35 results about "Fan clutch" patented technology

The invention relates to an aero-engine fan interstage planetary transmission system, a fan device and an aero-engine. The planetary transmission system comprises a planetary gear train, a clutch and a brake. The planetary gear train comprises a planetary carrier I connected with the low-pressure turbine shaft, a plurality of planetary gears I mounted on the planetary carrier I, a sun gear I internally meshed with the planetary gears I and a gear ring I externally meshed with the planetary gears I, and the planetary carrier I is in transmission connection with a second-stage fan I and a third-stage fan I; the gear ring I is in transmission connection with the first-stage fan I. The clutch is installed between the gear ring I and the sun gear I and used for selectively connecting the gear ring I and the sun gear I. The brake is installed between the sun gear I and the fan shell and used for selectively fixing the sun gear and achieving switching of power transmission paths and fan graded variable speed control. The fan interstage planetary speed change system is simple in structure, reliable in transmission and capable of achieving flexible differential control among stages of the fan and improving the pneumatic performance and the fuel efficiency of an engine under different working conditions.

This invention discloses an emergency engagement structure for a fan clutch, relating to the field of engine cooling technology. It addresses the problem in mechanical fans with clutches where leakage of transmission oil within the clutch causes the fan to lose power and stop, leading to diesel engine overheating and shutdown. The emergency engagement structure includes a drive shaft, a driven shaft, and an engagement unit. The drive shaft is connected to the engine, and the driven shaft is mounted on the fan. The drive shaft transmits rotation to the driven shaft and the fan via transmission oil. The engagement unit is located within the hollow portion of the driven shaft and serves to rigidly connect the driven shaft to the drive shaft. The actuator of the engagement unit is an electric actuator that pushes a cylindrical pin through a through-hole in the side wall of the driven shaft, abutting against the drive shaft. This achieves a rigid connection between the driven and drive shafts, allowing the fan to continue operating without relying on transmission oil and preventing diesel engine overheating.

The application discloses a control method of a harvesting machine diesel engine reversing fan, characterized in that: the control method comprises a manual control mode and / or an automatic control mode. According to the cooling liquid temperature of the engine, the control method of the designed relay is used to control the working of the forward and reverse fan clutch, so that the forward and reverse rotation and stop of the fan are realized. The control can realize the fan stop in the starting condition and the low-temperature condition, reduces the accessory consumption power of the fan, improves the starting ability of the whole vehicle and reduces the fuel consumption, achieves the purpose of removing the residual chippings of the radiator of the harvesting machine and avoiding high-temperature faults, and has the energy-saving function. In addition, the time of the forward rotation and the reverse rotation is automatically corrected and controlled according to the cooling water temperature of the engine, the air inlet temperature and the rotating speed, so that the automation and the intelligent level of the engine and the whole vehicle are improved.

The utility model discloses an automatic detection device for an electrically-controlled silicone oil fan clutch, and aims to solve the problems of low detection speed, poor consistency and lack of accurate measurement equipment in the conventional manual or semi-automatic detection method. The device comprises a working box body, a detection mechanism, a three-way moving mechanism, a circulating conveying mechanism and a blocking mechanism. And the detection mechanism comprises a laser range finder and a high-definition camera and is used for accurately measuring the height of the gear ring and inspecting the appearance. The three-direction moving mechanism enables the detection mechanism to be accurately positioned in a three-dimensional space. The cyclic conveying mechanism achieves automatic cyclic conveying of the clutch through an upper linear conveying assembly, a lower linear conveying assembly and a lifting conveying device. The blocking mechanism reasonably controls flowing of the clutch, and orderly detection is ensured. The device is further provided with a display computer used for displaying and storing detection data. According to the utility model, the detection precision and consistency are improved, the working efficiency is improved, the cost is reduced, data analysis and tracing are facilitated, and the device is suitable for mass production.

The present application relates to a kind of based on test bench silicon oil fan clutch simulation model correction method, belong to vehicle thermal management simulation and parameter correction technical field.The method obtains the active end speed, fan speed, transmission torque and shell temperature in silicon oil fan clutch test bench test, and calculates test slip rate;Establish simulation model and set initial viscosity-temperature function, initial heat transfer coefficient and initial flow resistance coefficient;Simulation torque, simulation shell temperature and simulation slip rate are obtained by simulation;Simulation results are compared with test results, and torque error, temperature error and slip rate error are calculated;According to error result, viscosity-temperature function, heat transfer coefficient and flow resistance coefficient are iteratively corrected until error meets preset threshold, and the corrected simulation model is output.The method can improve the comprehensive prediction accuracy of silicon oil fan clutch simulation model to torque, temperature and slip rate.

This application relates to an engine cooling system and control method, belonging to the field of engine cooling technology. The system includes an engine with an exhaust manifold, a turbine, an intercooler, a main compressor, an intake manifold, a fan clutch, and a main cooling fan connected to the fan clutch. The exhaust manifold is connected to the turbine, the main compressor is coaxially connected to the turbine, and the main compressor is connected to the intercooler. The intercooler cools the compressed air from the main compressor before it is introduced into the intake manifold. The system also includes an electronic control unit (ECU), a secondary compressor coaxially connected to the turbine, and an air cooling device connected to the secondary compressor via cooling pipes. The air cooling device is installed on high-temperature components of the engine. A flow control valve is installed on the cooling pipes, and a temperature sensor is installed on the engine. The ECU is electrically connected to the fan clutch, the temperature sensor, and the flow control valve. This application can reduce the load on the main cooling fan and improve engine fuel economy.

The invention discloses a matrix type engine fan which comprises an engine assembly, an assembling mechanism and a matrix mechanism, the assembling mechanism is arranged at the front end of the engine assembly, and the matrix mechanism is arranged on the assembling mechanism; the assembling mechanism comprises a fan support, an assembling assembly and a supporting assembly. And the assembling component comprises an idle pulley mounting seat, an idle pulley mounting hole, a fan clutch assembly mounting hole, a fan belt pulley mounting seat, a fan belt pulley fixing hole, a fan bracket mounting foot, a fan bracket mounting hole, an enclosed weight reduction groove, a side weight reduction groove and a top weight reduction groove. According to the scheme, the cooling efficiency of the fan is improved, the power consumption of the fan is reduced, the economical efficiency of the whole vehicle is improved, the noise of the fan is reduced, and the maintenance frequency and maintenance cost of the fan are reduced.

The present disclosure provides a silicone oil fan clutch and a vehicle, which relate to the field of vehicle clutch technology, wherein the silicone oil fan clutch includes a housing, a driven disc, an oil inlet valve plate and an oil return valve plate. A fan is provided on the outside of the housing. The front end face of the driven disc is provided with a primary oil return hole and a secondary oil return hole, and the edge of the rear end face is provided with a primary oil inlet hole and a secondary oil inlet hole that are oppositely arranged and spaced apart. The area of ​​the primary oil inlet hole is larger than that of the secondary oil inlet hole. The oil inlet valve plate controls the primary oil inlet hole and the secondary oil inlet hole to be closed when the clutch is in a disengaged state, and as the oil inlet valve plate rotates, the primary oil inlet hole and the secondary oil inlet hole are opened in sequence. The oil return valve plate controls the primary oil return hole and the secondary oil return hole to be completely sealed when the clutch is in a disengaged state. The clutch adds an oil return valve plate for sealing the return hole, and improves the design of the oil inlet hole, thereby increasing the proportion of time the fan is in a primary engagement state, reducing the power consumption of the whole vehicle, and improving the NVH performance of the whole vehicle.

The utility model provides a threaded connection type automobile silicone oil fan clutch performance test bench comprising a test box, the test box is connected with a motor, the motor is connected with a bearing seat, and the bearing seat is connected with a power head; the test box is connected with a synchronizing mechanism, and the synchronizing mechanism comprises a gear, a toothed belt and a fixed disc; the fixing disc is connected with a limiting mechanism and connected with a clutch through threads, and the clutch is connected with a fan. The test box is connected with the heating mechanism, and the heating mechanism is connected with the fan speed sensor. The pneumatic cylinder drives the fixing plate to descend, so that the heating pipe and the fan speed sensor directly face the fan, air enters the flow dividing pipe through the air blower, the air is heated when passing through the heating pipe, then the fan is heated, a plurality of gears synchronously rotate through the motor, the bearing seat and the power head, and then the fixing disc is driven to rotate. Therefore, the clutches and the fan are driven to rotate, and multiple clutches can be tested simultaneously.

The utility model discloses a combined type fan clutch, which belongs to the technical field of fan clutches, and comprises a fan clutch body, oil injection holes are arranged on the outer side of the fan clutch body, the oil injection holes are distributed in a columnar shape with wide inside and narrow outside, and a fixing frame with holes is fixed on the inner side of an inner cavity of each oil injection hole. The threaded column is supported through the fixing frame, then the piston block can be moved by rotating the threaded column, the piston column and the oil injection hole can be conveniently used for opening and closing through the characteristic that the oil injection hole is wide inside and narrow outside, the mechanism is simple, faults are not prone to occurring, and the oil injection hole can be conveniently opened and closed. Meanwhile, the added silicone oil has the lubricating and protecting effects, the threaded column is located in the oil injection hole and is not prone to being interfered by external parts, the fan clutch body does not need to be separated from the fan ring, oil injection operation is directly carried out through the fan ring, and the oil injection procedure is simplified.

The utility model provides an energy-saving electric control silicone oil fan clutch which comprises a rotating shaft, a fixing plate is sleeved on the rotating shaft, a control module and a temperature sensor are arranged at one end of the fixing plate, a driving disc is arranged at the other end of the fixing plate, a circulating cavity is arranged in the driving disc, an oil storage disc is arranged at one end of the driving disc, and an oil storage cavity is arranged in the oil storage disc. One end of the oil conveying plate is provided with an oil conveying assembly and a connecting assembly, and one end of the rotating shaft is provided with a motor of which the bottom is connected with a storage battery through a wire; the temperature of the engine is detected through the temperature sensor, when the temperature of the engine exceeds a set temperature threshold value, the control module controls the oil conveying assembly to work, so that the rotating speed of the clutch is increased, and when the temperature of the engine is lower than the set threshold value, the oil conveying assembly stops working, the rotating speed of the clutch is decreased, and energy is saved; energy generated when the clutch decelerates is recycled through the motor, the storage battery is charged through the control module, and the energy-saving effect is improved.

The invention relates to the technical field of engine cooling systems, in particular to an anti-slip method and device for a fan driving belt and a vehicle, and the method comprises the steps that according to the current accelerator opening degree change rate, the current engine rotating speed change rate and the current gearbox gear shifting impact coefficient, a torque sudden change predicted value between a belt of an electric control silicone oil fan and a driving wheel is calculated; when it is judged that a slip sign exists between the belt and the driving wheel according to the torque sudden change predicted value, the new duty ratio of the electrically-controlled silicone oil fan clutch is calculated, and the electrically-controlled silicone oil fan is controlled to operate according to the new duty ratio of the electrically-controlled silicone oil fan clutch. Therefore, the problem that when the rotating speed of an engine changes suddenly, due to mechanical inertia of the electric control silicone oil fan, instantaneous torque unbalance between a belt and a driving wheel is caused, and slipping is caused is solved, the duty ratio of an electric control silicone oil fan clutch can be actively adjusted before belt slipping occurs, and fan meshing force is reduced; and slipping between the belt and the driving wheel caused by mechanical inertia of the silicone oil fan is avoided.

The invention discloses a silicone oil fan clutch for controlling the inclination angle of cooling ribs based on fuzzy logic. The silicone oil fan clutch comprises a clutch shell, the cooling ribs, a track ring, a driven gear, a driving gear, a motor, a temperature sensor, a motor fixing plate, a driving shaft, a driving disc, a working cavity, a valve block and a positioning pin. The temperature sensor collects the temperature of silicone oil in the working cavity in real time, after collected temperature signals are processed through a fuzzy logic control algorithm, target inclination angle parameters and control instructions used for adjusting the heat dissipation ribs are output, and therefore the motor is driven to adjust the inclination angle change of the heat dissipation ribs relative to the clutch shell through the track ring gear transmission set. According to the real-time temperature of the silicone oil in the working cavity, self-adaptive dynamic regulation and control are carried out on the heat dissipation efficiency, and the device has the advantages of being high in applicability, stable and reliable in work, controllable in heat dissipation efficiency and the like.

The low-energy-consumption two-speed fan clutch comprises an upper shell and a fastening bolt, four mounting grooves are formed in the top of the upper shell and evenly distributed in the circumferential direction, a positioning groove is formed in one side of each mounting groove, the positioning grooves and the mounting grooves form an L-shaped mounting channel, and the fastening bolt is arranged in the L-shaped mounting channel. A positioning groove is formed in the upper shell, a positioning block is slidably connected into the positioning groove, a threaded groove is formed in the side, close to the upper shell, of the positioning block, a threaded hole is formed in the surface of the upper shell and extends into the positioning groove in a penetrating mode, a protective cover is fixedly connected to the top of the positioning block, and a sealing gasket is arranged between the protective cover and the upper shell. And the fastening bolts penetrate through the threaded holes and are in threaded connection with the interiors of the threaded grooves. According to the utility model, the positioning block corresponds to the mounting groove, the positioning block is in contact with the upper shell and the upper shell is rotated, so that the positioning block enters the positioning groove, the fastening bolt is rotated and screwed into the thread groove, and the protective cover is used for protecting the connecting bolt and the nut.

This invention discloses a silicone oil fan clutch based on fuzzy logic control of the tilt angle of the heat dissipation ribs. The clutch includes a clutch housing, heat dissipation ribs, a track ring, a driven gear, a driving gear, a motor, a temperature sensor, a motor mounting plate, a drive shaft, a drive disc, a working chamber, a valve plate, and a positioning pin. The temperature sensor collects the silicone oil temperature in the working chamber in real time. After processing the collected temperature signal through a fuzzy logic control algorithm, it outputs target tilt angle parameters and control commands for adjusting the heat dissipation ribs. This drives the motor to adjust the tilt angle of the heat dissipation ribs relative to the clutch housing through the track ring gear transmission group. This invention adaptively and dynamically regulates the heat dissipation efficiency based on the real-time temperature of the silicone oil in the working chamber, offering advantages such as strong applicability, stable and reliable operation, and controllable heat dissipation efficiency.

The invention discloses a pump type speed-adjustable fan clutch which comprises an output shaft, a working cavity arranged along the output shaft, an oil inlet cavity component and an intelligent control system.According to the clutch, stepless speed regulation is achieved by transmitting liquid torque in the working cavity and adjusting the liquid return amount through a flow control valve; the temperature / rotating speed sensor transmits a signal to the control unit, the control unit controls the electromagnetic valve and the thermosensitive control valve to work according to a PID calculation result, a temperature-rotating speed-flow closed loop is formed, the rotating speed of the fan is automatically matched with the heat dissipation requirement, and abrasion-free, stepless, closed-loop and multi-mode effects are achieved. The clutch is suitable for the scenes of automobile engine cooling systems, industrial equipment heat dissipation and the like.

The application relates to an engine integrated thermal management system and a control method, and belongs to the technical field of engine thermal management. The engine integrated thermal management system comprises an engine, an exhaust manifold, a turbine, an intercooler, a main air compressor, an air intake manifold, a fan clutch, a main cooling fan connected with the fan clutch, the exhaust manifold is communicated with the turbine, the main air compressor is coaxially connected with the turbine, the main air compressor is communicated with the intercooler, and the engine integrated thermal management system further comprises an electronic control unit, an auxiliary air compressor coaxially connected with the turbine and a vortex tube communicated with the auxiliary air compressor through a cooling pipeline, a flow control valve is arranged on the cooling pipeline; a temperature sensor for detecting the temperature of the engine is arranged on the engine, and the electronic control unit is electrically connected with the fan clutch, the temperature sensor and the flow control valve. Compressed air is separated into cold air flow and hot air flow through the vortex tube, the cold air flow directly air-cools high-temperature components of the engine, and the hot air flow simultaneously preheats fuel and coolant.

The utility model provides a silicone oil fan clutch with a fault self-checking function, which adopts the technical scheme that the silicone oil fan clutch comprises a base, a detection component arranged at one end of the base, a stator winding arranged on the inner wall of the base, a driving wheel arranged at the other end of the base, a rotor winding arranged in the driving wheel, and a driven wheel arranged at one end of the driving wheel, a torque sensor is arranged between the driving wheel and the driven wheel, a connecting assembly is arranged on the peripheral side of the torque sensor, one end of the driving wheel is connected with one end of the driven wheel through the connecting assembly, and the same set of rotating rods penetrate through the base, the driving wheel, the driven wheel and the torque sensor. Through the arrangement of the detection assembly and the torque sensor, the vibration of the clutch and the torque of the rotating rod are detected through the detection assembly, if the vibration and the torque exceed threshold values set by a user, an alarm is given, and the power supply phase sequence of the stator winding is controlled through the detection assembly, so that the driving wheel stops rotating, and the clutch can be subjected to fault self-detection.

The application discloses an electric control silicone oil fan clutch and a control method thereof. The electric control silicone oil fan clutch is internally provided with a working cavity, an oil storage cavity and an oil return channel. The oil return channel is communicated with the working cavity and the oil storage cavity. The electric control silicone oil fan clutch further comprises an oil return control mechanism. The oil return control mechanism comprises an oil return hole valve plate, an elastic component and a first electromagnetic component. The oil return hole valve plate is arranged in the oil storage cavity and is connected to the inner wall of the shell through the elastic component. The first electromagnetic component is arranged on the outer wall of the shell. The first electromagnetic component and the elastic component can drive the oil return hole valve plate to move along the axial direction to adjust the oil return area. The oil return control mechanism is additionally arranged to control the oil return area. In the normal rotation of the fan, a certain oil return area is maintained to realize the circulating flow of the silicone oil. When the fan needs to be separated, the oil return area can be increased to rapidly separate the fan, reduce the noise, reduce the oil consumption, avoid the torque occupied by the fan and ensure the power of the whole vehicle.

The invention discloses a high-power diesel engine distributed control system for an electric mine truck. The high-power diesel engine distributed control system comprises a common rail injection control unit, a service application module, a power supply module and a cloud service module, the common rail injection control unit is responsible for injection control, oil quantity adjustment and common rail fuel system operation state monitoring of a diesel engine common rail fuel system and controls operation of the diesel engine according to preset rail pressure and timing pulse spectrum. The service application module is responsible for starting and stopping control of a diesel engine, monitoring of operation parameters of the diesel engine and recording of historical data, abnormal operation state alarming and shutdown protection of the diesel engine, engine oil pre-supply pump control and cooling fan clutch control. The high-power diesel engine distributed control system for the electric mine card solves the application blank of domestic high-speed high-power diesel engine control systems applied to the electric mine card, can fully adapt to the installation space of the diesel engine and the whole vehicle, greatly improves the data transmission stability of the control system, and enables the matching selectivity of the diesel engine control system to be more flexible.

The application provides a kind of electric control silicone oil fan clutch fault detection method and device, the method includes: the electronic control unit of the vehicle to be tested responds to test instruction, obtains the fan speed of fan at the full engagement state of electric control silicone oil fan clutch, determines fan speed ratio based on fan speed and idle speed;Control engine from idle speed to set speed operation;Control electric control silicone oil fan clutch in the state of engine at set speed operation is separated, obtains the separation performance parameter of electric control silicone oil fan clutch;Based on separation performance parameter, separation fault detection is carried out to electric control silicone oil fan clutch;Control electric control silicone oil fan clutch in the state of engine at set speed operation is engaged, obtains the engagement performance parameter of electric control silicone oil fan clutch based on fan speed ratio;Electronic control unit is based on engagement performance parameter, engagement fault detection is carried out to electric control silicone oil fan clutch.

The application relates to the technical field of shell surface treatment, and discloses a surface treatment equipment for a fan clutch aluminum alloy shell, which solves the problems that the force receiving structure of the moving pressing plate of the existing disclosed shell surface treatment device is unreasonable, the subsequent linkage structure is difficult to reset, and the subsequent device is inconvenient to use normally, four groups of hydraulic telescopic rods are fixedly installed at the upper surface of a flow guide groove, the four groups of hydraulic telescopic rods are communicated with an oil storage tank through a second hydraulic pipe and a first hydraulic pipe, an extrusion piston plate is movably arranged at the inner side of the upper end of the oil storage tank, the extrusion piston plate is pushed through a reverse U-shaped block, the four groups of hydraulic telescopic rods are synchronously and uniformly pushed to move the back-shaped pressing plate downward and horizontally, a liquid delivery pipe is connected to the bottom of the liquid storage tank body, liquid medicine is injected into the inner side of the liquid storage tank body through the liquid delivery pipe, and the structure is automatically reset for subsequent use.

A thermal static calibration apparatus for testing viscous fan clutches and a method thereof is provided. The apparatus (100) includes a test rig (110) with a specialized mechanical fixture (120) designed to securely hold a half-assembled viscous fan clutch (130). This clutch comprises critical elements such as a cover (140), valve lever (150), dividing disc assembly (160), pin (170), and bimetal strip (180). Positioned orthogonally to the clutch, an air heater (190) directly heats the bimetal strip, causing controlled thermal expansion. A Linear Variable Differential Transformer (LVDT) (200) measures valve lever displacement during this process. The data recording module (210) captures temperature and deflection readings, enabling the generation of a temperature versus deflection graph. By analysing the graph's slope, the engagement temperature of the viscous fan clutch (130) is determined. Finally, a computational technique calculates the optimal pin length based on this engagement temperature.

The invention provides a silicone oil fan clutch and a vehicle, and relates to the technical field of vehicle clutches, and the silicone oil fan clutch comprises a shell, a driven disc, an oil inlet valve plate and an oil return valve plate. And a fan is arranged on the outer side of the shell. A first-stage oil return hole and a second-stage oil return hole are formed in the front end face of the driven disc, and a first-stage oil inlet hole and a second-stage oil inlet hole which are oppositely formed and distributed at intervals are formed in the edge of the rear end face of the driven disc. The area of the first-stage oil inlet hole is larger than that of the second-stage oil inlet hole. The oil inlet valve plate controls the first-stage oil inlet hole and the second-stage oil inlet hole to be closed when the clutch is in a separated state, and the first-stage oil inlet hole and the second-stage oil inlet hole are sequentially opened along with rotation of the oil inlet valve plate. The oil return valve plate controls the first-stage oil return hole and the second-stage oil return hole to be completely sealed when the clutch is in a separated state. According to the clutch, the oil return valve plate is additionally arranged for blocking the oil return hole, the design of the oil inlet hole is improved, the time proportion of the fan in the first-stage meshing state is increased, the power consumption of the whole vehicle is reduced, and the NVH performance of the whole vehicle is improved.

The invention belongs to the technical field of clutches, and particularly relates to a heat dissipation type fan clutch assembly capable of avoiding dust accumulation. The tops of the driving shafts at the two ends are fixedly connected with a driving plate, the driving shafts are rotationally sleeved with a rear cover, the driving plate is contained in a space between the rear cover and a front cover which are connected in a sealed mode, an oil storage cavity is defined by the top face of the driving plate and the inner wall of the front cover, and multiple concentric circular ring teeth are arranged on the end face, close to the outer edge, of the driving plate. The circular ring teeth on the upper end face and the lower end face are contained in the corresponding front cover tooth grooves and the corresponding rear cover tooth grooves and define meshing cavities, an oil inlet channel communicated with the meshing cavities is formed in the driving plate, and an oil return channel communicated with the meshing cavities and the oil storage cavity is formed in the front cover. According to the invention, accumulated dust and greasy dirt at the joint of the shell and the rear cover body can be automatically cleaned in real time; the rotating stability of the driving shaft can be improved; and oil pollution and tooth groove blockage caused by entering of external impurities can be reduced.

The application provides a silicone oil fan clutch and an engine cooling system. The silicone oil fan clutch comprises a clutch body and a clutch speed ratio control mechanism. The body is provided with an oil storage cavity with an oil outlet hole and an oil return hole. The control mechanism comprises a temperature sensing driving element and a valve plate assembly. The valve plate assembly has first and second adjusting parts corresponding to the oil outlet hole and the oil return hole respectively. When the temperature rises, the first adjusting part is first driven to increase the opening degree of the oil outlet hole, and then the second adjusting part is driven to reduce the opening degree of the oil return hole to a preset minimum value. When the temperature decreases, the action sequence is reversed. The application breaks through the limitation of traditional control of only the oil outlet and fixed oil return. In the medium and low temperature zone, the fan rotating speed, energy consumption and noise are effectively reduced by adjusting the oil return. In the high temperature zone, the high clutch speed ratio and the heat dissipation reliability are ensured by cooperative control. The whole process is pure mechanical linkage, which is fast in response and reliable in structure, and realizes reasonable matching of the speed ratio and optimization of energy efficiency under all working conditions.

The present application relates to a kind of silicon oil fan clutch slip rate prediction method, belong to vehicle thermal management and clutch state prediction technical field.The method obtains driving end speed, fan speed, target fan speed, silicon oil temperature and ambient temperature;According to silicon oil temperature, calculate silicon oil viscosity correction coefficient, calculate target slip rate and actual slip rate;Establish transmission torque estimation model, and solve balanced fan speed in combination with fan load curve;According to balanced fan speed output prediction slip rate;Again, the error correction model parameter between actual slip rate and prediction slip rate is utilized.The method can couple silicon oil viscosity-temperature characteristic, fan load curve and driving end-from driving end speed relationship, improve the accuracy and adaptability of slip rate prediction under different conditions.

The invention provides a silicone oil fan clutch assembly assembling tool, and relates to the technical field of assembling tools, the silicone oil fan clutch assembly assembling tool comprises a tool outer seat, the main body of the tool outer seat is a surrounding structure with an opening in the front side; a surrounding frame is fixedly arranged on the lower portion of the interior of the tool outer base. A supporting outer frame is fixedly arranged on the lower middle portion of the interior of the tool outer base. A main body of the rotary sliding frame is in a circular ring shape, four groups of guide supporting rods are fixedly arranged outside the rotary sliding frame at equal intervals, and the outer parts of the guide supporting rods are matched with the guide rails and are arranged inside the tool outer seat in a sliding manner; according to the tool, the assembly precision of all parts is ensured through the design of reference advanced multi-dimensional positioning; firstly, a central shaft is taken as a core reference, and a bottom shaft support adopts a semispherical structure to be matched with a tapered roller bearing, so that rotating friction of the central shaft is reduced, and drooping offset is avoided; the multiple sets of side air cylinders drive the shaft end surrounding rollers to form surrounding type lateral fixing, center shafts with different diameters can be adapted by adjusting the air pressure of the air pump, and it is guaranteed that the center shafts are located in the assembling center all the time.

The utility model discloses a control system of a silicone oil fan clutch and a vehicle, and the electrical system comprises an electromagnetic control switch which is used for controlling the opening and closing of an oil outlet between an oil storage cavity and a working cavity in the silicone oil fan clutch; the vehicle-mounted storage battery and the electromagnetic control switch are connected to a first circuit in series to form electric connection, and the vehicle-mounted storage battery is used for supplying power to the electromagnetic control switch after the whole vehicle is powered off. After the vehicle is powered off, the electromagnetic control switch is normally powered through the vehicle-mounted storage battery, so that the valve plate is located at the closed position, oil in the oil storage cavity is not prone to flowing into the working cavity, and therefore when the vehicle is started next time, the working cavity is in the state of no oil or little oil, and the fan cannot run at a high speed.