Car Wheels and Parts 3D Modeling Tutorials.
Knowing the dimensions of the driver assist the manufacturer in designing the car seat to provide the maximum possible safety as well as the utmost in ride comfort. Test results proved it possible to determine drivers’ head and chest positions relative to potentially injurious elements such as the steering wheel and airbag it is even possible to determine some physical dimensions of drivers.
This process involves installing sensors in seats, utilizing specific CAE (computer assisted engineering) software for numerical evaluations, and experimental tools for laboratory test rigs and road tests.
Engineers have gone through a series of tests to determine whether it is possible to determine driver position to boost safety. Occupant protection systems must find information about the driver’s chosen seat position and the size of the driver especially if they are exceptionally large or small. Now, car manufacturers must try predict car driver size and position to enhance safety in crashes. Positioning of the occupant with respect to the steering wheel must be considered so injury is not caused by the steering wheel or air bag in a collision. As government regulations become more comprehensive, the design of the car seat must deal with more than just seat belts. These automatic, adjustments enhance comfort by measurable levels and achieve a new standard in seat design.Īn integral dimension to any seat design is the aspect of safety. The system is dynamic and checks the comfort of the occupant every couple of minutes, and if need be, adjusts the seating surface, providing extended comfort during long drives. When a new occupant sits in the car, the Intelligent Seat recognizes the person and adjusts the seat to best fit the individual by providing the proper lumbar, thigh, and bolster support while improving the distribution of pressure caused by the occupant’s body weight on the seat.
The Intelligent Seat provides custom fit to each passenger in the vehicle. A computer installed in the squab controls the contour of the entire seat surface automatically. This breakthrough in ergonomic design technology does not just deal with the traditional adjustments of the lumbar support area. A marvel in seat design is BCAM International’s innovation recently installed into Cadillac automobiles: the world’s first “intelligent” passenger car seat. Since these vehicles can ill afford to divert 4,000 to 6,000 Watts to a climate-control system, the 110 Watts of input electricity needed to run each system is optimal. This product is foreseen in the installation into electric cars. Additionally, a thin 20 pore-per-inch layer of reticulated foam is sandwiched between the cushion and the seat fabric to allow the occupant to feel the air.
These channels allow the heated or cooled air to spread throughout the seat. Air passes through unique channels formed in the foam seat back. The heating and cooling of the seats occurs through both convection and conduction. The head support is connected to the top of the squab by two metal circular tube shafts that are permanently attached to the head support and slide into two holes in the squab. The standard base span is from the seated rear to just before the knees and the typical squab extends to the shoulders on the average height person.
The bottom of the squab is connected to the rear of the base and the release lever unlocks the squab from the upright position and allows for the afore-mentioned leaning. The base may also be equipped with a release lever to allow the squab to lean forward to permit access to back seats in two-door automobiles.
This movement is accomplished either by manual latches or by electric levers. The base can usually be moved forward and back on metal railings and may move up and down to adjust to different body types. The cushioning agent is especially important when considering that moving cars can transmit vibrations near the human spine’s resonant frequency of 3 Hz. When choosing this product, foam manufacturers must consider the most suitable foam for balancing comfort, support, safety, and recycling properties. These components are usually constructed from foam to provide comfort to the rider. The front driver and passenger seats of most vehicles have three main parts: the seat back (squab), seat base (cushion), and the headrest. The standard car seat is designed to support thighs, the buttocks, lower and upper back, and head support (Fig.