【摘要】 针对柴油机选择性催化还原(SCR)系统的控制需求,设计了一种基于CAN总线的直流无刷电机控制系统,以飞思卡尔MC9S12DP512单片机为控制芯片。重点给出了系统的硬件及软件设计,试验结果表明CAN模块能够正常通信,系统能够准确的测出无刷电机转速。更多还原

【Abstract】 Aiming at the control needs of automobile SCR system,a brushless DC motor(BLDCM) control system based on CAN fieldbus was designed.It utilized the chip MC9S12DP512 as the main chip.The hardware and software design of the main controller module were described in detail.The experimental results showed that the CAN module’s communication was valid,the system could accurately measure the BLDCM’s speed.更多还原