Environmental perception technology is the core foundation for intelligent vehicles to achieve autonomous driving or assisted driving.As a crucial component of intelligent vehicles

sensors serve as the "sensory organs" of the environmental perception system.The key role of environmental perception sensor technology lies in its ability to perceive and identify environmental elements around the vehicle

provide essential data and enable intelligent decisionmaking

which plays a crucial role in advancing vehicle intelligence.In-depth study of environmental perception sensor technology for intelligent vehicles is carried out.The working principles

technical routes

and research hotspots of all types of mainstream sensors are analyzed in detail.Methods based on information fustion are studied to enhance the environmental perception capability of multi-sensor fusion technology.Perception and recognition are realized using fusion algorithms of multi-sensor fusion technology.Additionally

existing technical challenges are analyzed and corresponding strategies are proposed

which provide references for further advancements of intelligent vehicle environmental perception sensor technology.