Meanwhile, a relatively large steering shaft and tube diameter has been specified to increase rigidity, the purpose of which is to reduce the transmission of vibrations through the steering wheel. Communication is enhanced with a specially tuned electric power steering system, which includes variable gear ratios to reduce effort at low speeds and improve the feeling of stability at high speeds.
With regards to the steering, a number of important engineering features have been adopted to improve the LC’s steering feel. Whether accelerating or decelerating, this feature allows the driver to scribe smooth arcs around bends with minimal steering correction. In this image we can see its housing cut away to expose the engagement of planetary and side gears.Įngineered to be immediately sensitive to changing torque inputs, the differential continuously distributes a stabilising amount of torque across both axles in order to give the LC predictable, natural-feeling handling behaviour. This lengthy machining process retains the tight, interlocking grain structure created during the original forging process, which in turn endows the wheel with superior strength and less weight than an equivalent cast alloy – a wheel made by pouring molten metal into a cast.įorged alloy wheels are rarely available in factory specification due to their prohibitive cost but come as standard on Sport Pack and Sport + Pack grades.ĭistributing torque between the rear wheels of Sport + Pack grade models is a Torsen Type-B differential. Not only is LC the first model in its segment to be available with 21-inch alloys, but each of these wheels is carved from a single billet. However, the wheel itself is a stunning example of race-derived technology that should not be ignored.Įvidence of design is broadcast through seductive styling but other features can sometimes be hidden from view
Produced by original equipment manufacturer JTEKTto display its high-quality bearings, steering and driveline components, the exhibit also offered a fascinating behind-the-scenes view of a number of key engineering features.īeginning from the ground up, the wheel assembly had lost around one third of its circumference in order to expose the hub unit. Which is probably why this unique ‘see-through’ Lexus LC 500 proved to be a show-stopping exhibit at the recent Frankfurt motor show. But while evidence of design is broadcast through the LC’s seductive styling, other features can sometimes be hidden from view. As the new flagship luxury coupe of the model range, the Lexus LC delivers an outstanding showcase of talent in the fields of vehicle design, engineering and technology.
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