Measuring device for measuring maximum width of turning channel

The invention belongs to the field of whole vehicle test research, and particularly relates to a device for measuring the maximum width of a turning channel, which comprises a functional rod assembly, a laser radar assembly and a display panel, the functional rod assembly comprises a first functional rod and a second functional rod; the first functional rod is fixed at the front end of a test vehicle and is located right above the outer loop line of a test road, and the second functional rod is fixed at the center of a rear axle or a rear axle group of the test vehicle and is arranged in a diagonal direction with the first functional rod; the laser radar assembly is placed at the circle center position of the test road arc section; the display panel is located in a cab of the test vehicle and is in communication connection with the first function rod, the second function rod and the laser radar assembly. The maximum width of the vehicle turning channel can be accurately measured, it is guaranteed that the dev