Vehicle Range Mode Switching for Target Mileage Control
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Solution Overview
Problem
Electric vehicles face mileage anxieties due to insufficient range, leading to poor user experience as actual travel may fail to match user's planned arrangements.
Innovation Solution
A vehicle control method that switches from a first mode to a second, more power-saving mode when the first mode's range is insufficient to reach a target distance, using state of charge calculations and historical travel data to determine mode changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vehicle operates in a non-power-saving mode (first mode) to maintain performance and comfort, then the driving experience is improved, but the range becomes insufficient to reach the destination
Solution Approach 1:
The system dynamically switches between different driving modes (first mode and second mode) based on real-time range calculations and destination requirements. The control unit monitors the state of charge and automatically adjusts the driving mode to ensure the vehicle can reach the destination, transitioning from a static mode selection to a dynamic adaptive system.
Solution Approach 2:
The system changes the operating parameters of the vehicle by switching between different driving modes that have distinct power consumption characteristics. The control unit calculates the required range and adjusts the driving mode parameters (power consumption rate) to match the destination requirement, effectively using parameter changes to resolve the range insufficiency problem.
2Duration of action of moving object
If the vehicle switches to a power-saving mode (second mode) to extend range, then the range increases sufficiently to reach the destination, but the driving performance and comfort are reduced
Solution Approach 1:
The control unit performs preliminary calculations of the required range before making mode switching decisions. By calculating the range in advance based on destination information and current state of charge, the system can proactively switch to the appropriate mode to ensure sufficient range, rather than reacting after range insufficiency is detected.
Solution Approach 2:
The system implements a feedback mechanism where the control unit continuously monitors the state of charge, calculates the current range, compares it with the required range to the destination, and adjusts the driving mode accordingly. This closed-loop feedback ensures the vehicle maintains sufficient range while minimizing the impact on driving experience.
3Ease of operation
If the vehicle does not switch modes and continues in the first mode, then the driving experience is maintained, but the risk of insufficient range to reach the destination increases
Solution Approach 1:
The control unit automatically monitors the state of charge, calculates the range, and makes mode switching decisions without requiring manual intervention from the driver. The system serves itself by autonomously managing the driving mode to ensure sufficient range, thereby maintaining driving experience while reducing the risk of range insufficiency.
Solution Approach 2:
The system prepares for potential range insufficiency by calculating the required range in advance and switching to a power-saving mode before the range becomes critically low. This beforehand cushioning approach prevents the risk of insufficient range rather than reacting after the problem occurs.
4Duration of action of moving object
If the vehicle frequently switches between modes to optimize range, then the range management is improved, but the system complexity increases
Solution Approach 1:
The control unit extracts and processes only the essential information needed for mode switching decisions (state of charge, destination location, current mode) without requiring complex analysis of all vehicle parameters. By focusing on the critical factors, the system achieves effective range management while minimizing the added complexity.
Data Source
AI summary
Embodiments of this application provide a control method and apparatus, and a vehicle. The method includes: obtaining a state of charge of a battery; determining a first range of a vehicle in a first mode based on the state of charge; and when the first range is less than or equal to a first distance and a second range is greater than the first distance, controlling to switch a mode of the vehicle from the first mode to a second mode. The first distance is determined based on a target mileage of the vehicle, and the second range is a range corresponding to the state of charge of the vehicle in the second mode. Embodiments of this application can be applied to an intelligent vehicle or an electric vehicle, to help reduce a risk caused by an insufficient range, thereby helping improve driving experience of a user.