理想TOP2·2025-05-01 13:08Core Viewpoint - Li Auto excels in practical user experience without emotional value, focusing on continuous iteration based on user feedback [1] Group 1: Background and Challenges - Li Auto held a winter driving technology day to address winter driving issues, particularly the discomfort caused by cold cabin temperatures [1][2] - The main challenge in enhancing winter driving comfort lies in the slow heating and uneven temperature distribution within the cabin [1][2] Group 2: Innovative Solutions - The company has developed a self-researched multi-source heat pump system with 51 sensors to ensure effective heating across various conditions [3] - The dual-layer air conditioning box design helps mitigate the common issue of fogging on windows while maintaining cabin warmth [6][7] - Li Auto's heat management system includes a dedicated design for recovering electric drive waste heat, improving energy efficiency by 12% [8] - The design allows for the storage of excess heat in the battery during high-speed driving, which can be utilized later in congested conditions [10] Group 3: Efficiency and Integration - The highly integrated design of the heat management system reduces component count and thermal losses, achieving significant efficiency improvements [11] - The intelligent pre-cooling and pre-heating algorithm ensures optimal battery temperature before charging, with a precision of less than 1°C [13][14] - The innovative cooling design of the battery enhances both cooling efficiency and heating capabilities, improving user experience in cold environments [14]