An exemplary infinitely variable transmission includes a planetary gear set situated in a drive train of an automotive vehicle and interfaced with a worm gear driven by an electrical motor continuously controlled by an electronic control unit in response to a torque demand. Another aspect may be selection of the worm gear helix angle to effect a balance between worm gear teeth friction and load placed on the worm gear by the planetary gear set, such that power required to drive the worm gear is minimized for all input load conditions.
Infinitely variable transmission
2015-07-21
Patent
Elektronische Ressource
Englisch
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / F16H Getriebe , GEARING |