Control device for non-contact coil rotation in electric vehicles

Abstract

The invention provides a control device for rotation of non-contact coils of an electric vehicle. The device includes a charging pile control unit and a vehicle-mounted control unit, the charging pilecontrol unit includes a charging pile controller, a first detection hemisphere surface, a first rotation driving device, non-contact charging primary-side coils, a non-contact charging pile primary-side circuit and a first wireless module, and multiple detecting inductive coils are laid on the outer surface of the first detection hemisphere surface; the vehicle-mounted control unit includes a vehicle-mounted controller, a second detection hemisphere surface, a second rotation driving device, non-contact charging secondary-side coils, a non-contact charging secondary-side circuit and a secondwireless module, and multiple receiving inductive coils are laid on the outer surface of the second detecting hemisphere surface. By detecting the maximum transmission voltage of the detecting inductive coils and the receiving inductive coils at different bearings and utilizing the spatial relative bearings and the included angles of the coils to achieve automatic aligning of the non-contact charging primary-side coils and the non-contact charging secondary-side coils, the maximization of transmission power is ensured.

Description

technical field [0001] The invention relates to the technical field of non-contact power supply and automatic control, in particular to a control device for non-contact coil rotation of electric vehicles. Background technique [0002] The charging management of the traditional power supply method of electric vehicles is a labor-intensive task. Before charging, it is necessary to connect the charging pile to the car with a power supply cable. If you forget to connect the power supply cable, it will affect the next trip. Especially in rainy and snowy weather, the plug of the outdoor power supply cable is wet, and there is a risk of electric shock when connecting the power supply cable. Compared with traditional power supply methods, the superiority of non-contact charging technology is obvious. The power supply coil is installed under the ground of the parking space, and the non-contact charging circuit can automatically determine whether to provide power to the power receivi...

AI Technical Summary

Problems solved by technology

None of these positioning methods can accurately locate the relative spatial positions of the primary and secondary coils of the non-contact power supply system.

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