Route Planning Device for Electric Vehicles
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Solution Overview
Problem
Existing route planning systems for electric vehicles primarily focus on maximizing battery life without considering driver comfort and interior comfort, leading to an unsatisfactory trade-off between cruising distance and driving experience.
Innovation Solution
A route planning device that calculates comfort level scores based on battery charge, drive modes, and operational settings, providing the driver with optimized route plans that balance cruising distance and comfort, allowing for real-time adjustments and guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the vehicle travels in normal drive mode to maintain driver comfort, then the acceleration performance is improved, but the cruising distance is significantly decreased due to increased power consumption
Solution Approach 1:
The system dynamically switches between normal drive mode and economy drive mode based on real-time conditions such as battery level, distance to destination, and traffic conditions. This dynamic adjustment allows the vehicle to optimize the balance between acceleration performance and cruising distance, rather than being locked into a single drive mode throughout the journey.
Solution Approach 2:
The control unit changes operational parameters (drive mode) based on varying conditions. By monitoring battery level, distance to destination, and other factors, the system adjusts the drive mode parameter to maintain optimal performance while managing power consumption, thus resolving the contradiction between acceleration performance and cruising distance.
2Ease of operation
If equipment having a large amount of power consumption, such as an air conditioner, is used to maintain interior comfort, then the interior comfort is improved, but the cruising distance is significantly decreased
Solution Approach 1:
The system adjusts operational parameters including air conditioner usage based on battery level and distance to destination. When the battery level is low or the destination is far, the system may reduce or disable air conditioner operation to preserve cruising distance, while allowing full operation when battery level is sufficient, thus dynamically balancing interior comfort and cruising distance.
Solution Approach 2:
The operational settings of electric equipment are dynamically adjusted based on real-time conditions. The system monitors battery level, distance to destination, and other factors to determine the appropriate level of interior comfort equipment operation, allowing the vehicle to adapt between maintaining interior comfort and preserving cruising distance as conditions change.
3Duration of action of moving object
If the system prioritizes maximizing battery life to extend cruising distance, then the cruising distance is improved, but the driver comfort and operability are degraded
Solution Approach 1:
The system adjusts drive mode and equipment operation parameters based on a comprehensive evaluation of multiple factors including distance to destination, battery level, traffic conditions, and driver preferences. This parameter adjustment allows the system to balance cruising distance maximization with maintaining acceptable driver comfort levels, rather than purely prioritizing one over the other.
Solution Approach 2:
The system dynamically determines the optimal balance between cruising distance and driver comfort based on real-time conditions. By continuously monitoring various parameters and adjusting drive mode and equipment operation accordingly, the system adapts to changing conditions to maintain both adequate cruising distance and acceptable driver comfort, resolving the contradiction between these two objectives.
Data Source
AI summary
A route planning device plans plural routes from a current location to a destination, calculates an amount of electricity consumed by a motor during driving to the destination along each planned route in each of plural drive modes, calculates an amount of electricity consumed by electric equipment during driving to the destination along each planned route for each of plural operational settings of the electric equipment, calculates an estimated amount of charge remaining in a battery on arrival at the destination, calculates, for each of the planned routes, a total comfort level score for each of the drive modes and/or each of the operational settings of the electrical equipment, selects plural operation plans each formed from a combination of the route, drive mode, and operational setting on the basis of the calculated total comfort level score, and displays the selected operation plans on a display.