New energy thermal management solution
Overview:
With the continuous development of new energy vehicle industry in the direction of developing technology and improving competitiveness under the incentive of national policies, the requirements of vehicle thermal management system are becoming higher and higher. The system has an important impact on vehicle performance, service life and durability. However, due to the complexity of the system, the design of vehicle thermal management system has always been a difficulty and research hotspot in the industry. With the increasingly fierce competition in the new energy vehicle market, shortening the R & D cycle and reducing the cost have become the problems that the R & D of new energy vehicles must face.
The typical new energy vehicle thermal management system includes air conditioning thermal management system, motor electronic control thermal management system and battery thermal management system. If it is a hybrid vehicle, it also includes the thermal management system of powertrain. The integrated design of multiple systems greatly increases the design difficulty and R & D cost. With the help of simulation technology, the design scheme can be analyzed, evaluated and optimized before the trial production of physical prototype in the early design stage of vehicle R & D, so as to reduce the rounds of sample trial production and test, and reduce the cost and shorten the R & D cycle.
Battery thermal analysis:
Based on the core heating test data, the thermoelectric coupling model of the core is established. Through this model, the heat generation and temperature rise of the core at different temperatures and SOC can be accurately obtained, which provides a reliable core level model for pack level thermal analysis. Considering that the working conditions of the battery pack are transient conditions, and the traditional CFD method has low transient calculation efficiency, the thermal flow coupling analysis method can be used to analyze the battery pack under the working conditions of high-temperature fast charge, low-temperature heating fast charge, low-temperature heating slow charge, high-temperature 30 minute vehicle speed, high-temperature fast charge + 30 min vehicle speed, etc.
Thermal analysis of electric motor：
The heat loss is obtained based on the working condition of motor electronic control, and the detailed 3D thermal analysis of motor electronic control is carried out with the heat loss as the input, the heat dissipation scheme of motor electronic control is evaluated, and the key design parameters are automatically optimized to realize the matching of heat dissipation performance and pump power consumption.
Vehicle system thermal management:
The design of vehicle thermal management system includes architecture design and parts selection. Based on the requirements of system integration and low energy consumption, the architecture of thermal management system is designed; Based on the thermal management system architecture and combined with the parts bench test data provided by the supplier, the whole vehicle thermal management system model is established to realize rapid system matching analysis and parts selection optimization through the model.
Thermal comfort analysis of passenger compartment:
Using the human body adjustment model of human thermal comfort module, we can consider height, weight, gender, activity level and self adjustment, simulate human heat generation, analyze the changes of human thermal comfort, simulate the refrigeration evaluation of air conditioning after car exposure, and intuitively evaluate the temperature control ability of air conditioning by using human thermal comfort index.
Thermal solution design is very important in many industry， if you need any thermal solutions help or thermal products ODM/OEM customization service , please directly contact with Sinda Thermal team, we will provide you the high efficiency and quality product and service.
