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General Motors to include Dynamic Skip Fire technology to improve fuel economy

ABR Staff Writer Published 06 January 2015

General Motors is planning to bring Tula’s Dynamic Skip Fire (DSF) technology into its vehicles.

General Motors Ventures had invested in Tula Technology which develops digital signal processing technology and combustion control techniques back in 2012

The DSF technology integrates advanced digital signal processing with powertrain controls which will be capable of creating software-based approach to variable displacement engines.

According to tests conducted by Tula DSF has a fuel-efficiency improvement of up to 15% in a multi-cylinder engine when compared to an engine without cylinder deactivation.

The system is expected to provide fuel economy across a wide range of driving conditions.

Tula's DSF technology will continuously makes dynamic firing decisions on an individual cylinder to deliver required engine torque for all vehicle load and speed and avoid vibration.

General Motors CTO Jon Lauckner said: "This technology holds the potential to improve fuel economy on select GM vehicles without degrading power capability when it's required.

"This joint effort combines software expertise from Silicon Valley with powertrain expertise from General Motors."

Tula Technology CEO R. Scott Bailey added: "We've worked closely with GM during this exciting stage of DSF development, and they've provided essential financial support while allowing us to run our business with full autonomy.

"Our goal is the same as GM; we both innovate to make the lives of people better."