Electric vehicle charging network services

• US 9,476,725 B2
• Filed: 01/12/2015
• Issued: 10/25/2016
• Est. Priority Date: 01/09/2012
• Status: Active Grant

• Current Assignee: Karma Automotive LLC (Wanxiang Group Corporation)
• Original Assignee: Airbiquity Incorporated
• Inventors: Fisher, Sheldon, Zhade, Bheemrao
• Primary Examiner(s): Sweeney, Brian P
• Application Number:
  US14/594,923
• Publication Number:
  US 20150127248A1
• Time in Patent Office: 652 Days
• Field of Search: 701/117
• US Class Current: 1/1
• CPC Class Codes: B60L 2240/70 Interactions with external data bases, e.g. traffic centres
• CPC Class Codes: B60L 2240/72 Charging station selection relying on external data
• CPC Class Codes: B60L 53/62 in response to charging parameters, e.g. current, voltage or electrical charge
• CPC Class Codes: B60L 53/66 Data transfer between charging stations and vehicles
• CPC Class Codes: B60L 53/67 Controlling two or more charging stations
• CPC Class Codes: B60L 53/68 Off-site monitoring or control, e.g. remote control
• CPC Class Codes: B60L 58/12 responding to state of charge [SoC]
• CPC Class Codes: G01C 21/3415 Dynamic re-routing, e.g. recalculating the route when the user deviates from calculated route or after detecting real-time traffic data or accidents
• CPC Class Codes: G01C 21/3469 Fuel consumption; Energy use; Emission aspects
• CPC Class Codes: G01C 21/3484 Personalized, e.g. from learned user behaviour or user-defined profiles
• CPC Class Codes: G01C 21/3492 employing speed data or traffic data, e.g. real-time or historical traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle G08G1/0968
• CPC Class Codes: G06Q 10/047 Optimisation of routes or paths, e.g. travelling salesman problem
• 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 10/72 Electric energy management in electromobility
• 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

To provide remote services, including dynamic, interactive assistance to electric vehicle (EV) users, a central server is arranged for electronic communications with EVs (15) and with client devices (11). The server also communicates with at least one EV charging station network, which in turn communicate with individual charging stations (30). Remote services may include trip planning, locating charging stations, checking availability and suitability of charging stations, making reservations at charging stations, and updating plans en route. The server collects data from the EV and analyzes the data to determine various statistics. The system advises a user on readiness of the EV to complete a proposed trip before recharging the EV batteries. Client devices may include smart phones, computers, or a head unit in the EV. Application software programs are executable on the client devices to provide user interfaces for accessing the remote services and for communicating with the central server.

Claims

1. A computer-implemented method comprising the steps of:

providing a server computer;

coupling the server computer to a wireless network for wireless communications;

establishing a first communication session over the wireless network between the server computer and an electric vehicle (EV);

in the first communication session, acquiring trip data from the EV and determining a current charge level of the EV; and

in the server computer;

analyzing the acquired trip data and comparing results of the analysis to the current charge level of the EV to estimate a range;

receiving and storing input data defining a proposed trip using the EV, the proposed trip comprising at least a destination location, and optionally a series of one or more route points;

determining a proposed route to implement the proposed trip;

in the case that the estimated range is not sufficient to traverse the proposed route, identifying a charging station located proximate to the proposed route;

proposing a modified proposed trip to include a recharging stop at the identified charging station en route to the destination location;

establishing a second communication session over the wireless network between the server computer and a hand-held personal portable device;

in the second communication session, communicating the modified proposed trip to the hand-held personal portable device; and

in the hand-held personal portable device, displaying the modified proposed trip.

2. The computer-implemented method of claim 1 including:

providing an application program executable on the hand-held personal portable device, the application program operatively coupled to a user interface of the hand-held personal portable device and configured for interaction with the server computer over the wireless network; and

wherein

the input defining the proposed trip is entered using the user interface; and

the proposed modification of the proposed route is displayed on the user interface.

3. The computer-implemented method of claim 2 and wherein said identifying a charging station located generally along the proposed route includes, in the server computer, establishing a third communication session over the wireless network between the server computer and at least one charging station network to acquire current charging station information, and relaying the charging station information to the application program to display on the user interface of the hand-held personal portable device.

4. The computer-implemented method of claim 2 and further comprising:

estimating an arrival time of day (ETA) at the identified charging station;

in the server computer, communicating a reservation request to the identified charging station to recharge the EV, beginning at the ETA;

receiving a response to the request;

based on the response, automatically updating the proposed route to include a stop for recharging the EV at the identified charging station; and

communicating the updated proposed route to the hand-held personal portable device.

5. The computer-implemented method of claim 2 including, in the server computer:

selecting a charging station, based on its location and availability;

communicating with the charging station network to make a reservation for charging at the selected charging station on behalf of a user of the EV; and

communicating the reservation information to the application program to display in the user interface.

6. The computer-implemented method of claim 2 wherein analyzing the acquired trip data includes identifying patterns in the trip data that reflect correlation of energy usage to days of the week.

7. The computer-implemented method of claim 2 wherein analyzing the acquired trip data includes identifying patterns in the trip data that reflect correlation of energy usage to topological data.

8. A non-transitory computer readable memory storing instructions executable in a processor of a hand-held personal portable device, the portable device having a user interface including a display screen, and the portable device configured for communications over a wireless network, the instructions arranged for causing the processor to:

acquire and store trip data responsive to operation of an electric vehicle (EV);

determine a current charge level of the EV;

determine a current location of the EV;

transmit the driving data and the current charge level and the current location over a wireless communication link to a remote server for range analysis;

receive estimated range data based on the analysis over a wireless communication from the remote server; and

display the estimated range data on the display screen of the portable device.

9. The memory of claim 8 wherein the stored instructions further cause the processor to:

receive input defining a proposed trip for the EV, the proposed trip comprising at least a destination location, and optionally a series of one or more route points;

transmit the proposed trip over the wireless communication to the remote server for analysis relative to the estimated range data of the EV;

receive a proposed route to implement the proposed trip over the wireless communication from the remote server;

the proposed route including, in the case that the estimated range is not adequate to complete the proposed trip from the current location, a revised route that includes a recharging stop.

10. The memory of claim 9 wherein the stored instructions further cause the processor to acquire a reservation confirmation for the recharging stop from the remote server.

11. The memory of claim 9 wherein the stored instructions further cause the processor to program the revised route into a navigation system of the EV.

12. The memory of claim 9 wherein the stored instructions implement an interactive client application for use in a smartphone.

13. The memory of claim 12 wherein the stored instructions implements a screen display indicating a readiness status of the electric vehicle.

14. The memory of claim 12 wherein the stored instructions implements a screen display including icons corresponding to a variety of available user services and features.

15. The memory of claim 12 wherein the stored instructions implements a screen display to implement user specification of drive times.

16. The memory of claim 12 wherein the stored instructions implements a screen display to implement specification of drive times by day of the week.

17. The memory of claim 12 wherein the stored instructions implements a screen display to enable adding or programming a drive time.

18. The memory of claim 12 wherein the stored instructions is executable on a head unit of the EV or on a portable client device coupled to the EV to utilize a display screen of the head unit.

19. A computer-implemented method comprising the steps of:

providing a server computer;

arranging the server computer for wireless communications with a remote client device associated with an electric vehicle (EV), the wireless communications including communications to acquire trip data from the EV and to acquire a current charge level of the EV; and

in the server computer;

analyzing the acquired trip data and comparing results of the analysis to the current charge level of the vehicle to estimate a range;

reporting the estimated range to the remote client device via the wireless communications, and displaying the estimated range on a display screen of the client device.

20. The computer-implemented method of claim 19 wherein the remote client device comprises one of a group that includes a personal portable device, a vehicle head unit, and a computer.

21. The computer-implemented method of claim 19 wherein the acquired trip data includes a record for at least one trip taken by the EV, wherein the record includes a distance traveled by the electric vehicle, how much energy was used by the electric vehicle during the trip, and a time stamp indicating a date and time that the trip started and/or ended.

22. The computer-implemented method of claim 21 wherein the trip record includes at least one of a route, start and stop locations, way points, traffic data and topological data.

23. The computer-implemented method of claim 21 wherein the trip record includes at least one of weather conditions, temperature, traffic conditions and periodic speed readings.

24. The computer-implemented method of claim 21 wherein analyzing the acquired trip data to estimate a range includes taking into account current temperature at a current location of the EV.

25. The computer-implemented method of claim 21 wherein analyzing the acquired trip data to estimate a range includes taking traffic data into account.