Fuel saving technologies

According to data from the US Energy Research Agency, recently developed technologies can help save about 25% so as not to affect performance.

7 fuel saving technologies on cars

1. Start-Stop system

On the Hybrid vehicle, the Start-Stop includes a gasoline engine, an electric motor and a generator, a battery-powered battery. When braking, the kinetic energy is converted into electricity by the transmitter and then charged to the battery. This energy is used to maintain the load equipment and start the internal combustion engine. If the engine stops for a long time, the gasoline engine can return to work.

Select Start-Stop mode on BMW (A-shaped image with brackets).Below is the normal start button.

Of course because of the price and weight factor, not all cars have this system in full.The I-Stop technology on Mazda cars is simply to bring the piston to the easiest position to start when the engine is turned off. The piston is in a state where the mixture of air (gas and air) is ready to ignite. When the machine restarts it will not take much time and capacity. Mazda says the car starts faster than 0.35 seconds, fuel economy is about 10%.

2. Variable cylinder control system

V6 engines can only work with 4 or 3 cylinders to reduce 8 - 25% of fuel consumption.

At a load of 30% of the maximum capacity, on full throttle engines are almost completely closed. This interferes with the air supply to the cylinders. Lack of air, reduced pressure and reduced temperature make combustion less efficient, low thermal efficiency.

Instead of letting the scramble for a small amount of gas, the variable cylinder control technology will let some machines stop working for the remaining cylinders. Some more gas-fired combustion chambers increase compression pressure, thus improving thermal efficiency. According to calculations, the amount of fuel consumed may be reduced by 8-25% when vehicles run on the highway.

On working cylinders, exhaust valves and closed loads, the air mixture in the combustion chamber is isolated from the outside. At this point, they act like a spring. It will be compressed when the piston goes from the lower dead point (DCD) to the upper dead point (DCT), and expand in the opposite journey from DCT to DCD. The air mass expansion process creates an overall balance, while not causing load for the engine.

The oil pressure inside the hydraulic unit allows the camshaft to act or not to affect the valve.

The state transition is performed by synchronizing the ignition system, the gas distribution system and the throttle position. The best example for this technology is the large V12 engine with only 6 cylinders working when the load is low.

3. Direct injection of gasoline

Better engine performance when the combustion process is perfect. One of the key factors affecting this process is the evaporation and mixing of gasoline with air . The mixing process is better when gasoline is applied directly to each cylinder at high pressure.

According to Kia's communications director, along with some other key technologies, the direct injection system contributes to Kia Optima to achieve the best consumption on the highway with a 4-cylinder engine model. 2.4 liter area.

4. Intelligent generator

Hyundai is proud of its intelligent generator technology. The system has the function of selecting the optimal charging time for batteries. When decelerating the charging process is activated, while pedaling, all power will be accumulated for acceleration.

Derek Joyce, from the Korean automaker's media division, said the smart transmitter limits the factors that interfere with the charging process and reduces 1.5 to 2% of fuel consumption.

5. Power steering assistance

More and more automobile manufacturers want to use electronic driving power . Traditional hydraulic support always requires maintaining oil pressure at a certain level in the system. The engine is always subjected to additional load from the power steering pump. Meanwhile, the electric assist only fits when the drive system requires, besides it is lighter than the hydraulic system. Chevrolet said that this system helps the Malibu Eco reduce 2.5% of fuel consumption.

" Power steering is an example of how improving the system is not only beneficial for many customers," said GM global vehicle management manager Mark Meyers. He added that by the end of 2013 half of Chevrolet, Cadillac, Buickand GMC cars will be equipped with power steering power systems.

6. Button Econ

Future models will likely have a few more buttons on the dashboard that will allow them to travel more kilometers with the same liter of gasoline. When activated, Econ will alter the reaction curve of the throttle valve (throttle) in the range of 10 to 80% of the gas pedal.

Econ button on Honda Civic

The transmission ratio decreases, the throttle opening process increases in this range of activities. Thereby limiting the peak state causing waste of fuel.

Econ will also change the operation of the speed control system, regulating the speed and temperature of the installation because of the need for fuel conservation.

According to Chris Martin of Honda's public relations department, the Econ function will be equipped on the Honda CR-V 2012. Chevrolet to Hyundai is also using Econ in reducing engine speed and fuel economy.

7. Low rolling resistance tires

Low rolling resistance tires help reduce energy consumption due to friction between the tire and the road surface. Recently, Mazda has also started using this tire for Skyactiv Mazda3 cars. This may be a result of efforts to cut fuel consumption.