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Top 5 Energy-Efficient Car Technologies
With the advent of new cars in the global car industry advanced and innovative car technologies are also keeping their pace. Recently, many new technologies have entered the market in line with the fast growing car industry.
The modern era requires more energy-efficient car technologies that help boost performance, consume less fuel, and provide good mileage.
The modern era requires more energy-efficient car technologies that help boost performance, consume less fuel, and provide good mileage.
Explained below are the top 5 energy-efficient car technologies witnessed by the industry in the recent times:
Variable Valve Timing (VVT)
VVT is a generic term for an automobile piston engine technology. It is an electronic and mechanical system that enables the engine to have multiple camshafts and allow them to change timings of the intake or exhaust valves while the engine is in operation.
The system as a whole comprises low and high speed cams where the low speed cams is connected to the port opening/closing valve(s) through a direct-driven tappet whereas the high speed cam is paired with the same valve through a piston-type tappet. The piston-type tappet consists of two sealed pistons that have an oil chamber interposed between them. This oil chamber is further connected to the engine's lubricating oil circuit through a control valve. Now, with the help of variable valve timing technology, the cam drives the air flow into the intake and exhaust valves. With traditional valves and technologies, the rocker arms of the engine are sometimes not able to keep pace with the valve at high speed. With VVT, the system can directly select valve timing and valve lift in accordance to the operating speed of the engine.
This advanced piston technology is found in most of the Ferrari and Honda cars. Even the New Honda City is equipped with the high-performance iVTEC (Variable Valve Timing and Lift Electronic Control) engine to offer outstanding performance and thrilling driving dynamics.
The key benefits of this energy-efficient technology is improved fuel efficiency and optimized performance over a variety of driving conditions.
The system as a whole comprises low and high speed cams where the low speed cams is connected to the port opening/closing valve(s) through a direct-driven tappet whereas the high speed cam is paired with the same valve through a piston-type tappet. The piston-type tappet consists of two sealed pistons that have an oil chamber interposed between them. This oil chamber is further connected to the engine's lubricating oil circuit through a control valve. Now, with the help of variable valve timing technology, the cam drives the air flow into the intake and exhaust valves. With traditional valves and technologies, the rocker arms of the engine are sometimes not able to keep pace with the valve at high speed. With VVT, the system can directly select valve timing and valve lift in accordance to the operating speed of the engine.
This advanced piston technology is found in most of the Ferrari and Honda cars. Even the New Honda City is equipped with the high-performance iVTEC (Variable Valve Timing and Lift Electronic Control) engine to offer outstanding performance and thrilling driving dynamics.
The key benefits of this energy-efficient technology is improved fuel efficiency and optimized performance over a variety of driving conditions.
Turbochargers and Superchargers
Turbochargers and superchargers are technological fans that are equipped in the engine to force compressed air into the cylinder. Both these technologies use an air pump to supply increased amount of fuel and air into the engine's cylinder. This helps to increase pressure as well as air density, which in turn helps increase power output and performance because more air-fuel mixture is used for combustion.
A turbocharger is driven by exhaust from the engine whereas a supercharger fan is powered by the engine itself. It is technically a form of supercharger that consists of a radial-flow compressor and turbine mounted on a common shaft. The turbine on the common shaft uses the exhaust energy to power the compressor and sends the compressed air to the cylinder at a pressure below atmospheric pressure.
Today, most turbochargers and superchargers are intercooled so that the compressed air can be cooled once it comes out of the compressor. The cooler air is denser and puts less stress on the engine components, further improving performance.
Some of cars like the Fiat Palio Stile, Fiat Linea, and the Chevrolet Optra plying on Indian roads are equipped with turbocharged diesel engines and are known to deliver amazing performance.
A turbocharger is driven by exhaust from the engine whereas a supercharger fan is powered by the engine itself. It is technically a form of supercharger that consists of a radial-flow compressor and turbine mounted on a common shaft. The turbine on the common shaft uses the exhaust energy to power the compressor and sends the compressed air to the cylinder at a pressure below atmospheric pressure.
Today, most turbochargers and superchargers are intercooled so that the compressed air can be cooled once it comes out of the compressor. The cooler air is denser and puts less stress on the engine components, further improving performance.
Some of cars like the Fiat Palio Stile, Fiat Linea, and the Chevrolet Optra plying on Indian roads are equipped with turbocharged diesel engines and are known to deliver amazing performance.
Direct Fuel Injection
Direct fuel injection is not a new technology but is new for many car buyers. It is a fuel-delivery technology that was introduced in 2004. The primary aim of the technology is to enable gasoline engines to burn fuel more efficiently. This in turn helps increase power output, reduce emissions, and improve fuel efficiency.
In a direct-injection system, the fuel is injected directly into the cylinder and the air enters through the intake manifold. After both the fuel and air enters the cylinder, it compresses the mixture using the piston and ignites it with a spark. The resulting explosion drives the piston downwards and comparatively produces more power than the traditional fuel injection system where fuel and air are premixed before entering the cylinder.
This advanced technology allows more control over the amount of fuel injected and time taken for injection. This also helps in a more complete combustion that further helps to churn out more power from each drop of gasoline.
Direct injection has enabled many car manufacturers including Audi to design competitive cars in terms of horsepower without any compromises made on fuel efficiency. Some of the leading Indian cars with direct fuel injection system are the Indica V2, Indigo, Safari and the Sumo Grande.
In a direct-injection system, the fuel is injected directly into the cylinder and the air enters through the intake manifold. After both the fuel and air enters the cylinder, it compresses the mixture using the piston and ignites it with a spark. The resulting explosion drives the piston downwards and comparatively produces more power than the traditional fuel injection system where fuel and air are premixed before entering the cylinder.
This advanced technology allows more control over the amount of fuel injected and time taken for injection. This also helps in a more complete combustion that further helps to churn out more power from each drop of gasoline.
Direct injection has enabled many car manufacturers including Audi to design competitive cars in terms of horsepower without any compromises made on fuel efficiency. Some of the leading Indian cars with direct fuel injection system are the Indica V2, Indigo, Safari and the Sumo Grande.
Continuously Variable Transmission (CVT)
A continuously variable transmission is a type of automatic transmission that plays a vital role in the car industry as it helps churns out more usable power, improves fuel efficiency, and offers a smoother driving experience.
CVT enables easy, quick, and efficient change in gear ratios between maximum and minimum values. It enables the engine to run at its most efficient revolutions per minute (RPM) over a range of vehicle speeds. The system consists of a high-power rubber belt, a hydraulically operated driving pulley, a mechanical torque-sensing driving pulley, and microprocessors, and sensors. With these components, the advanced technology has the power to handle powerful engines and provide quicker acceleration while maintaining superior fuel efficiency.
The Mitsubishi Lancer and the Honda Civic Hybrid are two popular Indian cars that are driven by continuously variable transmission.
CVT enables easy, quick, and efficient change in gear ratios between maximum and minimum values. It enables the engine to run at its most efficient revolutions per minute (RPM) over a range of vehicle speeds. The system consists of a high-power rubber belt, a hydraulically operated driving pulley, a mechanical torque-sensing driving pulley, and microprocessors, and sensors. With these components, the advanced technology has the power to handle powerful engines and provide quicker acceleration while maintaining superior fuel efficiency.
The Mitsubishi Lancer and the Honda Civic Hybrid are two popular Indian cars that are driven by continuously variable transmission.
Automated Manual Transmission (AMT)
Automated manual transmission technologically combines the special characteristics of manual as well as automatic transmission. This works similar to the functioning of the manual transmission with the only difference that it does not require clutch actuation. The system is controlled electronically or using hydraulic system.
The key advantage of automated manual transmission is to make gear shifting smoother and quicker. It also helps improve drivability and prevents interruption of torque delivered by wheels during shifting.
The key advantage of automated manual transmission is to make gear shifting smoother and quicker. It also helps improve drivability and prevents interruption of torque delivered by wheels during shifting.
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