QUOTE(13_baron @ Feb 24 2014, 06:24 PM)
tomorrow i have appointment at CoSE.there a several issue i want them inspect.first i need advice from forumers here.
1. most susah hati.when i reverse my engine really noise like keta control and bunyi cit cit cit and that sound happen again when i switch on aircond.
2. steering not centre and my car seems to left.
3. steering vibrate when i reach 120km/h.
4. jerking when reverse.
and im curious usually cvt change gear at waht rpm?
my car is exec variant..a month years old..
Perhaps you should read this to know how a CVT works with regards to 'gear changing'.
The CVT replaces the gears with two variable-diameter pulleys, each shaped like a pair of opposing cones, with a metal belt or chain running between them. One pulley is connected to the engine (input shaft), the other to the drive wheels (output shaft). The halves of each pulley are moveable; as the pulley halves come closer together the belt is forced to ride higher on the pulley, effectively making the pulley's diameter larger.
Changing the diameter of the pulleys varies the transmission's ratio (the number of times the output shaft spins for each revolution of the engine), in the same way that a 10-speed bike routes the chain over larger or smaller gears to change the ratio. Making the input pulley smaller and the output pulley larger gives a low ratio (a large number of engine revolutions producing a small number of output revolutions) for better low-speed acceleration. As the car accelerates, the pulleys vary their diameter to lower the engine speed as car speed rises. This is the same thing a conventional transmission does, but instead of changing the ratio in stages by shifting gears, the CVT continuously varies the ratio -- hence its name.
http://cars.about.com/od/thingsyouneedtoknow/a/CVT.htmThis post has been edited by Subber: Feb 24 2014, 08:00 PM