基本信息:
- 专利标题： 基于湿度控制凸轮轴相位的方法
- 申请号：CN201810108990.9 申请日：2018-02-02
- 公开(公告)号：CN108412621A 公开(公告)日：2018-08-17
- 发明人： C·E·惠特尼 , D·N·海登 , N·皮苏 , S·P·莱瓦约基
- 申请人： 通用汽车环球科技运作有限责任公司
- 申请人地址： 美国密歇根州
- 专利权人： 通用汽车环球科技运作有限责任公司
- 当前专利权人： 通用汽车环球科技运作有限责任公司
- 当前专利权人地址： 美国密歇根州
- 代理机构： 广州嘉权专利商标事务所有限公司
- 代理人： 薛建强
- 优先权： 15/429219 2017.02.10 US
- 主分类号： F02D13/02
- IPC分类号： F02D13/02
A method of phasing the opening and closing of internal combustion engine intake and exhaust valves relative to the rotation of the crankshaft is based upon changes in engine speed, engine load and ambient relative humidity. During certain conditions of higher humidity, in order to maintain good combustion stability and thus overall engine operation, it is necessary to reduce intake and exhaust valve overlap by adjusting the phase of the intake and exhaust camshafts. This is achieved by utilizing a set of cam position reference values and constraints based upon engine speed, engine load and humidity that are contained in lookup tables that adjust and limit cam position and valve overlap. Generally speaking, in order to maintain optimum engine performance, intake and exhaust valve overlap is reduced with higher ambient humidity and vice versa.
公开/授权文献:
- CN108412621B 基于湿度控制凸轮轴相位的方法 公开/授权日：2021-06-04