CVT and Steermatic
CVT and Steermatic
Hi everyone
I am not an expert in cars, not even a knowledgable person when it comes to technicals but here is my attempt to compare Honda's CVT and Steermatic transmissions. It may be totally wrong, correct me if so
As we all know, CVT stands for continuous variable transmission. This is acheived by use of a variable diameter gear (gararee) instead of using fixed gears. There are many ways to build variable diameter gear system, one of them is to use a pair of moveable pulleys instead of gear (gararee). Pulleys move closer to increase diameter and move away to decrease it. This
movement is controlled by car's computer (aka ECU). Computer senses speeds of wheels and engine to adjust optimal gear ratio ensuring best consumption
Now if in this system you get some control on when/how to move pulley and be able to choose a diameter, you get control on gear ratios. By getting control to gear ratios, you can simulate
manual transmission on a CVT. This is exactly what steermatic does. When on auto mode, its simply a CVT but when on manual mode it and give you control to switch gear i.e., control the pulley movements to control gear ratio, hence a feel of manual transmission
If we can update ECU to provide such a feature for a 1.3L City Vario, we get a 1.3L City Vario Steermatic (or doormatic if we put shift switches on door, or roofmatic, footmatic etc).
You opinion/criticism is welcome. Also, can someone confirm this or otherwise correct me
If this analysis is wrong, please forgive me for waisting you time, otherwise send THANKS for sharing such a valuable thought
Regards
1 Answer
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I am not an expert in cars, not even a knowledgable person when it comes to technicals but here is my attempt to compare Honda's CVT and Steermatic transmissions. It may be totally wrong, correct me if so
As we all know, CVT stands for continuous variable transmission. This is acheived by use of a variable diameter gear (gararee) instead of using fixed gears. There are many ways to build variable diameter gear system, one of them is to use a pair of moveable pulleys instead of gear (gararee). Pulleys move closer to increase diameter and move away to decrease it. This
movement is controlled by car's computer (aka ECU). Computer senses speeds of wheels and engine to adjust optimal gear ratio ensuring best consumption
Now if in this system you get some control on when/how to move pulley and be able to choose a diameter, you get control on gear ratios. By getting control to gear ratios, you can simulate
manual transmission on a CVT. This is exactly what steermatic does. When on auto mode, its simply a CVT but when on manual mode it and give you control to switch gear i.e., control the pulley movements to control gear ratio, hence a feel of manual transmission
If we can update ECU to provide such a feature for a 1.3L City Vario, we get a 1.3L City Vario Steermatic (or doormatic if we put shift switches on door, or roofmatic, footmatic etc).
You opinion/criticism is welcome. Also, can someone confirm this or otherwise correct me
If this analysis is wrong, please forgive me for waisting you time, otherwise send THANKS for sharing such a valuable thought
Regards
Gari.pk User 3854 asked on 08 Jul 2010 13:50:31 pm


gr8 thing bro.
sir are you sure that steermatic is only a governing device over cvt...
i thought that it was normal automatic with a governing device which change change the ratios on driver's will.. anyway i am not sure of my claim and if you have read some where hen you must be correct.
and one more thing that i wana add. that vario is belt driven cvt in which as explained above diameter is changed by moving the pulleys. it may be controlled by a computer in vatio but this technology is quiet old nd in older times it was done without computers and electronics....
sir are you sure that steermatic is only a governing device over cvt...
i thought that it was normal automatic with a governing device which change change the ratios on driver's will.. anyway i am not sure of my claim and if you have read some where hen you must be correct.
and one more thing that i wana add. that vario is belt driven cvt in which as explained above diameter is changed by moving the pulleys. it may be controlled by a computer in vatio but this technology is quiet old nd in older times it was done without computers and electronics....