A vehicle drive-force transmitting apparatus including: a mode switching clutch; a torque converter; a lock-up clutch included in the torque converter; a switching solenoid valve configured to output a switching pressure for switching an operating mode of the mode switching clutch between a one-way mode and a lock mode; and a lock-up clutch control valve configured to switch an operating state of the lock-up clutch between an engaged state and a released state. The mode switching clutch is to be placed in the lock mode when the switching pressure is supplied from the switching solenoid valve to the mode switching clutch. The lock-up clutch control valve is configured to receive the switching pressure supplied from the switching solenoid valve, and to switch the operating state of the lock-up clutch to the released state when the switching pressure is supplied to the lock-up clutch control valve.

A transmission controller of a toroidal continuously variable transmission includes a gain setting unit that adjusts a gain of closed-loop control for calculating a target value of a roller position in accordance with a change in a rotation speed of a disc in a first rotation speed range and a second rotation speed range higher than the first rotation speed range. The gain setting unit changes, in the first rotation speed range, the gain so that sensitivity of the closed-loop control decreases with an increase in the rotation speed, and changes, in the second rotation speed range, the gain so that a rate of decrease in the sensitivity of the closed-loop control with the increase in the rotation speed is smaller than that in the first rotation speed range.

A transmission controller of a toroidal continuously variable transmission includes a gain setting unit that adjusts a gain of closed-loop control for calculating a target value of a roller position in accordance with a change in a rotation speed of a disc in a first rotation speed range and a second rotation speed range higher than the first rotation speed range. The gain setting unit changes, in the first rotation speed range, the gain so that sensitivity of the closed-loop control decreases with an increase in the rotation speed, and changes, in the second rotation speed range, the gain so that a rate of decrease in the sensitivity of the closed-loop control with the increase in the rotation speed is smaller than that in the first rotation speed range.

A method for controlling a continuously variable transmission including a primary oil chamber, a secondary oil chamber, an oil pump provided in an oil passage between the primary oil chamber and a secondary oil chamber. The method including determining whether a required downshift speed is faster than an allowable value; setting a target piston position of the primary oil chamber; setting a target oil pressure of the primary oil chamber; and increasing priority of a position feedback control based on the target piston position in the setting of the target piston position when it is determined that the downshift speed is slower than the allowable value and increasing priority of a hydraulic feedback control based on the target oil pressure in the setting of the target oil pressure when it is determined that the downshift speed is faster than the allowable value.

The alternative energy system in this patent application use three simple systems: angular momentum, centrifugal force, and relative motion to create one of the most powerful alternative engines in the world. The design of this engine can be used across the broad spectrum of transportation including space.

Centrifugal force can be increased by increasing either the speed of rotation or the mass of the body or by decreasing the radius, which is the distance of the body from the center of the curve. Increasing the mass or decreasing the radius increases the centrifugal force in direct or inverse proportion, respectively, but increasing the speed of rotation increases it in proportion to the square of the speed; that is, an increase in speed of 10 times say from 10 to 100 revolutions per minute, increase the centrifugal force by a factor of one hundred. * Written by the editors of Encyclopedia Britannica last updated Feb. 13, 2018.

The problem is that angular momentum produces a rotating, not a linear force. One of the problems confronted in the patent application was the changing of a rotating centrifugal to a linear centrifugal force through the science of relativity to harness one of the most powerful alternative types of energy angular momentum.

It is seen in atoms, where electrons move above the speed of light, in calculus where Sir Isaac Newton calculated the forces of gravity on the planets, in Tesla engines, in Nascar flywheels, UPS systems, and in every wheel that spins from the old stage coaches spoked wheels to the stealth bomber engines of today.

This centrifugal force is quadrupled as its velocity doubles, as proven by its formula and endless scientific documentation, making it one of the best choices for an alternative energy source in a world of depleting fossil fuels.

This patent application illustrates an angular momentum engine that produces well over 6.208 foot pounds of centrifugal force for use in the automotive industry. As the centrifugal force created by angular momentum is only limited by its velocity and mass, these accelerating forces can easily reach a half million foot pounds of centripetal force in larger engines for space flight.

A power generation system includes a continuously variable transmission, a power generator, a transmission driving device, an output-side speed detector, and electric power load device, and a controller. The electric power load calculation device detects current values and current values of respective phases of three-phase alternating current generated by the power generator, calculates electric power load of the power generator based on the detected values, and executes filtering by attenuating a higher harmonic of a set frequency when calculating the electric power load of the power generator. The controller executes feedback control of calculating and outputting a gear change command to the transmission driving device so an output-side rotational speed detected by the output-side speed detector becomes equal to an output-side target rotational speed corresponding to the set frequency. The controller also executes feedforward compensation of correcting the gear change command, based on the calculated electric power load.

A power generation system includes a continuously variable transmission, a power generator, a transmission driving device, an output-side speed detector, and electric power load device, and a controller. The electric power load calculation device detects current values and current values of respective phases of three-phase alternating current generated by the power generator, calculates electric power load of the power generator based on the detected values, and executes filtering by attenuating a higher harmonic of a set frequency when calculating the electric power load of the power generator. The controller executes feedback control of calculating and outputting a gear change command to the transmission driving device so an output-side rotational speed detected by the output-side speed detector becomes equal to an output-side target rotational speed corresponding to the set frequency. The controller also executes feedforward compensation of correcting the gear change command, based on the calculated electric power load.

In a hydraulic control device, a state determination unit of a control unit determines whether a second pump is in a boosting operation or in a transition state. If the state determination unit has determined that the second pump is in the boosting operation or in the transition state, a valve-opening detection unit determines whether a check valve is opened. If the valve-opening detection unit has determined that the check valve is opened, a controller stops the second pump or decreases the rotation number of the second pump.

Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT). In one embodiment, a control system is adapted to facilitate a change in the ratio of a CVT. In another embodiment, a control system includes a stator plate configured to have a plurality of radially offset slots. Various inventive traction planet assemblies and stator plates can be used to facilitate shifting the ratio of a CVT. In some embodiments, the traction planet assemblies include planet axles configured to cooperate with the stator plate. In one embodiment, the stator plate is configured to rotate and apply a skew condition to each of the planet axles. In some embodiments, a stator driver is operably coupled to the stator plate. Embodiments of a traction sun are adapted to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces for a CVT are disclosed.

In a hydraulic control device, a hydraulic sensor is provided on an intake side of a second pump where first oil is taken in and a line pressure sensor is provided on a discharging side of the second pump where the second oil is discharged. A control unit controls driving of the second pump by controlling a motor on the basis of an output pressure detected by the output pressure sensor or a line pressure detected by the line pressure sensor.