发明名称 IDLE SPEED CONTROL FOR A HANDHELD POWER TOOL
摘要 Method for controlling fuel metering in a carburetor or a low pressure injection system of an internal combustion engine when the engine is operating at idle speed, the method includes the steps of: a) monitoring the engine speed; b) determining a first variable (A) based on a first moving average algorithm using the monitored engine speed as input data; c) determining a second variable (B) based on a second moving average algorithm using the monitored engine speed as input data, where the first moving average algorithm is arranged to react faster to an engine speed change than the second moving average algorithm; d) comparing the second variable (B) to the first variable (A), where if 1) the second variable (B) is higher than the first variable (A): the fuel metering is set in a first leaner setting, and where if 2) the second variable (B) is lower than the first variable (A): the fuel metering is set in a second richer setting.
申请公布号 US2010252011(A1) 申请公布日期 2010.10.07
申请号 US20100679276 申请日期 2010.05.19
申请人 HUSQVARNA AB 发明人 CARLSSON BO;LARSSON MIKAEL
分类号 F02B33/04;F02M7/00 主分类号 F02B33/04
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