MULTI-MODE RECHARGEABLE ELECTRIC VEHICLE

• US 20170136888A1
• Filed: 03/18/2016
• Published: 05/18/2017
• Est. Priority Date: 11/13/2015
• Status: Active Grant

• Current Assignee: NIO Technology Company Limited (Shanghai Anbin Technology Co., Ltd.)
• Original Assignee: NextEV USA, Inc.
• Inventors: Ricci, Christopher P.
• Granted Patent: US 10,183,584 B2
• Time in Patent Office: Days
• CPC Class Codes: B60L 5/005 without mechanical contact between the collector and the power supply line
• CPC Class Codes: B60L 5/42 for collecting current from individual contact pieces connected to the power supply line
• CPC Class Codes: B60L 53/12 Inductive energy transfer
• 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 53/32 by charging in short intervals along the itinerary, e.g. during short stops
• CPC Class Codes: B60L 53/63 in response to network capacity
• CPC Class Codes: B60L 53/64 Optimising energy costs, e.g. responding to electricity rates
• CPC Class Codes: B60L 53/65 involving identification of vehicles or their battery types
• CPC Class Codes: B60L 53/665 Methods related to measuring, billing or payment
• CPC Class Codes: B60L 55/00 Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
• CPC Class Codes: B60M 7/003 for vehicles using stored power (e.g. charging stations)
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• 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
• CPC Class Codes: Y02T 90/167 Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: Y04S 10/126 the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
• CPC Class Codes: Y04S 30/14 Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

A rechargeable electric vehicle comprises a power rectifier to convert alternating current electrical energy to direct current electrical energy; a power inverter to convert direct current electrical energy to alternating current electrical energy; a rechargeable energy storage for storing direct current electrical energy; and a coil. In a first mode, alternating current electrical energy is received by the coil and passed through the power rectifier to form direct current electrical energy for storage in the rechargeable energy storage. In a second mode, direct current electrical energy is passed through the power inverter to form alternating current electrical energy and the alternating current electrical energy is passed through the coil for wireless transfer, over an air gap, to a secondary coil.

Claims

1. A rechargeable electric vehicle, comprising:

a power rectifier to convert alternating current electrical energy to direct current electrical energy;

a power inverter to convert direct current electrical energy to alternating current electrical energy;

a rechargeable energy storage, in electrical communication with the power rectifier and power inverter, for storing direct current electrical energy; and

a coil in electrical communication with the power rectifier and power inverter, wherein;

in a first mode, alternating current electrical energy is received by the coil and passed through the power rectifier to form direct current electrical energy for storage in the rechargeable energy storage; and

in a second mode, direct current electrical energy is passed through the power inverter to form alternating current electrical energy and the alternating current electrical energy is passed through the coil for wireless transfer, over an air gap, to a secondary coil.

2. The vehicle of claim 1, further comprising:

a switch, in electrical communication with the power inverter, power rectifier, and rechargeable energy storage, to direct selectively the direct current electrical energy from the rechargeable energy storage through the power inverter to the coil and alternating current electrical energy from the coil through the power rectifier.

3. The vehicle of claim 2, further comprising:

a controller, in signal communication with the switch, to select between the first and second modes; and

a transceiver, in signal communication with the controller, to process a gating signal, the gating signal comprising a field indicating whether the vehicle will receive a charge from or provide a charge to a charging segment, the charging segment being located along a roadway traveled by the vehicle.

4. The vehicle of claim 1, further comprising:

a controller, in signal communication with the power inverter and power rectifier, to select between the first and second modes, wherein the controller selects between the first and second modes in response to one or more of an input from an on board sensor indicating a degree or level of direct current electrical energy stored in the rechargeable energy storage and a gating signal received from the charging segment, the gating signal comprising a field indicating whether the vehicle will receive a charge from or provide a charge to a charging segment, the charging segment being located along a roadway traveled by the vehicle.

5. The vehicle of claim 1, wherein the coil comprises a primary coil to operate in the second mode and a secondary coil to operate in the first mode.

6. A method, comprising:

in a first mode, converting, by a power rectifier, alternating current electrical energy received by a coil to direct current electrical energy for storage in rechargeable energy storage of a rechargeable electric vehicle; and

in a second mode, converting, by a power inverter, direct current electrical energy to alternating current electrical energy for wireless transfer, by the coil over an air gap, to a secondary coil.

7. The method of claim 6, further comprising:

controlling a switch to direct selectively the direct current electrical energy from the rechargeable energy storage through the power inverter to the coil and alternating current electrical energy from the coil through the power rectifier.

8. The method of claim 7, further comprising:

selecting, by a controller, between the first and second modes; and

processing, by a transceiver, a gating signal, the gating signal comprising a field indicating whether the vehicle will receive a charge from or provide a charge to a charging segment, the charging segment being located along a roadway traveled by the vehicle.

9. The method of claim 6, further comprising:

selecting, by a controller, between the first and second modes, wherein the controller selects between the first and second modes in response to one or more of an input from an on board sensor indicating a degree or level of direct current electrical energy stored in the rechargeable energy storage and a gating signal received from the charging segment, the gating signal comprising a field indicating whether the vehicle will receive a charge from or provide a charge to a charging segment, the charging segment being located along a roadway traveled by the vehicle.

10. The vehicle of claim 6, wherein a common coil acts as a primary coil in the second mode and as a secondary coil in the first mode.

11. A charging segment, comprising:

a power rectifier to convert alternating current electrical energy to direct current electrical energy;

a power inverter to convert direct current electrical energy to alternating current electrical energy; and

a coil in electrical communication with the power rectifier and power inverter, wherein;

in a first mode, alternating current electrical energy is received by the coil and passed through the power rectifier to form direct current electrical energy for supplying to a power grid; and

in a second mode, direct current electrical energy is passed through the power inverter to form alternating current electrical energy and the alternating current electrical energy is passed through the coil for wireless transfer, over an air gap, to a secondary coil of a rechargeable electric vehicle.

12. The charging segment of claim 11, further comprising:

a switch, in electrical communication with the power inverter, power rectifier, and the grid, to direct selectively the direct current electrical energy from the power grid through the power inverter to the coil and alternating current electrical energy from the coil through the power rectifier.

13. The charging segment of claim 12, further comprising:

a controller, in signal communication with the switch, to select between the first and second modes; and

a transceiver, in signal communication with the controller, to process a gating signal, the gating signal comprising a field indicating whether the rechargeable electric vehicle will receive a charge from or provide a charge to a charging segment, the charging segment being located along a roadway traveled by the rechargeable electric vehicle.

14. The charging segment of claim 11, further comprising:

a controller, in signal communication with a power inverter and power rectifier, to select between the first and second modes, wherein the controller selects between the first and second modes in response to one or more of an input from the rechargeable electric vehicle indicating a degree or level of direct current electrical energy stored in a rechargeable energy storage on board the rechargeable electric vehicle and a gating signal received from the rechargeable electric vehicle, the gating signal comprising a field indicating whether the rechargeable electric vehicle will receive a charge from or provide a charge to a charging segment.

15. The charging segment of claim 11, wherein the coil comprises a primary coil to operate in the second mode and a secondary coil to operate in the first mode.

16. A method, comprising:

in a first mode, converting, by a power rectifier, alternating current electrical energy to direct current electrical energy for supplying, by a coil, to a power grid;

in a second mode, converting, by a power inverter, direct current electrical energy received from the power grid to alternating current electrical energy for wireless transfer, by the coil over an air gap, to a secondary coil of a rechargeable electric vehicle.

17. The method of claim 16, further comprising:

controlling a switch to direct selectively the direct current electrical energy from the power grid through the power inverter to the coil and alternating current electrical energy from the coil through the power rectifier.

18. The method of claim 16, further comprising:

selecting, by a controller, between the first and second modes; and

processing, by a transceiver, a gating signal, the gating signal comprising a field indicating whether the rechargeable electric vehicle will receive a charge from or provide a charge to a charging segment, the charging segment being located along a roadway traveled by the rechargeable electric vehicle.

19. The method of claim 16, further comprising:

selecting, by a controller, between the first and second modes, wherein the controller selects between the first and second modes in response to one or more of an input from the rechargeable electric vehicle indicating a degree or level of direct current electrical energy stored in a rechargeable energy storage on board the rechargeable electric vehicle and a gating signal received from the rechargeable electric vehicle, the gating signal comprising a field indicating whether the rechargeable electric vehicle will receive a charge from or provide a charge to a charging segment.

20. The method of claim 16, wherein a common coil acts as a primary coil in the second mode and as a secondary coil in the first mode.