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:
Dec. 24, 2019
Filed:
Mar. 09, 2017
Mazda Motor Corporation, Hiroshima, JP;
Toshiaki Takahashi, Hiroshima, JP;
Masanari Sueoka, Hiroshima, JP;
Masatoshi Hidaka, Higashihiroshima, JP;
MAZDA MOTOR CORPORATION, Hiroshima, JP;
Abstract
A PCM () selects one of a CI mode or an SI mode based on the operating conditions of the engine (). In the CI mode, the engine () is operated by compression ignition combustion. In the SI mode, the engine () is operated by spark ignition combustion. if, while the engine () is being operated in the CI mode, a determination is made that an estimated value (Tc) of the catalyst temperature is lower than or equal to a warming start temperature (Ts), the PCM () further performs first warming control to assign four cylinders () as CI and SI cylinders, which perform the compression ignition combustion and the spark ignition combustion, respectively, such that the four cylinders () alternately perform the compression ignition combustion and the spark ignition combustion in accordance with the order of combustion of the cylinders.