ULTRASONIC AND INFRARED OBJECT DETECTION FOR WIRELESS CHARGING OF ELECTRIC VEHICLES

摘要

A wireless battery charging system for an electric vehicle can include a transmitter assembly configured to send a charging signal to a vehicle, an ultrasonic sensor configured to sense an unwanted object adjacent the transmitter assembly, and an infrared sensor configured to sense an unwanted object adjacent the transmitter assembly. The transmitter assembly includes a primary coil. The infrared sensor and the ultrasonic sensor can sense at least partially overlapping regions to sense an unwanted object in a coil region between the primary coil and a secondary coil of the vehicle.

主权项

1. A charging system comprising:
a transmitter assembly, including a primary coil, configured to send a charging signal to a vehicle; a sensor arrangement including first and second ultrasonic sensor arrays partially defining a boundary of a transmitter coil region adjacent the primary coil; and an infrared sensor, the infrared sensor and ultrasonic sensor arrays being positioned such that same portions of the coil region are sensed by each of the sensor and arrays.