-
公开(公告)号：US5076647A
公开(公告)日：1991-12-31
申请号：US555282
申请日：1990-07-19
CPC分类号： B60T8/341 , B60T8/4872 , Y10T137/7834
摘要： The piloted pressure relief valve (90) comprises a valve body (92) having a stepped bore (96) which receives a stationary bearing member (110) with a central through opening (117) through which extends a longitudinal extension (137) of a movable piston (130). The movable piston (130) has one end (133) sealingly received within a reduced diameter section (97) of the bore (96) and the opposite longitudinal extension (137) engages a valve member (154) captured between the bearing member (110) and a shoulder of the bore (96). The moveable piston (130) has a longitudinal through passage (132) permitting fluid flow therethrough when the piston (130) moves away from the valve member (154). A spring (140) disposed within the stepped bore (96) biases the piston (130) toward the valve member (154). The relief valve (90) enables a pumpback traction control system (10) to relieve fluid pressure buildup to the master cylinder ( 12) when a predetermined pressure limit is exceeded.
摘要翻译： 引导的减压阀（90）包括具有阶梯孔（96）的阀体（92），其接收具有中心通孔（117）的固定轴承构件（110），延伸部分 活动活塞（130）。 可移动活塞（130）具有密封地容纳在孔（96）的直径减小的部分（97）内的一端（133），并且相对的纵向延伸部（137）与捕获在支承构件（110）之间的阀构件 ）和孔（96）的肩部。 当活塞（130）离开阀构件（154）移动时，可移动活塞（130）具有允许流体流过其中的纵向通道（132）。 设置在阶梯孔（96）内的弹簧（140）朝向阀构件（154）偏压活塞（130）。 当超过预定的压力极限时，安全阀（90）使得回抽式牵引力控制系统（10）可以缓解主缸（12）的液压累积。
-
2.发明授权Anti-lock braking system providing pump motor duty cycle based on deceleration and motor voltage feed back 失效防抱死制动系统提供基于减速和电机电压反馈的泵电机占空比
公开(公告)号：US5487593A
公开(公告)日：1996-01-30
申请号：US344766
申请日：1994-11-23
IPC分类号： B60T8/1763 , B60T8/40 , B60T8/90 , F04B49/06 , B60T13/18
CPC分类号： F04B49/065 , B60T8/17636 , B60T8/4059 , B60T8/90 , F04B2203/0202
摘要： An anti-lock braking system (1) includes an electronic control unit or ECU having software which utilizes inputs of deceleration and pump motor voltage feedback to effect an appropriate duty cycle for the pump motor. By utilizing vehicle velocity, calculated vehicle deceleration and wheel deceleration to estimate the type of surface engaged by the vehicle wheels, and utilizing motor voltage to estimate pump load, the duty cycle of the motor may be varied so that low brake pedal effort braking has the benefit of less pump motor operation and reduced pump motor noise.
摘要翻译： 防抱死制动系统（1）包括具有使用减速输入和泵电机电压反馈的软件的电子控制单元或ECU来实现泵电机的适当占空比。 通过利用车辆速度，计算车辆减速度和车轮减速度来估计车轮所接合的表面的类型，并且利用电动机电压来估计泵负载，可以改变电动机的占空比，使得低的制动踏板力制动具有 减少泵电机运行的效果，降低泵电机噪音。
-
3.发明授权公开(公告)号：US08863504B2
公开(公告)日：2014-10-21
申请号：US12894965
申请日：2010-09-30
CPC分类号： F01N3/208 , F01N11/00 , F01N2560/026 , F01N2610/02 , F01N2610/14 , F01N2900/1621 , F01N2900/1806 , Y02T10/24 , Y02T10/47
摘要： A method includes determining a first NOx conversion efficiency (η) value and determining that a diesel exhaust fluid (DEF) level has increased a threshold amount. Further, the method includes determining a second NOx conversion η value and comparing the first NOx conversion η value and the second NOx conversion η value, determining a NOx conversion η change in response to comparing, and determining a DEF quality indicator in response to the NOx conversion η change.
摘要翻译： 一种方法包括确定第一NOx转化效率（＆eegr）值并确定柴油机废气流体（DEF）水平已经增加了阈值量。 此外，该方法包括确定第二NOx转化＆ 价值和比较第一个NOx转化和eegr; 值和第二NOx转化率 价值，确定NOx转化率 响应于比较而改变，并且响应于NOx转化和确定DEF质量指标; 更改。
-
公开(公告)号：US08155860B2
公开(公告)日：2012-04-10
申请号：US12206088
申请日：2008-09-08
申请人： Javier Franco , Thomas A. Grana , Daniel D. Wilhelm , Xiao Lin
发明人： Javier Franco , Thomas A. Grana , Daniel D. Wilhelm , Xiao Lin
IPC分类号： F02D41/00
CPC分类号： F01N3/0253 , F01N11/00 , F01N2550/05 , F01N2610/02 , F01N2610/03 , F01N2900/1808 , Y02T10/47
摘要： A real time, average pressure difference method for monitoring doser efficiency is described that determines the difference between the average pressure when the doser is not injecting and the average pressure when the doser is injecting at a predetermined commanded injection rate. The average pressure difference method results in improved doser efficiency monitoring. The method can be implemented in a number of areas. For example, in a diesel truck application, the doser efficiency can be monitored accurately in real time.
摘要翻译： 描述了用于监测加料器效率的实时平均压力差方法，其确定当不注射加料器时的平均压力与加料器以预定的指令喷射速率注射时的平均压力之间的差。 平均压力差方法可以改善剂量效率监测。 该方法可以在许多方面实现。 例如，在柴油卡车应用中，可以准确地实时监控加料器效率。
-
5.发明申请公开(公告)号：US20110209461A1
公开(公告)日：2011-09-01
申请号：US12894965
申请日：2010-09-30
CPC分类号： F01N3/208 , F01N11/00 , F01N2560/026 , F01N2610/02 , F01N2610/14 , F01N2900/1621 , F01N2900/1806 , Y02T10/24 , Y02T10/47
摘要： A method includes determining a first NOx conversion efficiency (η) value and determining that a diesel exhaust fluid (DEF) level has increased a threshold amount. Further, the method includes determining a second NOx conversion η value and comparing the first NOx conversion η value and the second NOx conversion η value, determining a NOx conversion η change in response to comparing, and determining a DEF quality indicator in response to the NOx conversion η change.
摘要翻译： 一种方法包括确定第一NOx转化效率（＆eegr）值并确定柴油机废气流体（DEF）水平已经增加了阈值量。 此外，该方法包括确定第二NOx转化＆ 价值和比较第一个NOx转化和eegr; 值和第二NOx转化率 价值，确定NOx转化率 响应于比较而改变，并且响应于NOx转化和确定DEF质量指标; 更改。
-
公开(公告)号：US07788911B2
公开(公告)日：2010-09-07
申请号：US11491207
申请日：2006-07-21
申请人： Yuetao Zhang , Daniel D. Wilhelm , Joseph M. Brault , Venkata Lakkireddy , James A. Cramer , Thomas A. Grana
发明人： Yuetao Zhang , Daniel D. Wilhelm , Joseph M. Brault , Venkata Lakkireddy , James A. Cramer , Thomas A. Grana
CPC分类号： F01N3/0253 , F01N3/035 , F01N9/00 , F01N2560/06 , F01N2570/12 , F01N2900/0421 , F01N2900/0422 , F02D41/027 , F02D41/1446 , Y02T10/47
摘要： A system, method and computer operable code is disclosed for reducing HC and liquid accumulation in an exhaust gas treatment system. A timer is used to monitor the amount of time the system spends in either absorption mode or desorption mode. If the exhaust gas temperature at the inlet of a oxidation catalyst device is below an absorption threshold, the timer is instructed to count up. If the exhaust gas temperature is above a desorption threshold, the timer is instructed to count down. At a predetermined timer threshold value, the engine is instructed to enter a thermal management mode operable to reduce accumulation of HC and liquid in the exhaust gas management system.
摘要翻译： 公开了一种用于减少废气处理系统中的HC和液体积聚的系统，方法和计算机可操作的代码。 定时器用于监视系统在吸收模式或解吸模式下花费的时间量。 如果氧化催化剂装置的入口处的废气温度低于吸收阈值，则指示计时器向上计数。 如果废气温度高于解吸阈值，则指示定时器倒数。 在预定的定时器阈值下，指示发动机进入可以减少HC和液体在废气管理系统中积聚的热管理模式。
-
公开(公告)号：US07409274B2
公开(公告)日：2008-08-05
申请号：US11204076
申请日：2005-08-15
IPC分类号： G06F19/00
CPC分类号： G07C5/008 , F02D41/1406
摘要： An apparatus, system, and method are disclosed for improving engine development. Engine development is improved by equipping a vehicle with a data logger to collect engine performance data, automatically retrieving the data via a secure local wireless network, uploading the data to an enterprise communication server via a secure wide area network, and analyzing the data. The vehicles and vehicle depot may be equipped with WAPs. The wide area network may comprise a VPN over the internet. In certain embodiments, the secure local wireless network is only accessible to wireless devices with registered MAC addresses.
摘要翻译： 公开了一种用于改进发动机开发的装置，系统和方法。 通过为车辆配备数据记录器来收集发动机性能数据，通过安全的本地无线网络自动检索数据，通过安全的广域网将数据上传到企业通信服务器以及分析数据，来改善发动机开发。 车辆和车辆仓库可能配备有WAP。 广域网可以包括互联网上的VPN。 在某些实施例中，安全本地无线网络仅对具有注册MAC地址的无线设备可访问。
-
公开(公告)号：US07089738B1
公开(公告)日：2006-08-15
申请号：US11102271
申请日：2005-04-09
CPC分类号： F02B37/24 , F02B29/0406 , F02M26/05 , F02M26/23 , F02M26/47 , F02M26/48 , F02M26/49 , F02M2026/002 , Y02T10/144
摘要： A system for controlling turbocharger compressor surge includes a turbocharger compressor fluidly coupled to an engine intake manifold, an exhaust gas recirculation (EGR) valve disposed in-line with an EGR conduit fluidly coupled between the engine intake and exhaust manifolds, means for determining a mass flow parameter, a speed sensor producing a speed signal indicative of turbocharger speed, and a control computer configured to determine a mass flow rate surge value, corresponding to a fresh air mass flow rate above which turbocharger compressor surge is avoided, as a function of the speed signal, and to limit the EGR valve position and VGT position as a function of the mass flow parameter and the mass flow rate surge value to maintain exhaust gas flow through the EGR valve at a flow rate below which turbocharger compressor surge is avoided.
摘要翻译： 用于控制涡轮增压器压缩机喘振的系统包括流体耦合到发动机进气歧管的涡轮增压器压缩机，与流体地联接在发动机进气歧管和排气歧管之间的EGR导管配合设置的排气再循环（EGR）阀，用于确定质量 流量参数，产生表示涡轮增压器速度的速度信号的速度传感器，以及控制计算机，其被配置为根据涡流增压器压缩机浪涌被避免的新鲜空气质量流量来确定质量流量浪涌值， 速度信号，并且作为质量流量参数和质量流量浪涌值的函数来限制EGR阀位置和VGT位置，以保持排气在低于该涡轮增压器压缩机喘振的流量下流过EGR阀。
-
9.发明授权公开(公告)号：US07587892B2
公开(公告)日：2009-09-15
申请号：US11301998
申请日：2005-12-13
IPC分类号： F01N3/00
摘要： An apparatus, system, and method are disclosed for adapting a regeneration profile for a particulate filter. A controller's input module receives inputs relating to conditions of the filter or engine, and a regeneration vector module creates a regeneration vector. The regeneration vector is based on the inputs and comprises a plurality of regeneration parameters. An output module directs a regeneration mechanism to regenerate the particulate filter according to the regeneration vector. The inputs may include filter condition and regeneration opportunity availability, and the parameters may include temperature, particulate load, exhaust composition and flow rate, and regeneration opportunity recognition.
摘要翻译： 公开了用于适应微粒过滤器的再生轮廓的装置，系统和方法。 控制器的输入模块接收与过滤器或发动机的条件相关的输入，并且再生矢量模块产生再生矢量。 再生矢量基于输入并且包括多个再生参数。 输出模块根据再生向量引导再生机构再生微粒过滤器。 输入可以包括过滤条件和再生机会可用性，并且参数可以包括温度，颗粒负荷，排气组成和流速以及再生机会识别。
-
公开(公告)号：US20080250773A1
公开(公告)日：2008-10-16
申请号：US12074697
申请日：2008-03-05
申请人： Yuetao Zhang , Daniel D. Wilhelm , Thomas A. Grana
发明人： Yuetao Zhang , Daniel D. Wilhelm , Thomas A. Grana
IPC分类号： F01N9/00
CPC分类号： F01N3/021 , F01N2260/02 , F01N2430/00 , F01N2560/025 , F01N2560/06 , F02D41/029 , F02D41/1454 , F02D2041/0265 , F02D2200/0802 , F02D2200/0812 , Y02T10/20
摘要： A system comprises an engine including an exhaust system with a particle filter operable to collect particulate matter in exhaust produced by the engine, a sensor arrangement, a controller, and one or more engine control devices. The sensor arrangement provides a first sensor signal representative of oxygen in the exhaust and a second sensor signal representative of a temperature of the particle filter. The controller regulates operation of the particle filter in response to the sensor arrangement. The controller is structured to generate one or more output signals corresponding to a minimum exhaust flow rate as a function of the first and second sensor signals. The control devices are responsive to the one or more output signals to provide the minimum exhaust flow rate to the filter.
-
-
-
-
-
-
-
-
-
搜索结果
14 条记录 (耗时 0.018 秒)