Mazda aims to minimize the weight of its vehicles as much as possible, exemplified by the lightweight MX-5 Miata weighing only 1,088 kg, thanks to a weight reduction strategy implemented at every possible position. However, more detailed changes are being pursued by the Japanese automaker with the upcoming launch of a new product.
A patent recently granted to the automaker describes in detail the methods and processes the company will employ to manufacture such a vehicle. The document does not describe any specific car other than mentioning that it will have four doors. Based on the accompanying image, it could be a sedan.
Mazda may be considering this technology as a means to reduce weight in the era of electrification. Other patents recently filed by the automaker suggest they are struggling to create more complete hybrid and electric vehicles, both of which tend to be heavier than pure gasoline-powered cars. One way to counteract this added weight is by eliminating the next heaviest component of the car after the powertrain, body, and chassis.
The automaker seems particularly interested in overcoming carbon fiber layers in different directions to create what they call “near-isotropic” material or material that is strong in all directions when subjected to load. The design not only outlines how to create this material but also provides various configurations that will be used for different parts of the car. The roof pillars, frame rails, and bumper beams all have different cross-sectional shapes.
Based on the legal details of the document, Mazda will not be alone in developing this carbon fiber chassis. The patent is assigned to both the Japanese automaker as well as Nippon Steel & Sumikin Materials Co., Ltd, indicating a collaboration with an experienced partner in carbon fiber structure development.
It is unknown whether or when a Mazda with a carbon fiber chassis will appear on the streets, but it is fascinating to learn what a passionate-oriented automaker like Mazda is researching behind the scenes. Perhaps one day Mazda will release a hybrid sedan or electric sedan that is significantly lighter than its competitors, thanks to the carbon fiber chassis.
Sơn Phạm (Forum.autodaily.vn)
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