With the comprehensive introduction of environmental protection and energy conservation standards, all new automotive technologies are more or less linked to lightweighting. This time ZF Commercial Vehicle IAA in Hanover, Germany Exhibitors demonstrated a lightweight truck chassis, the introduction of a four-point connection type chassis model of a stable structure. The chassis is made of glass fiber reinforced material, which is approximately 25% less than the weight of the chassis, about 11 kilograms (24 pounds), while the iron chassis weighs about 46 kilograms. HolgerBublies, Head of Development of ZF Commercial Vehicle Chassis Modules, stated: “At the moment, we are using a four-point connection chassis for the MAN chassis of MAN trucks. It has the same size and function. Our task is to make it as light as possible. †The four-point connection integrates the functions of the horizontal and vertical axes and has the function of active rollover suppression. After such integration, the separate connection between the stabilizer bars is eliminated, minus 50 to 60 kilograms of weight. In addition, the advantage of this structure is that it can reduce the production cost. ZF uses resin transfer molding for serial production. In addition to reducing the weight of trucks, the other point is to reduce the cost of components. Therefore, ZF used glass fiber reinforced material to make a four-point connection stable structure, and the original carbon fiber is 8%-10% more expensive than it is. The use of composite materials increases the cost of the material, which translates to a cost increase of 5 to 10 euros per kilogram of light weight composite used. Bublies hopes that the four-point connection stabilization structure of glass fiber reinforced materials will become a chassis solution, providing automotive manufacturers with "ultra-efficient" prototypes. Although the material cost is slightly higher, it has been optimized to minimize costs and the original carbon fiber structure will be more expensive. ZF currently has a workshop producing composite parts and internal testing procedures. Bublies said: "This technology - composites is a big project for the company. We have a whole team to develop it."
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