VIENNA -- (BUSINESS WIRE) --
TTControl, a joint-venture company of TTTech Computertechnik AG and Hydac International GmbH specializing in reliable and flexible electronic control systems and visualization solutions for off-highway vehicles and mobile working machines, has successfully achieved the certification of its general purpose controller HY-TTC 90 according to the two main global standards for functional safety. Now the HY-TTC 90 can be used in applications that require either certification in line with IEC 61508 or the newer ISO 13849 standard. With the latter, this controller is in full compliance with the EU machinery directive 2006/42/EC.
The HY-TTC 90 is the top product within the IP 67 rated HY-TTC 50 ECU family, and is particularly suited to control functions that require IEC 61508 Safety Integrity Level 2 or Performance Level d per ISO 13849. It is equipped with a powerful watchdog processor that constantly monitors the main CPU and can send the controller to its "safe state". This capability is part of the unit's firmware, which also includes other diagnostic functions that no longer need to be programmed by application engineers. Thus the controller offers enough benefits even if only a few functions in an application are safety critical.
All controller variants share a robust automotive housing. They work in an operating temperature range from -40 to +85 °C and are programmed either in C or CoDeSys.
"We believe there is a lot of added value for our customers in this generic functional safety certification", says Roberto Ferrari, technical director of TTControl. "Choosing an electronic control unit for a municipal or construction vehicle is a far-reaching decision. Selecting a unit with a safety certificate guarantees a high level of reliability which takes a lot of burden off development engineers and management alike. The certificate provides MTTF data which is hard to obtain for other control units."
TUeV Nord Cert GmbH, Essen certified that - independent of the application - the HY-TTC 90, if used in a category 2 electronic architecture according to ISO 13849, reaches a "mean time to dangerous failure" of 66 years, which together with the required "diagnostic coverage" gives a "Performance Level d". A single HY-TTC 90 controller ensures Safety Integrity Level 2 per ISO 61508 with a "probability of failure per hour" of only 2.5 * 10-7.
CONTACT:
TTControl GmbH
Petra Platzer
Tel.: +43 1 585 34 34-899
E-mail: pr@ttcontrol.com