Study for Commercial Vehicle Cab Occupant Protection Standard of GB 26512-2021 and Development Test

The national standard GB26512-2021 of “The protection of the occupants of the cab of commercial vehicles” brings challenges to automobile enterprises to meet certification requirements. This paper introduces the technical route of revisions of GB26512-2021, and analyzes the technical requirements of GB26512-2021 for automobile test institutions and commercial vehicle manufactures. This paper introduces the technical route of revisions of GB26512-2021, and analyzes common key issues of test method of this standard in the course of implementation. This paper introduces the technical route of revisions of GB26512-2021, and analyzes common key issues of test method of this standard in the course of implementation. Based on the basis of a large number of test dates and typical test cases with the domestic manufactures, the paper introduces the solution that the cab of commercial vehicles adopts high strength frame structure, then conducts a research and analysis on the specific structure of the typical test problem cases, then analyzes the common key issues of test method of this standard in the course of implementation. Typical test problem cases, then analyzes the methods that the manufacturers improve key collision components at a lower cost. This paper provides some This paper provides some reference suggestions for solutions on safety standard of structural strength of commercial vehicle cab in china, and development test of commercial vehicle cab.