SupportCareersContact UsNewsroomeBusiness APPLICATIONS PRODUCTS INVESTORS OUR COMPANY Compressor Applications■ Armored and Tactical Defense Vehicles■ Guided Missiles and Munitions■ OH-Series Engine Control Systems Systems Engine Control Systems Control Systems Upgrades and Retrofits Development Tools Diesel Engine Gas and Dual-Fuel Engines Vehicle Control Systems Vehicle Control Systems Related Applications Alternative Fuel Vehicles Woodward OH-Series Engine Control Systems Proven electronic control systems for gas- and propane-fueled, medium- or heavy-duty vehicles Woodward’s OH-Series engine control systems provide clean-burning engines, strong performance and outstanding fuel economy, essential to OEMs worldwide. Whether you’re running CNG (compressed natural gas), LNG (liquified natural gas) or LPG (liquid propane gas) in your medium- or heavy-duty vehicle, Woodward has a control solution for you. Our integrated system of electronic controls, sensors, valves, and actuators work together to control precisely the air flow, fuel flow, exhaust flow, and combustion processes of the engine. This helps the engine meet mandated emissions levels with the fuel economy and reliability vehicle operators demand. Operating under an OH system, an engine can meet any targeted emissions level from Euro 2 to Euro 6 (or equivalent) while maintaining diesel-like drivability and excellent fuel economy. Woodward has extensive experience and knowledge in designing complete system solutions for any application. And, our global network of local Woodward engineering centers provides superior engineering and product support. Choose the engine management system that's right for you . . . OH2 Engine Management System Engine control system for heavy-duty CNG trucks and buses meeting emission standards up to Euro 5. Learn More OH4 Engine Management System 12V stoichiometric engine control system for medium-duty CNG trucks and buses meeting Euro 5 emission standards. Next generation engine control system for CNG fueled medium- and heavy-duty trucks and buses designed to meet Euro 6 emission standards. Learn More OH6 Engine Management System Next generation engine control system for CNG fueled medium- and heavy-duty trucks and buses designed to meet Euro 6 emission standards. Learn More Why Woodward? OEMs rely on Woodward’s OH-Series systems for many reasons: Woodward has a clear focus on the alternative fuel market. Large installed fleet (65,000+ systems) Long experience in this market (since 1980’s) Woodward has a global presence. Expanding local application and field support Partnering with re-power and field service companies Woodward is a partner in export opportunities. New buses & trucks Re-powering opportunities Woodward’s system capabilities are proven to meet future emission requirements. Euro 5 standards with lean-burn engine control system US FTP 2010 and Euro 5, Euro 6 standards with stoichiometric engine control system Woodward invests in future technologies for Euro 6, US FTP 2010 and beyond. Advanced ignition systems Advanced SPI fuel metering valve technologies Suppliers Supplier FAQ Supplier Gateway Community Community Events Contact Us Terms and Conditions Glossary ©Copyright 2018 Woodward, Inc