Automobile wireless charging position detecting device and detecting method thereof

Abstract

The invention discloses an automobile wireless charging position detecting device and a detecting method thereof. The position detecting device is provided with four induction regions, and each induction region is provided with an induction coil; the two induction coils in the two induction regions arranged at any opposite angles are opposite in winding direction, the two induction coils are connected in series to form a coil set and then electrically connected with a voltage detecting device for detecting positive and negative poles of voltage, and the voltage detecting device is connected with a master control system. The detecting method on the basis of the device comprises the steps that after an automobile stops stably, the voltage detecting device detects voltage generated by each pair of coil set, and the master control system judges the deviation direction between a transmitting end and a receiving end according to the voltage generated by each pair of coil set. According to the automobile wireless charging position detecting device and the detecting method thereof, on the basis of the electromagnetic induction phenomenon, the four induction coils are adopted, the relativedeviation direction between the transmitting end and the receiving end is judged by detecting the voltage generated by the series circuit of the angular induction coils, and the device has the advantages of being simple in structure, low in cost and high in detection precision.

Description

technical field [0001] The invention relates to the field of wireless charging, in particular to a wireless charging position detection device and a detection method thereof. Background technique [0002] Electromagnetic induction wireless charging has been widely used in electric vehicles, electronic equipment and other fields. The relative position between the energy transmitting coil and the receiving coil in this charging mode has a serious impact on the efficiency of power transmission. Generally, the greater the coupling coefficient between the two coils, the higher the efficiency of transmitting electric energy. However, the different relative positions of the coils will cause a large difference in the coupling coefficients of the two coils, resulting in a sharp change in efficiency. At present, the wireless charging of electric vehicles is limited by the charging distance, and the charging range is about ±10cm. This range is a relatively big challenge for parking c...

AI Technical Summary

Problems solved by technology

At present, the wireless charging of electric vehicles is limited by the charging distance, and the charging range is about ±10cm. This range is a relatively big challenge for parking charging, so a special system is needed to indicate whether the electric vehicle is aligned with the transmitter, and the location information Feedback to the electronic system of the car

At present, the position detection on the car is mostly realized by means of ultrasonic and RF communication, the system is relatively complicated, and the detection accuracy is poor

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