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:
Nov. 11, 2025
Filed:
Mar. 02, 2023
Subaru Corporation, Tokyo, JP;
Yoichi Ishikawa, Tokyo, JP;
SUBARU CORPORATION, Tokyo, JP;
Abstract
A control apparatus is provided for a hybrid vehicle including an engine with a supercharger, a blow-by gas treatment device having a ventilation line and a fresh air line, and an electric motor coupled to the engine. In low-temperature environments, transient driving conditions can lead to mixing of outside air and blow-by gas, potentially causing condensation and freezing. To address this, the control apparatus includes a control unit configured to cause the electric motor to perform regenerative operation without decreasing engine output torque when boost pressure falls below a threshold or when accelerator input decreases, under conditions where the outside air temperature is at or below a predetermined level and the boost pressure is positive. This helps maintain a positive boost pressure to prevent reverse flow in the blow-by gas system, supporting effective combustion and drivability while managing energy recovery through regeneration.