
基本信息:
- 专利标题: 海拔修正系数获取方法和装置
- 申请号:CN201310719383.3 申请日:2013-12-23
- 公开(公告)号:CN103711600B 公开(公告)日:2016-05-18
- 发明人: 祁克光 , 李林林
- 申请人: 奇瑞汽车股份有限公司
- 申请人地址: 安徽省芜湖市芜湖经济技术开发区长春路8号
- 专利权人: 奇瑞汽车股份有限公司
- 当前专利权人: 奇瑞汽车股份有限公司
- 当前专利权人地址: 安徽省芜湖市芜湖经济技术开发区长春路8号
- 代理机构: 北京三高永信知识产权代理有限责任公司
- 代理人: 江崇玉
- 主分类号: F02D41/08
- IPC分类号: F02D41/08
Disclosed is a method for acquiring an altitude correction coefficient, comprising: acquiring an initial value of an altitude correction coefficient self-learning filter when a preset event occurs to a vehicle engine, the preset event includes a power-off event, a power-on event, and an unexpected power-down event; evaluating whether the vehicle satisfies a preset self-learning enabling condition, in accordance with an engine rotation speed, a vehicle speed, and status information of designated devices; enabling the altitude correction coefficient self-learning filter when the vehicle satisfies the preset self-learning enabling condition; determining an input of the altitude correction coefficient self-learning filter at least in accordance with operating states of a manifold pressure sensor and a stepping motor; and obtaining a current altitude correction coefficient by self-learning the altitude correction coefficient applying the altitude correction coefficient self-learning filter in accordance with the initial value of the altitude correction coefficient self-learning filter and the input of the altitude correction coefficient self-learning filter. An apparatus for acquiring an altitude correction coefficient is also disclosed. The above method and apparatus improve the accuracy of the altitude correction coefficient and enhance the idling satiability.
公开/授权文献:
- CN103711600A 海拔修正系数获取方法和装置 公开/授权日:2014-04-09