Browse Publications Technical Papers 2001-01-1348
2001-03-05

Design and Development of a Battery-Voltage-Driven Fuel Injector for Direct-Injection Gasoline Engines 2001-01-1348

The conventional fuel injector for direct-injection gasoline engines is driven by voltage step-up circuitry and current control circuitry. The voltage step-up circuitry boosts the battery voltage to near 100 volts. This conventional system is fairly large and a more compact system is preferable. We have developed a mass producible battery-voltage-driven fuel injector for direct-injection gasoline engines. The injector has a dual-coil structure that enables the injector to operate at the battery voltage, thus eliminating the need for either voltage step-up circuitry or current control circuitry. Deviation in battery voltage and changes in harness resistance are fully compensated through opening-coil energization-time control. In addition, with this control method, the injector can be used with a wide range of fuel pressures. In this paper, the design concept and the dynamic characteristics of the battery-voltage-driven fuel injector with a dual-coil structure and the opening-coil energized time control method is discussed in detail.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
JOURNAL ARTICLE

Direct Coil Cooling of a High Performance Switched Reluctance Machine (SRM) for EV/HEV Applications

2015-01-1209

View Details

TECHNICAL PAPER

Real-Time On-Board Measurement of Mass Emission of NOx, Fuel Consumption, Road Load, and Engine Output for Diesel Vehicles

2000-01-1141

View Details

JOURNAL ARTICLE

EPA Smartway Verification of Trailer Undercarriage Advanced Aerodynamic Drag Reduction Technology

2012-01-2043

View Details

X