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Jacobs, Tula collaborate on cylinder deactivation hardware development

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Jacobs, tula collaborate on cylinder deactivation hardware development
With Jacobs’ Cylinder Deactivation technology cylinder deactivation mechanisms originally designed for the company’s High Power Density (HPD) engine brake are used in the valvetrain to disable the opening of the intake and exhaust valves. (Courtesy: JACOBS VEHICLE SYSTEMS).

BLOOMFIELD, Conn. — Jacobs Vehicle Systems, a worldwide manufacturer of heavy-duty diesel engine retarding systems and valve actuation systems, has entered into a collaboration with internal combustion controls company Tula Technology.

The two businesses will work closely together to enable Jacobs to further develop cylinder deactivation technologies, which reduce engine fuel consumption and emissions, according to Robb Janak, director new technology, Jacobs Vehicle Systems

Jacobs introduced its Cylinder Deactivation (CDA) technology for medium- and heavy-duty commercial vehicle engines in 2018.

Tula, unusual among engine technology businesses in having headquarters in Silicon Valley, has licensed its Dynamic Skip Fire (DSF) technology onto  major automotive OEM gasoline applications.

The new working partnership between the two companies will utilize Tula’s DSF controls technology to support Jacobs’ expertise in diesel deactivation hardware development.

“Jacobs is very excited to partner with Tula to progress cylinder deactivation technology by combining our companies’ strengths,” Janak said. “Vehicle manufacturers are looking for new and improved technologies to comply with stricter legal limits on CO2 and NOx emissions. New test measures, such as Real Driving Emissions and CARB Low Load Cycle for heavy duty trucks are encouraging the adoption of smarter technologies that address these requirements. Cylinder deactivation is a great solution, technically proven and cost effective.”

With Jacobs’ CDA, Janak said cylinder deactivation mechanisms originally designed for the company’s High Power Density (HPD) engine brake are used in the valvetrain to disable the opening of the intake and exhaust valves. The hydraulically-activated mechanism is integrated in a collapsing valve bridge system for overhead camshaft engines or with a collapsing pushrod system for cam-in-block engines. When this is combined with disabled injection in selected cylinders, multiple cylinders can be deactivated as needed. At low engine loads with three of six cylinders deactivated, fuel consumption can be improved by up to 20%.

Janak said Jacobs’ CDA reduces emissions by achieving higher exhaust temperatures by maintaining after-treatment temperatures for optimal efficiency of SCR (Selective Catalytic Reduction) systems, even when the engine is in idle or low load operation. CDA also enables faster warm-up after engine start-up of the after-treatment system and minimizes cooling of after-treatment during coasting. CDA additionally reduces camshaft friction, reduces pumping losses in part-load conditions, and can reduce or eliminate use of the intake throttle, all of which yields overall improvements in fuel consumption while simultaneously increasing exhaust temperatures.

“Tula is pleased to support our industry partner Jacobs Vehicle Systems in its development of Dynamic Skip Fire-enabling hardware for the diesel engine marketplace,” said John Fuerst, senior vice president of Engineering at Tula. “Tula has developed an infinitely variable cylinder deactivation system, integrating advanced digital signal processing and software with sophisticated engine control algorithms. This technology reduces fuel consumption of gasoline engines by 6-15% on real world drive cycles; the collaboration with Jacobs aims to enable Jacobs to develop and demonstrate deactivation hardware required for diesel engines.”

 

 

 

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Kenworth to collaborate with Meritor on T680E Electric powertrain development

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concept photo of Kenworth electric model
The electric Kenworth T680E will be a short-hood day cab in tractor configurations of 4x2 and 6x4 axles and as a 6x4 axle straight truck. The T680E will offer an operating range between 100 to 150 miles, depending on application. (Courtesy: Kenworth)

KIRKLAND, Wash. — Kenworth has announced it will collaborate with Meritor on electric powertrain development for Class 8 Kenworth T680E battery-electric vehicles.

The electric Kenworth T680E will be a short-hood day cab in tractor configurations of 4×2 and 6×4 axles and as a 6×4 axle straight truck. The T680E will offer an operating range between 100 to 150 miles, depending on application.

“The Kenworth T680E development in collaboration with Meritor is a major advanced technology step in Kenworth’s evolution of zero-emission electric powertrain solutions for our customers,” said Kevin Baney, Kenworth general manager and PACCAR vice president. “Initial production of the Kenworth T680E is expected to begin in the fourth quarter 2020 and ramp through 2021.”

Meritor, Inc. is a global supplier of drivetrain, mobility, braking and aftermarket solutions for commercial vehicle and industrial markets. Meritor is based in Troy, Michigan.

“We look forward to working closely with Kenworth to help develop the Kenworth T680E as an important, viable battery-electric answer for the day cab market,” said T.J. Reed, vice president of Global Electrification for Meritor.

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New Kenworth parts, service locations now open in Maryland and Nebraska

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Kenworth service location in Maryland
West Point Kenworth is approximately one hour south of Sioux City, Iowa, and located along Highway 275, a major trucking route in the area. (Courtesy: Kenworth)

WESTMINSTER, Md. And West Point, Neb. — Kenworth now offers additional locations for parts and services. Mid Atlantic Kenworth has added a full-service location in Westminster, Maryland, while Sioux Falls Kenworth has opened a new parts and services dealership in West Point, Nebraska.

Maryland

In Westminster, Maryland, the 17,400-square-foot facility features a full parts and service department, with 10 service bays to maximize customer uptime for truck operators passing through the area. A drivers’ lounge is available to customers while their trucks are serviced.

The facility, Kenworth Mid Atlantic Westminster is located on three acres, which offers customers ample room to park their trucks.

The Westminster, Maryland facility is located at 821 Baltimore Blvd. and its hours of operation are 7 a.m. to 5 p.m. Monday through Friday and 7 a.m. to 1 p.m. on Saturday.

Nebraska

With its new parts and service dealership in West Point, Nebraska, Sioux Falls Kenworth can now offer expanded support to fleets and operators in the greater Sioux City, Iowa area.

West Point Kenworth is approximately one hour south of Sioux City and located along Highway 275. The 12,800-square-foot building is situated on 3.5 acres. The facility features an 8,600-square-foot service department with eight service bays. Also included is a 1,200-square-foot parts retail display area and a 1,900-square-foot space for bulk storage.

The West Point facility is located at 1805 Sycamore St. in West Point. Hours of operation are from 8 a.m. to 5 p.m. Monday through Friday and 8 a.m. to 12 p.m. on Saturday.

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Agility partners with XStream Trucking to distribute aerodynamic TruckWings

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a patented design allows truckwings to swing out and retract
The patented TruckWings design incorporates folding panels made of impact-resistant, glass-reinforced composites attached to the rear sides and roof of the cab that automatically swing out to close the cab-to-trailer gap at highway speeds and retract at lower speeds. (Courtesy: Agility Fuel Solutions)

COSTA MESA, Cali. — Agility Fuel Solutions and XStream Trucking have announced that Agility will be the exclusive distributor of Xstream’s TruckWings aerodynamic systems for compressed natural gas (CNG) trucks in North America. Agility will also distribute TruckWings on a non-exclusive basis to the diesel truck market.

The patented TruckWings design incorporates folding panels made of impact-resistant, glass-reinforced composites attached to the rear sides and roof of the cab that automatically swing out to close the cab-to-trailer gap at highway speeds and retract against the rear of the cab at lower speeds to leave room for turning maneuvers.

“TruckWings is the first device which completely solves the turbulence problem created by the open area between the tractor and trailer that contributes significantly to a truck’s overall aerodynamic drag,” said Daniel Burrows, XStream Trucking’s founder and CEO. “We are pleased to now partner with Agility to offer TruckWings as a factory option for CNG trucks in North America.”

Agility, a business area of Hexagon Composites ASA, and XStream Trucking have previously partnered to provide TruckWings systems for over 750 CNG trucks used by major fleet operators. Agility’s leadership in providing clean fuel solutions for commercial vehicles coupled with its extensive customer base and value-added aftermarket services will expand XStream’s TruckWings solution to reach the growing CNG truck market throughout North America.

“Agility’s trucking fleet customers are focused on fuel cost savings and on increasing the fuel economy of their CNG trucks. TruckWings are a great answer to this problem, as we’ve demonstrated in real-world use with some of our major fleet customers,” said Eric Bippus, Agility’s senior vice president of global sales and marketing. “We are very pleased to enter into this distribution agreement and to continue to work with XStream Trucking to deliver clean and efficient transportation solutions for the North American trucking market.”

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