CN110843505A - Heat dissipation system of wheel hub motor vehicle and control method thereof - Google Patents
Heat dissipation system of wheel hub motor vehicle and control method thereof Download PDFInfo
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- CN110843505A CN110843505A CN201911111007.XA CN201911111007A CN110843505A CN 110843505 A CN110843505 A CN 110843505A CN 201911111007 A CN201911111007 A CN 201911111007A CN 110843505 A CN110843505 A CN 110843505A
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 claims abstract description 70
- 239000000110 cooling liquid Substances 0.000 claims abstract description 62
- 238000001816 cooling Methods 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims description 72
- 239000002826 coolant Substances 0.000 claims description 31
- 230000007246 mechanism Effects 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
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- Combustion & Propulsion (AREA)
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Abstract
The invention relates to a heat dissipation system of a wheel hub motor vehicle, which comprises a vehicle frame, a plurality of wheel hub motors, a circulating pump and a cooling liquid tank, wherein the cooling liquid tank and the circulating pump are fixed on the vehicle frame, a temperature sensor is arranged in each wheel hub motor, the inlet of the circulating pump is communicated with the outlets of cooling pipes of all the wheel hub motors through a pipeline, the outlet of the circulating pump is communicated with the inlet of the cooling liquid tank through a pipeline, the outlet of the cooling liquid tank is communicated with the inlets of the cooling pipes of all the wheel hub motors through a pipeline, and an electric control one-way regulating valve is arranged on the pipeline communicated with the inlet of the cooling pipe of each wheel hub motor. The invention also discloses a control method of the heat dissipation system of the wheel hub motor vehicle. The invention has the advantages that: not only can carry out effectual heat dissipation cooling to all in-wheel motor of vehicle, can make the temperature of all in-wheel motor of vehicle tend to unanimity moreover to effectively guarantee the nature controlled and the security of traveling of vehicle.
Description
Technical Field
The invention relates to the field of vehicle power devices, in particular to a heat dissipation system of a wheel hub motor vehicle and a control method thereof.
Background
With the development of new energy electric vehicles and hybrid technologies, compact and efficient in-wheel motor driving modes are gradually favored, and the pursuit of the extremely dynamic performance of the vehicle leads to the increasing of the power of the in-wheel motor, so that a large amount of heat generated by the motor can be correspondingly increased (3% -5% of the total power), if the large amount of heat cannot be effectively discharged in time, the heat in the motor can be accumulated to generate high temperature, the over-high temperature in the in-wheel motor can cause the insulation of a coil to be damaged, the permanent magnet can be irreversibly demagnetized and the like, the service life of the wheel rail motor can be greatly reduced, the safety of the vehicle is affected, the temperature in the in-wheel motor must be controlled within the range allowed by the motor, but the in-wheel motor is directly assembled on a wheel and is limited by the assembling space, the volume of the in-wheel motor cannot be increased randomly, and the two sides of a hub shell need to be, heat dissipation by means of heat dissipation from the surface of the housing alone and by means of natural wind is very limited. Moreover, when the four wheels of the vehicle all adopt the in-wheel motors, the temperatures of the in-wheel motors are often different in the driving process of the vehicle, and the performance states of the four wheels are different, so that the controllability and the driving safety of the vehicle are affected.
Disclosure of Invention
The invention aims to solve one technical problem of providing a heat dissipation system of an in-wheel motor vehicle, which not only can effectively dissipate heat and cool all in-wheel motors of the vehicle, but also can enable the temperatures of all in-wheel motors of the vehicle to be consistent, thereby effectively ensuring the controllability and the driving safety of the vehicle.
In order to solve the technical problem, the invention provides a heat dissipation system of an in-wheel motor vehicle, which has the following structure: the device comprises a vehicle frame, a plurality of hub motors with cooling pipes, a circulating pump, a cooling liquid tank, a power supply and a controller, wherein the plurality of hub motors are respectively arranged on each wheel of the vehicle, the cooling liquid tank, the circulating pump, the power supply and the controller are all fixed on the vehicle frame, a temperature sensor is arranged in each hub motor, the inlet of the circulating pump is communicated with the outlets of the cooling pipes of all the hub motors through pipelines, the outlet of the circulating pump is communicated with the inlet of the cooling liquid tank through a pipeline, the outlet of the cooling liquid tank is communicated with the inlets of the cooling pipes of all the hub motors through a pipeline, and an electric control one-way regulating valve is arranged on a pipeline communicated with the cooling pipe inlet of each hub motor, the circulating pump, all the hub motors and all the temperature sensors are electrically connected with the controller, and the circulating pump, all the hub motors and the controller are electrically connected with the power supply.
After adopting the structure, compared with the prior art, the heat dissipation system of the wheel hub motor vehicle has the following advantages: the controller can adjust the opening of each electronic control one-way regulating valve according to the internal temperature of each in-wheel motor, so that the aim of radiating and cooling each in-wheel motor to different degrees is fulfilled by controlling the flow of the cooling liquid flowing into each in-wheel motor, the temperature of all in-wheel motors of the vehicle tends to be consistent, and finally the controllability and the driving safety of the vehicle can be effectively guaranteed.
The invention relates to a heat dissipation system of an in-wheel motor vehicle, wherein two circulating pumps are respectively a first circulating pump and a second circulating pump, an inlet of the first circulating pump is communicated with outlets of cooling pipes of all in-wheel motors positioned on the left side of a frame through a pipeline, an outlet of the first circulating pump is communicated with an inlet of a cooling liquid tank through a pipeline, an inlet of the second circulating pump is communicated with outlets of the cooling pipes of all in-wheel motors positioned on the right side of the frame through a pipeline, and an outlet of the second circulating pump is communicated with an inlet of the cooling liquid tank through a pipeline.
Above-mentioned structure not only can be convenient for greatly coolant liquid circulation pipeline's overall arrangement to make things convenient for wheel hub motor vehicle's cooling system's installation greatly, can the effective control coolant liquid flow of first circulating pump and second circulating pump of flowing through moreover, make the volume of first circulating pump and second circulating pump can be littleer, thereby the installation of the first circulating pump of being convenient for and second circulating pump is fixed.
The invention relates to a heat dissipation system of an in-wheel motor vehicle, wherein a first liquid inlet is formed in the left side of a cooling liquid tank, a second liquid inlet is formed in the right side of the cooling liquid tank, an outlet of a first circulating pump is communicated with the first liquid inlet through a pipeline, and an outlet of a second circulating pump is communicated with the second liquid inlet through a pipeline.
The structure can greatly facilitate the layout of the cooling liquid circulation pipeline, thereby further facilitating the installation of the heat dissipation system of the wheel hub motor vehicle.
The invention relates to a heat dissipation system of an in-wheel motor vehicle, wherein a first liquid outlet is formed in the front side of a cooling liquid tank, a second liquid outlet is formed in the rear side of the cooling liquid tank, the first liquid outlet is communicated with cooling pipe inlets of all in-wheel motors on a front wheel of the vehicle through pipelines, and the second liquid outlet is communicated with cooling pipe inlets of all in-wheel motors on a rear wheel of the vehicle through pipelines.
The structure can greatly facilitate the layout of the cooling liquid circulation pipeline, thereby further facilitating the installation of the heat dissipation system of the wheel hub motor vehicle.
The invention relates to a heat dissipation system of an in-wheel motor vehicle, wherein the inner peripheral wall of a cooling liquid tank is circular, a rotating shaft and an impeller are arranged in an inner cavity of the cooling liquid tank, the rotating shaft is arranged along the axis of the inner cavity of the cooling liquid tank and is rotatably connected with the cooling liquid tank, the impeller is connected to the rotating shaft, four blades are uniformly distributed on the impeller in the circumferential direction, the inner cavity of the cooling liquid tank is divided into four parts which are not communicated by the four blades, an inner edge type ratchet wheel is arranged on the inner peripheral wall of the cooling liquid tank, a pawl mechanism matched with the ratchet wheel is arranged on the outer end of each blade, one end of the rotating shaft penetrates through one end of the cooling liquid tank to extend out of the cooling liquid tank, one end of the rotating shaft extending out of the cooling liquid tank is connected with a cooling fan blade, and a first liquid inlet, a second liquid outlet, a second liquid inlet and a.
The structure can push the impeller to rotate by utilizing the circulating flow of the cooling liquid, so that the fan blades are driven to rotate through the rotating shaft, the purpose of stirring the cooling liquid in the cooling liquid tank and the air outside the cooling liquid tank is further achieved, and finally the cooling liquid in the cooling liquid tank and the cooling liquid in the cooling liquid tank can be more effectively radiated on the premise of not using additional electric energy, so that the dependence degree of the radiating system of the hub motor vehicle on the electric energy is effectively reduced, and the hub motor vehicle is more energy-saving.
The invention relates to a heat dissipation system of an in-wheel motor vehicle, wherein an outlet of a first liquid inlet, an inlet of a second liquid outlet, an outlet of the second liquid inlet and an inlet of the first liquid outlet are respectively formed in a radial side wall of one ratchet of a ratchet wheel.
Above-mentioned structure can make the coolant liquid that enters into in the coolant liquid tank inner chamber from first inlet and second inlet strike on the blade openly to make the impeller can receive bigger thrust, and then make it can be rotatory more fast, finally reach the purpose of the coolant liquid of quick stirring coolant liquid incasement and the outside air of coolant liquid case, make the coolant liquid radiating effect better to coolant liquid case and its inside coolant liquid.
The invention relates to a heat radiation system of a hub motor vehicle, wherein a pawl mechanism comprises a sliding block and at least one spring, a radial sliding groove is arranged at the outer end of a blade, the sliding block is slidably arranged in the sliding groove, and the spring is tightly pressed between the bottom of the sliding groove and one end of the sliding block, so that the other end of the sliding block is abutted against a ratchet wheel.
The pawl mechanism with the structure has the advantages of simple structure, convenience in manufacturing and good isolation effect.
The invention relates to a heat dissipation system of a hub motor vehicle, wherein each pawl mechanism is provided with two springs which are distributed in a radial sliding groove at intervals up and down.
The structure can ensure that the sliding of the sliding block is smoother and more stable.
Another technical problem to be solved by the present invention is to provide a method for controlling the heat dissipation system of the in-wheel motor vehicle, so that the heat dissipation system of the in-wheel motor vehicle can not only effectively dissipate heat and cool all in-wheel motors of the vehicle, but also make the temperatures of all in-wheel motors of the vehicle tend to be consistent, thereby effectively ensuring the controllability and driving safety of the vehicle.
In order to solve the technical problem, the invention provides a control method of a heat dissipation system of an in-wheel motor vehicle with the following structure: the method comprises the following steps:
in the running process of the vehicle, the first circulating pump and the second circulating pump are kept in a running state;
acquiring the internal temperature of each hub motor through a temperature sensor;
the controller adjusts the opening of each electric control one-way regulating valve and the rotating speed of the first circulating pump and the second circulating pump according to the internal temperature of each hub motor, so that the internal temperatures of all the hub motors tend to be consistent.
The invention relates to a control method of a heat radiation system of an in-wheel motor vehicle, wherein a concrete adjusting mode that a controller adjusts the opening of each electric control one-way adjusting valve and the rotating speeds of a first circulating pump and a second circulating pump according to the internal temperature of each in-wheel motor is as follows:
setting a reference temperature, comparing the measured internal temperature of each hub motor with the reference temperature,
if the internal temperatures of all the hub motors positioned on the left side of the vehicle are higher than the reference temperature, increasing the rotating speed of the first circulating pump, simultaneously increasing the opening of the electric control one-way regulating valve corresponding to each hub motor positioned on the left side of the vehicle, and ensuring that the opening of the electric control one-way regulating valve corresponding to the hub motor with higher temperature is larger than the opening of the electric control one-way regulating valve corresponding to the hub motor with lower temperature in any two hub motors positioned on the left side of the vehicle;
if the internal temperatures of all the hub motors positioned on the left side of the vehicle are lower than the reference temperature, the rotating speed of the first circulating pump is reduced, meanwhile, the opening degrees of the electric control one-way regulating valves corresponding to all the hub motors positioned on the left side of the vehicle are reduced, and the opening degrees of the electric control one-way regulating valves corresponding to the hub motors with higher temperature are larger than the opening degrees of the electric control one-way regulating valves corresponding to the hub motors with lower temperature in any two hub motors positioned on the left side of the vehicle;
if the internal temperature of only part of the hub motors in all the hub motors on the left side of the vehicle is higher than the reference temperature, keeping the rotating speed of the first circulating pump unchanged, simultaneously increasing the opening degree of the electronic control one-way regulating valve corresponding to each hub motor on the left side of the vehicle, the internal temperature of which is higher than the reference temperature, reducing the opening degree of the electronic control one-way regulating valve corresponding to each hub motor on the left side of the vehicle, the internal temperature of which is lower than the reference temperature, and ensuring that the opening degree of the electronic control one-way regulating valve corresponding to the hub motor with higher temperature is larger than the opening degree of the electronic control one-way regulating valve corresponding to the hub motor with lower temperature in any two hub motors on;
if the internal temperatures of all the hub motors positioned on the right side of the vehicle are higher than the reference temperature, increasing the rotating speed of the first circulating pump, simultaneously increasing the opening of the electric control one-way regulating valve corresponding to each hub motor positioned on the right side of the vehicle, and ensuring that the opening of the electric control one-way regulating valve corresponding to the hub motor with higher temperature is larger than the opening of the electric control one-way regulating valve corresponding to the hub motor with lower temperature in any two hub motors positioned on the right side of the vehicle;
if the internal temperatures of all the hub motors positioned on the right side of the vehicle are lower than the reference temperature, the rotating speed of the first circulating pump is reduced, meanwhile, the opening degree of the electric control one-way regulating valve corresponding to each hub motor positioned on the right side of the vehicle is reduced, and the opening degree of the electric control one-way regulating valve corresponding to the hub motor with higher temperature in any two hub motors positioned on the right side of the vehicle is ensured to be larger than the opening degree of the electric control one-way regulating valve corresponding to the hub motor with lower temperature;
if the internal temperature of only part of the hub motors in all the hub motors on the right side of the vehicle is higher than the reference temperature, the rotating speed of the first circulating pump is kept unchanged, meanwhile, the opening degree of the electronic control one-way regulating valve corresponding to each hub motor on the right side of the vehicle, the internal temperature of which is higher than the reference temperature, is increased, the opening degree of the electronic control one-way regulating valve corresponding to each hub motor on the right side of the vehicle, the internal temperature of which is lower than the reference temperature, is reduced, and it is ensured that the opening degree of the electronic control one-way regulating valve corresponding to the hub motor with higher temperature is larger than the opening degree of the electronic control one-way regulating valve corresponding to the hub motor with.
After the structure is adopted, compared with the prior art, the control method of the heat dissipation system of the wheel hub motor vehicle has the following advantages: the controller can adjust the opening of each electronic control one-way regulating valve according to the internal temperature of each in-wheel motor, so that the aim of radiating and cooling each in-wheel motor to different degrees is fulfilled by controlling the flow of the cooling liquid flowing into each in-wheel motor, the temperature of all in-wheel motors of the vehicle tends to be consistent, and finally the controllability and the driving safety of the vehicle can be effectively guaranteed.
Drawings
Fig. 1 is a schematic structural view of a heat dissipation system of an in-wheel motor vehicle of the present invention;
fig. 2 is a schematic top view of a cooling liquid tank in the heat dissipation system of the in-wheel motor vehicle according to the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;
fig. 5 is an exploded view of part of the components of the coolant tank in the heat dissipation system of the in-wheel motor vehicle of the present invention.
Description of reference numerals: 1. a frame; 2. a hub motor; 3. a coolant tank; 4. a power source; 5. a controller; 6. a temperature sensor; 7. an electric control one-way regulating valve; 8. a first circulation pump; 9. a second circulation pump; 10. a first liquid inlet; 11. a second liquid inlet; 12. a first liquid outlet; 13. a second liquid outlet; 14. a rotating shaft; 15. an impeller; 16. a blade; 17. a ratchet wheel; 18. cooling the fan blades; 19. a slider; 20. a spring; 21. a chute; 22. and (7) sealing the cover.
Detailed Description
The following provides a heat dissipation system for an in-wheel motor vehicle and a control method thereof, which are described in detail with reference to the accompanying drawings and the detailed description.
In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", and the like, indicate orientations or state relationships based on the orientations or state relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the mechanism or member referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
as shown in fig. 1 to 5, the present embodiment discloses a heat dissipation system for an in-wheel motor vehicle, which includes a vehicle frame 1, a plurality of in-wheel motors 2 with cooling pipes, a circulation pump, a cooling liquid tank 3, a power supply 4 and a controller 5, wherein the plurality of in-wheel motors 2 are respectively disposed on each wheel of the vehicle, the cooling liquid tank 3, the circulation pump, the power supply 4 and the controller 5 are all fixed on the vehicle frame 1, a temperature sensor 6 is disposed in each in-wheel motor 2, an inlet of the circulation pump is communicated with outlets of the cooling pipes of all in-wheel motors 2 through a pipeline, an outlet of the circulation pump is communicated with an inlet of the cooling liquid tank 3 through a pipeline, an outlet of the cooling liquid tank 3 is communicated with inlets of the cooling pipes of all in-wheel motors 2 through a pipeline, an electrically controlled one-way regulating valve 7 is disposed on a pipeline communicated with an inlet of the cooling pipe, All in-wheel motors 2 and all temperature sensors 6 are electrically connected with a controller 5, and the circulating pump, all in-wheel motors 2 and all controller 5 are electrically connected with a power supply 4.
Preferably, the circulating pump has two, be first circulating pump 8 and second circulating pump 9 respectively, through the pipeline intercommunication between the import of first circulating pump 8 and all cooling tube exports that are located frame 1 left in-wheel motor 2, through the pipeline intercommunication between the export of first circulating pump 8 and the import of coolant liquid case 3, through the pipeline intercommunication between the import of second circulating pump 9 and all cooling tube exports that are located frame 1 right in-wheel motor 2, through the pipeline intercommunication between the export of second circulating pump 9 and the import of coolant liquid case 3.
Preferably, the left side of coolant liquid tank 3 is equipped with first inlet 10, and the right side of coolant liquid tank 3 is equipped with second inlet 11, through the pipeline intercommunication between the export of first circulating pump 8 and first inlet 10, through the pipeline intercommunication between the export of second circulating pump 9 and the second inlet 11.
Preferably, a first liquid outlet 12 is arranged on the front side of the cooling liquid tank 3, a second liquid outlet 13 is arranged on the rear side of the cooling liquid tank 3, the first liquid outlet 12 is communicated with cooling pipe inlets of all the in-wheel motors 2 on the front wheel of the vehicle through a pipeline, and the second liquid outlet 13 is communicated with cooling pipe inlets of all the in-wheel motors 2 on the rear wheel of the vehicle through a pipeline.
Preferably, the inner peripheral wall of the cooling liquid tank 3 is circular, a rotating shaft 14 and an impeller 15 are arranged in an inner cavity of the cooling liquid tank 3, the rotating shaft 14 is arranged along the axis of the inner cavity of the cooling liquid tank 3 and is rotatably connected with the cooling liquid tank 3, in the embodiment, the upper end and the lower end of the rotating shaft 14 are connected with the top and the bottom of the cooling liquid tank 3 through bearings, and the bottom of the cooling liquid tank 3 is provided with a sealing cover 22; the impeller 15 is connected to the rotating shaft 14, four blades 16 are uniformly distributed on the impeller 15 in the circumferential direction, the inner cavity of the cooling liquid tank 3 is divided into four parts which are not communicated by the four blades 16, namely, the upper end surface of each blade 16 is in sliding fit with the top of the inner cavity of the cooling liquid tank 3, the lower end surface of each blade 16 is in sliding fit with the bottom of the inner cavity of the cooling liquid tank 3, and the outer end of each blade 16 is in sliding fit with the peripheral wall of the inner cavity of the cooling liquid tank 3; an inner edge type ratchet wheel 17 is arranged on the inner peripheral wall of the cooling liquid tank 3, a pawl mechanism matched with the ratchet wheel 17 is arranged at the outer end of each blade 16, one end of a rotating shaft 14 penetrates through one end of the cooling liquid tank 3 and extends out of the cooling liquid tank 3, one end of the rotating shaft 14 extending out of the cooling liquid tank 3 is connected with a cooling fan blade 18, and a first liquid inlet 10, a second liquid outlet 13, a second liquid inlet 11 and a first liquid outlet 12 are circumferentially and uniformly distributed on the side wall of the cooling liquid tank 3 in an anticlockwise direction; .
Preferably, the outlet of the first liquid inlet 10, the inlet of the second liquid outlet 13, the outlet of the second liquid inlet 11 and the inlet of the first liquid outlet 12 are respectively arranged on a radial side wall of one of the ratchet teeth of the ratchet 17.
Preferably, the pawl mechanism comprises a slider 19 and at least one spring 20, the outer end of the blade 16 being provided with a radial slide slot 21, the slider 19 being slidably arranged in the slide slot 21, the spring 20 being compressed between the bottom of the slide slot 21 and one end of the slider 19, so that the other end of the slider 19 abuts against the ratchet 17, i.e. the other end of the slider 19 abuts against the circumferential side wall of one of the ratchet teeth.
Preferably, each pawl mechanism has two springs 20, and the two springs 20 are vertically spaced in a radial slide slot 21.
Example 2:
the embodiment discloses a control method of a heat dissipation system of a hub motor vehicle in embodiment 1, which includes the following steps:
during the running process of the vehicle, the first circulating pump 8 and the second circulating pump 9 are kept in a running state;
the internal temperature of each hub motor 2 is obtained through a temperature sensor 6;
the controller 5 adjusts the opening degree of each electric control one-way regulating valve 7 and the rotating speeds of the first circulating pump 8 and the second circulating pump 9 according to the internal temperature of each in-wheel motor 2, so that the internal temperatures of all in-wheel motors 2 tend to be consistent, and the specific adjusting mode is as follows:
a reference temperature is set, the measured internal temperature of each in-wheel motor 2 is compared with the reference temperature,
if the internal temperatures of all the in-wheel motors 2 on the left side of the vehicle are higher than the reference temperature, the rotating speed of the first circulating pump 8 is increased, meanwhile, the opening degrees of the electric control one-way regulating valves 7 corresponding to all the in-wheel motors 2 on the left side of the vehicle are increased, and it is ensured that in any two in-wheel motors 2 on the left side of the vehicle, the opening degrees of the electric control one-way regulating valves 7 corresponding to the in-wheel motors 2 with higher temperatures are larger than the opening degrees of the electric control one-way regulating valves 7 corresponding to the in-;
if the internal temperatures of all the in-wheel motors 2 positioned on the left side of the vehicle are lower than the reference temperature, the rotating speed of the first circulating pump 8 is reduced, meanwhile, the opening degrees of the electric control one-way regulating valves 7 corresponding to all the in-wheel motors 2 positioned on the left side of the vehicle are reduced, and it is ensured that in any two in-wheel motors 2 positioned on the left side of the vehicle, the opening degrees of the electric control one-way regulating valves 7 corresponding to the in-wheel motors 2 with higher temperatures are greater than the opening degrees of the electric control one-way regulating valves 7 corresponding;
if the internal temperature of only part of the in-wheel motors 2 in all in-wheel motors 2 on the left side of the vehicle is higher than the reference temperature, keeping the rotating speed of the first circulating pump 8 unchanged, simultaneously increasing the opening degree of the electronic control one-way regulating valve 7 corresponding to each in-wheel motor 2 on the left side of the vehicle with the internal temperature higher than the reference temperature, reducing the opening degree of the electronic control one-way regulating valve 7 corresponding to each in-wheel motor 2 on the left side of the vehicle with the internal temperature lower than the reference temperature, and ensuring that the opening degree of the electronic control one-way regulating valve 7 corresponding to the in-wheel motor 2 with the higher temperature is greater than the opening degree of the electronic control one-way regulating valve 7 corresponding to the in-wheel motor 2 with;
if the internal temperatures of all the in-wheel motors 2 positioned on the right side of the vehicle are higher than the reference temperature, increasing the rotating speed of the first circulating pump 8, simultaneously increasing the opening degree of the electronic control one-way regulating valve 7 corresponding to each in-wheel motor 2 positioned on the right side of the vehicle, and ensuring that the opening degree of the electronic control one-way regulating valve 7 corresponding to the in-wheel motor 2 with higher temperature is larger than the opening degree of the electronic control one-way regulating valve 7 corresponding to the in-wheel motor 2 with lower temperature in any two in-wheel motors 2 positioned on the right side of;
if the internal temperatures of all the in-wheel motors 2 positioned on the right side of the vehicle are lower than the reference temperature, the rotating speed of the first circulating pump 8 is reduced, meanwhile, the opening degrees of the electronic control one-way regulating valves 7 corresponding to all the in-wheel motors 2 positioned on the right side of the vehicle are reduced, and it is ensured that the opening degrees of the electronic control one-way regulating valves 7 corresponding to the in-wheel motors 2 positioned on the right side of the vehicle are larger than the opening degrees of the electronic control one-way regulating valves 7 corresponding to the in-wheel motors 2 with lower temperatures in any;
if the internal temperature of only part of the in-wheel motors 2 in all in-wheel motors 2 on the right side of the vehicle is higher than the reference temperature, the rotating speed of the first circulating pump 8 is kept unchanged, meanwhile, the opening degree of the electronic control one-way regulating valve 7 corresponding to each in-wheel motor 2 on the right side of the vehicle with the internal temperature higher than the reference temperature is increased, the opening degree of the electronic control one-way regulating valve 7 corresponding to each in-wheel motor 2 on the right side of the vehicle with the internal temperature lower than the reference temperature is reduced, and it is ensured that the opening degree of the electronic control one-way regulating valve 7 corresponding to the in-wheel motor 2 with the higher temperature is greater than the opening degree of the electronic control one-way regulating valve 7 corresponding to the.
The above examples are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should be made within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (10)
1. A heat dissipation system of an in-wheel motor vehicle is characterized in that: comprises a frame (1), a plurality of hub motors (2) with cooling pipes, a circulating pump, a cooling liquid tank (3), a power supply (4) and a controller (5), wherein the plurality of hub motors (2) are respectively arranged on each wheel of a vehicle, the cooling liquid tank (3), the circulating pump, the power supply (4) and the controller (5) are all fixed on the frame (1), each hub motor (2) is internally provided with a temperature sensor (6), the inlet of the circulating pump is communicated with the outlets of the cooling pipes of all the hub motors (2) through pipelines, the outlet of the circulating pump is communicated with the inlet of the cooling liquid tank (3) through a pipeline, the outlet of the cooling liquid tank (3) is communicated with the inlets of the cooling pipes of all the hub motors (2) through a pipeline, and the pipeline communicated with the inlets of the cooling pipes of all the hub motors (2) is provided with an electric control one-way regulating valve (7), the circulating pump, all the hub motors (2) and all the temperature sensors (6) are electrically connected with the controller (5), and the circulating pump, all the hub motors (2) and the controller (5) are electrically connected with the power supply (4).
2. The heat dissipation system for an in-wheel motor vehicle according to claim 1, wherein: the circulating pump has two, is first circulating pump (8) and second circulating pump (9) respectively, through the pipeline intercommunication between the import of first circulating pump (8) and all cooling tube exports that are located left in frame (1) wheel hub motor (2), through the pipeline intercommunication between the export of first circulating pump (8) and the import of coolant liquid case (3), through the pipeline intercommunication between the import of second circulating pump (9) and all cooling tube exports that are located wheel hub motor (2) on frame (1) right side, through the pipeline intercommunication between the export of second circulating pump (9) and the import of coolant liquid case (3).
3. The heat dissipation system for an in-wheel motor vehicle according to claim 2, wherein: the left side of coolant liquid case (3) is equipped with first inlet (10), the right side of coolant liquid case (3) is equipped with second inlet (11), communicate through the pipeline between the export of first circulating pump (8) and first inlet (10), communicate through the pipeline between the export of second circulating pump (9) and second inlet (11).
4. The heat dissipation system for an in-wheel motor vehicle according to claim 3, wherein: the front side of coolant liquid case (3) is equipped with first liquid outlet (12), the rear side of coolant liquid case (3) is equipped with second liquid outlet (13), through pipeline intercommunication between first liquid outlet (12) and all cooling tube imports that are located in-wheel motor (2) on the vehicle front wheel, through pipeline intercommunication between second liquid outlet (13) and all cooling tube imports that are located in-wheel motor (2) on the vehicle rear wheel.
5. The heat dissipation system for an in-wheel motor vehicle according to claim 4, wherein: the interior perisporium of coolant liquid case (3) is circular, be equipped with pivot (14) and impeller (15) in the inner chamber of coolant liquid case (3), pivot (14) set up along the axis of coolant liquid case (3) inner chamber to with coolant liquid case (3) rotatable coupling, impeller (15) are connected on pivot (14), the circumference equipartition has four blades (16) on impeller (15), four blades (16) separate into the inner chamber of coolant liquid case (3) and do not communicate with each other four bibliographic categories branch, be equipped with the ratchet (17) of inner fringe formula on the interior perisporium of coolant liquid case (3), every all be equipped with on the outer end of blade (16) with ratchet (17) matched with pawl mechanism, the one end that pivot (14) one end passed coolant liquid case (3) stretches out outside coolant liquid case (3), and stretch out and be connected with cooling fan blade (18) on pivot (14) one end outside coolant liquid case (3), the first liquid inlet (10), the second liquid outlet (13), the second liquid inlet (11) and the first liquid outlet (12) are circumferentially and uniformly distributed on the side wall of the cooling liquid tank (3) in the anticlockwise direction.
6. The heat dissipation system for an in-wheel motor vehicle according to claim 5, wherein: the outlet of the first liquid inlet (10), the inlet of the second liquid outlet (13), the outlet of the second liquid inlet (11) and the inlet of the first liquid outlet (12) are respectively arranged on the radial side wall of one ratchet of the ratchet wheels (17).
7. The heat dissipation system of an in-wheel motor vehicle according to claim 5 or 6, wherein: the pawl mechanism comprises a sliding block (19) and at least one spring (20), a radial sliding groove (21) is formed in the outer end of the blade (16), the sliding block (19) is slidably arranged in the sliding groove (21), and the spring (20) is pressed between the groove bottom of the sliding groove (21) and one end of the sliding block (19) to enable the other end of the sliding block (19) to abut against the ratchet wheel (17).
8. The heat dissipation system for an in-wheel motor vehicle according to claim 7, wherein: each pawl mechanism is provided with two springs (20), and the two springs (20) are vertically distributed in a radial sliding groove (21) at intervals.
9. A control method of a heat dissipation system of an in-wheel motor vehicle according to any one of claims 2 to 8, characterized by comprising the steps of:
during the running process of the vehicle, keeping the first circulating pump (8) and the second circulating pump (9) in a running state;
the internal temperature of each hub motor (2) is obtained through the temperature sensor (6);
the controller (5) adjusts the opening of each electric control one-way regulating valve (7) and the rotating speeds of the first circulating pump (8) and the second circulating pump (9) according to the internal temperature of each hub motor (2), so that the internal temperatures of all the hub motors (2) tend to be consistent.
10. A control method of a heat dissipation system of an in-wheel motor vehicle according to claim 9, characterized by comprising the steps of: the controller (5) adjusts the opening degree of each electric control one-way adjusting valve (7) and the rotating speeds of the first circulating pump (8) and the second circulating pump (9) according to the internal temperature of each hub motor (2) in a specific adjusting mode that:
setting a reference temperature, comparing the measured internal temperature of each in-wheel motor (2) with the reference temperature,
if the internal temperatures of all the hub motors (2) on the left side of the vehicle are higher than the reference temperature, the rotating speed of the first circulating pump (8) is increased, meanwhile, the opening degrees of the electric control one-way regulating valves (7) corresponding to all the hub motors (2) on the left side of the vehicle are increased, and the opening degrees of the electric control one-way regulating valves (7) corresponding to the hub motors (2) with higher temperatures are larger than the opening degrees of the electric control one-way regulating valves (7) corresponding to the hub motors (2) with lower temperatures in any two hub motors (2) on the left side of the vehicle;
if the internal temperatures of all the hub motors (2) on the left side of the vehicle are lower than the reference temperature, the rotating speed of the first circulating pump (8) is reduced, meanwhile, the opening degrees of the electric control one-way regulating valves (7) corresponding to all the hub motors (2) on the left side of the vehicle are reduced, and the opening degrees of the electric control one-way regulating valves (7) corresponding to the hub motors (2) with higher temperatures are larger than the opening degrees of the electric control one-way regulating valves (7) corresponding to the hub motors (2) with lower temperatures in any two hub motors (2) on the left side of the vehicle;
if the internal temperature of only part of the hub motors (2) in all the hub motors (2) on the left side of the vehicle is higher than the reference temperature, keeping the rotating speed of the first circulating pump (8) unchanged, simultaneously increasing the opening degree of the electronic control one-way regulating valve (7) corresponding to each hub motor (2) on the left side of the vehicle, wherein the internal temperature of each hub motor (2) is higher than the reference temperature, reducing the opening degree of the electronic control one-way regulating valve (7) corresponding to each hub motor (2) on the left side of the vehicle, wherein the internal temperature of each hub motor (2) is lower than the reference temperature, and ensuring that the opening degree of the electronic control one-way regulating valve (7) corresponding to the hub motor (2) with higher temperature is larger than the opening degree of the electronic control one-way regulating valve (7) corresponding to the hub motor;
if the internal temperatures of all the hub motors (2) on the right side of the vehicle are higher than the reference temperature, the rotating speed of the first circulating pump (8) is increased, meanwhile, the opening degrees of the electric control one-way regulating valves (7) corresponding to all the hub motors (2) on the right side of the vehicle are increased, and the opening degrees of the electric control one-way regulating valves (7) corresponding to the hub motors (2) with higher temperatures are larger than the opening degrees of the electric control one-way regulating valves (7) corresponding to the hub motors (2) with lower temperatures in any two hub motors (2) on the right side of the vehicle;
if the internal temperatures of all the hub motors (2) on the right side of the vehicle are lower than the reference temperature, the rotating speed of the first circulating pump (8) is reduced, meanwhile, the opening degrees of the electric control one-way regulating valves (7) corresponding to all the hub motors (2) on the right side of the vehicle are reduced, and the opening degrees of the electric control one-way regulating valves (7) corresponding to the hub motors (2) with higher temperatures are larger than the opening degrees of the electric control one-way regulating valves (7) corresponding to the hub motors (2) with lower temperatures in any two hub motors (2) on the right side of the vehicle;
if the internal temperature of only part of the hub motors (2) in all the hub motors (2) on the right side of the vehicle is higher than the reference temperature, the rotating speed of the first circulating pump (8) is kept unchanged, meanwhile, the opening degrees of the electronic control one-way regulating valves (7) corresponding to the hub motors (2) on the right side of the vehicle, the internal temperature of which is higher than the reference temperature, are increased, the opening degrees of the electronic control one-way regulating valves (7) corresponding to the hub motors (2) on the right side of the vehicle, the internal temperature of which is lower than the reference temperature, are reduced, and the opening degrees of the electronic control one-way regulating valves (7) corresponding to the hub motors (2) with higher temperature are ensured to be larger than the opening degrees of the electronic control one-way regulating valves (7) corresponding to the hub motors (2) with lower.
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