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1. (WO2017199363) MULTI-STAGE TURBO SUPERCHARGING SYSTEM

Pub. No.:    WO/2017/199363    International Application No.:    PCT/JP2016/064720
Publication Date: Fri Nov 24 00:59:59 CET 2017 International Filing Date: Thu May 19 01:59:59 CEST 2016
IPC: F02B 37/16
F02B 37/00
F02M 26/08
Applicants: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
三菱重工エンジン&ターボチャージャ株式会社
Inventors: YASHIRO, Yusuke
彌城 祐亮
JIWARIYAVEJ, Vissuta
ジワリヤウェート ウィツター
HAYASHI, Yoshihiro
林 良洋
AN, Byeongil
安 秉一
Title: MULTI-STAGE TURBO SUPERCHARGING SYSTEM
Abstract:
This multi-stage turbo supercharging system is provided with: a bypass passage which bypasses any one turbo supercharger from among a plurality of turbo superchargers in an intake passage or an exhaust passage of an engine; a bypass valve provided in the bypass passage; an operation mode selecting unit; a bypass valve opening map selecting unit configured to select, according to an operation mode selected by the operation mode selecting unit, at least one bypass valve opening map from a plurality of bypass valve opening maps which represent respective relationships between a plurality of control parameters of the engine and an opening of the bypass valve; a bypass valve opening determining unit configured to determine an opening command value of the bypass valve on the basis of the bypass valve opening map and the control parameter information representing the plurality of control parameters; and a bypass valve opening control unit configured to control the opening of the bypass valve on the basis of the opening command value of the bypass valve.