Electric Drivetrain Heat Management for Intensive Use and Fast Charging
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Solution Overview
Problem
Conventional cooling systems for electric drive trains in hybrid or electric vehicles are insufficient for intensive use scenarios, leading to limited performance and reduced durability due to inadequate heat management, especially during fast charging phases and sport modes.
Innovation Solution
A method and system for managing heat treatment in electric drive trains that detect intensive use, measure and adjust temperatures, calculate energy consumption, and allocate power to maintain optimal operating temperatures, anticipating and correcting deviations to ensure efficient performance and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cooling systems are used to limit battery heating during fast charging, then battery temperature is controlled, but the system cannot ensure optimal performance levels during intensive use because heat treatment is only activated when overheating is detected
Solution Approach 1:
The system performs preliminary heat treatment of the battery module before intensive use begins. When the system detects that the vehicle is about to enter intensive use mode (through user selection or automatic detection of driving parameters), it proactively cools the battery module to optimal temperature ranges, rather than waiting for overheating to occur. This preliminary action ensures that the battery is ready to deliver optimal performance throughout the entire intensive use duration.
Solution Approach 2:
The system continuously monitors battery temperature, driving parameters, and cooling system performance in real-time. Based on this feedback, the control unit dynamically adjusts cooling activation thresholds and intensity. The system learns from past intensive use patterns and temperature responses to optimize cooling strategies, ensuring optimal performance while extending the duration of intensive use capability.
2Use of energy by moving object
If heat treatment is activated only when heating-up likely to affect durability is detected, then energy consumption is reduced, but performance level is limited and duration of intensive use is reduced
Solution Approach 1:
The system activates cooling preemptively based on predicted intensive use scenarios rather than waiting for temperature thresholds to be exceeded. By detecting intentions to enter intensive use mode in advance (through mode selection or driving pattern analysis), the system prepares the battery temperature in advance, ensuring optimal performance is maintained throughout the intensive use period without excessive energy consumption during the actual high-performance driving.
Solution Approach 2:
The cooling activation threshold is made dynamic rather than fixed. The system adjusts the threshold based on multiple factors including current battery temperature, state of charge, external temperature, and detected or predicted intensive use scenarios. This dynamic approach allows the system to consume energy efficiently during normal operation while ensuring optimal cooling performance is available when needed for intensive use.
3Reliability
If cooling systems are designed for fast charging phases, then battery temperature is controlled during charging, but the systems are insufficient for intensive use scenarios requiring significant power
Solution Approach 1:
The cooling system is designed and controlled to serve multiple functions: it effectively cools the battery during fast charging phases and also provides optimal temperature management during intensive use scenarios. The control unit detects both charging modes and intensive driving modes, and adjusts cooling activation and intensity appropriately for each scenario, making the single cooling system versatile enough to handle both thermal management challenges.
Solution Approach 2:
The system changes operational parameters based on the detected scenario. During fast charging, cooling is activated based on charging rate and battery temperature. During intensive use, the system detects driving parameters (acceleration, speed, load) and adjusts cooling activation thresholds and intensity accordingly. This parameter adaptation allows the same cooling infrastructure to effectively address different thermal management needs across various operating scenarios.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively anticipates and manages heat treatment needs during intensive use, optimizing performance and prolonging the duration of such use while preserving the durability of electric drive train components.
Implementation Method 1
The vehicle is equipped with one or more cooling systems of at least one element of the electric drive train
Implementation Method 2
The known cooling systems are particularly focused on the heat treatment of the battery module
Data Source
AI summary
The invention relates to a management system and method for the heat treatment of at least one element of a drive train of an electric or hybrid motor vehicle so as to optimize the performance of the vehicle for intensive use being carried out or planned.