1. Requirements for vehicle close-up rearview testing:

Within a field of view of 0.3m to 3.5m that is consistent with the width of the vehicle at the rear (Figure 3), the driver's position test reference point shown in Figure 4 is used for testing with the help of tools. The requirements are:

(a) The three test objects closest to the test vehicle are in the first row, and it is required to be able to observe at least one 0.15m * 0.15m area in each test object, or the top of the test object. (b) For the test objects in the second and third lines, it is required to be able to observe the entire test object.

2. Vehicle detection area testing requirements:

Within the detection area of 0.2m to 1.0m from the outermost point at the rear of the vehicle that is consistent with the width of the vehicle. Divide by the width of the vehicle (rounded: 1.7m for 1.67m, 1.8m for 1.74m, odd width: test object placed on the centerline of the longitudinal axis; even width: test object placed on both sides based on the centerline of the longitudinal axis), create a 0.1mx0.1m grid in the above area, and place the test object on the grid.

(a) The area between 0.2m and 0.6m is A1 area, and the total number of detections is required to be ≥ 90%;

(b) The area between 0.6m and 1.0m is A2 area, and the total number of detections is required to be ≥ 87%;

(c) There should be no undetected object in a square composed of grids larger than 2 * 2 (see Figure 6).