What is the purpose of electromagnetic suspension?
2 Answers
Electromagnetic adjustable suspension is a type of suspension system that utilizes electromagnetic reactions to achieve changes in the height of the vehicle chassis. It can respond in an extremely short time to suppress vibrations and maintain body stability. This advantage is particularly evident in relatively extreme conditions, such as encountering sudden bumps during high-speed driving, where the electromagnetic suspension's response speed can be significantly faster than that of traditional suspension systems. Below is an introduction to electromagnetic suspension: 1. Advantages: The system features a simple structure, extremely low power consumption, a wide range of controllable stress, and enables instantaneous and precise control of damping force. It is also insensitive to impurities, has a broad operating temperature range, and can function between -50°C to 140°C. Electromagnetic suspension can be directly powered by ordinary low-voltage power sources, avoiding the dangers and inconveniences associated with high-voltage power supplies. Compared to traditional vehicle shock absorbers, it has significantly fewer moving parts, almost no collisions, resulting in lower noise levels. 2. Disadvantages: Poor load-bearing performance, weaker anti-roll capability, inferior shock absorption performance, and limited comfort.
Electromagnetic induction suspension is essentially a system that adjusts suspension stiffness in real-time using electromagnetic fields. I've experienced a car equipped with this technology, and the most noticeable difference is that when going over speed bumps, instead of bouncing twice with a 'thud,' it feels like the tires are 'glued' to the ground as they roll over. When taking mountain roads and corners, body roll is significantly reduced, and the steering feels more solid. The principle relies on electromagnetic coils controlling the arrangement density of metal particles, with reaction speeds dozens of times faster than traditional hydraulic systems. However, the maintenance cost for this type of suspension is quite high—a friend recently spent nearly twenty thousand to replace a single shock absorber. It’s indeed comfortable for daily city driving, but if you're serious about off-roading, mechanical suspension is still the better choice.
