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Lexus introduces new NX compact crossover and hybrid; first twin scroll turbocharger in lineup

20 April 2014

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2015 Lexus NX 300h. Click to enlarge.

Lexus introduced the NX compact crossover and hybrid at the 2014 Beijing International Automotive Exhibition. (Earlier post.) The all-new NX is Lexus’ first entry into the luxury compact crossover segment.

The Lexus NX compact crossover offers the brand’s first gasoline turbo engine in the NX 200t. The 2.0L NX 200t turbo will balance fuel economy with responsive acceleration and agility and will be available in the US market along with the NX 300h hybrid. The availability of NX model range, including the NX 200 with a naturally aspirated engine, will vary by market.

Positioned below the RX, the new NX model will provide an exciting entry point into the Lexus crossover and luxury utility vehicle family. Its expressive design and turbocharged performance embody the technology and design focused direction customers can expect from Lexus.

—Jeff Bracken, Lexus group vice president and general manager

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New 2.0L direct injection turbo. Click to enlarge.

The NX 200t will use the all-new 2.0-liter turbo direct injection gasoline engine matched to a six-speed automatic transmission specially tuned for the NX. The six-speed automatic transmission features new torque-demand control logic, which calculates required engine torque and maximizes it.

The Lexus-developed direct-injection turbo engine features the first combination of a cylinder head with an integrated water-cooled exhaust manifold and a twin scroll turbocharger. This combination in addition to other new technologies such as a turbo-specific D-4ST fuel injection technology and continuous variable valve timing with expanded valve opening angles (VVT-iW) realizes both an excellent ride and environmental performance.

The 2.0-liter NX is also the first non-hybrid Lexus to be fitted with an idling-stop system, which reduces fuel consumption by automatically switching off the engine when the vehicle is idling. The system used in the NX has extremely fast engine-restart time.

The new Lexus 2.0-liter turbo engine was tested extensively on various road conditions and harsh environments. The NX 200t produces 235 hp (175 kW) and 258 lb-ft (350 N·m) of torque.

The NX 300h hybrid adopts the Lexus Hybrid Drive with a 2.5-liter Atkinson-cycle engine, generator, motor and battery. Special features of the hybrid model include sprung-weight damping control to increase ride comfort and handling stability by reducing pitching on uneven road surfaces.

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2015_Lexus_NX_300h_034
2015 Lexus NX 300h. Click to enlarge.   2015 Lexus NX 300h. Click to enlarge.

The NX 300h hybrid delivers total system power of 194 hp (145 kW).

China and Russia will offer the NX 200. A naturally aspirated 2.0-liter Valvematic variable valve mechanism gasoline engine matched to a Sequential-Continuously Variable Transmission (S-CVT)/Multi-drive transmission will power the NX 200.

The Lexus Valvematic system provides high torque through an expanded valve opening angle and Variable Valve Timing (VVT) operation range.

The 2.0-liter powerplant has a high compression ratio and diagonal fuel injectors, which optimizes fuel mixture to produce strong power through the rev-range.

The NX has been designed for agile driving, handling stability, turning posture and ride comfort, including yaw-rate response to steering input and stability on uneven road surfaces.

The NX features a highly rigid body with extensive underbody reinforcement. The new body has a comprehensive package of reinforcements, additional bulkheads and spot welding, suspension braces, and the use of Lexus body adhesive, laser-screw welding and high-rigidity glass adhesive.

NX F SPORT models will have newly developed performance dampers to further enhance handling stability.

The NX has an array of innovative on-board technology, including an available Lexus-first Wireless Charging Tray which enables Qi compatible phones to be charged. Other available technology includes the first application of a new Lexus Remote Touch Interface with a touch pad; Pre-Collision System with All-speed Dynamic Radar Cruise Control; Blind Spot Monitor with Rear Cross Traffic Alert; power folding rear seat and Lane Departure Alert. The standard-equipped Multi-information Display features an available Lexus-first G sensor and boost meter.

The Lexus NX will go on sale globally in the second half of 2014, and appear in US showrooms in the fall of 2014. Both US models, NX 200t and NX 300h, will be available in front-wheel-drive and all-weather-drive.

April 20, 2014 in China, Engines, Fuel Efficiency, Hybrids | Permalink | Comments (1) | TrackBack (0)

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What is the relevance of an Hybrid that is not Plug In today ?

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