Patent ID: 7614973

Claim:
An infinitely variable transmission with two operating modes for a motor vehicle, comprising: a first main power branching path with a compound epicyclic gear train configured to link a combustion engine to wheels of the vehicle; a second power branching path with a first simple epicyclic gear train; two electrical machines forming a continuous speed controller; a second simple epicyclic gear train configured to change the operating modes, the second simple epicyclic gear train including a first member and a second member a sliding sleeve including dog toothing configured to be in engagement with the first member while the sliding sleeve is in a first position associated with a first operating mode of the operating modes, and the dog toothing configured to be in engagement with the second member while the sliding sleeve is in a second position associated with a second operating mode of the operating modes; and a hydraulic actuator configured to displace the sliding sleeve from the first position to the second position and from the second position to the first position, wherein the dog toothing of the sliding sleeve is engaged with both the first member and the second member while being displaced between the first position and second position.