Adaptive Driving Behavior Control for Electric Vehicle Endurance
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Solution Overview
Problem
Existing energy recovery modes for electric vehicles fail to fully extend endurance mileage, and the timing of charging or battery swapping cannot be accurately determined, leading to potential roadside breakdowns due to power shortages.
Innovation Solution
An adaptive driving behavior adjusting method for electric vehicles that estimates endurance mileage based on state of charge, actual vehicle speed, load state, and terrain, and selectively enters a forced or optional adaptive driving mode to maximize energy savings and prevent power shortages, using GPS and other navigation systems to determine the nearest charging pile or destination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the battery pack capacity is increased to extend endurance mileage, then the energy storage capacity is improved, but the vehicle mass increases affecting performance and production costs
Solution Approach 1:
The system dynamically adjusts driving behavior parameters (speed, acceleration, regenerative braking intensity) based on real-time conditions to optimize energy consumption. By changing operational parameters rather than physical configuration, the patent achieves extended endurance mileage without increasing battery capacity or vehicle mass.
2Loss of energy
If regenerative braking is used to recover energy, then energy consumption is reduced, but it is insufficient to fully satisfy endurance mileage extending requirements
Solution Approach 1:
The patent combines multiple energy management strategies including regenerative braking, adaptive speed control, load management, and route optimization into a unified driving behavior adjustment system. This integrated approach complements regenerative braking with additional energy-saving measures to achieve greater overall energy recovery and extended endurance mileage.
3Speed
If the electric vehicle travels at higher speed, then the driving performance is improved, but the energy consumption increases reducing endurance mileage
Solution Approach 1:
The system dynamically adjusts vehicle speed based on real-time conditions including remaining endurance mileage, route characteristics, traffic conditions, and battery state of charge. Rather than maintaining a fixed speed, the control system continuously optimizes speed to balance driving performance with energy consumption, enabling the vehicle to travel faster when energy is abundant and slower when energy is limited.
4Use of energy by moving object
If the forced adaptive driving mode is activated to maximize endurance mileage, then the endurance mileage is extended, but the driver's control freedom is reduced
Solution Approach 1:
The system implements adaptive driving behavior adjustment to the extent necessary to achieve energy conservation goals while preserving driver authority. The forced adaptive driving mode activates only under specific conditions (low endurance mileage, critical energy states) rather than continuously, applying energy-saving measures partially rather than excessively. This allows the system to extend endurance mileage when needed while maintaining driver control freedom during normal operation.
Data Source
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AI summary
The invention provides an adaptive driving behavior adjusting method for an electric vehicle, intended for solving the problem that existing energy recovery approaches fail to fully satisfy endurance mileage extending requirements of electric vehicles and the problem that a charging or battery-swapping time cannot be accurately determined. The method comprises the steps of: estimating an endurance mileage of the electric vehicle; acquiring information of a location of the nearest charging pile or a destination by means of a GPS; acquiring information of a lane in which the electric vehicle is currently traveling by means of the GPS; and the electric vehicle selectively enters a forced adaptive driving mode or an optional adaptive driving mode, based on endurance mileage of the electric vehicle, the information of the location of the charging pile or the destination and the information of the lane. By means of the method, the electric vehicle can be prevented from roadside breakdown or failing to arrive at the destination due to failure to get recharged in time, and a driver can be warned to extend the endurance mileage in time when feasible, so that not only can electric energy be saved, thereby increasing the endurance mileage, but also breakdown due to power shortage can be prevented and the driving experience can be improved.