The Revolutionary Impact of Electric Vehicles (EVs) on Automotive Suspension Technology

Mahmoodreza, Researcher, and Alireza Masrour, General Partner, Plug and Play Tech Center

Mahmoodreza Forootan is a Ph.D. graduate from the Sharif University of Technology, renowned as one of Iran's foremost technical institutions. His research has centered on implementing cyberphysical systems in manufacturing technology, resulting in multiple papers addressing cyberphysical systems, virtualization, intelligent data fusion, and multibody dynamics. Proficient in mechanical engineering, Mahmoodreza's expertise spans various domains, including design, manufacturing, cyberphysical systems, mechatronics, robotics, control, and artificial intelligence. His practical experience includes a tenure at a prominent locomotive and brake company.

The world of automotive technology is evolving rapidly, and electric vehicles (EVs) are at the forefront of this transformation. As the EV industry gains momentum, it brings exciting innovations. In this article, we will explore how EV’s unique characteristics drive changes in suspension technology. We'll also introduce some pioneering companies and startups that are pushing the boundaries of suspension technology.

What is suspension?

Suspension in a vehicle is a critical component that plays a pivotal role in ensuring a smooth and comfortable ride while contributing to the vehicle’s safety and control. It acts as a buffer between the vehicle's wheels and the rest of the car's body, absorbing the energy generated by various road imperfections and dissipating it.

What is active suspension?

Active suspensions, utilize advanced sensors and computer systems to continuously monitor the vehicle's motion and road conditions in real time. These systems make constant adjustments to the suspension settings, such as the spring stiffness and damping rate, to adapt to the ever-changing environment.

How Can the EV Industry Potentially Impact Suspension Technology?

The electric vehicle (EV) industry is poised to bring significant changes to suspension technology due to its unique characteristics and the need for energy efficiency.

Regenerative Suspension Technology

One exciting development in the EV industry is the concept of regenerative suspension technology. Similar to regenerative braking, where kinetic energy is captured and converted into electric energy during deceleration, regenerative suspension systems harnesses the energy generated by the suspension's movements. When a vehicle encounters bumps or uneven terrain, the motion of the suspension components generates kinetic energy. Through regenerative technology, this energy can be captured and converted into electric energy, which can then be stored in the vehicle's battery for later use.

A number of dynamic companies and emerging startups

Here are some important companies in active or regenerative suspension, along with brief descriptions of how their technologies work.

Levant Power

Levant Power, based in Massachusetts, is known for its GenShock technology, which is designed to improve vehicle fuel efficiency and ride quality. In regenerative modes, controlled damping is achieved by routing fluid from the damper through the valve to drive the pump and generator, generating electrical power. In the active modes, the pump is driven by electrical power to drive fluid and force the damper up or down.

ClearMotion

ClearMotion, located in Massachusetts, has developed a proactive ride system that utilizes predictive analytics and regenerative suspension technology to improve vehicle comfort and stability. Their system adapts to road conditions in real-time

ZF Friedrichshafen AG

sMOTION: Active Suspension System is a technology developed by ZF. It actively adjusts the vehicle's suspension to improve ride comfort and handling. It uses sensors to monitor road conditions and vehicle dynamics, making real-time adjustments to the suspension settings.

Gig Performance

Gig Performance is developing a regenerative shock absorber that uses a linear generator to convert suspension motion into electricity. The company is targeting off-road vehicles, such as sideby-sides and ATVs

Guident

Guident is a startup that develops a regenerative active suspension system that uses a mechanism to store energy. This energy can then power the suspension system or other vehicle systems.

Conclusion

In conclusion, the fusion of EVs and suspension technology represents an exciting frontier in the automotive industry. With the introduction of regenerative suspension systems and the revival of active suspensions, the potential for enhanced energy efficiency, comfort, and performance in EVs is clear. As technology continues to advance, we will likely witness even more groundbreaking developments in the field of suspension, making EVs not only eco-friendly but also a thrilling embodiment of innovation and engineering excellence. The road ahead promises a smoother and more sustainable ride for EVs, further propelling the EV industry into the future.