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公开(公告)号：US07178494B2
公开(公告)日：2007-02-20
申请号：US11248251
申请日：2005-10-13
CPC分类号： F02D13/0219 , F01L1/344 , F01L2800/00 , F01L2800/14 , F01L2820/041 , F01L2820/042 , F02D41/009 , F02D41/0097 , F02D2041/001 , Y02T10/18
摘要： An ECU calculates an engine speed for calculating a camshaft phase based on a time period Tθ in which a crankshaft rotates a sampling angle θ. The camshaft phase is derived from a time difference between output timing of a cam angle signal and output timing of a crank angle signal based on the engine speed. According as the engine speed is lower, the sampling angle θ becomes small, so that the engine speed and the camshaft phase are precisely calculated.
摘要翻译： ECU基于曲轴旋转采样角度θ的时间段Tta来计算用于计算凸轮轴相位的发动机转速。 凸轮轴相位是根据发动机转速从凸轮角度信号的输出定时和曲柄角信号的输出定时之间的时间差导出的。 根据发动机转速较低，采样角度θ变小，从而精确计算发动机转速和凸轮轴相位。
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公开(公告)号：US07287500B2
公开(公告)日：2007-10-30
申请号：US11273326
申请日：2005-11-15
IPC分类号： F02D41/06
CPC分类号： F02D13/0226 , F02D41/0002 , F02D41/062 , F02D2013/0292 , F02D2041/001 , F02N11/08 , Y02T10/18 , Y02T10/42
摘要： At an intake timing of an initial combustion cylinder, an actual intake valve timing is adjusted to a target intake valve timing corresponding to a target intake air flow rate of the initial combustion cylinder. At intake timing of the other cylinders which contributes to increment of the engine speed after the initial combustion, the actual intake valve timing is adjusted to a target valve timing corresponding to a target intake air flow rate of the other cylinders. Thereby, the intake air flow rate of each cylinder is accurately controlled, so that the increment of the engine speed is restricted within a range in which a startability is not deteriorated and a vehicle vibration and an over shoot of the engine speed is appropriately restricted.
摘要翻译： 在初始燃烧气缸的进气正时，将实际进气门正时调整为与初始燃烧气缸的目标进气流量对应的目标进气门正时。 在有助于初始燃烧后的发动机转速增加的其他气缸的进气时刻，将实际进气门正时调整为与其他气缸的目标进气流量对应的目标气门正时。 因此，精确地控制各气缸的进气流量，从而将发动机转速的增加限制在不劣化起动性的范围内，适当地限制发动机转速的车辆振动和过冲。
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公开(公告)号：US20060042579A1
公开(公告)日：2006-03-02
申请号：US11213900
申请日：2005-08-30
IPC分类号： F01L1/34
CPC分类号： F01L1/352 , F01L1/022 , F01L1/024 , F01L1/34 , F01L2820/032 , F01L2820/041
摘要： A variable valve timing controller adjusts valve timing of an intake valve and/or an exhaust valve by varying a motor speed relative to a camshaft. When an engine is running under a predetermined condition, an actual valve timing is calculated based on a cam angle signal and crank angle signal every when the cam angle signal is inputted. A final valve timing is calculated by adding a valve timing variation amount to the actual valve timing at the time the cam angle signal is outputted. The valve timing amount is periodically calculated based on a difference between a motor speed and a rotational speed of the intake camshaft. When the engine is running under another condition, only actual valve timing at the time the cam angle signal is outputted is calculated.
摘要翻译： 可变气门正时控制器通过改变相对于凸轮轴的电动机转速来调节进气门和/或排气门的气门正时。 当发动机在预定条件下运行时，每当输入凸轮角信号时，基于凸轮角信号和曲柄角信号计算实际气门正时。 通过在输出凸轮角信号时将气门正时变化量与实际气门正时相加来计算最终气门正时。 基于电动机速度和进气凸轮轴的转速之间的差异周期性地计算气门正时量。 当发动机在另一条件下运行时，仅计算在输出凸轮角信号时的实际气门正时。
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公开(公告)号：US07308877B2
公开(公告)日：2007-12-18
申请号：US11213900
申请日：2005-08-30
IPC分类号： F01L1/34
CPC分类号： F01L1/352 , F01L1/022 , F01L1/024 , F01L1/34 , F01L2820/032 , F01L2820/041
摘要： A variable valve timing controller adjusts valve timing of an intake valve and/or an exhaust valve by varying a motor speed relative to a camshaft. When an engine is running under a predetermined condition, an actual valve timing is calculated based on a cam angle signal and crank angle signal every when the cam angle signal is inputted. A final valve timing is calculated by adding a valve timing variation amount to the actual valve timing at the time the cam angle signal is outputted. The valve timing amount is periodically calculated based on a difference between a motor speed and a rotational speed of the intake camshaft. When the engine is running under another condition, only actual valve timing at the time the cam angle signal is outputted is calculated.
摘要翻译： 可变气门正时控制器通过改变相对于凸轮轴的电动机转速来调节进气门和/或排气门的气门正时。 当发动机在预定条件下运行时，每当输入凸轮角信号时，基于凸轮角信号和曲柄角信号计算实际气门正时。 通过在输出凸轮角信号时将气门正时变化量与实际气门正时相加来计算最终气门正时。 基于电动机速度和进气凸轮轴的转速之间的差异周期性地计算气门正时量。 当发动机在另一条件下运行时，仅计算在输出凸轮角信号时的实际气门正时。
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公开(公告)号：US20070251481A1
公开(公告)日：2007-11-01
申请号：US11822486
申请日：2007-07-06
IPC分类号： F02N17/00
CPC分类号： F02D13/0226 , F02D41/0002 , F02D41/062 , F02D2013/0292 , F02D2041/001 , F02N11/08 , Y02T10/18 , Y02T10/42
摘要： At an intake timing of an initial combustion cylinder, an actual intake valve timing is adjusted to a target intake valve timing corresponding to a target intake air flow rate of the initial combustion cylinder. At intake timing of the other cylinders which contributes to increment of the engine speed after the initial combustion, the actual intake valve timing is adjusted to a target valve timing corresponding to a target intake air flow rate of the other cylinders. Thereby, the intake air flow rate of each cylinder is accurately controlled, so that the increment of the engine speed is restricted within a range in which a startability is not deteriorated and a vehicle vibration and an over shoot of the engine speed is appropriately restricted.
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公开(公告)号：US07243627B2
公开(公告)日：2007-07-17
申请号：US11213898
申请日：2005-08-30
IPC分类号： F01L1/34
CPC分类号： F01L1/352 , F01L1/022 , F01L1/024 , F01L2800/00 , F01L2800/03 , F01L2820/032 , F01L2820/041
摘要： An internal combustion engine has a variable valve timing apparatus including a driving motor between a crankshaft and a camshaft. The driving motor rotates synchronously with the camshaft when the valve timing apparatus is not in operation. A motor rotation sensor produces a motor rotation signal. When the engine rotation speed is below a reference speed, the driving motor is not energized. Under this condition, the rotation speed and the rotation direction of the engine are calculated based on the motor rotation signal in place of a crank rotation signal produced by a crank angle sensor. Further, the rotation stop position of the engine is calculated based on the motor rotation signal when the engine is stopped.
摘要翻译： 内燃机具有可变气门正时装置，其包括在曲轴和凸轮轴之间的驱动电动机。 当气门正时装置不工作时，驱动电机与凸轮轴同步旋转。 电动机旋转传感器产生电动机旋转信号。 当发动机转速低于参考速度时，驱动电机不通电。 在这种条件下，代替由曲柄角传感器产生的曲柄旋转信号，基于马达旋转信号来计算发动机的转速和旋转方向。 此外，当发动机停止时，基于电动机旋转信号计算发动机的旋转停止位置。
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公开(公告)号：US20060102127A1
公开(公告)日：2006-05-18
申请号：US11273326
申请日：2005-11-15
IPC分类号： F02D41/06
CPC分类号： F02D13/0226 , F02D41/0002 , F02D41/062 , F02D2013/0292 , F02D2041/001 , F02N11/08 , Y02T10/18 , Y02T10/42
摘要： At an intake timing of an initial combustion cylinder, an actual intake valve timing is adjusted to a target intake valve timing corresponding to a target intake air flow rate of the initial combustion cylinder. At intake timing of the other cylinders which contributes to increment of the engine speed after the initial combustion, the actual intake valve timing is adjusted to a target valve timing corresponding to a target intake air flow rate of the other cylinders. Thereby, the intake air flow rate of each cylinder is accurately controlled, so that the increment of the engine speed is restricted within a range in which a startability is not deteriorated and a vehicle vibration and an over shoot of the engine speed is appropriately restricted.
摘要翻译： 在初始燃烧气缸的进气正时，将实际进气门正时调整为与初始燃烧气缸的目标进气流量对应的目标进气门正时。 在有助于初始燃烧后的发动机转速增加的其他气缸的进气时刻，将实际进气门正时调整为与其他气缸的目标进气流量对应的目标气门正时。 因此，精确地控制各气缸的进气流量，从而将发动机转速的增加限制在不劣化起动性的范围内，适当地限制发动机转速的车辆振动和过冲。
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公开(公告)号：US20060081203A1
公开(公告)日：2006-04-20
申请号：US11248251
申请日：2005-10-13
CPC分类号： F02D13/0219 , F01L1/344 , F01L2800/00 , F01L2800/14 , F01L2820/041 , F01L2820/042 , F02D41/009 , F02D41/0097 , F02D2041/001 , Y02T10/18
摘要： An ECU calculates an engine speed for calculating a camshaft phase based on a time period Tθ in which a crankshaft rotates a sampling angle θ. The camshaft phase is derived from a time difference between output timing of a cam angle signal and output timing of a crank angle signal based on the engine speed. According as the engine speed is lower, the sampling angle θ becomes small, so that the engine speed and the camshaft phase are precisely calculated.
摘要翻译： ECU基于曲轴旋转采样角度θ的时间段Tta来计算用于计算凸轮轴相位的发动机转速。 凸轮轴相位是根据发动机转速从凸轮角度信号的输出定时和曲柄角信号的输出定时之间的时间差导出的。 根据发动机转速较低，采样角度θ变小，从而精确计算发动机转速和凸轮轴相位。
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公开(公告)号：US20060042578A1
公开(公告)日：2006-03-02
申请号：US11213898
申请日：2005-08-30
IPC分类号： F01L1/34
CPC分类号： F01L1/352 , F01L1/022 , F01L1/024 , F01L2800/00 , F01L2800/03 , F01L2820/032 , F01L2820/041
摘要： An internal combustion engine has a variable valve timing apparatus including a driving motor between a crankshaft and a camshaft. The driving motor rotates synchronously with the camshaft when the valve timing apparatus is not in operation. A motor rotation sensor produces a motor rotation signal. When the engine rotation speed is below a reference speed, the driving motor is not energized. Under this condition, the rotation speed and the rotation direction of the engine are calculated based on the motor rotation signal in place of a crank rotation signal produced by a crank angle sensor. Further, the rotation stop position of the engine is calculated based on the motor rotation signal when the engine is stopped.
摘要翻译： 内燃机具有可变气门正时装置，其包括在曲轴和凸轮轴之间的驱动电动机。 当气门正时装置不工作时，驱动电机与凸轮轴同步旋转。 电动机旋转传感器产生电动机旋转信号。 当发动机转速低于参考速度时，驱动电机不通电。 在这种条件下，代替由曲柄角传感器产生的曲柄旋转信号，基于马达旋转信号来计算发动机的转速和旋转方向。 此外，当发动机停止时，基于电动机旋转信号计算发动机的旋转停止位置。
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公开(公告)号：US08181612B2
公开(公告)日：2012-05-22
申请号：US12280068
申请日：2007-01-31
IPC分类号： F01L1/34
摘要： An ECU executes a program including the steps of: detecting engine speed NE (S100); and stopping power supply to an electric motor of an intake VVT mechanism (S104), if engine speed NE is equal to or lower than a threshold value NE (0) (YES at S102).
摘要翻译： ECU执行包括以下步骤的程序：检测发动机转速NE（S100）; 如果发动机速度NE等于或低于阈值NE（0），则停止对进气VVT机构的电动机的供电（S104）（S102为是）。
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