Why is there a burnt smell during sudden acceleration with CVT?

[Amara]

It is caused by the friction of the clutch plates. Here is the relevant information: 1. Avoid prolonged sudden acceleration: Long-term high-speed sudden acceleration is an abnormal condition for the engine. Rapidly pressing the accelerator increases fuel injection, which may lead to incomplete combustion and carbon buildup. Excessive RPM and frequent sudden acceleration can also cause the engine to overheat, reducing its sealing performance. 2. CVT shifting structure: The core shifting structure of a CVT includes two sets of hydraulically controlled cone pulleys with variable angles, which clamp a steel belt. During shifting, the cone pulleys change their angles "bit by bit" under hydraulic control, and the synchronized angle changes alter the steel belt's angle, thus changing the gear ratio. The key term is "bit by bit," where the numbers can be infinitely small, meaning each tiny change in the cone pulley angle represents a "gear." Since the numbers are infinitely small, the gears are effectively infinite, making upshifting a continuously variable transmission with no distinct gear levels.