Speaking of double clutching

Well, now that they can make AutoMatics, I wonder if that could be overcome? I have a hard time driving a Standard in a Car or Pick UP now, to used to my Rig

 

Synchronizers would add weight to the transmission, so that would be a negative.

 

Syncro's can not handle the torque generated by the engine and weight difference's. The auto shift trucks are using air shifters and computers to kill the engine for the split second it takes to shift. It also monitors the rpm's of the engine and the mainshaft of the transmission to allow it to shift when they match exactly.

 

I thought double clutching was just for your cdl test and when you're heavy as hell going up hills lol. Those were about the only times I ever did it. Wiseguy's right, after driving a rig for a while it's hard to shift a standard manual for regular cars and trucks.

 

Syncs are another piece that can go bad or break. Drivers, with practice can adapt without them. Considering the old junk I have to drive most of the time, double clutch is the least of my problems.

 

Who double clutches?????

I was taught that the clutch was for:
1) starting (and sometimes stopping);
2) when you miss a gear because you were distracted by a seat warmer next to you....

 

They got syncronized gearboxes in europe. Most straight trucks have them as well. I'd hate to have one myself. Thats something I don't need. Most drivers out here would tear them up anyway because they'd float them and destroy the syncros or blow up an engine by downshifting too early thus taking the engine way up past its operating range. Theres nothing to a Roadranger anyway.

 

Indeed we do and they are no problem to use, its like driving a car.

I cant see how an experienced driver would have a problem with a sync gear box. Never had an over revving problem, next to the speed displaying device is something called a tachometer, it shows you the revs. Its dead easy to maintain between 1000 and 1500 rpm staying within the green band changing up AND down and returning 10 mpg and in over 20 years Ive never blown an engine. Im not a Formula 1 driver Im a truck driver, its not a race. Its about professional and courteous driving.

When I return to my despatch (mainly doing day runs and home everynight) the office can tell via the Fleetboard management system on the truck if Ive over revved the engine or even if Ive had to slam the breaks on at anytime during my duty. They can pull up my entire shift in a report and I even download my driver card with my HoS digitally stored on it and tell if I have any infringements before the coffee machine has dispensed my drink.

Good bless Mercedes Benz trucks, fleetboard and digital tachos.

 

Cost is the only thing I have been able to come up with. Weight...ehh...syncro is a few ounces, so I doubt that is the reason. I do not understand why is is hard for you all to float (or double clutch) your personal car, only real difference is rpms, & how far to move the stick....well no range selector. I float my car at home, & have driven it for 220K of it's 340K live span (little honda civic).

Real reason for double clutching is to preserve tranny life. Listen to some that float.....grrrrr rrr rrind....thunk. Now I dont mean grind like feet on the dash pulling in for all you got, but more like an electric toothbrush. each time that happens, there is wear on the top of the gears, & like your tooth brush, continually doing this will wear the teeth.

my .02