Thermal management device
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Solution Overview
Problem
In thermal management devices, increased heat dissipation in one heat dissipation device can lead to insufficient coolant cooling capacity in other devices, affecting engine output and vehicle drivability.
Innovation Solution
A thermal management device with multiple heat dissipation devices and a control unit that adjusts the flow rate of the heat medium through one device when increased heat dissipation is detected, ensuring that the heat dissipation capacity is maintained by prioritizing intake-air cooling and using cold storage functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the flow rate of coolant through the intercooler is increased to maintain heat dissipation capacity, then the heat dissipation capacity is maintained, but the coolant temperature rises affecting other heat dissipation devices
Solution Approach 1:
The patent changes the flow rate parameter of the coolant dynamically based on operating conditions. The control unit monitors system state and adjusts the coolant flow rate through the intercooler using a flow-rate adjustment device, optimizing the balance between maintaining heat dissipation capacity and controlling coolant temperature to prevent adverse effects on other heat dissipation devices.
2Device complexity
If multiple heat dissipation devices share the same coolant circuit, then the system complexity is reduced, but the heat dissipation capacity of individual devices becomes insufficient when one device requires high heat dissipation
Solution Approach 1:
The patent applies local quality by providing a flow-rate adjustment device specifically at the intercooler location within the shared coolant circuit. This allows localized control of coolant flow to the intercooler without affecting the overall simple circuit configuration. The control unit can independently adjust the flow rate to the intercooler based on its specific heat dissipation needs while other heat dissipation devices continue to operate with the remaining coolant flow, maintaining both system simplicity and individual device reliability.
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 solution prevents the heat dissipation capacity of one device from becoming insufficient, maintaining engine output and vehicle drivability by dynamically adjusting coolant flow rates and utilizing cold storage to maintain cooling comfort.
Implementation Method 1
two or more heat dissipation devices that dissipate heat into a heat medium
Implementation Method 2
a heat medium-air heat exchanger that exchanges heat between air and the heat medium having heat dissipated in the two or more heat dissipation devices
Data Source
AI summary
A thermal management device includes two or more heat dissipation devices that dissipate heat into a heat medium, a heat medium-air heat exchanger that exchanges heat between air and the heat medium having its heat dissipated in the two or more heat dissipation devices, a flow-rate adjustment device that adjusts a flow rate of the heat medium flowing through the heat dissipation device, and a control unit. The control unit controls an operation of the flow-rate adjustment device to increase the flow rate of the heat medium flowing through the one heat dissipation device, if the control unit estimates an increase in the amount of heat dissipation into the heat medium at the one heat dissipation device of the two or more heat dissipation devices.