aPLI Legform
Publishdate：2025-12-12 Views：13
aPLI Legform Impactor
The aPLI legform impactor is a biomechanical simulation device used for automotive pedestrian protection testing. It is designed to simulate the injury response of pedestrian legs during crash. Its design is based on the biomechanical characteristics of adult lower limbs. With a total mass of 25kg and a total length of 1096mm, it consists of skin, muscle, thigh, lower leg, knee, and upper body modules. The upper body module enhances the authenticity of mass distribution to better mimic the structure of the human leg.
Compared to the Flex-PLI legform impactor, the addition of a module simulating upper body mass and a mechanical hip joint enhances overall biological fidelity, particularly in accurately assessing the risk of thigh fractures during crash with high-bumper vehicles such as SUVs. This also addresses the shortcoming of Flex-PLI, which lacks upper body mass, resulting in inaccurate assessment of thigh bending moments.
The leg impactor has been proposed since 2015, adopted by Euro NCAP in version 8.0, introduced by China's C-NCAP in 2021, and officially used for evaluation in 2022. The International Organization for Standardization (ISO) has issued a specific technical specification, ISO/TS 20458, which details the design, performance, mechanical requirements, and certification testing procedures for aPLI.
Currently, the design drawings for JASTI's aPLI leg impactor are undergoing prototype development.
aPLI Legform Impactor
The aPLI legform impactor is a biomechanical simulation device used for automotive pedestrian protection testing. It is designed to simulate the injury response of pedestrian legs during crash. Its design is based on the biomechanical characteristics of adult lower limbs. With a total mass of 25kg and a total length of 1096mm, it consists of skin, muscle, thigh, lower leg, knee, and upper body modules. The upper body module enhances the authenticity of mass distribution to better mimic the structure of the human leg.
Compared to the Flex-PLI legform impactor, the addition of a module simulating upper body mass and a mechanical hip joint enhances overall biological fidelity, particularly in accurately assessing the risk of thigh fractures during crash with high-bumper vehicles such as SUVs. This also addresses the shortcoming of Flex-PLI, which lacks upper body mass, resulting in inaccurate assessment of thigh bending moments.
The leg impactor has been proposed since 2015, adopted by Euro NCAP in version 8.0, introduced by China's C-NCAP in 2021, and officially used for evaluation in 2022. The International Organization for Standardization (ISO) has issued a specific technical specification, ISO/TS 20458, which details the design, performance, mechanical requirements, and certification testing procedures for aPLI.
Currently, the design drawings for JASTI's aPLI leg impactor are undergoing prototype development.
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