Aligning and matching system and method for wireless charging of automobile

• US 10,427,549 B2
• Filed: 06/08/2018
• Issued: 10/01/2019
• Est. Priority Date: 01/20/2016
• Status: Active Grant

• Current Assignee: Xiamen Newyea Science And Technology Co., Ltd
• Original Assignee: Xiamen Newyea Science And Technology Co., Ltd
• Inventors: Yang, Ruicong, Lin, Guijiang, Liao, Jianping, Liu, Yushan, Shen, Binxu, Yang, Fengbing, Ren, Lianfeng
• Primary Examiner(s): Henze-Gongola, David V
• Application Number:
  US16/003,715
• Publication Number:
  US 20180290550A1
• Time in Patent Office: 480 Days
• CPC Class Codes: B60L 53/126 Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
• CPC Class Codes: B60L 53/37 using optical position determination, e.g. using cameras
• CPC Class Codes: B60L 53/39 with position-responsive activation of primary coils
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles

Abstract

A wireless charging receiver which includes a wireless receiving panel provided with a receiving coil, and an aligning detection module including a first magnetic sensor chip array and a first solenoid set, is disposed on the lower portion of an electric automobile. A wireless charging transmitter comprises a wireless transmitting panel provided with a transmitting coil, a matching detection module including a photosensitive chip array, a second magnetic sensor chip array and a second solenoid set, and a driving device used for driving the wireless transmitting panel to move, is disposed on the ground of a parking area. Magnetic sensor chips of the first magnetic sensor chip array and solenoids of the first solenoid set are disposed around the receiving coil. The wireless charging transmitter. The wireless transmitting panel is disposed on the driving device and is driven by the driving device to be moved and aligned.

Claims

1. An aligning and matching system for wireless charging of an automobile, comprising a wireless charging receiver disposed on a lower portion of an electric automobile and a wireless charging transmitter disposed on a ground of a parking area, wherein the wireless charging receiver establishes communication with the wireless charging transmitter within a certain distance, and wireless power transmission is started automatically;

the wireless charging receiver comprises a wireless receiving panel and an aligning detection module;

the wireless receiving panel is provided with a receiving coil, the aligning detection module comprises a first magnetic sensor chip array composed of a plurality of magnetic sensor chips and a first solenoid set composed of a plurality of solenoids for generating magnetic fields, and the magnetic sensor chips of the first magnetic sensor chip array and the solenoids of the first solenoid set are disposed around the receiving coil;

the wireless charging transmitter comprises a wireless transmitting panel, a matching detection module and a driving device for driving the wireless transmitting panel to move, wherein the wireless transmitting panel is provided with a transmitting coil, the matching detection module comprises a photosensitive sensor chip array composed of a plurality of photosensitive sensor chips, a second magnetic sensor chip array composed of a plurality of magnetic sensor chips and a second solenoid set composed of a plurality of solenoids for generating magnetic fields; and

the wireless transmitting panel is disposed on the driving device and is driven by the driving device to be moved and aligned.

2. The aligning and matching system for wireless charging of an automobile according to claim 1, wherein the first magnetic sensor chip array at least comprises four said magnetic sensor chips separately marked as a first magnetic sensor chip, a second magnetic sensor chip, a third magnetic sensor chip and a fourth magnetic sensor chip, and the first magnetic sensor chip, the second magnetic sensor chip, the third magnetic sensor chip and the fourth magnetic sensor chip are clockwise disposed around the receiving coil;

and the first solenoid set at least comprises four said solenoids separately marked as a first solenoid, a second solenoid, a third solenoid and a fourth solenoid, and the first solenoid, the second solenoid, the third solenoid and the fourth solenoid are separately spaced from the first magnetic sensor chip, the second magnetic sensor chip, the third magnetic sensor chip and the fourth magnetic sensor chip.

3. The aligning and matching system for wireless charging of an automobile according to claim 2, wherein the first solenoid and the third solenoid generate magnetic fields of a same polarity, the second solenoid and the fourth solenoid generate magnetic fields of a same polarity, and the first solenoid and the second solenoid generate magnetic fields of different polarities;

and the first magnetic sensor chip and the third magnetic sensor chip are used for detecting magnetic fields of a same polarity; and

the second magnetic sensor chip and the fourth magnetic sensor chip are used for detecting magnetic fields of a same polarity.

4. The aligning and matching system for wireless charging of an automobile according to claim 1, wherein the second magnetic sensor chip array at least comprises four said magnetic sensor chips separately marked as a fifth magnetic sensor chip, a sixth magnetic sensor chip, a seventh magnetic sensor chip and an eighth magnetic sensor chip, and the fifth magnetic sensor chip, the sixth magnetic sensor chip, the seventh magnetic sensor chip and the eighth magnetic sensor chip are clockwise disposed around the transmitting coil in sequence;

and the second solenoid set at least comprises four said solenoids separately marked as a fifth solenoid, a sixth solenoid, a seventh solenoid and an eighth solenoid, and the fifth solenoid, the sixth solenoid, the seventh solenoid and the eighth solenoid are separately spaced from the fifth magnetic sensor chip, the sixth magnetic sensor chip, the seventh magnetic sensor chip and the eighth magnetic sensor chip.

5. The aligning and matching system for wireless charging of an automobile according to claim 4, wherein the fifth solenoid and the seventh solenoid generate magnetic fields of a same polarity, the sixth solenoid and the eighth solenoid generate magnetic fields of a same polarity, and the fifth solenoid and the sixth solenoid generate magnetic fields of different polarities;

and the fifth magnetic sensor chip and the seventh magnetic sensor chip are used for detecting magnetic fields of a same polarity, the sixth magnetic sensor chip and the eighth magnetic sensor chip are used for detecting magnetic fields of a same polarity, and the fifth magnetic sensor chip and the sixth magnetic sensor chip are used for detecting magnetic fields of different polarities.

6. The aligning and matching system for wireless charging of an automobile according to claim 1, wherein the photosensitive sensor chip array at least comprises four said photosensitive sensor chips separately marked as a first photosensitive sensor chip, a second photosensitive sensor chip, a third photosensitive sensor chip and a fourth photosensitive sensor chip, and the first photosensitive sensor chip, the second photosensitive sensor chip, the third photosensitive sensor chip and the forth photosensitive sensor chip are disposed around the second magnetic sensor chip array and the second solenoid set.

7. The aligning and matching system for wireless charging of an automobile according to claim 1, wherein the driving device comprises a transverse and longitudinal rail, and the wireless transmitting panel is movably disposed on the transverse and longitudinal rail and is driven by the driving device to transversely and longitudinally move on the transverse and longitudinal rail.

8. The aligning and matching system for wireless charging of an automobile according to claim 1, wherein the driving device comprises a plurality of drive motors separately installed around the wireless transmitting panel.

9. An aligning and matching method for wireless charging of an automobile, comprising the following steps:

step 1, disposing a wireless charging receiver at a bottom of an electric automobile, and disposing a wireless charging transmitter on a ground of a parking area, wherein,

the wireless charging receiver comprises a wireless receiving panel and an aligning detection module, the wireless receiving panel is provided with a receiving coil, the aligning detection module comprises a first magnetic sensor chip array composed of a plurality of magnetic sensor chips and a first solenoid set composed of a plurality of solenoids for generating magnetic fields;

the wireless charging transmitter comprises a wireless transmitting panel, a matching detection module and a driving device for driving the wireless transmitting panel to move, the wireless transmitting panel is disposed on the driving device, the wireless transmitting panel is provided with a transmitting coil, the matching detection module comprises a photosensitive sensor chip array composed of a plurality of photosensitive sensor chips, a second magnetic sensor chip array composed of a plurality of magnetic sensor chips and a second solenoid set composed of a plurality of solenoids for generating magnetic fields, and the wireless transmitting panel is disposed on the driving device and is driven by the driving device to be moved and aligned;

the magnetic sensor chips of the first magnetic sensor chip array and the magnetic sensor chips of the second magnetic sensor chip array only allow magnetic force lines in a vertical direction to pass through, and the photosensitive sensor chips of the photosensitive sensor chip array only allow light in a vertical direction to pass through;

step 2, generating magnetic fields by the first solenoid set of the aligning detection module, and generating magnetic fields by the second solenoid set of the matching detection module;

detecting, by the photosensitive sensor chip array, whether or not light is shielded currently;

installing magnetic force line shielding devices on all said magnetic sensor chips, so that only magnetic force lines in the vertical direction are allowed to pass through the magnetic sensor chips;

detecting, by the second magnetic sensor chip array, the magnetic fields generated by the first solenoid set to judge whether or not the second magnetic sensor chip array is in one-to-one correspondence with the first solenoid set of the aligning detection module; and

detecting, by the first magnetic sensor chip array, the magnetic fields generated by the second solenoid set to judge whether or not the first magnetic sensor chip array is in one-to-one correspondence with the second solenoid set of the aligning detection module; and

step 3, driving the wireless transmitting panel to move by the driving device, and completing aligning when the magnetic sensor chips of the first magnetic sensor chip array are in one-to-one correspondence with the solenoids of the second solenoid set and the magnetic sensor chips of the second magnetic sensor chip array are in one-to-one correspondence with the solenoids of the first solenoid set.