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CN-116733589-B - Radiator fan of hybrid electric vehicle, control method of radiator fan, electronic equipment and vehicle

CN116733589BCN 116733589 BCN116733589 BCN 116733589BCN-116733589-B

Abstract

The invention relates to a cooling fan of a hybrid electric vehicle, a control method thereof, electronic equipment and a vehicle, wherein the cooling fan comprises fan blades, a rotating shaft, a motor, a rotor and a stator, wherein the rotating shaft is connected to the center positions of the fan blades to drive the fan blades to rotate, the motor comprises a shell, the rotor and the stator, the stator is fixed inside the shell, the rotor is rotatably arranged in the shell, the end part of the rotor extends out of the shell, the rotor is coaxially connected with the rotating shaft, and a driving wheel is used for being in transmission connection with the output end of an engine, is rotatably sleeved on the outer side of the shell and is selectively connected with the rotating shaft through a clutch. When the fan is used, the fan can be driven to rotate independently through the driving wheel, when the driving wheel does not work, the fan can be driven to rotate through the motor, the fan can be shared under different driving modes of the vehicle, the vehicle does not need to be provided with two fans independently to be suitable for different driving modes, the arrangement space is saved, and the mutual influence of two sets of heat dissipation systems on a heat dissipation flow field can be avoided.

Inventors

  • LI GUOQING
  • HOU WEIJUAN
  • SUN DONGLIANG
  • LI ZHIWEI

Assignees

  • 北汽福田汽车股份有限公司

Dates

Publication Date
20260508
Application Date
20220301

Claims (13)

  1. 1. A radiator fan of a hybrid vehicle, comprising: A fan blade (10); the rotating shaft (20) is connected to the center of the fan blade (10) to drive the fan blade (10) to rotate; an electric motor (30) comprising a housing (31), a rotor (32) and a stator (33), the stator (33) being fixed inside the housing (31), the rotor (32) being rotatably arranged in the housing (31) with its end projecting out of the housing (31), the rotor (32) being coaxially connected with the rotary shaft (20), and A driving wheel (40) for driving connection to an output end of the engine, the driving wheel (40) being rotatably sleeved outside the housing (31) and selectively engaged with the rotating shaft (20) through a clutch (50), The rotating shaft (20) comprises a shaft part (21) and a first flange part (22) protruding outwards in the radial direction, the clutch (50) comprises a sleeve part (51) and a second flange part (52) protruding outwards in the radial direction, the shaft part (21) and the rotor (32) respectively extend into the sleeve part (51) and are fixedly connected through a coaxial connector (60), the first flange part (22) and the second flange part (52) are fixedly connected, and the driving wheel (40) is selectively engaged with the sleeve part (51).
  2. 2. Radiator fan according to claim 1, wherein the coaxial connector (60) comprises a first half (61) fixed to the rotor (32) and a second half (62) fixed to the shaft (21), the interior of the sleeve (51) being provided with a blocking wall (511) with a through hole, the first half (61) and the second half (62) being abutted against both sides of the blocking wall (511) and fixedly connected through the through hole.
  3. 3. The cooling fan according to claim 1, characterized in that the clutch (50) is an electromagnetic clutch, a pressure plate (512) is formed on a side of the sleeve portion (51) close to the driving wheel (40), the clutch (50) further comprises a coil plate (53), and the coil plate (53) is arranged on a side of the driving wheel (40) away from the pressure plate (512) so that the coil plate (53) can attract the pressure plate (512) and press the driving wheel (40) when being electrified.
  4. 4. A radiator fan according to claim 3, characterized in that a recess is provided in the side of the drive wheel (40) facing away from the pressure plate (512), the coil disc (53) being fixedly connected to the housing (31) and being accommodated in the recess.
  5. 5. The cooling fan according to any one of claims 1 to 4, wherein an end face of the housing (31) close to the fan blade (10) has a protruding neck (311), the rotor (32) penetrates out of the neck (311), and the driving wheel (40) is sleeved outside the neck (311).
  6. 6. A control method of a radiator fan according to any one of claims 1 to 5, characterized in that the method includes: Judging whether the cooling fan needs to run or not; Judging whether the engine is started or not; When the cooling fan needs to be operated, if the engine is started, controlling the clutch (50) to be closed; When the cooling fan needs to be operated, if the engine is not started, the rotor (32) is controlled to drive the rotating shaft (20) to rotate.
  7. 7. The control method according to claim 6, wherein the step of determining whether the cooling fan needs to be operated includes: When the engine is started, acquiring the water temperature of the engine; and when the water temperature is greater than or equal to a first temperature threshold value, determining that the cooling fan needs to operate.
  8. 8. The control method according to claim 7, characterized in that the clutch (50) is controlled to be opened when the water temperature decreases from above the first temperature threshold to less than or equal to a second temperature threshold.
  9. 9. The control method according to claim 6, wherein the air conditioning system of the hybrid vehicle has a pressure switch for detecting a refrigerant pressure, and the step of controlling the rotor (32) to rotate the rotating shaft (20) includes: Controlling the rotor (32) to operate at a nominal rotational speed when the refrigerant pressure is greater than a first pressure threshold; Controlling the rotor (32) to operate at a preset ratio of the rated rotational speed when the refrigerant pressure is less than or equal to the first pressure threshold, wherein the preset ratio is less than 1, Or alternatively The air conditioning system of the hybrid electric vehicle is provided with a pressure sensor for detecting the pressure of the refrigerant, and the step of controlling the rotor (32) to drive the rotating shaft (20) to rotate comprises the following steps: Controlling the rotor (32) to operate at a linear speed positively correlated between a preset rotational speed and a rated rotational speed in response to a change in the refrigerant pressure when the refrigerant pressure is greater than or equal to a second pressure threshold and less than or equal to a third pressure threshold; And controlling the rotor (32) to stop operation when the refrigerant pressure is smaller than the second pressure threshold.
  10. 10. The control method according to claim 9, wherein the hybrid vehicle includes an alarm device, and the step of controlling the rotor (32) to rotate the rotating shaft (20) further includes: Controlling the rotor (32) to operate at the rated rotational speed when the refrigerant pressure is greater than the third pressure threshold and less than or equal to a fourth pressure threshold; and when the pressure of the refrigerant is larger than the fourth pressure threshold value, controlling the alarm device to send an alarm signal.
  11. 11. The control method according to claim 6, wherein the motor (30) is a start-up power generation integrated machine, the method further comprising: and in the step of controlling the clutch (50) to be attracted, the rotating shaft (20) is controlled to drive the rotor (32) to rotate so as to match with the coil of the stator (33) to generate electricity.
  12. 12. An electronic device, comprising: a memory storing a computer program, and A processor for executing the computer program in the memory to implement the steps of the method of any one of claims 6-11.
  13. 13. A vehicle comprising the electronic device of claim 12.

Description

Radiator fan of hybrid electric vehicle, control method of radiator fan, electronic equipment and vehicle Technical Field The disclosure relates to the field of vehicles, and in particular relates to a cooling fan of a hybrid electric vehicle, a control method of the cooling fan, electronic equipment and a vehicle. Background Hybrid vehicles are vehicles in which the vehicle drive system is composed of a combination of two or more individual drive systems that can be operated simultaneously, the driving power of the vehicle being provided individually or jointly by the individual drive systems depending on the actual driving state of the vehicle. When the engine of the hybrid electric vehicle works, the air conditioner and the heat dissipation system are cooled by adopting a silicone oil fan, and when the pure electric vehicle runs, an independent electronic fan is added for heat dissipation. Two sets of heat dissipation systems exist simultaneously, the whole vehicle is complex in arrangement, the arrangement space is occupied, and the two sets of heat dissipation systems influence the heat dissipation flow field mutually. Disclosure of Invention An object of the present disclosure is to provide a radiator fan of a hybrid vehicle, a control method thereof, an electronic device, and a vehicle, which solve at least partially the problems existing in the related art. In order to achieve the above purpose, the disclosure provides a cooling fan of a hybrid electric vehicle, which comprises a fan blade, a rotating shaft connected to the center of the fan blade to drive the fan blade to rotate, a motor, comprising a shell, a rotor and a stator, wherein the stator is fixed inside the shell, the rotor is rotatably arranged in the shell, the end part of the rotor extends out of the shell, the rotor is coaxially connected with the rotating shaft, and a driving wheel is used for being in transmission connection with an output end of an engine, and the driving wheel is rotatably sleeved on the outer side of the shell and is selectively connected with the rotating shaft through a clutch. Optionally, the rotating shaft includes a shaft portion and a first flange portion protruding radially outward, the clutch includes a sleeve portion and a second flange portion protruding radially outward, the shaft portion and the rotor respectively extend into the sleeve portion and are fixedly connected by a coaxial connector, the first flange portion and the second flange portion are fixedly connected, and the driving wheel is selectively engaged with the sleeve portion. Optionally, the coaxial connector includes a first half fixed on the rotor and a second half fixed on the shaft, a grid retaining wall with a through hole is arranged in the sleeve part, and the first half and the second half are propped against two sides of the grid retaining wall and pass through the through hole to be fixedly connected. Optionally, the clutch is an electromagnetic clutch, a pressure plate is formed on one side, close to the driving wheel, of the sleeve portion, the clutch further comprises a coil disc, the coil disc is arranged on one side, away from the pressure plate, of the driving wheel, so that the coil disc can attract the pressure plate and compress the driving wheel when being electrified, preferably, a groove is formed on one side, away from the pressure plate, of the driving wheel, and the coil disc is fixedly connected with the shell and is contained in the groove. Optionally, the end face of the casing, which is close to the fan blade, is provided with a protruding neck, the rotor penetrates out of the neck, and the driving wheel is sleeved on the outer side of the neck. According to a second aspect of the present disclosure, there is provided a control method of the above cooling fan, including determining whether the cooling fan needs to be operated, determining whether the engine is started, controlling the clutch to be engaged if the engine is started when the cooling fan needs to be operated, and controlling the rotor to drive the rotating shaft to rotate if the engine is not started when the cooling fan needs to be operated. Optionally, the step of judging whether the cooling fan needs to be operated comprises the steps of acquiring the water temperature of the engine when the engine is started, determining that the cooling fan needs to be operated when the water temperature is greater than or equal to a first temperature threshold value, and preferably controlling the clutch to be disconnected when the water temperature is reduced from being higher than the first temperature threshold value to being smaller than or equal to a second temperature threshold value. Optionally, the air conditioning system of the hybrid electric vehicle is provided with a pressure switch for detecting the pressure of the refrigerant, and the step of controlling the rotor to drive the rotating shaft to rotate comprises controlling the rotor to operate