Vehicle
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electric vehicle temperature adjustment systems switch between circulation and non-circulation states based on outside air temperature, potentially failing to appropriately cool the battery regardless of its temperature.
Innovation Solution
A vehicle with a temperature adjustment system that includes a first and second temperature adjustment circuit, a coupling passage, and a switching unit, where a control device selects between series, separate, and parallel cooling modes based on the battery's temperature, ensuring optimal cooling by managing heat medium circulation and exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the circulation state and non-circulation state are switched in accordance with the outside air temperature, then the temperature adjustment accuracy is improved, but the battery may not be appropriately cooled when the switching does not consider the battery temperature
Solution Approach 1:
The system dynamically switches between circulation and non-circulation states based on real-time battery temperature feedback rather than static outside air temperature conditions. The control device continuously monitors battery temperature and adjusts the switching unit accordingly, making the system adaptive to changing thermal conditions of the battery itself.
Solution Approach 2:
The invention implements a feedback control mechanism where the battery temperature is continuously measured and used as the basis for switching between circulation and non-circulation states. This closed-loop control ensures that the battery cooling system responds to actual battery thermal conditions rather than external environmental conditions alone.
2Loss of energy
If the heat medium circulates through the coupling circuit, then the temperature adjustment system can utilize outside air temperature for cooling, but the battery cooling may be insufficient when the battery requires active cooling regardless of outside temperature
Solution Approach 1:
The system dynamically adjusts the circulation state based on battery temperature requirements. When the battery temperature exceeds a predetermined threshold, the system switches to the non-circulation state to enable active cooling through the first temperature adjustment circuit, regardless of outside air temperature conditions. This ensures the battery receives appropriate cooling when needed.
Solution Approach 2:
The control device changes the operational parameters of the temperature adjustment system based on battery temperature. When battery temperature rises above the threshold, the system transitions from utilizing outside air cooling (circulation state) to active cooling mode (non-circulation state), changing the thermal management approach according to the battery's thermal state.
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 cools the battery by selecting modes based on its temperature, improving cooling performance compared to systems controlled by outside air temperature, thereby preventing battery overheating and deterioration.
Implementation Method 1
a first heat exchange unit configured to exchange heat between the heat medium and a heat medium for air conditioning
Implementation Method 2
a second heat exchange unit configured to exchange heat between the heat medium and an outside air
Data Source
AI summary
A vehicle includes a battery, an air conditioner, a first temperature adjustment circuit including a first pump and a chiller, a second temperature adjustment circuit including a second pump and a radiator, a coupling passage configured to connect the first temperature adjustment circuit and the second temperature adjustment circuit to form a coupling circuit, an electromagnetic switching valve configured to switch between a circulation state in which the heat medium can circulate through the coupling circuit and a non-circulation state in which the heat medium cannot circulate through the coupling circuit, a first temperature sensor configured to acquire a first temperature which is a temperature of the battery, and a control device configured to select any one mode of a plurality of modes in accordance with the first temperature.