Quote:
Originally Posted by GripperDon
Actually the NAH like the Pirus Camry have a continuously variable ration transmission. These systems are step-less and provide any ratio required.
I owned two Nissan Murano's before with the same type transmissions.
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I must be nuts to question an engineer but I don't believe eCVT in the Toyota/Nissan is the same as the CVT's you had in your Muranos.
The eCVT is actually called the Power Split Device and is more like a differential than a transmission. It only has a single gear ratio,
http://eahart.com/prius/psd/
http://www.cleangreencar.co.nz/page/prius-transmission
It has some of the advantages of a CVT but doesn't work the same way. The electric traction motor (M2) and the drive wheels have a fixed ratio. The ECU controls the speed/load of the generator (M1) and the gas engine to manage the power output. I read somewhere that the electric motor has maximum torque at 0 rpm so a low gear isn't needed to turn the wheels from a dead stop.