Research on IPPD method of automotive clutch

Abstract

Automobile clutch is an important starting element of automobile transmission system. The traditional design method does not integrate the performance requirements, product characteristics, process flow and process capabilities organically in the whole product development process, and does not consider the reasonable tolerance range of clutch product parameters and the size changes within the life cycle, so it is difficult to meet the requirements of clutch torque transmission capacity and pedal control characteristics in large-scale production. By establishing the IPPD (integrated product and process design) method of automobile clutch based on function-product characteristics-process-process capability, the influence of clutch product characteristics and process parameter tolerances on torque transmission capability and pedal control capability was analyzed, and the method of establishing accurate transmission system dynamics model was proposed. The mapping relationship between torque transmission capability, pedal control characteristics and product characteristics and process parameter tolerance was given; under the condition of meeting the design requirements of manufacturability and assemblability, a cycle mapping relationship of product characteristics and process flow and parameter changes was established, and a robust tolerance design method based on process capability was adopted to optimize the process scheme and process parameters. The proposed clutch IPPD method can better enable the product to meet the performance requirements, thus providing support for improving the design accuracy and reliability of the clutch, and establishing a foundation for the intelligent design of the clutch.