Delphi Keeps Harley-Davidson at the Peak in Setting Standards
27 July 2000Delphi Introduces Two Industry Firsts for Popular Harley-Davidson Softail Platform
TROY, Mich. - Delphi Automotive Systems has been selected to supply the engine management system (EMS) electronics for the 2001 Softail platform for Harley-Davidson Motorcycles. The Delphi EMS system is the first "ion-sense" and hybrid engine controller based-technologies ever used on a motorcycle. The 2001 Harley-Davidson engine management system utilizes a Delphi engine control module, manifold absolute pressure (MAP) sensor and dual ignition coil. "Our systems approach integrates hardware with electronics controllers, engine management software and algorithms to deliver a highly efficient and sophisticated engine management system," said Chuck Meier, general director of North America Regional Marketing & Sales for Delphi Delco Electronics Systems. "This engine management system meets the performance, emissions and fuel economy demands required by our customer and end-users." The Delphi EMS features "ion-sense" technology to help control engine knock by measuring knock intensity in the cylinder combustion chamber. With "ion-sensing" technology, knock detection is achieved using the spark plug gap itself as the knock detector. It is more cost-effective as well as aesthetically appealing since it does not require added external hardware on the engine. The hybrid engine controller technology is another first for the motorcycle industry. The hybrid controller uses a ceramic substrate with surface mounted electronic components in a sealed package. Hybrid microelectronics offers superior packaging density and environmental robustness, to withstand higher temperatures and vibration than traditional circuit board technology. In addition, the Delphi controller is reprogrammable through a serial interface communication port allowing it to be programmed using an off-board service tool. The system employs speed-density fuel control, which uses synchronous manifold pressure sensing to monitor the engine load. This is an improved method of measuring engine load that is more tolerant of engine-to-engine variations. With the Delphi EMS, the key features and functions of the 2001 Softail platform include: * Hybrid ECM technology for compact and rugged applications. * Cylinder-independent sequential port fuel injection. * Cylinder-independent spark timing control. * Synchronous manifold pressure sensing of engine load. * Predictive load estimation for accurate transient control. * Control of idle air for turnkey starting and idle speed control. * Cylinder identification without the use of a camshaft sensor. * Barometric pressure compensation for operation at any altitude. * Knock control using "ion-sense" technology. * Engine speed-governing control. * Engine management systems diagnostics. * Communication interface to instrument cluster, security module and service tools. "Harley-Davidson customers demand reliable and durable and engine performance," said Meier. "Our new electronics technologies assure these requirements are met. We are proud to be on the Harley-Davidson team as a supplier." Multi-national Delphi Automotive Systems, with headquarters in Troy, Mich., USA, Paris, Tokyo and Sao Paulo, Brazil, is a world leader in mobile electronics and transportation components and systems technology. Delphi's three business sectors -- Dynamics & Propulsion; Safety, Thermal & Electrical Architecture; and Electronics & Mobile Communication -- provide comprehensive product solutions to complex customer needs. Delphi has approximately 216,000 employees and operates 179 wholly owned manufacturing sites, 41 joint ventures, 53 customer centers and sales offices and 31 technical centers in 39 countries.