Electric Vehicle Cruise Controller Optimizing Travel and Charging Time
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Solution Overview
Problem
The convenience of electric-powered vehicles is hindered by the long total required time for travel, including charging time, as existing systems do not provide an effective method to shorten this duration.
Innovation Solution
A vehicle-mounted information terminal calculates the optimal vehicle speed to minimize total required time by considering factors such as charging facility output, accessory usage, and external temperature, providing guidance to drivers to adjust their speed for efficient travel and charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the vehicle travels at high speed to reduce traveling time, then the traveling time is shortened, but the energy consumption increases and charging time increases
Solution Approach 1:
The system dynamically adjusts the recommended vehicle speed by changing the speed parameter based on real-time conditions (battery charge level, charging facility output, accessory usage, external temperature) to optimize the balance between traveling time and energy consumption, thereby resolving the contradiction between reducing traveling time and minimizing energy consumption
2Loss of time
If the vehicle travels at high speed to reduce total required time, then the traveling time is reduced, but the charging time increases due to higher energy consumption
Solution Approach 1:
The system optimizes the total required time by dynamically adjusting the vehicle speed parameter, which simultaneously affects both traveling time and charging time. By calculating the optimal speed that minimizes the sum of traveling time and charging time, the system resolves the contradiction between reducing total required time and minimizing charging time
3Ease of operation
If accessories are used to improve comfort, then the usability is improved, but the energy consumption increases
Solution Approach 1:
The system incorporates accessory usage detection that provides feedback on the energy consumption impact of accessory usage. This feedback mechanism allows the system to adjust the recommended vehicle speed accordingly, resolving the contradiction by informing users of the energy-trading relationship and enabling them to make informed decisions about accessory usage
Data Source
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AI summary
Disclosed is an information terminal for electric-powered vehicles or a cruise controller (1500) therefor to provide a driver with a traveling method that can shorten a total required time to a destination including a charging time. An information terminal for electric-powered vehicle configured to calculate a required time for the vehicle to travel a route from a current position to a destination in accordance with map information, includes: route setting means (101) that searches for a route to the destination for setting; recharging place setting means (104) that sets a charging place on a way of the route to the destination set by the route setting means (101); and charging facility information acquisition means (105) that acquires information on the charging place set by the recharging place setting means (104). A recommended vehicle speed or a vehicle speed range including the recommended vehicle speed at a section to the charging place is calculated. The recommend vehicle speed is set as a standard vehicle speed.