2.3.1. Test Vehicle Selection

The Nanjing Bus Company selected four common brands of pure electric bus available in the market, each offering two types of buses, whose lengths are approximately 8 m and 10 m. This was done to ensure an equivalent size for the test vehicles.

The test vehicles were divided into two groups based on vehicle length. The first group, Group A, contained buses that were approximately 8 m in length, while Group B contained those that were approximately 10 m in length. All the vehicles were newly manufactured, and they met national standards requirements such as JT/T1026-2016 titled "The general technical conditions of pure electric city buses". The vehicle details are listed in Table 1, and Figures 1–4 show the four brands of buses.


**Table 1.** Vehicle Brand Involved in the Test.

**Figure 1.** BYD brand.

**Figure 2.** Yinlong brand.

**Figure 3.** Skywell brand.

**Figure 4.** Jiankang brand.
