Saintor
29/07/2005, 08h48
La boite DSG utilisée par VW/Audi.
http://vortex3.rely.net/artman/publish/volkswagen_news/article_501.shtml
Volkswagen Group’s Direct Shift Gearbox (DSG) combines the ease of an automatic car with the efficiency and flexibility of a manual.
While a conventional gearbox works with one clutch, the DSG transmission has two – one in gear, while the second has the next gear preselected. When the gears need to shift, the second clutch takes the load, while the first preselects the next gear. The whole process takes no more than three to four hundredths of a second – faster than the blink of an eye!
DSG transmissions also have a ‘tiptronic’ function, allowing gears to be manually selected. Tiptronic changes have a more ‘sporty’ feel.
There are several benefits of the system. These include improved acceleration and refined uninterrupted driving. DSG is the first of its kind to feature in a production car, demonstrating Volkswagen Group’s ongoing commitment to developing remarkable technology.
Exemple sur une Audi A3 offerte au même pricx qu'une tiptronic:
0-100 km/h in seconds: 6.7 (DSG); 6.9 (6-speed manual)
Top track speed: 209 km/h¹
Fuel economy estimates (city/highway)²:
DSG: 9.7/7.2
manual: 10.2/7.1
Je suis surpris de voir qu'elle n'est pas encore proposée sur les A4.
Même BMW a décidé d'abandonner sa transmission SMG et d'épouser cette nouvelle technologie sous peu; leur boite s'appellera ZSG et devrait apparaitre en même que la 335i Turbo.
http://vortex3.rely.net/artman/publish/volkswagen_news/article_501.shtml
Volkswagen Group’s Direct Shift Gearbox (DSG) combines the ease of an automatic car with the efficiency and flexibility of a manual.
While a conventional gearbox works with one clutch, the DSG transmission has two – one in gear, while the second has the next gear preselected. When the gears need to shift, the second clutch takes the load, while the first preselects the next gear. The whole process takes no more than three to four hundredths of a second – faster than the blink of an eye!
DSG transmissions also have a ‘tiptronic’ function, allowing gears to be manually selected. Tiptronic changes have a more ‘sporty’ feel.
There are several benefits of the system. These include improved acceleration and refined uninterrupted driving. DSG is the first of its kind to feature in a production car, demonstrating Volkswagen Group’s ongoing commitment to developing remarkable technology.
Exemple sur une Audi A3 offerte au même pricx qu'une tiptronic:
0-100 km/h in seconds: 6.7 (DSG); 6.9 (6-speed manual)
Top track speed: 209 km/h¹
Fuel economy estimates (city/highway)²:
DSG: 9.7/7.2
manual: 10.2/7.1
Je suis surpris de voir qu'elle n'est pas encore proposée sur les A4.
Même BMW a décidé d'abandonner sa transmission SMG et d'épouser cette nouvelle technologie sous peu; leur boite s'appellera ZSG et devrait apparaitre en même que la 335i Turbo.