Patent ID: 7534185
Filing Date: 2009-05-19
Classification: B60K,F16H,Y02T

Abstract:
1. Continuously variable mechanical transmission mechanism that allows extending the range of variation that contains: A) a core that comprises: a core input shaft (I) and a core output shaft ( a first differential (Da) and a second differential (Db), a variator (V) connected to a first shaft ( having each one of said first differential (Da) and second differential (Db) a second shaft connected to the core input shaft (I) and a third shaft connected to the core output shaft (o); and B) an input shaft (I′) of the mechanism configured to be alternatively connected to the core input shaft (I) and to the core output shaft (o), and an output shaft (o′) of the mechanism configured to be alternatively connected to the core output shaft (o) and to the core input shaft (I), so that when the input shaft (I′) of the mechanism is connected to the core input shaft (I), the output shaft (o′) of the mechanism is connected to the core output shaft (o), and when the input shaft (I′) of the mechanism is connected to the core output shaft (o), the output shaft (o′) of the mechanism is connected to the core input shaft (I), C) comprising the mechanism in addition four gear ratios units (R the connection between the input shaft (I′) of the mechanism and the core input shaft (I) is done via a first (R the connection between the input shaft (I′) of the mechanism and the core output shaft (o) is done via a second (R the connection between the output shaft (o′) of the mechanism and the core input shaft (I) is done via a third (S the connection between the output shaft (o′) of the mechanism and the core output shaft (o) is done via a fourth (S