Two-Degree-of-Freedom H Control of Diesel Engine Air Path System with Nonlinear Feedforward Controller

Mitsuo Hirata, Tomofumi Hayashi, Jun Koizumi, Motoki Takahashi, Yudai Yamasaki, Shigehiko Kaneko

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


In this research, we developed a two-degree-of-freedom control system for a Diesel engine air path system. First, a physical air path model of the Diesel engine was developed. Then, a feedforward controller was designed based on the inverse of the developed physical model, thus reducing the computational effort in real-time calculation. The feedback controller was designed by using an H control theory by regarding the plant nonlinearities and the response delay of the actuators as uncertainties to the nominal model. The feedforward and feedback controllers were implemented as a two-degree-of-freedom control scheme. Further, an anti-windup scheme was introduced in the feedback controller to reduce the overshoot in the intake manifold pressure response. The effectiveness of the proposed method was evaluated by conducting not only simulations using the nonlinear physical model, but also experiments using a real Diesel engine.

Original languageEnglish
Pages (from-to)535-541
Number of pages7
Issue number31
Publication statusPublished - 2018 Jan 1
Externally publishedYes


  • air path system
  • anti-windup control
  • Diesel engine
  • H control
  • two-degree-of-freedom control

ASJC Scopus subject areas

  • Control and Systems Engineering

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