Which part does the vehicle frame refer to?
2 Answers
The position of the vehicle frame is supported on the wheels through the suspension system, front axle, and rear axle. Here is more information about the frame: 1. Concept: The vehicle frame is a type of automobile chassis structure, but most modern cars no longer use a frame-type chassis design. Only trucks and buses still employ this design. 2. Function of the frame: It serves as the main load-bearing component, carrying almost the entire weight of the cargo. The quality of the frame affects the vehicle's overall lifespan and driving safety. Generally, vehicles without a frame are called unibody constructions, while those with a frame are referred to as body-on-frame constructions. 3. Material: The material of the vehicle frame is mostly high-strength steel plates, primarily connected by riveting crossbeams and longitudinal beams to form a rigid structure. This ensures sufficient strength and stiffness to bear the vehicle's load and the impact transmitted from the wheels.
The vehicle frame is the core supporting skeleton of a car's chassis, directly connected to the suspension systems of all four wheels. Like the main beam of a house, it bears the entire weight of the vehicle, with major components such as the engine and transmission mounted onto it. Older vehicles used to have exposed frames, and many SUVs and pickup trucks still retain this body-on-frame construction today. Especially when off-road vehicles traverse rough terrain, the frame prevents body twisting and deformation. I've personally driven frame-equipped vehicles on mountain roads—while the body sways noticeably, the chassis remains rock solid, showcasing the frame's role. However, modern passenger cars now favor unibody designs, using the outer shell as the load-bearing structure, so no distinct frame is visible.
