53results 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.

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 (p_ASR) is determined which corresponds to the braking force (F_B,ASR) set by the drive slip regulation (ASR). The value determined (p_ASR) is used for the determination of a disrupting yaw momentum (M_Z), and a control portion (Δδ_Z) of a supplemental steering angle (Δδ) is determined in dependence on the disrupting yaw momentum (M_Z). An apparatus for the implementation of the process is also provided.

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 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.

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—SiO_3/2 (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 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.

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 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.

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.