Vehicle Display Control for Accurate Future Energy Consumption Estimation
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Solution Overview
Problem
Existing cruising distance calculation devices for vehicles inaccurately estimate future energy consumption rates due to deviations in past average vehicle speed, leading to potential inaccuracies in displayed estimated consumption rates.
Innovation Solution
A display control device that estimates the average vehicle speed based on a predetermined parameter reflecting the travelable distance using an energy source, allowing for a more accurate calculation of the estimated consumption rate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the average vehicle speed in past travel is used to calculate the estimated consumption rate, then the calculation process is simple, but the accuracy of the estimated consumption rate deteriorates when the past average speed deviates from future average speed
Solution Approach 1:
The patent changes the parameter basis for estimation from historical average vehicle speed to a parameter reflecting travelable distance (such as power storage ratio, expected travel distance, or driving history). This parameter transformation allows the system to estimate future energy consumption more accurately by considering the relationship between travelable distance and typical driving patterns, rather than relying on potentially outdated historical speed data.
2Measurement precision
If the average vehicle speed is estimated based on travelable distance parameters, then the estimated consumption rate accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent introduces an intermediary estimation process that uses readily available parameters (power storage ratio, navigation distance, driving history) as mediators to infer the likely average vehicle speed. Rather than directly measuring future speed, the system uses these intermediary parameters that reflect travel conditions to estimate speed, thereby improving accuracy without requiring complex future prediction mechanisms.
Data Source
AI summary
A display control device includes a drive device for driving a drive shaft connected to an axle, and a display device for displaying information, and is used in a vehicle that is mounted on the vehicle and travels with at least one of fuel and electricity as an energy source, and displays an estimated consumption rate estimated as an energy consumption rate of a vehicle in the future on a display device, wherein an average vehicle speed of the vehicle is estimated based on a predetermined parameter reflecting a travelable distance that is a travelable distance by an amount of an energy source mounted on the vehicle, or a travelable distance, and an estimated consumption rate is calculated based on the estimated average vehicle speed.