CAR-CHARGING SYSTEM

• US 20100271172A1
• Filed: 11/02/2009
• Published: 10/28/2010
• Est. Priority Date: 04/27/2009
• Status: Active Grant

• Current Assignee: Mitsubishi Electric Corporation
• Original Assignee: Mitsubishi Electric Corporation
• Inventors: TAKIKITA, Mamoru
• Granted Patent: US 9,553,724 B2
• Time in Patent Office: Days
• US Class Current: 340/5.800
• CPC Class Codes: B60L 2270/32 of electricity
• CPC Class Codes: B60L 53/305 Communication interfaces
• CPC Class Codes: H02J 7/00036 Charger exchanging data with battery
• CPC Class Codes: H02J 7/00045 Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries
• CPC Class Codes: H04L 2209/80 Wireless
• CPC Class Codes: H04L 2209/84 Vehicles
• CPC Class Codes: H04L 63/0492 by using a location-limited connection, e.g. near-field communication or limited proximity of entities
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 63/0853 using an additional device, e.g. smartcard, SIM or a different communication terminal cryptographic mechanisms or cryptographic arrangements for entity authentication involving additional secure or trusted devices H04L9/3234
• CPC Class Codes: H04L 9/32 including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
• 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

The car-charging system can charge only an authenticated car both in a public parking area and at home. The car-charging system is capable of charging a charge-accumulating device in the car to be charged through a power-supplying line from a power source outside the car, and is arranged to authenticate the car by means of communication between an authentication-managing device in a power-supplying device outside the car and a DSRC onboard device in the car. The authentication-managing device and DSRC onboard device each have a DSRC basic application software program implemented thereon.

Claims

1. A car-charging system, comprising:

a car to be charged;

a charge-accumulating device in the car;

a power-supplying device located outside the car and including a power source and an authentication-managing device; and

a DSRC (Dedicated Short Range Communication) onboard device put in the car,

wherein the charge-accumulating device can be charged through a power-supplying line from the power source outside the car, and

authentication of the car is performed by means of communication between the authentication-managing device and DSRC onboard device.

2. The car-charging system according to claim 1, wherein the authentication-managing device and DSRC onboard device each have a DSRC basic application software program implemented thereon, and

the application software program is used to perform authentication of the car.

3. The car-charging system according to claim 1, wherein the DSRC onboard device communicates with the authentication-managing device through the power-supplying line extending from the power source outside the car.

4. The car-charging system according to claim 1, wherein the DSRC onboard device communicates with the authentication-managing device through DSRC.

5. The car-charging system according to any one of claims 1 to 4, wherein the DSRC onboard device performs authentication of the car by use of an onboard-device-memory-access application software program.

6. The car-charging system according to any one of claims 1 to 4, wherein the DSRC onboard device performs authentication of the car by use of an onboard device ID communication application software program.

7. The car-charging system according to any one of claims 1 to 4, wherein the authentication-managing device and DSRC onboard device perform authentication of the car by use of an IC card access application software program.

8. The car-charging system according to claim 1, wherein the DSRC onboard device has an interface module for connecting with an external device, and executes both application software programs for communication through the power-supplying line from the interface module and communication through DSRC.