Honda Announces Development of ‘New Honda Hybrid System’ with 3-Stage i-VTEC + IMA

Honda Canada Inc. will introduce a “New Honda Hybrid System” in the all-new 2006 Civic Hybrid that delivers improved performance and increased fuel economy over the current system. The new Civic Hybrid will be available at Honda dealerships across Canada later this fall.

The New Honda Hybrid System features a 3-stage i-VTEC engine that employs Honda’s “intelligent” VTEC (Variable Valve Timing and Lift Electronic Control) system to provide three stages of valve timing (low-rpm, high-rpm and cylinder idle mode), combined with a more compact and efficient Honda IMA (Integrated Motor Assist) system to achieve an approximate 20 per cent increase in system output over the current system. The powerplant will have performance of a 1.8-litre engine while reducing the system size by 5 per cent and attaining a world-leading level of emissions performance. The 2006 Civic with the New Honda Hybrid System will offer significant improvements in both performance and fuel economy over a similarly equipped 2005 Civic Hybrid.

The 3-stage i-VTEC engine employs three hydraulic pathways to couple and uncouple five rocker arm assemblies, providing three stages of valve control depending on the driving conditions.

Aluminum die-cast pistons feature low thermal expansion for less friction under high-temperature conditions, are fitted with ion-plated piston rings and plateau honing of the cylinder walls for a smoother surface.

Honda’s independently developed electric motor employs coils with high-density windings and high-performance magnets to attain output 1.5 times that of the current model while maintaining the same size. Battery output has been increased by around 30 per cent over the current model, while a more compact, custom-designed battery storage box offers increased cooling performance and vibration resistance for enhanced long-term reliability. Combined maximum output is 115 hp @ 6000 rpm (engine + electric motor) with a maximum torque of 135 lb.-ft @ 2500 rpm.