公开(公告)号：US10012161B2

公开(公告)日：2018-07-03

申请号：US15171931

申请日：2016-06-02

Applicant: Tula Technology, Inc. ,  FCA US LLC

Inventor： Mark A. Shost ,  Ihab S. Soliman ,  James J. Daley

IPC: F02D17/00 ,  F02D41/00 ,  F02D29/02 ,  F02D41/26 ,  F02D17/02 ,  F02D13/06

CPC classification number: F02D41/0085 ,  F02D13/06 ,  F02D17/00 ,  F02D17/02 ,  F02D29/02 ,  F02D41/008 ,  F02D41/0087 ,  F02D41/26 ,  F02D2041/0012 ,  F02D2200/1004

Abstract: In one aspect, a method is described. An operational engine torque is calculated. The engine is operated in a skip fire manner to deliver the operational engine torque. A reference engine torque is calculated using a torque model. The torque model involves estimating torque at a working chamber level. The reference engine torque is compared to the calculated operational engine torque to assess the accuracy of the operational engine torque calculation. Various embodiments of the present invention involve software, devices, systems and engine controllers that are related to one or more of the above operations.

公开(公告)号：US11261807B2

公开(公告)日：2022-03-01

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: F02D13/06 ,  F02D17/02 ,  F02D41/00 ,  F01N11/00 ,  F01N9/00 ,  F02D41/12 ,  F02D41/30 ,  F01L13/00

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：US09725082B2

公开(公告)日：2017-08-08

申请号：US14743656

申请日：2015-06-18

Applicant: Tula Technology Inc. ,  FCA US LLC

Inventor： Ihab S. Soliman ,  Mark A. Shost ,  Truc Trung Le ,  Joseph B. Adams

IPC: F02P5/00 ,  B60W20/00 ,  F02D17/02 ,  B60W10/06 ,  F02D29/02 ,  F02D41/30 ,  F02N11/08 ,  F02P5/15 ,  F02N11/04

CPC classification number: B60W20/00 ,  B60W10/06 ,  F02D17/02 ,  F02D29/02 ,  F02D41/3058 ,  F02D2200/0406 ,  F02N11/04 ,  F02N11/0829 ,  F02N2011/0896 ,  F02N2200/022 ,  F02P5/1506 ,  Y02T10/46 ,  Y02T10/48 ,  Y10S903/905

Abstract: A variety of methods and arrangements for implementing a start/stop feature in a skip fire engine control system are described. In one aspect, the implementation of the start/stop feature involves automatically turning off an internal combustion engine under selected circumstances during a drive cycle. A determination is made that the engine should be restarted. During the engine startup period, the engine is operated in a skip fire manner such that a desired engine speed is reached.

公开(公告)号：US09387849B2

公开(公告)日：2016-07-12

申请号：US14743581

申请日：2015-06-18

Applicant: Tula Technology Inc.

Inventor： Ihab S. Soliman ,  Mark A. Shost

IPC: B60L9/00 ,  B60W20/00 ,  F02D17/02 ,  B60W10/06 ,  F02D29/02 ,  F02D41/30 ,  F02N11/08 ,  F02P5/15 ,  F02N11/04

CPC classification number: B60W20/00 ,  B60W10/06 ,  F02D17/02 ,  F02D29/02 ,  F02D41/3058 ,  F02D2200/0406 ,  F02N11/04 ,  F02N11/0829 ,  F02N2011/0896 ,  F02N2200/022 ,  F02P5/1506 ,  Y02T10/46 ,  Y02T10/48 ,  Y10S903/905

Abstract: A variety of methods and arrangements for implementing a start/stop feature in a skip fire engine control system are described. In one aspect, the implementation of the start/stop feature involves automatically turning off an internal combustion engine under selected circumstances during a drive cycle. A determination is made that the engine should be restarted. During the engine startup period, the engine is operated in a skip fire manner such that a desired engine speed is reached.

Abstract translation: 描述了用于在跳过消防车控制系统中实现起动/停止特征的各种方法和装置。 在一个方面，启动/停止特征的实现涉及在驱动循环期间在选择的情况下自动关闭内燃机。 确定发动机应重新启动。 在发动机启动期间，发动机以跳火方式操作，使得达到期望的发动机转速。