Is Regeneration Possible in EVs, Yes......??

Is Regeneration Possible in EVs, Yes......??

Is it the case, that there is no FREE energy.

Certainly, thermodynamic laws have a godly place in physics and chemistry.

We all might have thought or tinkered with dynamos, solar modules and even piezo crystals for generating electricity. (With a fantasy of building a FREE Energy device like Arc reactor or something equivalent)

But what about using the lost energy and utilising it for better overall efficiency.

Sounds great, right...? Yes, that possible.

Lets explore more on the methods which are possible for regeneration or getting back most of lost energy:

  • Regenerative braking: Regenerative braking is a common method employed in EVs to capture and store energy that is typically lost as heat during braking.

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When the driver applies the brakes, the electric motor in the vehicle operates as a generator, converting the kinetic energy of the moving vehicle into electrical energy. This electrical energy is then fed back into the battery for storage, increasing the overall efficiency of the vehicle and extending its driving range.

  • Regenerative coasting: In addition to regenerative braking, some EVs also employ regenerative coasting. When the driver releases the accelerator pedal, the motor switches to generator mode, converting the vehicle's kinetic energy into electrical energy. This energy is then used to recharge the battery instead of dissipating it as heat through the conventional braking system. Regenerative coasting helps maximize the energy recovery during deceleration or when driving downhill.
  • Regenerative suspension: Regenerative suspension is an emerging technology that aims to capture energy from the vertical motion of the vehicle's suspension system.


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As the vehicle encounters bumps or road irregularities, the regenerative suspension system converts the kinetic energy generated by the suspension movement into electrical energy. This energy can be stored in the battery and used to power various vehicle systems, reducing the overall energy consumption of the EV.

  • Photovoltaic (PV) solar panels: Some EV manufacturers are incorporating solar panels into the vehicle's design to capture solar energy and convert it into electrical energy.

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These solar panels are typically integrated into the roof, hood, or other parts of the vehicle. While the energy generated by the solar panels is relatively small compared to the overall energy requirements of the vehicle, it can contribute to the charging of auxiliary systems, such as ventilation, lighting, or battery management.

  • Thermoelectric generators: Thermoelectric generators (TEGs) are devices that convert waste heat into electricity through the Seebeck effect. In EVs, TEGs can be integrated into the exhaust system or other heat-producing components to capture and convert the thermal energy into electrical energy.

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This regenerative method allows for the recovery of waste heat and increases the overall energy efficiency of the vehicle.

  • Kinetic energy recovery systems (KERS): KERS technology is primarily utilized in hybrid electric vehicles (HEVs) and Formula 1 race cars but can also be applied in EVs.

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KERS systems capture and store the kinetic energy generated during braking or deceleration and convert it into electrical energy. This energy is then stored in the battery or used to provide an additional power boost when needed, enhancing the vehicle's performance and efficiency.

  • Inductive charging: Inductive charging, also known as wireless charging, enables the transfer of electrical energy from a charging pad on the ground to the vehicle without the need for physical contact. Some EVs are equipped with inductive charging technology, allowing them to charge wirelessly by parking over a charging pad.

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This regenerative method simplifies the charging process and ensures efficient energy transfer between the charging infrastructure and the EV.

  • Range Extenders: Range extenders are small internal combustion engines (ICEs) or microturbines that act as supplementary power sources in certain types of EVs, known as extended-range electric vehicles (EREVs). The range extender does not directly drive the wheels but operates as a generator to produce electricity, which charges the EV's battery. This regenerative method increases the driving range of the vehicle and provides an alternative to solely relying on battery power.
  • Piezoelectric technology: Piezoelectric materials generate an electric charge when subjected to mechanical stress or vibrations.

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In the context of EVs, piezoelectric technology can be employed in the suspension system or road surface to capture the vibrations and convert them into electrical energy. This regenerative method harnesses the energy from the vehicle's motion and road conditions, contributing to the overall energy efficiency of the EV.

  • Wind regenerative systems: Wind regenerative systems utilize the airflow generated while driving to capture energy. These systems can incorporate small wind turbines or air deflectors that generate electricity by harnessing the wind's kinetic energy.

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Meet Eolo, A Wind Powered EV

The captured energy is then stored in the vehicle's battery, providing an additional source of regenerative power.

  • Regenerative shock absorbers: Regenerative shock absorbers, also known as energy-harvesting or regenerative dampers, convert the vertical motion and vibrations generated by the suspension system into electrical energy. These devices use electromagnetic or hydraulic mechanisms to capture and convert the mechanical energy into electrical energy, which can be stored in the battery or used to power auxiliary systems in the vehicle.
  • Hydroelectric regenerative systems: Hydroelectric regenerative systems utilize the flow of water or other fluids to generate electricity. In some EVs, this method is employed by incorporating turbines or turbines in the wheels or other areas where fluid flow is present. As the fluid flows through the system, it drives the turbine, which generates electrical energy that can be stored and utilized by the vehicle.
  • Regenerative Tires: Regenerative tires are designed with special materials or structures that can harvest energy from the flexing and deformation that occurs while driving.

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Regen Tires By Good Year Brand

These tires utilize piezoelectric or electromagnetic technology to convert the mechanical energy into electrical energy, which can be fed back into the vehicle's electrical system.

  • Solar Roadways: Solar roadways involve embedding solar panels or photovoltaic cells into the surface of roadways.

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These solar panels capture sunlight and convert it into electrical energy, which can be used to power streetlights, traffic signals, or even directly charge EVs as they drive over the solar roadway surface. This regenerative method takes advantage of existing infrastructure to generate renewable energy for vehicles.

  • Energy recovery from vibrations and noise: Researchers are exploring technologies that can capture and convert vibrations and noise generated by the vehicle into usable energy. This includes systems that use piezoelectric materials or other energy-harvesting mechanisms to transform the mechanical energy produced by vibrations or noise into electrical energy.

These regenerative methods demonstrate the diverse range of approaches being explored to maximize energy efficiency and sustainability in electric vehicles.

These methods help optimize the efficiency of EVs by recovering and storing energy that would otherwise be wasted. By utilizing these technologies, EVs can extend their driving range and reduce their reliance on external charging sources, making them more sustainable and cost-effective. As technology advances, the integration of these methods in EVs has the potential to further optimize their energy usage and reduce their environmental footprint.

Looking forward to learn and share more.

#electricvehicles #batteries #energy #evega #power #science #technology

James E. Brennan

Senior Electrical Engineer - Freelance

1 年

I was going say something about regenerative breaking in cranes but you covered it really well already.

Shrimangalesh ??

Trainee Engineer @Vatio || ElectricVehicle?? || Embedded System || Renewable Energy || I bring Ideas to reality and designs to functionality

1 年

Its Very useful sir .thank you sir.

Vivek K.

Troubleshooting Engineer

1 年

Yes we can ,but regeneration possible up to some extent

CHESTER SWANSON SR.

Next Trend Realty LLC./wwwHar.com/Chester-Swanson/agent_cbswan

1 年

Thanks for Sharing.

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