126results about How to "Avoid ablation" patented technology

The invention relates to a relay and an electric meter. The relay comprises a contact system, wherein the contact system comprises a movable contact unit and a static contact unit; a pushing system; the connecting structure is connected with the pushing system and the moving contact unit, and the connecting position of the connecting structure and the pushing system is located on the side, away from the static contact unit, of the moving contact unit. According to the application, the pushing system is connected with the moving contact unit through the connecting structure, and the connecting position of the connecting structure and the pushing system is located on the side, away from the static contact unit, of the moving contact unit, so that when the moving contact and the static contact are closed to generate an arc, the moving contact unit can block the arc to prevent ablation of the pushing system; and the overall reliability and service life of the relay are effectively improved.

The utility model relates to the field of circuit protection, in particular to a contactor integrated with an excitation function, and an excitation ignition assembly, a first piston, a first conductive part, an auxiliary contact system, a push rod, a melt, an air passage, a second piston and an elastic part are integrated in the contactor. The melt and the auxiliary contact system are connected in series and then are connected in series between the two static contacts. In a normal working state, the auxiliary contact system is insulated and disconnected, when an overload current, a short-circuit current or an abnormal condition occurs, the ignition assembly is excited to act to drive the first piston and the first conductive piece to move, the first conductive piece enables the auxiliary contact system to be conducted and closed, and the melt is connected into a main loop in a parallel connection mode; and then the second piston and the elastic piece are driven to displace through the air passage, so that the contact system is switched off, the elastic piece generates irreversible deformation, and the first piston and the first conductive piece push the push rod to disconnect the melt. According to the invention, the power loss is low, zero-current cut-off of a main loop can be realized, and the breaking capacity and the breaking reliability are improved.

The utility model provides a fast closing circuit breaker, which comprises a contact mechanism, an operating mechanism and a limiting assembly, in the closing process, a moving contact has a first state in which the moving contact is linked with a moving contact frame and rotates towards a direction close to a static contact, and a second state in which the moving contact keeps a constant distance from the static contact after abutting against a limiting block and a first elastic piece stores energy; compared with the prior art, through the arrangement of the energy storage mechanism, the movable contact and the static contact can be quickly connected, the phenomenon that the contact is ablated or welded due to high temperature due to the fact that the contact is connected or disconnected due to human factors is avoided, and the safety of the contact is improved. And the service life of the circuit breaker is prolonged.

The invention discloses an electric arc dynamic suppression method for hot plugging of an electric meter connector, relates to the technical field of electric energy metering equipment, and aims to solve the problems of electric arc generation, overproof metering error and the like caused by passive protection and lack of dynamic cooperative control in the prior art. The core of the method is that gap distance and power grid voltage phase signals are acquired in real time through a microcontroller, and the plugging speed, the signal injection and the position fine adjustment are dynamically regulated and controlled in three stages of pre-contact, low-current transition and full connection; and a machine learning model is combined to optimize a parameter threshold value, a redundancy safety mechanism and a multi-phase electric meter cooperative control strategy, so that double management and control of arc peak energy and metering errors are realized. The method can actively inhibit arc generation, avoid connector ablation and insulation deterioration, guarantee metering continuity and accuracy, adapt to complex power grid and environment working conditions, and meet the precision requirement of the intelligent electric meter.

The turbine guide vane front edge air film cooling structure coping with the rotational flow incoming flow influence comprises a turbine guide vane front edge, a through cold air cavity is formed in the turbine guide vane front edge, and a plurality of rows of air film holes are formed in the outer side of the turbine guide vane front edge at intervals. The air film holes are arranged according to the real isobaric distribution characteristics of the front edge of the turbine guide vane under the influence of rotational flow incoming flow, and one end of each air film hole is communicated with the through cold air cavity. The technical problem that a combustion chamber outlet rotational flow field influences the turbine guide vane front edge gas film cooling characteristic is solved, and the turbine guide vane front edge heat insulation gas film cooling efficiency under the influence of rotational flow incoming flow is improved.

The invention relates to the technical field of aircrafts, in particular to an air-breathing power system and method for a Mars surface aircraft, and the air-breathing power system comprises an air inlet channel, an isolation section, a combustion chamber, a cooling channel, a spray pipe, a heat exchanger and a fuel device, the fuel device comprises a liquid fuel tank, a high-pressure pump, a magnesium powder storage tank, a powder feeder and a gasification nozzle. The air-breathing power system of the aircraft is designed aiming at the fact that gas on the surface of Mars is mainly composed of CO2, the air-breathing power system is provided with magnesium powder capable of reacting with CO2 and methane or hydrogen carrying the magnesium powder to be sprayed into a combustion chamber, CO2 needed by combustion is provided through compressed air in the high-speed flight process, and the combustion efficiency is improved. The air-breathing type power system does not need to carry a large amount of fuel and oxidizing agents like a common rocket engine, and the specific impulse of the engine of the air-breathing type power system is far higher than that of the engine of a common rocket.

The invention belongs to the technical field of electrical equipment, and discloses an isolating switch and switch equipment, the isolating switch comprises a static contact seat, a static contact, a moving contact seat and a moving contact, and the moving contact can slide in the moving contact seat in a reciprocating manner so as to be matched with the static contact to realize opening and closing; a hollow air cavity is formed in the end portion of the moving contact, an air guide hole is formed in the end portion of the air cavity and communicated with the air cavity, and a heat conduction piece is further arranged in the air cavity and connected with the moving contact in a heat conduction mode. When the moving contact is separated from the static contact, an electric arc is generated, heat energy released by the electric arc is conducted into the air cavity through the moving contact and the heat conduction piece, insulating gas in the air cavity is heated and expanded, air pressure in the air cavity is increased, and the gas is jetted out along the gas guide hole under the action of high pressure and quickly blown to the root of the electric arc. And the arc extinguishing performance of the isolating switch is improved, so that the isolating switch obtains shorter arcing time, the contacts are prevented from being ablated by the arc, and the insulation performance of the isolating switch is prevented from being reduced too fast.

The invention discloses a low-emission combustion chamber head structure adopting a V-shaped blade tail end, relates to the technical field of graded low-pollution combustion chambers of gas turbines, and solves the problem that the combustion stability is poor due to the fact that the combustion chamber head structure is short in service life and uneven in outlet airflow. Wherein the on-duty stage consists of a swirler, a venturi tube and a centrifugal nozzle; the main combustion stage is composed of an oblique radial swirler, a swirl vane, a V-shaped tail end vane, an annular oil collecting cavity and a direct injection type nozzle. An oblique radial swirler is used in the main combustion stage, and the axial length of the head of the swirler can be reduced while the swirling strength is guaranteed. According to the main combustion stage, a discrete multi-point direct injection type nozzle is adopted for initial pressure atomization, then fuel oil liquid drop crushing and mixing are enhanced through a V-shaped tail end structure, fuel oil is fully premixed in a rotational flow channel, pollutant emission can be greatly reduced, and then ultralow emission is achieved; the combustion chamber head structure is integrally designed and is convenient to replace and maintain.

The invention discloses a crankshaft surface heat treatment method and a heat treatment system based on the crankshaft surface heat treatment method. The crankshaft surface heat treatment method comprises the steps that a crankshaft is clamped on a rotary positioner; the surface of the crankshaft is sequentially divided into a plurality of stages of annular heat treatment areas from front to back in the axis direction, and each stage of annular heat treatment area is provided with a plurality of heat treatment sites avoiding holes in the surface of the crankshaft at intervals in the circumferential direction of the crankshaft; naturally sequencing the heat treatment sites; planning point position moving tracks of the crankshaft and the anode nozzle; and intermittent pulse voltage is applied between the crankshaft and the anode spray head, and heat cycle treatment is conducted on all the heat treatment sites on the crankshaft in sequence according to the sequence machining numbers of the heat treatment sites. The method has the beneficial effects that an electrolyte plasma surface heat treatment technology is combined with a plasma heat treatment method, heat treatment of a workpiece can be rapidly achieved under the condition of low energy consumption, crankshaft deformation is effectively reduced, secondary machining is avoided, recyclable electrolyte is adopted for cooling, and cost is saved.

The present invention discloses a micro-hole processing method and its application in preparing a micro-porous ceramic substrate. The micro-hole processing method comprises: clamping a part to be processed on a drilling platform, and adjusting the processing equipment before processing; according to the drilling parameters of the part to be processed, the processing equipment performs first depth processing of each micro-hole at each micro-hole position to be processed of the part to be processed; according to the drilling parameters, a cyclic drilling method is adopted to perform second depth processing of each micro-hole on the basis of the first depth of each micro-hole until a target hole is drilled through; the present invention proposes a micro-hole processing method and its application in preparing a micro-porous ceramic substrate, which is beneficial to improving the quality of fine micro-holes and reducing the scrap rate by adopting the cyclic drilling method of the target hole.

The invention discloses a high-pressure large-flow pre-combustion chamber structure of an afterburning cycle engine, and belongs to the technical field of machinery. The injector is of a three-cavity structure. And the uppermost part far away from the combustion chamber is the oxidant cavity, the oxidant cavity adopts a single-side inlet, and the flow of an oxidant in the oxidant cavity is more uniform through the flow equalizing plate in the oxidant cavity, so that the flow and the mixing ratio among the nozzles of the injector are uniform. A fuel secondary injection cavity is arranged at the lowermost part close to the combustion chamber, and the fuel subjected to secondary injection enters the combustion chamber through a plurality of self-impact injection holes in the injection panel. A fuel primary injection cavity is formed in the middle, and fuel injected for the first time enters the combustion chamber through a fuel nozzle. Fuel is divided into two independent cavities, mutual interference between the fuel in different injection modes is avoided, and stable combustion of the injector is facilitated.

The invention discloses a silicon controlled rectifier forward and reverse bidirectional switching solid-state module, and aims to solve the problems that an existing silicon controlled rectifier switching scheme is high in short circuit risk, high in cost and complexity and difficult to maintain, and a simple relay replacement scheme is short in service life. According to the technical scheme, the device comprises a hardware circuit structure and a single-chip microcomputer control logic part, the hardware circuit structure comprises a main loop silicon controlled rectifier unit, a relay switching unit, a single-chip microcomputer control unit, a signal acquisition unit and a power supply unit, and a mixed topological structure of three main loop silicon controlled rectifiers and a common double-pole double-throw relay is adopted. And in cooperation with closed-loop control logic of load state judgment, silicon controlled rectifier turn-off, relay switching and silicon controlled rectifier conduction, current forward and reverse safe switching is realized. Two silicon controlled rectifiers for switching are omitted, so that the risk of short circuit is thoroughly avoided; the relay is switched only when the silicon controlled rectifier has no output, so that the service life is prolonged; the circuit structure is simplified, the hardware and maintenance cost is reduced, and the anti-interference capability is remarkably improved.

The application relates to a partition-injection air-bleed circulation combustion chamber and a liquid rocket engine, wherein the partition-injection air-bleed circulation combustion chamber comprises a combustion chamber body and a partition-injection injector; the combustion chamber body is provided with an oxygen inlet collector, a fuel inlet collector and an air-bleed collector; the partition-injection injector is installed on the upper end of the combustion chamber body and is provided with injection holes; the oxygen inlet collector and the fuel inlet collector are communicated with the partition-injection injector and inject oxidants and fuels into the combustion chamber body through the partition-injection injector; the air-bleed collector is installed on the outer side of the middle part of the combustion chamber body and is communicated with the combustion chamber body; the partition-injection injector is disc-shaped and is divided into an equivalence zone, an oxygen-rich zone and a fuel-rich zone from the center to the outside; a partition ring is fixed to the lower surface of the partition-injection injector; the partition ring is in the form of a ring cylinder structure; the partition ring is located between the oxygen-rich zone and the fuel-rich zone and is used for separating the oxygen-rich zone and the fuel-rich zone.

The invention discloses an ignition control system based on a jet oscillator, comprising a duty flame stabilizer, a plurality of jet oscillators arranged on the duty flame stabilizer, and a fuel system. The jet oscillator is connected to a duty area behind the duty flame stabilizer, and the fuel system sprays fuel into the inlet of the jet oscillator. The outlets of the inner channel and the outer channel are provided with paddles, and the paddles rotate around the outer wall of the inner channel. The paddles control the source of air entering the jet oscillator, and the active control of the oxygen content in the combustion chamber is realized, the oxygen content is increased, ignition is realized at a smaller oil-gas ratio, and the ignition boundary is widened; when the paddles are adjusted to a suitable position, the airflow entering the jet oscillator is adjusted, so that the oxygen content and fuel distribution in the duty area can be adjusted.

The invention relates to the technical field of arc extinguishing devices, in particular to an arc extinguishing chamber and a circuit breaker. The arc extinguish chamber comprises a static contact seat and a moving contact seat which are arranged at an interval, the static contact seat and the moving contact seat are fixedly connected through an insulating supporting seat, a moving arc contact and a nozzle are arranged in the moving contact seat, the static contact seat is cylindrical, one end of the static contact seat far away from the moving contact seat is provided with a support, the center of the support is provided with a static arc contact seat, and the static arc contact seat is connected with the nozzle. A static arc contact is arranged in the static arc contact base, and a gas blocking cover is arranged on the side, facing the nozzle, of the support and used for blocking high-temperature ionization gas sprayed out of the nozzle. According to the invention, the gas blocking cover is arranged to effectively prevent high-temperature ionized gas from ablating the bracket at the bottom of the static contact seat.

This invention relates to the field of aero-engine technology, disclosing a combustion assembly and an aero-engine. The invention includes: a flame tube; an evaporator tube comprising a main pipe and several branch pipes, one end of the main pipe forming an evaporator tube inlet, the branch pipes corresponding to the other end of the main pipe, and the ends of the branch pipes away from the main pipe forming several evaporator tube outlets, which are located within the flame tube; and a fuel supply structure connected to the evaporator tube inlet. This invention, by arranging the branched evaporator tubes in a blood vessel-like pattern on the flame tube, increases the probability of fuel breaking up upon impact with the wall under the action of the branched structure, resulting in better fuel atomization. Simultaneously, because the branched evaporator tubes have a larger contact area with the hot wall surface, they absorb more heat, thus allowing the fuel to be heated more fully, thereby evaporating more fuel and ultimately improving combustion efficiency.

The utility model relates to a cooling device in a biomass carbonization furnace, which comprises two distributive pipes, water pipes are arranged at the tail ends of the distributive pipes, a plurality of pipe bodies are arranged between the two distributive pipes, heat dissipation assemblies are arranged on the inner sides of the pipe bodies, the two ends of the pipe bodies are respectively in threaded connection with mounting nozzles, and the tail ends of the mounting nozzles are fixedly connected with second connecting pipes. A plurality of first connecting pipes are symmetrically installed at the close ends of the two water distribution pipes, connecting sleeves are connected between the first connecting pipes and the second connecting pipes in a threaded mode, the heat dissipation assembly comprises three heat dissipation fin plates with the head ends fixedly connected, the included angle between every two adjacent heat dissipation fin plates is 120 degrees, the tail ends of the heat dissipation fin plates are fixedly connected with arc-shaped pieces, and the arc-shaped pieces are fixedly connected with the heat dissipation fin plates. Mounting strips are fixedly connected to the outer sides of the arc-shaped pieces, mounting grooves are formed in the inner side of the pipe body, and the mounting strips are mounted in the mounting grooves. The fire grate has the effect of cooling the fire grate, material fatigue or ablation caused by overheating is avoided, and the fire grate can be conveniently disassembled, replaced and descaled.

The utility model relates to a multi-stage polishing device for building wall material plate surfaces, which comprises a belt conveyor, a camera, a control system and a door frame arranged above the belt conveyor, and knife rests are respectively arranged on two sides of a cross beam of the door frame along the conveying direction; the knife rest comprises a sliding plate and a lifting plate, the sliding plate is connected with the cross beam through a sliding rail, and the sliding plate is connected with the lifting plate through a sliding rail; each lifting plate is provided with a lifting system used for controlling the lifting plate to move up and down and a grinding system used for grinding plates. A swing system is arranged on the cross beam and comprises a third motor arranged above the cross beam, a gear coaxially connected with the output end of the third motor and racks arranged on the two sides of the gear, and the racks are fixedly connected with the sliding plates of the adjacent tool rests respectively. The control system collects data transmitted by the camera to control the rotating speeds of the belt conveyor motor, the swing system motor, the grinding system motor and the lifting system motor. The multi-stage polishing device achieves multi-stage polishing and is better in polishing effect.

The invention relates to a magnesium-based hydrogen storage material and a preparation method thereof, and belongs to the technical field of hydrogen storage alloy materials and preparation thereof. The hydrogen storage material is an Mg-5Ni alloy with Sm powder uniformly distributed on the surface layer and an amorphous / nanocrystalline structure in the interior. The Sm powder is wrapped by the surface layer of the Mg-5Ni alloy to form composite powder of a core-shell structure; the hydrogen storage material is prepared from Mg-5Ni alloy powder and Sm powder as raw materials, and the raw materials are mixed and then subjected to dry ball milling. The hydrogen absorption and desorption kinetics of the existing magnesium-based hydrogen storage material can be effectively improved, the hydrogen desorption activation energy of the magnesium-based hydrogen storage material is reduced, and the problem that a solid additive is difficult to uniformly distribute on the surface is solved.

The application discloses a relay, which comprises a pair of static contacts, a pair of conductive parts and a moving contact. The pair of static contacts are arranged along a first direction. The conductive parts have conductive sections, the conductive sections of the pair of conductive parts are respectively connected to the pair of static contacts, and the conductive sections extend away from each other along the first direction, and the ends of the conductive sections away from the static contacts are static contact points. The moving contact is used to contact or separate the static contact points of the conductive sections of the pair of conductive parts, and the respective orthographic projections of the moving contact and the conductive sections on a target plane overlap. The target plane is perpendicular to the moving direction of the moving contact.

The invention discloses a power unit of a high-pressure gas ejection device and a using method of the power unit. The power unit comprises a gas chamber, and the gas chamber is provided with a gas charging port and a gas outlet; an air outlet screw cap is arranged outside the air outlet, and an air outlet through hole communicated with the air outlet is formed in the air outlet screw cap; a threshold value piece is arranged at the air outlet, the threshold value piece is a steel plate loaded with an ignition device and gunpowder, and the air outlet through hole and the air outlet are separated through the threshold value piece. The device can be repeatedly filled and reused, is low in use cost, is not easy to investigate, adopts a composite material for lightweight design and modular design, is light in weight, and is easy to disassemble and assemble.

The invention discloses a control system and method for preventing a hybrid vehicle type catalyst from being ablated, and belongs to the technical field of hybrid electric vehicles, and the method comprises the steps that S1, a vehicle control unit (VCU) inputs an instruction for requesting to start an engine to an electronic control unit (ECU); the fuel oil liquid level sensor inputs a fuel oil liquid level signal to the instrument controller; the instrument controller inputs a fuel oil liquid level signal to an electronic control unit (ECU); s2, an electronic control unit (ECU) judges whether the percentage of the fuel oil liquid level signal is larger than a preset value or not, if not, the step S3 is executed, and if yes, the step S4 is executed; s3, the electronic control unit (ECU) forbids starting of the engine, and the step S5 is executed; and S4, the electronic control unit (ECU) allows the engine to be started, the step S5 is executed, and the step S5 is finished. By means of the control system and method for preventing the hybrid power vehicle type catalyst from being ablated, the hybrid power vehicle type catalyst can be prevented from being ablated.

The utility model discloses a kind of double-pole spark plug ignition electrode needle, belong to ignition spark plug technical field, including spark plug metal shell, the side of spark plug metal shell is provided with center electrode unit and two side electrode units, the other side of spark plug metal shell has threaded connection part, the center electrode unit is located at the center position of the side of spark plug metal shell, and center electrode unit and spark plug metal shell coaxial heart layout, the center electrode unit includes the center electrode rod installed in the side of spark plug metal shell and the heat conduction core in the inner wall of center electrode rod;By setting side electrode unit in symmetry relative to center electrode unit, the ignition of more uniform can be realized in the mode of double-pole symmetry arrangement, to further can guarantee that ignition energy is more concentrated in ignition gap, effectively improve ignition success rate, avoid the energy consumption brought by multiple ignition.

This invention provides a method, system, and commercial vehicle for real-time calculation of clutch temperature in commercial vehicles, relating to the field of intelligent commercial vehicle clutches. After the vehicle is powered on, the chassis controller obtains the last shutdown time t0 and the current power-on time t1; it then determines whether the time interval (t1-t0) is greater than a preset time interval t. s If it is greater than t, the chassis controller obtains the initial clutch temperature t. f0 ; Calculate the slippage work of the clutch during starting or shifting; Calculate the temperature rise T caused by clutch slippage. a It can monitor the clutch temperature and the ambient temperature inside the chamber in real time after each power-on, and can be used for a clutch alarm system with real-time feedback, which is more intuitive and timely than clutch wear alarm methods.

The application relates to a direct-current relay. The direct-current relay comprises a moving spring sheet and an arc striking assembly; the arc striking assembly is arranged on the outer circumferential side of the moving spring sheet and comprises at least one arc striking magnet; wherein the surface of the arc striking magnet facing the moving spring sheet is a curved convex surface. The arc striking assembly can be applied to a scene in which the peripheral magnetic field of the moving spring sheet needs to be increased, can controllably adjust the arc striking strength and effect according to actual application needs, can avoid contact ablation, insulation deterioration, thermal runaway and system-level failure, and can effectively guarantee the safety and reliability of equipment.

The invention discloses a motor controller and a vehicle, a DC input copper bar in the motor controller comprises a first conductive sheet and a second conductive sheet, the resistance value of the second conductive sheet is not lower than that of the first conductive sheet, and when an abnormal large current passes, the second conductive sheet is not fused prior to the first conductive sheet; the first conducting strip comprises a first conducting section, a second conducting section and a fuse, the sectional area of the first conducting section is smaller than that of the second conducting section, the fuse is connected with the first conducting section in parallel, the fusing current of the fuse is lower than that of the first conducting strip, the fuse is fused in advance under the abnormal large current, the large current is completely borne by the first conducting section, and the fuse is connected with the first conducting section in parallel. When a large current passes through the first conductive section with the reduced sectional area, the first conductive section is quickly fused, so that the first conductive sheet is fused, a power supply loop is thoroughly cut off, rapid temperature rise of the DC input copper bar caused by abnormal current increase or abnormal contact resistance increase is prevented, and the reliability and the safety of the motor controller are improved.

This invention relates to a plasma generator based on a dense microporous material catalysis, belonging to the field of low-temperature plasma technology. The plasma generator contains at least one discharge unit, which includes a first electrode, a microporous ceramic medium, and a second electrode. The first electrode is used to connect to a power source, and the second electrode is used for grounding. The microporous ceramic medium is used to adsorb gas molecules and active particles generated by the plasma discharge. This invention generates micro-discharge in a dense microporous medium, which has an extremely high specific surface area. When gas passes through, it is adsorbed onto the surface of the micropores in the medium. Similarly, active substances in the plasma are adsorbed onto the surface of the micropores in the medium. This improves the contact efficiency between short-lived, highly active particles and free radicals in the plasma and the reactants, promotes surface catalytic reactions, and improves the overall efficiency of the device.

The invention relates to the technical field of high-voltage or large-current switches with arc extinguishing or arc preventing devices, in particular to an arc striking device for an isolating switch and the isolating switch. The disconnecting switch comprises an arc striking device for the disconnecting switch, the arc striking device for the disconnecting switch comprises arc striking contacts, the arc striking contacts comprise a moving arc contact and a static arc contact, the static arc contact is rotationally connected with a rotating shaft, the rotating shaft is provided with an elastic piece, and the included angle between the moving arc contact and a rotating rod of the corresponding static arc contact is smaller than 90 degrees. When the arc striking device for the disconnecting switch is installed on the disconnecting switch and the moving arc contact is not in contact with the static arc contact, the shortest distance between the moving arc contact and the static arc contact is set as L1, the shortest distance between the moving arc contact and the static contact is set as L2, L2-L1 is larger than the breakdown distance between the moving arc contact and the static contact, and L2-L1 is larger than the breakdown distance between the moving arc contact and the static contact. And the distance between the moving contact and the static contact in the moving direction of the moving contact is smaller than L2, and the designed arcing point is far away from the moving contact and the static contact, so that the moving contact and the static contact can be effectively protected, and splashing and ablation are avoided.

The present invention belongs to the technical field of clutch characteristics of manual transmission vehicles, and specifically provides a control method for the active protection function of the clutch of a manual transmission vehicle, comprising the following steps: obtaining vehicle condition information for entering the active protection function; determining the clutch active protection function state machine mode according to the obtained vehicle condition information; when entering the clutch active protection function mode, the chassis multi-function controller sends a message to the engine controller through the CAN line to control the engine output speed / torque limit; when the clutch active protection function is switched to a normal state, the chassis multi-function controller stops sending messages to the engine controller, the engine enters a normal driving mode, and outputs the clutch friction plate surface temperature at the same time. Actively send a speed / torque limit request to the engine ECU under suitable working conditions, so as to adjust the engine output speed and torque on the basis of ensuring power and smoothness, and realize the active protection function of the clutch.