November 15, 2011
In 1983, Heavy Vehicle Electronic License Plate (HELP), a private-public cooperative study and demonstration project, pioneered the nation’s first intelligent vehicle-highway system initiative for weigh and inspection stations. HELP’s Crescent Project, implemented in 1991, provided the technology known today as PrePass, a system that allows many ...
November 9, 2011
Deep cycle batteries make it practical for drivers to draw from the batteries during rest periods without shortening battery life. This can eliminate overnight idling or the need for other alternative power systems. Redesigned from lead-acid batteries of the past, deep cycle batteries use thicker plates, ...
October 24, 2011
The Series 60, able to deliver the best fuel economy in the market, resulted in a two-decade-plus period of market domination among large fleets for its manufacturer. It was the first heavy-duty diesel using an overhead camshaft to operate electronic unit injectors directly (no use ...
October 17, 2011
The flaws of the paper log book system as a way to enforce hours of service regulations have been known for decades, but the transition to electronic onboard recorders has been slow. The devices were first examined by the federal government for potential use in ...
October 11, 2011
During the late 1980’s Grote Industries adapted LED technology for tractor and trailer use, substituting high-tech, solid-state electronic devices for the fragile glowing wire filament of an incandescent bulb. The first LED truck lamp was a clearance marker lamp with amber LEDs that went on ...
June 7, 2011
Today’s cleaner-running engines would be impossible without the air-to-air cooler.
June 2, 2011
GPS units and software to provide instant onboard navigation help drivers reduce out-of-route miles and time wasted searching for a delivery or pickup point while improving on-time performance.
May 31, 2011
These hoods were practical, since the hood was not a structural member of the cab or chassis.
May 29, 2011
Synthetic transmission and axle lubes created a quantum leap forward in warranty mileage limits and increased change intervals.
May 27, 2011
The first practical means of shutting down the main diesel overnight in extreme weather was the auxiliary power unit.
May 19, 2011
The Peterbilt 372 aerodynamic cabover was believed by many experts to be the most aerodynamically perfect truck ever built at the time.
April 19, 2011
First installed on a Detroit Diesel Series 92, electronically controlled unit injector reduced emissions and increased fuel economy.
April 19, 2011
Nalcool (also known as Nalco) created a “biscuit”-like additive that put supplemental coolant additive into coolant to prevent cylinder liner cavitations.
April 8, 2011
The 1961 Cummins NH 220 855-cubic-inch diesel engine achieved major advances in basic design with stronger internal components that resulted in more horsepower and improved fuel economy.
April 8, 2011
The cab air conditioning with roof-mounted condenser system provided greatly increased driver comfort in hot weather conditions while also reducing wind noise in the cab.
March 25, 2011
Today’s clean engines would be impossible without this remarkable device.
March 17, 2011
The Vorad collision warning system was designed to alert an inattentive driver or one blinded by fog of a slow moving object ahead.
March 2, 2011
Rather than bolting a separate structure made elsewhere to the back of an existing cab design, Volvo introduced in 1991 a cab and sleeper manufactured as a single unit in the same facility.
February 23, 2011
LED lamps eliminated the hot, thin, flexible and vulnerable tungsten filament of light bulbs and replaced it with solid-state electronics.
February 17, 2011
Kenworth engineers found that the immense radiator and high, flat-topped hood of large conventionals was a primary source of wind drag.
February 16, 2011
Extended Life Coolant, originated at Texaco, provided organic acid protection against corrosion and scale.
February 10, 2011
Clessie Cummins' turned his diesel engine into an air compressor to help vehicles stop more efficiently.
December 31, 2010
Motor vehicles need to run on DC (direct current) because batteries must be charged with a continuous flow of electrons moving in one direction. But generators that produce alternating current, or current that constantly moves back and forth, are far more efficient. These are what ...
December 24, 2010
In pre-cure process widely used today, the tread is made separately at a high temperature and then bonded to the tire casing at a lower temperature.
December 16, 2010
Air from the compressor contains a lot of moisture that condenses out of the air as soon as it cools because of the pressure.
November 23, 2010
Mack researchers changed the future of diesel engines as they experimented with "torque rise."
October 24, 2010
Eaton’s Fuller division had excited the trucking world with the Roadranger range shift concept in the mid-1950s, doing away with the awkward twin-stick shifts of earlier years. The two-countershaft redesign was not obvious to the driver, but the industry still benefits from it in terms ...
October 22, 2010
Freightliner was a pioneer in building short cabovers because the company, having been started by a fleet, had more incentive for higher profitability with regard to rig length and weight. “In the late 1930s, Leland James, president of Portland, Oregon-based trucking company Consolidated Freightways (CF), sought ...
October 5, 2010
The gear fast, run slow approach to engine design was a natural evolution after turbocharging came along with its ability to allow the engine to produce more power at a lower rpm.
September 27, 2010
Turbocharging truck diesels created a quantum leap forward in power, torque characteristics and fuel economy.
September 17, 2010
The Air-Shield retro-fit guided air over the top of the trailer, thus greatly reducing drag at highway speeds.
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