HOW DOES REGENERATIVE BRAKING WORK?

AMPM Automotive • June 23, 2021

Regenerative Brakes Explained

Did you know that the first electric car was invented about the same time as the internal combustion engine?  Both were created in the 1870s, yet the gas-powered engine has become the automotive industry standard for the past century. Braking systems have been using the same friction based model, but engineers have developed a regenerative braking system for electric vehicles (EVs). Just like the electric vehicle itself, regenerative brakes are all about conserving energy. The kinetic energy lost when braking must be transferred and stored as energy for the vehicle’s battery. Regenerative brakes extend your electric vehicle’s range, as well as prevents brake repair needs.    

How Effective Are Regenerative Brakes

When we’re talking about the effectiveness of a regenerative braking system, we’re not just talking about its ability to slow down. Of course that’s important, but regenerative brakes are designed to capture as much of the kinetic energy that’s lost when a vehicle is in motion and then brakes. Typically that energy is lost as heat, but a regenerative braking system allows it to be stored and used by the EV’s battery. You can determine how effective the regenerative brakes are by calculating how the vehicle’s overall range is affected. 

What Affects Your Regenerative Brakes? 

The efficiency of regenerative braking systems are not all the same. The environment and the conditions in which they are driving will have a huge impact on its efficiency. For instance, it only makes sense that an EV will be more efficient in a city’s stop-and-go traffic because drivers are constantly braking, thereby directing energy back to the battery. On the open highway, a driver would only be using battery power. The type of terrain also matters since the amount of braking, and storing energy, will vary depending on how often you need to brake.      The size of the vehicle also has a huge impact on how effective the regenerative braking system will be. The larger the vehicle, the more kinetic energy is created by its moving and braking. Ultimately, the more efficient the regenerative brakes are at recapturing energy, the more effective it will be at expanding its range. Not all electric vehicles are the same, but they will generally recapture anywhere from 60% – 70% of the kinetic energy that would normally be lost. In addition to preserving or extending the electric vehicle’s range, regenerative braking systems are able to extend the lifespan of brake parts and avoid brake repairs. The amount of wear-and-tear on the regenerative braking system is minimal, when compared to a standard braking system. Just think of the regenerative brakes as a system that recycles and converts kinetic energy into power for the electric vehicle’s battery. 
February 19, 2025
1. Regular Oil Changes Why it matters: Oil lubricates the moving parts of your engine, reducing wear and tear. Over time, oil breaks down and gets dirty, which can strain your engine. How often: Typically, you should change your oil every 5,000 to 7,500 miles, but check your vehicle's manual as some newer cars might go up to 10,000 miles between changes. At AMPM Automotive: We use high-quality oils and filters to ensure your engine is in top condition. Book an appointment for your next oil change!  2. Check Your Tire Pressure Why it matters: Incorrect tire pressure can lead to poor fuel efficiency, uneven tire wear, and compromised safety. How often: Check your tire pressure at least once a month and before long trips. The correct pressure is usually found on a sticker inside the driver's door or in the car manual. At AMPM Automotive: We offer free tire pressure checks with any service to ensure your ride is safe and smooth.  3. Replace Air Filters Why it matters: A clean air filter ensures that your engine gets enough air for optimal combustion, which impacts performance and fuel economy. How often: Air filters should generally be replaced every 12,000 to 15,000 miles, but this can vary based on driving conditions. At AMPM Automotive: We check and replace air filters during routine maintenance to keep your engine breathing freely.  4. Battery Maintenance Why it matters: A failing battery can leave you stranded. Regular checks can extend battery life and prevent sudden breakdowns. How often: Inspect your battery every six months. Look for corrosion, loose connections, or signs of wear. At AMPM Automotive: We provide battery testing and replacement services to keep you powered up on the road.  5. Brake System Checks Why it matters: Your brakes are crucial for safety. Wear and tear can lead to reduced stopping power. How often: Have your brakes inspected at least once a year or if you notice any changes in braking performance. At AMPM Automotive: Our expert technicians will ensure your brakes are in top shape, providing peace of mind with every brake service. Conclusion Maintaining your car doesn't have to be a chore; it's about ensuring your safety and the longevity of your vehicle. Here at AMPM Automotive, we're committed to helping you keep your car in prime condition. If you have any questions about car maintenance or need to schedule a service, feel free to reach out to us. Safe driving!
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