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公开(公告)号：US11766902B2
公开(公告)日：2023-09-26
申请号：US17101580
申请日：2020-11-23
发明人： Ethan D. Sanborn , James Fritz
IPC分类号： B60C99/00 , B60T13/66 , B60T13/68 , B60T8/175 , B60W10/188 , B60W10/192 , B60T8/26 , B60T8/1766 , B60T8/1769 , B60C11/03 , B60T7/12 , B60T8/32
CPC分类号： B60C99/003 , B60C11/0311 , B60T7/12 , B60T8/175 , B60T8/1766 , B60T8/1769 , B60T8/26 , B60T13/662 , B60T13/686 , B60W10/188 , B60W10/192 , B60T8/3205 , B60T2201/14 , B60T2240/02 , B60T2270/89
摘要： A vehicle includes a powerplant, such as an engine, configured to power front and rear wheels, and a controller. The controller is programmed to, brake a first of the front wheels and a first of the rear wheels while powering a second of the front wheels and a second of the rear wheels to warm those tires, and subsequently brake the second front wheel and the second rear wheel while powering the first front wheel and the first rear wheel to warm those tires.
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公开(公告)号：US11624336B2
公开(公告)日：2023-04-11
申请号：US16902645
申请日：2020-06-16
发明人： Michiel J. Van Nieuwstadt , Allen Lehmen , Daniel Buckrop , Marcus William Fried , Kenneth John Behr , Ethan D. Sanborn
摘要： Systems and methods for estimating a temperature of an after treatment device in an exhaust system of an engine are described. In one example, the temperature is estimated during condition when an engine exits a fuel cut-out mode and excess fuel is delivered to the after treatment device for the purpose of increasing after treatment device efficiency.
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公开(公告)号：US10563610B2
公开(公告)日：2020-02-18
申请号：US16184375
申请日：2018-11-08
摘要： Methods and systems are provided for reducing port injection fuel errors by selectively reactivating a direct fuel injector. Responsive to an increase in driver demand received while delivering fuel to a cylinder via port injection only, wherein the increase in driver demand is received late in the port injection window, the port injection error is addressed by reactivating a direct injector on the same engine cycle and delivering at least a portion of the fuel mass corresponding to the error via the direct injector. Additionally, a portion of the fuel mass may be delivered by the port injector on the same engine cycle by extending the end of injection timing, if possible.
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公开(公告)号：US10337445B2
公开(公告)日：2019-07-02
申请号：US14805068
申请日：2015-07-21
摘要： A method of operating an engine with dual fuel injection capabilities to address fuel rail over-pressure due to stagnating hot fuel is shown. The method comprises operating an engine cylinder with only port injection, and selectively activating and deactivating the second injector in response to a rail pressure increase of a fuel rail, the fuel rail coupled to the second injector, and deactivating the second injector in response to a rail pressure decrease of the fuel rail to a lower threshold determined based on engine operating conditions. In this way, degradation of the second injector may be reduced while maintaining a desired level of engine performance.
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公开(公告)号：US10094320B2
公开(公告)日：2018-10-09
申请号：US15133739
申请日：2016-04-20
发明人： Ethan D. Sanborn , Paul Hollar , Daniel Dusa , Joseph Lyle Thomas
摘要： Methods and systems are provided for reducing fueling errors resulting from pressure pulsations in a port injection fuel rail. The pressure pulsations result from pressure pulsations generated in a high pressure fuel pump delivering fuel to both the port injection fuel rail and a direct injection fuel rail. A center of a port injection fuel pulse is repositioned on a nearest fuel rail pressure sampling point in the advanced direction to improve the accuracy of the delivered fuel pulse.
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公开(公告)号：US20170022926A1
公开(公告)日：2017-01-26
申请号：US14805068
申请日：2015-07-21
CPC分类号： F02D41/3845 , F02D41/005 , F02D41/1446 , F02D41/3094 , F02D2041/3881 , F02D2200/0602 , F02D2200/0812 , F02M55/025 , F02M63/023 , F02M63/0285
摘要： A method of operating an engine with dual fuel injection capabilities to address fuel rail over-pressure due to stagnating hot fuel is shown. The method comprises operating an engine cylinder with only port injection, and selectively activating and deactivating the second injector in response to a rail pressure increase of a fuel rail, the fuel rail coupled to the second injector, and deactivating the second injector in response to a rail pressure decrease of the fuel rail to a lower threshold determined based on engine operating conditions. In this way, degradation of the second injector may be reduced while maintaining a desired level of engine performance.
摘要翻译： 示出了一种操作具有双燃料喷射能力的发动机以解决由于停滞的热燃料引起的燃料轨道过压的方法。 该方法包括操作仅具有端口喷射的发动机气缸，并且响应于燃料轨道的轨道压力增加而选择性地激活和去激活第二喷射器，燃料轨道耦合到第二喷射器，以及响应于第二喷射器而停用第二喷射器 基于发动机工作条件确定的燃料导轨的轨道压力降低到较低的阈值。 以这种方式，可以降低第二喷射器的劣化，同时保持期望的发动机性能水平。
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公开(公告)号：US20160377018A1
公开(公告)日：2016-12-29
申请号：US15133739
申请日：2016-04-20
发明人： Ethan D. Sanborn , Paul Hollar , Daniel Dusa , Joseph Lyle Thomas
CPC分类号： F02M63/0285 , F02D41/105 , F02D41/3094 , F02D41/345 , F02D2041/3881 , F02D2200/0602 , F02D2250/04 , F02M37/0041 , F02M63/029 , Y02T10/44
摘要： Methods and systems are provided for reducing fueling errors resulting from pressure pulsations in a port injection fuel rail. The pressure pulsations result from pressure pulsations generated in a high pressure fuel pump delivering fuel to both the port injection fuel rail and a direct injection fuel rail. A center of a port injection fuel pulse is repositioned on a nearest fuel rail pressure sampling point in the advanced direction to improve the accuracy of the delivered fuel pulse.
摘要翻译： 提供了用于减少由端口喷射燃料轨中的压力脉动引起的加油误差的方法和系统。 压力脉动是由在高压燃料泵中产生的压力脉动而产生的，所述高压燃料泵将燃料输送到端口喷射燃料轨道和直接喷射燃料轨道。 端口喷射燃料脉冲的中心在前进方向上重新定位在最近的燃料轨压力采样点上，以提高输送燃料脉冲的精度。
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公开(公告)号：US20160363091A1
公开(公告)日：2016-12-15
申请号：US15132044
申请日：2016-04-18
发明人： Ethan D. Sanborn , Joseph Lyle Thomas , Paul Hollar , Xiaoying Zhang , Gopichandra Surnilla , Stephen George Russ
IPC分类号： F02D41/30
CPC分类号： F02D41/3094 , F02D41/008 , F02D41/0085 , F02D41/0087 , F02D41/009 , F02D41/1456 , F02D41/221 , F02D2041/2027 , F02D2041/227 , F02D2250/26
摘要： Methods and systems for simultaneously operating port fuel injectors and direct fuel injectors of an internal combustion engine are described. In one example, operation of a port fuel injector is deactivated in response to an indication of reduced performance of a direct fuel injector so that degradation of the direct fuel injector may be reduced.
摘要翻译： 描述用于同时操作内燃机的端口燃料喷射器和直接燃料喷射器的方法和系统。 在一个示例中，响应于直接燃料喷射器的性能降低的指示，端口燃料喷射器的操作被停用，使得可以降低直接燃料喷射器的劣化。
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公开(公告)号：US20160363088A1
公开(公告)日：2016-12-15
申请号：US15131774
申请日：2016-04-18
IPC分类号： F02D41/30
CPC分类号： F02D41/3094 , F02D41/009 , F02D41/3017 , F02M69/046
摘要： Methods and systems for simultaneously operating port fuel injectors and direct fuel injectors of an internal combustion engine are described. In one example, different duration port fuel injection windows are provided to maximize fuel injection amount and improve accuracy of an amount of fuel injected during a cylinder cycle via port and direct fuel injectors.
摘要翻译： 描述用于同时操作内燃机的端口燃料喷射器和直接燃料喷射器的方法和系统。 在一个示例中，提供不同的持续时间端口燃料喷射窗口以最大化燃料喷射量并且提高在气缸循环期间经由端口和直接燃料喷射器喷射的燃料量的精度。
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公开(公告)号：US09404435B2
公开(公告)日：2016-08-02
申请号：US14556752
申请日：2014-12-01
发明人： Adithya Pravarun Re Ranga , Gopichandra Surnilla , Ethan D. Sanborn , Joseph Lyle Thomas , Mark Meinhart
CPC分类号： F02D41/3094 , F02D41/1454 , F02D41/2467
摘要： Systems and methods for improving fuel injection of an engine that includes a cylinder receiving fuel from two different fuel injectors is disclosed. In one example, a transfer function or gain of a direct fuel injector is adjusted in response to an exhaust lambda value and a fraction of fuel supplied to a cylinder during a cylinder cycle.
摘要翻译： 公开了一种用于改进燃料喷射的系统和方法，所述发动机包括从两个不同燃料喷射器接收燃料的气缸。 在一个示例中，响应于在气缸循环期间供应到气缸的排气λ值和燃料的一部分来调节直接燃料喷射器的传递函数或增益。
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