Route Determination for Electric Vehicle Dispatch Efficiency

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Solution Overview

Problem

Existing vehicle dispatch systems face inefficiencies when dispatching electrically powered vehicles with low battery capacity, as they may be excluded from candidate vehicles, narrowing the selection range and decreasing dispatch efficiency.

Innovation Solution

A route determination device and vehicle dispatch system that determine a vehicle dispatch route ensuring the power storage at the dispatch location is sufficient for the vehicle to reach the destination without mid-route charging, thereby avoiding exclusion from candidate vehicles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If electrically powered vehicles with low power storage are excluded from candidate vehicles, then the reliability of power supply for the destination route is improved, but the productivity of vehicle dispatch is deteriorated

Engineering Contradiction:
Improvepower supply reliabilityVSAvoidvehicle dispatch efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system performs preliminary action by determining a vehicle dispatch route that ensures sufficient power storage at the dispatch location before the vehicle actually travels. The route determination device calculates the required power storage amount in advance and selects routes that guarantee this condition is met, allowing vehicles with currently low power storage to be dispatched confidently without mid-route charging needs.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system changes the parameter of 'power storage amount' by dynamically calculating the required power storage based on the specific route parameters (distance, power consumption rate) and current vehicle state. This allows the system to accept vehicles with low current power storage if the calculated required power storage can be achieved through route selection, rather than using a fixed threshold for exclusion.

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If a fixed threshold for power storage is used to exclude vehicles, then the simplicity of vehicle selection is improved, but the adaptability to different routes and conditions is deteriorated

Engineering Contradiction:
Improvevehicle selection simplicityVSAvoidroute adaptability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The system replaces fixed threshold-based selection with dynamic parameter calculation. The required power storage amount is calculated based on specific route parameters (distance, power consumption rate) and vehicle state, allowing the selection criteria to adapt to different routes and conditions while maintaining simplicity through automated calculation.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The vehicle selection system becomes dynamic by continuously calculating the required power storage based on current route and vehicle conditions rather than using static thresholds. This allows the system to adapt to varying dispatch conditions while maintaining ease of operation through automated route-based determination.

Inventive Principle:
Principle #15Dynamics

3Reliability

If vehicles are excluded based on current power storage levels, then the safety of the dispatch decision is improved, but the loss of potential dispatch opportunities is increased

Engineering Contradiction:
Improvedispatch decision safetyVSAvoiddispatch opportunity utilization
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system performs preliminary route determination that calculates the required power storage amount before making dispatch decisions. This preliminary action allows the system to assess whether a vehicle can safely complete the route without mid-route charging, making dispatch decisions that are both safe and opportunity-maximizing rather than prematurely excluding vehicles.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses feedback from route parameters and vehicle state to dynamically adjust dispatch decisions. By continuously monitoring and calculating required power storage based on actual route conditions, the system can safely dispatch vehicles that would have been excluded by fixed thresholds, maximizing dispatch opportunities while maintaining safety.

Inventive Principle:
Principle #23Feedback

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 improves vehicle dispatch efficiency by ensuring electrically powered vehicles with low battery capacity can be dispatched, as they are not excluded due to low power storage, and can reach destinations without mid-route charging.

Implementation Method 1

The vehicle may include a power reception device that wirelessly receives electric power from a power transmission device installed in a charging lane while the vehicle travels on the charging lane

Methodology Applied
Scientific EffectWireless power transmission: Electromagnetic Induction

Data Source

PatentUS12264925B2Route determination device and vehicle dispatch system
Publication Date: 2025.04.01 TOYOTA JIDOSHA KK
  • US12264925B2 patent drawing
  • US12264925B2 patent drawing
  • US12264925B2 patent drawing

AI summary

A server includes a communication device and a processor. From a user terminal, the communication device acquires a vehicle dispatch request including information indicating a vehicle dispatch location and a destination of a vehicle. When the communication device acquires the vehicle dispatch request, the processor determines a traveling route of the vehicle from a current location of the vehicle to the destination via the vehicle dispatch location in accordance with the vehicle dispatch request. The processor determines a route from the current location to the vehicle dispatch location such that an amount of power storage in a power storage device at the vehicle dispatch location is larger than an amount of electric power with which the vehicle can travel from the vehicle dispatch location to the destination.