RU2016133698A - СПОСОБ СНИЖЕНИЯ ВЫБРОСОВ NOx ИЗ ДВИГАТЕЛЯ - Google Patents
СПОСОБ СНИЖЕНИЯ ВЫБРОСОВ NOx ИЗ ДВИГАТЕЛЯ Download PDFInfo
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- RU2016133698A RU2016133698A RU2016133698A RU2016133698A RU2016133698A RU 2016133698 A RU2016133698 A RU 2016133698A RU 2016133698 A RU2016133698 A RU 2016133698A RU 2016133698 A RU2016133698 A RU 2016133698A RU 2016133698 A RU2016133698 A RU 2016133698A
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- engine
- torque
- nox
- electric machine
- supplied
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- 238000000034 method Methods 0.000 title claims 8
- 239000000446 fuel Substances 0.000 claims 6
- 238000000746 purification Methods 0.000 claims 4
- 230000001133 acceleration Effects 0.000 claims 3
- 239000007789 gas Substances 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- 230000003197 catalytic effect Effects 0.000 claims 1
- 238000004146 energy storage Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/146—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an NOx content or concentration
- F02D41/1461—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an NOx content or concentration of the exhaust gases emitted by the engine
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- F02M26/45—Sensors specially adapted for EGR systems
- F02M26/46—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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Claims (15)
1. Способ снижения NOx, вырабатываемых двигателем моторного транспортного средства во время события разгона, содержащий этапы, на которых идентифицируют, что требование крутящего момента от пользователя моторного транспортного средства будет давать неприемлемо высокий уровень выбросов NOx из двигателя, и, в ответ на упомянутую идентификацию, используют электрическую машину для прикладывания крутящего момента к приводу на ведущие колеса моторного транспортного средства, так чтобы требование крутящего момента от пользователя удовлетворялось комбинацией крутящего момента, подаваемого электрической машиной, и крутящего момента, подаваемого двигателем, и снижают заданное значение крутящего момента двигателя для компенсации дополнительного крутящего момента, подаваемого электрической машиной, при этом снижение заданного значения крутящего момента двигателя для двигателя приводит к снижению расхода подачи топлива в двигатель и к повышению отношения количества воздуха к количеству топлива смеси, сжигаемой двигателем.
2. Способ по п. 1, в котором количество топлива, подаваемого во время события разгона меньше, чем требуется для удовлетворения требования крутящего момента, если крутящий момент не подается электрической машиной.
3. Способ по п. 1 или 2, в котором заданное значение крутящего момента двигателя постепенно повышается вслед за требованием крутящего момента от водителя до тех пор, пока заданное значение крутящего момента двигателя не достигнет уровня, равного требованию крутящего момента от водителя.
4. Способ по п. 1 или 2, в котором электрическая машина является совмещенным стартер-генератором, присоединенным с возможностью передачи приводного усилия к двигателю, а крутящий момент, подаваемый электрической машиной, является вспомогательным крутящим моментом, подаваемым совмещенным стартер-генератором на двигатель.
5. Способ по п. 1 или 2, в котором неприемлемо высокий уровень выбросов NOx из двигателя является уровнем, который превышает мгновенную производительность очистки от NOx устройства последующей очистки от NOx, выполненного с возможностью принимать отработавшие газы из двигателя.
6. Способ по п. 1 или 2, в котором идентификация того, что требование крутящего момента от пользователя моторного транспортного средства будет давать неприемлемо высокий уровень выбросов NOx из двигателя, содержит этап, на котором измеряют выбросы NOx из двигателя и используют измерение NOx для идентификации того, когда выбросы NOx неприемлемо высоки.
7. Способ по п. 1 или 2, в котором идентификация того, что требование крутящего момента от пользователя моторного транспортного средства будет давать неприемлемо высокий уровень выбросов NOx из двигателя, содержит этап, на котором используют модель NOx на выходе двигателя для идентификации того, когда выбросы NOx будут неприемлемо высокими.
8. Моторное транспортное средство, содержащее двигатель, электрическую машину, присоединенную с возможностью передачи приводного усилия к приводу на ведущие колеса транспортного средства, устройство накопления электрической энергии, присоединенное к электрической машине, устройство последующей очистки от NOx, выполненное с возможностью принимать отработавшие газы из двигателя, и электронный контроллер, выполненный с возможностью управлять двигателем и электрической машиной, и, когда электронный контроллер идентифицирует, что требование крутящего момента от пользователя моторного транспортного средства будет давать неприемлемо высокий уровень выбросов NOx из двигателя, электронный контроллер выполнен с возможностью, в ответ на упомянутую идентификацию, использовать электрическую машину для прикладывания крутящего момента к приводу на ведущие колеса моторного транспортного средства, так чтобы требование крутящего момента от пользователя удовлетворялось комбинацией крутящего момента, подаваемого электрической машиной, и крутящего момента, подаваемого двигателем, и дополнительно выполнен с возможностью снижать заданное значение крутящего момента двигателя, чтобы компенсировать дополнительный крутящий момент, подаваемый электрической машиной, при этом снижение заданного значения крутящего момента двигателя приводит к снижению расхода подачи топлива в двигатель и повышению отношения количества воздуха к количеству топлива смеси, сжигаемой двигателем.
9. Транспортное средство по п. 8, в котором количество топлива, подаваемого во время события разгона меньше, чем требуется для удовлетворения требования крутящего момента, если крутящий момент не подается электрической машиной.
10. Транспортное средство по п. 8 или 9, в котором заданное значение крутящего момента двигателя постепенно повышается электронным контроллером вслед за требованием крутящего момента от водителя до тех пор, пока заданное значение крутящего момента двигателя не достигнет уровня, равного требованию крутящего момента от водителя.
11. Транспортное средство по п. 8 или 9, в котором электрическая машина является совмещенным стартер-генератором, присоединенным с возможностью передачи приводного усилия к двигателю, а крутящий момент, подаваемый электрической машиной в привод на ведущие колеса, является вспомогательным крутящим моментом, подаваемым совмещенным стартер-генератором на двигатель.
12. Транспортное средство по п. 8 или 9, в котором неприемлемо высокий уровень выбросов NOx из двигателя является уровнем выбросов NOx, который превышает мгновенную производительность очистки от NOx устройства последующей очистки от NOx.
13. Транспортное средство по п. 8 или 9, при этом транспортное средство включает в себя датчик NOx, расположенный между двигателем и устройством последующей очистки от NOx, чтобы подавать сигнал, указывающий выбросы NOx, в электронный контроллер, а идентификация того, что текущее требование крутящего момента от пользователя моторного транспортного средства будет давать неприемлемо высокий уровень выбросов NOx из двигателя, содержит использование сигнала из датчика NOx для идентификации того, когда выбросы NOx неприемлемо высоки.
14. Транспортное средство по п. 8 или 9, в котором электронный контроллер включает в себя модель NOx на выходе двигателя, а идентификация того, что требование крутящего момента от пользователя моторного транспортного средства будет давать неприемлемо высокий уровень выбросов NOx из двигателя, содержит использование модели NOx на выходе двигателя для идентификации того, когда выбросы NOx будут неприемлемо высокими.
15. Транспортное средство по п. 8 или 9, в котором устройство последующей очистки от NOx является одним из уловителя обедненных NOx и каталитического нейтрализатора с избирательным восстановлением.
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US10920687B2 (en) * | 2016-11-15 | 2021-02-16 | Cummins Inc. | Spark ignition engine control with exhaust manifold pressure sensor |
US11110908B2 (en) * | 2017-04-17 | 2021-09-07 | Hyundai Motor Company | Hybrid vehicle and method of controlling mode transition thereof |
DE102017218829A1 (de) * | 2017-10-23 | 2019-04-25 | Ford Global Technologies, Llc | Verfahren zum Betrieb einer Abgasnachbehandlungsvorrichtung |
JP6863302B2 (ja) * | 2018-01-24 | 2021-04-21 | トヨタ自動車株式会社 | ハイブリッド車の排気浄化システム |
US11377088B2 (en) * | 2018-04-02 | 2022-07-05 | Cummins Inc. | Electric vehicles with engines and interaction with aftertreatment |
DE102018124922B4 (de) * | 2018-10-09 | 2020-10-01 | Denso Corporation | Diesel-Hybrid Antriebstechnik mit Harnstoff-freier NOx Umwandlung |
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