US 2022/0024339 A1 · SYSTEM FOR DIAGNOSING IN-CABLE CONTROL BOX OF ELECTRIC VEHICLE AND METHOD FOR CONTROLLIG THE SAME

Abstract

A system for diagnosing an in-cable control box (ICCB) is installed in a vehicle, electrically connected, at one side thereof, to a low-speed charging cable having the ICCB, electrically connected, at another side thereof, to an on-board diagnostics (OBD) device, and is configured to diagnose the ICCB. The system includes a Control Pilot (CP) data conversion unit configured to receive charging situation data produced from the ICCB; a Controller Area Network (CAN) communication unit configured to receive diagnosis initiating data for the ICCB produced from the OBD device; and a control unit configured to receive the charging situation data from the CP data conversion unit, convert the charging situation data into data recognizable by the OBD device, receive the diagnosis initiating data from the CAN communication unit, and convert the diagnosis initiating data into data recognizable by the ICCB.

Claims11

Dependent claims

A system for diagnosing an in-cable control box (ICCB), wherein the system is disposed in a vehicle, and has one side electrically connected to a low-speed charging cable having an ICCB and another side electrically connected to an on-board diagnostics (OBD) device, the system comprising:

a Control Pilot (CP) data conversion unit configured to receive charging situation data produced from the ICCB;
a Controller Area Network (CAN) communication unit configured to receive diagnosis initiating data for the ICCB produced from the OBD device;
and
a control unit configured to:
receive the charging situation data from the CP data conversion unit,
convert the charging situation data into data recognizable by the OBD device,
receive the diagnosis initiating data from the CAN communication unit,
and convert the diagnosis initiating data into data recognizable by the ICCB,
wherein, when the connection with the ICCB is recognized, the control unit receives the diagnosis initiating data from the OBD device and transmits the diagnosis initiating data to the ICCB and the control unit receives the charging situation data from the ICCB and transmits the charging situation data to the OBD device, so that the OBD device diagnoses the ICCB.

6 more elements

An in-cable control box (ICCB) of a low-speed charging cable for an electric vehicle, the ICCB comprising:

a controller configured to produce charging situation data;
a Control Pilot (CP) drive circuit configured to output the charging situation data produced from the controller;
and
a Universal Asynchronous Receiver/Transmitter (UART) interface connected between the CP drive circuit and the controller, the UART interface configured to perform UART communication.

1 more element

A method of controlling a system for diagnosing an in-cable control box (ICCB), wherein the system has one side electrically connected to a low-speed charging cable having the ICCB and another side electrically connected to an on-board diagnostics (OBD) device, the method comprising:

receiving, by the ICCB, a diagnosis initiating instruction from the OBD device and entering a diagnosis mode for diagnosing the ICCB when a connector of the low-speed charging cable is connected to a charging outlet of the system;
checking, by the ICCB, a type of instruction when the diagnosis initiating instruction is received from the OBD device;
and
recognizing, by the ICCB, whether the ICCB is currently in a failure state and transmitting a failure code corresponding to the recognized failure state to the OBD device, when the diagnosis initiating instruction includes an instruction to request a response to the failure code.

1 more element

Dependencies are inferred from the claim text.

System for diagnosing in-cable control box of electric vehicle and method for controllig the same

Life of this patent

System for diagnosing in-cable control box of electric vehicle and method for controllig the same

Life of this patent

Abstract

Claims11