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1. 发明授权

US6128948A Methodology for diagnosing engine cooling system warm-up behavior 有权
标题翻译：诊断发动机冷却系统预热行为的方法
公开(公告)号：US6128948A
公开(公告)日：2000-10-10
申请号：US249994
申请日：1999-02-16
申请人： Guojun Shi , James R. Yurgil , Randall L. Gallagher
发明人： Guojun Shi , James R. Yurgil , Randall L. Gallagher
IPC分类号： G01M15/04 , G01M15/00
CPC分类号： G01M15/048
摘要： A method for monitoring engine coolant warm-up behavior utilizing a model-based algorithm which provides a moving threshold for accumulated air or accumulated fuel entering into the engine. The algorithm allows for coolant temperature monitoring under a wide range of transient and steady state driving conditions while maintaining safeguards that prevent a false detection. The accumulated air (or fuel) delivered to the engine during the warm-up interval is used to represent the total heat generated by the engine during the warm-up interval. A time-varying moving calculated accumulated air threshold is therefore defined which can deliver accurate pass-fail decisions in conjunction with a predetermined target temperature.
摘要翻译：一种利用基于模型的算法来监测发动机冷却剂预热行为的方法，其提供进入发动机的累积空气或累积燃料的移动阈值。该算法允许在宽范围的瞬态和稳态驱动条件下进行冷却液温度监测，同时保持防止错误检测的保护措施。在预热间隔期间输送到发动机的累积空气（或燃料）用于表示在预热间隔期间发动机产生的总热量。因此定义了随时间变化的移动计算累积空气阈值，其可以结合预定目标温度提供精确的通过失败判定。

2. 发明授权

US06931865B1 Method and apparatus for determining coolant temperature rationally in a motor vehicle 有权
标题翻译：用于在机动车辆中合理确定冷却剂温度的方法和装置
公开(公告)号：US06931865B1
公开(公告)日：2005-08-23
申请号：US10781452
申请日：2004-02-18
申请人： John F. Van Gilder , William J. Morgan , Randall L. Gallagher
发明人： John F. Van Gilder , William J. Morgan , Randall L. Gallagher
IPC分类号： F01P11/16 , F02D41/22 , G01K15/00 , G01K13/00 , F01P9/00 , G01M17/00 , G01M19/00
CPC分类号： F01P11/16 , F01P2025/13 , F01P2031/00 , F02D41/222 , F02N19/10 , G01K15/00 , G01K2205/00 , Y02T10/40
摘要： Methods, systems and devices for identifying irrational results from an engine coolant temperature (ECT) sensor in a vehicle are described. The vehicle suitably includes a processor in communication with the ECT sensor and an intake air temperature (IAT) sensor. The method includes the steps of receiving an ECT reading from the ECT sensor and a IAT reading at the processor, evaluating a temperature difference between the ECT reading and the IAT reading to determine if irrationality is present, and providing a fault indication in response to the evaluating step. The evaluating step includes monitoring the IAT reading during operation of the vehicle to identify the presence of an engine block heater if the temperature difference exceeds a pre-determined threshold.
摘要翻译：描述用于识别车辆中的发动机冷却剂温度（ECT）传感器的不合理结果的方法，系统和装置。车辆适当地包括与ECT传感器和进气温度（IAT）传感器通信的处理器。该方法包括以下步骤：从ECT传感器接收ECT读数和在处理器处读取IAT，评估ECT读数和IAT读数之间的温度差，以确定是否存在不合理性，以及响应于评估步骤。评估步骤包括在车辆操作期间监视IAT读数，以便如果温度差超过预定阈值则识别发动机缸体加热器的存在。

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