The multi-pulse control algorithm of high pressure common rail diesel engine based on structure array

摘要

To meet the strict emission regulations, multipulse injection and other strategies were adopted to achieve different combustion patterns and paths of high-pressure common rail diesel engine in order to achieve ultra-low emissions. Therefore, the control system of multi-pulse fuel injection based on MCF5235 microprocessor and the multi-pulse control algorithm based on the array of structure were designed. The experimental results show that the designed multi-pulse injection control system can trigger many times' injection pulses in an interrupt, which reduces the burden on the CPU, the control system can achieve up to 10 times' multi-pulse fuel injections, and the number of multi-pulse injection, injection interval, pulse width can be adjusted independently to form a modulated multi-pulse mode.