- 专利标题: SYSTEM AND METHOD FOR CONTROLLING VALVE TIMING OF CONTINUOUS VARIABLE VALVE DURATION ENGINE
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申请号: US15840079申请日: 2017-12-13
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公开(公告)号: US20180100454A1公开(公告)日: 2018-04-12
- 发明人: In Sang RYU , Kyoung Pyo HA , You Sang SON , Kiyoung KWON
- 申请人: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION
- 申请人地址: KR Seoul KR Seoul
- 专利权人: HYUNDAI MOTOR COMPANY,KIA MOTORS CORPORATION
- 当前专利权人: HYUNDAI MOTOR COMPANY,KIA MOTORS CORPORATION
- 当前专利权人地址: KR Seoul KR Seoul
- 优先权: KR10-2015-0175141 20151209; KR10-2017-0154705 20171120
- 主分类号: F02D41/00
- IPC分类号: F02D41/00 ; F02D13/02
摘要:
A method for controlling intake and exhaust valves of an engine includes: controlling, by an intake continuous variable valve timing (CVVT) device, opening and closing timings of the intake valve; controlling, by an exhaust CVVT device, opening and closing timing of the exhaust valve; determining, by a controller, first to fifth control regions based on engine load and speeds, and a target opening duration of the intake valve and target opening or target closing timings of the intake valve; modifying, by an intake continuous variable valve duration (CVVD) device, current opening and closing timings of the intake valve based on the target opening duration; and advancing or retarding, by the intake CVVD device, the current opening timing of the intake valve while simultaneously retarding or advancing the current closing timing of the intake valve by a predetermined value based on the target opening duration of the intake valve.