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Direct shift gearboxes

Categories: Latest NewsRelease time: 2017-12-30 16:13:00
Source: ZHAOWEIEditor: ZHAOWEI Author: ZHAOWEI

Direct shift gearboxes (DSG)

Technical summary:
>Manual gearbox with automatic or semi-automatic control
>Dual clutch, twin shaft
>Predictive pre-selection of gears
 
DSG gearbox is an recent addition to the suite of technology now becoming readily available in production cars. The idea behind DSG is to provide fast gear changes with the longevity of a conventional automatic gearbox.
DSG is essentially a computer controlled manual gearbox complete with two clutches which each engage a different selection of gears. The charming part of the system is that the computer can predict which gear you are likely to select and pre-select this. When shifting to the pre-selected gear, all the system needs to do is release one clutch and engage the other. This can be done very fast and results in lightning changes.
 
Advantages
>Provide rapid gear changes to expected gears
Disadvantages
>Might be heavy because of added cogs and shaft required 
>Relies on a computer to predict the gear that is likely to be chosen, unexpected changes can increase change time
>Expensive
 

 

Keywords in the article: Direct shift gearbox

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