# US 11,077,768 B2 · Personalized range protection strategy for electrified vehicles

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- Number: US 11,077,768 B2
- Document ID: US11077768B2
- Status: Granted
- Kind: B2
- Application number: 14/813,704
- Filed: 2015-07-30
- Published: 2017-02-02
- Granted: 2021-08-03
- Earliest claimed: 2015-07-30
- Assignees: Ford Global Technologies, LLC
- Applicants: Ford Global Technologies, LLC
- Inventors: Xiao Guang Yang; Jianbo Lu
- Web page: https://patentgrep.com/patent/US11077768B2

## CPC

- B60L 58/12: responding to state of charge [SoC]
- B60Q 9/00: Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00 {, e.g. haptic signalling}
- B60L 2240/12: Speed
- B60L 2250/20: by driver identification
- B60L 2260/52: drive range estimation, e.g. of estimation of available travel distance
- 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 90/14: 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
- B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A method according to an exemplary aspect of the present disclosure includes, among other things, controlling a vehicle system to refine a travel range estimation of an electrified vehicle if a desired destination cannot be reached under current driving conditions. The controlling step includes warning a driver about a travel range based on the driver's driving habits, coaching the driver to modify the driving habits, and adjusting operation of at least one vehicle subsystem.

## Claims

### Claim 1

A method, comprising:
controlling a vehicle system to refine a travel range estimation of an electrified vehicle when a desired destination cannot be reached under current driving conditions, the controlling step including warning a driver about a travel range based on the driver's driving habits, coaching the driver to modify the driving habits, and adjusting operation of at least one vehicle subsystem in a manner that refines the travel range estimation,
wherein the vehicle system includes a control system configured to execute the controlling of the vehicle system.

### Claim 2 (depends on 1)

The method as recited in claim 1, wherein the refined travel range estimation is based on a combination of battery information, driver information and telematics information.

### Claim 3 (depends on 2)

The method as recited in claim 2, wherein the battery information includes at least battery usable energy, battery state of charge, battery power capabilities, and battery thermal states.

### Claim 4 (depends on 2)

The method as recited in claim 2, wherein the driver information includes at least the driving habits and driver preferences of the driver.

### Claim 5 (depends on 2)

The method as recited in claim 2, wherein the telematics information includes at least traffic conditions, weather conditions, and road conditions.

### Claim 6 (depends on 1)

The method as recited in claim 1, wherein the warning step and the coaching step include issuing a visual or audible output to the driver.

### Claim 7 (depends on 1)

The method as recited in claim 1, wherein the adjusting step includes reducing an auxiliary power usage associated with the at least one vehicle subsystem.

### Claim 8 (depends on 1)

The method as recited in claim 1, wherein the adjusting step includes automatically lowering the travel speed of the electrified vehicle.

### Claim 9 (depends on 1)

The method as recited in claim 1, wherein the adjusting step includes automatically maximizing regenerative braking.

### Claim 10 (depends on 1)

The method as recited in claim 1, comprising, after calculating the refined travel range estimation, determining whether the desired destination is reachable based on the refined travel range estimation.

### Claim 11 (depends on 10)

The method as recited in claim 10, comprising rerouting the electrified vehicle to a nearby charging station when the desired destination is not reachable based on the refined travel range estimation.

### Claim 12 (depends on 1)

The method as recited in claim 1, wherein the coaching step is performed only when manually turned ON.

### Claim 13 (depends on 1)

The method as recited in claim 1, comprising selecting the desired destination prior to performing the controlling step.

### Claim 14 (depends on 1)

The method as recited in claim 1, comprising collecting battery information, driver information and telematics information prior to performing the controlling step.

### Claim 15 (depends on 1)

The method as recited in claim 1, wherein the at least one vehicle subsystem is at least one of an HVAC system, a lighting system, and an entertainment system of the electrified vehicle.

### Claim 16 (depends on 1)

The method as recited in claim 1, wherein warning the driver includes issuing the warning on a user interface of the electrified vehicle indicating that the desired destination is likely not reachable under the current driving conditions.

### Claim 17 (depends on 1)

The method as recited in claim 1, wherein coaching the driver includes issuing a coaching prompt on a user interface of the electrified vehicle promoting the driver to either change the driver's driving habits or alter a driving route of the electrified vehicle.

### Claim 18

A vehicle system, comprising:
a high voltage battery pack;
a vehicle subsystem selectively powered by said high voltage battery pack; and
a control system configured to warn a driver about a travel range based on the driver's driving habits and adjust operation of said vehicle subsystem in a manner that refines a travel range estimation when a desired destination cannot be reached under current driving conditions.

### Claim 19 (depends on 18)

The vehicle system as recited in claim 18, wherein said control system is configured to coach the driver to modify the driving habits.

### Claim 20 (depends on 18)

The vehicle system as recited in claim 18, wherein said control system includes a battery management system.

### Claim 21 (depends on 18)

The vehicle system as recited in claim 18, wherein said control system is configured to receive battery information from said high voltage battery pack and navigation information from a navigation system.

### Claim 22 (depends on 18)

The vehicle system as recited in claim 18, wherein said control system is configured to receive driver information and telematics information.

### Claim 23 (depends on 18)

The vehicle system as recited in claim 18, wherein said vehicle subsystem is at least one of an HVAC system, a lighting system, and an entertainment system.

### Claim 24

A method, comprising:
controlling a vehicle system to refine a travel range estimation of an electrified vehicle when a desired destination cannot be reached under current driving conditions, wherein controlling the vehicle system includes automatically reducing auxiliary power usage associated with a vehicle subsystem in a manner that increases a travel range of the electrified vehicle,
wherein automatically reducing the auxiliary power usage is executed by a control system module of the electrified vehicle.
