Torotrak (Development) Ltd.
|Torotrak (Development) Ltd. Patent applications|
|Patent application number||Title||Published|
|20090305840||POWER TAKE OFF ARRANGEMENT FOR A MOTOR VEHICLE - A drive arrangement is disclosed for a motor vehicle power take off (PTO). The arrangement comprises a PTO shaft||12-10-2009|
|20090203486||RATIO LIMITING ARRANGEMENT - An arrangement is disclosed for providing an “end-stop” function for a variator in a continuously variable transmission. The variator (||08-13-2009|
|20090062065||POWERTRAIN CONTROL METHOD AND SYSTEM - The invention concerns a method of operating a motor vehicle powertrain comprising an infinitely variable transmission and an engine. The transmission comprises a rotary transmission input coupled to the engine, a rotary transmission output coupled to the vehicle wheels, a variator which provides a continuously variable ratio (the “variator ratio”), and gearing for coupling the variator between the engine and the transmission output in such a manner that the ratio of transmission output speed to transmission input speed (the “reciprocal transmission ratio”) is a function of the variator ratio. The available range of variator ratios maps onto both forward and reverse reciprocal transmission ratios, and at a particular variator ratio (the “geared neutral ratio”) the transmission output is stationary despite its being coupled through the transmission to the rotating transmission input. The comprises sustaining engine speed in a range of low reciprocal transmission ratios containing and extending to either side of geared neutral, by applying a drive torque demand to the engine even while the powertrain is operating in overrun.||03-05-2009|
|20090048054||CONTINUOUSLY VARIABLE TRANSMISSION - In a continuously variable transmission (“CVT”) using a toroidal-race continuously variable ratio device and a planetary gear mechanism, the rotation of the input shaft (||02-19-2009|
Patent applications by Torotrak (Development) Ltd.