| 摘要 |
PURPOSE: A wheel loader system based on an electric joystick and a loading work automation method thereof are provided to determine an accurate start point of a loading work and to appropriately apply factors influencing a pattern of the loading work. CONSTITUTION: A wheel loader system based on an electric joystick comprises a user operation unit (110), a control unit (120), a working device driving unit (130), and a sensor input unit (140). A movement pattern for each working condition is defined by compositing four kinds of elements such as a rise rate, a rotation rate, a rise cycle, and a rotation cycle of a working device. When an input is generated through the electric joystick, an action instruction is generated by the wheel loader system according to a joystick output signal. When automatic action of the working device is set, the wheel loader system automatically generates the action instruction. The wheel loader system convers the action instruction into a pressure signal so that the movement of the working device is controlled. [Reference numerals] (110) User operation unit; (111) User interface operation unit; (112) Electric joystick; (120) Control unit; (121) Main control unit; (122) Loading automation control unit; (130) Working device driving unit; (131) Electric proportional valve; (132) Main control valve; (133) Working device ascent cylinder; (134) Working device descent cylinder; (135) Working device inner rotary cylinder; (136) Working device outer rotary cylinder; (140) Sensor input unit; (141) Pilot pressure sensor; (142) Working device ascent cylinder pressure sensor; (143) Working device rotary cylinder pressure sensor; (144) Working device device unit angle sensor; (146) Working device position/angle calculation unit; (147) Driving acceleration sensor; (151) Wheel loader device (engine, mission, surrounding devices); (152) User monitoring processing unit |
