The call for eco-friendly vehicles has made automakers from the US and Japan to compete for the cash, hearts, and mind of the growing green car buyers. And presently it seems like the Japanese brands Toyota and Honda are leading the green vehicle department.
Honda maker of Honda exhaust system and Toyota have provided green car buyers with solutions in the shaped of modern design hybrid cars which were very much welcomed in both US and Japan reflected by the huge sales that these two hybrid brands have obtained. The success of hybrid vehicles has also reached other countries as a matter of fact the Irish government has responded positively to the arrival of hybrids in their market. It has given 50 percent Vehicle Registration Tax (VRT) rebate on hybrids. This is the government’s way of encouraging the Irish people to purchase hybrid vehicles.
Despite the alluring tax incentive that the government is offering it is not enough to convince people to purchase a hybrid vehicle. People buy cars based on three factors and these are looks, performance, and price. Honda Civic and Toyota are very much aware of this and that’s why they have taken the effort to create the Honda Civic IMA and the Toyota Prius in accordance to the preference of their customers.
Honda hybrid cars make use of advanced Honda exhaust technology that lessens harmful emissions same with Toyota although it employs a different exhaust system but the end product is just the same. The new Civic IMA hybrid leads in terms of strict engine performance. Its 1.3 liter Honda engine and 10 kW electrical system revs up a total of 115 bhp while the 1.5 liter petrol Prius produces only 76 bhp. The Honda system compared to Toyota produces more torque and can achieve a higher forward speed.
On the other hand the Prius score much higher in terms of acceleration and economy. It’s almost half a second faster in terms of acceleration to Honda---11.5 seconds compared to the 12.1 seconds for the Civic IMA in a 0 to 100 km/hr race. The Toyota Prius is also more economical than the Honda Civic IMA that is despite the fact that IMA is rated as very clean with CO2 output level of just 109 g/km.
At the heart of the Civic IMA is the new Honda Hybrid System which is consists of a new 1.3 liter 3-stage iVTEC engine plus Integrated Motor Assist (IMA) ---which explains the IMA in its name. The new Honda Hybrid System makes use of intelligent engine functions plus it is said to give the performance similar to that of a 1.8 liter engine while improving fuel economy, achieving very low levels of exhaust emissions, and reducing the system size by five percent.
The Honda Civic IMA’s 3-stage iVTEC engine utilizes three hydraulic pathways to couple and uncouple five rocker arm assembles, providing three stages of valve control depending on the driving conditions---to achieve a combination of responsive driving and fuel economy. In times of deceleration when the cylinder are idle, the combustion in all four cylinders is stopped and sealed shut, which reduces pumping losses caused by the engine aspiration for a ten percent improvement in recovery of braking energy. Everything has been done on the IMA to reduce friction and that includes the use of aluminum die-cast pistons.
The electric motor system of Honda utilizes coils with high-density windings and high-performance magnets to achieve high output. The inverter that is used to control the motor speed is integrated with the motor’s EGU for more precise digital control which is said to contribute to an even greater motor efficiency and fuel economy.
The battery output of the IMA has also been increased by almost 30 percent. Honda also claims that the IMA’s more compact, custom-designed battery storage box provides better cooling performance as well as vibration resistance for long term reliability.
The regenerative braking system of the IMA is engaged hydraulically to allow optimum braking regeneration along with smooth deceleration that conforms to brake-pedal pressure. IMA’s air conditioner unit features a hybrid compressor that is powered by both the engine and the motor. In case rapid cooling is needed it is powered by the engine and the motor combined. Once the temperature is stable it runs off the motor alone for improved comfort and fuel savings.
The performance of both the Prius and Civic hybrids is almost similar however the Civic IMA is better in styling. Honda’s designers have ensured that the appeal of the IMA would match the tastes of modern audience.
About the Author:Jerick Brooks is a BS Computer Science graduate at Columbus State University. He has passion for anything car-related especially car racing. He loves writing and currently works as an IT consultant in a company based in Atlanta.
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