Patents by Inventor Fabao YANG
Fabao YANG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11761360Abstract: 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.Type: GrantFiled: June 7, 2018Date of Patent: September 19, 2023Assignee: GREAT WALL MOTOR COMPANY LIMITEDInventors: Tao Liu, Fabao Yang, Liming Xu, Ji Yin, Jiajia Hu, Luping Liu, Song Zhang, Yanlong Fang
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Patent number: 11448105Abstract: A valve mechanism includes a valve, a camshaft, an intermediate swing arm located between a cam and the valve, a lift regulating mechanism and a roller assembly. The cam drives the valve to move by means of the intermediate swing arm. The roller assembly is supported by the cam, an eccentric wheel of the lift regulating mechanism and an intermediate swing arm roller. A peripheral surface of the eccentric wheel includes a lift regulating section having a start point and an end point, a maximum lift point of the lift regulating section is located between the start point and the end point, and the lift regulating section is divided into a first section which is convex and a second section having at least a part thereof concave.Type: GrantFiled: June 7, 2018Date of Patent: September 20, 2022Assignee: GREAT WALL MOTOR COMPANY LIMITEDInventors: Tao Liu, Ji Yin, Luping Liu, Liming Xu, Jiajia Hu, Fabao Yang, Song Zhang, Yanlong Fang, Lei Wang
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Patent number: 11053864Abstract: 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.Type: GrantFiled: June 7, 2018Date of Patent: July 6, 2021Assignee: GREAT WALL MOTOR COMPANY LIMITEDInventors: Tao Liu, Liming Xu, Fabao Yang, Ji Yin, Jiajia Hu
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Publication number: 20210131359Abstract: 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.Type: ApplicationFiled: June 7, 2018Publication date: May 6, 2021Applicant: GREAT WALL MOTOR COMPANY LIMITEDInventors: Tao LIU, Liming XU, Fabao YANG, Ji YIN, Jiajia HU
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Patent number: 10815837Abstract: 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.Type: GrantFiled: June 7, 2018Date of Patent: October 27, 2020Assignee: GREAT WALL MOTOR COMPANY LIMITEDInventors: Tao Liu, Fabao Yang, Ji Yin, Jiajia Hu, Liming Xu, Song Zhang, Luping Liu, Yanlong Fang, Lei Wang
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Publication number: 20200165941Abstract: 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.Type: ApplicationFiled: June 7, 2018Publication date: May 28, 2020Applicant: GREAT WALL MOTOR COMPANY LIMITEDInventors: Tao LIU, Fabao YANG, Ji YIN, Jiajia HU, Liming XU, Song ZHANG, Luping LIU, Yanlong FANG, Lei WANG
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Publication number: 20200141291Abstract: A valve mechanism includes a valve, a camshaft, an intermediate swing arm located between a cam and the valve, a lift regulating mechanism and a roller assembly. The cam drives the valve to move by means of the intermediate swing arm. The roller assembly is supported by the cam, an eccentric wheel of the lift regulating mechanism and an intermediate swing arm roller. A peripheral surface of the eccentric wheel includes a lift regulating section having a start point and an end point, a maximum lift point of the lift regulating section is located between the start point and the end point, and the lift regulating section is divided into a first section which is convex and a second section having at least a part thereof concave.Type: ApplicationFiled: June 7, 2018Publication date: May 7, 2020Applicant: GREAT WALL MOTOR COMPANY LIMITEDInventors: Tao LIU, Ji YIN, Luping LIU, Liming XU, Jiajia HU, Fabao YANG, Song ZHANG, Yanlong FANG, Lei WANG
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Publication number: 20200095909Abstract: 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.Type: ApplicationFiled: June 7, 2018Publication date: March 26, 2020Applicant: GREAT WALL MOTOR COMPANY LIMITEDInventors: Tao LIU, Fabao YANG, Liming XU, Ji YIN, Jiajia HU, Luping LIU, Song ZHANG, Yanlong FANG