Vehicle Thermal Management via Predictive Heat Exchange
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Solution Overview
Problem
Current thermal management systems in vehicles are inefficient, leading to delays in reaching optimal temperatures and excessive heat venting, as they rely solely on reactionary temperature adjustments and individual coolant system control.
Innovation Solution
Implementing a centralized heat exchanger that controls the flow of coolant between different systems, such as the engine, battery, and inverter system controller coolant systems, based on estimated temperatures and dynamic vehicle conditions, allowing for predictive and proactive temperature adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If reactionary thermal management is used based on current component temperatures, then the system structure remains simple, but the time to reach optimal temperature increases and operational efficiency decreases
Solution Approach 1:
The thermal management system performs preliminary actions by predicting future temperature requirements based on drive cycle analysis and proactive thermal management strategies. The system anticipates upcoming heating or cooling needs and adjusts coolant flow and heat exchanger operation in advance, rather than reacting only when temperature thresholds are exceeded. This reduces the time to reach optimal operating temperatures while maintaining manageable system complexity through software-based prediction algorithms.
2Adaptability or versatility
If individual coolant systems are controlled separately, then each system can be optimized independently, but excess heat is vented to atmosphere while other systems struggle to warm up
Solution Approach 1:
The thermal management system merges previously separate coolant control decisions into a unified, vehicle-wide thermal network. The system analyzes thermal states across engine, battery, and other coolant systems simultaneously, enabling heat transfer opportunities between systems that were previously isolated. This centralized approach allows excess heat from one system to be redirected to another system needing heating, eliminating wasteful heat venting while preserving the ability to optimize individual systems through coordinated control.
Solution Approach 2:
The system introduces a central thermal management controller as an intermediary that mediates heat exchange between different coolant systems. This controller acts as a smart router, directing coolant flow through appropriate heat exchangers to transfer thermal energy from systems with excess heat to systems requiring heating. The intermediary enables dynamic thermal sharing across the vehicle without requiring physical integration of all coolant systems.
3Productivity
If proactive thermal management based on predicted conditions is implemented, then the time to reach optimal temperature is reduced and energy efficiency improves, but the system complexity and control requirements increase
Solution Approach 1:
The proactive thermal management system incorporates continuous feedback loops that monitor actual temperature measurements against predicted thermal states. The control algorithm compares anticipated temperature requirements with real-time sensor data, adjusting coolant flow rates and heat exchanger operations dynamically. This feedback mechanism enables the system to maintain high operational efficiency by correcting deviations from predicted optimal performance while managing complexity through established control theory principles.
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
This approach reduces delays in reaching ideal coolant temperatures, minimizes wasted heat, and enhances vehicle efficiency by preheating or cooling components proactively, thereby improving operational efficiency and reducing energy consumption.
Implementation Method 1
controlling a flow of coolant from each of a first coolant system and a second coolant system through a heat exchanger
Implementation Method 2
coolant from a battery coolant system and/or an inverter system controller (ISC) coolant system may be selectively routed to the heat exchanger to be heated or cooled by coolant from an engine coolant system
Data Source
AI summary
Methods and systems are provided for providing thermal management for components of a vehicle. In one example, a method may include exchanging heat between different coolant systems via a heat exchanger using predicted data indicating estimated coolant temperatures for a vehicle trip and measured data indicating dynamic conditions for the vehicle trip.