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Design of NG Engine ECU Based on MPC563xM

Wang Junxi

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Abstract

The electronic control unit(ECU)of natural gas engine was designed by using new generation Freescale MPC563xM microcontroller.Then the ECU structure was analyzed and the function module was designed.In the nozzle drive circuit,the high-side switch,low-side PWM feedback control and low-side electric current detection method were used,which owned the characteristics of low cost and high reliability.The experiments show that the designed ECU can quickly and accurately control the injection of natural gas,which realizes the rapid start of engine.

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What this paper is about

The electronic control unit(ECU)of natural gas engine was designed by using new generation Freescale MPC563xM microcontroller.Then the ECU structure was analyzed and the function module was designed.In the nozzle drive circuit,the high-side switch,low-side PWM feedback control and low-side electric current detection method were used,which owned the characteristics of low cost and high reliability.The experiments show that the designed ECU can quickly and accurately control the injection of natural gas,which realizes the rapid start of engine.

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Available abstract

The electronic control unit(ECU)of natural gas engine was designed by using new generation Freescale MPC563xM microcontroller.Then the ECU structure was analyzed and the function module was designed.In the nozzle drive circuit,the high-side switch,low-side PWM feedback control and low-side electric current detection method were used,which owned the characteristics of low cost and high reliability.The experiments show that the designed ECU can quickly and accurately control the injection of natural gas,which realizes the rapid start of engine.

Key concepts: Electronic control unit, Automotive engineering, Engine control unit, Microcontroller, Reliability (semiconductor), Nozzle, Control unit, Engineering

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