专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20160169140A1 In-Range Sensor Fault Diagnostic System and Method 有权
标题翻译：范围内传感器故障诊断系统和方法
公开(公告)号：US20160169140A1
公开(公告)日：2016-06-16
申请号：US14570392
申请日：2014-12-15
申请人： Caterpillar Inc.
发明人： Mary L. Yeager , Francis L. Clark , Brandon Gregory , Parag Mehresh
IPC分类号： F02D41/26 , F02D37/02 , F02D41/14
CPC分类号： F02D41/26 , F02D35/023 , F02D37/02 , F02D41/009 , F02D41/1444 , F02D41/222 , F02D41/2474 , F02D2041/281 , F02D2041/286 , Y02T10/40
摘要： An internal combustion engine includes an electronic controller programmed to determine, for at least one combustion event in a combustion chamber, a theoretical polytropic constant, a measured polytropic constant, and a difference between the theoretical polytropic constant and the measured polytropic constant. The electronic controller is further programmed to calculate an adjusted pressure signal based on the pressure signal and the difference such that the adjusted pressure signal compensates for changes to an accuracy of the pressure sensor over time.
摘要翻译：一种内燃机包括一个电子控制器，其被编程用于为燃烧室中的至少一个燃烧事件确定理论多变常数，测量的多变常数以及理论多变常数与测得的多变常数之间的差。电子控制器还被编程为基于压力信号和差值来计算调整的压力信号，使得调节的压力信号补偿压力传感器随时间的精度的变化。

2. 发明申请

US20150192497A1 SYSTEM AND METHOD FOR DETECTING FAULT IN IGNITION SYSTEM 审中-公开
标题翻译：用于检测点火系统故障的系统和方法
公开(公告)号：US20150192497A1
公开(公告)日：2015-07-09
申请号：US14149860
申请日：2014-01-08
申请人： Caterpillar Inc.
发明人： Brandon Gregory , Francis L. Clark, III , James Cress
IPC分类号： G01M15/11 , G01M15/08
CPC分类号： G01M15/11 , F02D35/023 , F02D37/02 , F02D2041/228 , F02D2200/1015 , F02P5/1502 , F02P17/12 , G01M15/08 , Y02T10/46
摘要： An on-board diagnostic system for detecting a fault in an ignition system of an engine system having a cylinder is provided. The system includes an indicated mean effective pressure (IMEP) monitoring module for monitoring IMEP indicating average pressure in the cylinder during an operation cycle of the cylinder for an engine runtime. A misfire detection module detects misfire cycles associated with the cylinder based on the monitored IMEP. An ignition system diagnostic module communicatively coupled to the misfire detection module includes a statistical module and a control module. The statistical module determines a percentage of the misfire cycles during the engine runtime. The control module changes an operational parameter of the engine system when the percentage of the misfire cycles is less than a pre-defined threshold value or provides a warning message for required maintenance when the percentage of the misfire cycles is greater than the pre-defined threshold value.
摘要翻译：提供了一种用于检测具有气缸的发动机系统的点火系统中的故障的车载诊断系统。该系统包括用于监测IMEP的指示平均有效压力（IMEP）监测模块，其指示在用于发动机运行时的气缸的操作循环期间气缸中的平均压力。基于所监测的IMEP，失火检测模块检测与气缸相关联的失火循环。通信地耦合到失火检测模块的点火系统诊断模块包括统计模块和控制模块。统计模块确定发动机运行时间期间失火循环的百分比。当失火周期的百分比小于预定义的阈值时，控制模块会更改发动机系统的运行参数，或者当失火周期的百分比大于预定阈值时，提供所需维护的警告消息值。

3. 发明申请

US20160160776A1 Engine System and Method 审中-公开
标题翻译：发动机系统和方法
公开(公告)号：US20160160776A1
公开(公告)日：2016-06-09
申请号：US14563337
申请日：2014-12-08
申请人： Caterpillar Inc.
发明人： Mary L. Yeager , Francis L. Clark , Brandon Gregory
IPC分类号： F02D41/14 , F02D35/02 , F02D37/02 , F02D41/30 , F02P17/02
CPC分类号： F02D35/023 , F02D35/027 , F02D35/028 , F02D41/009 , F02D41/22 , F02D2041/228 , F02D2200/1015 , F02P5/152
摘要： A pressure sensor disposed to sense an engine cylinder pressure provides a pressure signal, and an engine timing sensor provides an engine timing signal to an electronic controller, which is programmed to receive and analyze the pressure and engine timing signals to determine a misfire signal, a peak pressure signal, a pressure rise rate, an actual ignition signal, and a center of combustion signal. The electronic controller is further programmed to activate a fault flag when at least one of the misfire signal, the peak pressure signal, the pressure rise rate, the actual ignition signal, and the center of combustion signal, indicates that an abnormal combustion is present in the cylinder.
摘要翻译：设置用于感测发动机气缸压力的压力传感器提供压力信号，并且发动机正时传感器向电子控制器提供发动机定时信号，其被编程为接收和分析压力和发动机定时信号以确定失火信号，峰值压力信号，压力上升率，实际点火信号和燃烧信号中心。电子控制器进一步被编程为当失火信号，峰值压力信号，压力上升率，实际点火信号和燃烧信号中心中的至少一个指示异常燃烧存在于气瓶。

4. 发明授权

US09435284B2 In-range sensor fault diagnostic system and method 有权
标题翻译：范围内传感器故障诊断系统及方法
公开(公告)号：US09435284B2
公开(公告)日：2016-09-06
申请号：US14570392
申请日：2014-12-15
申请人： Caterpillar Inc.
发明人： Mary L. Yeager , Francis L. Clark , Brandon Gregory , Parag Mehresh
IPC分类号： F02D41/32 , F02D41/26 , F02D41/14 , F02D37/02
CPC分类号： F02D41/26 , F02D35/023 , F02D37/02 , F02D41/009 , F02D41/1444 , F02D41/222 , F02D41/2474 , F02D2041/281 , F02D2041/286 , Y02T10/40
摘要： An internal combustion engine includes an electronic controller programmed to determine, for at least one combustion event in a combustion chamber, a theoretical polytropic constant, a measured polytropic constant, and a difference between the theoretical polytropic constant and the measured polytropic constant. The electronic controller is further programmed to calculate an adjusted pressure signal based on the pressure signal and the difference such that the adjusted pressure signal compensates for changes to an accuracy of the pressure sensor over time.
摘要翻译：一种内燃机包括一个电子控制器，其被编程用于为燃烧室中的至少一个燃烧事件确定理论多变常数，测量的多变常数以及理论多变常数与测得的多变常数之间的差。电子控制器还被编程为基于压力信号和差值来计算调整的压力信号，使得调节的压力信号补偿压力传感器随时间的精度的变化。

5. 发明申请

US20160160779A1 Prognostic Engine System and Method 审中-公开
标题翻译：预测发动机系统和方法
公开(公告)号：US20160160779A1
公开(公告)日：2016-06-09
申请号：US14563365
申请日：2014-12-08
申请人： CATERPILLAR INC.
发明人： Mary L. Yeager , Francis L. Clark , Brandon Gregory
IPC分类号： F02D41/22 , F02D35/02 , F02P5/153 , F02D41/34
CPC分类号： F02D41/22 , F02D35/023 , F02D41/009 , Y02T10/40
摘要： An electronic controller for an engine is programmed to operate in a prognostic mode, in which a baseline record of combustion parameters is created and stored in non-volatile memory, and in a diagnostic mode, in which an operating set of combustion parameters is compiled. During operation, the electronic controller retrieves the baseline record and compares it with the operating set to determine, in real time during engine operation, whether an abnormal combustion is present in the cylinder. The electronic controller activates at least one failure flag when the abnormal combustion is determined to be present.
摘要翻译：用于发动机的电子控制器被编程为以预测模式操作，其中燃烧参数的基线记录被创建并存储在非易失性存储器中，并且在诊断模式中，其中编译了一组操作的燃烧参数。在运行期间，电子控制器检索基线记录并将其与操作组进行比较，以便在发动机运行期间实时确定气缸中是否存在异常燃烧。当确定存在异常燃烧时，电子控制器激活至少一个故障标志。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式