Mobile vehicle and wireless power transfer system

• Main Author: Kanno, Hiroshi
• Format: Patent
• Language: English
• Published: 05.05.2020
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERATION; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSPORTING; VEHICLES IN GENERAL

A mobile vehicle wirelessly receives AC power from a power transmission device including first and second power transmission electrodes arranged along a road surface. The mobile vehicle includes: a sensor that detects an obstacle located at least either on a route of the mobile vehicle or under the mobile vehicle; a first power reception electrode that forms electric field coupling with the first power transmission electrode when facing the first power transmission electrode; a second power reception electrode that forms electric field coupling with the second power transmission electrode when facing the second power transmission electrode; an actuator that moves at least the part of the first power reception electrode in a direction of gravity; and a control circuit that controls the actuator based on a result of detection by the sensor to avoid contact between the first power reception electrode and the obstacle.