The first thing a car needs to be smart is to understand its environment. For that it needs senses. In an inanimate object, that translates into sensors and cameras.

How Aptiv Plans to Make Cars Better to Drive, Prettier, and Easier to Build Urban hands-free driving, a much-needed replacement for ugly ultrasonic parking sensors, and a fresh take on electrical ...

Tesla’s sensor suite includes eight cameras, 12 ultrasonic sensors, and a forward-facing radar unit. Famously, it does not include a laser-enabled lidar unit, which some believe is the key to ...

Example: Ultrasonic Sensor Interface for Automotive Applications A good illustration of an ultrasonic system is one for park assist or blind-spot detection.

Until now, the standard model for autonomous cars has used some combination of four kinds of sensors — video cameras, radar, ultrasonic sensors and lidar.

Ultrasonic Sensors: A Smart Choice for Shorter-Range Applications (.PDF Download) Ultrasonics refers to signals that are above the human hearing span (>20 kHz), and usually in the 40- to 70-kHz range.