中国汽研申请基于正碰壁障标定试验的管柱冲击器结构优化方法专利，解决现有技术中圆柱形管柱冲击器在正碰壁障试验中标定结果准确性有偏差的问题

Group 1 - The China Automotive Engineering Research Institute Co., Ltd. has applied for a patent titled "A Structural Optimization Method for Column Shock Absorbers Based on Positive Impact Wall Calibration Tests" [1] - The patent application was filed on March 2025, and the publication number is CN120217553A [1] - The invention focuses on optimizing the structure of column shock absorbers by collecting and standardizing structural parameters of mainstream vehicle models [1] Group 2 - The China Automotive Engineering Research Institute Co., Ltd. was established in 2001 and is located in Chongqing, primarily engaged in professional technical services [2] - The company has a registered capital of 1,004.18 million RMB [2] - The company has invested in 36 enterprises, participated in 5,000 bidding projects, and holds 1,790 patents [2]