Fuel injection electronics for greener motorcycles

Friday, 30 March, 2018 | Supplied by: STMicroelectronics Pty Ltd

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Chinese motorcycle manufacturers produce about 15 million motorcycles per year, with about 60% of that production used in China. Now the Chinese Government is moving to promote better emission performance and reduction of fuel consumption, implementing stage IV motorcycle legislation from 1 July 2018. Achieving the goals of the legislation, which requires all motorcycles be compliant from 1 July 2019, is only possible using electronic fuel injection (EFI).

The China IV motorcycle legislation builds on Euro IV, currently the world’s most stringent emission standard, by imposing even more stringent requirements on motorcycles and scooters. For example, China IV reduces THC (total hydrocarbons) emission from motorcycles by nearly 50%, CO (carbon monoxide) by 43% and NOx (nitrogen oxide) by 40–53%, compared with the current China III emission standard.

As a global leader with more than 30 years of experience in semiconductors for automotive markets, STMicroelectronics’ portfolio includes what is claimed to be one of the world’s smallest electronic fuel injection (EFI) control systems. ST offers a fully integrated solution that includes a BCD driver, an automotive microcontroller and an IGBT. Together, the components of this solution exceed the China IV motorcycle requirements.

For a larger image, click here.

Small-engine turnkey solution

L9177A power management IC

The L9177A integrates a 5 V main voltage regulator, a 5 V 40 mA tracking regulator for sensor supply and a 2.5 mA 5 V standby regulator. All this comes in a 10 x 10 mm TQFP that can provide the full set of power supplies and signal preprocessing peripherals needed to control the 2-cylinder internal combustion engines common to small motorcycles. Moreover, as an automotive-quality peripheral for low-end engine control, the product lowers the complexity of the entire system and meets the critical application requirements of a small cycle or scooter.

ST’s small-engine EFI demo ECU.

SPC560P line MCUs

SPC560P 32-bit MCUs for automotive chassis and safety applications are available with as much as 1 MB Flash, 80 kB RAM and plenty of peripherals. These peripherals include a 10-bit A/D, LIN and CAN buses, and an eTimer. Together the microcontrollers can cover a wide range of scooter-engine EMS, motor control and safety-oriented applications.

For a larger image, click here.

ST products for electronic fuel injection

Late last year, ST organised Smart Engine EFI Technology Days in both Taizhou and Chongqing. These cities are the two key centres of motorcycle production in China. The events attracted more than 300 professionals from 90 companies. More importantly, they provided a valuable opportunity for them to learn about ST’s smart, clean and green solutions.

Now, with the China IV motorcycle legislation looming, manufacturers in China see the need to upgrade their already formidable manufacturing capabilities. They know they must further transform themselves into innovative, high-quality, high-technology global competitors.

Top image credit: ©stock.adobe.com/au/ghazii

Originally published here.

Online: www.st.com
Phone: 02 9158 7200
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