468 results about "Torque converter" patented technology

The invention relates to the technical field of torque converters, in particular to a hydrodynamic transmission power chain optimization method and system.The method comprises the steps that a hydrodynamic torque converter parameterized geometric model is built, and a pump impeller blade outflow angle, a guide wheel runner input / output angle, turbine blade geometric parameters and the relative position of a pump impeller and a turbine are set as design variables; based on CFD three-dimensional flow field simulation, a k-epsilon model is adopted for rapid analysis, an SST model is adopted for transient simulation, and simulation data under different variable combinations are obtained; training a BP neural network by using the simulation data, inputting each design variable, and constructing a multi-target optimization model with maximization of efficiency and minimization of noise as targets; a design variable combination is selected in the Pareto optimal solution set, a model is reconstructed, and an optimized hydraulic torque converter is obtained; according to the method, the problems that the design optimization efficiency of the hydraulic torque converter is low, the parameter adjusting period is long, and good compromise between the transmission efficiency and noise suppression is difficult to obtain can be solved.

The invention relates to the technical field of hydraulic mechanical transmission, in particular to a hydraulic torque converter assembly, a vehicle and a control method. The hydraulic torque converter assembly comprises a hydraulic torque converter, a pressure adjusting assembly and a rotating direction adjusting assembly, wherein the hydraulic torque converter is provided with an output shaft; the pressure adjusting assembly is connected to an oil inlet of the hydraulic torque converter and used for adjusting the pressure of the oil inlet of the hydraulic torque converter. The rotating direction adjusting assembly is connected with the output shaft and used for changing the rotating direction of the output shaft. When a vehicle goes down a long slope, the rotation direction of the output shaft is changed through the rotation direction adjusting assembly, the requirement for long-time retarding braking of the vehicle is met through the reverse rotation characteristic of the torque converter, compared with traditional reverse transmission braking, higher braking torque can be provided, and due to the fact that the pressure of an oil inlet of the hydraulic torque converter is adjustable, automatic adjustment can be conducted according to different braking torque requirements; and different slope requirements when the vehicle goes down a long slope working condition are met.

The invention discloses a wet clutch of a hydraulic mechanical transmission for a vehicle and the vehicle, and belongs to the technical field of vehicle clutches, the wet clutch comprises a turbine shaft, the left end of the turbine shaft can be connected to a hydraulic torque converter, the right end of the turbine shaft is provided with a transmission part, the transmission part can be connected to a mechanical gearbox, and the transmission part comprises a clutch outer hub; the clutch outer hub is connected to the turbine shaft in a sleeving mode, and a piston, a friction plate, a dual plate and an output gear are sequentially arranged on the clutch outer hub in the transmission direction. The piston can be controlled by oil pressure to move rightwards so as to press the dual plate and the friction plate; the piston is further provided with a spring set, and the spring set is used for resetting the piston. The wet clutch is provided with a lubricating system and an oil pressure system, and the oil pressure system is provided with a proportional electromagnetic valve. A dry clutch can be replaced at the same position, the axial size is smaller than that of the dry clutch, the chassis space is saved, the torque requirement within a certain range is met, the cost is reduced, gear shifting is more stable and smooth, and the driving experience is improved.

The invention relates to the technical field of static or dynamic balance testing of machines or structural parts, and provides a testing method and device and a computer readable storage medium. The testing method comprises the steps that a pump wheel of a hydraulic torque converter is driven to rotate at a first rotating speed, and a turbine of the hydraulic torque converter is driven to rotate at a second rotating speed; and after the hydraulic torque converter rotates for a preset time, vibration information of the hydraulic torque converter is obtained and processed, processed vibration information is obtained, and test result information of the dynamic balance test of the hydraulic torque converter is output according to the first rotating speed, the second rotating speed and the processed vibration information. According to the test method, the actual working condition of the hydraulic torque converter can be simulated more truly, so that the test precision is improved, the test result of the dynamic balance test can be directly output according to the first rotating speed, the second rotating speed and the processed vibration information, and the test result can be conveniently and quickly obtained.

The invention discloses an engine multi-vehicle-type adaptive NVH quality optimization method and system, and belongs to the technical field of automobile engine debugge.The method comprises the steps that after an engine is installed on a to-be-adapted vehicle, vehicle working condition data are collected in real time, the vehicle working condition data comprises a vehicle speed, an accelerator opening degree, an engine rotating speed, a gear, a hydraulic torque converter locking state and an engine oil temperature signal; the vehicle working condition data is compared with the working condition of the engine noise sensitive working condition, and whether the engine noise sensitive working condition is entered or not is recognized; when the engine has the noise sensitive working condition, an NVH control strategy embedded in an engine electronic control unit is activated; the NVH control strategy comprises adjustment of an engine ignition angle and oil injection parameters; the engine is controlled according to the ignition angle optimization control instruction and the oil injection parameter optimization instruction; and when the vehicle runs out of the working condition of the noise sensitive working condition of the engine or gear shifting is completed, the conventional combustion control logic is recovered. And the rising rate of the pressure in the cylinder is effectively reduced, so that the structural knocking noise within the range of 150-600Hz is inhibited.

A feedforward control method for an electrified powertrain including a torque transfer device arranged between an electric motor and a transmission includes monitoring a set of operating parameters of the electrified powertrain, determining a desired input speed for the torque transfer device based on the set of operating parameters, determining a desired input torque for the torque transfer device based on a characteristics model or map of the torque transfer device and the desired input speed, performing an observer-based determination of a final feedforward torque for the torque transfer device based on the desired input speed, the desired input torque, a filtered actuator achieved torque for the electric motor, and minimum and maximum torque limits for the transmission, and controlling the electric motor based on the final feedforward torque for the torque transfer device.

The invention discloses a high-power petroleum fracturing truck transmission system which comprises a torque converter and a gearbox which are integrated, and the gearbox is of a fixed shaft and planet structure. The torque converter comprises a shell a, a torque conversion mechanism is arranged in the shell a, and the torque conversion mechanism is connected with an input assembly; the gearbox comprises a shell b, the shell b is fixedly connected with the shell a, a parallel shaft transmission system in transmission connection with the output end of the torque conversion mechanism and a planet wheel transmission system in transmission connection with the output end of the parallel shaft transmission system are arranged in the shell b, and the output end of the planet wheel transmission system is connected with the output assembly; the gear of the parallel shaft transmission system is three, the gear of the planet wheel transmission system is three, and the gear of the parallel shaft transmission system is nine. The advantages of fixed shaft transmission and planetary transmission are combined, balance is carried out, the reliability is high, meanwhile, the weight can be reduced, and the transmitted torque can be improved. And the torque converter and the gearbox are integrally arranged, so that the overall size is reduced, and the mounting space is saved.

The invention discloses a virtual fuel vehicle power assembly mapping method and system. The method comprises the steps that the vehicle speed of an electric vehicle and input signals of an accelerator pedal and a brake pedal are received; performing nonlinear mapping on the accelerator pedal input signal to generate a virtual accelerator opening degree, and performing cooperative control in combination with a brake pedal signal; based on the vehicle speed and the virtual accelerator opening degree, a virtual target gear is determined through a multi-dimensional gear shifting diagram and a self-adaptive gear shifting strategy; the method is characterized in that a dynamic slip frequency factor related to the vehicle speed, the virtual accelerator opening degree and the brake pedal opening degree is introduced in the non-gear-shifting state so as to simulate the slip frequency effect of a torque converter; in the gear shifting state, transient smooth transition of the rotating speed is simulated. According to the method, the nonlinear dynamic behavior of the fuel vehicle can be accurately simulated in real time with low calculation overhead, the authenticity and immersion of simulation are remarkably improved, and powerful support is provided for virtual testing, control system development and man-machine interaction application.

The present invention provides a collaborative robot that allows for easy attachment and detachment of the fifth-axis motor and torque converter from the upper arm. [Solution] The output shaft 512 of the fifth-axis motor 51, which rotates the support arm 16 of the collaborative robot 1 around the fifth axis A5, is positioned along the fourth axis A4. Inside the upper arm 15 of the collaborative robot 1, the fifth-axis motor 51 and a torque converter 53 that converts the torque of the output shaft 512 into torque around the fifth axis A5 are housed. The upper arm 15 is a cylindrical housing and has an arm body 151 with an opening 2 for mounting the fifth-axis motor 51 and the torque converter 53, and a cover 152 that covers the opening 2 and is attached to the arm body 151. When viewed from a direction along the fifth axis A5, the fifth-axis motor 51 and the torque converter 53 are housed in the internal region within the opening edge 20 of the opening 2.

A torque converter includes a lock-up device, an urging member, a cover, an impeller, a turbine, a first hydraulic chamber, and a second hydraulic chamber. The lock-up device includes a clutch part and a piston. The urging member urges the piston toward the clutch part. A first oil pathway communicates with the first hydraulic chamber. A second oil pathway communicates with the second hydraulic chamber. A switch is provided. In a first switch position, hydraulic oil is supplied to the first hydraulic chamber through the first oil pathway. In a second switch position, hydraulic oil is supplied to the second hydraulic chamber through the second oil pathway. The piston presses the clutch part when the hydraulic oil is supplied to an interior of the first hydraulic chamber. The piston releases the clutch part when the hydraulic oil is supplied to an interior of the second hydraulic chamber.

The invention discloses a method, a device and equipment for processing clamping stagnation of a hydraulic control loop of a hydraulic torque converter. The method, the device and the equipment are used for realizing self-cleaning of clamping stagnation of the hydraulic control loop of the hydraulic torque converter. The method comprises the steps that vehicle gear information, the vehicle speed, the engine rotating speed and the turbine rotating speed are obtained; when the vehicle gear information, the vehicle speed, the engine rotating speed and the turbine rotating speed meet the target conditions, it is determined that the hydraulic torque converter hydraulic control loop is in a clamping stagnation state; and when the hydraulic control loop of the hydraulic torque converter is in a clamping stagnation state, the hydraulic torque converter is controlled to control the current of the electromagnetic valve to change in a pulse form.

A method for assembling a pilot into a torque converter housing is provided, comprising: (a) providing the pilot having an annular flange in a mating region; (b) forming a torque converter housing with a complementary recess or annular groove in the annular flange in a mating connection region; (c) positioning the pilot in the torque converter housing with the annular flange at least partially engaged in the complementary recess or annular groove; and (d) applying force and energy to the pilot to weld it to the torque converter housing. A torque converter assembly is also provided.

The present invention relates to a torque converter mechanical stop damper that has a simplified manufacturing process and prevents the outer springs from reaching their solid length. To achieve this, a torque converter mechanical stop damper is implemented comprising a drive plate; at least one outer spring; and a driven plate, wherein the driven plate further comprises at least one mechanical stop configured to contact the drive plate when the drive plate compresses each outer spring, and each mechanical stop is positioned to prevent each outer spring from reaching its solid length.

To provide a hybrid vehicle with improved responsiveness in recovering from fuel cut-off. [Solution] The system comprises an engine, a filter for collecting exhaust particulate matter from the engine, a motor provided on a power transmission path between the engine and the drive wheels, a torque converter having a lock-up clutch provided on the power transmission path between the motor and the drive wheels, and a control device, wherein the control device includes a determination unit that determines whether there is a request to return from fuel cut-off in the engine based on accelerator input while performing auxiliary regeneration control in which the motor assists the rotation of the engine while releasing the lock-up clutch to regenerate the filter by cutting off fuel in the engine, and an auxiliary return control unit that, if the determination unit makes an affirmative determination, restarts fuel injection in the engine with the lock-up clutch released and assists the rotation of the engine with the motor.

The invention discloses a punching device and method for a high-precision hydraulic torque converter cover plate, and the punching device comprises a lower die assembly which comprises a lower die barrel, a buffer barrel, a sealing plate and a telescopic unit, the barrel bottom of the lower die barrel is provided with a positioning part and a supporting part, the supporting part is provided with a through hole, and the buffer barrel is provided with a communicating hole; the upper die assembly comprises an upper pressing pipe, a punching rod and a punching unit, and the outer diameter of the punching rod is smaller than or equal to the inner diameter of the corresponding through hole. According to the punching device and method for the high-precision hydraulic torque converter cover plate, after a blank is supported, positioned, locked and fixed, the telescopic unit drives the sealing plate to move upwards, so that after the amount of fine sand in the lower die barrel is increased, the contact area between the fine sand and the lower surface of the blank is increased, and therefore stable supporting of the fine sand is achieved; the deformation of the blank during punching is reduced, and the punching precision is improved, so that the product quality is favorably improved.

A method for controlling a torque output of a hybrid power machine, comprising the following: during a temporary increase in torque in response to a change in the target output torque of a powertrain (200), setting a power machine output torque and a motor output torque in response to a change in the target output torque of the powertrain (200), Adjusting the motor output torque in response to a response to a speed of a drive wheel (285) of a torque converter (206), characterized by Adjusting the power machine output torque for a power machine torque error in response to the settings of a motor torque.

This utility model provides a positioning device for improving the transmission accuracy of a torque converter assembly, belonging to the field of mechanical engineering technology. It includes a mounting mechanism and a mounting component. The mounting component has a chassis and a mounting groove formed on the chassis. The torque converter assembly is detachably mounted in the mounting groove. The positioning mechanism includes a drive component and a limiting component. This utility model, through improved structural design of the positioning device, effectively solves the problems of low positioning accuracy, unstable clamping, and easy damage to the workpiece surface in traditional torque converter assembly positioning methods. It adopts a flexible protection mechanism combining an elastic contact surface and a buffer pad layer, which not only improves clamping stability but also reduces the risk of wear on the torque converter assembly surface. Simultaneously, by using a knob to drive the limiting component, it achieves simultaneous improvement in operational convenience and positioning accuracy, effectively ensuring the transmission performance and service life of the torque converter assembly and meeting the needs of high-precision assembly and efficient production.

The utility model discloses a kind of compactor winch mechanism driven by motor, belong to compactor device technical field.A kind of compactor winch mechanism driven by motor, including reel, further include: motor, the output end of the motor is fixedly connected with torque converter;Planetary reducer, with the output end of torque converter fixed connection, and the planetary reducer is installed in reel;Normally open inner expansion clutch, is installed on the output end of planetary reducer;The utility model drives combination by motor plus torque converter, and working efficiency is higher;Motor is more easily accurate control, conducive to the intelligent development of compactor;Energy conservation and emission reduction, green environmental protection;Motor structure is simple, easy to install and refit.

A torque converter, which may be found in an automotive transmission, is provided. In some examples, the torque converter includes a shell that extends about an axis of rotation, a core that extends about the axis of rotation, and a plurality of curved blades that extend contactedly from the shell to the core. At least one blade of the plurality of curved blades may include a non-ruled surface. The at least one blade of the plurality of curved blades may narrow as it extends from the shell to the core.

A hydrodynamic-mechanical power transmission device includes: an input shaft; an output shaft; a basic transmission configuration including a hydrodynamic converter and a superimposition transmission, the hydrodynamic converter including a pump impeller and a turbine wheel, the superimposition transmission being formed as a planetary transmission including a ring gear, a first sun gear, and a planet carrier with a plurality of planetary gears, the input shaft being connected to the pump impeller and the ring gear, the turbine wheel being connected to the first sun gear, the output shaft being connected at least indirectly to the planet carrier; and an additional transmission stage, which is arranged in a direction of a power transmission between the superimposition transmission and the output shaft, the additional transmission stage including an input and an output, the input being connected to the planet carrier, the output being connected to or forming the output shaft.

To provide an air conditioning system for electric vehicles that does not require a fuel tank. [Solution] The air conditioning unit 38 of the electric vehicle 12 is equipped with a heat generation control unit 84 that, when there is a heat generation demand, drives the second electric motor MG2 with the lock-up clutch 20 released, thereby raising the temperature of the fluid that transmits power in the torque converter 22 and using it as a heat source for the air conditioning unit 38. This provides an air conditioning unit 38 for the electric vehicle 12 that heats up quickly and provides sufficient heating performance.

The invention belongs to the field of hydraulic torque converters, and particularly relates to a CVT (continuously variable transmission) hydraulic torque converter with a projection welding energy gathering ring structure. The hydraulic torque converter comprises a cover wheel hub and a cover wheel shell. An energy gathering ring is arranged on the end face of one end of the cover hub; the end face of one end of the cover hub is further provided with two molten pool grooves. The two molten pool grooves are annular grooves and are oppositely formed in the inner ring and the outer ring of the energy gathering ring on the hub cover; the sides, close to each other, of the two molten pool grooves are connected with the inner ring and the outer ring of the energy gathering ring correspondingly. Gaps are respectively formed between the inner side edge and the outer side edge of the end surface of one end of the cover hub and the other sides of the two molten pool tanks, and the end surface of one end of the cover hub is positioned at the gaps to serve as a supporting surface. According to the invention, the energy-gathering ring is innovatively designed, the bottom supporting surface is increased, and meanwhile, the melting tank is designed at the root part, so that the deflection phenomenon in the welding process is avoided, the form and location tolerance requirements of the perpendicularity and the coaxiality after the hub is welded are met, meanwhile, the welding strength requirement is met, and the welding qualification rate is improved.

The present application relates to the technical field of automatic transmissions, and in particular to a calibration control method and device for an automatic transmission, a vehicle, a medium, and a program. The method comprises: acquiring a basic shift point table and a slope compensation shift point table of an automatic transmission; acquiring a target shift action that requires raising a shift point when a road surface slope exceeds a slope threshold, and calibrating and optimizing the slope compensation shift point table on the basis of the slope threshold, wherein a compensation value that requires raising the shift point and corresponds to the target shift action in the calibrated and optimized slope compensation shift point table is greater than a compensation value before calibration and optimization; and determining a target shift point on the basis of the basic shift point table and the calibrated and optimized slope compensation shift point table, so as to control the automatic transmission to execute the target shift action. In this way, the problem that, when a vehicle equipped with the automatic transmission travels uphill under conditions with many curves, steep slopes, and long distances, continuous oil churning by a torque converter pump leads to transmission overheating, which triggers torque-limiting protection and results in a loss of drivability, is solved.

A torque control system and method for a vehicle include a control system configured to calculate a driver demand torque based on a speed of the vehicle and a driver torque request, predict a net driver demand torque based on the calculated driver demand torque and an opposing net torque for a road that the vehicle is traversing, estimate a turbine speed based on measured turbine and wheel speeds and a lumped vehicle inertia state space model with an observer correction algorithm, calculate a target actuator torque based on the calculated driver demand torque and the estimated turbine speed, and control at least one of an engine and an electric motor of the propulsion system based on the calculated target actuator torque.

The present disclosure relates to a hydraulic torque converter, which includes: a housing for receiving input torque; a pump wheel, which is integrated with the housing and can rotate around a rotation axis; a turbine, which can rotate around the rotation axis, the turbine is arranged axially opposite to the pump wheel and can be hydraulically driven by the pump wheel, and the turbine includes a turbine housing and a plurality of turbine blades; a vibration damper, which includes a driving plate, a driven plate and a plurality of elastic members between the driving plate and the driven plate; an output hub, which can rotate around the rotation axis and is connected to the turbine housing and the driven plate of the vibration damper for outputting torque; the turbine housing and the driven plate are mounted to the output hub by rivets, wherein the output hub includes a first centering surface for the driven plate, the first centering surface is an axially extending surface, and the driven plate includes a second centering surface that cooperates with the first centering surface.

An assembly for transmitting rotational torque between an output of a drive engine and a transmission input of a transmission includes a torque converter and a clutch assembly. The torque converter includes a rotatable torque converter input member and a torque converter output member. The torque converter output member is configured to transmit rotational torque to the transmission input. The clutch assembly includes a decoupling clutch having an engaged position and a disengaged position. The clutch assembly further includes a clutch housing that rotatably couples the clutch input member to the torque converter input member when the decoupling clutch is in the engaged position. One of the clutch housing and the torque converter input member includes a retention slot and the other of the clutch housing and the torque converter input member includes a retention post that is disposable in the retention slot to axially retain the clutch assembly.

The application provides a hydraulic torque converter control method and device, and belongs to the field of automobile gearbox control. When current vehicle parameters meet preset conditions, especially when the current vehicle speed is within a preset vehicle speed range, the clutch in the hydraulic torque converter is controlled to switch to a sliding friction state, that is, a semi-linked state. In this state, the engine can stop fuel injection, and the engine can also be prevented from stalling due to low wheel speed dragging the engine or the engine losing connection with the wheels. In summary, the engine can continue to be fuel cut on the basis of avoiding engine stall, the fuel cut time is prolonged, and oil consumption is further reduced.

The present invention discloses an automatic assembly process for a hydraulic torque converter, which relates to the technical field of mechanical assembly. The process includes a feeding step, a clamping and oil control step, a moving and buffering step, a square key adjustment step, a scanning and clamping step, and an assembling step. The hydraulic torque converter is placed with its shaft head facing down on a tray, and the tray drives the hydraulic torque converter to run to the feeding station. The clamping jaw of the transfer manipulator is controlled to clamp the hydraulic torque converter above the oil receiving tray, and the hydraulic torque converter is rotated 180° for oil control. The hydraulic torque converter is placed with its shaft head facing down on the tray, which is consistent with the incoming packaging direction of the hydraulic torque converter, avoiding manual flipping of the hydraulic torque converter and reducing the labor intensity of the operator. The oil receiving tray prevents oil from dripping to the ground, and at the same time, the oil receiving tray can collect and filter the oil for reuse, reducing the cost of the transmission oil. When the hydraulic torque converter is loaded onto the production line, the tray is used, with the direction being the shaft head facing down and the oil port facing up, avoiding the situation of oil dripping downward with the traditional assembly oil port direction and reducing potential safety hazards.

A compact P2 hybrid module for connecting an internal combustion engine to a transmission of a vehicle. The P2 module includes an input shaft, an electric motor having a stator and a rotor, a torque converter having a front cover and a rear cover. The torque converter further including an impeller and a turbine coupled to one another so as to form a hydrodynamic circuit, and the turbine being further coupled to an output member of the torque converter. The front cover of the torque converter being rotationally fixed with the rotor of the electric motor. An electric connect / disconnect friction clutch assembly having first and second sets of friction plates. The first and second sets of friction plates being rotationally lockable with one another during engagement of the electric connect / disconnect friction clutch assembly. An electro-mechanical controllable clutch assembly having an input member and an output member.