Title:
過給機付エンジンの制御装置
Document Type and Number:
Japanese Patent JP6962310
Kind Code:
B2
Abstract:
To provide a control device for an engine 1 with a supercharger as a mechanical supercharger 44 for suppressing a temporary decline in the emission performance when the operating condition of an engine body 10 transits from a low load and low rotation operation region to a low load and high rotation operation region in association with increase in engine rotation speed.SOLUTION: Control means (an ECU 100) stops a mechanical supercharger 44 and makes an air-fuel ratio in a combustion chamber 17 or a weight ratio G/F of gas to fuel in the combustion chamber 17 lean to be equal to or greater than 25 when the operating condition of the engine body 10 is in the low load and low rotation operation region, drives the mechanical supercharger 44 when the operating condition of the engine body 10 is in the low load and high rotation operation region, and sets A/F or G/F in the combustion chamber 17 to be 14.5-15.0 when the operating condition of the engine body 10 transits from the low load and low rotation region to the low load and high rotation operation region as an engine speed is higher.SELECTED DRAWING: Figure 1
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Inventors:
Atsushi Inoue
Keiji Araki
Keiji Araki
Application Number:
JP2018241985A
Publication Date:
November 05, 2021
Filing Date:
December 26, 2018
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02D23/00; F02B39/04; F02D43/00
Domestic Patent References:
| JP10274070A | ||||
| JP2000045829A | ||||
| JP10274064A | ||||
| JP63208634A |
Attorney, Agent or Firm:
Maeda patent office
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