Engineering

Retuned dynamics for a more engaging drive

The focus for Infiniti’s QX60 engineers was to provide an even more assured and confidence-inspiring driving experience. This has been achieved through the introduction of new chassis technologies and revised settings for components carried over from the previous model.

The independent-strut front and multi-link rear suspension feature new shock absorbers and spring units which result in smoother ride control with a reduction in body movement when cornering. New 235 / 65 R18 T-rated all-season tires are standard, selected to provide improvements in grip and balance. Completing the dynamic changes, a retuned vehicle-speed-sensitive power steering system, now requiring just 2.9 turns lock-to-lock, offers the driver increased response to steering inputs and enhanced feedback.

The Infiniti Drive Mode Selector (DMS) allows the driver to vary throttle response and gearshift patterns to optimize performance for the conditions and their own preferences. The driver can select from four drive modes – Standard, Sport, Eco and Snow – using a rotary dial mounted in the center console.

To enhance stability and feel through the controls when cornering, the Active Trace Control system links with the QX60’s standard Vehicle Dynamic Control system (upgraded for 2016), to automatically apply the brakes in a specific pattern and then smooth engine torque characteristics while accelerating.

The new QX60 is available in four models, QX60, QX60 AWD, QX60 Hybrid and QX60 Hybrid AWD. All variants provide the responsive performance and fuel efficiency increasingly demanded by premium crossover buyers.

The standard 3.5-liter V6 is mated to a sport-tuned, electronically controlled continuously variable transmission with D-Step Logic that provides high levels of response and a seamless, efficient shift feel. The transmission’s logic mimics the shift pattern of a more traditional step transmission. Included is a manual shift mode, allowing the driver to manually select from the pre-set gear ratios, if preferred.

The 3.5-liter V6 engine produces 265 hp at 6,400 rpm with peak torque of 336 Nm (248 lb-ft) available at 4,400 rpm. The engine includes a variable induction control system to improve volumetric efficiency at low and middle speed ranges, while an efficient belt layout reduces maintenance requirements and aids fuel efficiency. Revised engine mounts reduce the vibration transmitted to the cabin and controls engine movement during cornering for enhanced stability and response.

The 2015 QX60 is also offered with a hybrid drivetrain, featuring a supercharged 2.5-liter inline four-cylinder engine and an electric motor powered by a compact Lithium-ion battery pack. The system produces a combined 250 hp and 329 Nm (243 lb-ft) of torque. For 2016, the engine is mounted using new electric-active controlled liquid-filled engine mounts for reduced vibration in the cabin and enhanced cornering.