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公开(公告)号:US09850853B2
公开(公告)日:2017-12-26
申请号:US13853680
申请日:2013-03-29
发明人: Aed M. Dudar , Robert Roy Jentz
IPC分类号: B60L9/00 , B60L11/00 , G05D1/00 , G05D3/00 , G06F7/00 , G06F17/00 , F02M25/08 , F02D41/22 , F02D41/00 , F02D19/08 , F02D41/04
CPC分类号: F02M25/0809 , F02D19/084 , F02D19/085 , F02D41/0025 , F02D41/042 , F02D41/22 , F02D2041/225 , F02D2200/0606 , F02D2200/0612 , F02D2200/703 , Y02T10/36 , Y10S903/93
摘要: Methods and systems are provided for estimating fuel volatility. During a vehicle-off condition following a refueling event, fuel volatility may be estimated by operating a fuel pump of a fuel system immediately after the refueling event while a fuel tank temperature is stable. Based on estimated fuel volatility, fuel injection amount and leak test thresholds may be adjusted.
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公开(公告)号:US09291110B2
公开(公告)日:2016-03-22
申请号:US14241230
申请日:2011-08-29
CPC分类号: F02D19/084 , F02B17/005 , F02D13/0223 , F02D13/0273 , F02D19/085 , F02D19/087 , F02D41/3094 , F02D41/405 , F02D2200/0611 , Y02T10/18 , Y02T10/36
摘要: When an alcohol mixed fuel is supplied to an internal combustion engine, the magnitude of the alcohol concentration is determined, and the magnitude of an operation state temperature is determined on the basis of the determination. When the alcohol concentration is high and the operation state temperature is low, the generation of intermediate products, which are alcohol oxides contained in unburned alcohol mixed fuel, is promoted, and the intermediate products generated are trapped in an intake passage by opening an intake valve in the expansion stroke of the internal combustion engine.
摘要翻译: 当将醇混合燃料供应到内燃机时,确定酒精浓度的大小,并且基于该确定来确定操作状态温度的大小。 当醇浓度高并且操作状态温度低时,促进了在未燃烧的醇混合燃料中包含的醇氧化物的中间产物的产生,并且通过打开进气阀来产生的中间产物被捕获在进气通道中 在内燃机的膨胀冲程中。
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公开(公告)号:US20140026847A1
公开(公告)日:2014-01-30
申请号:US13559946
申请日:2012-07-27
申请人: Martin Willi , George Donaldson
发明人: Martin Willi , George Donaldson
IPC分类号: F02B17/00
CPC分类号: F02D41/0025 , F02B17/00 , F02B17/005 , F02B23/0663 , F02B23/0696 , F02D19/0694 , F02D19/081 , F02D19/084 , F02D19/085 , Y02T10/125 , Y02T10/36
摘要: A method of operating an internal combustion engine uses fuels having different reactivities obtained from the same fuel source. A first fuel having a first reactivity is stored in a fuel reservoir. A portion of the first fuel is converted to a second fuel having a second reactivity. The first fuel is introduced into a combustion chamber having a piston moving in a cylinder at a first time when the piston is relatively closer to a bottom dead center (BDC) position and the second fuel is introduced into the combustion chamber at a second time when the piston is relatively further from the BDC position. In an aspect, the convertor may be adjustable to alter the reactivity of the second fuel. In an aspect, the convertor may use a processing fluid associated with the engine to convert the first fuel to the second fuel.
摘要翻译: 操作内燃机的方法使用从相同燃料源获得的具有不同反应性的燃料。 具有第一反应性的第一燃料储存在燃料储存器中。 第一燃料的一部分被转化为具有第二反应性的第二燃料。 当活塞相对靠近下死点(BDC)位置时,第一燃料被引入到具有在气缸中移动的活塞的燃烧室中,并且第二燃料在第二时间被引入燃烧室 活塞与BDC位置相对较远。 在一方面,转换器可以是可调节的,以改变第二燃料的反应性。 在一方面,转换器可以使用与发动机相关联的处理流体将第一燃料转换成第二燃料。
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公开(公告)号:US20120042848A1
公开(公告)日:2012-02-23
申请号:US12860013
申请日:2010-08-20
IPC分类号: F02B39/00
CPC分类号: F02D19/081 , F02D19/085 , Y02T10/36
摘要: An apparatus and method discharge fuel stabilizer to a carburetor bowl of an engine during or after completion of engine shutdown.
摘要翻译: 一种装置和方法,在发动机关闭完成期间或之后,将燃料稳定器排放到发动机的化油器碗。
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公开(公告)号:US06947830B1
公开(公告)日:2005-09-20
申请号:US10930926
申请日:2004-08-31
申请人: Walt Froloff , Kenneth C. Miller
发明人: Walt Froloff , Kenneth C. Miller
CPC分类号: F02D35/027 , F02B1/12 , F02B3/06 , F02D19/061 , F02D19/0644 , F02D19/0649 , F02D19/085 , F02D35/023 , F02D41/0025 , F02D41/1402 , F02D41/3035 , F02D41/3076 , F02P5/152 , Y02T10/128 , Y02T10/36 , Y02T10/46
摘要: A programmable internal combustion engine, comprising programmable computer processor controlled engine components including electronically controllable valves, fuel injection and air fuel mixture ignition cylinder components, is programmed to dynamically reconfigure an internal combustion engine to run on a range of combustible fuels. Cylinder independent ignition test modes using Spark Ignition, Homogeneous Charge Compression Ignition and Compression Ignition are performed to determine the best ignition mode and cylinder component states for combusting a given fuel. In situ real-time testing of a given fuel yield results for a dynamic reconfiguration of individual component states providing an engine which can run on a range of combustible fuels and fuel blends.
摘要翻译: 可编程内燃机,包括可编程计算机处理器控制的发动机部件,包括电子可控阀,燃料喷射和空气燃料混合物点火汽缸部件,被编程为动态地重新配置内燃机以在可燃燃料的范围上运行。 使用火花点火,均质充量压缩点火和压缩点火的气缸独立点火试验模式,以确定燃烧给定燃料的最佳点火模式和气缸成分状态。 给定燃料产量的原位实时测试可以实现各个组分状态的动态重新配置,从而提供可在一系列可燃燃料和燃料混合物上运行的发动机。
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公开(公告)号:US09677489B2
公开(公告)日:2017-06-13
申请号:US13850716
申请日:2013-03-26
申请人: Robert Bosch GmbH
CPC分类号: F02D41/062 , F02D19/0655 , F02D19/085 , F02D41/0025 , F02D41/064 , F02D41/3076 , F02D41/3845 , F02D41/3863 , F02D41/403 , F02D2200/0602 , F02D2250/31
摘要: A method and control unit for a start of an Otto engine operated at low temperatures, using ethanol and/or gasoline, having direct injection. The method includes generating by a high pressure pump a fuel pressure in a high pressure system connected to a high pressure reservoir; a sensor monitoring the fuel pressure in the reservoir and the system; injecting the fuel, by an injector, from the reservoir into a cylinder of the engine, the fuel pressure, an injection quantity and a fuel quantity being specified by a control unit based on, sensor the fuel pressure being specified based on the operating point of the engine up to an upper pressure which is below a starting pressure to which the fuel is increased before the fuel injection, and the fuel pressure in the reservoir and the system being limited to a maximum by an opening pressure of a limiting valve.
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公开(公告)号:US20160047325A1
公开(公告)日:2016-02-18
申请号:US14778791
申请日:2013-03-27
发明人: Sven AHLINDER
CPC分类号: F02D19/088 , F02B37/24 , F02D19/08 , F02D19/084 , F02D19/085 , F02D19/087 , F02D41/0007 , F02D41/0025 , F02D41/0027 , F02D41/0072 , F02D41/1405 , F02D41/1446 , F02D41/1448 , F02D41/2432 , F02D41/26 , F02D2041/1409 , F02D2041/1423 , F02D2200/021 , F02D2200/0406 , F02D2200/0414 , F02D2200/0612 , F02D2200/101 , Y02T10/36
摘要: A method is provided for determining fuel blend in a dual fuel mixture including a first and a second fuel in an internal combustion engine. The method includes the steps of measuring multiple engine parameters using sensors during transient cycle operation for a predetermined range of engine loads and fuel blends; using system identification of transient time series of the measurements to determine one or more relevant engine parameters; determining a model for estimation of the fuel blend based on said one or more engine parameters; using the model fur determining a current fuel blend during transient operation using current measured values of the one or more engine parameters, and using the calculated current fuel blend for controlling the amount of dual fuel mixture injected into each cylinder of the internal combustion engine. A vehicle and a computer program product using the method are also provided.
摘要翻译: 提供一种用于确定包括内燃机中的第一和第二燃料的双燃料混合物中的燃料共混物的方法。 该方法包括以下步骤:在预定范围的发动机负载和燃料混合物的瞬态循环操作期间使用传感器测量多个发动机参数; 使用系统识别瞬态时间序列的测量来确定一个或多个相关的发动机参数; 基于所述一个或多个发动机参数来确定用于估计燃料混合物的模型; 使用所述模型,在瞬态操作期间使用所述一个或多个发动机参数的当前测量值来确定当前燃料混合,并且使用所计算的当前燃料混合物来控制喷射到所述内燃机的每个气缸中的双燃料混合物的量。 还提供了使用该方法的车辆和计算机程序产品。
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公开(公告)号:US20150292418A1
公开(公告)日:2015-10-15
申请号:US14435791
申请日:2013-10-10
CPC分类号: F02D19/088 , F01M11/10 , F01M2001/165 , F02D19/0607 , F02D19/084 , F02D19/085 , F02D19/087 , F02D41/0025 , F02D41/047 , F02D2200/021 , F02D2200/023 , F02D2200/0606 , F02D2200/0611 , F02D2200/0612 , F02D2200/0614 , F02D2250/11 , Y02T10/36
摘要: A method for determining the composition of a fuel in a lubricant in an internal combustion engine in disclosed. The composition of a fuel having at least a first portion of a first fuel component and a second portion of a second fuel component is predefined. The mass flow with which the fuel is introduced into the lubricant in an introduction phase or discharged from the lubricant and from the housing in a discharge phase is determined. The composition of the mass flow is determined from a first mass flow of the first fuel component and a second mass flow of the second fuel component, which are determined based on a) an introduction parameter in the introduction phase or a discharge parameter in the discharge phase, and b) the first portion of the first fuel component and the second portion of the second fuel component in the fuel.
摘要翻译: 一种用于确定所公开的内燃机中的润滑剂中的燃料的组成的方法。 预定了具有至少第一燃料部件的第一部分和第二燃料部件的第二部分的燃料的组成。 确定在引入阶段将燃料引入润滑剂或从润滑剂排出的燃料和在排放阶段从壳体引入的质量流。 质量流量的组成由第一燃料部件的第一质量流量和第二燃料部件的第二质量流量确定,其基于a)引入阶段中的引入参数或放电中的放电参数确定 相和b)燃料中的第一燃料部件的第一部分和第二燃料部件的第二部分。
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公开(公告)号:US20140297071A1
公开(公告)日:2014-10-02
申请号:US13853680
申请日:2013-03-29
发明人: Aed M. Dudar , Robert Roy Jentz
CPC分类号: F02M25/0809 , F02D19/084 , F02D19/085 , F02D41/0025 , F02D41/042 , F02D41/22 , F02D2041/225 , F02D2200/0606 , F02D2200/0612 , F02D2200/703 , Y02T10/36 , Y10S903/93
摘要: Methods and systems are provided for estimating fuel volatility. During a vehicle-off condition following a refueling event, fuel volatility may be estimated. Based on estimated fuel volatility, fuel injection amount and leak test thresholds may be adjusted.
摘要翻译: 提供了用于估计燃料挥发性的方法和系统。 在加油事件之后的停车状态下,可能会估计燃油波动。 根据估计的燃料挥发性,可以调整燃料喷射量和泄漏测试阈值。
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公开(公告)号:US20140222314A1
公开(公告)日:2014-08-07
申请号:US13758901
申请日:2013-02-04
IPC分类号: F02D41/40
CPC分类号: F02D41/403 , F02D19/0649 , F02D19/0652 , F02D19/085 , F02D19/087 , F02D35/023 , F02D41/0007 , F02D41/0025 , F02D41/005 , F02D41/1454 , F02D41/40 , F02D41/401 , F02D41/402 , F02D2200/0612 , Y02T10/44
摘要: Methods and systems for adjusting a plurality of fuel injections supplied to a cylinder during a cycle of the cylinder are described. In one example, fuel amounts are adjusted in response to a biodiesel concentration in fuel supplied to an engine.
摘要翻译: 描述了在气缸的循环期间调节供应到气缸的多个燃料喷射的方法和系统。 在一个实例中,响应于供应给发动机的燃料中的生物柴油浓度来调节燃料量。
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