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.

公开(公告)号：US20150100221A1

公开(公告)日：2015-04-09

申请号：US14509792

申请日：2014-10-08

Applicant: Tula Technology Inc.

Inventor： Geoffrey ROUTLEDGE ,  Mark A. SHOST ,  Biswa R. GHOSH ,  Louis J. SERRANO ,  Mark WILCUTTS

IPC: F01N1/06 ,  F02D17/02

CPC classification number: F01N1/065 ,  B60K5/12 ,  F01N1/165 ,  F02D17/02

Abstract: In one aspect, a system for reducing noise or vibration generated by an internal combustion engine is described. An engine controller is arranged to generate firing information suitable for operating the working chambers of the engine in a skip fire manner to deliver a desired amount of torque. A noise/vibration reduction unit is arranged to help reduce noise or vibration based on the firing information. The noise/vibration controller actively controls a device that is not a part of the engine to alter an NVH characteristic of the vehicle in a desired manner based at least in part on a skip fire characteristic.

Abstract translation: 在一个方面，描述了一种用于降低由内燃机产生的噪音或振动的系统。 发动机控制器布置成产生适于以跳火方式操作发动机的工作室的发射信息，以输送期望的扭矩量。 噪声/减振单元被布置成基于发射信息来帮助减少噪声或振动。 噪声/振动控制器主动地控制不是发动机的一部分的装置，至少部分地基于跳火特性，以期望的方式改变车辆的NVH特性。