Distributed charging system and method for electrical vehicle

• US 8,324,860 B2
• Filed: 04/06/2010
• Issued: 12/04/2012
• Est. Priority Date: 04/06/2010
• Status: Active Grant

• Current Assignee: EVP Technology LLC. USA
• Original Assignee: EVP Technology LLC. USA
• Inventors: Young, James, Cheng, Yaw-Chung, Chang, Hao-Chung
• Primary Examiner(s): Fantu, Yalkew
• Application Number:
  US12/755,393
• Publication Number:
  US 20110241619A1
• Time in Patent Office: 973 Days
• Field of Search: 320/109
• US Class Current: 320/109
• CPC Class Codes: B60L 2200/12 Bikes
• CPC Class Codes: B60L 2200/18 Buses
• CPC Class Codes: B60L 2200/22 Microcars, e.g. golf cars
• CPC Class Codes: B60L 2200/32 Waterborne vessels
• CPC Class Codes: B60L 2200/36 Vehicles designed to transport cargo, e.g. trucks
• CPC Class Codes: B60L 2200/42 Fork lift trucks
• CPC Class Codes: B60L 50/40 using propulsion power supplied by capacitors
• CPC Class Codes: B60L 53/11 DC charging controlled by the charging station, e.g. mode 4
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: Y02P 90/60 Electric or hybrid propulsion means for production processes
• 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

Abstract

The distributed charging system is for charging an energy storage device of an electrical vehicle operated within an operation region where a number of station or parking areas are arranged at intervals. The system contains a plurality of charging stations and fast charging devices where a charging station is provided at each station or parking area and at least a fast charging device is provided at each charging station. When the electrical vehicle is parked at a station or parking area, the electrical vehicle'"'"'s energy storage device is quickly charged by the fast charging device there. Therefore, there is no additional and dedicated time spent for charging while the capacity, cost, weight, and size of the energy storage device could be reduced, making the electrical vehicle less costly, more compact, and with more extended operation time and distance.

Claims

1. A distributed charging system for charging an energy storage device of an electrical vehicle that is operated within an operation region where a plurality of stations or parking areas are arranged at intervals for the parking of said electrical vehicle, said operation region comprises a route, said electrical vehicle runs back and forth along said route, said stations or parking areas are configured along said route, and, when said electrical vessel parks at a station or parking area, said electrical vessel is charged, said system comprising:

a plurality of charging stations; and

a plurality of fast charging devices;

wherein a charging station is provided at each station or parking area; and

at least a fast charging device is provided at each charging station.

2. The distributed charging system according to claim 1, wherein each of said fast charging devices has a charging speed of more than 1C.

3. The distributed charging system according to claim 1, wherein said energy storage device is a fast-chargeable energy storage device capable of being quickly charge, and is selected from the group consisting of a LiFeP battery and a super capacitor.

4. The distributed charging system according to claim 1, wherein said electrical vehicle is selected from a group consisting of an electrical bus, electrical automobile, electrical motorcycle, electrical bicycle, electrical work vehicle, electrical stacker, electrical pallet truck, and an electrical vessel.

5. A distributed charging method for charging an energy storage device of an electrical vehicle operated within an operation region where a plurality of parking areas are arranged at intervals for the parking of said electrical vehicle, aid operation region comprises a route, said electrical vehicle runs back and forth along said route, said stations or parking areas are configured along said route, and, when said electrical vessel parks at a station or parking area, said electrical vessel is charged, said method comprising the following steps:

providing a charging station at each of said station or parking areas, each charging station comprising at least a fast charging device; and

when said electrical vehicle is parked at a station or parking area, said electrical vehicle'"'"'s energy storage device is quickly charged by a fast charging device of a charging station arranged in said station or parking area.

6. The distributed charging method according to claim 5, wherein each of said fast charging devices has a charging speed of more than 1C.

7. The distributed charging method according to claim 5, wherein said energy storage device is a fast-chargeable energy storage device capable of being quickly charge, and is selected from the group consisting of a LiFeP battery and a super capacitor.

8. The distributed charging method according to claim 5, wherein said electrical vehicle is selected from a group consisting of an electrical bus, electrical automobile, electrical motorcycle, electrical bicycle, electrical work vehicle, electrical forklift, electrical pallet truck, and an electrical vessel.