TT Electronics Helps Audi Turbo-Diesel and Gasoline Engines Keep Cool
January 30, 2015 by John Day
TT Electronics is helping Volkswagen-Audi Group (VAG) boost the fuel economy and reduce the emissions of its latest-generation Audi A3, A4, A6 and similar-sized models.
Engineers at TT Electronics’ Salzburg technical center created an electrically driven 50-Watt water-pump controller (EWPU) that has been employed in a range of applications including the turbo-intercooler circuit of the advanced EA288 2.0-litre turbo diesel engine.
TT Electronics has developed electronic controls for on-demand driven items such as turbo-intercooler pumps and main water pumps up to 600W at 12V and 1,000W for the new 48V on-board supply system. These help increase fuel efficiency by reducing load on the engine crank, and reduce emissions by assisting faster warm-up.
To create the new EWPU for the EA288 turbo-intercooler, TT Electronics worked with Volkswagen-Audi Group and the water pump supplier, Saleri. The integrated control unit is optimized for mass-market deployment, and meets high performance and reliability targets using conventional assembly technologies with a specially designed frameless EMC (electromagnetic compatibility) filtering circuit. Sophisticated motor control and diagnostics ensure smooth running and maximize reliability, while the option to connect to the vehicle’s LIN infrastructure provides scope for richer communications.