公开(公告)号：US20210131359A1

公开(公告)日：2021-05-06

申请号：US16620611

申请日：2018-06-07

申请人： GREAT WALL MOTOR COMPANY LIMITED

发明人： Tao LIU ,  Liming XU ,  Fabao YANG ,  Ji YIN ,  Jiajia HU

IPC分类号： F02D13/04 ,  F02D41/24 ,  F02D41/00 ,  F02D41/10 ,  F02D41/12 ,  F02D41/06 ,  F01L13/00 ,  F01L1/22 ,  F02D41/04

摘要： A 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.

公开(公告)号：US20200095909A1

公开(公告)日：2020-03-26

申请号：US16620596

申请日：2018-06-07

申请人： GREAT WALL MOTOR COMPANY LIMITED

发明人： Tao LIU ,  Fabao YANG ,  Liming XU ,  Ji YIN ,  Jiajia HU ,  Luping LIU ,  Song ZHANG ,  Yanlong FANG

IPC分类号： F01L13/00

摘要： A control method for a continuously variable valve lift mechanism includes: controlling a continuously variable valve lift mechanism to enter a limp mode when the continuously variable valve lift mechanism fails and disables an automatic valve lift changing function; driving and forcing the continuously variable valve lift mechanism to move to a maximum lift position; and triggering a self locking function to self lock the continuously variable valve lift mechanism at the maximum lift position when the continuously variable valve lift mechanism reaches the maximum lift position. A control system for a continuously variable valve lift mechanism, and a vehicle are also provided.

公开(公告)号：US20200165941A1

公开(公告)日：2020-05-28

申请号：US16620613

申请日：2018-06-07

申请人： GREAT WALL MOTOR COMPANY LIMITED

发明人： Tao LIU ,  Fabao YANG ,  Ji YIN ,  Jiajia HU ,  Liming XU ,  Song ZHANG ,  Luping LIU ,  Yanlong FANG ,  Lei WANG

IPC分类号： F01L1/053 ,  F01M9/10

摘要： A valve mechanism includes a valve, a camshaft, a fixed support, an intermediate swing arm and a supporting base. The fixed support is provided with a connecting-portion via hole running from top to bottom, two oil passages are defined in a connecting portion, and each of the oil passages is connected with the connecting-portion via hole and a corresponding intermediate swing arm shaft hole. The supporting base defines first and second oil feeding passages therein, the first supporting-base oil feeding passage is communicated with the connecting-portion via hole, and an upper end of the second supporting-base oil feeding passage extends to a base-body camshaft supporting portion of the supporting base. An engine and a vehicle are also provided.