Powertrain Systems

Engine Management Systems

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Delphi Multec^® Electronic Fuel Injection

The Delphi Multec<sup>®</sup> Electronic Fuel Injection for small engine commercial products includes: (from top right, clockwise) evaporative emissions canister, mini-switching oxygen sensor, ignition coil, manifold absolute pressure sensor, engine temperature sensor, intake air temperature sensor, fuel injector, engine control module, throttle body, fuel module and T-11 Fuel Pump (center).

Delphi Multec^® Electronic Fuel Injection (EFI) provides a complete engine management system (EMS) for small gasoline- and flexible fuel-powered engines. It is designed to help manufacturers meet exhaust and evaporative emissions requirements for small engines while also achieving targets for engine performance and fuel consumption. Delphi's Multec EFI provides manufacturers with a single, easy-to-manage, cost-competitive package of components that can be tailored to individual program requirements and price points. Delphi's Multec EFI can include:

Engine control unit (ECU) with software and algorithms
Electronic fuel injection
Throttle control (including electronic governor control)
Air control
Ignition coil
Sensors and actuators
Fuel pump
Evaporative emissions canister

Benefits

Components are optimized within a complete, cost-effective package to meet the manufacturer's performance objectives and price points
Delphi's Multec EFI helps provide reduced fuel consumption—up to 10-15% depending on the application
It assists in reducing exhaust emissions to help meet regulatory standards and reduces carbon monoxide emissions for better product safety versus conventionally carbureted systems
Compared to carbureted systems, Delphi's Multec EFI provides improved starting and overall performance over a wide range of environmental conditions (e.g. temperature and altitude), and better reliability
Electronic governor control provides improved speed control and reduced governor droop and hunt versus a mechanical governor
Delphi provides a complete software package and calibration tools
Delphi's single point of contact for the EMS makes it easy for the manufacturer to manage and implement the program
Delphi's experienced and knowledgeable EMS engineering support teams—with their systems development, calibration, and validation expertise—can provide fast response and enable the manufacturer to achieve fast time-to-market
Delphi's Multec EFI technology offers product image development and marketing opportunities for the manufacturer

Delphi Multec^®Electronic Fuel Injection Portfolio Summary

	Features and Benefits
Engine Control Unit (ECU)	16 bit Small package size Flexible mounting options Manifold absolute pressure (MAP) or throttle position sensor (TPS) load Electronic spark timing Flexible fuel algorithms Communication link for diagnostics and operator information display Other features: immobilizer, rollover switches, altitude compensation and more
Electronic Fuel Injector	With anti-plugging features Ethanol-blend fuel compatibility (e.g. E85, E100) Hot fuel handling
Mechanical Throttle Body	Low cost option Idle speed control option Sealed shaft option Integrated sensors Throttle bore portfolio to match engine sizes
Electronic Throttle Controls	Enhanced responsiveness to load change Fewer components Integrated sensors Throttle bore portfolio to match engine sizes
Fuel Module	Compact top- and bottom-mount in-tank design In-line modules Designed with low current consumption
Electronic Ignition	More reliable combustion versus magnetos Enables electronic spark timing Electronic protection and diagnosis for the coil
Sensors and Actuators Pressure Engine and Air Temperature Engine Crank Position	Compact designs Multiple options available for packaging flexibility
Exhaust Oxygen Sensor	Isolated ground for added robustness Enables closed-loop control for better emissions control Allows gasoline-ethanol blended flexible fuel operation Fast light-off
Evaporative Emissions Canister	Compact design Flexible mounting options Reduces evaporative emissions

Typical Applications

A Delphi Multec Electronic Fuel Injection engine management system is available for one- or two-cylinder gasoline and flexible fuel engines ranging from 10 hp to 30 hp. Delphi Multec EFI enables the engines to operate on gasoline-ethanol blended fuels. Typical product applications include:

Motorcycles and scooters
Out-board marine engines
Power generators
Commercial lawn tractors and mowers
All-terrain vehicles
Outdoor power equipment
Snowmobiles
Personal watercraft

Performance Advantages

Delphi's Multec Electronic Fuel Injection offers an easy and convenient way for a manufacturer of small engine products to implement a complete engine management system that can help meet exhaust and evaporative emissions standards, while enhancing engine performance and reducing fuel consumption. Delphi's unique understanding of the complete engine management system and its portfolio of major component development capabilities contribute to superior component design and a cost-competitive system. Delphi's engine management system products are recognized for high quality and superior performance.

The Delphi Advantage

Delphi has a long history of supplying gasoline engine management systems and components that have for many years helped global automotive manufacturers overcome market and regulatory challenges. Delphi's extensive experience in fuel injection systems development provides manufacturers of small engine products with a unique systems-level knowledge and analysis resource.

Delphi Multec^® Electronic Fuel Injection (483k)

Powertrain Systems

Engine Management Systems

Delphi Multec® Electronic Fuel Injection

Delphi Multec^® Electronic Fuel Injection