摘要:
A method for altering the coupling torque of a coupling in the drive train of a vehicle with an automatic gearbox and/or automatic coupling in a creep drive mode of a vehicle. According to the invention, the coupling torque is altered according to at least one variable, the parameter of the vehicle describing the creep drive mode thereof.
摘要:
A branched power transmission whose transmission ratio is continuously variable and that includes two planetary transmissions, each having a sun gear, a planet gear, and a ring gear, and a speed change mechanism having a pair of driven shafts. One gear of the first planetary transmission is non-rotatably connected with an input shaft and provides a rotational connection between the input shaft and the driven shafts of the speed change mechanism. One gear of the second planetary transmission is non-rotatably connected with an output shaft and provides a rotational connection between the output shaft and the driven shafts of the speed change mechanism.
摘要:
A drive train of a motor vehicle with an internal combustion engine, a torque converter and a transmission, wherein a separation clutch is provided between the internal combustion engine and the torque converter. In order to be able to perform a creeping process at a certain creeping velocity, the separation clutch is operated slipping. This way, the gearing of the startup process can be configured long, even when using a so-called hard torque converter, without having to tolerate a creeping velocity, which is too high.
摘要:
A method for altering the coupling torque of a coupling in the drive train of a vehicle with an automatic gearbox and/or automatic coupling in a creep drive mode of a vehicle. According to the invention, the coupling torque is altered according to at least one variable, the parameter of the vehicle describing the creep drive mode thereof.
摘要:
A continuously variable power-branched transmission for a motor vehicle, including an input shaft, a variable speed drive unit having pairs of conical disks and a continuously variable transmission ratio, a gear system, and an output shaft. Two control clutches connect the variable speed drive unit and the gear system so that when going through the entire transmission ratio range of the power-branched transmission the adjustment range of the variable speed drive unit is passed through a plurality of times. The transmission also includes rotational speed sensors and a controller that determines whether a change in rotational speed is triggered by a change in the transmission ratio, and when it is not triggered by a change in the transmission ratio, the controller adjusts the variable speed drive unit so that the change in rotational speed not triggered by a change in the transmission ratio is compensated.
摘要:
A planetary transmission having a continuously variable transmission ratio. Two sun wheels with sun wheel outer circumferential surfaces are rotatable coaxially at different rotational speeds and coaxially spaced from each other. A ring wheel is coaxial with the sun wheels and has a radially inner circumferential surface. Planet wheels having planet wheel outer circumferential surfaces are in frictional contact with the ring wheel inner circumferential surface and the sun wheel outer circumferential surfaces. The sun wheel outer circumferential surfaces, the planet wheel outer circumferential surfaces, and the ring wheel inner circumferential surface are so shaped that when there is axial displacement of the ring wheel relative to the sun wheels, tilting of the axes of rotation of the planet wheels relative to the axis of rotation of the sun wheels occurs. The transmission ratio between the sun wheels changes in opposite directions.
摘要:
A plate-link chain for a motor vehicle drive system including conical pulleys. The chain includes a number of link plates hingedly connected with each other by rocker members. The rocker members extend transversely to the longitudinal direction of the chain and within openings in the link plates. The rocker members and link plates bear against each other along curved contact surfaces to transmit power. Rocker member pairs roll against each other on facing curved rolling surfaces at a contact point that moves from an upper area above the center of mass of the rocker member cross section to a lower area below it. The ratio of the distance from the end of the upper area to the center of mass and the distance from the end of the lower area to the center of mass lies in a range of from about 1.1 to about 2.
摘要:
A plate-link chain for a motor vehicle drive system including conical pulleys. The chain includes a number of link plates hingedly connected with each other by rocker members. The rocker members extend transversely to the longitudinal direction of the plate-link chain and are situated in openings in the link plates. The rocker members have end faces for frictional contact with conical surfaces of disks of a belt-driven conical-pulley transmission, and the rocker member end faces are configured so that contact between the rocker member end faces and the conical surfaces of the disks takes place in the upper region of the end faces, relative to the height direction of the rocker members.
摘要:
A plate-link chain composed of a plurality of plates that form plate sets, which are connected to an adjacent plate set with a hinge joint. At least some of the plates have a stopping means that limits bending of the plate-link chain in a direction opposite to the bend direction the chain undergoes when it passes over and around a pulley or a gear with which the chain comes into contacting engagement when the pulley or gear rotates.
摘要:
A plate element for a plate-link chain includes a functional feature that is asymmetrical relative to an axis of the plate element. The plate element has a non-functional region at which an orientation feature is positioned asymmetrically relative to the axis of symmetry of the plate element that is perpendicular to the chain movement direction and is parallel to the front and back faces of the plate element.