# US 10,308,131 B1 · Courtesy hand-off visual indicators for public electrified vehicle charging

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- Number: US 10,308,131 B1
- Document ID: US10308131B1
- Status: Granted
- Kind: B1
- Application number: 15/873,949
- Filed: 2018-01-18
- Granted: 2019-06-04
- Earliest claimed: 2018-01-18
- Assignees: Ford Global Technologies, LLC
- Applicants: Ford Global Technologies, LLC
- Inventors: Alexander Bartlett; Dylan Erb; Jacob Wiles; Bikram Singh; Baocheng Sun
- Web page: https://patentgrep.com/patent/US10308131B1

## CPC

- B60L 53/14: Conductive energy transfer
- B60L 3/04: Cutting off the power supply under fault conditions (protective devices and circuit arrangements in general H01H; H02H)
- B60L 50/66: {Arrangements of batteries}
- B60L 53/16: Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
- B60L 53/65: involving identification of vehicles or their battery types
- B60L 58/12: responding to state of charge [SoC]
- G01R 31/371: with remote indication, e.g. on external chargers
- H02J 7/70: characterised by the mechanical construction
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- Y02T 90/12: Electric charging stations
- Y02T 90/14: Plug-in electric vehicles
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A charging system for an electrified vehicle includes a battery pack, a charging component in charging connection with the battery pack, a visual indicator on the charging component, and a control module configured to illuminate the visual indicator in response to reaching a predefined state of charge (SOC) threshold of the battery pack. The visual indicator can indicate that the SOC of the battery pack has reached a level that is acceptable for unplugging the electrified vehicle from a charging station.

## Claims

### Claim 1

A charging system for an electrified vehicle, comprising:
a battery pack;
a charging component located onboard the electrified vehicle and being in charging connection with the battery pack;
a visual indicator on the charging component; and
a control module configured to illuminate the visual indicator in response to reaching a predefined state of charge (SOC) threshold of the battery pack.

### Claim 2 (depends on 1)

The charging system as recited in claim 1, wherein the charging component is a vehicle inlet assembly.

### Claim 3 (depends on 2)

The charging system as recited in claim 2, wherein the visual indicator is mounted within a housing of the vehicle inlet assembly.

### Claim 4 (depends on 1)

The charging system as recited in claim 1, wherein the visual indicator includes an insert and a light source.

### Claim 5 (depends on 4)

The charging system as recited in claim 4, wherein the insert is mounted within a housing of the charging component and the light source is positioned behind the insert.

### Claim 6 (depends on 4)

The charging system as recited in claim 4, wherein the light source includes a light emitting diode (LED).

### Claim 7 (depends on 4)

The charging system as recited in claim 4, wherein the control module is configured to actuate the light source to illuminate the insert.

### Claim 8 (depends on 1)

The charging system as recited in claim 1, wherein the visual indicator includes a pictogram, a word, or both.

### Claim 9 (depends on 1)

The charging system as recited in claim 1, wherein the visual indicator indicates that the SOC of the battery pack has reached a level that is acceptable to a user of the electrified vehicle.

### Claim 10 (depends on 9)

The charging system as recited in claim 9, wherein the visual indicator indicates that it is acceptable to unplug the electrified vehicle from a charging station.

### Claim 11 (depends on 1)

The charging system as recited in claim 1, wherein the predefined SOC threshold of the battery pack is input by a user of the electrified vehicle.

### Claim 12 (depends on 11)

The charging system as recited in claim 11, wherein the predefined SOC threshold is input on a human machine interface of the electrified vehicle.

### Claim 13 (depends on 1)

The charging system as recited in claim 1, wherein the visual indicator is located near a charging port of the charging component.

### Claim 14

A method, comprising:
automatically illuminating a visual indicator of a charging component located onboard an electrified vehicle in response to reaching a predefined minimum state of charge (SOC) threshold when charging a battery pack, wherein the visual indicator indicates that the SOC of the battery pack has reached a level that is acceptable for unplugging the electrified vehicle from a charging station.

### Claim 15 (depends on 14)

The method as recited in claim 14, comprising determining whether a user has input the predefined minimum SOC threshold.

### Claim 16 (depends on 14)

The method as recited in claim 14, wherein automatically illuminating the visual indicator includes illuminating a pictogram.

### Claim 17 (depends on 14)

The method as recited in claim 14, wherein automatically illuminating the visual indicator includes illuminating a word.

### Claim 18 (depends on 14)

The method as recited in claim 14, wherein automatically illuminating the visual indicator includes illuminating a pictogram and a word.

### Claim 19 (depends on 14)

The method as recited in claim 14, wherein the predefined minimum SOC threshold is a user defined value that is less than 100% SOC.

### Claim 20 (depends on 14)

The method as recited in claim 14, wherein the charging station includes a housing and an output display, and the charging component that includes the visual indicator is completely separate from either the housing or the output display.

### Claim 21 (depends on 1)

The charging system as recited in claim 1, wherein the charging component is configured to receive a charge connector of a charge cord.

### Claim 22 (depends on 1)

The charging system as recited in claim 1, comprising a high voltage cable connecting between the charging component and the battery pack.

### Claim 23 (depends on 1)

The charging system as recited in claim 1, wherein a housing of the charging component is permanently mounted to a vehicle body of the electrified vehicle.

### Claim 24 (depends on 1)

The charging system as recited in claim 1, wherein the charging component includes a door movable between a closed position and an open position, wherein the visual indicator is exposed for viewing when the door is in the open position.

### Claim 25

A method, comprising:
automatically illuminating a visual indicator of a charging component of an electrified vehicle in response to reaching a predefined minimum state of charge (SOC) threshold when charging a battery pack, wherein the visual indicator indicates that the SOC of the battery pack has reached a level that is acceptable for unplugging the electrified vehicle from a charging station;
determining whether a user has input the predefined minimum SOC threshold; and
setting a default value of 100% SOC if the user has not input the predefined minimum SOC value.
