Vehicle Air-Conditioning System with Predictive Temperature Control
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Solution Overview
Problem
Existing air-conditioning systems for vehicles face challenges in efficiently controlling the temperature of both vehicle interiors and equipment, such as motors and batteries, while optimizing energy use and maintaining optimal operating conditions for electric vehicles.
Innovation Solution
An air-conditioning system that includes a temperature detection unit, a controller, a prediction unit, and a target temperature change unit, which predicts future temperatures based on vehicle driving states and travel plans to adjust the target temperatures of cooling media within the system, thereby optimizing cooling and heating operations across refrigeration and cooling circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single air-conditioning system is used to cool both equipment and air-condition the vehicle interior, then system complexity is reduced, but temperature control precision for both equipment and interior deteriorates
Solution Approach 1:
The patent divides the temperature control system into separate equipment cooling circuit and air-conditioning circuit, each with independent temperature detection and control. The equipment cooling circuit includes temperature detection unit (63) and control for equipment temperature, while the air-conditioning circuit includes temperature detection unit (62) and control for vehicle interior temperature. This segmentation allows precise temperature control for both equipment and interior while maintaining a unified system architecture.
2Reliability
If target temperature is adjusted based on predicted future temperature, then temperature control effectiveness is improved, but control system complexity increases
Solution Approach 1:
The patent implements preliminary temperature adjustment by predicting future equipment temperature and vehicle interior temperature, then proactively adjusting the target temperature before the actual temperature deviation occurs. The prediction unit forecasts temperature changes based on current conditions, and the target temperature change unit pre-adjusts the target temperature accordingly. This preliminary action ensures more effective temperature control while adding only moderate complexity through software-based prediction algorithms.
3Productivity
If cooling medium target temperature is lowered to improve equipment cooling efficiency, then equipment cooling performance is improved, but energy consumption increases
Solution Approach 1:
The patent dynamically adjusts the cooling medium target temperature based on predicted equipment temperature and actual temperature conditions. Instead of maintaining a constantly low target temperature, the system optimizes the target temperature parameter according to real-time needs. When equipment temperature approaches target temperature, the system adjusts the cooling medium target temperature to prevent excessive cooling, thereby improving cooling efficiency while reducing unnecessary energy consumption.
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 system enables efficient cooling and heating of vehicle interiors and equipment, optimizing energy use and extending the travel distance of electric vehicles by effectively managing temperature control, reducing equipment costs, and enhancing operational efficiency.
Implementation Method 1
a first heat exchanger that exchanges heat between the first cooling medium and external air
Implementation Method 2
exchanges heat between the first cooling medium and external air
Implementation Method 3
a second heat exchanger that exchanges heat between the first cooling medium and the second cooling medium
Implementation Method 4
exchanges heat between the first cooling medium and the second cooling medium
Implementation Method 5
a compressor that compresses a first cooling medium
Implementation Method 6
a cooling circuit that circulates a second cooling medium to the temperature controlling object to perform cooling/air-heating of the temperature controlling object
Data Source
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AI summary
An air-conditioning system for a vehicle for performing cooling/air-heating of a temperature controlling object includes: a temperature detection unit 63 that detects a temperature of the temperature controlling object; a controller 61 that controls the air-conditioning system based on a temperature detected by the temperature detection unit 63; a prediction unit 61 that predicts a forward temperature of the temperature controlling object based on at least either one of a detected temperature detected by the temperature detection unit 63 and a current vehicle driving state; a target temperature change unit 61 that changes a target temperature of the temperature controlling object or a target temperature of a cooling medium in the air-conditioning system for a vehicle based on a result of prediction by the prediction unit 61; wherein the controller 61 controls cooling/air-heating of the temperature controlling object based on a target temperature changed by the target temperature change unit 61.