Scholarlink

The exhaust gas recirculation (EGR) system is a key component that redirects exhaust gases into the intake manifold to mix with fresh air, reducing combustion temperature and lowering nitrogen oxide (NOx) emissions. This paper reviews EGR systems and valves, focusing on electronically controlled actuators responsive to engine speed, temperature, and exhaust flow. An experimental test bench was developed to evaluate performance and signals from the pintle position sensor (PPS) to the engine control unit (ECU). Results demonstrate fast response times (<1 s), precise control, and reduced soot deposits in electronic EGR, with near-linear PPS voltage-pintle correlations. Novelty lies in the hardware-based analysis of PPS behaviour under PWM control, enabling closed-loop optimisation. This aligns with cognitive mobility (CogMob) by integrating EGR into adaptive AI-driven vehicle systems for real-time emission reduction in intelligent transportation.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Experimental Investigation Regarding the Use of EGR System in Internal Combustion Engine

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Tutunea Dragos,
  • Beles Horia,
  • Scurt Florin Bogdan,
  • Tolea Bogdan Adrian

摘要

The exhaust gas recirculation (EGR) system is a key component that redirects exhaust gases into the intake manifold to mix with fresh air, reducing combustion temperature and lowering nitrogen oxide (NOx) emissions. This paper reviews EGR systems and valves, focusing on electronically controlled actuators responsive to engine speed, temperature, and exhaust flow. An experimental test bench was developed to evaluate performance and signals from the pintle position sensor (PPS) to the engine control unit (ECU). Results demonstrate fast response times (<1 s), precise control, and reduced soot deposits in electronic EGR, with near-linear PPS voltage-pintle correlations. Novelty lies in the hardware-based analysis of PPS behaviour under PWM control, enabling closed-loop optimisation. This aligns with cognitive mobility (CogMob) by integrating EGR into adaptive AI-driven vehicle systems for real-time emission reduction in intelligent transportation.