Design of SCR control software based on dual-core processor

This paper introduces the control software of SCR system based on the dual-core processor S12XEP100. By the reasonable coordination between the host processor and the coprocessor XGATE, the SCR control system satisfies the increasing demands for real-time. Control performance tests show that the control software of SCR system meets the basic control requirements, also improves the real-time performance of programs effectively, such as urea injection frequency, urea injection quantity and the stability of common rail pipe pressure.