基本信息:
- 专利标题： ENGINE-POWERED TOOL
- 专利标题（中）：发动机工具
- 申请号：PCT/JP2013000333 申请日：2013-01-23
- 公开(公告)号：WO2013111587A2 公开(公告)日：2013-08-01
- 发明人： KAWANO YOSHIKAZU , MURAKAMI TAKUHIRO
- 申请人： HITACHI KOKI KK
- 专利权人： HITACHI KOKI KK
- 当前专利权人： HITACHI KOKI KK
- 优先权： JP2012011597 2012-01-24
摘要：
An engine-powered tool 1 includes a starter motor 106 to be driven by electric power supplied from a battery 80 to start an engine, start control means 102 to be driven by electric power from the battery 80 to control rotation of the starter motor 106, and a switching element (FET) 121 provided in series to a power supply circuit from the battery 80 to the starter motor 106, opening and closing of the switching element being controlled by the start control means. When starting the starter motor 106, PWM control is performed on the switching element and soft start in which a duty ratio is gradually increased is performed. The start control means 102 monitors temperature and battery voltage, and changes a ratio and time for increasing the duty ratio in the PWM control in accordance with the temperature and the voltage.
摘要（中）：
发动机驱动的工具1包括起动电动机106，由起动发动机的电池80供给的电力驱动，启动控制装置102由来自电池80的电力驱动以控制起动电动机106的转动， 以及与从电池80到起动电动机106的电源电路串联设置的开关元件（FET）121，开关元件的开闭由起动控制单元控制。 当启动起动电动机106时，对开关元件执行PWM控制，并执行占空比逐渐增加的软启动。 启动控制装置102监视温度和电池电压，并且根据温度和电压改变用于增加PWM控制中的占空比的比率和时间。