105 results about "Electronic throttle" patented technology

The invention relates to an intelligent control technology of an internal combustion engine, in particular to a multivariable cooperative control method of a dual-fuel engine, which realizes dynamic optimization matching of fuel injection and an air system through deep reinforcement learning and multivariable decoupling control technologies. According to the method, a dual-fuel engine multivariable cooperative control system based on deep reinforcement learning and dynamic decoupling is constructed, the dual-fuel engine multivariable cooperative control system is composed of an air system control layer, a multivariable decoupling layer and a fuel injection control layer, and the air system control layer controls the fuel injection control layer through a TD3-PID algorithm according to the vehicle speed, the vehicle speed and the vehicle speed. The rotating speed N, the torque T, the common rail pressure Prail, the fuel temperature Tfuel and the mixed fuel density rho mix are operated in real time to serve as state variables, data are collected and processed, and the dynamic adjustment amount of the electronic throttle valve is obtained; by means of a PSO-PID decoupling mechanism and a DDPG-PID intelligent control algorithm, decoupling regulation and control over the dual-fuel dynamic ratio, the EGR rate and the supercharging pressure according to working condition changes are achieved, the economical efficiency, the emission performance and the dynamic performance of the dual-fuel engine under the dynamic operation working condition are remarkably improved, and the method has the advantages of being high in self-adaptive capacity and high in robustness.

The utility model belongs to the technical field of diesel engines, and relates to a hydrogen fuel single-cylinder engine which comprises a piston and a piston pit located at the end of the piston, and the piston pit is of a shallow-basin-shaped structure. The system further comprises a hydrogen inlet system and an electric control system, the hydrogen inlet system comprises a hydrogen sprayer, a hydrogen cylinder, a gas delivery pipe and a pressure increasing valve, the electric control system comprises a control unit, an electronic accelerator and a crankshaft position sensor, the hydrogen cylinder is communicated with the hydrogen sprayer through the gas delivery pipe, the hydrogen sprayer is communicated with the combustion chamber, and the pressure increasing valve is arranged on the gas delivery pipe. And the control unit is electrically connected with the hydrogen sprayer, the electronic throttle and the crankshaft position sensor respectively. The structure of the piston pit is improved, the electronic control gas injection system and the fuel oil injection system are adopted to replace a traditional pure fuel oil injection system, timing and quantification of hydrogen gas injection can be guaranteed, good economical efficiency is achieved, and the hydrogen gas replacement rate can reach about 90%; pollutant emission is greatly reduced, and low oil consumption is kept.

The invention discloses an electronic throttle valve body and sector gear assembling device and method.The electronic throttle valve body and sector gear assembling device comprises a rack and further comprises a torsional spring sector gear assembling mechanism, a sector gear body assembling mechanism and a welding mechanism which are arranged on the rack, and the torsional spring sector gear assembling mechanism is used for assembling a sector gear and a torsional spring; the sector gear body assembling mechanism is used for assembling the assembled torsional spring and the sector gear on the body, and the welding mechanism is used for welding the sector gear and the body. The device has the advantages that the torsional spring, the sector gear and the body can be quickly assembled, compared with manual assembly, the efficiency is higher, the precision is higher, the whole device only needs to transfer products manually, the space for adopting a mechanical transfer mechanism is saved, and the size of the whole device is reduced.

The utility model discloses a plastic shell light-weight electronic throttle valve which comprises a throttle valve shell, a supporting sleeve is fixedly connected to the upper end of the throttle valve shell, a driving shaft is connected into the supporting sleeve in a sleeved mode, and according to the plastic shell light-weight electronic throttle valve, a fixing block loses constraint by rotating and dismantling a screw. The cover body can be conveniently moved upwards to drive the clamping ring and the sealing ring to be disassembled, the rotating shaft can be conveniently moved upwards to disassemble the throttle valve piece for cleaning, maintaining and replacing, the clamping pin, the rotating shaft and the shaft sleeve are designed to conveniently and rapidly clamp the driving shaft, and the situation that normal use is affected by lateral deviation and shaking when the throttle valve piece rotates is prevented; the design of the clamping ring and the cover body can limit the throttle valve piece, the throttle valve piece is prevented from automatically moving upwards to affect use, the supporting sleeve loses constraint by rotating the dismounting bolt, the supporting sleeve is conveniently moved towards one side to drive the clamping block to be separated from the automobile mounting position, and the throttle valve shell can be rapidly dismounted for maintenance and replacement.

The invention provides a vehicle thermal management system vehicle-mounted refrigerator refrigerating device, a vehicle and a control method. The vehicle thermal management system vehicle-mounted refrigerator refrigerating device comprises a first electronic throttle valve, a second electronic throttle valve, a refrigerator evaporator, a micro booster pump, a switching valve and a controller. The first electronic throttle valve and the second electronic throttle valve are connected in parallel between an outlet of a vehicle condenser and an inlet of a refrigerator evaporator; an outlet of the refrigerator evaporator is connected with the input end of the switching valve, the first output end of the switching valve is connected with the common air return pipeline, the second output end of the switching valve is connected with the pressurization air return pipeline, and the miniature booster pump is arranged on the pressurization air return pipeline. And the output ends of the common air return pipeline and the pressurized air return pipeline are converged and then connected to a low-pressure air return port of the vehicle compressor. According to the vehicle-mounted refrigerator refrigerating device of the vehicle thermal management system, the vehicle and the control method, the comprehensive effects of energy conservation, noise reduction, weight reduction, cost reduction and reliability improvement can be achieved while rapid cooling of the refrigerator is achieved.

The present application belongs to the technical field of dual-axis compressor testing of aircraft engines, and specifically relates to a speed control system and method for dual-axis compressor testing of aircraft engines. The system is designed to be able to switch between the speed control mode of the configuration interface and the speed control mode of the electronic throttle lever by using a speed control mode switching button, and is also designed with speed control mode switching control logic to ensure safe and disturbance-free switching between the speed control mode of the configuration interface and the speed control mode of the electronic throttle lever. In addition, the system is designed to be able to switch between the speed control mode and the speed control mode by using a speed control / linkage control switching button, thereby realizing separate control of the speeds of the inner and outer shafts, as well as dual-axis matching and linkage control, which well meets the requirements of dual-axis compressor testing.

The invention discloses a control method, device and system for a diesel engine supercharger. The control method comprises the following steps that current state data of a diesel engine are obtained; according to the rotating speed of the engine and the fuel injection quantity, the current intake manifold required pressure is determined in a table look-up MAP mode; determining a correction coefficient according to the altitude; determining a demand pressure value according to the correction coefficient and the current intake manifold demand pressure; and the real-time air inlet pressure of the air inlet manifold is obtained, and the opening degree of the electronic throttle valve is controlled according to the required pressure value till the real-time air inlet pressure of the air inlet manifold is equal to the required pressure value. According to the method, the engine rotating speed, the oil injection quantity and the corresponding optimal required pressure are determined through the bench test when the real-time rotating speed of the supercharger is equal to the supercharger rotating speed limit value, the current required pressure of the intake manifold can be determined through table look-up in actual operation, and it is guaranteed that the supercharger does not overspeed; and the problem of engine power loss caused by fuel injection quantity reduction is avoided.

The invention relates to the technical field of electronic throttle valves, in particular to a method and system for recognizing the opening position of a valve plate through a Hall sensor, and the method comprises the steps: obtaining a control signal on a brushless motor, and controlling the Hall sensor to collect a magnetic field signal to obtain a magnetic signal sequence after the control signal is collected; extracting a magnetic pole inversion point according to the magnetic signal sequence, and determining a motor rotation angle according to the magnetic pole inversion point; and the valve plate opening is generated according to the motor rotation angle. In order to solve the problem that in the prior art, two rotating speed sensors need to be arranged in an electronic throttle valve, the cost is high, in the scheme, the rotating speed sensors are replaced with Hall sensors, the layout positions of the Hall sensors on a substrate are adjusted, and the Hall sensors are arranged close to a Hall element at the front end of a worm; therefore, the opening angle of the valve plate can be accurately measured after the sensor is simplified, and the product cost is reduced.

The utility model relates to diesel engine electronic throttle valve technical field, concretely is a long -life diesel engine electronic throttle valve, including throttle component, install two groups of carbon deposition protection components in throttle component in, the throttle component includes the stay rod, the valve piece of fixed mounting in the stay rod inside and the two guide rods of fixed mounting in the valve piece inside and symmetrical distribution. Through installing two groups of carbon deposition protection components of symmetrical distribution at the both ends of the throat pipe, accompanying the valve piece is turned on one's side, two guide rods on the valve piece will drive two slide posts relative side bending and stretch, two post heads after being stretched finally will drive two inner gaskets shrink to the middle part of the throat pipe cavity, and then will make two filter gas elastic net stretch into the inner eight character structure, thereby can carry out carbon deposition capture to the incoming gas, and the quick reset after the filter gas elastic net loses pressure, and can further improve the separation of the surface carbon of filter gas elastic net under the knocking action of the reverse vane.

The invention relates to the technical field of throttle valve polishing, and discloses electronic throttle valve body polishing equipment which comprises a base plate, a supporting table is arranged on the base plate, a clamping air cylinder is fixedly arranged above the supporting table, a fixing frame is installed at the bottom of the telescopic end of the clamping air cylinder, an electric sliding table is installed on the base plate, and the electric sliding table is arranged to be a U-shaped sliding table. A movable vertical plate is slidably arranged on one side of the electric sliding table, double grinding heads used for polishing the two cavity walls of the inner cavity of the throttle valve body are rotatably installed on the side portion of the movable vertical plate, a fixed vertical plate is fixedly installed on the other side of the electric sliding table, and a single grinding head is rotatably installed on the side portion of the fixed vertical plate. According to the scheme, the single grinding head and the double grinding heads are in butt joint in the center of the inner cavity of the throttle valve body, wall leaning of the grinding heads is achieved through the electric sliding table after butt joint, the inner wall of the throttle valve body is effectively prevented from being scratched in the butt joint process, and locking after butt joint is achieved in the wall leaning process of the grinding heads.

This invention discloses a device and control method for maintaining uniform pressure and temperature in the engine intake chamber. The device includes a circulation pipe, with its two ends fixedly connected to the flywheel end and free end of the intake chamber, respectively. The intake passages of the first and last cylinders are connected to the intake chamber. Temperature and pressure detection devices are installed on both the first and last cylinder intake passages. A regulating valve is installed on the circulation pipe to adjust the flow rate of the boosted intercooled air in the circulation pipe. The detection devices are connected to the ECU, and the regulating valve is controlled by the ECU. The regulating valve is configured as an electronic throttle. The ECU monitors the intake pressure and temperature signals of each cylinder in real time, obtains a preset electronic throttle opening angle based on the temperature and pressure differences, and controls the opening angle of the electronic throttle according to the preset angle. This precisely controls and adjusts the flow rate of the boosted intercooled air in the circulation pipe, ensuring uniform intake pressure and temperature in each cylinder, improving engine knock pressure uniformity, exhaust temperature uniformity, and reducing vibration.

The present invention discloses an electronic throttle structure and a speed-changing bicycle, wherein the electronic throttle structure is applied to a speed-changing bicycle and comprises: a throttle seat, a control module provided on the throttle seat, a first control member and a second control member provided on the control module; a turning handle, the turning handle being provided on one side of the throttle seat and being rotatable relative to the throttle seat, a trigger member provided on the turning handle, when the turning handle rotates to a first predetermined position, the trigger member contacts the first control member and generates a first control signal, and when the turning handle rotates in the opposite direction to a second predetermined position, the trigger member contacts the second control member and generates a second control signal. The present invention provides two control members for respectively controlling upshifting and downshifting on the control module, and when the turning handle rotates to the first predetermined position and the second predetermined position, it contacts one of the control members to generate a control signal and trigger one of the upshifting and downshifting operations. Compared with the wire-pulling device used in the existing throttle, the structure is simple and the gear shifting and speed change are accurate and efficient.

The utility model discloses electronic throttle valve pin shaft and bushing press in device, including frame, set up on the pin shaft press in mechanism and bushing press in mechanism of frame, the pin shaft press in mechanism includes setting up on the first fixture of frame and setting up on the first down pressure subassembly of frame, bushing press in mechanism includes setting up on the second fixture of frame, setting up on the second down pressure subassembly of frame and setting up on the material component of frame, material component and down pressure subassembly vertical correspondence. Advantage: can complete throttle housing and pin shaft and bushing's assembly fast, and can give a jacking force to the housing in the direction of being affected by the second down pressure subassembly to the bushing assembly process through material component, prevents the housing and appears loose and influences bushing press in, thereby improves the precision of bushing press in.

The utility model discloses surface treatment equipment for an automobile electronic throttle die-casting bottom plate piece, which belongs to the technical field of mechanical engineering and comprises a treatment frame and a circulating structure, a treatment barrel is connected onto the treatment frame, a stand column is rotatably connected into the treatment barrel, a workbench is fixedly connected to the upper end of the stand column, a motor is connected below the treatment barrel, and the circulating structure is arranged on the treatment barrel. And an anti-skid belt is in transmission connection with the exterior of the stand column, the circulating structure is connected with the treatment frame, and a lifting plate is slidably connected to the back face of the treatment frame. According to the device disclosed by the utility model, the positioning structure, the convex block, the expansion piece II, the filter ring and the fixed ring are arranged, and the filter ring and the fixed ring can realize a quick assembly function through the matching among a spring, an L-shaped groove and a clamping block, and the filter ring and the fixed ring are subjected to lifting treatment in the treatment barrel through the expansion piece II; the impurities on the surface of the filter ring can be treated in a centralized manner subsequently, so that the flexibility of the treatment device is guaranteed.

The invention is suitable for the technical field of electronic throttle valve plates, and particularly relates to an electronic throttle valve plate molded line optimization design method, device and equipment, and the method comprises the following steps: determining a curvature area to be optimized of a corresponding electronic throttle valve plate according to different working conditions of an engine; determining the incidence relation between the curvature parameters and the air flow parameters of the front and back sides of the electronic throttle valve sheet in the curvature area to be optimized; according to the first incidence relation and the second incidence relation, the curvature parameter of the to-be-optimized curvature area on the front face of the electronic throttle valve sheet is optimized; according to the third incidence relation and the fourth incidence relation, the curvature parameter of the to-be-optimized curvature area on the back face of the electronic throttle valve sheet is optimized; and according to the optimized curvature parameters of the front and back sides of the electronic throttle valve sheet, determining parameters of diversion trenches of the front and back sides of the electronic throttle valve sheet. Therefore, the method provided by the invention can solve the problems that the air inflow fluctuation is large when the opening degree of an existing electronic throttle valve sheet is small and the air flow is disordered when the opening degree is large.

1. Name of the designed product: electronic accelerator (for electric vehicles). 2. Use of the designed product: accelerator handle for motorcycles and electric vehicles. 3. Design points of the designed product: in shape. 4. Picture or photo that best indicates the design points: perspective view.

The invention discloses an electronic throttle surface shell assembly assembling device and assembling method.The electronic throttle surface shell assembly assembling device comprises a rack and further comprises a cover plate assembling mechanism, a buckle feeding mechanism and a buckle assembling mechanism which are arranged on the rack, and the cover plate assembling mechanism is used for assembling a cover plate and a shell; the buckle feeding mechanism is used for conveying a plurality of buckles to the position below the buckle assembling mechanism, and the buckle assembling mechanism is used for assembling the buckles on a shell body and a cover plate. The buckle assembling machine has the advantages that the multiple buckles are clamped from the buckle feeding mechanism at a time through the buckle assembling mechanism and then rapidly moved to the assembled cover plate and the shell body, the time for assembling the multiple buckles for several times is saved, and the working efficiency is improved.

The present application discloses an electronic throttle valve, an engine, and a vehicle. The electronic throttle valve comprises a valve body, a rotating shaft, a valve plate, and a heating assembly. The valve body is provided with an air inlet channel, the rotating shaft is rotatably connected to the valve body and at least a part of the rotating shaft is located in the air inlet channel, and the valve plate is arranged in the air inlet channel and connected to the rotating shaft. The heating assembly comprises a heating member, and the heating member is arranged on at least one of the valve body and the valve plate.

The utility model discloses an electronic throttle valve with a cooling system, which comprises an intelligent actuator and a throttle valve body, the throttle valve body comprises a valve seat, a valve shaft and a valve, the valve seat is provided with a valve hole for installing the valve, the valve is fixedly connected with the valve shaft, and the intelligent actuator controls the valve shaft to drive the valve to rotate by controlling a driving gear assembly. The intelligent actuator comprises an actuator shell, a first cooling system is arranged in the actuator shell, a second cooling system is arranged in the valve seat, the second cooling system comprises a valve seat upper cooling cavity and a valve seat lower cooling cavity, the valve seat upper cooling cavity is located above the valve hole, and the valve seat lower cooling cavity is located below the valve hole. And the valve seat upper cooling cavity is communicated with the valve seat lower cooling cavity through an external connecting pipe. According to the electronic throttle valve with the cooling system, the influence of a high-temperature environment on the electronic throttle valve can be greatly reduced, and faults of the electronic throttle valve caused by high temperature are avoided.

The utility model discloses an electronic throttle valve and belongs to the field of unmanned aerial vehicles. Comprising a throttle valve body, the throttle valve body comprises a throttle valve body, a driving motor and a transmission assembly, a butterfly piece is rotationally connected into a stepped hole of the throttle valve body through a throttle valve shaft, and the driving motor controls the rotating angles of the throttle valve shaft and the butterfly piece through the transmission assembly; the throttle valve further comprises an adjustable mechanical redundancy module, the adjustable mechanical redundancy module is connected with the transmission assembly, the driving motor serves as a driving component when the throttle valve body works normally, and the adjustable mechanical redundancy module serves as a driving component when the throttle valve body is in a fault state. When a motor fault or a sensor fault occurs, the position of the electronic throttle valve is controllable, so that normal work of an engine is guaranteed, and the reliability of the engine and even an unmanned aerial vehicle system is greatly improved.

The utility model discloses an automatic anti-escape and anti-collision device for drunk driving inspection, which relates to the technical field of road traffic safety law enforcement equipment and comprises a road surface sensing module, a drunk driving inspection module and a drunk driving inspection module, the road surface sensing module comprises a rubber pad arranged in a drunk driving inspection area, and a pressure sensor, a proximity sensor and a mobile signal emitter are fixedly connected in the rubber pad; the vehicle-mounted signal receiving module comprises a signal receiver, is mounted in the vehicle and is connected with the vehicle ECU; the throttle valve executing mechanism comprises an electronic throttle valve body, a throttle valve plate and a driving motor arranged in front of the throttle valve plate are installed in a throttle valve body of the electronic throttle valve body, the output end of the driving motor is provided with a limiting component and a control circuit, and the limiting component is arranged at the axis position of a rotating shaft of the throttle valve plate; according to the technical scheme, the throttle valve plate can be blocked only by controlling the driving motor to drive the limiting component to limit rotation of the throttle valve plate, and therefore behaviors such as sudden acceleration of a vehicle are limited.

The utility model is applicable to the technical field of electronic throttle valves, and particularly relates to an integrated valve core of an electronic throttle valve, which comprises a plastic valve body, the surface of the plastic valve body is connected with an upper end cover, a torsion spring is arranged in the upper end cover, and a plug is arranged on one side of the outer side of the plastic valve body. A driving assembly is arranged in the plastic valve body and the upper end cover, and a first shaft sleeve and a second shaft sleeve are arranged on the two sides of the interior of the plastic valve body correspondingly. The first valve rod, the second valve rod, the connecting sleeve, the inserting block and the valve plate are made of composite plastic materials, and the problems that a traditional metal material is generally large in weight, poor in corrosion resistance, complex in machining and the like in a valve element assembly are successfully solved. The composite plastic material not only greatly reduces the weight of the valve core and further improves the working efficiency of the whole device, but also has excellent wear resistance, high temperature resistance and corrosion resistance, and obviously prolongs the service life of the product.

Disclosed in the present application are an electronic throttle test method and apparatus, a controller, and a storage medium. The method comprises: if it is detected that a first preset condition for a return spring test is met, testing a return spring to obtain a return spring test result and, if the return spring test result is successful, configuring a return spring flag bit, the return spring flag bit being configured to represent that the return spring test has been completed; after the return spring flag bit has been detected, determining whether an electronic throttle has reached a lower mechanical stop; and, if so, detecting the limp-home position of the electronic throttle and, if the detection has passed, generating an electronic throttle test result.

The invention relates to the technical field of automobile part machining equipment, and discloses press-fitting equipment for electronic throttle body shaft machining. The press-fitting equipment comprises a machine body, a first fixing plate is fixedly connected to the interior of the machine body, a motor is fixedly connected to the upper portion of the first fixing plate, and the output end of the motor is fixedly connected with a rotating disc; the periphery of the bottom of the rotating disc is rotationally connected with one ends of movable plates, the other ends of the multiple movable plates are rotationally connected with first connecting plates, the bottoms of the multiple first connecting plates are fixedly connected with second connecting plates, and the opposite sides of the multiple second connecting plates are fixedly connected with movable plates; the opposite sides of the multiple movable plates are fixedly connected with clamping pieces correspondingly, and the upper portions of the multiple movable plates are fixedly connected with first electric push rods correspondingly. According to the electronic throttle body press-fitting device, by arranging a precise cooperative clamping mechanism, the positioning precision and stability of the electronic throttle body in the press-fitting process are remarkably improved.

A control method and system for constant-speed rotation of a tank body of a concrete mixing truck belong to the technical field of control of concrete mixing transport equipment, and the method comprises the following steps: collecting the rotation speed of the tank body, change data of an electronic throttle, the working pressure of a hydraulic system, the concrete material level and the running speed of the truck; parameters of a PID algorithm are corrected based on electronic throttle change data, and correction factors are set in combination with the working pressure of a hydraulic system, the concrete material level and the vehicle running speed; the corrected PID algorithm judges the working condition according to the change data of the electronic throttle and the rotating speed of the tank body, in the acceleration working condition, the load increasing trend of the hydraulic system is pre-judged in advance, and the adjusting amount of the displacement of the hydraulic pump is increased; when the rising value of the rotating speed of the tank body is larger than a preset threshold value, adjusting intervention is conducted in advance; and the hydraulic driving system is controlled according to the adjusting instruction, and the adjusted rotating speed of the tank body is fed back. The rotating speed control precision of the tank body is improved, and the concrete rejection rate is reduced.

The utility model discloses an electronic accelerator pedal with a side mounting seat, which relates to the technical field of electronic accelerator pedals, and comprises a base and a second mounting seat, the side wall of the base is provided with a mounting cavity, a pedal body is movably mounted in the mounting cavity, and the side wall of the base is fixedly connected with a first mounting seat. A first mounting groove is formed in the first mounting base, three second mounting grooves are evenly formed in the upper end and the lower end of the first mounting base, third mounting grooves are formed in the two inner side walls of each second mounting groove, a containing groove is formed in the side wall of the first mounting base, and a threaded column is movably connected into the containing groove. The pedal body and the second mounting seat are quickly fixed and mounted, the position of the pedal body can be adjusted according to specific use requirements, so that a user can tread the pedal in a most comfortable manner, the position of the pedal is flexibly adjusted, the use comfort is improved, foot fatigue and discomfort caused by long-time driving are reduced, and the user experience is improved. And the driving safety is enhanced.

The application relates to the technical field of electronic accelerator pedals, and discloses a new-energy vehicle electronic accelerator pedal, which comprises a pedal arm, one end of the pedal arm is fixedly connected with a pedal, the other end of the pedal arm is fixedly connected with a rotating shaft, the two ends of the rotating shaft are both rotationally connected with side plates, the outer wall of one side of each side plate is fixedly connected with a fixing seat and a shell, and the new-energy vehicle electronic accelerator pedal further comprises a variable resistance assembly used for controlling the size of the new-energy vehicle accelerator, the variable resistance assembly comprises a horizontal plate fixedly connected to the outer wall of one side of each side plate, and the outer wall of one side of the horizontal plate is provided with two groups of variable resistance pieces. The new-energy vehicle electronic accelerator pedal adopts a pure mechanical overload brake-off design, when the high-frequency pedaling leads to the angular velocity of the rotating shaft exceeding a threshold value, the centrifugal force of the counterweight triggers a gear transmission chain to make a lifting ring plate lift a horizontal rod, so that a contact and a resistance film are separated to cut off an accelerator signal. The structure does not need power, can still work reliably under extreme working conditions such as vehicle electronic system failure, and can avoid the risk of "flying car".

The utility model provides an electronic throttle valve body which comprises a throttle valve shell and a throttle valve piece used for driving a throttle valve shaft to rotate, and a rotating shaft driving mechanism used for driving the throttle valve shaft to rotate is arranged in the shell. The rotating shaft driving mechanism comprises a direct-current motor, a motor gear, an intermediate gear, a sector gear assembly, a magnetic core assembly and a torsion spring, the direct-current motor is installed on one side of the throttle body, the motor gear is installed on an output shaft of the direct-current motor, the intermediate gear is rotatably installed on the throttle shell and meshed with the motor gear, and the sector gear assembly is connected with the magnetic core assembly. The sector gear is connected to the end of the throttle valve shaft through laser welding, the sector gear is meshed with the intermediate gear, the torsion spring is arranged on the sector gear in a sleeved mode, and the two ends of the torsion spring are fixed to sector gear limiting supporting legs. The electronic throttle valve body has the advantages of being simple in structure, low in cost, good in consistency of flow of a lower dead center of an assembly machine and flow of a default position, and capable of greatly improving reliability and stability of the electronic throttle valve body.

The utility model discloses a reset mechanism for an electronic throttle body. The reset mechanism comprises a reset gear, a throttle shaft, a valve plate, a first reset spring, a second reset spring, an upper spring seat, a lower spring seat, a first stop part and a second stop part, wherein the two ends of the first reset spring are provided with a first torsion arm and a second torsion arm respectively; the two ends of the second reset spring are provided with a third torsion arm and a fourth torsion arm respectively; the upper spring seat and the lower spring seat are sleeved outside the throttle valve shaft; a second reset spring is sleeved between the outer wall of the lower spring seat and the inner wall of the upper spring seat; the outer wall of the upper spring seat is sleeved with the first reset spring. The reset gear is provided with a first supporting foot, a second supporting foot and a torsion arm limiting hole. When the valve plate is located at the emergency point position, the first torsion arm abuts against the first supporting foot and the second stopping part at the same time, the second torsion arm abuts against the second supporting foot, the third torsion arm is arranged in the torsion arm limiting hole and abuts against the side wall of the torsion arm limiting hole, and the fourth torsion arm abuts against the first stopping part. The reset mechanism provided by the utility model is high in reset precision.

The utility model provides an automobile suspension type electronic accelerator pedal with a hysteresis mechanism, which comprises a pedal connecting rod, a rotating shaft, a bushing, a base, a spring seat, a reset spring, a friction block, a magnetic block component, a swing rod pin and an electronic box, the middle of the spring seat is fixed to the tail of the base in a hinged mode, one end of the reset spring is fixed in a groove in the tail end of the spring seat, and the other end of the reset spring is fixed in a groove in the middle of the pedal connecting rod. The spring seat is a lever mechanism, friction noise and abrasion of the friction block are small, automatic compensation can be achieved even if the friction block is abraded, influence on hysteresis force is small, and durability of products is improved. And the metal rotating shaft and the bushing are adopted, so that the deformation of the rotating shaft under radial pressure is small, and the influence on hysteresis force is small. And the radial stress of the magnetic block assembly is very small, so that the stability of signal output is ensured. The delaying mechanism is simple and reliable in structure and convenient to assemble and disassemble.