Active Safety, Pre‐Collision Safety, and Other Safety Products (Millimeter‐Wave Radar, Image Recognition Sensors)

Abstract

Abstract Controls that support safe driving and help to alleviate damage in the event of a collision can be categorized in accordance with the driving scenario and degree of risk. These categories include driver assistance, active safety, precrash safety (PCS), and passive safety systems, as well as technologies for enhancing safety after the collision has occurred. Various driver assistance systems for providing information and alleviating driver burden in normal driving have been developed. These include adaptive front‐lighting systems (AFS), night vision, and back guide monitors that support the driver's field of view, corner sonar, and tire pressure monitoring systems for notifying the driver of potential danger, as well as adaptive cruise control ( ACC ) and lane keeping assistance systems ( LKAS ) for alleviating driver burden. Active safety systems have been developed to assist driver operation when a potentially dangerous situation can be avoided. These include brake controls such as anti‐lock brake systems ( ABS ), traction control systems ( TCS ), and electronic stability control ( ESC ), in addition to other active safety technologies. Some PCS systems also help to alleviate damage in more dangerous situations when the collision is unavoidable. Passive safety technologies are deployed in the event that an accident occurs. These include airbags for protecting the occupants of the vehicle, and fuel cut and emergency notification systems that aim to facilitate rescue after the accident. Developers are continuing to optimize driver assistance technologies in accordance with the situation by creating seamless combinations between safety systems with the ultimate goal of reducing traffic accident fatalities and injuries to zero. This chapter describes active safety systems and PCS , and the millimeter‐wave radar and image recognition sensors used in these systems.