Autonomous Driving Battery Current Control for Internal Resistance Changes
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Solution Overview
Problem
Existing autonomous driving systems in electric vehicles do not effectively manage energy consumption, leading to inefficient battery use and increased greenhouse gas emissions due to inadequate consideration of driving environment and condition changes, which affects energy loss.
Innovation Solution
A computing system that integrates autonomous driving control with energy management, predicting battery internal resistance changes based on driving data and setting optimal output currents to improve energy efficiency by adjusting battery output in real-time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If battery output current is set conservatively to a very high level without considering driving environment changes, then the autonomous driving system can maintain sufficient power supply, but energy consumption increases and battery efficiency deteriorates
Solution Approach 1:
The patent implements dynamic adjustment of battery output current based on real-time driving environment parameters (temperature, humidity, road slope, vehicle speed). The energy management unit continuously monitors these parameters and adjusts the battery output current accordingly, transitioning from a static conservative setting to a dynamic optimized setting that adapts to changing conditions.
Solution Approach 2:
The system establishes a feedback loop where the energy management unit receives driving environment information, calculates optimal battery output current, and adjusts the power supply in real-time. This closed-loop control ensures that the battery output is continuously optimized based on actual driving conditions, preventing both energy waste and power deficiency.
2Adaptability or versatility
If battery output current is adjusted ex post facto after driving environment changes, then the system responds to conditions, but energy loss has already occurred and efficiency is reduced
Solution Approach 1:
The energy management unit performs preliminary calculation of optimal battery output current based on predicted driving environment changes. By anticipating future conditions (such as upcoming slopes or temperature changes), the system adjusts the battery output in advance, preventing energy loss before it occurs rather than reacting after the fact.
Solution Approach 2:
The system transitions from delayed ex post facto adjustment to real-time dynamic adjustment. The continuous monitoring and immediate response mechanism ensures that battery output is optimized at each moment based on current driving conditions, eliminating the time lag that causes energy loss.
3Device complexity
If autonomous driving controller operates independently without energy management unit, then autonomous driving control is simplified, but energy efficiency deteriorates and greenhouse gas emissions increase
Solution Approach 1:
The patent merges the autonomous driving controller and energy management unit into an integrated system. The energy management unit works in conjunction with the autonomous driving controller, sharing data and coordination to optimize both driving performance and energy efficiency simultaneously, rather than operating as separate independent systems.
Solution Approach 2:
The integrated system performs multiple functions: autonomous driving control, energy management, and emission reduction. By combining these functions into a unified control architecture, the system achieves multi-functionality without proportionally increasing complexity, as the components work synergistically rather than additively.
Data Source
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AI summary
A computing system according to an embodiment of the present disclosure comprises: an autonomous driving controller configured to control autonomous driving of a vehicle, including setting an output of a driving system of the vehicle; and an energy management unit configured to: determine a change in an internal resistance of a battery included in the vehicle based on driving data of the vehicle and battery data of the battery; and set an output current of the battery for the set output of the driving system based on the determined change in the internal resistance.