2019 Silverado Leads Industry With Dynamic Fuel Management

Posted on 19. May, 2018 by in GM Canada

2019 Silverado Leads Industry With Dynamic Fuel Management

Segment-first record offers 17 opposite modes of cylinder deactivation






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DETROIT (Friday, May 18, 2018) — The all-new 2019 Chevrolet Silverado 1500 will offer a many modernized gasoline V-8 engines in a brand’s history: updated versions of a proven 5.3L and 6.2L V-8s with Dynamic Fuel Management. This industry-first cylinder deactivation record enables a engines to work in 17 opposite cylinder patterns to optimize energy fibre and efficiency.

“Chevrolet initial introduced a Active Fuel Management cylinder deactivation complement in 2005, and Dynamic Fuel Management is a healthy course of a technology,” pronounced Jordan Lee, Small Block arch engineer. “Dynamic Fuel Management enables usually a cylinders indispensable to broach a energy we want, seamlessly delivering a best change of energy and fuel economy.”

Compared to Active Fuel Management, that alternates between eight- and four-cylinder modes, DFM facilities 17 cylinder patterns. That larger management mixes cylinder patterns constantly to optimize potency and energy fibre during all speeds.

During an industry-standard exam schedule, a 2019 Silverado 2WD with a 5.3L and DFM operated with fewer than 8 active cylinders some-more than 60 percent of a time, 9 percent some-more than a comparably versed 2018 indication with AFM.  

DFM is powered by a worldly controller that invariably monitors each transformation of a accelerator pedal and runs a formidable method of calculations to establish how many cylinders are compulsory to accommodate a driver’s requested torque. It can make this integrity 80 times per second.

An electromechanical complement deactivates and reactivates all 16 of a engine’s hydraulic valve lifters, determining valve actuation. The complement uses solenoids to broach oil vigour to control ports in a lifters, that activate and deactivate a lifters’ latching mechanisms. When a cylinder is deactivated, a two-piece lifters effectively tumble on themselves to forestall them from opening a valves. When a cylinder is reactivated, solenoids send an oil vigour vigilance to a control ports on a lifters and a latching resource restores normal function, permitting a valves to open and close.

“The increasing variability of Dynamic Fuel Management means a engine will work some-more mostly with a reduced series of cylinders, that saves fuel opposite a board,” pronounced Lee. “Better yet, a transitions are pure and since a complement is torque-based, you’ve always got that gratifying feeling of energy on direct that comes from Chevy’s Gen V Small Block V-8 engines.”

The 5.3L V-8 with DFM is SAE-certified during 355 horsepower (265 kW) and 383 lb-ft of torque (519 Nm) and is matched with a Hydra-Matic eight-speed involuntary transmission.

The 6.2L with DFM — a largest and many absolute gas V-8 in a shred — is SAE-certified during 420 horsepower (313 kW) and 460 lb-ft of torque (623 Nm) and is interconnected with a Hydra-Matic 10-speed involuntary transmission.

Both transmissions underline enhancements designed to urge change quality, as good as a new centrifugal pendulum absorber torque converter that reduces vibrations to urge smoothness, quite during cylinder deactivation events.

The engines also underline driver-selectable stop/start record that helps save fuel in stop-and-go traffic. The 5.3L chronicle is customary in LTZ and High Country models and accessible on LT, RST and Trail Boss. The 6.2L is accessible in LTZ and High Country. Both engines will be built during General Motors’ Tonawanda Engine Plant in Buffalo, New York.

The Silverado’s customary 4.3L V-6, and E-85-capable 5.3L V-8 implement Active Fuel Management.

The 2019 Silverado goes on sale this fall. Transport Canada fuel economy estimates and towing/payload capacities are not accessible nonetheless and will be announced closer to launch.

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