U.S. Military Helicopters Rely on Green Hills Software for Engine Control
SANTA BARBARA, Calif., April 11, 2024 /PRNewswire/ -- Green Hills Software announced that the INTEGRITY®-178 real-time operating system (RTOS) is deployed in the engine control units (ECUs) from Triumph Group, Inc. (TRIUMPH) for a wide variety of U.S. military helicopters, including the AH-64D Apache, CH-47D/F & MH-47D/F/G Chinook, UH-60L/M/V Black Hawk, HH-60 Pave Hawk, MH-60 Jayhawk, and SH-60 Sea Hawk. As flight-critical systems, those ECUs running INTEGRITY-178 have been developed to RTCA/DO-178B Design Assurance Level A (DAL A). TRIUMPH has also selected the INTEGRITY-178 tuMP™ multicore RTOS for its next generation of ECUs, which has applications running concurrently on all cores of a quad-core processor. Those TRIUMPH ECUs rely on the multicore robust partitioning provided by INTEGRITY-178 tuMP to the same level as for single-core processors. TRIUMPH selected the INTEGRITY-178 RTOS for the security and determinism of its DAL A partition scheduler, the quality of its certification artifacts for RTCA/DO-178B DAL A, and the high productivity of its MULTI® integrated development environment (IDE).
- Those TRIUMPH ECUs rely on the multicore robust partitioning provided by INTEGRITY-178 tuMP to the same level as for single-core processors.
- Some TRIUMPH ECU models are Full Authority Digital Engine Controls (FADECs), which have complete control of the engine without pilot backup.
- For example, the EMC-100 FADEC is a sophisticated, low-cost, dual-channel engine control in a single housing.
- The software is organized in a multi-partition architecture, with application-specific control system software running in isolated partitions on the INTEGRITY-178 RTOS.