Delphi to reveal next-generation fuel system technologies for medium and heavy duty vehicles

September 22, 2016

• Ultra-fast injector allows up to nine injection events per cycle
• Closed-loop control system for whole-life ‘as new’ performance
• Engine and transmission controllers maximise system performance

At the IAA Commercial Vehicles show Delphi will reveal a range of new powertrain technologies that will help to meet demanding emissions and fuel economy targets anticipated for the next decade. A new, modular common rail systems family for medium- and heavy-duty vehicles will build on Delphi’s proven Euro VI technology. This technology provides closed-loop control of very small injection events, which substantially reduces emissions, improves fuel economy and helps operators maintain original performance for the lifetime of the engine.

At the heart of the new common rail systems family is a ground-breaking injector that provides the control unit with real-time information on the operation of the injector. The system does not need additional wires or interfaces, or packaging space. Data from the injector allows the implementation of closed-loop control that continuously monitors and optimises injection events to compensate for changing conditions, including wear as the vehicle ages.

“We believe this is not only one of the most effective solutions, but that through clever design it is also the simplest,” said Kerem Erman, vice president, Powertrain and general manager, Fuel Injection Systems for Delphi. “Closed-loop control is essential for the next generation of fuel systems, but it has to be achieved affordably and without adding complexity. Delphi’s new closed-loop injector for medium- and heavy-duty applications achieves this with a simple, elegant design that requires no additional wiring.”

The ability to maintain very precise operation through the engine’s life, combined with a new, smaller, lighter, faster injector valve, allows combustion engineers to specify up to nine injection events per cycle. Reducing emissions and improving fuel economy by up to 1.5 percent are not the only benefits. The ability to control the early stages of combustion also will provide a significant improvement in engine noise and refinement.

Delphi has also developed a new family of engine and powertrain controllers that are substantially more powerful than the current generation. New advanced Delphi application-specific integrated circuits (ASIC) allow additional features to be included such as increased cyber security, integrated SCR control and reduced calibration times.

“Delphi’s new systems provide substantial improvement in performance with no requirement to change any other aspect of the engine,” concluded Kerem Erman. “And because they are designed for a modular system architecture, they offer considerable flexibility to complement each customers’ powertrain strategy.”

Also on the Delphi stand A04, Hall 17, will be a range of other powertrain technologies, alongside engineering specialists who will be happy to discuss possible applications.