公开(公告)号：WO2002094077A1

公开(公告)日：2002-11-28

申请号：PCT/US2002/016248

申请日：2002-05-21

申请人： TENNANT COMPANY

发明人： ERKO, Robert, J. ,  HAEG, John, Peter

IPC分类号： A47L11/40

CPC分类号： A47L11/4011 ,  A47L11/14 ,  A47L11/283 ,  A47L11/4069

摘要： A control system for controlling the work output delivered to a floor surface by a work tool (18) associated with a floor maintenance machine (10), such as a burnisher, is provided. In one embodiment, a voltage regulator regulates the voltage provided to the motor assembly (16) that drives the work tool. A current sensor (50) monitors the motor current drawn by the motor assembly and provides a signal representative thereof to a controller (60). The controller also receives as an input a work selector signal representative of a desired level of work output. Based on the work selector signal and the sensed motor current, the controller provides a control signal to an actuator (20). In response to the control signal, the actuator raises or lowers the work tool (18) relative to the floor (24) as need to control the work output delivered to the floor. In another embodiment, the voltage regulator is omitted, and the controller is configured to generate the control signal based on the product of the motor current and the voltage provided to the motor assembly.

摘要翻译： 提供了一种控制系统，用于控制通过与诸如抛光机的地板维护机器（10）相关联的工作工具（18）输送到地板表面的工作输出。 在一个实施例中，电压调节器调节提供给驱动工作工具的电动机组件（16）的电压。 电流传感器（50）监测由电动机组件吸取的电动机电流并将其代表的信号提供给控制器（60）。 控制器还接收表示所需工作输出等级的工作选择器信号作为输入。 基于工作选择器信号和感测到的电动机电流，控制器向致动器（20）提供控制信号。 响应于控制信号，致动器相对于地板（24）升高或降低作业工具（18），因为需要控制输送到地面的工作输出。 在另一个实施例中，省略了电压调节器，并且控制器被配置为基于电动机电流和提供给电动机组件的电压的乘积来产生控制信号。