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. 04, 2016
Filed:
Sep. 05, 2014
Kubota Corporation, Osaka-shi, Osaka, JP;
Kentarou Kita, Sakai, JP;
Tamotsu Kuno, Sakai, JP;
Katsushi Inoue, Sakai, JP;
Yuuji Takemura, Sakai, JP;
Yuuki Ishii, Sakai, JP;
Yusuke Komemushi, Sakai, JP;
Tomoya Hasegawa, Sakai, JP;
KUBOTA Corporation, Osaka-shi, Osaka, JP;
Abstract
The present invention provides a diesel engine capable of preventing a PM accumulation amount from increasing excessively. If DOC inlet exhaust gas temperature ('IEGT') does not reach a predetermined value T0, a control unit carries out air intake amount feedback control ('AIAFC'), and a target value of intake throttling is set to a predetermined air intake amount. If the DPF regenerating processing is not started even if elapsed time reaches a predetermined value t after AIAFC is started in a state where the DOC IEGT does not reach the predetermined value T0, the control unit changes AIAFC to exhaust gas temperature feedback control (“EGTFC”). In EGTFC, the control unit changes a target value of intake throttling to a predetermined DOC IEGT T0. If application of a load exceeding a predetermined amount is detected before the DOC IEGT reaches the predetermined value T0, the control unit returns EGTFC to AIAFC.