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A drive unit that achieves a 30% or greater increase in efficiency over traditional one-motor hybrid systems by combining a newly-developed in-line four-cylinder 1.5L class engine, a seven-speed dual clutch transmission with built-in high-output motor, and a lithium ion battery.

Achieving the best efficiency in the world1 by combining a newly-developed engine dedicated for hybrid vehicles, an electric CVT coupled with two built-in motors and a lock-up clutch, and a lithium ion battery, and also by optimally switching between three drive modes according to the driving situation.

Honda’s unique system achieves both fuel economy and superior driving performance at a whole new level by combining a new V6 direct-injection engine and a newly-developed DCT system with a built-in motor, while enabling free control torque distribution to the right and left rear wheels through the use of two motors installed in the rear.

Improved intake efficiency through the use of DOHC and VTC (Variable Timing Control), and achievement of 15%2 or greater reduction in weight and 10%2 improvement in fuel economy with the engine alone through reduction of the bore pitch and the thickness of the cylinder block and camshaft.

Extensive friction reduction measures achieved through the use of VTC based on DOHC and VTEC technology, as well as either cooled EGR (Exhaust Gas Recirculation) technology with the Atkinson cycle, or high-capacity EGR technology with direct-injection technology for either hybrid or gasoline vehicles.

*Pictured is the 1.5L engine for hybrid vehicles

Extensive friction reduction measures achieved through the use of the Atkinson cycle based on DOHC and VTEC technology, as well as the introduction of electronic VTC technology and cooled EGR technology for intake port.

In comparison to current engines, improved fuel efficiency and output by 5%2 and maximum torque by 10%2 with the engine alone through extensive friction reduction measures and adoption of electronic VTC and direct-injection technology based on DOHC and VTEC for intake port.

The V6 i-VTEC engine uses cylinder deactivation technology and electronic VCM. For it, Honda has newly adopted a three-stage VTEC, which not only deactivates three cylinders on one bank of the V6, but also switches between low- and high-revolution valve timing. The engine improves on both low- and mid-speed torque as well as output, and enables both strong and smooth acceleration together with excellent cruising fuel economy. The engine alone offers a 10%2 or greater improvement in fuel economy and a 5%2 or greater improvement in output compared to current engines.

Through optimizing engine rigidity and combustion pressure, an aluminum open deck for the cylinder block was enabled in this top-of-industry lightweight1 1.6L class diesel engine. Mechanical friction was reduced extensively in each section to achieve a low level of friction equivalent to present gasoline engine models.

Top class electrical consumption rate in the world in terms of the required rates in Japan and the U.S. due to factors including a high efficiency coaxial motor, a low-friction gearbox, and an electric servo brake system.

A lightweight and compact body is achieved through a reduction in parts accomplished by factors including simplifying the transmission casing structure and reducing the engine size lengthwise with a control mechanism and innovations in axle placement.

In addition to the reductions in size and weight, transmission efficiency was greatly improved by expanding the ratio range to achieve fuel efficiency improvements of around 5%2 compared to conventional CVT and around 10%2 compared to 5ATs in its class.

In addition to the reductions in size and weight, transmission efficiency was greatly improved by expanding the ratio range to achieve fuel efficiency improvements of around 5%2 compared to conventional CVT and around 10%2 compared to 5ATs in its class.

1. Honda internal research (as of the August 31, 2012)
2. Compared to Honda products
3. Honda internal research (as of March 2013)
4. Honda internal research (as of June 2012)

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