760results about How to "Smooth shifting" patented technology

A continuously variable transmission adapted to set a speed change ratio in accordance with a tilt angle of a rolling member mediating a torque being transmitted, and to transmit a torque among three elements. The transmission mechanism is provided with a rolling member having a smooth outer face and capable of tilting a rotational center axis thereof, and a rotary member arranged to be contacted with a predetermined portion of the outer face of the rolling member in a torque transmittable manner. Specifically, the continuously variable transmission mechanism is configured to vary a rotational speed of the rotary member by changing a rotation radius of a contact point between the rolling member and the rotary member by tilting the rotational center axis of the rolling member.

A vehicle operation assisting system includes an assist yaw rate calculator which calculates an assist yaw rate necessary to avoid an obstacle based on a detection result of the obstacle by a radar device, an actual vehicle moving amount calculator which calculates an actual vehicle moving amount from a yaw rate and a lateral acceleration of a vehicle. When an avoiding operation detector determines an avoiding operation of a driver, a target vehicle moving amount setting device replaces a standard moving amount based on an avoiding operation of a driver with the assist yaw rate, and a vehicle movement controller controls lateral movement of the vehicle so that the actual vehicle moving amount agrees with the assist yaw rate. At this time, in addition to the yaw rate, the lateral acceleration is also used for calculating the actual vehicle moving amount, and therefore an upset of the vehicle behavior can be avoided by properly controlling the lateral movement of the vehicle on a road having a low friction coefficient on which the tires easily skid. A vehicle operation assisting system capable of properly performing an obstacle avoiding operation and a restoring operation even on a road having a low friction coefficient is thereby provided.

An intraocular lens is provided that includes an optic body having anterior and posterior walls, a chamber, and optically transmissive primary and secondary fluids, and method for making and using the same. The secondary fluid is substantially immiscible with the primary fluid and has a different density and a different refractive index than the primary fluid. The primary fluid is present in a sufficient amount that orienting optical body optical axis horizontally for far vision positions the optical axis through the primary fluid, thereby immersing the anterior and posterior optical centers in the primary fluid. The secondary fluid is contained in the optic body in a sufficient amount that orienting the optical axis over a range of effective downward angles relative to the horizontal for near vision positions the optical axis to extend through the primary fluid and the secondary fluid, thus changing the focus of the intraocular lens.

An uninterruptible power supply (UPS) provides DC output power and uses a plurality of relatively low power DC / DC converters which are of much higher efficiency and lower heat dissipation than inverters normally used in UPS devices to provide AC output power. Power is stored at high voltage in capacitors to provide output power when input power may be interrupted. Since the power dissipation is reduced and use of batteries can be avoided where redundant input power sources are available, the UPS made be made very compact and of light weight as is particularly suited to mobile machinery such as aircraft, water-borne vehicles and the like.

The invention provides a method for controlling repeated gear engagement in a DCT (dual clutch transmission) synchronizer gear engaging process. By the method, the problems that in a DCT gear shifting process, gear shifting cannot be realized or impact of gear shifting is caused under conditions that teeth face to each other, gear shifting fails and a synchronizer is worn are solved. In the method, a whole gear shifting process is divided into three stages comprising (1) a stage of approaching a synchronizing ring, (2) a synchronizing stage, and (3) a gear engaging stage after a gear sleeve is connected with connecting teeth. After the three stages are analyzed, the conditions that the teeth face to each other comprise the following two types of conditions: (1) teeth of the gear sleeve face teeth of the synchronizing ring; and (2) the teeth of the gear sleeve face the connecting teeth. The two types of conditions are analyzed, flexible gear engaging is realized and the synchronous ring is protected from being impacted by repeatedly engaging a gear, so that the service life of the synchronizing ring is prolonged, and the gear engaging success rate is increased.

A hybrid vehicle mode transition control apparatus includes a hybrid drive system having a first clutch disposed between an engine and a motor generator, and a second clutch disposed between the motor generator and wheels; an engine braking request judging section configured to judge whether a request of an engine braking is present during a motor regenerative braking performed by the motor generator, and a mode transition control section configured to perform a mode transition control of the hybrid drive system in accordance with a transition request. The mode transition control apparatus is configured to decrease a torque capacity of the second clutch being in an engaged state in response to the judgment that the request of the engine braking is present, and to bring the first clutch from a disengaged state to the engaged state to shift to the engine braking.

A legged robot that runs while repeating a jump cycle including a ground-contact phase from a landing to a takeoff and an aerial phase from a takeoff to a landing is provided. The legged robot adjusts the landing timing after a jump in accordance with a planned timing, thereby attaining a smooth landing. A measuring unit of the legged robot measures an actual aerial phase period in a k-th jump cycle. A subtractor calculates a time difference between a target aerial phase period and the actual aerial phase period in the k-th jump cycle. A target velocity determining unit calculates a target vertical velocity of a center of gravity on a takeoff timing in a (k+1)-th jump cycle so as to eliminate the time difference. Motors in respective joints are controlled so as to realize the calculated target vertical velocity in the (k+1)-th jump cycle. As a result, the time difference generated in the k-th jump cycle in the (k+1)-th jump cycle can be compensated, thereby adjusting the landing timing with the planned landing timing, resulting in the jump motion with smooth landing.

The invention belongs to an automotive transmission and in particular discloses a double-clutch automatic transmission shift control method. The method is characterized in that: a duty ratio of a solenoid valve for controlling the engagement and separation of clutches in a double-clutch automatic transmission is adjusted to control a matched timing sequence of two clutches and respective joint speed and joint pressure thereof in the shifting process, so that the sum of transmission torque of a front clutch and a subsequent clutch adapts to the torque of an engine in the shifting process; and a shifting moment and a corresponding shift method are determined according to an accelerator pedal position signal acquired by a sensor, the rotating speed of the engine, the rotating speed and a clutch pressure signal of an input shaft of the front clutch and the rotating speed and a clutch pressure signal of an input shaft of the subsequent clutch. By the method, the shifting process is stable and rapid, the shifting quality is high, and the riding comfort is improved.

The invention discloses a lens shifting mechanism with a shape memory alloy (SMA), and the lens shifting mechanism is suitable for an auto-focusing lens module. The SMA wire has two opposite ends and a middle moving segment between the two opposite ends, wherein, the two opposite ends are fixed, and the length direction middle point of the middle moving segment is tightened and suspended at a corresponding hook arranged at the outer edge of a lens retaining part, which causes the middle moving segment to form a stress state relative to the two opposite ends; when the SMA is heated, the middle moving segment can be retracted to pull the corresponding hook at the lens to drive the lens to shift by sliding to achieve auto-focusing effect; an elastic restoring piece can be further arranged at the lens retaining part, and when the SMA contracts to recover the original length due to cooling, the elastic restoring piece can supply restoring force to cause the lens to be restored to the original position; and a correspondingly matched guide rail device can be further arranged between the lens retaining part and an accommodation chamber to cause a lens set to steadily shift in the accommodation chamber by sliding.

A moving device (1) capable of being operated easily and safely to move a person between various types of beds and chairs by supporting the femoral region and backbone of a person to be moved instead of by suspending the person to be moved by a belt or supporting the axillas and knees of the person, comprising a body frame (4) having a pair of right and left front wheels (2) and rear wheels (3) and having an open rear side, a column (14) erected on the body frame, a pair of right and left side seat parts (32) provided on a pair of right and left side arms (31) fixed to the column, a handrail frame body (46) fixed to the column and having an open rear side, a backbone supporting part (48) disposed at the rear of the seat parts, and a lifting mechanism capable of lifting the seat parts vertically, wherein the arms are formed in a crank-shape and connected pivotally to the column through longitudinal shafts positioned at the front of the knees of the person to be moved, and the seat parts are rotated eccentrically from the outside upper side to the inside lower side so as to insert the seat parts into the lower side of the femoral region while bypassing the knee parts of the person to be moved.

A power-assisted bicycle includes a bicycle body with a power assistance provider and a derailleur, a microcomputer, a gear-shift control driver, and sensors. When the microcomputer decides to perform gear shifting, it controls the power assistance provider to provide an assistant power output and the gear-shift control driver to drive the derailleur to shift gears properly subject to a before-shifting time period, an in-shifting time period and an after-shifting time period. Further, the microcomputer controls the power assistance provider to change the current assistant power to a predetermined low assistant power during the before-shifting time period, or to maintain the predetermined low assistant power during the in-shifting time period, or to change the assistant power output to a level higher than the current assistant power and then to return to the said current assistant power after the end of the after-shifting time period.

A power transmitting apparatus for a vehicle includes: an electric supplementary drive unit; a torque converting device including a planetary gear set having a first rotation element connected to the electric supplementary drive unit, a second rotation element connected to an engine, and a third rotation element operated as an output element; an input device including a first input shaft connected to the third rotation element through one clutch and provided with an input gear thereon, and a second input shaft coaxial with the first input shaft without rotational interference, connected to the second rotation element through the other clutch, and provided with an input gear thereon; a direct coupling device selectively connecting two rotation elements among the first, second, and third rotation elements of the torque converting device so as to cause the torque converting device to become a direct-coupling state; and a speed output device.

A hybrid vehicle mode transition control apparatus includes a hybrid drive system having a first clutch disposed between an engine and a motor generator, and a second clutch disposed between the motor generator and wheels; an engine braking request judging section configured to judge whether a request of an engine braking is present during a motor regenerative braking performed by the motor generator, and a mode transition control section configured to perform a mode transition control of the hybrid drive system in accordance with a transition request. The mode transition control apparatus is configured to decrease a torque capacity of the second clutch being in an engaged state in response to the judgment that the request of the engine braking is present, and to bring the first clutch from a disengaged state to the engaged state to shift to the engine braking.

A method and apparatus for increasing sample image resolution using patterned illumination. An array of optical emitters is selectively activated as a programmable light source, directed to a patterned mask which selectively changes amplitude or phase characteristics of optical energy received onto a sample. A sequence of images are captured of the sample, each being captured in response to a different spatial arrangement of optical outputs from the optical emitter array. These sample images are then post processed into a reconstructed image which has increased resolution over the separately collected images of the sample.

A hybrid vehicle is provided with an engine, a starter generator motor, a traction motor, an automatic manual transmission system, a battery, an automatic-switching clutch, and a control unit assembly. The starter generator motor is coupled and synchronously rotates with the engine for starting the engine and serving as an assistant power. The automatic manual transmission system is coupled with the traction motor and performs a gear-shifting / speed changing by controlling the rotation speed of the starter generator motor and the traction motor. The automatic-switching clutch is coupled between the starter generator motor and the automatic manual transmission system to make them be engaged / disengaged so as to switch the power type. The hybrid vehicle control device gives a signal to the torque / rotation speed control device to control the automatic-switching clutch to engage / disengage the engine and the traction motor according to the running state of the vehicle.

A fire-blocking door lock structure is mounted on a fire-blocking door including a frame member, a push handle and a casing. The casing has the bottom thereof fixed to a plate member and connected to a base body. The fire-blocking door lock structure includes a middle latch mechanism mounted in the casing, an upper latch mechanism and a lower latch mechanism symmetrically mounted on opposite sides of the middle latch mechanism and connected to the middle latch mechanism, and an actuation mechanism connected to the middle latch mechanism. When the push handle is pressed, the actuation mechanism is driven to actuate the middle latch mechanism, and the upper latch mechanism and the lower latch mechanism are simultaneously actuated by the middle latch mechanism to unlatch the door lock. When the push handle is released, the door lock is restored to the lock-up status.

Provided are a receiver and a receiving method for a scalable bandwidth in a mobile station of an Orthogonal Frequency Division Multiplexing (OFDM) system. The receiving method includes the steps of: (a) filtering a received RF signal; (b) oscillating a frequency according to a center frequency control signal to output a local oscillation frequency; (c) down-converting the filtered RF signal by using the local oscillation frequency; (d) scalable-filtering the down-converted signal while adjusting a bandwidth according to a bandwidth control signal; (e) controlling gain of the scalable-filtered signal; (f) converting the gain-controlled analog signal into a digital signal by using a sampling frequency matching with a corresponding bandwidth according to an ADC control signal; and (g) demodulating the converted digital signal, outputting the center frequency control signal, the bandwidth control signal, and the ADC control signal according to control information received from an upper layer.

A brake application speed is compared with a speed threshold value so as to judge whether or not a braking operation being performed is an emergency braking operation. If not the emergency braking operation, an automatic parking mode is held. When the emergency braking operation is in effect, control information related to a state of an automatic parking control then is stored in a control information storage section, and the automatic parking control is cancelled. Thereafter, when a steering operation or a gearshift operation is performed before a cancellation of application of the brake is detected, the process is ended, and the control mode is held in an assist mode. When the application of the brake is cancelled with neither the steering operation nor the gearshift operation performed, the control information is read in so as to resume the automatic parking control.

A vehicle steering control apparatus includes a steering wheel to be operated by a driver, a steering mechanism for turning the front wheels in accordance with an operating torque of the steering wheel, and a clutch for mechanically connecting the steering wheel to the steering mechanism. A clutch engagement command issuing section is provided for issuing an engagement command to the clutch when the clutch is disengaged and a condition for engaging the clutch is satisfied. A clutch engagement determining section is provided for determining that the clutch is in an engaged state when an increase in torque is detected at the steering wheel after the engagement command has been issued to the clutch.

A power transmission apparatus for a vehicle includes: a first shift unit; a second shift unit; an electric motor connected to a rotating element of the first shift unit or the second shift unit so that the rotational speed changes in accordance with a gear-shift of the first shift unit or the second shift unit; and a control unit that controls at least one of start timings of inertia phases of the gear-shifts of the first and second shift units using the electric motor, when the gear-shifts of the first and second shift units are performed simultaneously and gear ratios of the first and second shift units are changed in opposite directions. With this control, in the simultaneous gear-shift, the gear-shift of one of the shift units is started and completed in a period from start of the gear-shift of the other shift unit until completion of this gear-shift.

The invention relates to a long-distance control wellhead operation device for workover operation. The long-distance control wellhead operation device mainly solves the problems that the labor intensity of workers is high, the safety is poor and the operation efficiency is low as the wellhead operation can not be mechanized and automated during the traditional workover operation. The long-distance control wellhead operation device is characterized in that a centering manipulator is arranged at the upper end of an operation appliance; a pair of hydraulic pliers is arranged inside a framework of the operation appliance; a buffering and locating block is arranged at the front end of the operation appliance; a moving mechanism is arranged at the lower end of the operation appliance; the operation appliance is positioned on a base of the operation appliance; the base of the operation appliance can be adjusted in the vertical direction and is used for locating the operation appliance in thevertical direction; a power slip is arranged inside the base of the operation appliance; the slip is connected with a flange at a wellhead; the installation position of the base of the operation appliance is determined by the power slip; and a control cabinet is welded at the side of the framework of the base of the operation appliance and is used for controlling a hydraulic system of the whole device. The long-distance control wellhead operation device has the advantages of increasing the mechanization and automation degree of assembly and disassembly of tubular columns, reducing the labor intensity of workover workers, realizing the unmanned operation of the wellhead and achieving the actual application value.

The invention discloses an automatic continuously variable transmission of a tractor. The continuously variable transmission is characterized in that power of an engine is shunted and distributed to a mechanical transmission section and a hydraulic transmission section by a transmission mechanism, and then converged by front and rear planetary gear rows (4) and (5), continuous infinitely variable speed is realized in each region by controlling the flow quantities, the rotate speeds and the rotate directions of a hydraulic system and an executive component. The gearbox has the characteristics by being capable of automatically adapting load and realizing stepless speed regulation so as to guarantee the engine to be in the best working condition. The novel continuously variable transmission device has the advantages of a mechanical transmission and a hydraulic transmission. Compared with the common mechanical continuously variable transmission, the novel transmission has the characteristics of great transmitting power, high efficiency and the like, and contributes to the improvement of the dynamic property, economy and working performance of the tractor.

A bicycle front derailleur includes a fixed member, a chain guide, a linkage assembly and an adjustable mounting fixture. The fixed member includes a frame mounting portion having at least one frame mounting hole and a linkage support portion. The linkage assembly is coupled between the linkage support portion and the chain guide in order to move the chain guide between the retracted position and the extended position. The mounting fixture is adjustably coupled to the fixed member. The mounting fixture including at least one frame fastener disposed in the frame mounting hole, a pair of first washer members disposed on a first side of the frame mounting portion and a pair of second washer members disposed on a second side of the frame mounting portion with the frame fastener extending through the first and second washer members.

The invention provides a pure electric two-speed transmission. The pure electric two-speed transmission comprises an input shaft (1), a reducer (6), an output shaft (7) and a brake (8), and a planetary mechanism which comprises a sun gear (4), a planet gear (3), a gear ring (5) and a planet carrier (2), wherein the planet carrier (2) is fixedly assembled to the input shaft (1), the sun gear (4) is fixedly assembled to the output shaft (7), and the right end of the output shaft (7) is fixedly connected with the reducer (6), the pure electric two-speed transmission is characterized by further comprising a one-way clutch (9), the right end of the output shaft (1) is connected with the left end of the output shaft (7) through the one-way clutch (9), and the gear ring (5) of the planetary mechanism is connected with the brake (8). According to the invention, gears can be shifted only by using one one-way clutch 9 and one brake 8, and one one-way clutch 9 and one brake 8 are only required to be controlled when the gears are shifted, so that the control difficulty is smaller.

The invention discloses a four-driven strong-hybrid automobile AMT (automated mechanical transmission) coordinated control method and a system thereof, belonging to the field of hybrid automobile control. Driving information is acquired by a whole automobile controller which is also responsible for managing and distributing the torque needed by the whole automobile. The method comprises the following steps of: determining the whole automobile driving mode, and selecting the whole automobile driving mode adaptive to the driving information; sending instruction information to an AMT controller according to the whole automobile driving mode, and executing the instruction control of the whole automobile controller by the AMT controller; and carrying out coordinated control on all driving motor controllers by the whole automobile controller according to the execution condition of the AMT controller so as to meet the requirement for smooth shifting of a driver for driving. In the AMT coordinated control method, by coordinated control of the whole automobile controller to the AMT controller, the shifting smoothness of an AMT is effectively improved, so that the shifting becomes faster and more comfortable; and simultaneously a rear-driven pure-electric driving mode is utilized for preventing an AMT system from working at the stages of starting and low speed, so that the automobile driving is more economic.

Among a plurality of parameters concerning a film forming condition, different parameter values are set for one parameter and the same predetermined values are set for other parameters to manufacture two pieces of film structures including a high-dielectric constant film or ferroelectric film formed on a substrate. The film characteristics of the respective film structures are analyzed by a spectroscopic ellipsometer, a film structure in which the ratio of the presence of an accompanying dielectric film is smaller, is determined to be good by comparing the analysis results, and a parameter value set for the manufacture of the good film structure is determined. Then similar processing is performed, to specify an optimal parameter value for one parameter, and similar processing is also performed for other parameters to specify an optimal parameter value for the other parameters.

The invention relates to a screw-nut gear-shifting mechanism for an automatic two-gear transmission of an electric car. The mechanism comprises an input shaft, an intermediate shaft and a fork gear-shifting mechanism, wherein the input shaft and the intermediate shaft are parallel to each other; a first-gear driving gear and a second-gear driving gear are fixedly arranged on the input shaft respectively; a second-gear driven gear, a first-gear driven gear, a main reduction driving gear and a synchronizer are sequentially arranged on the intermediate shaft respectively; the first-gear driving gear and the first-gear driven gear are normally engaged, and the second-gear driving gear and the second-gear driven gear are normally engaged; a main reduction driven gear is arranged to be matched with the main reduction driving gear, and during installation for usage, the main reduction driven gear is fixed on a differential mechanism flange plate through bolts; and a fork of the fork gear-shifting mechanism is sleeved with a joint sleeve of the synchronizer. According to the mechanism, a screw and screw-nut mechanism is adopted, so that the accuracy and the reliability of gear shifting are improved; and the mechanism is simple in structure, convenient to install and small in size, has a self-locking function and can prevent gears from loosening.