Tula Technology integrates advanced signal processing with sophisticated powertrain controls to create the ultimate variable displacement engine, delivering optimal fuel efficiency at the lowest cost.
Dynamic Skip Fire (DSF) is the ultimate extension of cylinder deactivation technology in which any of the cylinders for automobile engines are fired or skipped (deactivated) on a continuously variable basis. The engine control system commands the appropriate number and sequence of fired cylinders to deliver the instantaneous torque demanded from the engine. This enables fully optimized combustion and reduced engine pumping losses, thereby increasing fuel efficiency.
Read our technical paper on Design and Benefits of DSF presented at the SAE 2013 World Conference & Exhibition
DSF can be readily applied to automotive engines through the extension of cylinder deactivation hardware that has been proven for years in mass production.
In conjunction with applying our breakthrough technology to customer engine development programs, we offer a full range of engineering and design consulting services focused on deployment of the technology to production. Tula licenses its revolutionary control algorithms to customers via a co-processor solution.
Tula Presentation on NVH at the SAE 2014 World Congress is available here.
Operating the engine in a dynamic skip fire manner alters the torque excitations on the vehicle powertrain, which could lead to unacceptable noise, vibration and harshness (NVH) characteristics. Tula's novel firing decision and control algorithms manage noise and vibration algorithmically to maintain a high quality driving experience.