56results about How to "Reduce drive torque" patented technology

A vehicular power-transmission control system comprises a continuously variable transmission CVT, which transmits the output of an engine E to wheels, a starting clutch 5, which controls the transmission of power in the continuously variable transmission, an electrical motor generator M, which can assist the engine in rotational drive, and a hydraulic pump P, which is connected to the output shaft of the engine. When the vehicle, which has come into a halt with the engine consequently stopped in an idling elimination control, is to be restarted, the power-transmission control system controls the electrical motor generator to rotate the output shaft of the engine, to which fuel supply is not allowed, thereby to drive the pump. Thereafter, when the starting clutch receiving a hydraulic pressure from the hydraulic pump starts its engagement, the power-transmission control system starts the operation of the engine.

A state in which a vehicle travels while an internal combustion engine drive torque (Te) is transmitted to a driving wheel wherein, Te and a clutch torque Tc are reduced and an electric motor torque (Tm) is increased based on the fact that a shift up condition has been established (t1). Thereafter, based on the fact that Tc is zero (t2), Tc is maintained at zero, and while maintaining a state in which Tm is transmitted to the driving wheel, a shift up operation is performed (t2 - t3). Then, based on the fact that the shift up operation is complete (t3), Te and Tc are increased and Tm is reduced (T3 - T5). After the shift up condition has been established, during the time until Tc becomes zero, the load torque (Ts) of a generator rotatably driven by the power shaft of the internal combustion engine is generated. In a hybrid vehicle equipped with an AMT, the power consumption accorded to the electric motor drive when shifting up while using the assist for the electric motor torque can be reduced.

The present invention provides a horizontally opposed compressor that sufficiently secures the stroke of the piston, arranges each compression section in a balanced manner, is small in size, and has little vibration. The compression part (6, 25) is connected to the eccentric part (3C, 3D) at a position away from the middle position (M) of the crankshaft (3) by the dimension (L1), and the inner diameter (A) of the cylinder (7, 26) and the piston The strokes (S) of (16, 27) are equal. In addition, the compression part (21, 29) is connected to the eccentric part (3C, 3D) at a distance (L2) from the middle position (M), and the inner diameter (A) of the cylinder (22, 30) and the piston (23, 31 ) stroke (S) equal. Accordingly, a balancer or the like is unnecessary, and the compressor can be reduced in size and weight, and vibration can be reduced. Furthermore, since the respective connecting rods (17, 24, 28, 32) can be connected to the crankshaft (3) with the axial positions of the pistons slightly shifted, the stroke (S) can be sufficiently ensured even in a compact arrangement.

The invention provides an electro valve of which the valve core comprises: a basal body which is fixed with a taper valve part, a major diameter shaft part, a minor diameter shaft part and a flange part located on a valve seat in turns from the lower; and a collar hanger component whcih is lagged on the minor diameter shaft part of the basal body in a relative move and rotation state in an axial direction, and stopped by a tubby stop part fixed on a valve support to support the lower end of a helical compression spring. When the valve support is located in a lowest position, the undersurface of the collar hanger component is press bonded on a step surface at upper of the major diameter shaft part of the basal body, while a defined gap is formed beteen the undersuface of the collar hanger component and the upper surface of the stop part. When the rotor and the valve support rotates a defined amount from the lowest position, the upper surface of the tubby stop part abuts on the undersurface of the collar hanger component, and the collar hanger component aparts from the upper step surface of the major diameter shaft part; and when the rotor and the valve support further rotates, the collar hanger component pushes the flange part up. The invention can redece the frictional resistance of the structural member, reduce the drive torque needed for opening the valve, obtain a simple structure with a fewer components, and reduce the cost of the device.

To provide drive torque control capable of avoiding acceleration failure even when a wheelie occurs.A drive torque control method for a vehicle detects or computes a wheelie amount of the vehicle, reduces drive torque that is applied to a rear wheel to be lower than the drive torque in a normal state when the wheelie occurs, and maintains or increases the drive torque when the wheelie amount is reduced.

A process for increasing the stability of a vehicle upon acceleration on a roadway with a non-homogenous coefficient of friction, whereby a drive wheel is acted on by a braking force on a side with a low coefficient of friction by means of a drive slip regulation. A value (pASR) is determined which corresponds to the braking force (FB,ASR) set by the drive slip regulation (ASR). The value determined (pASR) is used for the determination of a disrupting yaw momentum (MZ), and a control portion (ΔδZ) of a supplemental steering angle (Δδ) is determined in dependence on the disrupting yaw momentum (MZ). An apparatus for the implementation of the process is also provided.

A process for increasing the stability of a vehicle upon acceleration on a roadway with a non-homogenous coefficient of friction, whereby a drive wheel is acted on by a braking force on a side with a low coefficient of friction by means of a drive slip regulation. A value (pASR) is determined which corresponds to the braking force (FB,ASR) set by the drive slip regulation (ASR). The value determined (pASR) is used for the determination of a disrupting yaw momentum (MZ), and a control portion (ΔδZ) of a supplemental steering angle (Δδ) is determined in dependence on the disrupting yaw momentum (MZ). An apparatus for the implementation of the process is also provided.

The invention discloses a wheel-leg switching mechanism. The wheel-leg switching mechanism comprises a wheel thigh, wheel shanks and a wheel foot; the wheel shanks are installed on the wheel thigh through shank installation shafts, and the wheel foot is installed on one of the wheel shanks through a foot pin shaft; a shank folding and unfolding driving gear of the wheel thigh drives the wheel shanks to be folded or unfolded through multi-stage gear transmission, and switching of the wheel-shaped structure and the leg-shaped structure is achieved; and a wheel leg driving shaft of the wheel thigh rotates or swings, so that rolling traveling of the wheel-shaped structure or gait traveling of the leg-shaped structure is achieved. According to the wheel-leg switching mechanism, switching of the wheel-shaped structure and the leg-shaped structure can be achieved, quick traveling on a flat pavement and a rugged pavement can be achieved, the diameter of the wheel-shaped structure is large and high in pavement adaptability, the leg-shaped structure is high in bearing capacity and small in joint torque, and the wheel legs are adjustable in length and can flexibly walk under various pavement conditions.

In a scroll compressor, a fixed scroll (3) and movable scroll (5) each having a spiral body are engaged with each other, grooves (13, 14) extending along the spiral shape of the spiral body are formed in the forward end surface of the spiral body of at least either one of the fixed scroll and movable scroll, and tip seals (11, 12) are disposed in the grooves so as to project from the forward end surface and be slidable on the bottom plate surface of the other scroll facing the forward end surface. The tip seals have large projection parts (17, 18) with a larger amount of projection from the forward end surface and also have small projectionparts (19, 20) with a smaller amount of projection from the forward end surface, and the large projection parts and small projection parts are arranged alternately in the direction along the spiral shape of the spiral body. The scroll compressor does not produce an excessive load at the end of the wall of the scroll while achieving the same sealability as in the case of conventional structures, i.e., the efficiency of the compressor can be improved.

The invention discloses a pulse-tube refrigerator which comprises a pulse tube, a regenerator and a rotary valve, wherein the rotary valve comprises a valve seat, a valve disk and a buffer; the valve seat is provided with a sliding surface; while the valve disk is contacted with the sliding surface of the valve seat, the valve disk rotates relative to the valve seat so as to switch a flow path of a refrigerant; and the buffer pushes the valve disk to the valve seat, so that the pressure of buffer gas is lower than the average pressure of a refrigerator system.

The invention provides a steam drive type compression device (1), which does not reverse on stop. The steam drive type compression device comprises a steam expansion machine (2) for converting expansion force of steam into rotation force; compressors (4, 5) driven by the steam expansion machine (2) to compress an object gas; an output path (9) for outputting the compressed object gas from the compressor (5), and provided with a check valve (8); and a ventilation path (12) branched from the output path (9) on the upstream side of the check valve (8), and opening outwards through a ventilation valve (10). The steam drive type compression device is characterized by comprising a steam control valve (14) for controlling the flow amount of the steam of the steam expansion machine (2); an output pressure detector (13) for detecting the pressure of the output path (9) on the upstream side of the check valve (8); and a stop control device (15) for opening the ventilation valve (10) until the detection value of the output pressure detector (13) is below the given setting pressure when the compressors (4, 5) stop driving.

The invention relates to a method for operating a drive train (1) for a motor vehicle, comprising at least one primary drive axle (2) and at least one secondary drive axle (3) which are operatively interconnected to an adjustable transmission torque by means of a clutch (11). According to the invention, the transmission torque is reduced when wheel slip exceeding a determined slip threshold value is detected on the secondary drive axle (3). The invention also relates to a drive train (1) for a motor vehicle.

A charging member 2 that charges an image bearing member 1 has an electrically conductive support and an elastic layer in contact with the image bearing member 1. The elastic layer includes a semi-conductive rubber composition having a matrix-domain structure including a matrix and domains having electric conductivity. The matrix has a higher volume resistivity than the domain. The developer includes a toner having toner particles. The toner particles each have a surface layer including an organosilicon polymer. The organosilicon polymer has a structure represented by R—SiO3 / 2 (R is a hydrocarbon group having at least 1 and not more than 6 carbon atoms). The adhesion ratio of the organosilicon polymer on the surface of the toner particle is 90% or more.

The invention provides a flow switching valve. According to the present invention, the flow direction of the fluid can be efficiently switched with a relatively simple structure, and also contributes to miniaturization, capacity increase, power saving, and the like. The ascending and descending drive unit for raising and lowering the valve shaft in the axial direction includes a stepping motor, a rotation shaft that rotates integrally with the rotor of the stepping motor, and a movement conversion mechanism that converts the rotation movement of the rotation shaft into a lifting movement of the valve shaft; at least two inboard ports opening to the valve chamber are opened in the inboard casing; at least two inboard ports are separated in the axial direction, and at least one communication port is formed in the inboard casing so as to always communicate the valve chamber with the communication space; an outer housing is provided with an outer port which is always communicated with the communication space; the upper back pressure chamber is always in communication with the lower back pressure chamber; the valve shaft is lifted and lowered in the valve chamber with at least two of the valve elements provided on the valve shaft being connected to the inner housing, and the communication between at least two of the inner and outer ports is switched.

The invention discloses an unmanned aerial vehicle cloud platform for fire fighting. The cloud platform comprises a main body structure, a water gun, a water hose, a rope and a water hose quick connector, and the water gun is fixedly connected to the main body structure; a water inlet of the water gun is connected to the water hose quick connector through the water hose, and the water hose quick connector is connected to the main body structure through the rope; the main body structure has two degrees of freedom, and comprises a horizontal rotating part and a pitching rotating part; the designof a two-degree of freedom structure is adopted, so that a wider fire extinguishing range can be covered; and the movement is more flexible. An independent load structure is adopted, so that the power of a horizontal motor and a pitching motor can be reduced greatly, and the size and weight of the overall structure can be reduced. With regard to connection with a fire hose, since the cloud platform is provided with a part of fire hose and the water gun, the connection is convenient and fast. Only an external fire hose needs to be connected to the part below the water hose connector; and in this way, the connection is convenient and fast.

An image forming apparatus including: an image bearing member; a developing member to supply a developer to the image bearing member; and a cleaning member to clean a peripheral surface of the image bearing member in contact with the peripheral surface, wherein a plurality of grooves extend in a circumferential direction on the peripheral surface, and have a width in a generatrix direction of the peripheral surface within a range of at least 0.5 μm and not more than 40 μm, and are formed to be side by side in the generatrix direction; the number of the grooves is at least 20 and not more than 1000 per a width of 1000 μm in the generatrix direction of the peripheral surface; and an average depth (Rvk) of a valley of a projection under a core section of a roughness curve of the peripheral surface is 0.08 μm or less.

The invention discloses a base used for information recording media, information recording media provided with an information storage layer on the base and the manufacture method. The invention is characterized in that the base used for information recording media is composed of a glass containing alkali metal oxide; wherein, the transformation temperature of the glass is more than six hundred and twenty DEG C; when the glass is dipped into the constant temperature water with eighty DEG C for twenty four hours, the dissolved quantity of the alkali metal ions is less than zero point two Mu mo / cm <2> per unit area.

Provided is a flow path switching valve which can efficiently switch fluid flow direction (flow path) with a relatively simple constitution and contribute to further miniaturization, large capacity, power saving, etc. At least two inner ports (p1 to p3) opening into a valve chamber (7) are opened in an inner housing (9A) so as to be spaced apart from each other in the direction of the axis O, and at least one communcaiton port (p11 to p12) communicating with the valve chamber (7) and the communicating space (8) at all times. One of the communication ports (p11 and p12) is opened and an outer port (p10) which always communicates with the communication space (8) is opened in the outer housing (9) so that the upper back pressure chamber (30) and the lower back pressure chamber (31) are always in communication The valve shaft (20) is raised and lowered in the valve chamber (7) in a state where at least two valve bodies (21 to 23) provided on the valve shaft (20) are in contact with the inner housing (9A), whereby at least two inner ports (p1-p3) and the outside port (p10) are switched.

The invention discloses a micro-dynamic ash-discharging ball valve belonging to the technical field of valves and aims to provide an ash-discharging ball valve with small opening torque, smooth ash-discharging process, good ash-cleaning effect on the surface of the ball valve and reliable seal. The technical scheme of the invention is as follows: the micro-dynamic ash-discharging ball valve comprises a valve body, a valve rod, a valve seat and a valve cover, and the ball body of the ball valve is a hemisphere; the micro-dynamic ash-discharging ball valve further comprises a hemisphere bracketand a metal bloated bag; the hemisphere bracket is fixedly connected with the valve rod; the bottom surface of the bloated bag is installed on the hemisphere bracket; the bottom surface of the hemisphere is connected with the top surface of the bloated bag to form a closed hollow cavity; the cavity of the bloated bag is communicated with a compressed air pipeline; and a double-sided stainless steel sealing ring is fixed on the valve seat and contacted with the surface of the hemisphere. According to the invention, the structure for fulfilling a seal depending on a constant pressure between the sealing ring and the ball body of the traditional ball valve is changed, and a drive torque in opening and closing processes is greatly reduced; a hard seal with an ash-scraping function has the advantages of excellent resistance to abrasion, temperature resistance and environmental protection adaptability; and multiple effects of labor-saving in transmission, smooth ash-discharging process, natural ash-cleaning effect, reliable seal, and the like are fulfilled.

The invention relates to a method for operating a motor vehicle having at least one drive unit which is suitable for outputting a drive torque, wherein a drive torque which is requested by the driver by means of the accelerator pedal is filtered in the case of a rapid change of the accelerator pedal position by means of a torque I / O module and / or an accelerator pedal filter, or the rate of change thereof is limited with the result that a slowed-down decrease in drive torque or increase in drive torque occurs. According to the invention, in the case of a requested reduction in the drive torque at the same time as the slowed-down decrease in the drive torque a vehicle brake system is correspondingly actuated in order to bring about a predefined deceleration of the vehicle.

A method for stopping a motor vehicle stably at least comprises the following steps during the stop operation (2) of the motor vehicle: providing (3) a creep torque via a drive train of the motor vehicle; then, or increasing, independently of the driver, engine speed (4) of a drive engine of the drive train to increase a drive torque of the drive engine and simultaneously increasing (5), independently of the driver, a braking torque of a brake system of the motor vehicle to achieve a constant ratio between the drive torque and the braking torque of the motor, wherein the maximum braking torque is as great as the creep torque during a standstill of the motor vehicle; and maintaining (5) the maximum braking torque and simultaneously reducing (7) the engine speed of the drive engine to a point at which the motor vehicle comes to a standstill; or applying (9), independently of the driver, a braking torque by a brake system of the motor vehicle, wherein the applied braking torque is as great as the creep torque present when the motor vehicle is at a standstil; and then maintaining (6) the braking torque and simultaneously reducing (10) the creep torque of the drive train up to a point at which the motor vehicle comes to a standstill. The invention further relates to an electronic control device for stably stopping the motor vehicle. The electronic control device comprises a device for executing the methods (1, 8).

The invention discloses a locomotive bogie driving device. The locomotive bogie driving device comprises one axle, wherein a driven gearwheel is arranged on the axle in an interference mode, and identical traction motors are symmetrically arranged on the two sides of the axle; and driving pinions are arranged on rotating shafts of the traction motors in an interference mode correspondingly, and the driving pinions of the traction motors on the two sides of the axle are simultaneously meshed with the driven gearwheel to form a transmission gear pair. The driving torque and the driving power ofthe locomotive bogie driving device can be obviously increased and even doubled; and for appointed single-shaft traction power and traction force, the size and the weight of the single traction motorof the locomotive bogie driving device are smaller, so that huge space convenience is provided for a bogie traction rod to pass through the position below the traction motors; and in addition, the abrasion matching performance of the driving pinions and the driven gearwheel of the locomotive bogie driving device is better.

A hybrid system control device comprises: an engine (ENG); a motor / generator (MG); an automatic clutch (10) in which an engine rotation axle (51) is connected to a first engagement part (11) side thereof; a differential device (40) further comprising a plurality of rotation elements in which an MG rotation axle (52) and a second engagement part (12) side of the automatic clutch (10) are respectively independently connected; a first transmission (20) in which a rotation axle (53) is connected to the same rotation element as the second engagement part (12) side; a second transmission (30) in which a rotation axle (54) is connected to another rotation element; and an output axle (55) which is connected to a drive wheel (W) side. When in EV travel, the first transmission and the second transmission are controlled and the automatic clutch is disengaged such that torque may be transmitted among the I / O axles of the respective first and second transmissions. When starting the engine during EV travel, the engine RPM is increased by engaging the automatic clutch during EV travel, and the amount of reduction of the drive torque which is reduced commensurate with the engagement of the automatic clutch is compensated for by output torque of the motor / generator.

The invention relates to a small wing of a wingtip with an adjustable angle of attack and the wingtip of a wing, and belongs to the field of wing structures. The angle of attack of a low mach number ascending and descending stage of an existing small wing of the wingtip is not large enough, and when a taking-off and landing low-speed stage reaches a threshold angle of attack, the small wing stalls. The small wing is composed of one or two sheets, and is arranged on an end curve surface of the wingtip of the wing, a rotary shaft is located on the 1 / 4 chord line of the small wing or the slightlyforward position of the 1 / 4 chord line of the small wing, the rotary shaft is horizontal or nearly horizontal, and both sweepback, the rotary shaft is inserted from the end curve surface of the wingtip of the wing and supported on a bearing, a motor in the wingtip is used for reduction driving, and automatic deflection is carried out to enable the angle of attack to be adjustable, so that the value of the angle of attack of the small wing reaches to a comparatively large value in various stages. A drive torque of the small wing is small, and the component in the lift direction of an airplaneof aerodynamic force is large. Furthermore, a sheet of spanwise, sweepback, and fixedly-sheared wingtip is additionally arranged on the wingtip of the small wing. The small wing of the wingtip with the adjustable angle of attack and the wingtip of the wing is used for further reduce wing induced drag.

A dual relief valve apparatus of a Balance Shaft and Oil Pump Module (BSM) of a vehicle engine may include the pump housing, and a primary relief valve and a secondary relief valve mounted inside the pump housing, wherein the primary relief valve and the secondary relief valve may be sequentially opened or closed, wherein the primary relief valve may be first opened to release a first oil by a first oil discharge pressure applied thereto and sequentially the secondary relief valve may be opened to release a second oil by a second oil discharge pressure applied thereto, the first oil discharge pressure being relatively smaller than the second oil discharge pressure.

Provided is a power device which allows an increase in the efficiency of a vehicle while allowing an improvement in the responsiveness of the device, weight reduction, and a reduction in manufacturingcosts. The rotational speeds of first to third rotary elements satisfy a collinear relationship of being aligned on a single straight line in this order in an alignment chart. The first and second rotary elements are connected to a first rotary electric machine and wheels, respectively, whereas the first and second connecting / disconnecting members of a first one-way clutch are connected to the first and second rotary elements, respectively. If the first and second rotary elements are rotated in a first predetermined rotation direction with the rotational power transmitted from the first rotary electric machine, the transmission of rotational power from the first connecting / disconnecting member to the second connecting / disconnecting member is interrupted. If the second and first rotary elements are rotated in the first predetermined rotation direction with the rotational power transmitted from the wheels, the transmission of rotational power from the second connecting / disconnecting member to the first connecting / disconnecting member is connected. A second one-way clutch allows rotation of the third rotary element in the first predetermined rotation direction, and restricts rotationof the third rotary element in the reverse direction from the first predetermined rotation direction.

The invention provides a gearbox special for a new energy automobile, and belongs to the technical field of automobile gearboxes.The gearbox comprises a gearbox shell, an input shaft arranged at the front end of the central axis of the gearbox shell and an output shaft arranged at the rear end of the central axis of the gearbox shell.The input shaft is connected with a gearshift through a gear pair, the input shaft directly transmits power to the output shaft, the gearshift is connected with a hydraulic electronic valve block, and a hydraulic pump pumps pressure oil into the hydraulic electronic valve block.By means of the gearbox, efficient transmission of the powder of an engine is guaranteed, efficient recovery of the braking energy of the new energy automobile is guaranteed, the idling start-stop function of the engine of the new energy automobile is retained, the driving torque of a motor is reduced, the large current of a battery is reduced, the loading capacity and climbing capacity of the new energy automobile are improved, the maximum running speed of the new energy automobile is increased, and the acceleration time of the new energy automobile is shortened.

The invention provides a variable valve mechanism (10) for varying the amount of lift and angle of action of a valve body (12) of an internal combustion engine. The variable valve mechanism (10) has a first cam (54) rotating as a crank rotates, transmission members (24, 38) having second cams (32, 34) that oscillate synchronous with the rotation of the first cam (54) and transmit an action force created by the first cam (54) to the valve body (12), a control shaft (40) adjusted to a predetermined rotational position, varying mechanisms (36, 38) for varying the amount of lift and angle of action of the valve body (12) by varying oscillation ranges of the transmission members (24, 38) according to the rotational position of the control shaft (40), a lost-motion spring (60) for urging the transmission members (24, 38) toward the first cam (54) so that the connection between the transmission members (24, 38) and the first cam (54) is maintained, and an assist spring (64) for urging the transmission members (24, 38) against the urging force of the lost-motion spring (60).