公开(公告)号：US07819098B2

公开(公告)日：2010-10-26

申请号：US11966090

申请日：2007-12-28

申请人： Byong Young Choi

发明人： Byong Young Choi

IPC分类号： F01L1/34

CPC分类号： F01L1/344 ,  F02D13/0219 ,  F02D41/009 ,  Y02T10/18

摘要： A variable valve timing device delivers rotation of a crankshaft to a first camshaft, and to a second camshaft through the first camshaft. First and second variable valve timing units change phases of the first and second camshafts, respectively. A crankshaft sensor senses angle changes of the crankshaft. A camshaft sensor senses angle changes of the second camshaft. A control portion controls the phase of the second camshaft by controlling the second variable valve timing unit, or controls the phases of both camshafts by controlling the first variable valve timing unit, according to signals from the crankshaft sensor and the camshaft sensor. Also, a control method for such a device. One of several possible modes is selected. Target phases of the camshafts corresponding to an operation of an engine are determined. Phases of the first camshaft and/or the second camshaft are controlled according to the selected mode.

摘要翻译： 可变气门正时装置将曲轴的旋转传递到第一凸轮轴，并通过第一凸轮轴传递到第二凸轮轴。 第一和第二可变气门正时单元分别改变第一和第二凸轮轴的相位。 曲轴传感器感测曲轴的角度变化。 凸轮轴传感器感测第二凸轮轴的角度变化。 控制部通过控制第二可变气门正时单元来控制第二凸轮轴的相位，或者根据来自曲轴传感器和凸轮轴传感器的信号，通过控制第一可变气门正时单元来控制两个凸轮轴的相位。 另外，这种装置的控制方法。 选择几种可能模式之一。 确定对应于发动机的操作的凸轮轴的目标相位。 根据所选择的模式来控制第一凸轮轴和/或第二凸轮轴的相位。

公开(公告)号：US08176891B2

公开(公告)日：2012-05-15

申请号：US12426056

申请日：2009-04-17

申请人： Byong Young Choi

发明人： Byong Young Choi

IPC分类号： F02D13/06 ,  F02D17/02

CPC分类号： F02D17/02 ,  Y10T74/2173

摘要： A multi-cylinder engine with a plurality of cylinders may include at least one variable cylinder that performs a power stroke or is deactivated, normal cylinders that perform power strokes at equal rotation intervals, and a control portion that activates or deactivates the at least one variable cylinder according to a predetermined load condition, wherein deactivation position of the at least one variable cylinder is determined based on rotation angle of a crankshaft.

摘要翻译： 具有多个气缸的多气缸发动机可以包括执行动力冲程或停用的至少一个可变气缸，以相等的旋转间隔执行功率冲程的正常气缸以及激活或停用至少一个变量的控制部分 根据预定的负载条件来确定所述至少一个可变气缸的停用位置，其基于曲轴的旋转角度来确定。

公开(公告)号：US20090126663A1

公开(公告)日：2009-05-21

申请号：US11966090

申请日：2007-12-28

申请人： Byong Young Choi

发明人： Byong Young Choi

IPC分类号： F01L1/344 ,  F02D13/02

CPC分类号： F01L1/344 ,  F02D13/0219 ,  F02D41/009 ,  Y02T10/18

摘要： A variable valve timing device delivers rotation of a crankshaft to a first camshaft, and to a second camshaft through the first camshaft. First and second variable valve timing units change phases of the first and second camshafts, respectively. A crankshaft sensor senses angle changes of the crankshaft. A camshaft sensor senses angle changes of the second camshaft. A control portion controls the phase of the second camshaft by controlling the second variable valve timing unit, or controls the phases of both camshafts by controlling the first variable valve timing unit, according to signals from the crankshaft sensor and the camshaft sensor. Also, a control method for such a device. One of several possible modes is selected. Target phases of the camshafts corresponding to an operation of an engine are determined. Phases of the first camshaft and/or the second camshaft are controlled according to the selected mode.

摘要翻译： 可变气门正时装置将曲轴的旋转传递到第一凸轮轴，并通过第一凸轮轴传递到第二凸轮轴。 第一和第二可变气门正时单元分别改变第一和第二凸轮轴的相位。 曲轴传感器感测曲轴的角度变化。 凸轮轴传感器感测第二凸轮轴的角度变化。 控制部通过控制第二可变气门正时单元来控制第二凸轮轴的相位，或者根据来自曲轴传感器和凸轮轴传感器的信号，通过控制第一可变气门正时单元来控制两个凸轮轴的相位。 另外，这种装置的控制方法。 选择几种可能模式之一。 确定对应于发动机的操作的凸轮轴的目标相位。 根据所选择的模式来控制第一凸轮轴和/或第二凸轮轴的相位。