Simultaneous Driving and Charging of Electric Cars: Debunking Myths and Exploring Possibilities

Electric cars have revolutionized the automotive industry, offering a clean and sustainable alternative to traditional gasoline-powered vehicles. However, one question that often arises is whether it is possible to drive and charge an electric car at the same time. This article delves into the intricacies, addressing myths and exploring real-world possibilities.

Charging vs. Driving: Understanding the Limitations

One common misconception is that using a standard J1772 charger while driving is feasible. The J1772 standard ensures that the vehicle can only move a few millimeters, meaning it is not designed for real-time charging during operation. In reality, the charging current actually supplies the motor, making it impossible to charge and drive simultaneously with a standard setup.

Regenerative Braking: An Efficient, but Inefficient, Method

Regenerative braking, a mechanism that converts the kinetic energy of the vehicle back into electrical energy stored in the battery, is often mistakenly considered a solution. However, regenerative braking does not entirely compensate for the energy used during driving. Kinetic energy is not converted back to electrical energy perfectly due to inefficiencies in the conversion process. Thus, regenerative braking is a helpful feature but not a substitute for real-time charging.

Emerging Solar Panel Technology

Several car manufacturers, such as Aptera, Lightyear, and Sono, are incorporating solar panels into their electric vehicles. These panels can indeed charge the vehicle when parked, but their contribution is limited. The energy stored in solar panels is primarily used to keep the car's lights and accessories running, making it a supplementary power source rather than a significant charging method during driving.

Charging Infrastructure: A Moving Target

While real-time in-motion charging is not common yet, advances in technology are pushing the boundaries. For instance, electric highways, such as the one in Germany, are being tested for heavy-duty trucks. These infrastructure developments aim to provide charging facilities as vehicles drive, potentially revolutionizing the way electric vehicles are used in the future.

Conclusion: Balancing Efficiency and Reality

The idea of driving and charging an electric car simultaneously is a fascinating one, but it is currently constrained by technological limitations. Regenerative braking and solar panels provide valuable contributions, but they are not substitutes for real-time charging. As technology advances, we may see more efficient and practical solutions emerge, making it easier to charge while driving. Stay tuned for the future developments in electric vehicle technology and charging infrastructure.

Key Learnings:

Standard J1772 chargers do not allow real-time charging while driving. Regenerative braking helps recover some energy but does not fully compensate for driving energy usage. Solar panels can charge cars when parked, though their impact on driving energy is limited. Emerging technologies like electric highways may provide in-motion charging solutions for the future.