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AssigneeVan Doorne's Transmissie B.V.
InventorsWilhelmus Cornelus Waltherus Maria Roovers, Chi Chung Choi
Estimating the term…
A method for controlling the transmission ratio (input speed/output speed) of a continuously variable transmission, in particular for a motor vehicle. The transmission can be set to a second operational state as a result of energization by an activation signal. In the second operational state, the transmission ratio increases or decreases in the event of a decrease of increase, respectively, in the output speed of the transmission. In the second operational state, the transmission ratio is controlled using a control line, which intersects a point determined by the instantaneous input speed and instantaneous output speed of the transmission at the instant of commencement of said second operational state and also intersects a starting point determined by an input speed equal to zero and an output speed notionally less than zero. The invention also relates to an apparatus for carrying out the method.
A method for controlling a transmission ratio (input speed/output speed) of a continuously variable transmission in a vehicle, said method setting said transmission ratio from a first operational state to a second operational state as a result of energization by an activation signal, said second operational state causing said transmission ratio to increase when an output speed of said transmission decreases and to decrease when said output speed of said transmission increases, comprising the steps of:
A continuously variable transmission, for a motor vehicle, comprising control means for setting a transmission ratio of said transmission to a first operational state, said control means having means for setting said transmission to a second operational state in which the transmission ratio is controlled by means of a control line, which intersects a point determined by an instantaneous input speed and an instantaneous output speed of said transmission at an instant of commencement of said second operational state and intersects a starting point determined by an input speed equal to zero and an output speed notionally less than zero, said control means having input signals corresponding to parameters defining operational conditions of said control means in said second operational state.
Dependencies are inferred from the claim text.