菱电电控：自今年以来公司持续提升研发效率

Group 1 - The core viewpoint of the article highlights that the company's revenue changes are influenced by the sales volume of downstream customer vehicle models [1] - The company has been continuously improving research and development efficiency since the beginning of the year [1] - The company has strengthened cost management and enhanced performance assessments across various business segments, leading to a significant increase in profits [1]