Synergy between man, machine defined by NSX
What has now become the 2017 Acura NSX made its debut strictly as an exercise in design in the form of a concept vehicle at the 2012 Detroit International Auto Show, that had yet to be given approval for production.
The original course of action for the second generation NSX was always for it to be a hybrid model, but significant changes took place over the lengthy period of its metamorphosis, and about halfway through the development process, a more revolutionary approach, with advanced technology became the focus, trumping what was to have been a more conventional hybrid vehicle.
Among its many innovations, this latest iteration NSX showcases a “man-machine synergy” approach with its Sport Hybrid Super Handling All-Wheel Drive (Sport Hybrid SH-AWD) — the first such technology in the normal realm of supercars, a categorization that it now justifiably warrants.
The key hybrid component is the Intelligent Power Drive Unit (PDU) that contains the lithium-ion battery pack, consisting of four modules, each with 18 individual battery cells contained within a specially-designed, caseless structure utilizing the vehicle body itself for a sturdy lightweight housing.
The hybrid system’s PDU incorporates a compact “three-in-one” design, which converts direct current to alternating current, supplying all three electric motors.
The total motive force delivered by the combined systems is 573 horsepower and 476 pound feet of torque.
The exterior design is a harmonious blend of sharp angles and voluptuous curves, while being a case study in function dictating form, with total airflow management as a key element in delivering the level of aerodynamics required for the effective and efficient thermal control necessary for proper operation of its hybrid system.
There are six different heat sources to be managed: the twin turbo engine, the PDU, and the three electric drive motors.
Providing sufficient cooling for these elements, airflow is handled through 10 heat exchangers positioned in the front grille area, side “flying C-pillar” air intakes, as well as through the engine compartment.
Forward visibility is outstanding thanks to the super thin “A” pillar design, while the rear side view is somewhat limited by the large flying “C” pillar, and the visors are minimally useful depending upon one’s height.
The ride quality is most forgiving with the coilover Magnetorheological dampers at each corner — railroad track crossings and bumps in the road are barely noticeable.
Fuel consumption: 20 mpg city/22 mpg highway