BorgWarner in Auburn Hills today introduced its intelligent cam torque actuation (iCTA) system, which delivers better fuel economy and reduced emissions. The latest generation of its products blends attributes of cam torque actuation and torsional assist phaser technologies.
The system provides fast cam phasing throughout the engine operating range, reducing emissions and improving fuel efficiency while maintaining optimal vehicle performance. It allows the engine to be tuned for optimal opening and closing of the valves to maximize airflow when the engine needs it and minimize it when it doesn’t. iCTA enables this across a variety of engine types and is especially effective when applied to inline four-cylinder engine applications with varying cam torque energy.
By recirculating oil within the actuator, iCTA reduces oil demand and engine parasitic losses over competing four-cylinder solutions, resulting in increased fuel economy, lower emissions, and improved vehicle performance.
As the cam shaft spins, it oscillates due to cam torque, and the iCTA captures this cam torque and uses its energy to augment the energy from the engine oil pump. iCTA integrates all necessary features within the existing centerbolt architecture to allow interchangeability with an existing CTA or TA cam phaser.
“As global emissions regulations become more stringent, iCTA is an important advancement which enables manufacturers to tune engine calibrations for reduced emissions and improved fuel economy without sacrificing optimal performance,” says Joel Wiegert, president of Morse Systems, BorgWarner Inc. “iCTA works with any engine architecture and is an ideal solution for inline four-cylinder engines with low or varying cam torque energy. It’s a great addition to our industry-leading variable cam timing product portfolio.”
iCTA performs consistently across all engine speeds, has compact packaging, and is a cost-effective solution to best manage airflow for a variety of driving conditions, from cold-starts to highway cruising.
The technology is expected to first appear on a variety of vehicles from two major manufacturers in China and North America in 2019 and 2020.
BorgWarner offers clean and efficient technology solutions for combustion, hybrid, and electric vehicles. It has manufacturing and technical facilities in 19 countries and employs some 30,000 people worldwide.