Vehicle Heat Allocation Control for Battery Warming and Cabin Heating
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Solution Overview
Problem
Existing heat management systems for vehicles do not effectively allocate heat between heating the battery and heating the cabin, leading to inefficiencies in temperature control.
Innovation Solution
A temperature control system with an air-conditioning circuit, battery temperature adjustment circuit, and heat exchanger, controlled by a controller to variably adjust the flow of heating media based on requests for battery temperature increase, cabin heating, and battery temperature, using a heat exchanger to optimize heat distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heat is allocated to both battery heating and cabin heating simultaneously, then both battery temperature and cabin temperature can be improved, but heat allocation efficiency deteriorates due to lack of dynamic adjustment
Solution Approach 1:
The patent implements dynamic flow amount adjustment for the battery heating medium based on real-time battery temperature feedback. The control unit varies the flow amount through the battery temperature adjustment circuit according to the battery's actual temperature state, transforming a static heat allocation system into a dynamic one that adapts to changing conditions, thereby improving heat allocation efficiency while maintaining battery temperature requirements.
Solution Approach 2:
The patent incorporates a thermometer to detect battery temperature and feeds this information back to the control unit. Based on this feedback, the control unit adjusts the flow amount of the battery heating medium dynamically. This closed-loop feedback mechanism enables the system to optimize heat allocation between battery heating and cabin heating, preventing energy waste while ensuring battery temperature requirements are met.
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
Effectively allocates heat for simultaneous battery warming and cabin heating, ensuring efficient temperature control during fast-charging and maintaining battery performance.
Implementation Method 1
a heat exchanger for exchanging heat between the air-conditioning heating medium and the battery heating medium
Implementation Method 2
the air-conditioning circuit includes a heating unit for heating the air-conditioning heating medium
Implementation Method 3
a battery temperature adjustment circuit for circulating a battery heating medium and for adjusting the temperature of the battery through heat exchange between the battery heating medium and the battery
Data Source
AI summary
A temperature control system includes an air-conditioning circuit, a battery temperature adjustment circuit, a heat exchanger, a thermometer, and a controller. The air-conditioning circuit includes a heating unit for heating the air-conditioning heating medium and an air-conditioning flow amount adjustment unit for adjusting the amount of flow of the air-conditioning heating medium. The battery temperature adjustment circuit includes a battery flow amount adjustment unit for adjusting the amount of flow of the battery heating medium. The controller variably controls the amount of flow of at least one of the air-conditioning heating medium and the battery heating medium, depending on a request for increasing the temperature of the battery, a request for heating the cabin of the vehicle, and the temperature of the battery.