205results about How to "Torque stabilization" patented technology

A transmission device for converting a torque from rotary to linear movement includes a rack having a plurality of teeth and a pinion having rollers which mesh with the teeth of the rack, with pressurization provided therebetween. The rack has an arcuate tooth flank diametrically greater than each of the rollers of the pinion. The rack also has a tooth face which has an approach profile progressively moving away from the path of contact of each of the rollers along which each of the rollers would otherwise engage with the tooth face. A plurality of each of the rollers of the pinion concurrently mesh with the corresponding teeth of the rack. Another embodiment converts a torque between rotary and linear movement and comprises a pinion having a plurality of teeth and a rack having a plurality of rollers to mesh with the teeth of the pinion. The device achieves reduced transmission resistance, a silent intermeshing movement with no substantial noise and vibration, as well as reduced wear on the teeth and rollers.

The invention provides a method for controlling oil filling of clutches of an automatic double-clutch gearbox. The method comprises the step of filling oil in advance, wherein the clutches are filled with the oil in advance after pre-shifting of a target gear is finished, and the preset time is maintained; the step of filling the oil for the second time, wherein the clutches of the target gear are filled with the oil for the second time until linkage point pressure is reached; the step of maintaining the linkage point pressure, wherein the linkage point pressure of the clutches of the target gear is maintained until torque is alternated. In the step of filling the oil in advance, the current oil temperature of the gearbox is measured, and filling the oil in advance is carried out according to the current oil temperature of the gearbox. The temperature change of the oil in the gearbox is utilized for controlling the clutch oil filling process, and therefore timeliness and smoothness of clutch motions in the shifting process can be improved, and the fault rate of the automatic wet type double-clutch gearbox can be lowered.

Methods and systems are provided for controlling a vehicle system including an engine that is selectively deactivated during engine idle-stop conditions and selectively reactivated during engine restart conditions. One example method comprises, during an engine restart from an idle stop, performing a first combustion event in a cylinder with a piston at an engine crankshaft position that is after a crankshaft position at which said cylinder's exhaust valve opens, and before a crankshaft position at which the cylinder's intake valve closes, during a cycle of said cylinder.

A rotary electric machine includes a stator and a rotor. The rotor has at least one permanent magnet arranged in a d-axis magnetic path. The rotor includes a magnetic gap part located between the permanent magnet arranged in the d-axis magnetic path of one pole and an adjacent magnet with a different polarity, such that a d-axis magnetic flux forms a d-axis bypass passing through an area other than the permanent magnet. The d-axis bypass provides a magnetic resistance in a d-axis direction that is set below a magnetic resistance in a q-axis direction that is orthogonal to the d-axis resistance.

A Wing In Ground Effect Vehicle has a pair of supercavitating endplates (17) which extend below the fuselage (2) such that they can be immersed in water during flight thereover. The endplates have a nose (28) defining a leading edge (20) and adapted to generate a supercavity. The endplates (17) typically pivot about a pivot axis P to provide a stabilising weathercock-type effect.

The present invention belongs to the technical field of tool fixtures and particularly relates to a motor stator fixture which comprises a stator bracket, a rotation seat at the bottom of the stator bracket. The bottom of the rotation seat is provided with a bracket seat which is rotatingly connected to the rotation seat. The bottom of the bracket seat is provided with a driving device which controls the lifting of the bracket seat. The driving device is fixed to the sliding plate of the bottom of the bracket seat. The bottom of the sliding plate is provided with a sliding rail which is matched with the sliding plate. Multiple uniformly distributed lifting support shafts are vertically arranged between the bracket seat and the sliding plate. The sliding plate is provided with locking position machanisms which lock the lifting support shafts corresponding to the lifting support shafts. The stator bracket comprises two opposite support plates, and multiple magnetic rollers are arranged in a curved way between the support plates. The magnetic rollers are provided with wrenches for controlling magnetic force. The structure is simple, the operation difficulty of clamping a motor stator is reduced, the efficiency is improved greatly, the adjustment performance is good, and the adjustment is flexible.

Embodiments of the invention provide an engine torque control method and device. The engine torque control method comprises the steps that a current driving condition type of a vehicle is first obtained through analysis according to operating parameters of the vehicle, and then a corresponding relationship between the various preset driving condition types and torque control strategies is used forgetting the torque control strategy corresponding to the current driving condition type, the required torque of an engine is calculated, and then the torque of the engine is adjusted. The adaptability of the vehicle under complex and changing driving conditions is improved, the fuel saving effect of the vehicle is improved. further, when the vehicle operating state meets the preset conditions andenters the throttle fixing mode, the required torque of the engine can be kept at a fixed value to ensure that the engine torque remains stable, and the fuel saving effect of the vehicle can be further improved; and through the cooperation of an overtaking mode and a torque limiting mode, the economy and power of the vehicle are comprehensively guaranteed.

A turbocharger with a two-stage supercharging function relates to the technical field of turbocharger equipment of internal combustion engines of passenger motor vehicles and comprises a high-pressure turbocharger and a low-pressure turbocharger. An air channel which is communicated with a high-pressure turbine air inlet and a low-pressure turbine air inlet is arranged on a body of a high-pressure turbine shell, a flow control valve which is used for controlling airflow in the air channel is mounted on the air channel, a low-pressure turbine shell is integrally connected with the high-pressure turbine shell, and the low-pressure turbine air inlet is connected with a high-pressure turbine exhaust opening. The turbocharger with the two-stage supercharging function not only solves the conflict between high torque of a passenger motor vehicle an engine at a low rotation speed and maximization of power at a high rotation speed, but also is compact in structure, small in occupied space, fine in sealing performance, high in operational reliability and simple and convenient in production and installation, and has a high service value when used on passenger motor vehicles and the like with narrow engine spaces.

A brushless motor (80) for an electric power steering device (1) that assists a steering operation includes: a stator (30) having a plurality of winding sets (801,802) for a plurality of systems respectively; and a rotator (40) having a ferrite magnet (43). In the motor, a maximum current flowing without any demagnetization at high temperature is large. Hence, the torque of the motor is easily ensured at high temperature. In particular, when a failure occurs in one system, it is easy to ensure the torque of the normal system even at high temperature.

The invention discloses a method for controlling the displacement of an air condition compressor of an automobile. According to the method, a compressor slow start program, the minimum displacement, the maximum displacement and a compressor displacement recovery program can be applied to the air condition compressor of the automobile according to different speeds of the automobile, and therefore the displacement of the air condition compressor of the automobile can be adjusted according to running conditions of the automobile in time, the utilization efficiency of the compressor is improved, and it is also guaranteed that an automobile engine stably outputs torque to the compressor in the running process.

An apparatus controls a motor equipped in a hybrid vehicle. In this apparatus, a basic torque command value of the motor is calculated so as to reduce a deviation between a target rotation speed and an actual rotation speed of the motor. A torque correction value for the motor is calculated based on a variation of the target rotation speed which is obtained per unit time and a value of inertia of a power train rotated integrally with the rotation shaft of the motor. Further, a torque command value finally supplied to the motor is calculated by correcting the basic torque command value with use of the torque correction value.

A seat lifter structure which can obtain a rotation of a sector with stable torques is provided. It is equipped with a sector (7) supported to be rotatable by a support member (21), arranged to be facing with a side frame (2) by being pinched and fixed by a pair of expanded portions (6a, 6b) of a tubular shaft member (6) that is supported to be rotatable by the side frame (2), and rotating along the side frame (2) at a time of raising or lowering the side frame (2); a ring shaped spacer (13) having a first ring shaped abutting surface (13da) facing with the sector (7) and having a first outer diameter (ϕ13d2), and a second ring shaped abutting surface (13ca) facing with the side frame (2) and having a second outer diameter (ϕ13c2) different from the first outer diameter (ϕ13d2), which is installed between the sector (7) and the side frame (2) with an axial line (CL6) as a center; and a biasing member (12) that biases and abuts the sector (7) to the first abutting surface (13da) and biases and abuts the side frame (2) to the second abutting surface (13ca) by biasing the sector (7) and the side frame (2) to approach.

The invention provides a testing apparatus for a service life of a load of a valve execution mechanism and a using method thereof. The testing apparatus comprises a rack, a rotating mechanism and a loading mechanism. The rack is supported between a top plate and a bottom plate by support posts. A testing plate covers the top plate. Rotating shafts are installed in bearings between the top plate and the bottom plate and the upper ends of the rotating shafts pass out of the top plate and a mounting plate. More than one rotating plate is installed on the rotating shafts horizontally and rotates with the rotating shafts. The loading mechanism includes friction plates and hydraulic systems; through holes are formed in the friction plates and the friction plates sleeve the support posts through the through holes. One friction plate is arranged below each rotating plate; and the friction plates are separated by sleeving rings arranged on the support posts. The hydraulic systems are installed on the bottom plate and mandrils of the hydraulic systems support the bottom friction plates; under pushing of the mandrils, upward contact with the rotating plates is realized and the last friction plate is pushed upwardly by the sleeving ring and is in contact with the rotating plate arranged on the friction plate; and the rotating plates and the friction plates in close contact with the rotating plates respectively generate friction and the friction forces are transformed into torques by the rotating shafts, thereby realizing testing of the service life of the load of the valve execution mechanism.

The invention relates to an energy-collecting speed-increasing reverse-rotating lift-drag composite type vertical shaft wind power machine which comprises an energy-collecting plate and a vertical shaft wind wheel, wherein the energy-collecting plate is a panel or an arc-shaped panel; the energy-collecting plate is installed at the periphery of the wind wheel; the distance between the energy-collecting plate and the outer diameter of the wind wheel is 0.0001-0.2 time of the diameter of the wind wheel; at the same time, the included angle alpha of the energy-collecting plate and the tangent line of the inscribed circle of the energy-collecting plate is 50 degrees-75 degrees; the vertical shaft wind wheel is provided with a 'twist type' lift-power type blade rotating reversely based on a dip angle and a 'twist type' resistance force type blade rotating reversely based on a certain dip angle; and a certain phase difference beta minus 45 degrees-45 degrees is formed between the lift-power type blade and the resistance force type blade. The wind power machine is suitable for the wind directions of any incoming flow direction, the flow speed can be improved greatly through contracting the flow channel, the energy consumption of the reverse side of the wind wheel can be reduced by a shield plate, and the high effective utilization of wind energy can be realized.

The invention discloses a contact pressure control mechanism for a molded case low-voltage circuit breaker. A rotating end is connected with a rotating shaft through a first rotary central shaft; a shaft which is positioned below the first rotary central shaft and is in parallel to the first rotary central shaft is arranged on a movable contact; a second rotary central shaft which is positioned below the shaft and is in parallel to the second rotary central shaft is arranged on the rotating shaft; the second rotary central shaft is connected with the lower end of a lever which can rotate around the second rotating central shaft; a spring is arranged in a groove in the rotating shaft; the front side surface at the upper end of the lever is acted on one end of the spring; the rear side surface at the upper end of the lever is pressed against the shaft; the rear side surface at the upper end of the lever is provided with two continuous curved surfaces; the first curved surface is close to the second rotary central shaft; the second curved surface is a circular arc curved surface; when the first curved surface is pressed against the shaft, the shaft is positioned at the front side of an axis connecting line of the two rotary central shafts; when the second curved surface is pressed against the shaft, the circle center of the second curved surface is the first rotary central shaft; and the pressure of the contact can be controlled within the whole rotating range of the rotating shaft, and thus the opening speed of the movable contact is increased.

The present invention relates to a torque sensor comprising a torsion spring having first and second sides which are rotated with respect to one another by a torque applied to the torque sensor, wherein a mechanical coupling apparatus is provided between the first and second sides of the torsion spring and includes a movement element which is moved in the axial direction by a rotation of the first side with respect to the second side. In addition, a measuring apparatus is provided for the measurement of the axial movement of the movement element.

The application provides a knee joint mechanism for a wearable external skeleton. The knee joint mechanism for the wearable external skeleton comprises at least two connection units connected in series in the up-down direction, wherein each connection unit comprises a connection piece and a steel rope pulley installed on the connection piece, each connection piece comprises two first connection sheets oppositely arranged and a second connection sheet clamped between the two first connection sheets, each first connection sheet comprises a first protruded part protruded upwards relatively to thecorresponding second connection sheet, each second connection sheet comprises a second protruded part protruded downwards relatively to the two corresponding first connection sheets, an installing gap is formed between the first protruded parts of the two first connection sheets oppositely arranged on each connection unit, a poisoning pin hole is formed in each first protruded part, an arc slidechute is formed in each second protruded part, an upper tooth part is arranged on the upper edge of each second connection sheet, and a lower tooth part is arranged on the lower edge of each second connection sheet.