Nissan's continuously variable transmissions (CVTs) have historically impressed us with their smoothness and efficiency. Nissan's latest announcement, in conjunction with its transmission supplier JATCO Ltd., could mean that its next generation of transmissions could be even more efficient.
Conventional CVTs work by pairing two variable conical pulleys with a belt to allow for infinitely variable gear ratios within the paired pulleys' ranges. However, due to friction constraints of the belt driven design, most CVTs have been limited to a maximum transmission ratio of 6:1.
Nissan's newest CVT combines the conventional belt-driven operation with an auxiliary gearbox … Read more