The new electronic brain gives vocational trucks more PTO functionality. 
 -  Photo courtesy Kenworth

The new electronic brain gives vocational trucks more PTO functionality.

Photo courtesy Kenworth

Kenworth introduced new multiplexed vehicle electronics for its flagship T680 over-the-road and T880 vocational models, and the recently introduced Kenworth W990, equipped with Paccar MX-13 or MX-11 engine.

The new electronic system updates enable Kenworth to easily integrate new options into its trucks, while simplifying wiring, providing control system feedback to drivers (switch visual cues, for example), and leveraging DAVIE4 diagnostic tools to speed service and repairs. In addition, Kenworth said it has provided an industry-standard interface for connecting telematics and electronic body controls to the truck electronic system. 

“With trucks becoming smarter through highly integrated computer systems, we have transitioned from traditional point-to-point wiring to electronic networking,” said Patrick Dean, Kenworth chief engineer. “This has allowed for the simplification of wiring harnesses, reduction of the number of physical wires, and improved flexibility.”

A part of this new update is a new, advanced vehicle electronic control unit. With significantly more capacity and speed, Kenworth said it sets the stage for adding systems in the future such as advanced driver assistance technologies and advanced powertrains.

For Kenworth vocational customers using Paccar MX engines, they will notice a difference immediately, with additional Paccar MX engine PTO functionality, including further options for locating body controls, increased engine speed set-point flexibility, smart and programmable interlocks with other vehicle operation parameters, and enhanced driver feedback on the instrument panel’s 5-inch digital display and on the switches themselves.

“For example, the PTO engagement switch will only illuminate if all the necessary interlocks are satisfied,” Dean explained. “If those interlocks are not satisfied, the central dash display will also tell the driver why.”

Originally posted on Trucking Info

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