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1. 发明授权

US07975536B2 Method to detect the presence of a liquid-cooled engine supplemental heater 失效
标题翻译：检测液冷发动机辅助加热器的存在方法
公开(公告)号：US07975536B2
公开(公告)日：2011-07-12
申请号：US12145112
申请日：2008-06-24
申请人： Eric Bommer , Kenneth M. Simpson , Michael E. List , Warren Huang
发明人： Eric Bommer , Kenneth M. Simpson , Michael E. List , Warren Huang
IPC分类号： G01M15/04
CPC分类号： F02D41/222 , F02D41/062 , F02D2200/0414 , F02N19/10 , Y02T10/40
摘要： A method for detecting an engine block heater includes block heater detection logic and a data table containing calibration thresholds. The method determines a time-series of delta (Δ) engine coolant temperatures (ECT), which represent the respective differences between a start-up ECT and a plurality of operating ECT values measured thereafter. The method integrates the time-series to obtain a Δ ECT integral. The method also maintains an integrated engine speed parameter accumulated over the course of the detection period. Throughout the detection period, the method retrieves a threshold value from the table based on the integrated engine speed (Y-axis) versus an elapsed time (X-axis) since the detection period began. When the calculated Δ ECT integral value exceeds the retrieved threshold, the method determines that the block heater was operated, which can thereafter be used to suppress sensor rationality testing or reporting of results thereof.
摘要翻译：用于检测发动机缸体加热器的方法包括块加热器检测逻辑和包含校准阈值的数据表。该方法确定发动机冷却剂温度（ECT）的时间序列，其代表启动ECT和其后测量的多个操作ECT值之间的相应差异。该方法整合了时间序列获得＆Dgr; ECT积分。该方法还保持在检测周期过程中累积的集成发动机速度参数。在整个检测期间，该方法从检测周期开始以来，基于集成发动机转速（Y轴）与经过时间（X轴）从表中检索阈值。当计算的＆Dgr ECT积分值超过检索到的阈值，该方法确定块加热器运行，此后可以用于抑制传感器合理性测试或报告其结果。

2. 发明申请

US20090319162A1 METHOD TO DETECT THE PRESENCE OF A LIQUID-COOLED ENGINE SUPPLEMENTAL HEATER 失效
标题翻译：检测液体冷却发动机辅助加热器的方法
公开(公告)号：US20090319162A1
公开(公告)日：2009-12-24
申请号：US12145112
申请日：2008-06-24
申请人： Eric Bommer , Kenneth M. Simpson , Michael E. List , Warren Huang
发明人： Eric Bommer , Kenneth M. Simpson , Michael E. List , Warren Huang
IPC分类号： F02D45/00
CPC分类号： F02D41/222 , F02D41/062 , F02D2200/0414 , F02N19/10 , Y02T10/40
摘要： A method for detecting an engine block heater includes block heater detection logic and a data table containing calibration thresholds. The method determines a time-series of delta (Δ) engine coolant temperatures (ECT), which represent the respective differences between a start-up ECT and a plurality of operating ECT values measured thereafter. The method integrates the time-series to obtain a Δ ECT integral. The method also maintains an integrated engine speed parameter accumulated over the course of the detection period. Throughout the detection period, the method retrieves a threshold value from the table based on the integrated engine speed (Y-axis) versus an elapsed time (X-axis) since the detection period began. When the calculated Δ ECT integral value exceeds the retrieved threshold, the method determines that the block heater was operated, which can thereafter be used to suppress sensor rationality testing or reporting of results thereof.
摘要翻译：用于检测发动机缸体加热器的方法包括块加热器检测逻辑和包含校准阈值的数据表。该方法确定Delta（Delta）发动机冷却剂温度（ECT）的时间序列，其表示起始ECT和其后测量的多个操作ECT值之间的相应差异。该方法集成了时间序列，以获得Delta ECT积分。该方法还保持在检测周期过程中累积的集成发动机速度参数。在整个检测期间，该方法从检测周期开始以来，基于集成发动机转速（Y轴）与经过时间（X轴）从表中检索阈值。当计算的Delta ECT积分值超过检索到的阈值时，该方法确定块加热器被操作，其后可以用于抑制传感器合理性测试或其结果的报告。

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