Mazda to debut next-generation midsize sedan diesel concept and CX-5 SUV with SKYACTIV Technology at Tokyo Motor Show; new push on clean diesels in Japan market
|The Takeri diesel concept. Click to enlarge.|
Mazda Motor Corporation will showcase the global premiere of the Mazda Takeri next-generation midsize sedan concept car at the upcoming 42nd Tokyo Motor Show. Mazda will also hold the Japan debut of the new CX-5 crossover SUV. Both vehicles are equipped with the full array of Mazda’s SKYACTIV Technology (earlier post).
The TAKERI features the new SKYACTIV-D clean diesel engine, as well as Mazda’s idling stop system i-stop, and a new regenerative braking system. The regenerative braking system converts kinetic energy to electricity during deceleration, stores it in capacitors and then uses it to power the vehicle’s electric equipment, thereby reducing load on the engine and saving fuel.
|Mazda regenerative braking system. Click to enlarge.|
Mazda says that the regenerative braking system represents Step Two of its Building Block Strategy. After renewing existing technologies, such as engines and bodies, Step One of the Building Block Strategy is idling stop technology (i-stop), Step Two is regenerative braking technology, and Step Three is electric drive technology (hybrid, etc.).
CX-5. The Mazda CX-5 is the first of Mazda’s next generation products that will feature the complete range of SKYACTIV Technology, including powertrain, body and chassis. The CX-5 will be Mazda’s first production model equipped with the new SKYACTIV-D clean diesel engine.
The CX-5 will also be the first passenger vehicle in Japan to combine a clean diesel engine with an idling stop system. It will deliver maximum torque of 420 N·m (309 lb-ft), more than some 4.0-liter V6 gasoline engine vehicles, and the best fuel economy of any SUV on the Japanese market at 18.6km/L (43.8 mpg US, 5.4 L/100km) on the JC08 mode test cycle.
CX-5 customers can also select the direct injection SKYACTIV-G gasoline engine. Equipped with the new SKYACTIV-DRIVE automatic transmission and i-stop idling stop system, SKYACTIV-G FWD models achieve 16.0 km/L (37.6 mpg US, 6.25 L/100km) on the JC08 mode test cycle, with Mazda in-house measurement.
Mazda’s diesels. Mazda Motor Corporation will progressively introduce clean diesel vehicles to the Japan market, beginning with the new Mazda CX-5 crossover SUV in spring 2012, powered by the SKYACTIV 2.2-liter diesel engine. The SKYACTIV-D 2.2 is the first passenger vehicle diesel engine to pass Japan’s Post New Long-Term Emissions Regulations without the need for NOx aftertreatment technology. Although popular in Europe, current clean diesel vehicles have struggled to gain traction in Japan because they require expensive NOx aftertreatment technology to meet the exhaust gas regulations.
Mazda says that its diesel customers in Japan will be able to enjoy the price advantage of diesel over gasoline, approximately twice as much torque as similar sized gasoline engine vehicles, and 30% better fuel economy. Mazda expects that its clean diesel vehicles will become a core part of its product lineup in Japan.
Mazda has also redeveloped its unique idling stop system, i-stop, for use with the SKYACTIV-D 2.2 engine. Unlike other diesel engine stop-start systems that require two engine cycles to restart combustion, i-stop restarts in a single cycle by careful positioning of the pistons as the engine stops. At less than 0.4 seconds, i-stop achieves what Mazda characterizes as the world’s fastest diesel engine restart time. The result is a smooth restart that is barely noticeable, as well as an improvement in fuel economy.