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1.
公开(公告)号:US07197916B2
公开(公告)日:2007-04-03
申请号:US11097318
申请日:2005-04-04
IPC分类号: G01M15/00
CPC分类号: G01M15/11
摘要: A misfire detector detects a misfire in a cylinder based on a maximum value and the minimum value of the angular speed. A first crank angle range is defined in such a manner as to include a crank angle in which the angular speed is maximum during a power stroke. A second crank angle range is defined in such a manner as to include a crank angle in which the angular speed is minimum during the power stroke. The maximum value of the angular speed is calculated within the first crank angle range, and the minimum value of the angular speed is calculated within the second crank angle range. The calculated maximum and minimum values are brought close to actual values to enhance a reliability of the misfire detector.
摘要翻译: 基于最大值和角速度的最小值,失火探测器检测气缸中的失火。 第一曲柄角范围被限定为包括在动力冲程期间角速度最大的曲柄角。 第二曲柄角范围被限定为包括在动力冲程期间角速度最小的曲柄角。 在第一曲柄角范围内计算角速度的最大值,并且在第二曲柄角范围内计算角速度的最小值。 计算的最大值和最小值接近实际值,以提高失火探测器的可靠性。
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公开(公告)号:US20050217356A1
公开(公告)日:2005-10-06
申请号:US11097318
申请日:2005-04-04
CPC分类号: G01M15/11
摘要: A misfire detector detects a misfire in a cylinder based on a maximum value and the minimum value of the angular speed. A first crank angle range is defined in such a manner as to include a crank angle in which the angular speed is maximum during a power stroke. A second crank angle range is defined in such a manner as to include a crank angle in which the angular speed is minimum during the power stroke. The maximum value of the angular speed is calculated within the first crank angle range, and the minimum value of the angular speed is calculated within the second crank angle range. The calculated maximum and minimum values are brought close to actual values to enhance a reliability of the misfire detector.
摘要翻译: 基于最大值和角速度的最小值,失火探测器检测气缸中的失火。 第一曲柄角范围被限定为包括在动力冲程期间角速度最大的曲柄角。 第二曲柄角范围被限定为包括在动力冲程期间角速度最小的曲柄角。 在第一曲柄角范围内计算角速度的最大值,并且在第二曲柄角范围内计算角速度的最小值。 计算的最大值和最小值接近实际值,以提高失火探测器的可靠性。
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