- Peterbilt automatic transmission how to#
- Peterbilt automatic transmission manuals#
- Peterbilt automatic transmission manual#
Peterbilt automatic transmission manual#
“Changing gears, and having the additional control over the vehicle that a manual transmission gives you, is an integral part of that,” he says.īut fleets are gravitating toward automatic transmissions – and in surprisingly high numbers.
Peterbilt automatic transmission how to#
You know – ‘Instead of teaching new drivers how to drive, just give them all an automatic transmission, and turn them loose on the highway.’ ”Ĭiprian, however, sees truck driving as a skill – one in which a truck driver needs to be engaged to do it properly. “I can understand why fleets like AMTs,” he says. Several OEMS have developed integrated powertrains that share proprietary information between the engine and transmission to deliver optimal fuel economy consistently. Ciprian never has driven an AMT and says he never will, preferring to stick with an Eaton-Fuller 18-speed manual gearbox. “I’m a truck driver, not a steering wheel holder,” says Carl Ciprian, a driver with Fayette, Ala.-based N&N Transport. What they’ve done with those products is amazing.”īut many drivers – primarily older ones – feel that automatic transmissions somehow detract from a skill set they’ve honed over decades.
Peterbilt automatic transmission manuals#
“It took a lot of work to perfect automated manuals to engage a dry clutch and generate well-synchronized shifts. “Both types of transmissions have two pedals and a shift pad instead of a gearshift lever,” Rutherford says. These transmissions have a torque converter to enable powershifts of the planetary epicyclic gearing units that provide the various gear ratios. “In this context, an automatic for a Class 8 truck is usually fully automatic, like a typical car transmission, with planetary gearing with several multidisc packs for clutches,” says Ed Saxman, product marketing manager with Volvo Trucks North America. True automatic transmissions feature planetary gearing with disc packs for clutches and torque converters. The basic difference is that automated manuals are manual gearboxes, with all the clutch actuation and gearshifts handled by electronically controlled systems. Adherents argue they provide 100 percent power and double rim pull, making them ideal for vocational applications. True automatic transmissions feature fluid drive and a torque convertor. Both are two-pedal designs, and most drivers probably would be hard-pressed to tell much of a difference between them in real-world driving situations. Two types of automatic transmissions are available for heavy-duty trucks: Automated manual transmissions and automatic transmissions. One reason was the inability of mechanical engines and transmissions to “talk” to one another and ensure optimal vehicle performance across a broad array of applications and road conditions.
automated transmissions: Data-driven tech better than complete control?"Īs AMTs increase their market penetration and engines and transmissions share more data, AMT performance issues are getting smoothed out.Īdapting automatic transmissions for use in trucking has proven to be difficult. The 2013 feature, originally titled "Manual v. Following find a variety of reporting on transmissions' development over the last eight years, followed by then-Equipment Editor Jack Roberts' feature on manufacturers' move toward AMTs and automatics originally penned in 2013, a fascinating look at transmission technology's development at a crucial moment in time - as companies moved to pair AMTs more closely to their engines with sophisticated communications between the two:įind more via the "transmissions" search page.
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