摘要:
A drivetrain provided with a CVT that can be used in both CVT and Infinitely Variable Transmission (IVT) configurations and that includes a high-low gear selection assembly and a power mixer is described herein. The drivetrain includes a high-low gear selection mechanism that provides, in combination with the CVT, high and low ranges of gear ratios. The drivetrain further includes a power-mixer that allows the IVT configuration for transitions between high and low configurations that are seamless to the operator.
摘要:
A dual-cavity toroidal Continuously Variable Transmission provided with co-axial input/output arrangement where a drum assembly is used to transfer torque from a central driven disk of the CVT to the output shaft of the CVT and including at least one embedded resilient member to reduce torque fluctuations present in the CVT.
摘要:
A method where the spin factor is looked up in a table; the slip factor is measured and the clamping pressure is adjusted to achieve a slip/spin ratio provided in a desired range is described herein. According to another aspect, an active mechanical clamping mechanism using a longitudinally movable contact point is also described.
摘要:
A method where the spin factor is looked up in a table; the slip factor is measured and the clamping pressure is adjusted to achieve a slip/spin ratio provided in a desired range is described herein. According to another aspect, an active mechanical clamping mechanism using a longitudinally movable contact point is also described.
摘要:
A pressure applying mechanism for a toric-drive Continuously Variable Transmission (CVT) that comprises two opposed elements each with internal V-shaped ramp surfaces and at least three ball bearings interposed between the elements wherein rotation of one element causes the mechanism to expand in the longitudinal direction and thus generate an appropriate pressure between a drive disk and a driven disk. The invention further includes a pre-load mechanism comprising a washer for adjusting the pre-load on the pressure applying mechanism.
摘要:
Generally stated, various embodiments described herein concern a toroidal CVT provided with parking zones where the rollers are brought when the CVT is powered down. More specifically, a portion of the toroidal surfaces of the disks is reserved as a parking zone therefore preventing premature wear and/or damages to the working portion of the disks.
摘要:
A transmission arrangement for transmitting power from a power source to an electrical generator. The transmission arrangement comprises a continuously variable transmission (CVT) and an alternative transmission that is more efficient at transmitting power than the CVT. The transmission arrangement further comprises a power mixing mechanism for combining power from the CVT and the alternative transmission into a combined power output to be provided to the electrical generator. The percentage of CVT power within the combined power output decreases as the power supplied by the power source increases.
摘要:
A transmission arrangement for transmitting power from a power source to an electrical generator. The transmission arrangement comprises a continuously variable transmission (CVT) and an alternative transmission that is more efficient at transmitting power than the CVT. The transmission arrangement further comprises a power mixing mechanism for combining power from the CVT and the alternative transmission into a combined power output to be provided to the electrical generator. The percentage of CVT power within the combined power output decreases as the power supplied by the power source increases.
摘要:
Generally stated, various embodiments described herein concern a toroidal CVT provided with parking zones where the rollers are brought when the CVT is powered down. More specifically, a portion of the toroidal surfaces of the disks is reserved as a parking zone therefore preventing premature wear and/or damages to the working portion of the disks.
摘要:
An earth working vehicle which has an internal combustion engine and a driveline for establishing a driving relationship between the internal combustion engine and wheels of the earth working vehicle. The driveline includes a mechanical CVT. The earth working vehicle also has a control for manual operation by a driver of the earth working vehicle, the control operable by the driver to select among at least two modes of operation, namely a first mode of operation and a second mode of operation, the selection of the first mode of operation corresponding to a command to cause the vehicle to move forward, the selection of the second mode of operation corresponding to a command to cause the vehicle to move backwards. The earth moving vehicle also has an electronic controller. While the vehicle is in motion, the electronic controller is responsive to a change of a mode of operation made via the control and indicating a command to reverse a direction of travel of the vehicle, to issue a control signal to the mechanical CVT to cause the mechanical CVT to downshift.