i-VTEC engine

i-VTEC engine

Currently i-VTEC technology is available on two Honda products; the 2002 Honda CRV and the 2002 Acura RSX. Two complimenting systems are part of the i-VTEC system. Variable valve lift is accomplished by using two rocker arms and different camshaft profiles to change the opening of the valve. The other technology is a computer controlled variable camshaft actuator that can vary a camshaft up to 50 degrees relative to crankshaft angle. Let’s look at each in a little more detail.

Varying the camshaft in relation to the crankshaft is done with engine oil pressure acting on an actuator located on the end of the intake camshaft. The computer varies the oil pressure to change the rotation of the camshaft on its drive sprocket. This changes the valve overlap. Valve overlap is the amount of time both the intake and exhaust valves are open at the same time. Retarding the camshaft decreases the amount of overlap, while advancing the camshaft increases overlap.
The new 1.3L i-VTEC engine is agile and intelligent: at low engine speeds one of the two intake valves is idled. The engine sips gasoline, using a lean fuel mix at low engine speeds for further improved combustion efficiency.

i-DSI = Intelligent-Dual Sequential Ignition

i-DSI = Intelligent-Dual Sequential Ignition

The dual sequential ignition system optimizes the timing of each spark plug based on engine speed and engine load. The intensive combustion at all engine speeds not only controls knocking, but also permits a much higher compression ratio (10.8:1) to achieve a higher output with less fuel consumed compared to a conventional design.
Key to the i-DSI engine is rapid, intensive combustion, using two spark plugs in each cylinder mounted diagonally opposite one another, and a very compact, high-swirl combustion chamber made possible by the narrow (30°) valve angle and SOHC single pivot cylinder head.
Each pair of spark plugs is fired sequentially with the interval between the two depending on engine rpm and load. The intake side plug ignites first, then as the flame propagates, the exhaust side plug is fired (before top-dead-centre), and the flame expands rapidly into the whole area to achieve complete combustion. This arrangement provides much faster combustion and higher cylinder pressures to provide high engine output.

VTEC

Advanced technology Variable Valve Timing and Lift Electronic Controlled (VTEC) Honda innovation results show different mechanisms. The main difference is the inclusion of valve movement. In the 16 valve engine, there is two of each incoming and exhaust valves in each cylinder.
VTEC is applied only on the intake valve. In this valve controlling the efficiency of the engine more powerful. The assumption, the process does not require disposal of the variable valve opening for the more smoothly the exhaust, engine work will be more lightly.
In VTEC engine, the second intake valve does not always move together. For example, at low speed there is only one valve is opened. Opening was also relatively small because the characters are punched camshaft valve is suitable for low speed. This condition is considered fit for the machine. Since at low rpm a lot of unnecessary air supply. In addition, there could be air turbulence to help mix the fuel. Engines so efficient, efficient, environmentally friendly too.
With increasing engine speed, air supply needs are also increasing. Directly answered by the second valve. Larger opening for nok chamshaft have a higher degree of character. Fun, had joined the first valve to open wider. This is because there are pins that connect the rocker arm and push pin. This will automatically lock the second pin rocker arm. Because the second rocker arm which is driven by the camshaft duration nok higher, so follow the movement of the first valve.

Drive-By-Wire

Drive-By-Wire (DBW) is acceleration technology that is used to replace mechanical connections linking the accelerator with the engine. Drive-by-Wire was first pioneered in Formula 1 racing car engine Honda and Honda's CART. Currently, DBW also been applied in commercial products, Honda, among other New Honda Accord and Honda New CR-V and Honda New Jazz RS. Technology Drive-By-Wire provides smoother acceleration for the vehicle that will also affect the level of fuel efficiency. In addition, the technology also prevents the occurrence of spikes DBW torque shock due to excessive even though the driver stepped accelerator suddenly. This provides security and comfort levels are higher in bad road conditions or when parked. When the car starts moving or is at low speed, technology, Drive-By-Wire set so that no acceleration in the increase of torque due to shock, although the driver stepped on the treadle abruptly.

Paddle Shift

Paddle Shift transmission is a technology that allows the driver to move the gear manually by pressing a lever that was behind the wheel.Paddle shift feature can be activated by simply pressing the lever (paddle) when the car was in the position of the transmission of D or S.
When activated at the position D, the paddle shift will operate with semi-manual method, where the transmission will change automatically when the machine detects the time of replacement teeth, but the driver did not press the lever.Meanwhile, if activated in the S position, paddle shift will work completely manually, allowing the driver full control of replacement tooth transmit like a car manual.Paddle Shift provide the level of acceleration and higher torque, as well as ergonomically designed as is usually found on an F1 car. Technology paddle shift has been applied to the Honda Civic, All New Honda Jazz and the All New Honda City.

Immobilizer Anti-Theft System

Immobilizer Anti-Theft System is a vehicle security system using a pair of computer chip that is placed inside the key and the engine. This system provides the security level is much higher because it does not allow theft of car using a false key or ignition force.Where is the immobilizer Anti-Theft Technology System was found?Honda's product technology development has become one of the standard safety features in all variants of Honda's New Accord and Honda New CR-V.How immobilizer Anti-Theft System Work?The system uses computer chips in a pair of keys and the car engine,

Steermatic

Technology steermatic 7-speed transmission allows the turn easily, directly from the steering wheel. Transfer of transmission can be adjusted with the road conditions and driving style.
Simply press the main button at the bottom right of the steering wheel, then on the instrument panel will display the position of teeth that are used in the form of digital display.
To perform the switching gear, press the plus-minus buttons found on the steering wheel to adjust the gear higher or lace