公开(公告)号：US20200072152A1

公开(公告)日：2020-03-05

申请号：US16552052

申请日：2019-08-27

Applicant: Tula Technology, Inc.

Inventor： Xi LUO ,  Jerry F. FUSCHETTO ,  Xin YUAN ,  Matthew A. YOUNKINS

IPC: F02D41/30 ,  F02D41/40

Abstract: A vehicle, engine controller and method for coordinating direct split injection of two or more pulses of fuel during a working cycle of a reactivated cylinder which was deactivated in a previous working cycle is described. By using split injection for the reactivated cylinder, the particulate matter and particulate number (“PM/PN”) generated by the reactivated cylinder is reduced.

公开(公告)号：US20210404412A1

公开(公告)日：2021-12-30

申请号：US17218657

申请日：2021-03-31

Applicant: Tula Technology, Inc. ,  Cummins Inc.

Inventor： Andrew W. PHILLIPS ,  Jerry F. FUSCHETTO

IPC: F02D41/40 ,  F02D13/02 ,  F02D41/00

Abstract: A skip fire engine controller is disclosed that commands an early direct-injection of fuel during a skipped working cycle in which a cylinder is not exhausted. With early direct injection, the fuel has more time to vaporize and mix with air for combustion in an immediately following working cycle in which the cylinder is fired. By increasing the degree of vaporization and mixing, the combustion is both cleaner and more efficient.

公开(公告)号：US20210199061A1

公开(公告)日：2021-07-01

申请号：US17183856

申请日：2021-02-24

Applicant: Tula Technology, Inc.

Inventor： Jerry F. FUSCHETTO ,  Matthew A. YOUNKINS ,  Ihab S. SOLIMAN ,  Mark A. WILCUTTS ,  Steven E. CARLSON ,  Louis J. SERRANO

IPC: F02D41/00 ,  F01N11/00 ,  F02D13/06 ,  F01N9/00 ,  F02D41/12

Abstract: Various methods and arrangements for improving fuel economy and noise, vibration, and harshness (NVH) in a skip fire controlled engine are described. An engine controller dynamically selects a gas spring type for a skipped firing opportunity. Determination of the skip/fire pattern and gas spring type may be made on a firing opportunity by firing opportunity basis.

公开(公告)号：US20180266347A1

公开(公告)日：2018-09-20

申请号：US15982406

申请日：2018-05-17

Applicant: Tula Technology, Inc.

Inventor： Jerry F. FUSCHETTO ,  Matthew A. YOUNKINS ,  Ihab S. SOLIMAN ,  Mark WILCUTTS

IPC: F02D41/00 ,  F02D13/06 ,  F02D13/02

CPC classification number: F02D41/0087 ,  F02D13/0207 ,  F02D13/06 ,  F02D41/0085 ,  F02D41/123 ,  F02D41/1406 ,  F02D2041/0012 ,  F02D2041/1412 ,  F02D2041/1433 ,  F02D2200/1004 ,  F02D2250/18 ,  Y02T10/18

Abstract: Various methods and arrangements for improving fuel economy and noise, vibration, and harshness (NVH) in a skip fire controlled engine are described. An engine controller dynamically selects a gas spring type for a skipped firing opportunity. Determination of the skip/fire pattern and gas spring type may be made on a firing opportunity by firing opportunity basis.