Title:
SUPERCHARGING CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2018131987
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To determine a timing for stopping driving of an electric compressor without providing a pressure sensor between the electric compressor and a turbo-compressor.SOLUTION: A supercharging control device applied to a supercharging system including a turbo-supercharger, and an electric compressor provided on an upstream side of a turbo-compressor, comprises: a flow rate acquisition part, a flow rate determination part, a time determination part, and a drive control part. In S404, the flow rate acquisition part acquires a downstream intake flow rate on a downstream side of the turbo-compressor. In S404 and S412, the flow rate determination part determines whether or not the downstream intake flow rate reaches a predetermined flow rate required for generating a target supercharging pressure under such a state that the electric compressor is actuated. In S418, the time determination part determines whether or not an elapsed time from when the downstream intake flow rate reaches a predetermined flow rate is not less than a predetermined time. In S420, the drive control part stops driving the electric compressor when the elapsed time becomes not less than the predetermined time.SELECTED DRAWING: Figure 2
Inventors:
HAYASHI FUMIYA
Application Number:
JP2017026744A
Publication Date:
August 23, 2018
Filing Date:
February 16, 2017
Export Citation:
Assignee:
DENSO CORP
International Classes:
F02B37/04; F02B37/12; F02B37/16; F02B37/18
Attorney, Agent or Firm:
Nagoya International Patent Service Corporation