The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 27, 2020
Filed:
Jun. 28, 2017
Mitsubishi Electric Corporation, Tokyo, JP;
Michihisa Yokono, Hyogo, JP;
Hideki Hagari, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
To provide a controller and a control method for a supercharger-equipped internal combustion engine capable of assisting the insufficient part of supercharging pressure supercharged by the turbocharger, with a good responsiveness by the electric compressor, using simple calculation, even though using a plurality of superchargers. The controller for a supercharger-equipped internal combustion engine calculates, as a target intermediate supercharging pressure, a value subtracting, from the target supercharging pressure, a pressure difference subtracting the actual intermediate supercharging pressure from the actual supercharging pressure; calculates a pressure ratio of the target intermediate supercharging pressure and the actual atmospheric pressure; calculates a target rotational speed of the electric compressor based on the pressure ratio and the actual intake air flow rate; and controls the electric motor.