In this video, I am sharing my knowledge about the car platform in response of a question asked by a YouTube subscriber.
The Ladder frame chassis is a robust metal framework consisting of two large metal beams joined together by shorter support beams in between. With a Ladder frame chassis, the body and engine of the vehicle are mounted on top of the ladder frame making it a robust structure ideal for Commercial Trucks, SUV’s and 4×4 Utes that are meant to carry heavy loads for extended periods.
With the Monocoque design, the chassis is forged into the basic structure of the vehicle creating one singular object known as a Uni-body, or Monocoque. Monocoque chassis is mainly used in the production of small SUVs, luxury sedans, and hatchbacks, offering superior safety, ride dynamics, and fuel economy due to its lighter framework.
Platform with Monocoque Design (SUV)
Monocoque design is when the frame is integrated into the body construction making it a single structure. The framework of a unibody is designed and built to support the weight of the vehicle. Manufacturers accomplish this by reinforcing the floor of the vehicle, reinforcing the B and C pillars, and using bracing along with various parts of the body for overall strength and rigidity. The weight of the uni-body design is a lot lighter than the ladder frame because it cuts out bulky steel rails as used in the ladder frame and this results in improved safety and fuel economy.