Recently, many friends have sent me private messages to the editor who don’t know much about some issues related to automotive software, so orange will make a summary for everyone in this regard. Interested friends can come and learn about it together. Testing is an important part of the car development process. As software is increasingly used in modern vehicles, so does the need for rigorous software testing methods. A special aspect that has been overlooked is the practice of software testing in the commercial vehicle sector with many unique features.1. DefinitionThe European Union defines a "commercial vehicle" according to the design purpose of its structure and type of equipment, any motorized road vehicle capable of carrying: a) more than nine persons, including the driver; b) cargo and standard fuel tanks [1] is classified as a "commercial vehicle" ".Light commercial vehicle (LCV) is the official EU term for commercial vehicles with gross vehicle weight 3.5 tons. Vehicles that meet this category include vans, minibuses and light trucks; heavy commercial vehicles (HCV) are those with gross vehicle weight > 3.5 tons. The official EU term for commercial vehicles, vehicles that fit into this category are vans, trucks, tankers, etc. A broader definition of HCV also includes heavy equipment and machinery including agricultural vehicles (tractors, harvesters, etc.), and construction vehicles (rock drills, bulldozers, wheel loaders, etc.).The sco...