How hybrid cars save fuel

Optimized departure mode

According to Associate Professor Dr. Dam Hoang Phuc (Hanoi University of Science and Technology), the hybrid car's starting mode allows the car to only draw power from the electric motor. When the car starts moving from a standstill, only the electric motor operates and the internal combustion engine remains at rest.

Depending on the driver's needs after the vehicle is in motion, the controller will indicate whether the internal combustion engine is running or not.

If you press the accelerator lightly, the electric motor will still operate separately to provide traction to the drive shaft to push the car forward.

If the accelerator pedal is pressed deeply, the controller will determine that the driver wants to accelerate quickly. At this time, the internal combustion engine will be activated and operate in combination with the electric motor.

When starting off, the hybrid vehicle will allow the driver to use pure electric mode.

In addition, when the driver puts the car in reverse at low speed and the hybrid battery system has enough power, the computer will allow the electric motor to operate alone without the need for the internal combustion engine.

In these modes, hybrid cars provide smoothness, aiming to help drivers move the car out of garages and apartment basements without making noise, as well as limit exhaust fumes that pollute the narrow garage space.

Boost mode combines 3 energy sources

Whenever the driver presses the accelerator pedal hard, the computer understands that the driver wants to accelerate. At this time, the hybrid car will supply power from the battery system to the electric motor, while the gasoline engine also operates in parallel.

While with traditional cars using internal combustion engines, when the driver wants to accelerate, the engine must operate at high rpm to increase torque, which will also increase fuel consumption.

The electric motor will help supplement power, helping the car quickly reach high speed.

Meanwhile, instead of using only an internal combustion engine, hybrid vehicles utilize energy from three different sources, including: an internal combustion engine, a hybrid battery, and an AC generator. This not only helps reduce the load on the internal combustion engine but also helps save fuel consumption.

In addition, the combination of multiple energy sources will give hybrid cars better acceleration, helping drivers quickly reach the desired speed without harming the engine.

Moving on the road will charge the reserve battery

The computer will then automatically adjust the power source when the vehicle moves on the road at a steady speed. Normally, the vehicle will use the energy source from the internal combustion engine, because the hybrid battery system has a quite limited capacity.

Most of the power is derived from the internal combustion engine when the vehicle is traveling on the road at a steady speed.

In addition to providing kinetic energy for the vehicle, the internal combustion engine also provides power for the generator and AC motor. The AC motor will support the internal combustion engine in providing power and fully charging the vehicle's battery, helping to limit fuel loss.

When decelerating, it will collect electricity to store electricity.

Unlike vehicles using traditional internal combustion engines, hybrid vehicles are equipped with a special braking system called regenerative braking.

True to its name, the regenerative braking system will utilize the inertia generated during deceleration to rotate the generator, thereby converting excess kinetic energy into electricity, helping to store electricity for the hybrid battery.

This will help with acceleration and starting, saving the vehicle from wasting power and fuel.

Source: https://xe.baogiaothong.vn/co-che-hoat-dong-giup-xe-hybrid-tiet-kiem-nhien-lieu-192240311160101662.htm