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|Freescale cleans up small combustion engines with electronic control solution|
Cost-effective, two-chip platform helps small motorcycles, scooters, three-wheelers and outdoor power equipment ‘go green’
SHENZHEN, China (Freescale Technology Forum China) – Aug. 27, 2009 – Faced with worldwide emissions regulations and rising gas prices, the small engine market is migrating from mechanical carbureted systems to cleaner, more efficient electronic control and electronic fuel injection (EFI). To address the global need for these eco-friendly designs, Freescale has combined a highly integrated analog device with a 16-bit microcontroller (MCU) to provide a cost-effective platform solution ideal for small engine control.
The platform consists of the MCZ33812, an advanced analog integrated circuit (IC) optimized to control fuel and spark in EFI and electronic carburetion (e-carb) systems, and a Freescale S12 MCU. This comprehensive small engine control platform helps lower harmful emissions and reduces system complexity, bill of materials and manufacturing cost, while accelerating time to market.
“State-of-the-art electronic control helps small engines produce more horsepower and less pollution than their carbureted predecessors,” said Steve Nelson, global manager of automotive marketing at Freescale Semiconductor. “Emissions regulations are influencing small engine design, and the evolution from mechanical to electronic control is transforming the small-displacement motorcycle and scooter market. Freescale has long been a pioneer in advanced engine technology for automobiles, and our new platform solution is an important step on the path to greener small engines.”
Target applications for Freescale’s small engine control platform include small-displacement two- and four-stroke engines used in motorcycles, mopeds, scooters and three-wheeled taxis. The platform is also ideal for small engine designs in a wide range of outdoor power equipment, such as lawnmowers, garden tractors, trimmers, edgers, chainsaws, snow and leaf blowers, tillers, electrical generators and outboard motors.
Rising need for cleaner, greener small engines
Governments worldwide are implementing stringent regulations requiring motorbike and outdoor equipment manufacturers to design cleaner-burning small engines. Emerging markets for motorbikes are adopting emissions standards similar to Euro 3. The U.S. Environmental Protection Agency (EPA) also has enacted strict emissions rules for small engines. According to the Outdoor Power Equipment Institute, the EPA Phase 3 standards, when fully implemented in the U.S. by 2015, are expected to reduce harmful emissions from small gasoline engines by 95 percent, compared to 1997 levels.
The most feasible way for small engine makers to meet tougher, government-mandated emissions regulations is to deploy electronic engine controls, such as electronic ignition, e-carb and ultimately EFI. Implementing EFI systems on small engines can help reduce carbon monoxide emissions by up to 65 percent, hydrocarbons by up to 35 percent and nitrogen oxide by up to 35 percent compared to carburetor systems. EFI-equipped small engines also increase horsepower and improve gas mileage.
Broad deployment of advanced electronic controls for small engines requires highly integrated and affordable components. Freescale’s new MCZ33812 analog IC represents breakthrough technology for this market. The device combines a voltage regulator, fuel injector driver and ignition pre-driver, as well as a relay and lamp driver, watchdog timer and reset generator – all optimized for small engine control. This exceptional integration, enabled by Freescale SMARTMOS™ technology, eliminates up to a dozen discrete components and reduces the circuit board area for engine makers while also helping customers enhance the quality and reliability of their products.
Reference design for fast time to market
Powerful MCU companion
MCZ33812 small engine control circuit features
Pricing and availability
For more information about Freescale’s MCZ33812 small engine control circuit, visit www.freescale.com/smallengine. For more information about the S12 and S12X MCU families, visit www.freescale.com/16bit.
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