CN112727590A

CN112727590A - Vehicle and control method thereof

Info

Publication number: CN112727590A
Application number: CN202110037411.8A
Authority: CN
Inventors: 高婷婷; 鲁振; 户硕
Original assignee: Xuzhou Construction Machinery Group Co Ltd XCMG
Current assignee: Xuzhou Construction Machinery Group Co Ltd XCMG
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-04-30

Abstract

The invention relates to the technical field of vehicles, in particular to a vehicle and a control method thereof. The vehicle of the invention includes: an engine; the heat dissipation system comprises a heat dissipation device, a fan, a silicone oil clutch and a transmission shaft, wherein the fan is used for dissipating heat of the heat dissipation device, and the silicone oil clutch is in driving connection with the fan and is in driving connection with the engine through the transmission shaft; and wading sensing means for sensing whether the vehicle wades; the silicone oil clutch is electrically connected with the wading sensing device, and the rotating speed of the fan is adjusted to be within a safe rotating speed range when the wading sensing device senses that the vehicle wades. Based on this, can carry out the rotational speed to the cooling system's of vehicle fan under the operating mode of wading and adjust, reduce the risk that the fan damaged because of the rotational speed is too high, and then can improve the reliability of vehicle.

Description

Vehicle and control method thereof

Technical Field

The invention relates to the technical field of vehicles, in particular to a vehicle and a control method thereof.

Background

In general, a vehicle such as a construction vehicle is provided with a heat radiator and a fan to radiate heat from an engine and the like. The fan is driven by the engine to rotate to radiate the heat of the heat radiating device.

Under the wading condition, if the rotating speed of the fan is too high, the fan is easy to damage, and the reliability of the vehicle is affected.

Disclosure of Invention

The invention aims to solve the technical problems that: the reliability of the vehicle is improved.

In order to solve the above technical problem, the present invention provides a vehicle including:

an engine;

the heat dissipation system comprises a heat dissipation device, a fan, a silicone oil clutch and a transmission shaft, wherein the fan is used for dissipating heat of the heat dissipation device, and the silicone oil clutch is in driving connection with the fan and is in driving connection with the engine through the transmission shaft; and

the wading sensing device is used for sensing whether the vehicle wades or not;

the silicone oil clutch is electrically connected with the wading sensing device, and the rotating speed of the fan is adjusted to be within a safe rotating speed range when the wading sensing device senses that the vehicle wades.

In some embodiments of the present invention, the,

the wading sensing device comprises a switch, the switch is triggered when the vehicle wades, the silicone oil clutch is electrically connected with the switch, and the rotating speed of the fan is adjusted to be within a safe rotating speed range when the switch is triggered; and/or the presence of a gas in the gas,

wading sensing device includes wading the detection piece, wades the detection piece and detects whether the vehicle wades, and the silicon oil clutch is connected with wading the detection piece electricity to when wading the detection piece and detecting the vehicle and wading, adjust the rotational speed of fan to the safe rotational speed within range.

In some embodiments, the switch is disposed within a cab of the vehicle.

In some embodiments, the vehicle further includes a temperature detection device disposed on the heat dissipation device and detecting the temperature of the heat dissipation device, the temperature detection device is electrically connected to the silicone oil clutch, and the silicone oil clutch further adjusts the rotation speed of the fan according to a detection result of the temperature detection device.

In some embodiments, the heat dissipation device comprises at least one heat sink, the temperature detection device detects the temperature of at least one heat sink, and the silicone oil clutch starts to adjust the rotation speed of the fan when the temperature detection device detects that the temperature of any one heat sink reaches a first preset temperature of the silicone oil clutch.

In some embodiments, the at least one radiator comprises at least one of an engine water-cooled radiator, an intercooler radiator, a hydraulic oil radiator, and a torque converter oil-cooled radiator.

In some embodiments, the at least one radiator includes at least two of an engine water-cooling radiator, an inter-cooling radiator, a hydraulic oil radiator and a torque converter oil-cooling radiator, the silicone oil clutch adjusts the rotation speed of the fan according to the temperature of the radiator with the highest priority when the temperature detection device detects that the temperatures of the at least two radiators reach respective first preset temperatures at the same time, and the priorities of the engine water-cooling radiator, the inter-cooling radiator, the hydraulic oil radiator and the torque converter oil-cooling radiator are sequentially reduced among the engine water-cooling radiator, the inter-cooling radiator, the hydraulic oil radiator and the torque converter oil-cooling radiator.

In some embodiments, the vehicle comprises a controller, wherein the controller is electrically connected with the silicone oil clutch and the wading sensing device, and controls the silicone oil clutch to adjust the rotating speed of the fan to be within the safe rotating speed range when the wading sensing device senses that the vehicle wades.

In some embodiments, the controller is further electrically connected to the silicone oil clutch and a temperature detection device of the vehicle, and controls the silicone oil clutch to adjust the rotation speed of the fan according to a detection result of the temperature detection device.

In some embodiments, the controller is disposed on the engine.

In some embodiments, the heat dissipation system further comprises a bearing seat connected with the heat dissipation device, the first end of the transmission shaft is in driving connection with the engine, the second end of the transmission shaft penetrates through the bearing seat to be in driving connection with the silicone oil clutch, and the bearing seat supports the transmission shaft.

In some embodiments, the second end of the drive shaft is threadably connected to the silicone oil clutch.

In some embodiments, the heat dissipation system comprises a support, the support is connected with the heat dissipation device, the support is provided with a long circular hole, and the support is connected with the bearing seat through the long circular hole so as to adjust the coaxiality of the bearing seat and the engine.

In some embodiments, the propeller shaft is not a universal propeller shaft.

In some embodiments, the vehicle is a wheeled work vehicle.

The present invention still further provides a control method of a vehicle, including:

sensing whether the vehicle wades by using the wading sensing device;

when the wading sensing device senses that the vehicle wades, the silicone oil clutch is used for adjusting the rotating speed of the fan to be within the safe rotating speed range.

In some embodiments, sensing whether the vehicle is wading with the wading sensing device comprises:

when the vehicle wades into water, triggering a switch of the wading sensing device; and/or the presence of a gas in the gas,

whether the vehicle wades is detected by a wading detection piece of the wading sensing device.

In some embodiments, when the wading sensing device senses that the vehicle wades, adjusting the rotation speed of the fan to be within the safe rotation speed range by using the silicone oil clutch comprises:

when the wading sensing device senses that the vehicle wades, the controller of the vehicle controls the silicone oil clutch to adjust the rotating speed of the fan to be within the safe rotating speed range.

In some embodiments, the control method further comprises:

the temperature of the heat dissipation device is detected by a temperature detection device of the vehicle, and the rotating speed of the fan is adjusted by the silicone oil clutch according to the detection result of the temperature detection device.

In some embodiments, detecting the temperature of the heat sink using a temperature detection device of the vehicle, and adjusting the rotation speed of the fan using the silicone oil clutch according to a detection result of the temperature detection device includes:

detecting the temperature of at least one radiator of the heat dissipation device by using a temperature detection device;

and when the temperature detection device detects that the temperature of any radiator reaches the first preset temperature of the radiator, the silicone oil clutch is used for adjusting the rotating speed of the fan.

detecting the temperature of at least two radiators of an engine water-cooling radiator, an intercooling radiator, a hydraulic oil radiator and a torque converter oil-cooling radiator of the heat radiating device by using a temperature detecting device;

when the temperature detection device detects that the temperatures of at least two radiators reach respective first preset temperatures at the same time, the silicone oil clutch is controlled to adjust the rotating speed of the fan according to the temperature of the radiator with the highest priority, and the priorities of the engine water-cooling radiator, the inter-cooling radiator, the hydraulic oil radiator and the torque converter oil-cooling radiator are sequentially reduced among the engine water-cooling radiator, the inter-cooling radiator, the hydraulic oil radiator and the torque converter oil-cooling radiator.

Under the matching of the wading sensing device and the silicone oil clutch, the invention can adjust the rotating speed of the fan of the heat dissipation system of the vehicle under the wading working condition, reduce the risk of damage of the fan due to overhigh rotating speed and further improve the reliability of the vehicle.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 shows a partial structure of a vehicle in an embodiment of the invention.

Fig. 2 shows the fit relationship among the transmission shaft, the silicone oil clutch, the fan, the bearing block and the bracket in fig. 1.

Fig. 3 is a perspective exploded view of fig. 2 with the bearing housing and bracket omitted.

Fig. 4 shows the mating relationship of the bearing seat and bracket.

Fig. 5 is a schematic structural view of the bearing seat.

FIG. 6 is a logic block diagram of fan fording speed adjustment in some embodiments of the present invention.

FIG. 7 is a logic block diagram of wading speed adjustment for a fan in accordance with further embodiments of the invention.

FIG. 8 is a logic block diagram of wading speed adjustment in accordance with further embodiments of the present invention.

Fig. 9 shows a control method of a vehicle in the embodiment of the invention.

Description of reference numerals:

1. an engine;

2. a heat dissipation system; 21. a heat sink; 21a, a heat sink; 211. an engine water-cooled radiator; 212. an intercooling radiator; 213. a hydraulic oil radiator; 214. a torque converter oil-cooled radiator; 215. a liquid inlet pipe; 217. a support; 218. a wind scooper; 22. a fan; 23. a silicone oil clutch; 24. a support; 241. a long round hole; 25. a bearing seat; 26. a drive shaft; 261. a flange; 262. a thread; 27. a temperature detection device; 272. a temperature sensor;

3. a wading sensing device; 31. a switch; 32. a wading detection member;

4. and a controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

In the description of the present invention, it should be understood that the terms "first", "second", etc. are used to define the components, and are used only for the convenience of distinguishing the corresponding components, and if not otherwise stated, the terms have no special meaning, and thus, should not be construed as limiting the scope of the present invention.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Fig. 1 to 9 exemplarily show a vehicle of the invention and a control method thereof.

Referring to fig. 1, in some embodiments, a vehicle includes an engine 1 for providing power and a heat dissipation system 2 for dissipating heat. The engine 1 and the heat dissipation system 2 are disposed on a vehicle frame (not shown in the drawings). For example, in some embodiments, a hood (not shown) is provided on the vehicle frame, and the engine 1 and the heat dissipation system 2 are disposed in a space between the hood and the vehicle frame.

In some embodiments, the heat dissipation system 2 includes a heat dissipation device 21 and a fan 22. The heat sink 21 and the fan 21 together perform a heat dissipation function.

Wherein the heat sink 21 includes a heat sink 21 a. The number of the heat sinks 21a in the heat sink 21 may be 1, two, or more, that is, the heat sink 21 may include at least one heat sink 21 a. For example, in some embodiments, the heat sink 21 includes at least one radiator 21a of an engine water-cooled radiator 211, an inter-cooling radiator 212, a hydraulic oil radiator 213, and a torque converter oil-cooled radiator 214. The engine water-cooled radiator 211 is configured to radiate heat from the coolant of the engine 1. The intercooler radiator 212 is used to cool the intake air after the engine 1 is supercharged. The hydraulic oil-cooled radiator 213 is used to radiate heat of hydraulic oil in a hydraulic system (not shown in the drawings) of the vehicle. The converter oil-cooled radiator 214 is used to dissipate heat from hydraulic transmission oil in a torque converter (not shown) of a vehicle. The torque converter is generally provided on the engine 1 and drives a planetary gear transmission mechanism in the automatic transmission and connects the engine 1 to transmit the power of the engine 1 to the planetary gear transmission mechanism. Meanwhile, the torque converter has certain functions of automatically changing speed and torque.

Specifically, referring to fig. 1, in some embodiments, the heat sink 21 includes at least two radiators 21a of an engine water-cooled radiator 211, an inter-cooled radiator 212, a hydraulic oil radiator 213, and a torque converter oil-cooled radiator 214. The at least two heat sinks 21a are integrated into one body so that the heat sink 21 forms a heat dissipation assembly. For example, as shown in fig. 1, in some embodiments, the heat dissipation device 21 includes four radiators 21a, namely, an engine water-cooling radiator 211, an inter-cooling radiator 212, a hydraulic oil radiator 213, and a torque converter oil-cooling radiator 214. The four radiators 21a are integrally arranged on the support 217 to form a four-in-one combined type heat dissipation device, so that the heat dissipation device 21 integrates four functions of engine water cooling heat dissipation, engine supercharging air inlet heat dissipation, hydraulic oil heat dissipation and torque converter oil heat dissipation. The arrangement of the engine water-cooling radiator 211, the inter-cooling radiator 212, the hydraulic oil radiator 213 and the torque converter oil-cooling radiator 214 in the heat dissipation device 21 is not limited to the sequential arrangement in parallel as shown in fig. 1, but may be adjusted according to the pipeline and space requirements of the whole vehicle.

The fan 22 is used for sending airflow to the heat sink 21 to achieve a heat dissipation function together with the heat sink 21. Referring to fig. 1, in some embodiments, the fan 22 is disposed between the heat sink 21 and the engine 1, and is drivingly connected to the engine 1 through a transmission shaft 26 to rotate under the driving of the engine 1 to provide a heat dissipating airflow to dissipate heat of the heat sink 21. At this time, the fan 22 adopts an engine direct drive scheme, and the engine 1 not only provides power for running and operation of the vehicle, but also provides power for the fan 22 of the heat dissipation system 2.

During the operation of vehicles such as a work vehicle, for example, during the operation of wheeled work vehicles such as an excavator, a shovel, or a shovel all-in-one machine, wading conditions may be encountered. When the vehicle is wading, if the rotation speed of the fan 22 is too high, the fan 22 may be impacted, which may cause the fan 22 and the engine 1 to be damaged, and the reliability of the vehicle to be affected.

In the direct-drive scheme of the engine, the fan 22 and the engine 1 are directly and rigidly connected through the transmission shaft 26, in this case, since the rotation speed of the fan 22 rises and falls with the rise and fall of the rotation speed of the engine 1, in order to prevent the fan 22 from being damaged in the wading condition, the rotation speed of the engine 1 is generally reduced, however, the reduction of the rotation speed of the engine 1 may cause other problems, for example, the running of the vehicle may be affected due to insufficient power provided by the engine 1, and the vehicle may not smoothly cross the water. It can be seen that this reduction of the speed of the fan 22 in the wading condition by reducing the speed of the engine 1 still affects the operational reliability of the vehicle.

In view of the above, referring to fig. 1-6, in some embodiments of the present invention, the heat dissipation system 2 further comprises a silicone oil clutch 23, and the vehicle further comprises a wading sensing device 3. The silicone oil clutch 23 is drivingly connected to the fan 22 and to the engine 1 via a transmission shaft 26. For example, referring to fig. 1, in some embodiments, the silicone clutch 23 and the fan 22 are disposed in the wind scooper 218 mounted on the heat sink 21, the silicone clutch 23 is disposed on the transmission shaft 26, and the fan 22 is connected to the silicone clutch 23 by a connecting member such as a bolt. The wading sensing device 3 is used for sensing whether the vehicle wades. The silicone oil clutch 23 is electrically connected to the wading sensing device 3, and adjusts the rotation speed of the fan 22 to be within the safe rotation speed range when the wading sensing device 3 senses that the vehicle wades.

The silicone oil clutch 23 is a device that transmits torque by using a shear viscous force of silicone oil using the silicone oil as a medium. An oil storage cavity and a working cavity are arranged in the silicone oil clutch 23. Silicone oil is arranged in the oil storage cavity. And the silicone oil clutch 23 includes a valve plate. The opening of the valve plate influences the amount of silicon oil flowing into the working cavity. When the opening of the valve plate is increased, the amount of silicon oil entering the working cavity is increased, the friction force of the silicon oil clutch 23 is increased, and the output torque of the silicon oil clutch 23 is increased. When the opening of the valve plate is reduced, the amount of the silicon oil entering the working cavity is reduced, the friction force of the silicon oil clutch 23 is reduced, and the output torque of the silicon oil clutch 23 is reduced. In this way, the silicone oil clutch 23 is arranged between the transmission shaft 26 and the fan 22, so that the torque transmitted to the fan 22 by the engine 1 can be controlled by controlling the opening degree of a valve sheet of the silicone oil clutch 23, and the rotation speed of the fan 22 can be adjusted.

The wading sensing device 3 is used for responding when the vehicle wades in water, and informing the silicone oil clutch 23 to adjust the rotating speed of the fan 22, so that the rotating speed of the fan 22 is controlled under the wading working condition.

In order to realize the perception of the wading working condition, the implementation mode of the wading perception device 3 can be various.

For example, referring to figure 7, in some embodiments the wading sensing device 3 comprises a switch 31, the switch 31 being triggered when the vehicle is wading. The silicone oil clutch 23 is electrically connected to the switch 31, and adjusts the rotation speed of the fan 22 to be within the safe rotation speed range when the switch 31 is activated. Based on this, when the vehicle wades into water, trigger switch 31, then switch 31 will send the signal, inform silicon oil clutch 23 action, change the aperture of silicon oil clutch 23 valve block, make fan 22 rotatory under the lower rotational speed, reduce the damage risk of fan 22 when wading into water. Wherein, switch 31 can set up in the driver's cabin of vehicle to the driver in time triggers switch 31 when wading, realizes the quick response of fan speed regulation of wading.

For another example, referring to fig. 8, in some embodiments, the wading sensing device 3 includes a wading detection member 32, and the wading detection member 32 detects whether the vehicle wades. The silicone oil clutch 23 is electrically connected to the wading detector 32, and adjusts the rotation speed of the fan 22 to be within the safe rotation speed range when the wading detector 32 detects that the vehicle wades. Wherein, wade and detect piece 32 can realize the detection whether wade into water to the vehicle through detecting the water level. For example, in some embodiments, the wading detector 32 includes a level sensor that detects whether the vehicle is wading by detecting whether the level of the submerged wheels (not shown) or the fan 22 reaches a predetermined level. Therefore, the wading sensing device 3 can realize active identification of wading conditions. When wading is determined, the wading detection piece 32 can send a signal to inform the silicon oil clutch 23 to act, the opening degree of a valve plate of the silicon oil clutch 23 is changed, the fan 22 is enabled to rotate at a low rotating speed, and the risk that the fan 22 is damaged under the wading working condition is reduced.

For another example, in some embodiments, the wading sensing device 3 includes both the switch 31 and the wading detection element 32, and the wading detection element 32 is in signal connection with the silicone oil clutch 23 through the switch 31, so that when the wading detection element 32 detects that the vehicle wades, the switch 31 is manually or automatically triggered to notify the silicone oil clutch 23 to adjust the rotation speed of the fan 22.

Based on the above arrangement, when the vehicle wades, the wading sensing device 3 and the silicone oil clutch 23 can be matched to reduce the speed of the fan 22 with a high rotating speed, so that the rotating speed of the fan 22 is adjusted to be within a safe rotating speed range, the fan 22 or the engine 1 is prevented from being damaged due to overhigh rotating speed of the fan when the vehicle wades, the influence on the structure and the operation reliability of the vehicle due to the damage of the fan 22 or the engine 1 is avoided, and the improvement on the reliability of the vehicle is facilitated.

In addition, under the matching of the wading sensing device 3 and the silicone oil clutch 23, the rotating speed of the fan 22 under the wading working condition can be reduced without reducing the rotating speed of the engine 1, so that other problems of difficult vehicle water-crossing caused by the reduction of the rotating speed of the engine and the like can be avoided, and the running reliability of the vehicle can be further improved.

It can be seen that the rotation speed of the fan 22 is adjusted under the water-involved working condition by arranging the water-involved sensing device 3 and the silicone oil clutch 23, so that the reliability of the vehicle can be improved more effectively.

In addition, referring to fig. 1, in some embodiments, the vehicle further includes a temperature detection device 27, the temperature detection device 27 is disposed on the heat sink 21 and detects the temperature of the heat sink 21, the temperature detection device 27 is electrically connected to the silicone oil clutch 23, and the silicone oil clutch 23 further adjusts the rotation speed of the fan 22 according to the detection result of the temperature detection device 27. Like this, except can realizing wading the fan speed regulation under the operating mode, can also realize the fan speed regulation under the normal operating mode for under the normal operating mode, also can utilize silicon oil clutch 23 to adjust the rotational speed of fan 22 according to heat abstractor 21's temperature condition, in order to realize the radiating process that more accords with whole car actual demand, on the basis of realizing better radiating effect, it is extravagant to reduce the energy.

Wherein, when the heat sink 21 includes at least one heat sink 21a, the temperature detection device 27 may be configured to detect the temperature of all the heat sinks 21a in the heat sink 21. For example, referring to fig. 1, in some embodiments, the temperature detecting device 27 includes temperature sensors 272 corresponding to the radiators 21a one to one, and the temperature sensors 272 are disposed on the liquid inlet pipe 215 of the radiator 21a and used for detecting the temperature of the liquid inlet pipe 215 as the temperature of the radiator 21 a. For example, in the embodiment shown in fig. 1, the heat dissipation device 21 includes an engine water-cooling radiator 211, an inter-cooling radiator 212, a hydraulic oil radiator 213, and a torque converter oil-cooling radiator 214, and in the four radiators 21a of the engine water-cooling radiator 211, the inter-cooling radiator 212, the hydraulic oil radiator 213, and the torque converter oil-cooling radiator 214, one first temperature sensor 272 is respectively provided on the liquid inlet pipe 215 of each radiator 21a, and the temperature of each liquid inlet pipe 215 is respectively detected as the temperature of each radiator 21 a.

In the heat sink 21, each heat sink 21a may have a first preset temperature. When it is detected that the temperature of the radiator 21a (specifically, the temperature of the liquid inlet pipe 215 detected by the temperature sensor 272) reaches the first preset temperature, the rotation speed of the fan 22 may be initially adjusted by using the silicone oil clutch 23, and when the temperature of the radiator 21a is lower than the first preset temperature, the silicone oil clutch 23 may not adjust the rotation speed of the fan 22, and the fan 22 rotates at a lower rotation speed, that is, the first preset temperature is the temperature at which the rotation speed of the fan 22 is initially adjusted by using the silicone oil clutch 23. Based on this, in the process of adjusting the rotation speed of the fan 22 based on the detection result of the temperature detection device 27, the silicone oil clutch 23 may start to adjust the rotation speed of the fan 22 using the silicone oil clutch 23 when the temperature detection device 27 detects that the temperature of any one of the radiators 21a (specifically, the temperature of the liquid inlet pipe 215 detected by the temperature sensor 272) reaches the first preset temperature of itself.

In addition, in the heat sink 21, each heat sink 21a may have a second preset temperature. The second preset temperature is higher than the first preset temperature and is an alarm temperature. When the temperature of the radiator 21a (specifically, the temperature of the liquid inlet pipe 215 detected by the temperature sensor 272) is detected to be increased to the second preset temperature, the alarm device starts to give an alarm to prompt that the temperature of the heat dissipation system 2 is too high at this time, so as to remind the driver of paying attention to the alarm and check whether the vehicle is abnormal. Based on this, in the process of adjusting the rotation speed of the fan 22 based on the detection result of the temperature detection device 27, the alarm device may give an alarm when the temperature detection device 27 detects that the temperature of any one of the radiators 21a (specifically, the temperature of the liquid inlet pipe 215 detected by the temperature sensor 272) reaches the second preset temperature of itself. The alarm device can give an alarm through sound and light and the like. For example, in some embodiments, the warning device includes a warning light that flashes to provide a warning. In particular, a warning lamp may be provided in the cab to more promptly warn the driver.

Therefore, under the matching of the temperature detection device 27 and the silicone oil clutch 23, an intelligent heat dissipation control process can be realized, so that the rotating speed of the fan can be flexibly adjusted according to the actual heat dissipation requirement of the whole vehicle, and the energy waste is reduced.

In the process of adjusting the rotation speed of the fan 22 by the silicone oil clutch 23 based on the detection result of the temperature detection device 27, the detection result of the temperature detection device 27 may be compared with the temperature in the map table, and the rotation speed of the fan 22 may be adjusted based on the comparison result. Each radiator 21a may correspond to a map table in which the correspondence between the temperature of the radiator 21a and the rotation speed of the fan 22, i.e., one fan rotation speed in the map table, corresponds to one radiator 21 temperature. When the fan 22 is at a certain rotation speed, if the temperature of the radiator 21a is higher than the temperature in the map table, it indicates that the heat dissipation capability of the radiator 21a is insufficient, and the rotation speed of the fan needs to be increased to meet the heat dissipation requirement of the whole vehicle, whereas if the temperature of the radiator 21a is lower than the temperature in the map table, it indicates that the heat dissipation capability of the radiator 21a is sufficient, and the rotation speed of the fan can be reduced to reduce the energy consumption. For example, when it is detected that the temperature of the heat sink 21a reaches a first preset temperature, the rotation speed of the fan 22 is adjusted by using the silicone oil clutch 23, and in the process of adjusting the rotation speed of the fan 22, the temperature of the heat sink 21a is compared with the temperature in the map table, and when the fan 22 is adjusted to a certain rotation speed, the relationship between the temperature of the heat sink 21a and the temperature at the corresponding rotation speed in the map table is shown, and if the temperature of the heat sink 21a is higher than the temperature at the corresponding rotation speed in the map table, it indicates that the heat dissipation capability still needs to be improved, and the rotation speed of the fan 22 needs to be further improved, at this time, the opening degree of the valve plate of the silicone oil clutch 23 can be increased, the amount of silicone oil in the working chamber is increased, the friction force is increased, the output torque is increased, the rotation speed of the fan 22 is increased, and if the temperature of the heat sink 21a is lower, and at the moment, the opening degree of the valve plate of the silicon oil clutch 23 can be reduced, the silicon oil quantity of the working cavity is reduced, the friction force is reduced, the output torque is reduced, and the rotating speed of the fan 22 is reduced.

When the temperature detection device 27 detects that the temperatures of at least two radiators 21a (specifically, the temperature of the liquid inlet pipe 215 detected by the temperature sensor 272) reach the respective first preset temperatures at the same time, the rotation speed of the fan 22 may be adjusted according to the temperature of the radiator 21a with the highest priority. Among them, in the engine water-cooled radiator 211, the inter-cooling radiator 212, the hydraulic oil radiator 213, and the torque converter oil-cooled radiator 214, the priorities of the engine water-cooled radiator 211, the inter-cooling radiator 212, the hydraulic oil radiator 213, and the torque converter oil-cooled radiator 214 are sequentially lowered. For example, when the engine water-cooled radiator 211 and the intermediate-cooled radiator 212 reach the respective first preset temperatures at the same time, the silicone oil clutch 23 adjusts the rotation speed of the fan 22 according to the temperature detection result of the engine water-cooled radiator 211, and in the rotation speed adjustment process, if the detected temperature of the engine water-cooled radiator 211 is higher than the corresponding temperature in the map table at the corresponding rotation speed, the silicone oil clutch 23 is used to increase the rotation speed of the fan 22, and if the detected temperature of the engine water-cooled radiator 211 is lower than the corresponding temperature in the map table at the corresponding rotation speed, the silicone oil clutch 23 is used to decrease the rotation speed of the fan 22.

1-5, in some embodiments, the heat dissipation system 2 further includes a bearing housing 25. The bearing housing 25 is connected to the heat sink 21 and supports the drive shaft 26. The first end of the transmission shaft 26 is drivingly connected to the engine 1, for example, the first end of the transmission shaft 26 includes a flange 261, and the flange 261 is connected to the front crankshaft output end of the engine 1 to realize the driving connection of the first end of the transmission shaft 26 to the engine 1. The second end of the transmission shaft 26 passes through the bearing seat 25 and is in driving connection with the silicone oil clutch 23, for example, the second end of the transmission shaft 26 is in threaded connection with the silicone oil clutch 23, specifically, a thread 262 is arranged on the outer wall of the second end of the transmission shaft 26, a thread 262 is arranged on the inner wall of the shaft hole of the silicone oil clutch 23, and the second end of the transmission shaft 26 is inserted into the shaft hole of the silicone oil clutch 23 and is in threaded connection with the shaft hole through the thread 262.

Since the first end and the second end of the transmission shaft 26 are respectively supported by the engine 1 and the bearing housing 25, the transmission shaft 26 is supported by simply supporting the transmission shaft 26 with both ends fixed, which is advantageous to reduce the limitation on the longest distance between the fan 22 and the engine 1, compared to the case where the transmission shaft 26 is supported by a cantilever. Because, when the transmission shaft 26 is only mounted on the fan driving wheel of the engine 1 at the first end and supported by the engine 1 and is not supported by the bearing seat 25 at the second end, that is, when the engine 26 is in a cantilever state, the distance between the fan 22 and the engine 1 cannot be too large, otherwise it will be difficult to meet the requirement of the bending moment strength of the fan driving wheel, which imposes a great limitation on the design of the wind scooper 218. And the bearing seat 25 is arranged at the second end of the transmission shaft 26 to support the transmission shaft 26, so that the bearing mode of the transmission shaft 26 is changed from cantilever support to simple support, the limitation of the maximum length of the transmission shaft 26 due to the cantilever state can be avoided, the distance between the fan 22 and the engine 1 can be increased when needed, and the arrangement flexibility of the whole vehicle is improved.

Also, referring to fig. 2 and 3, in some embodiments, the drive shaft 26 does not include a universal joint, in which case the drive shaft 26 is simply a conventional drive shaft rather than a universal drive shaft, which advantageously reduces the restriction on the maximum distance between the engine 1 and the fan 22. Because, when the propeller shaft 26 is a universal propeller shaft, there is a strict limit on the shortest distance between the fan 22 and the engine 1, i.e., the distance between the fan 22 and the engine 1 cannot be too short, because the structure of the universal propeller shaft is complicated, but this is not suitable for a vehicle with a compact space arrangement. By providing the propeller shaft 26 as a common propeller shaft, however, the limitation of the universal propeller shaft to the shortest length of the propeller shaft 26 can be avoided, so that the distance between the fan 22 and the engine 1 can be reduced when necessary, enhancing the applicability to compact vehicles.

It can be seen that the support mode of the transmission shaft 26 which is not a universal transmission shaft is changed from a cantilever support mode to a simple support mode, so that the limitation of the direct drive scheme of the engine on the distance between the engine 1 and the fan 22 can be reduced, the limitation of the cantilever state on the maximum length of the transmission shaft 26 is not needed to be considered when the distance between the engine 1 and the fan 22 is designed, the limitation of the transmission shaft 26 on the minimum length when the transmission shaft 26 is a universal transmission shaft is also not needed to be considered, the design can be freely carried out according to actual requirements, and the arrangement flexibility of the whole vehicle is improved.

The connection between the bearing seat 25 and the heat sink 21 can be realized by the bracket 24. For example, referring to fig. 1-5, in some embodiments, a bracket 24 is coupled to the heat sink 21 and a bearing block 25 is mounted on the bracket 24. Specifically, in some embodiments, the bracket 24 is fixed to the heat sink 21 by a bolt or the like. The bracket 24 is provided with an elongated hole 241, and the bracket 24 is connected to the bearing seat 25 through the elongated hole 241, for example, as shown in fig. 4 and 5, the bracket 24 is provided with 4 elongated holes 241, the four elongated holes 241 are arranged at intervals along the circumferential direction of the transmission shaft 26, and four corners of the bearing seat 25 are respectively connected to the four elongated holes 241. The oblong hole 241 has the advantage that the coaxiality between the bearing seat 25 and the engine 1 (specifically, the crankshaft of the engine 1) can be adjusted according to field installation conditions, so that more stable and reliable simple support for the transmission shaft 26 is realized.

In summary, the vehicle provided by the embodiment of the invention can realize an intelligent heat dissipation control process, and has the advantages of high structure and operation reliability and flexible arrangement mode.

In addition, referring to fig. 9, based on the vehicle of the foregoing embodiments, the present invention also provides a control method of a vehicle, including:

s100, sensing whether the vehicle wades by using the wading sensing device 3;

and S200, when the wading sensing device 3 senses that the vehicle wades, adjusting the rotating speed of the fan 22 to be within a safe rotating speed range by using the silicone oil clutch 23.

In some embodiments, the step S100 of sensing whether the vehicle is wading by using the wading sensing device 3 includes:

when the vehicle wades, the switch 31 of the wading sensing device 3 is triggered; and/or the presence of a gas in the gas,

whether the vehicle is wading is detected by the wading detector 32 of the wading sensing device 3.

In some embodiments, the step S200 of adjusting the rotation speed of the fan 22 to be within the safe rotation speed range by using the silicone oil clutch 23 when the wading sensing device 3 senses that the vehicle wades includes:

when the wading sensing device 3 senses that the vehicle wades, the controller 4 of the vehicle controls the silicone oil clutch 23 to adjust the rotation speed of the fan 22 to be within the safe rotation speed range.

In some embodiments, the control method further comprises:

the temperature of the heat sink 21 is detected by a temperature detection device 27 of the vehicle, and the rotation speed of the fan 22 is adjusted by the silicone oil clutch 23 based on the detection result of the temperature detection device 27.

In some embodiments, detecting the temperature of the heat sink 21 using the temperature detecting device 27 of the vehicle, and adjusting the rotation speed of the fan 22 using the silicone oil clutch 23 according to the detection result of the temperature detecting device 27 includes:

detecting the temperature of at least one radiator 21a of the heat sink 21 with a temperature detecting device 27;

when the temperature detection device 27 detects that the temperature of any one of the radiators 21a reaches the first preset temperature of itself, the rotation speed of the fan 22 is increased by the silicone oil clutch 23.

detecting the temperature of at least two radiators 21a of an engine water-cooled radiator 211, an inter-cooling radiator 212, a hydraulic oil radiator 213, and a torque converter oil-cooled radiator 214 of the radiator 21 with the temperature detection device 27;

when the temperature detection device 27 detects that the temperatures of at least two radiators 21a reach respective first preset temperatures at the same time, the silicone oil clutch 23 is controlled to adjust the rotation speed of the fan 22 according to the temperature of the radiator 21a with the highest priority, and the priorities of the engine water-cooling radiator 211, the inter-cooling radiator 212, the hydraulic oil radiator 213 and the torque converter oil-cooling radiator 214 are sequentially reduced among the engine water-cooling radiator 211, the inter-cooling radiator 212, the hydraulic oil radiator 213 and the torque converter oil-cooling radiator 214.

Referring to fig. 6-8, the adjustment of the speed of the fan 22 in the various embodiments of the present invention may be performed under the control of the controller 4.

For example, in some embodiments, the controller 4 electrically connects the silicone oil clutch 23 and the wading sensing device 3, and controls the silicone oil clutch 23 to adjust the rotation speed of the fan 22 to be within the safe rotation speed range when the wading sensing device 3 senses that the vehicle is wading. Based on this, when wading sensing device 3 perceives that the vehicle is wading, wading sensing device 3 can send the signal to controller 4, controller 4 then receives the signal of wading sensing device 3 after, sends the signal to silicon oil clutch 23, control silicon oil clutch 23's valve block aperture diminish, makes the silicon oil in the working chamber flow to the oil storage chamber, reduces the silicon oil volume in the working chamber, reduces the torque that silicon oil clutch 23 exported fan 22, reduces the rotational speed of fan 22, makes fan 22 low-speed operation, reduces the damage risk of fan 22 when wading.

For another example, in some embodiments, the controller 4 electrically connects the silicone oil clutch 23 and the temperature detection device 27 of the vehicle, and controls the silicone oil clutch 32 to adjust the rotation speed of the fan 22 according to the detection result of the temperature detection device 27. Based on this, the temperature detection device 27 can send the collected temperature signal to the controller 4, and the controller 4 compares the received temperature signal with a map table in the system after receiving the signal of the temperature detection device 27, and determines whether the heat dissipation system 2 meets the heat dissipation requirement of the whole vehicle at this time. If the temperature of the heat dissipation device 21 is determined to be higher according to the comparison result, it is determined that the heat dissipation performance of the heat dissipation system 2 is insufficient and cannot meet the heat dissipation requirement of the whole vehicle, at this time, the controller 4 sends a signal to the silicone oil clutch 23 to control the silicone oil clutch 23 to increase the rotation speed of the fan 22, so as to improve the heat dissipation performance of the heat dissipation system 2. If the temperature of the heat dissipation device 21 is determined to be low according to the comparison result, it is determined that the heat dissipation performance of the heat dissipation system 2 is sufficient, and at this time, the controller 4 sends a signal to the silicone oil clutch 23 to control the silicone oil clutch 23 to reduce the rotation speed of the fan 22, so as to save energy consumption. When the heat sink 21 includes at least two heat sinks 21a, when the temperature of the heat sink 21a with the highest priority is detected to be higher than the temperature at the corresponding fan speed in the map table, the temperature of the heat sink 21 is determined to be higher, and otherwise, when the temperature of the heat sink 21a with the highest priority is detected to be lower than the temperature at the corresponding fan speed in the map table, the temperature of the heat sink 21 is determined to be lower.

Referring to fig. 1, in some embodiments, the controller 4 is provided on the engine 1. At this time, the controller 4 is an independent controller outside the vehicle control unit, and is more conveniently electrically connected with the wading sensing device 3, the temperature detection device 27 and the silicone oil clutch 23, so that a smoother and more reliable fan rotating speed adjusting process is realized. The controller 4 may be connected to the vehicle controller through a CAN bus, so that the controller 4 transmits the received temperature signal to the vehicle controller to compare with a map table stored in the vehicle controller.

In the present invention, the controller 4 may include a memory and a processor coupled to the memory, the processor being configured to execute the fan speed control method of the embodiments based on instructions stored in the memory.

The memory may be a high-speed RAM memory or a non-volatile memory (non-volatile memory), for example. The memory may also be a memory array. The storage may also be partitioned and the blocks may be combined into virtual volumes according to certain rules. The processor may be a central processing unit CPU, or an application Specific Integrated circuit asic, or one or more Integrated circuits configured to implement the control method of the vehicle of the embodiments.

The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle, characterized by comprising:

an engine (1);

the heat dissipation system (2) comprises a heat dissipation device (21), a fan (22), a silicone oil clutch (23) and a transmission shaft (26), wherein the fan (22) is used for dissipating heat of the heat dissipation device (21), and the silicone oil clutch (23) is in driving connection with the fan (22) and is in driving connection with the engine (1) through the transmission shaft (26); and

wading sensing means (3) for sensing whether the vehicle is wading;

the silicone oil clutch (23) is electrically connected with the wading sensing device (3), and when the wading sensing device (3) senses that the vehicle wades, the rotating speed of the fan (22) is adjusted to be within a safe rotating speed range.

2. The vehicle of claim 1,

the wading sensing device (3) comprises a switch (31), the switch (31) is triggered when the vehicle wades, the silicone oil clutch (23) is electrically connected with the switch (31), and the rotating speed of the fan (22) is adjusted to be within a safe rotating speed range when the switch (31) is triggered; and/or the presence of a gas in the gas,

the wading sensing device (3) comprises a wading detection piece (32), the wading detection piece (32) detects whether the vehicle wades, the silicone oil clutch (23) is electrically connected with the wading detection piece (32), and when the wading detection piece (32) detects that the vehicle wades, the rotating speed of the fan (22) is adjusted to be within a safe rotating speed range.

3. Vehicle according to claim 2, characterized in that the switch (31) is arranged in the cab of the vehicle.

4. The vehicle according to claim 1, characterized in that the vehicle further comprises a temperature detection device (27), the temperature detection device (27) is provided on the heat sink (21) and detects the temperature of the heat sink (21), the temperature detection device (27) is electrically connected to the silicone oil clutch (23), and the silicone oil clutch (23) further adjusts the rotation speed of the fan (22) according to the detection result of the temperature detection device (27).

5. The vehicle according to claim 4, characterized in that the heat dissipating means (21) comprises at least one radiator (21a), the temperature detecting means (27) detects the temperature of the at least one radiator (21a), and the silicone oil clutch (23) starts to adjust the rotation speed of the fan (22) when the temperature detecting means (27) detects that the temperature of any one of the radiators (21a) reaches its first preset temperature.

6. The engine (1) cooling system according to claim 5, wherein the at least one radiator (21a) includes at least one of an engine water-cooled radiator (211), an inter-cooling radiator (212), a hydraulic oil radiator (213), and a torque converter oil-cooled radiator (214).

7. The engine (1) cooling system according to claim 5, wherein the at least one radiator (21a) includes at least two of an engine water-cooling radiator (211), an inter-cooling radiator (212), a hydraulic oil radiator (213), and a torque converter oil-cooling radiator (214), and the silicone oil clutch (23) adjusts the rotation speed of the fan (22) according to the temperature of the radiator (21a) with the highest priority when the temperature detection device (27) detects that the temperatures of the at least two radiators (21a) reach respective first preset temperatures at the same time, and among the engine water-cooling radiator (211), the inter-cooling radiator (212), the hydraulic oil radiator (213), and the torque converter oil-cooling radiator (214), the engine water-cooling radiator (211), the inter-cooling radiator (212), and the torque converter oil-cooling radiator (214), the engine water-cooling radiator (211), the inter-cooling, The priorities of the hydraulic oil radiator (213) and the torque converter oil-cooled radiator (214) are sequentially lowered.

8. The vehicle according to any one of claims 1 to 7, characterized in that the vehicle comprises a controller (4), wherein the controller (4) is electrically connected with the silicone oil clutch (23) and the wading sensing device (3), and controls the silicone oil clutch (23) to adjust the rotation speed of the fan (22) within a safe rotation speed range when the wading sensing device (3) senses that the vehicle wades.

9. The vehicle according to claim 8, characterized in that the controller (4) further electrically connects the silicone oil clutch (23) and a temperature detection device (27) of the vehicle, and controls the silicone oil clutch (32) to adjust the rotation speed of the fan (22) according to a detection result of the temperature detection device (27).

10. The vehicle according to claim 8, characterized in that the controller (4) is provided on the engine (1).

11. The vehicle according to any one of claims 1 to 7, wherein the heat dissipation system (2) further comprises a bearing housing (25), the bearing housing (25) is connected with the heat dissipation device (21), a first end of the transmission shaft (26) is in driving connection with the engine (1), a second end of the transmission shaft (26) passes through the bearing housing (25) to be in driving connection with the silicone oil clutch (23), and the bearing housing (25) supports the transmission shaft (26).

12. Vehicle according to claim 11, characterized in that the second end of the transmission shaft (26) is screwed with the silicone oil clutch (23).

13. The vehicle according to claim 11, characterized in that the heat dissipation system (2) comprises a bracket (24), the bracket (24) is connected with the heat dissipation device (21), a long circular hole (241) is arranged on the bracket (24), and the bracket (24) is connected with the bearing seat (25) through the long circular hole (241) so as to adjust the coaxiality of the bearing seat (25) and the engine (1).

14. Vehicle according to claim 1, characterized in that the propeller shaft (26) is not a universal propeller shaft.

15. The vehicle of claim 1, characterized in that the vehicle is a wheeled work vehicle.

16. A control method of a vehicle according to any one of claims 1 to 15, characterized by comprising:

sensing whether the vehicle wades by using the wading sensing device (3);

when the wading sensing device (3) senses that the vehicle wades, the rotating speed of the fan (22) is adjusted to be within a safe rotating speed range by the silicon oil clutch (23).

17. The control method according to claim 16, wherein the sensing whether the vehicle is waded by using the wading sensing device (3) includes:

when the vehicle wades into the water, a switch (31) of the wading sensing device (3) is triggered; and/or the presence of a gas in the gas,

and detecting whether the vehicle wades by using a wading detection piece (32) of the wading sensing device (3).

18. The control method according to claim 16, wherein the adjusting the rotation speed of the fan (22) to be within the safe rotation speed range using the silicone oil clutch (23) when the wading sensing device (3) senses that the vehicle wades comprises:

when the wading sensing device (3) senses that the vehicle wades, the controller (4) of the vehicle controls the silicone oil clutch (23) to adjust the rotating speed of the fan (22) to be within a safe rotating speed range.

19. The control method according to any one of claims 16 to 18, characterized by further comprising:

the temperature of the heat sink (21) is detected by the temperature detection device (27) of the vehicle, and the rotational speed of the fan (22) is adjusted by the silicone oil clutch (23) according to the detection result of the temperature detection device (27).

20. The control method according to claim 19, wherein the detecting the temperature of the heat sink (21) with a temperature detecting device (27) of the vehicle, and the adjusting the rotation speed of the fan (22) with the silicone oil clutch (23) based on the detection result of the temperature detecting device (27) includes:

-detecting the temperature of at least one heat sink (21a) of said heat sink (21) with said temperature detection means (27);

when the temperature detection device (27) detects that the temperature of any one radiator (21a) reaches a first preset temperature, the rotation speed of the fan (22) is adjusted by the silicon oil clutch (23).

21. The control method according to claim 20, wherein the detecting the temperature of the heat sink (21) with a temperature detecting device (27) of the vehicle, and the adjusting the rotation speed of the fan (22) with the silicone oil clutch (23) based on the detection result of the temperature detecting device (27) includes:

detecting the temperature of at least two radiators (21a) of an engine water-cooling radiator (211), an inter-cooling radiator (212), a hydraulic oil radiator (213) and a torque converter oil-cooling radiator (214) of the radiator (21) by using the temperature detection device (27);

when temperature detection device (27) detected two at least the temperature of radiator (21a) reaches respective first preset temperature simultaneously, according to the temperature of the highest radiator of priority (21a), control silicon oil clutch (23) adjust the rotational speed of fan (22) engine water-cooling radiator (211), well cold radiator (212) hydraulic oil radiator (213) with in converter oil cold radiator (214), engine water-cooling radiator (211) well cold radiator (212) hydraulic oil radiator (213) and the priority of converter oil cold radiator (214) reduces in proper order.