On-board charger for eco-friendly vehicle

• US 9,796,285 B2
• Filed: 10/02/2014
• Issued: 10/24/2017
• Est. Priority Date: 10/25/2013
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Lee, Jaewon, Kwak, Sanghoon, Jeong, Jeehye, Na, Junghwan
• Primary Examiner(s): Pacheco, Alexis
• Application Number:
  US14/504,761
• Publication Number:
  US 20150115873A1
• Time in Patent Office: 1,118 Days
• Field of Search: 320109, 320108, 320107, 320104, 320134, 180 65275, 180 6529
• CPC Class Codes: B60L 50/51 characterised by AC-motors
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: B60L 53/16 Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/31 Charging columns specially adapted for electric vehicles
• CPC Class Codes: H01M 10/44 Methods for charging or discharging circuits for charging H02J7/00
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• 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

An on-board charger for an eco-friendly vehicle includes a timer-type control pilot (CP) detection circuit, which is connected to electric vehicle supply equipment (EVSE) using a connector, that: i) detects a CP signal transmitted from the EVSE as an input signal via the connector, ii) outputs the CP signal as a direct current (DC) signal recognized as DC, and iii) allows an on-board charger (OBC) control circuit to control a charge to be maintained in a turned-on state by the DC signal.

Claims

1. An on-board charger for an eco-friendly vehicle, comprising:

a control pilot (CP) detection circuit, which is connected to electric vehicle supply equipment (EVSE) using a connector, that;

i) detects a CP signal transmitted from the EVSE as an input signal via the connector, ii) outputs the CP signal as a direct current (DC) signal recognized as DC, and iii) allows an on-board charger (OBC) control circuit to control a charge to be maintained in a turned-on state by the DC signal,

wherein the CP detection circuit is a timer-type CP detection circuit, and the timer-type CP detection circuit has an output duration set to be longer than a period of the CP signal, and

wherein the DC signal output from the timer-type CP detection circuit is continuously maintained so long as the CP signal is input to the timer-type CP detection circuit.

2. The on-board charger of claim 1, wherein the CP detection circuit is a comparator-type CP detection circuit, and the comparator-type CP detection circuit is configured by a 2ch open drain-type comparator.

3. The on-board charger of claim 1, wherein the CP detection circuit is an integrated circuit (IC) timer-type CP detection circuit, and the IC timer-type CP detection circuit is configured by a timer IC which is a missing pulse detector of a 555 timer circuit.

4. The on-board charger of claim 1, wherein a timer-type CP detection circuit, a comparator-type CP detection circuit, or an IC timer-type CP detection circuit is supplied with power from an auxiliary power unit, the DC signal is transmitted to a main power unit via an on/off logic supplied with power from the auxiliary power unit, and the OBC control circuit is turned on by the main power unit.