Electric Vehicle Driving Instructions for Temperature Management
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Solution Overview
Problem
Existing electric vehicle systems restrict driving variability by automatically reducing power consumption to prevent overheating, limiting driver control and acceptance of electric vehicles.
Innovation Solution
A method and device that generate driving instructions for electric vehicles based on route information and temperature effects, allowing drivers to maintain control over power consumption by providing advance warnings and suggestions for optimized acceleration and cooling, rather than relying solely on automatic power regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If automatic control intervention reduces power consumption to prevent overheating, then drive component temperature is controlled, but driver control and driving variability are restricted
Solution Approach 1:
The system performs preliminary calculations of temperature development along the driving route before the driver encounters overheating conditions. By predicting future temperature states based on route profile, ambient temperature, and driving behavior, the system provides advance warnings to the driver, enabling preventive action without automatic intervention that would restrict driver control.
Solution Approach 2:
The system implements feedback by continuously monitoring current temperature, calculating predicted temperature development, and communicating this information back to the driver through warnings and recommendations. This feedback loop enables the driver to adjust driving behavior voluntarily while the system maintains readiness to provide automatic control intervention if the driver fails to respond, thus balancing driver control with temperature management.
2Reliability
If automatic derating is implemented to avoid overheating, then drive component protection is ensured, but driving experience and vehicle acceptance are reduced
Solution Approach 1:
The system calculates and communicates temperature-related driving restrictions to the driver in advance, before derating actually occurs. This preliminary information provision allows the driver to plan and adjust driving behavior to avoid power restrictions, thereby maintaining driving experience and vehicle acceptance while ensuring component protection through driver cooperation rather than forced derating.
Solution Approach 2:
The system introduces an intermediary communication layer between the temperature management system and the driver. Instead of directly imposing automatic derating that degrades driving experience, the system acts as an intermediary by providing predictions, warnings, and recommendations that mediate between component protection requirements and driver expectations, allowing the driver to voluntarily cooperate and maintain satisfactory driving experience.
3Temperature
If full automatic control of power consumption is implemented, then temperature management is optimized, but driver freedom and control are completely removed
Solution Approach 1:
The system enables the driver to serve themselves by providing all necessary temperature-related information (current state, predicted development, recommended actions) and allowing the driver to independently make driving decisions. The system performs self-service calculations and communications without requiring driver input, empowering the driver with knowledge to autonomously manage power consumption while maintaining full control freedom.
Solution Approach 2:
Instead of the system automatically controlling power consumption (traditional approach), the invention inverts the control paradigm by providing the driver with all necessary information and calculations, thereby transferring control to the driver. The system performs the computational work but deliberately avoids direct control intervention, allowing the driver to make informed decisions and maintain complete freedom of action.
Data Source
AI summary
A method for generating driving instructions for the driver of an electrically driven vehicle includes the following steps: (a) acquire route information for at least one route section of a driving route lying ahead of the vehicle, (b) determine temperature information, acting in a temperature-varying fashion on at least one drive component, for the at least one route section on the basis of the route information, and (c) output a driving instruction to the driver on the basis of the temperature information for the at least one route section.