshold, then the rotational speed of the electronic control fan 20 is not controlled. Thus, the electronic control fan 20 is in a free running mode, that is, at this time, the electronic control fan 20 will operate according to its own inertia and is not controlled by the controller 40.

[0033] Among them, the above rotational speed control condition is only an example, and the rotational speed control condition can be preset according to the actual situation to determine whether the component needs to dissipate heat, and no specific limitation is made here.

[0034] According to the hybrid vehicle cooling system 100 of the embodiment of the present utility model, a cooling water tank 1, an engine 2, a motor 3, and a battery 4 are provided to share the same electronic control fan 20, and the controller 40 controls the rotational speed of the electronic control fan 20 according to the engine temperature, the motor temperature, and the battery temperature to adjust the temperature of the coolant in the cooling water tank 1, so as to realize the heat dissipation of the engine 2, the motor 3, and / or the battery 4 through the cooling circulation circuit, meet the heat dissipation requirements of each component in the hybrid vehicle, and there is no need to additionally increase a fan, saving the vehicle cost.

[0035] In some embodiments, as shown in Figure 1 the cooling circulation circuit 10 includes a first circuit 11, a second circuit 12, and a third circuit 13. Among them, the cooling water tank 1 is connected to the engine water jacket through the first circuit 11, the engine water jacket is connected to the motor water jacket through the second circuit 12, and the engine water jacket is connected to the battery water jacket through the third circuit 13.

[0036] Specifically, the engine 2 is one of the main heat sources in the vehicle. The cooling water tank 1 makes the coolant preferentially enter the engine water jacket through the first circuit 11 to cool the engine 2 and ensure the performance and safety of the vehicle. Then, the second circuit 12 and the third circuit 13 are arranged in parallel. The coolant enters the motor water jacket through the second circuit 12 and enters the battery water jacket through the third circuit 13 to cool the motor 3 and the battery 4. Thus, through the cooling circulation circuit 10, the heat dissipation control of the engine 2, the motor 3, and the battery 4 is realized.

[0037] In some embodiments, as shown in Figure 1 the hybrid vehicle cooling system 100 further includes an air conditioner condenser 5 and a pressure sensor 6.

[0038] Among them, the air conditioner condenser 5 corresponds to the electronic control fan 20. The air conditioner condenser 5 is located on one side of the first circuit 11. The pressure sensor 6 is arranged on the air conditioner condenser 5 and is connected to the controller 40. The pressure sensor 6 is used to detect the pressure value of the air conditioner condenser 5.

[0039] Specifically, when the pressure value of the air conditioner condenser 5 is too high, the heat dissipation efficiency of the air conditioner condenser 5 will decrease, thereby affecting the refrigeration performance of the air conditioner. A pressure sensor 6 is provided to detect the pressure value of the air conditioner condenser 5. When the pressure value meets the corresponding rotational speed control condition, such as when the pressure value is greater than or equal to the preset pressure threshold, it can be considered that the pressure value of the air conditioner condenser 5 is too high at this time. The controller can control the electric control fan 20 to increase its rotational speed to enhance heat dissipation. Thus, the air conditioner condenser 5 can reduce the pressure value, avoiding the problem that the air conditioner refrigeration effect is reduced due to too high pressure of the air conditioner condenser.

[0040] In some embodiments, the controller 40 is further configured to control the electric control fan 20 at a preset rotational speed value when it determines that the pressure value meets the corresponding rotational speed control condition while the vehicle is in the idle parking mode; or, when the vehicle is in the engine direct drive mode, the controller 40 is further configured to control the electric control fan 20 according to the maximum rotational speed value among the rotational speed values corresponding to each target parameter when it determines that at least one of the pressure value, the engine temperature, the motor temperature, and the battery temperature meets the corresponding rotational speed control condition, where the target parameter is the parameter among the pressure value, the engine temperature, the motor temperature, and the battery temperature that meets the corresponding rotational speed control condition; or, when the vehicle is in the motor direct drive mode, the controller 40 is further configured to control the electric control fan 20 according to the maximum rotational speed value among the rotational speed values corresponding to each target parameter when it determines that at least one of the pressure value, the motor temperature, and the battery temperature meets the corresponding rotational speed control condition, where the target parameter is the parameter among the pressure value, the motor temperature, and the battery temperature that meets the corresponding rotational speed control condition.

[0041] Specifically, the vehicle has multiple working modes, and the rotational speed control conditions for the pressure value, the engine temperature, the motor temperature, and the battery temperature are different in different working modes. The controller 40 controls the rotational speed of the electric control fan 20 according to different working modes.

[0042] Exemplarily, when the vehicle is in the idle parking mode, the engine 2 and the motor 3 operate at low power or do not operate, generating less heat. To avoid the vehicle being unable to refrigerate due to too high pressure of the air conditioner condenser, the pressure sensor 6 detects the pressure value of the air conditioner condenser 5 and sends it to the controller 40. The controller 40 judges the received pressure value. If the pressure value exceeds the preset pressure threshold, that is, the pressure value meets the rotational speed control condition, the controller 40 controls the electric control fan 20 to work at the preset rotational speed value to enhance heat dissipation, thereby reducing the pressure value of the air conditioner condenser 5; if the pressure value does not exceed the preset pressure threshold, that is, the pressure value does not meet the rotational speed control condition, the electric control fan 20 rotates freely, that is, the rotational speed of the electric control fan 20 is not controlled, and the electric control fan 20 is in the free rotation mode.

[0043] When the vehicle is in the engine direct drive mode, the engine 2 directly provides power for the vehicle to run, and the motor 3 does not work or operates following the engine. At this time, the engine 2 generates a large amount of heat. To avoid overheating of the engine 2, the temperature sensor group 30 collects the engine temperature, motor temperature, and battery temperature and sends them to the controller. The pressure sensor 6 detects the pressure value of the air conditioner condenser 5 and sends it to the controller 40. The controller 40 judges the received pressure value, engine temperature, motor temperature, and battery temperature. If at least one meets the corresponding speed control condition, that is, if one of the parameters of the pressure value, engine temperature, motor temperature, and battery temperature meets the corresponding speed control condition, then the fan is controlled according to the speed value corresponding to this parameter; when two or more parameters meet the corresponding speed control conditions, then the maximum value is taken from the preset speed values corresponding to all parameters, and the fan is controlled with the maximum speed value among them. For example, if it is detected that the pressure value is greater than the pressure threshold, the engine temperature is greater than the engine temperature threshold, the motor temperature is less than the motor temperature threshold, and the battery temperature is less than the battery temperature threshold, then the target parameters are the engine temperature and the pressure value. At this time, the speed of the electric control fan 20 is controlled according to the maximum speed value among the preset speed value and the first preset speed; on the contrary, if none of the parameters of the pressure value, engine temperature, motor temperature, and battery temperature meet the corresponding speed control conditions, that is, the pressure value is less than the pressure threshold, the engine temperature is less than the engine temperature threshold, the motor temperature is less than the motor temperature threshold, and the battery temperature is less than the battery temperature threshold, then the speed of the electric control fan 20 is not controlled. Thus, the electric control fan 20 is in the free running mode, that is, at this time, the electric control fan 20 will work according to its own inertia situation and is not controlled by the controller 40.

[0044] The vehicle is in the direct drive mode of the motor. At this time, the engine 2 is in the off state or the idle running mode, generating less heat. To avoid overheating of the motor 3 and the battery 4, the temperature sensor group 30 collects the motor temperature and the battery temperature and sends them to the controller 40. The pressure sensor 6 detects the pressure value of the air conditioner condenser 5 and sends it to the controller 40. The controller 40 judges the received pressure value, motor temperature and battery temperature. If at least one of them meets the corresponding speed control conditions. For example, if it is detected that the pressure value is less than the pressure threshold, the motor temperature is greater than the motor temperature threshold, and the battery temperature is greater than the battery temperature threshold, the target parameters are the motor temperature and the battery temperature. At this time, the speed of the electric control fan 20 is controlled according to the maximum speed value of the speed value corresponding to the motor temperature, that is, the second preset speed, and the speed value corresponding to the battery temperature, that is, the third preset speed. On the contrary, if there are no parameters among the pressure value, motor temperature and battery temperature that meet the corresponding speed control conditions, that is, the pressure value is less than the pressure threshold, the motor temperature is less than the motor temperature threshold, and the battery temperature is less than the battery temperature threshold, the speed of the electric control fan 20 is not controlled. Thus, the electric control fan 20 is in the free running mode. That is to say, at this time, the electric control fan 20 will work according to its own inertia and is not controlled by the controller 40.

[0045] Among them, the controller 40 can control the electric control fan 20 through CAN communication.

[0046] In some embodiments, as shown in Figure 1 the hybrid vehicle cooling system 100 further includes a hydraulic retarder 7, and the cooling circulation circuit 10 further includes a fourth circuit 14.

[0047] Among them, the engine water jacket is connected to the hydraulic retarder water jacket through the fourth circuit 14. The fourth circuit 14 is connected to the second end of the first circuit 11. That is, the second circuit 12, the third circuit 13 and the fourth circuit 14 are in parallel with each other. There is at least one second temperature sensor in the temperature sensor group 30 that corresponds to the hydraulic retarder water jacket one by one. The second temperature sensor 34 is arranged near the hydraulic retarder 7 and is communicatively connected to the controller 40 for collecting the hydraulic retarder temperature and sending it to the controller 40.

[0048] Specifically, the hydraulic retarder 7 can be used as an auxiliary braking system of the vehicle. When the vehicle brakes frequently, it can avoid overheating of the brakes. Therefore, the hydraulic retarder 7 will generate a large amount of heat during operation and also needs to be cooled in time.

[0049] In some embodiments, the controller 40 is further configured to, when the vehicle is in the energy recovery mode, determine that at least one of the pressure value of the air conditioner condenser 6, the temperature of the hydraulic retarder, the temperature of the motor, and the temperature of the battery satisfies the corresponding speed control condition, and then control the electric control fan 20 according to the maximum speed value among the speed values corresponding to each target parameter, where the target parameter is the parameter among the pressure value of the air conditioner condenser 6, the temperature of the hydraulic retarder, the temperature of the motor, and the temperature of the battery that satisfies the corresponding speed control condition.

[0050] Exemplarily, the speed control condition corresponding to the temperature of the hydraulic retarder is that the temperature of the hydraulic retarder is greater than or equal to the temperature threshold of the hydraulic retarder; for the temperature of the hydraulic retarder, it is set that when the temperature of the hydraulic retarder satisfies the speed control condition, the fan needs to be controlled to operate at the fourth preset speed. When the vehicle is in the energy recovery mode, the motor 3 is in the power generation state and the engine 2 is in the braking state. At this time, the hydraulic retarder 7 is in the working state and will generate a large amount of heat. The temperature sensor group 30 collects the temperature of the hydraulic retarder, the temperature of the motor, and the temperature of the battery and sends them to the controller. The pressure sensor 6 detects the pressure value of the air conditioner condenser 5 and sends it to the controller 40. The controller 40 judges the received pressure value, the temperature of the hydraulic retarder, the temperature of the motor, and the temperature of the battery. If at least one satisfies the corresponding speed control condition, for example, if it is detected that the pressure value is greater than the pressure threshold, the temperature of the hydraulic retarder is greater than the temperature threshold of the hydraulic retarder, the temperature of the motor is less than the temperature threshold of the motor, and the temperature of the battery is less than the temperature threshold of the battery, then the target parameters are the pressure value and the temperature of the hydraulic retarder. At this time, the speed of the electric control fan 20 is controlled according to the maximum speed value among the preset speed value and the fourth preset speed; conversely, if there is no parameter among the pressure value, the temperature of the hydraulic retarder, the temperature of the motor, and the temperature of the battery that satisfies the corresponding speed control condition, that is, the pressure value is less than the pressure threshold, the temperature of the hydraulic retarder is less than the temperature threshold of the hydraulic retarder, the temperature of the motor is less than the temperature threshold of the motor, and the temperature of the battery is less than the temperature threshold of the battery, then the speed of the electric control fan 20 is not controlled. Thus, the electric control fan 20 is in the free running mode, that is to say, at this time, the electric control fan 20 will operate according to its own inertia situation and is not controlled by the controller 40.

[0051] In some embodiments, the electric control fan 20 is an electric control silicone oil fan. The control end of the electric control silicone oil fan is connected to the controller 40, and the power supply end of the electric control silicone oil fan is connected to the power battery.

[0052] Specifically, by controlling the rotational speed of the electronically controlled silicone oil fan through the controller 40, it is possible to ensure that each component in the hybrid vehicle dissipates heat when cooling is required, avoid a decline in the performance of the hybrid vehicle due to insufficient cooling of the heat-generating components, and ensure the cruising range. Thus, in this application, by arranging the water tank 1, the engine 2, the motor 3, and the battery 4 to share the same electronically controlled silicone oil fan, on the one hand, it is not necessary to additionally add a fan, saving costs, and on the other hand, the electronically controlled silicone oil fan can be precisely controlled according to different working conditions, enabling the temperature control of each component, avoiding the situation where a certain component is not cooled according to the temperature requirements of each component and the battery is heated instead when cooling is required, reducing the waste of vehicle energy and affecting the cruising range of the vehicle. At the same time, it avoids the problems that the performance and safety of the vehicle are affected due to the unsatisfactory cooling of each heat-generating component of the vehicle.

[0053] A second aspect embodiment of the present utility model provides a hybrid vehicle 1000, referring to Figure 2 As shown, the hybrid vehicle 1000 includes a hybrid vehicle cooling system 100.

[0054] For the hybrid vehicle 1000 according to the embodiment of the present utility model, a cooling water tank 1, an engine 2, a motor 3, and a battery 4 are arranged to share the same electronically controlled fan 20, and the controller 40 controls the rotational speed of the electronically controlled fan 20 according to the engine temperature, the motor temperature, and the battery temperature to adjust the temperature of the coolant in the cooling water tank 1, thereby realizing the heat dissipation of the engine 2, the motor 3, and / or the battery 4 through the cooling circulation circuit, meeting the heat dissipation requirements of each component in the hybrid vehicle, and without the need to additionally add a fan, saving vehicle costs.

[0055] In some embodiments, the controller 40 of the hybrid vehicle cooling system 100 is the vehicle controller of the hybrid vehicle 1000.

[0056] Specifically, the vehicle controller controls the electronically controlled silicone oil fan, which is convenient for directly controlling the temperature of each component of the whole vehicle, without the need to additionally add other fans, and can reduce costs.

[0057] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0058] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hybrid vehicle cooling system, characterized in that: include: A cooling water tank, wherein the cooling water tank is connected to the engine water jacket, the motor water jacket and the battery water jacket through a cooling circulation loop; An electrically controlled fan, the electrically controlled fan corresponding to the cooling water tank; A temperature sensor group, wherein the temperature sensor group is arranged on the cooling circulation loop, and the temperature sensor group includes at least three first temperature sensors corresponding to the engine water jacket, the motor water jacket and the battery water jacket respectively; A controller is connected to the temperature sensor group and the electric-controlled fan respectively.

2. The hybrid vehicle cooling system according to claim 1, characterized in that: The cooling circulation loop includes a first loop, a second loop and a third loop, wherein the cooling water tank is connected to the engine water jacket through the first loop, the engine water jacket is connected to the motor water jacket through the second loop, and the engine water jacket is connected to the battery water jacket through the third loop.

3. The hybrid vehicle cooling system according to claim 2, characterized in that: The vehicle cooling system further comprises: An air-conditioning condenser, the air-conditioning condenser corresponds to the electrically controlled fan; A pressure sensor is arranged on the air-conditioning condenser and connected to the controller.

4. The hybrid vehicle cooling system according to claim 2, characterized in that: The cooling circulation loop further includes a fourth loop, the engine water jacket is connected to the hydraulic retarder water jacket through the fourth loop, and at least one second temperature sensor in the temperature sensor group corresponds to the hydraulic retarder water jacket one-to-one; The second temperature sensor is connected to the controller.

5. The hybrid vehicle cooling system according to any one of claims 1 to 4, characterized in that: The electrically controlled fan is an electrically controlled silicone oil fan, a control end of the electrically controlled silicone oil fan is connected to the controller, and a power end of the electrically controlled silicone oil fan is connected to a power battery.

6. A hybrid vehicle, characterized in that: A hybrid vehicle cooling system comprising the cooling system of any one of claims 1-5.

7. The hybrid vehicle according to claim 6, characterized in that: The controller of the hybrid vehicle cooling system is a whole vehicle controller of the hybrid vehicle.

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