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    • Research on Cycle-by-Cycle Diesel Engine Control of Low Temperature Cold Start Based on Combustion State Feedback
    DOI：10.13949/j.cnki.nrjgc.2024.02.004
    Key Words:low temperature cold start  cycle-by-cycle control  injection timing  diesel engine
    Author NameAffiliationE-mail
    QIN Biao Key Laboratory of Power Machinery and Engineering， Ministry of Education， Shanghai Jiaotong University， Shanghai 200240， China habaoninini@sjtu.edu.cn 
    WANG Peng Key Laboratory of Power Machinery and Engineering， Ministry of Education， Shanghai Jiaotong University， Shanghai 200240， China wangpeng19941224@sjtu.edu.cn 
    MA Shibao Shanghai Marine Equipment Research Institute， Shanghai 200031， China wildmsb@163.com 
    WANG Guoying China North Engine Research Institute， Tianjin 300300， China wangguoying317@163.com 
    SHI Lei Key Laboratory of Power Machinery and Engineering， Ministry of Education， Shanghai Jiaotong University， Shanghai 200240， China shi_lei@sjtu.edu.cn 
    DENG Kangyao* Key Laboratory of Power Machinery and Engineering， Ministry of Education， Shanghai Jiaotong University， Shanghai 200240， China kydeng@sjtu.edu.cn 
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    Abstract:In order to improve the poor combustion cycle of low-temperature cold starting conditions， a combustion status feedback system was developed by CompactRIO controller.The cylinder pressure acquisition and real-time calculation and feedback of combustion state parameters were achieved.The influences of injection timing on CA50 （the crank angle corresponding to the cumulative heat release in the cylinder reaches 50%） at different temperatures and speeds were researched by experiments. The cycle-by-cycle control method of injection timing based on the feedback of combustion state was proposed， achieving the matching of combustion parameters and control parameters. After the control method was adopted， the CA50 was more concentrated in the efficient combustion zone， the maximum combustion pressure was higher and the bad combustion cycle was improved. And the starting time was reduced by 36% on average， which effectively improved the performance of low temperature cold starting of the diesel engine.
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