Vehicle Control System Battery Temperature Notification

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Solution Overview

Problem

Existing vehicle control systems face challenges in maintaining battery temperature when the external power source is not available, leading to a decrease in remaining battery level, which can inhibit temperature regulation and result in battery deterioration.

Innovation Solution

A vehicle control system that transmits notifications to the user when predetermined conditions for activating auxiliary devices like the battery heater are met, and the external power source is unavailable, ensuring the user connects an external power source to prevent battery level depletion by regulating battery temperature using either external or internal power sources.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If battery temperature regulation is performed using the vehicle's internal battery power, then the battery temperature can be maintained at appropriate levels, but the remaining battery level decreases

Engineering Contradiction:
Improvebattery temperatureVSAvoidremaining battery level
Core Design Contradiction:
TemperatureVSUse of energy by moving object

Solution Approach 1:

The notification system acts as an intermediary between the battery management system and the user. When the battery temperature regulation function is activated, the system sends a notification to the user's terminal device, prompting them to connect an external power source. This intermediary communication mechanism resolves the contradiction by informing users of the power consumption situation without directly controlling the temperature regulation process.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system implements feedback by monitoring the battery temperature and remaining battery level, then communicating this status information to the user through notifications. When the temperature regulation is active and battery level is decreasing, the feedback loop triggers a notification to the user's terminal, enabling the user to take appropriate action (connecting external power) to resolve the energy consumption issue.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If the vehicle is not connected to an external power source, then the vehicle maintains operational independence, but the battery temperature regulation cannot be performed when needed

Engineering Contradiction:
Improveoperational independenceVSAvoidbattery temperature regulation capability
Core Design Contradiction:
Adaptability or versatilityVSTemperature

Solution Approach 1:

The system performs preliminary action by proactively notifying the user before the battery temperature becomes problematic or before the battery level becomes critically low. The notification is sent in advance, giving the user time to connect an external power source before the vehicle's internal power is depleted or temperature issues arise, thus maintaining both operational independence and temperature regulation capability.

Inventive Principle:
Principle #10Preliminary action

3Temperature

If battery temperature regulation is continuously performed, then the battery remains at optimal temperature, but unnecessary battery discharge occurs when external power is available

Engineering Contradiction:
Improvebattery temperature stabilityVSAvoidbattery energy loss
Core Design Contradiction:
TemperatureVSLoss of energy

Solution Approach 1:

The system dynamically adjusts the temperature regulation strategy based on the availability of external power sources. When external power is detected, the system can maintain temperature regulation without depleting the vehicle's internal battery. When external power is unavailable, the system notifies the user and adjusts its operation to conserve battery energy, creating a dynamic response that resolves the contradiction between temperature stability and energy conservation.

Inventive Principle:
Principle #15Dynamics

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

Prevents excessive battery level depletion by notifying the user to connect an external power source, maintaining battery health and preventing unnecessary battery discharge during temperature regulation.

Implementation Method 1

a battery heater 14 for heating the battery 11

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

air conditioner 33...supply cooled air or heated air to the battery 11

Methodology Applied
Scientific EffectCooling: Cooling

Data Source

PatentEP2899058B1Vehicle control system, vehicle information supply device, and vehicle information supply method
Publication Date: 2017.09.27 NISSAN MOTOR CO LTD
  • EP2899058B1 patent drawingFigure 1
  • EP2899058B1 patent drawingFigure 2
  • EP2899058B1 patent drawingFigure 3(a)~3(f)

AI summary

There is provided a system including a battery 11 capable of being charged with electricity supplied from an external power source 50 outside a vehicle, a battery heater 14 and an air conditioning auxiliary system 33 configured to operate by consuming the electricity supplied from the external power source 50 or the battery 11 installed in the vehicle, a communication unit 26 capable of transmitting information about the vehicle outward from the vehicle, and a vehicle ECU 21 configured to direct the communication unit 26 to transmit information about predetermined notice to a user of the vehicle when a predetermined condition for activating the battery heater 14 or the air conditioning auxiliary system 33 is fulfilled and when the external power source 50 is not available.