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公开(公告)号：EP3636887A1
公开(公告)日：2020-04-15
申请号：EP18812869.8
申请日：2018-06-07
发明人： LIU, Tao , YIN, Ji , LIU, Luping , XU, Liming , HU, Jiajia , YANG, Fabao , ZHANG, Song , FANG, Yanlong , WANG, Lei
IPC分类号： F01L13/00
摘要： A valve mechanism, an engine and a vehicle are disclosed. The valve mechanism (1000) includes a valve (103), a camshaft (101), an intermediate swing arm (106), a lift regulating mechanism and a roller assembly (112). The intermediate swing arm (106) is located between a cam (102) and the valve (103), and the cam (102) drives the valve (103) to move by means of the intermediate swing arm (106). The lift regulating mechanism includes an eccentric wheel (113), the roller assembly (112) is supported by the cam (102), the eccentric wheel (113) and an intermediate swing arm roller (115), and the lift regulating mechanism is configured to variably regulate a lift of the valve (103) continuously A peripheral surface of the eccentric wheel (113) includes a lift regulating section (1131) having a start point and an end point, a maximum lift point of the lift regulating section (1131) is located between the start point and the end point, and the lift regulating section (1131) is divided into a first section (116) which is convex and a second section (117) having at least a part thereof concave.
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公开(公告)号：EP3636888A1
公开(公告)日：2020-04-15
申请号：EP18813107.2
申请日：2018-06-07
发明人： LIU, Tao , YANG, Fabao , YIN, Ji , HU, Jiajia , XU, Liming , ZHANG, Song , LIU, Luping , FANG, Yanlong , WANG, Lei
摘要： The valve mechanism (1000) includes a valve (103), a camshaft (101), a fixed support (108), an intermediate swing arm (106) and a supporting base (107). The fixed support (108) is provided with a connecting-portion via hole (204) running from top to bottom, two oil passages (205) are defined in a connecting portion (201), and each of the oil passages (205) is connected with the connecting-portion via hole (204) and a corresponding intermediate swing arm shaft hole (203). The supporting base (107) defines first and second oil feeding passages (303, 304) therein, the first supporting-base oil feeding passage (303) is communicated with the connecting-portion via hole (204), and an upper end of the second supporting-base oil feeding passage (304) extends to a base-body camshaft supporting portion (302) of the supporting base (107). An engine and a vehicle are also provided. During practical use, the valve mechanism has more compact structure, ensure pressure of the lubricating oil, and meets cooling and lubricating requirements of the parts.
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公开(公告)号：EP3636900A1
公开(公告)日：2020-04-15
申请号：EP18813697.2
申请日：2018-06-07
发明人： LIU, Tao , XU, Liming , YANG, Fabao , YIN, Ji , HU, Jiajia
IPC分类号： F02D13/02
摘要： A control strategy for a continuously variable valve lift mechanism, an apparatus and a nonvolatile computer storage medium are disclosed. The control strategy includes: after an engine is energized, the continuously variable valve lift mechanism self learning to determine a current position; if the self learning is successful, the continuously variable valve lift mechanism being located at a maximum lift position, preparing for starting the engine, and determining a regulating mode based on a starting temperature, wherein at the time of normal temperature start, regulation is performed from the maximum lift position to a minimum lift position, and at the time of low temperature start, regulation is performed from the maximum lift position to a position where the two valves for the same cylinder have a maximum lift difference; if the self learning fails, entering a preliminary start mode; entering a CVVL control mode based on an operation condition of the engine; and powering off the engine.
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公开(公告)号：EP3636886A1
公开(公告)日：2020-04-15
申请号：EP18813824.2
申请日：2018-06-07
发明人： LIU, Tao , YANG, Fabao , XU, Liming , YIN, Ji , HU, Jiajia , LIU, Luping , ZHANG, Song , FANG, Yanlong
摘要： A control method for a continuously variable valve lift mechanism includes: controlling a continuously variable valve lift mechanism (100) to enter a limp mode when the continuously variable valve lift mechanism (100) fails and disables an automatic valve lift changing function; driving and forcing the continuously variable valve lift mechanism (100) to move to a maximum lift position; and triggering a self locking function to self lock the continuously variable valve lift mechanism (100) at the maximum lift position when the continuously variable valve lift mechanism (100) reaches the maximum lift position. A control system for a continuously variable valve lift mechanism, a vehicle, an apparatus and a nonvolatile computer storage medium are also provided. With the control method for the continuously variable valve lift mechanism, a vehicle may be guaranteed to be started and travel smoothly when the continuously variable valve lift mechanism fails and disables the automatic valve lift changing function.
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