Regenerative braking system in electric vehicles
Hello people. This article is about regenerative braking system in electric vehicles. The most noticeable difference between driving an electric vehicle and a conventional ICE vehicle is regenerative braking.
Regenerative braking means the electric motor is operated in reverse, thereby applying a braking force through electromagnetism. This recaptures some of the vehicle's kinetic energy by charging the battery. Some electric vehicle models have specific driving modes that incorporate varying levels of regenerative braking.
Regenerative braking modes vary with each vehicle make and model. For example, the Nissan Leaf provides three levels of regenerative braking modes. In all of these braking modes, the brake pedal is always available and operates the same way as in a conventional vehicle under emergency braking conditions.
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How does regenerative braking system work?
The electric motor in your hybrid or electric car runs in two directions. One to drive the wheels and move the car, and the other to recharge the battery. When you lift your foot off the accelerator pedal and onto the brake, the motor swaps directions and starts to put energy back into the battery.
When this process begins, you can feel the car start to slow down. It is a different sensation in each car that has this function, because manufacturers can program-in how much regenerative braking occurs when you lift off the pedal.
If you push the pedal hard enough then the hydraulic system will trigger to get you stopped quickly. Again, different cars will have different amounts of force on the pedal needed to get the brakes to kick in.
Regenerative braking doesn’t make electric vehicles more efficient as such but it makes them less inefficient. Theoretically, the most efficient way to drive any vehicle would be to accelerate to a constant speed and then never touch the brake pedal.
Since braking is going to remove energy and require you to input extra energy to get back up to speed, you would get your best range by simply never slowing down in the first place. But that is not practically possible. Since we need to brake often, regenerative braking is the next best thing. It takes the inefficiency of braking and simply makes the process less wasteful.
In addition to the regenerative braking system, all electric vehicles have conventional braking systems as regular vehicles do. These use metal discs, called rotors, that are located behind the wheels and which turn with them. When the driver presses the brake pedal, the pressure of hydraulic fluid squeezes metallic brake pads tightly against the rotors, and the resulting friction slows the car.
The amount of energy a regenerative braking system captures depends on several factors. The driver being one of the most important ones. It’s estimated that a system’s ability to capture energy can range from about 16 to 70 per cent.
The highest rates of return are achieved when drivers slow down well in advance. A driver who brakes at the last moment see the least amount of efficiency. It really is necessary to adjust your driving in an electrified vehicle if you want to get the most out of it.
Hope this article on Regenerative braking system in electric vehicles is useful to you. To see the list of top electric cars in India, please visit https://iwheels.co/blog/top-electric-cars/