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Patent Agency Ranking
公开(公告)号：US10830168B1
公开(公告)日：2020-11-10
申请号：US16388554
申请日：2019-04-18
Applicant: Caterpillar Inc.
Inventor： Christopher R. Gehrke , Travis E. Barnes , Anthony T. Petrou , David A. Pierpont
Abstract: A system may include at least one processor configured to receive a fuel signal indicative of an amount of fuel supplied to a cylinder of an internal combustion engine, receive an air signal indicative of a quantity of air supplied to the cylinder, and estimate a mean effective pressure in the cylinder based at least in part on the fuel signal and the air signal. The system may estimate an exhaust gas temperature for exhaust gas entering an exhaust manifold associated with the internal combustion engine, generate a rate of temperature change value for the exhaust manifold based at least in part on the exhaust gas temperature, generate an estimated exhaust manifold temperature based at least in part on the rate of temperature change value for the exhaust manifold, and estimate an exhaust gas temperature for exhaust gas exiting the exhaust manifold and entering a turbine of a turbocharger.
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公开(公告)号：US20200332736A1
公开(公告)日：2020-10-22
申请号：US16388554
申请日：2019-04-18
Applicant: Caterpillar Inc.
Inventor： Christopher R. Gehrke , Travis E. Barnes , Anthony T. Petrou , David A. Pierpont
Abstract: A system may include at least one processor configured to receive a fuel signal indicative of an amount of fuel supplied to a cylinder of an internal combustion engine, receive an air signal indicative of a quantity of air supplied to the cylinder, and estimate a mean effective pressure in the cylinder based at least in part on the fuel signal and the air signal. The system may estimate an exhaust gas temperature for exhaust gas entering an exhaust manifold associated with the internal combustion engine, generate a rate of temperature change value for the exhaust manifold based at least in part on the exhaust gas temperature, generate an estimated exhaust manifold temperature based at least in part on the rate of temperature change value for the exhaust manifold, and estimate an exhaust gas temperature for exhaust gas exiting the exhaust manifold and entering a turbine of a turbocharger.
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公开(公告)号：US09534546B2
公开(公告)日：2017-01-03
申请号：US14277471
申请日：2014-05-14
Applicant: Caterpillar Inc.
Inventor： Chad S. Nelson , Rino Marcon , Kirti C. Tamhane , Hariharan Ramachandran , Amina Naheed , Krishna R. Yejju , Kotaro Naruo , Mark Bright , Travis E. Barnes , Urvish B. Joshi , Ramya Gangishetty
CPC classification number: F02D33/02 , F02D17/00 , F02D17/04 , F02D41/0055 , F02D41/008 , F02D41/08 , F02D2200/0414 , Y02T10/47
Abstract: A method of operating an engine includes determining an intake air temperature and an engine speed. The method includes selectively initiating one of a first operating mode, a second operating mode and a third operating mode based on at least the intake air temperature and the engine speed. The first operating mode includes increasing the engine speed progressively by an incremental speed value. The second operating mode includes deactivating at least one Exhaust Gas Recirculation (EGR) cylinder of the engine. The third operating mode includes shutting down the engine.
Abstract translation: 一种操作发动机的方法包括确定进气温度和发动机转速。 该方法包括基于至少进气温度和发动机速度来选择性地启动第一操作模式，第二操作模式和第三操作模式中的一个。 第一操作模式包括逐渐增加发动机速度的增量速度值。 第二操作模式包括停用发动机的至少一个排气再循环（EGR）气缸。 第三种操作模式包括关闭发动机。
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公开(公告)号：US20140261310A1
公开(公告)日：2014-09-18
申请号：US13836232
申请日：2013-03-15
Applicant: CATERPILLAR INC.
Inventor： Keith N. E. Troisi , Travis E. Barnes , Alexandra L.V. Santos , Inderbir Dhillon , Stephan Roozenboom
IPC: F02D9/00
Abstract: A system for optimizing engine braking power is provided. The system includes an intake manifold configured to receive air from a compressed air source. The system includes an engine brake associated with a power source. The system also includes a bleed valve configured to bleed a portion of the air from the intake manifold. The system further includes a controller in communication with the bleed valve and configured to receive a status of the engine brake. The controller is configured to activate the bleed valve to bleed a portion of the air from the intake manifold based at least in part on the engine brake being active and based at least in part on a pre-determined relationship between an air pressure in the intake manifold and one or more parameters associated with the power source.
Abstract translation: 提供了一种用于优化发动机制动功率的系统。 该系统包括配置成从压缩空气源接收空气的进气歧管。 该系统包括与电源相关联的发动机制动器。 该系统还包括排气阀，其构造成从进气歧管排出一部分空气。 该系统还包括与放气阀连通并被配置为接收发动机制动器的状态的控制器。 控制器被配置成至少部分地基于发动机制动器是有效的并且至少部分地基于进气中的空气压力之间的预定关系来激活放气阀以从进气歧管排出一部分空气 歧管和与电源相关联的一个或多个参数。
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公开(公告)号：US20150330319A1
公开(公告)日：2015-11-19
申请号：US14277471
申请日：2014-05-14
Applicant: Caterpillar Inc.
Inventor： Chad S. Nelson , Rino Marcon , Kirti C. Tamhane , Hariharan Ramachandran , Amina Naheed , Krishna R. Yejju , Kotaro Naruo , Mark Bright , Travis E. Barnes , Urvish B. Joshi , Ramya Gangishetty
IPC: F02D33/02
CPC classification number: F02D33/02 , F02D17/00 , F02D17/04 , F02D41/0055 , F02D41/008 , F02D41/08 , F02D2200/0414 , Y02T10/47
Abstract: A method of operating an engine includes determining an intake air temperature and an engine speed. The method includes selectively initiating one of a first operating mode, a second operating mode and a third operating mode based on at least the intake air temperature and the engine speed. The first operating mode includes increasing the engine speed progressively by an incremental speed value. The second operating mode includes deactivating at least one Exhaust Gas Recirculation (EGR) cylinder of the engine. The third operating mode includes shutting down the engine.
Abstract translation: 一种操作发动机的方法包括确定进气温度和发动机转速。 该方法包括基于至少进气温度和发动机速度来选择性地启动第一操作模式，第二操作模式和第三操作模式中的一个。 第一操作模式包括逐渐增加发动机速度的增量速度值。 第二操作模式包括停用发动机的至少一个排气再循环（EGR）气缸。 第三种操作模式包括关闭发动机。
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