POWER TOOL, GRASS MOWER AND METHOD FOR CONTROLLING SAME

Provided are a power tool, a grass mower and a method for controlling the grass mower, the grass mower (100) comprising: blades (20) for mowing grass, a chassis (30) for receiving the blades (20), front wheels (41) rotatably connected on the front side of the chassis (30), rear wheels (42) rotatably connected on the rear side of the chassis (20), a motor at least for driving the rear wheels (42) to rotate, a detection device (60) for detecting the rotational speed of the front wheels (41), and a controller (70) for decreasing the speed of the motor when the rotational speed of the front wheels (41) is decreased, wherein the motor is connected to the rear wheels (42), and the detection device (61) is electrically connected to the controller (70). The grass mower controls the travelling speed of the grass mower by detecting the speed of the front wheels, thus enhancing the performance of the grass mower and improving the user experience. La présente invention concerne un outil électrique, une tondeuse à gazon e