THE ENERGY ENGINEERING COMPANY A major ship and engine builder turned a four-stroke medium speed diesel auxiliary engine into a dual fuel (DF) engine to allow vessels to meet IMO Tier III NOx limits in Emission Control Areas and to comply with cold ironing rules. INDUSTRY Maritime Automation REGION Asia Pacific PRODUCT Engine Control System THE CHALLENGE In the process of developing a new 35 cm bore, 9 MW rated DF engine to drive marine generator sets, the engine builder needed an engine control system (ECS) which fulfills the requirements for multi engine power generation: • Control of pilot fuel injection for the DF engine's gas fuel operating mode • Control of gas admission via electronically-controlled valves at the inlet ports • Control of unit pump injection system for the DF engine's 100 % liquid fuel mode • Control of turbocharger wastegates to adapt charge-air delivery to gas and liquid fuel operation • Full integration of the control system into the automated vessel control system • Mounting of the ECS onto the engine with exacting requirements for temperature and vibration resistance

E2CON-M ENGINE CONTROL SYSTEM The customer's wish of accessing the benefits of scalability, flexibility and modularity in one product that already has Classification Society type approvals was fulfilled using our openECS, which allows him to further develop control and automation functions with his own resources. E2CON-M consists of three units. The control panel with an engine control and alarms module and an engine safety system, the E2PRECON-M component and the auxiliary panel. The control architecture is based on the Bachmann M1 PLC system. All modules and devices operate according to the...

E2CON-M ENGINE CONTROL SYSTEM A month before the first test run the E2CON-M was functionally completed and in operation on a hardware-in-the-loop (HiL) simulator. The first trainings and the customer acceptance test could be carried out. The prototype system allowed commissioning on the testbed within 7 days. No major software changes were required during subsequent engine testing and performance optimization. Major factors in the smooth implementation of the ECS on the 9 MW auxiliary engine were: • All hardware components already have marine type approvals by major MCS • Marine requirements...