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1. 发明申请

US20180156692A1 INDUCTION DIAGNOSTICS FOR SKIP FIRE ENGINES 有权
公开(公告)号：US20180156692A1
公开(公告)日：2018-06-07
申请号：US15872675
申请日：2018-01-16
申请人： Tula Technology, Inc.
发明人： Shikui Kevin CHEN , Allan J. KOTWICKI , Joel D. VAN ESS , Robert S. BAILEY , Mohammad R. PIRJABERI
IPC分类号： G01M15/05 , F02M35/10 , G01M15/09
CPC分类号： G01M15/05 , F02M35/1038 , G01M15/09
摘要： A variety of methods, diagnostic modules and other arrangements for detecting air induction faults during operation of an internal combustion engine are described. In some embodiments, the intake manifold pressure is monitored with the intake pressure being read for each induction opportunity. Induction faults may be detected based at least in part on a comparison of the manifold pressure readings for sequential induction opportunities. In some embodiments, an induction fault is identified when the difference between the manifold pressure associated with an induction opportunity and the immediately preceding induction opportunity exceeds an induction fault threshold.

2. 发明授权

US09863356B2 Fuel rail pressure sensor diagnostic techniques 有权
公开(公告)号：US09863356B2
公开(公告)日：2018-01-09
申请号：US15193897
申请日：2016-06-27
申请人： Robert Stack , Jonathan D Stoffer
发明人： Robert Stack , Jonathan D Stoffer
IPC分类号： F02D41/22 , F02M65/00 , F02D41/12 , F02D41/26 , G01M15/09
CPC分类号： F02D41/222 , F02D41/123 , F02D41/26 , F02D2041/223 , F02D2041/228 , F02D2200/0602 , F02M65/003 , G01M15/09
摘要： A first computer-implemented diagnostic method can run in response to an imminent deceleration fuel cutoff (DFCO) event. A second computer-implemented diagnostic method can run on engine shutdown. Both diagnostic methods involve controlling fuel injectors and a fuel pump to make the fuel rail pressure change from a desired minimum to a desired maximum. Measurements from the fuel rail pressure sensor at these endpoints can then be used to detect a fault of the fuel rail pressure sensor. One or both diagnostic methods can be implemented.

3. 发明授权

US09856814B2 System for detecting a leakage in an intake line of an internal combustion engine 有权
公开(公告)号：US09856814B2
公开(公告)日：2018-01-02
申请号：US14493072
申请日：2014-09-22
申请人： FPT Industrial S.P.A.
发明人： Fabio Odello , Salvatore Musumeci , Francesco Dell'Unto
IPC分类号： F02D41/22 , F01N13/00 , F02D41/00 , F02D41/18 , F02D41/14 , F02M26/06 , F02M26/49 , G01M15/05 , G01M15/09 , F02M35/10
CPC分类号： F02D41/22 , F01N13/008 , F02D41/0007 , F02D41/0052 , F02D41/0072 , F02D41/1456 , F02D41/146 , F02D41/18 , F02D2200/0614 , F02M26/06 , F02M26/49 , F02M35/10386 , G01M15/05 , G01M15/09 , Y02T10/47
摘要： A system for detecting a leakage/failure in in an intake line of an internal combustion engine comprising an intake line (IL) and an exhaust line (EL), means (HFM) for measuring or for estimating a quantity of fresh air ({dot over (m)}HFM) entering said intake line (IL), means for measuring or for estimating a quantity of fuel ({dot over (m)}FUEL) injected in the engine (E), measurement or estimation means (λ and/or NOx), on the exhaust line, adapted to provide a first value (λmeasured) of an air/fuel ratio introduced in the internal combustion engine (E), the system comprising processing means (ECU) adapted to calculate a second value (λexp) of said air/fuel ratio, calculated on the basis of the measured and estimated quantities of fresh air ({dot over (m)}HFM) and fuel ({dot over (m)}FUEL) to calculate an error (λerr) between the first and the second value (λmeasured−λexp) and to detect a condition of leakage/failure if said error is outside a predefined interval [λerr−, λerr+] containing the value zero.

4. 发明申请

US20170328810A1 ABNORMALITY DIAGNOSIS DEVICE AND ABNORMALITY DIAGNOSIS METHOD FOR INTAKE SYSTEM OF INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：US20170328810A1
公开(公告)日：2017-11-16
申请号：US15590097
申请日：2017-05-09
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Toru YAEO
IPC分类号： G01M15/02 , F02M35/10 , G01M15/00 , G01M15/09
CPC分类号： G01M15/02 , F02M35/10163 , G01M15/00 , G01M15/09 , Y02T10/144
摘要： An electronic control unit diagnoses leakage abnormality in an intake system downstream from a supercharger provided in the intake system of the engine. The electronic control unit sets, as a supercharging region monitoring value, a ratio between a first air amount obtained from a detection value of an air flowmeter and a second air amount obtained from a detection value of an intake pressure sensor, the ratio being the ratio obtained when the engine is operated in a supercharging region. The electronic control unit also sets, as a non-supercharging region monitoring value, a ratio obtained when the engine is driven in a non-supercharging region. The electronic control unit determines the presence of the leakage abnormality in the intake system when the ratio of the supercharging region monitoring value to the non-supercharging region monitoring value is larger than a predetermined specified value.

5. 发明授权

US09752548B2 Method and processing system of sensed ionization current data for real time estimation of combustion chamber pressure in a spark ignition engine 有权
公开(公告)号：US09752548B2
公开(公告)日：2017-09-05
申请号：US14272980
申请日：2014-05-08
申请人： STMicroelectronics S.r.l.
发明人： DavideGiuseppe Patti , Mario Paparo
IPC分类号： G01V3/38 , F02P17/12 , F02D41/22 , F02D41/24 , F02D35/02 , G01M15/09 , G01M15/04
CPC分类号： F02P17/12 , F02D35/021 , F02D35/024 , F02D41/22 , F02D41/2422 , F02D41/2425 , G01M15/042 , G01M15/09 , Y02T10/40
摘要： The pressure in the combustion chamber of an electronically controlled spark plug ignition engine may be estimated in real time mode without specific sensors by processing sensed ionization current data to calculate features of the current waveform proven to be correlated to the pressure inside the engine cylinders and correlating them on the basis of a look up table of time invariant correlation coefficients generated through a calibration campaign of tests on a test engine purposely equipped with sensors. A mathematical model of the electrical and physical spark plug ignition system and combustion chamber of the engine is refined during calibration by iteratively testing the interactive performance of correlation coefficients of related terms of a mathematical expression of the model and comparing the expressed pressure value with the real pressure value as measured by a sensor.

6. 发明授权

US09632009B2 Method for functionally testing turbomachines, and test device therefor 有权
公开(公告)号：US09632009B2
公开(公告)日：2017-04-25
申请号：US14001424
申请日：2012-02-22
申请人： Hartmut Berger
发明人： Hartmut Berger
IPC分类号： G01M15/04 , G01M15/14 , G01M15/09
CPC分类号： G01M15/14 , G01M15/09
摘要： Functional faults of a turbo-machine are determined by operating the turbo-machine as a test object in a test stand using one or more gas pressure pulses which are not superimposed onto a substantially constant gas flow and detecting dynamic behavior of the test object using measuring devices, a measuring and control system and an evaluation unit.

7. 发明申请

US20160305358A1 FUEL RAIL PRESSURE SENSOR DIAGNOSTIC TECHNIQUES 审中-公开
公开(公告)号：US20160305358A1
公开(公告)日：2016-10-20
申请号：US15193897
申请日：2016-06-27
申请人： Robert Stack , Jonathan D. Stoffer
发明人： Robert Stack , Jonathan D. Stoffer
IPC分类号： F02D41/22 , F02D41/26 , G01M15/09 , F02D41/12
CPC分类号： F02D41/222 , F02D41/123 , F02D41/26 , F02D2041/223 , F02D2041/228 , F02D2200/0602 , F02M65/003 , G01M15/09
摘要： A first computer-implemented diagnostic method can run in response to an imminent deceleration fuel cutoff (DFCO) event. A second computer-implemented diagnostic method can run on engine shutdown. Both diagnostic methods involve controlling fuel injectors and a fuel pump to make the fuel rail pressure change from a desired minimum to a desired maximum. Measurements from the fuel rail pressure sensor at these endpoints can then be used to detect a fault of the fuel rail pressure sensor. One or both diagnostic methods can be implemented.

8. 发明申请

US20160266000A1 AUTOMOBILE TURBOCHARGER EXAMINATION DEVICE 审中-公开
标题翻译：汽车涡轮增压器检测装置
公开(公告)号：US20160266000A1
公开(公告)日：2016-09-15
申请号：US14645861
申请日：2015-03-12
申请人： Ying-Chieh Liao , Yu-Kuo Liao
发明人： Ying-Chieh Liao , Yu-Kuo Liao
IPC分类号： G01M3/02
CPC分类号： G01M3/025 , G01M3/2815 , G01M15/09
摘要： An automobile turbocharger examination device is provided. A connection tube set connects an outlet tube of a turbocharger and an inlet tube of an engine to define a detection channel which includes a hard tube portion and a flexible tube portion which is provided for being connected among the hard tube portion, the outlet tube and the inlet tube. The examination device is for being connected between the hard and flexible tube portions. A first connection end of a connection tubular body includes at least one connection tube. One of the at least one connection tube of the first connection end is for being communicably connected with the flexible tube portion, and a second connection end of the connection tubular body is for being communicably connected with the hard tube portion. A pressure-detecting channel is for detecting pressure.
摘要翻译：提供汽车涡轮增压器检查装置。连接管组连接涡轮增压器的出口管和发动机的入口管，以限定检测通道，该检测通道包括硬管部分和柔性管部分，柔性管部分设置成连接在硬管部分，出口管和入口管。检查装置用于连接在硬和柔性管部分之间。连接管体的第一连接端包括至少一个连接管。第一连接端的至少一个连接管中的一个用于与柔性管部分可通信地连接，并且连接管状体的第二连接端用于与硬管部分可通信地连接。压力检测通道用于检测压力。

9. 发明授权

US09291524B2 Operation data collection device for construction machines 有权
标题翻译：施工机械操作数据采集装置
公开(公告)号：US09291524B2
公开(公告)日：2016-03-22
申请号：US14359307
申请日：2012-11-20
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Junsuke Fujiwara , Hideaki Suzuki
IPC分类号： G01M17/00 , G01M15/09 , E02F9/22 , E02F9/26 , G07C5/00
CPC分类号： G01M15/09 , E02F9/226 , E02F9/2285 , E02F9/2292 , E02F9/2296 , E02F9/267 , G07C5/008
摘要： Provided is an operation data collection device for construction machines that is capable of efficiently collecting operation data indicative of impending failure of a construction machine by reducing the amount of information to be collected and stored without degrading the quality of information used for maintenance. The device receives operation data containing values measured by a plurality of sensors, a value indicating the operating status and an operation data storage section. The device includes a normal reference value storage section that stores a normal reference value for each of the sensors generating the operation data, a deviation calculation section that calculates the deviation of each of the sensors from the normal reference value, and a stored sensor item extraction section that extracts sensor items of operation data to be stored in the operation data storage section in accordance with the calculated deviation of each sensor.
摘要翻译：提供一种用于施工机械的操作数据收集装置，其能够通过减少要收集和存储的信息量而有效地收集指示施工机械即将发生的故障的操作数据，而不会降低用于维护的信息的质量。该装置接收包含由多个传感器测量的值，指示操作状态的值和操作数据存储部分的操作数据。该装置包括：正常参考值存储部分，其存储产生操作数据的每个传感器的正常参考值;偏差计算部分，其计算每个传感器与正常参考值的偏差;以及存储的传感器项目提取根据计算出的每个传感器的偏差，提取要存储在操作数据存储部中的操作数据的传感器项。

10. 发明授权

US09176022B2 System and method for diagnosing flow through a purge valve based on a fuel system pressure sensor 有权
标题翻译：用于诊断通过基于燃料系统压力传感器的吹扫阀的流量的系统和方法
公开(公告)号：US09176022B2
公开(公告)日：2015-11-03
申请号：US13832766
申请日：2013-03-15
申请人： GM Global Technology Operations LLC
发明人： Robert Jackson
IPC分类号： G01M15/09
CPC分类号： G01M15/09
摘要： A system according to the principles of the present disclosure includes a pressure sensor, a pressure variation module, and a purge flow diagnostic module. The pressure sensor generates a pressure signal indicating a pressure within a fuel system of an engine. The pressure variation module determines an amount of variation in the pressure signal over a period. The purge flow diagnostic module diagnoses a fault associated with flow through a purge valve of the fuel system when the pressure variation amount is less than a threshold.
摘要翻译：根据本公开的原理的系统包括压力传感器，压力变化模块和清洗流量诊断模块。压力传感器产生指示发动机的燃料系统内的压力的压力信号。压力变化模块确定一段时间内压力信号的变化量。当压力变化量小于阈值时，净化流量诊断模块诊断与通过燃料系统的净化阀的流量相关联的故障。

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