Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 8. Отображено 8.
21-02-2013 дата публикации

METHOD AND SYSTEM FOR COMPENSATING FOR ALCOHOL CONCENTRATION IN FUEL

Номер: US20130042846A1
Автор: Dawson Brandon M., Smith Stephen B., Surnilla Gopichandra, Zope Rohit Arvind
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

An engine system for determining an alcohol concentration in fuel is disclosed. In one example, engine throttle position, fuel pulse width, and air-fuel ratio form a basis for determining alcohol concentration of a fuel combusted in an engine. The system and its related method may improve engine operation in conjunction with detecting an alcohol concentration of a fuel. 1. An engine system , comprising:an engine;a first actuator coupled to the engine;a second actuator coupled to the engine;an exhaust gas oxygen sensor located in an exhaust passage of the engine; anda controller including instructions to adjust the first or second actuator in response to an alcohol concentration of a fuel combusted by the engine in response to the first actuator, the exhaust gas oxygen sensor, and a speed of the engine.2. The engine system of claim 1 , where the first actuator is an air intake throttle claim 1 , and where the second actuator is a fuel injector.3. The engine system of claim 1 , where first actuator is an air intake throttle claim 1 , and where the second actuator is an ignition system.4. The engine system of claim 1 , where the second actuator is adjusted in response to a position of the first actuator claim 1 , and where the first actuator an engine air intake throttle claim 1 , and where the second actuator is a fuel injector.5. The engine system of claim 1 , where the controller includes further instructions for regressing a plurality of coefficients from a plurality of parameters to determine alcohol concentration of a fuel being combusted in the engine.6. The engine system of claim 5 , where the controller includes further instructions for reducing error in an engine air flow mass or fuel flow mass based on the plurality of coefficients.7. A method for operating an engine claim 5 , comprising:adjusting an engine actuator in response to an alcohol concentration of a fuel combusted by the engine, the alcohol concentration based at least on a position of a throttle, ...

Подробнее
Номер записи: 1
05-12-2013 дата публикации

ARBITRATION STRATEGY FOR SLOW RESPONSE AND FAST RESPONSE TORQUE REQUESTS

Номер: US20130319369A1
Автор: Calmer Craig M., Fox Richard S., Kothandaraman Govindarajan, Schwab Zach, Stroh David J., Thomas Robert J., Zope Rohit
Принадлежит:

The present disclosure relates to a system for managing engine output that includes a machine manager module and a combustion module. In one embodiment, the combustion module includes a slow response pathway and a fast response pathway. The slow response pathway includes managing air and fuel actuators and the fast response pathway includes managing spark timing. According to one embodiment, managing spark timing comprises bringing a spark actuator to the middle of a spark timing range for bi-directional control and involves sacrificing engine efficiency for engine responsiveness. Further, the fast response pathway may be selectively enabled based upon an optimization index. 1. A system for managing engine output , comprising:a machine manager module; anda combustion module, the combustion module comprising:a slow response pathway, and a fast response pathway.2. The system of claim 1 , wherein the slow response pathway comprises managing air actuators or other actuators with similar response times.3. The system of claim 1 , wherein the fast response pathway comprises managing spark timing claim 1 , fuel injection claim 1 , or other actuators that can affect a change in engine output from one combustion event to the next.4. The system of claim 3 , wherein managing spark timing comprises bringing a spark actuator to the middle of a spark timing range for bi-directional control.5. The system of claim 4 , wherein bringing a spark actuator to the middle of a spark timing range comprises sacrificing engine efficiency for engine responsiveness.6. The system of claim 1 , wherein the fast response pathway is selectively enabled based on an optimization index.7. The system of claim 1 , wherein requested engine output that exceeds the ability of the fast response pathway to control is considered and managed in the slow response pathway.8. The system of claim 1 , wherein the combustion module identifies and tracks the source of the torque requests through the arbitration ...

Подробнее
Номер записи: 2
16-04-2020 дата публикации

ARBITRATION STRATEGY FOR SLOW RESPONSE AND FAST RESPONSE TORQUE REQUESTS

Номер: US20200116100A1
Автор: Calmer Craig M., Fox Richard S., Kothandaraman Govindarajan, Schwab Zachary, Stroh David J., Thomas Robert J., Zope Rohit
Принадлежит: CUMMINS IP, INC.

The present disclosure relates to systems and methods for managing engine output. A method includes receiving at least one of a torque input and an acceleration input; generating a torque request for an engine; receiving the torque request; and determining an amount of the torque request that can be provided by a fast response actuator including a spark timing actuator based on a governed torque fraction value based on existing operating conditions of the spark timing actuator and a torque fraction value indicative of a total torque request value and an anticipated future torque demand value. The method includes managing the spark timing actuator to produce the amount of torque; determining a remaining amount of the torque request that cannot be provided the fast response actuator based on an existing operating condition of the engine; and commanding a slow response actuator to provide the remaining amount of the torque request. 1. A method for managing engine output , comprising:receiving, by a control system, at least one of a torque input and an acceleration input;generating, by the control system, a torque request for an engine;receiving, by the control system, the torque request;determining, by the control system, an amount of the torque request that can be provided by a fast response actuator based on a governed torque fraction value and a torque fraction value, the fast response actuator including a spark timing actuator, wherein the governed torque fraction value is based on information indicative of existing operating conditions of the spark timing actuator, and wherein the torque fraction value is indicative of a total torque request value and an anticipated future torque demand value;managing, by the control system, the spark timing actuator to produce the amount of torque; anddetermining, by the control system, a remaining amount of the torque request that cannot be provided the fast response actuator based on an existing operating condition of the ...

Подробнее
Номер записи: 3
25-11-2014 дата публикации

Method and system for compensating for alcohol concentration in fuel

Номер: US8893665B2
Автор: Brandon M. Dawson, Gopichandra Surnilla, Rohit Arvind Zope, Stephen B. Smith
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

An engine system for determining an alcohol concentration in fuel is disclosed. In one example, engine throttle position, fuel pulse width, and air-fuel ratio form a basis for determining alcohol concentration of a fuel combusted in an engine. The system and its related method may improve engine operation in conjunction with detecting an alcohol concentration of a fuel.

Подробнее
Номер записи: 4
24-11-2022 дата публикации

Vehicle emissions management

Номер: WO2022245911A1
Автор: Chinmay RAO, Gayatri Adi, Kartavya Neema, Paul V. MOONJELLY, Rohit A. ZOPE
Принадлежит: Cummins Inc.

Disclosed herein are devices, systems, and methods relating to balancing engine performance and engine emissions of an engine in a vehicle in real time. In an example, a method can include sensing operation data indicative of an engine response during a current engine operation. The current ending operation can include a supervisory control of engine emissions. The method can include evaluating a response model to determine engine performance deviation data corresponding to an expected baseline engine performance and an expected current engine performance at the current engine operation. This evaluation can be performed via controller. This evaluation can be based on the operation data. The method can include generating and setting a performance constraint in response to evaluating the response model. The performance constraint can be set such that the engine performance deviation data is maintained at a controls objective that inhibits deterioration of the engine performance over time.

Подробнее
Номер записи: 5
27-03-2024 дата публикации

Vehicle emissions management

Номер: EP4341144A1
Автор: Chinmay RAO, Gayatri Adi, Kartavya Neema, Paul V. MOONJELLY, Rohit A. ZOPE
Принадлежит: Cummins Inc

Disclosed herein are devices, systems, and methods relating to balancing engine performance and engine emissions of an engine in a vehicle in real time. In an example, a method can include sensing operation data indicative of an engine response during a current engine operation. The current ending operation can include a supervisory control of engine emissions. The method can include evaluating a response model to determine engine performance deviation data corresponding to an expected baseline engine performance and an expected current engine performance at the current engine operation. This evaluation can be performed via controller. This evaluation can be based on the operation data. The method can include generating and setting a performance constraint in response to evaluating the response model. The performance constraint can be set such that the engine performance deviation data is maintained at a controls objective that inhibits deterioration of the engine performance over time.

Подробнее
Номер записи: 6
08-08-2024 дата публикации

Systems and methods for controlling exhaust temperature within aftertreatment systems

Номер: WO2024163809A1
Автор: Rohit Arvind Zope, Roopak Manoharrao INGOLE, Semih SAGENER, Sree Harsha RAYASAM, Uma Shankar KOMBANAIPUDUR SHANMUGASUNDARAM
Принадлежит: Cummins Inc.

Systems and methods for controlling exhaust temperature within aftertreatment systems are provided. One or more processing circuits are configured to: acquire temperature data regarding a temperature of exhaust gas entering an aftertreatment system from an engine; compare the temperature to a target temperature; and in response to the temperature deviating from the target temperature, provide at least one command to at least one of (a) the engine, (b) a fuel system configured to supply fuel to the engine, or (c) an air system configured to supply air to the engine to control (i) the temperature of the exhaust gas to maintain an aftertreatment temperature of one or more components of the aftertreatment system within a desirable temperature operating range and (ii) an air-to-fuel ratio to substantially maintain operation of the engine at an operating condition based on current demand.

Подробнее
Номер записи: 7
01-08-2024 дата публикации

Vehicle emissions management

Номер: US20240254909A1
Автор: Chinmay RAO, Gayatri Adi, Kartavya Neema, Paul V. MOONJELLY, Rohit A. ZOPE
Принадлежит: Cummins Inc

Disclosed herein are devices, systems, and methods relating to balancing engine performance and engine emissions of an engine in a vehicle in real time. In an example, a method can include sensing operation data indicative of an engine response during a current engine operation. The current ending operation can include a supervisory control of engine emissions. The method can include evaluating a response model to determine engine performance deviation data corresponding to an expected baseline engine performance and an expected current engine performance at the current engine operation. This evaluation can be performed via controller. This evaluation can be based on the operation data. The method can include generating and setting a performance constraint in response to evaluating the response model. The performance constraint can be set such that the engine performance deviation data is maintained at a controls objective that inhibits deterioration of the engine performance over time.

Подробнее
Номер записи: 8