Car-charging system

• US 9,553,724 B2
• Filed: 11/02/2009
• Issued: 01/24/2017
• Est. Priority Date: 04/27/2009
• Status: Active Grant

• Current Assignee: Mitsubishi Electric Corporation
• Original Assignee: Mitsubishi Electric Corporation
• Inventors: Takikita, Mamoru
• Primary Examiner(s): GIRMA, FEKADESELASS
• Application Number:
  US12/610,656
• Publication Number:
  US 20100271172A1
• Time in Patent Office: 2,640 Days
• Field of Search: 340/5.8
• US Class Current: 1/1
• 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 network architectures or network communication protocols for wireless network security H04W12/00
• 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 for a charge-accumulating device in a car operable to be charged through a power-supplying line from a power source outside the car comprising:

an authentication-managing device provided in a power supplying device outside the car; and

a Dedicated Short Range Communication (DSRC) onboard device provided in the car, the DSRC onboard device communicating with the authentication-managing device,

wherein the DSRC onboard device is equipped with an interface module connecting to an external device,

wherein authentication of the car is performed via communication between the authentication-managing device and the DSRC onboard device, and

wherein said authentication-managing device and the DSRC onboard device are operable, through the interface module, to separately perform authentication via both the power-supplying line and a DSRC channel.