Parked EV Power Management Using Destination-Based Battery Precharging

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Solution Overview

Problem

Electrified vehicles with low-capacity traction batteries face challenges in effectively supplying power to non-drive systems while parked, leading to issues such as engine durability, noise, and environmental concerns.

Innovation Solution

A method is implemented to store location-specific execution history of a power management mode, classify locations based on execution frequency and power consumption, and provide information or propose entry into the power management mode based on destination type and driving progress, allowing the vehicle to utilize stored electrical energy from the traction battery while parked.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If the engine or fuel cell is operated to charge the traction battery while the vehicle is parked, then power can be supplied to non-drive systems, but engine durability deteriorates and noise and vibration increase

Engineering Contradiction:

Improvepower supply to non-drive systemVSAvoidengine durability

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The system performs preliminary charging of the traction battery before the vehicle is parked by operating the power generation device during driving or at charging locations. This advance action ensures sufficient battery energy is stored beforehand, eliminating the need to operate the engine or fuel cell during parked periods, thus preserving engine durability while still providing power to non-drive systems.

Inventive Principle:

Principle #10Preliminary action

2Use of energy by moving object

If the fuel cell stack is run to provide power while the vehicle is parked, then power can be supplied to non-drive systems, but fuel cell stack durability deteriorates

Engineering Contradiction:

Improvepower supply to non-drive systemVSAvoidfuel cell stack durability

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The system charges the traction battery in advance during driving operations or at external charging locations before the vehicle is parked. This preliminary charging action ensures the battery has sufficient energy to power non-drive systems during parked periods, eliminating the need to operate the fuel cell stack during these periods and thereby preserving fuel cell stack durability.

Inventive Principle:

Principle #10Preliminary action

3Use of energy by moving object

If the engine is started to charge the battery while parked, then power consumption issues are addressed, but noise and vibration increase

Engineering Contradiction:

Improvebattery charging capabilityVSAvoidnoise and vibration

Core Design Contradiction:

Use of energy by moving objectVSObject-affected harmful factors

Solution Approach 1:

The system performs battery charging in advance during driving operations or at external charging locations before the vehicle is parked. This preliminary charging ensures the traction battery has sufficient energy stored to power non-drive systems during parked periods, eliminating the need to start the engine during parked periods and thereby avoiding noise and vibration.

Inventive Principle:

Principle #10Preliminary action

4Reliability

If the vehicle uses traction battery energy while parked, then engine operation is minimized, but power availability is constrained by battery capacity

Engineering Contradiction:

Improveengine durabilityVSAvoidavailable electrical energy

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The system performs preliminary charging of the traction battery during driving operations or at external charging locations before the vehicle is parked. This advance action ensures the battery is fully charged and has sufficient energy capacity to power non-drive systems throughout the parked period, eliminating the constraint of limited battery capacity while still avoiding engine operation.

Inventive Principle:

Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach enhances vehicle residency by providing power to non-drive systems while parked, ensuring efficient power management and reducing the need for engine operation, thereby minimizing noise, vibration, and environmental impact.

Implementation Method 1

a traction battery configured to store the generated electrical energy

Methodology Applied

Scientific EffectBattery (electricity): Battery (electricity)

Data Source

PatentUS20250289387A1Electrified vehicle and method of controlling power management mode for the same

Publication Date: 2025.09.18 HYUNDAI MOTOR CO LTD

AI summary

The present disclosure relates to an electrified vehicle and a method of controlling a power management mode for the vehicle that allows effective provision of the power management mode for supplying power to a non-drive system while the vehicle is parked. A method may include storing location-specific execution history of a power management mode of an electrified vehicle, classifying a location in the location-specific execution history into one of a plurality of types in the location-specific execution history based on: execution frequency, of the power management mode, associated with the location, and vehicle power consumption associated with the location, outputting information related to the power management mode, based on a type of a destination and driving progress, and, based on the electrified vehicle being parked and satisfying a predetermined condition, causing the electrified vehicle to, in the power management mode, use the stored electrical energy of the traction battery.