Light Detection and Ranging, Autonomous‑driving perception sensor. Detects distance and contour of obstacles via laser emission for environment perception in ADAS systems.
Automotive LiDAR is core perception sensor for advanced‑driver‑assistance systems. Different from cameras and millimeter‑wave radars, LiDAR generates three‑dimensional point‑cloud data by laser time‑of‑flight measurement. It provides high‑precision distance and contour information of surrounding obstacles under complex lighting conditions, and becomes key hardware for high‑level NOA navigation‑assisted driving and automatic parking functions.
Top 10 Global Brands
Velodyne, Luminar, Innoviz, Bosch, Continental, Denso, Hesai, RoboSense, Livox, Aeva. Global LiDAR suppliers provide mechanical, semi‑solid‑state and solid‑state automotive‑grade LiDAR products for global OEM intelligent‑driving projects.
Top 10 Chinese Domestic Brands
Hesai Technology, RoboSense, Livox(DJI), BeiKe TianHui, Tudatong, Huawei, Wanji Technology, Leishen Intelligence, Leibo Optoelectronic, Yuanxiang Technology. Domestic LiDAR manufacturers achieve large‑volume mass‑production delivery for Chinese new‑energy‑vehicle high‑end intelligent‑driving platforms.
Structural Composition
Automotive LiDAR assemblies include laser transmitting modules, photoelectric receiving detectors, optical lens groups, scanning mechanism (mechanical / semi‑solid‑state / solid‑state), signal‑processing ASIC chip, internal temperature‑control unit, protective housing and vehicle‑communication interfaces. Laser beams are emitted towards surroundings, reflected echo signals are received. Time‑of‑flight calculation acquires obstacle distance and contour information.
Application
Autonomous‑driving perception sensor. Detects distance and contour of obstacles via laser emission for environment perception in ADAS systems. It outputs three‑dimensional point‑cloud data to realize obstacle detection and lane‑boundary recognition, supporting ACC adaptive cruise and NOA high‑level navigation‑assisted driving functions.
Manufacturing Challenges
Ultra‑high alignment precision between transmitting and receiving optical paths is required. Photodetector demands high sensitivity and signal‑to‑noise ratio. Mechanical‑scanning LiDAR units resist severe vehicle vibration and shock. Optical‑system thermal drift must be suppressed under wide‑temperature‑range working conditions. Point‑cloud‑output consistency is tightly controlled. Sensors resist strong sunlight optical interference. ISO 26262 functional‑safety requirements for automotive safety components shall be fulfilled. Mass‑production cost control represents another major challenge.
Required Quality Documents
IATF16949 certification, full‑set PPAP documents, DFMEA / PFMEA risk‑analysis report, ISO 26262 functional‑safety assessment report, high‑low‑temperature optical‑performance test report, vibration‑shock endurance report, strong‑light anti‑interference test report, IP‑protection‑grade verification report, EMC test report and IMDS material‑data sheet.
Impact on Vehicle Performance
LiDAR serves as critical perception hardware for high‑level ADAS. Point‑cloud distortion and abnormal ranging cause obstacle missing‑detection or false‑detection, directly degrading reliability of NOA and automatic‑parking functions. LiDAR failure triggers intelligent‑driving‑function deactivation. Reliable LiDAR compensates camera perception weaknesses under harsh illumination conditions and greatly improves whole‑vehicle ADAS system safety.