Point Granting Device for Electrified Vehicles

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Solution Overview

Problem

Existing point granting devices for electrified vehicles do not accurately reward users based on carbon dioxide emissions reduction, as they do not differentiate between renewable energy usage and actual electric power costs during charging and traveling.

Innovation Solution

A point granting device that calculates points based on the ratio of renewable energy to charged electric power for externally chargeable vehicles and actual electric power costs compared to model costs for vehicles using electric power, with specific point values assigned based on these ratios and costs, and also predicts optimal charging times to maximize renewable energy usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If points are uniformly granted to all electrified vehicle users, then the point granting system is simple and easy to operate, but it does not accurately reflect the actual carbon dioxide emissions reduction achieved

Engineering Contradiction:
Improveaccuracy of carbon dioxide emissions reduction measurementVSAvoidcomplexity of point granting system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the point granting system into two distinct modes: one for externally chargeable vehicles that calculates points based on renewable energy ratio, and another for vehicles that travel using electric power that compares actual versus model electric power costs. This segmentation allows each mode to be optimized independently, improving measurement precision without overwhelming complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system changes the parameter used for point calculation based on vehicle type. For externally chargeable vehicles, it uses the ratio of renewable energy to charged electric power. For vehicles traveling using electric power, it uses the comparison between actual and model electric power costs. This parameter adaptation improves accuracy while maintaining manageable system complexity.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If points are granted based on renewable energy ratio for externally chargeable vehicles, then carbon dioxide emissions reduction is accurately reflected, but the system becomes more complex in calculating and tracking energy sources

Engineering Contradiction:
Improveaccuracy of carbon dioxide emissions reduction measurementVSAvoiddifficulty of detecting and measuring renewable energy usage
Core Design Contradiction:
Measurement precisionVSDifficulty of detecting and measuring

Solution Approach 1:

The patent introduces a power supply information acquisition unit that acts as an intermediary to obtain renewable energy ratio information from external sources. This mediator handles the complexity of tracking energy sources, allowing the point granting unit to focus on calculation based on provided data, thus improving precision while managing measurement difficulty.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system implements feedback mechanisms where the point granting device continuously monitors and compares actual renewable energy usage against target values, adjusting point calculations accordingly. This feedback loop ensures accurate reflection of carbon dioxide emissions reduction while systematically managing the complexity of energy source tracking.

Inventive Principle:
Principle #23Feedback

3Productivity

If points are granted based on actual electric power cost comparison for vehicles traveling using electric power, then appropriate rewards are given for efficient energy consumption, but the system requires complex modeling and comparison processes

Engineering Contradiction:
Improveefficiency of energy consumption reward systemVSAvoidcomplexity of modeling and comparison process
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent establishes model electric power costs in advance for different vehicle types and travel conditions. This preliminary action creates a reference framework that simplifies the comparison process during actual operation, allowing the system to efficiently reward energy consumption without complex real-time modeling.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system adapts the comparison parameter based on vehicle type, using appropriate model electric power costs for each category. This parameter customization allows efficient energy consumption rewarding while managing modeling complexity through standardized approaches for different vehicle types.

Inventive Principle:
Principle #35Parameter changes

4Productivity

If the system predicts and notifies optimal charge timing to maximize renewable energy usage, then renewable energy utilization is improved, but the system requires additional prediction and notification functions

Engineering Contradiction:
Improverenewable energy utilization efficiencyVSAvoidcomplexity of prediction and notification system
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements preliminary prediction of optimal charge timing based on forecasted renewable energy availability. By determining and notifying users in advance of the best charging times, the system maximizes renewable energy utilization without requiring complex real-time control mechanisms during charging.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system provides self-service functionality where the prediction and notification mechanisms automatically identify and communicate optimal charging opportunities to users. This self-service approach improves renewable energy utilization while minimizing the need for additional manual intervention or complex centralized control.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS12112348B2Point granting device and point granting method
Publication Date: 2024.10.08 TOYOTA JIDOSHA KK
  • US12112348B2 patent drawing
  • US12112348B2 patent drawing
  • US12112348B2 patent drawing

AI summary

When electrified vehicle is a vehicle capable of externally charging electric power, the point granting device imparts a point in accordance with a ratio of the amount of electric power obtained from renewable energy to the amount of electric power charged. In addition, when electrified vehicle is a vehicle traveling using electric power, the point granting device imparts a point in response to the actual electric power cost achieved by the traveling being equal to or higher than the modeled electric power cost.