PT Toyota Astra Motor, as the sole agent of Toyota in Indonesia, made updates to the Toyota Avanza, mid-August. As distinct from the previous generation, the name given frills Avanza Grand New, and given the design of the exterior and interior feature additions. Complete it, even gave Toyota engine technology Dual VVT-i (Variable Valve Timing with intelligent) into mechanical heart Avanza. The goal, making the engine more efficient and environmentally friendly.
System Dual VVT-i Grand New Veloz contained in the cylinder head and the valve opening timing mechanism on the machine. With the application of VVT-i, the valve opening time (valve timing) can be tailored to the needs of the engine. This system was originally applied to the valve (intake) who gave birth to tenologi VVT-i. Along with the development of technology, the exhaust valve (exhaust) was also controlled, so was born the Dual VVT-i.
By regulating the exposure time of the intake valve and exhaust, intake air control, as well as flue gas at all engine working conditions are much better. For example at the start, the setting is maximized so that the machine immediately got the ideal temperature. The advantage, power and engine torque immediately available. Even so, the temperature of catalytic converters also heat faster so that they can work a maximum flue gas filter so that the result is more environmentally friendly.When the engine has reached the working temperature, the valve opening timing can be adjusted with the rotary engine. His suit is different when it comes to work in traffic conditions or when running at high engine speed on the freeway.
On the other hand, PT Honda Prospect Motor equip Honda Mobilio technology with i-VTEC (Intelligent Variable Valve Timing and lift Electronic Control). This system is combined with a CVT transmission Earth Dream Technology, Honda claims this results in the performance of the transmission gear shift is more subtle to participate menghasillkan more efficient fuel consumption.In the i-VTEC engine, just opening the intake valves are adjusted by a computer. Height adjustment valve opening is regulated electronically. At low speed, the valve is fully open and the other valves open just slightly to create the effect of circulating air in the combustion chamber, thus achieving optimal engine power and acceleration responsive either at high or low rpm rotation.
At Honda Mobilio, kind of i-VTEC SOHC engine used for taking Noken (camshaft) single as a storage area suction and exhaust valves. In this type of distance and duration of the valve opening will be different when the machine is idle, the engine rotation medium and high engine speed. This means that when the car requires fast acceleration with high engine speed, the valve opening will be greater in order to bring maximum performance, on the contrary at the time drove slowly in heavy traffic, opening the valve will open as needed.
The advantages are typical of this technology lies in the ability of the small cylinder engine produces power comparable to large cylinder engine, while providing an economical fuel consumption. This technology makes optimum performance at high speeds while still maintaining fuel efficiency so as to reduce the level of emissions and pollution.
The next difference is in the transmission system used. Toyota still confident relying 4-speed automatic transmission on a conventional Grand New Veloz, while Honda chose CVT transmission technology with the latest in Honda's Earth Dreams Mobilio.
Efficiency test
After filling a fuel according to manufacturers' recommendations, we were starting from KM.19 Jakarta-Cikampek toll road heading to Bandung. In this test, we strive to achieve an average speed of cars in the range of 70-80 kph, by applying the principle of driving efficiently and safely (driving safety). The principle of efficient driving we did with indication menyalanya ECO indicator light on the instrument panel Grand New Veloz and Mobilio RS.
The results are for testing outside the city 219 km, Toyota Grand New Veloz able to record fuel consumption average of 17.15 kpl with an average speed of 74.8 kph. While Honda Mobilio RS CVT is able to achieve better fuel consumption up to 19.45 kpl with average speed of 75.0 kph.
One of the things that makes Mobilio more efficient in fuel consumption is due to the use of a CVT transmission. When driving at the same speed, Mobilio proved presenting engine speed is much lower than Veloz. While at a speed of 60 kph the engine rotation Mobilio stands at 1,400 rpm. While at the same speed Veloz has touched 2,000 rpm. Similarly, when at a speed of 100 kph and 120 kph, Honda Mobilio got a round figure of 2,000 and 2,400 rpm the engine while the engine rev Veloz was in 3000 and 3700 rp
As for the results of the testing in the city, Honda Mobilio spend 3.57 liters of petrol for a distance of 37.9 km. The result stands at 10.6 kpl with an average speed of 14 kph. While Grand New Veloz spent 4.33 per liter for a distance of 38.5 km, which means its fuel consumption stands at 8.9 MPA with an average speed of the same is 14 kph. These data provide direct evidence of the advantages of technology alloy i-VTEC engine and CVT Honda's Earth Dreams on Mobilio compared Dual VVT-i technology and 4-speed automatic transmission Toyota conventional.
Even so, the Dual VVT-i technology is promoted by the Grand New Veloz is claimed to provide better fuel efficiency than VVT-i engine that carried the previous Avanza. According to a statement from the Chief Engineer Grand New Veloz, Kazuhiko Yamashita, this new engine can deliver improved efficiency by 20 percent for a 1.5 liter engine. That is, the choice to enhance transmission used by this car, it should be able to provide better efficiency for Grand New Toyota Avanza and Veloz.
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