Patent · US Active

Control method and control system for continuously variable valve lift mechanism and vehicle

US11761360B2 · kind B2 · utility

0Cited by

0References

3Claims

0Family size

Assignee

GREAT WALL MOTOR COMPANY LIMITED · CN

Inventors

Tao Liu · Longbeilingcun, CN
Fabao Yang · Baoding, CN
Liming Xu · College Park, US
Ji Yin · Baoding, CN
Jiajia Hu · Baoding, CN
Luping Liu · Baoding, CN
Song Zhang · 安丰镇, CN
Yanlong Fang · Baoding, CN

Key dates

Filing date	Jun 7, 2018
Grant date	Sep 19, 2023
Priority date	—
Expiry date	Jul 18, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.