Intense Collaboration Around Non-conductive coating
“I can only agree that such a project needs an active and intense collaboration,” says Geraldine. “We gained a lot of trust in each other. We combine deep knowledge of our respective fields of expertise so we need to have a good working atmosphere. From both sides we need to be honest and tell each other where we can improve. it is a complex project, because to come up with a good injector we need application specialists, material scientists, designers and coating specialists to all work together towards the goal. We are glad to have found the right team of Delphi and Hauzer specialists to make this work.”
In order to understand why the non-conductive coating is needed, Delphi explains about their closed loop system. As stated in an interview with Engine Technology International in June 2016, Delphi’s closed loop control system using ‘switch’ technology is thought to be a world-first. It offers real-time control data that is more precise, more robust and provided by more cost-effective technology than any other existing closed loop solution. The Delphi system detects when the nozzle needle touches the seat or the lift stop, allowing the system to constantly recalibrate all fuelling events over the lifetime of the vehicle as well as compensating for any part-to-part variation. Rather than using pressure sensing systems which require complex data processing with several additional wires on each injector but which are not able to eff ectively detect multiple injections, the Delphi’s technology is purely electrical using only one additional wire, sensing the needle contact on the nozzle body for each individual injection event.