A method and system for generating durability load spectrum of a two-speed electric off-road vehicle gearbox
By establishing a two-speed electric off-road vehicle durability simulation model and load spectrum calculation method, a gearbox load spectrum matching the operating conditions of the electric off-road vehicle is generated. This solves the problem of large differences between the load spectrum and actual customer driving fatigue damage in the existing technology, and realizes the durability verification and experimental validation of the gearbox.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHIXIN TECH CO LTD
- Filing Date
- 2022-09-28
- Publication Date
- 2026-05-26
AI Technical Summary
Existing technologies struggle to generate load spectra for two-speed transmissions that match the operating conditions of electric off-road vehicles, resulting in significant discrepancies between the load spectra and actual customer driving fatigue damage, thus failing to meet the requirements for durability verification and experimental validation.
By establishing a two-speed electric off-road vehicle durability simulation model, recording real-time data, obtaining the design verification load spectrum, and calculating the load spectrum under each working condition based on the Palmgren-Miner linear damage accumulation theory, the bench test load spectrum of the shaft gear and shifting system is generated.
It enables equivalent damage calculation and life prediction based on load spectrum, improves development efficiency, and meets the durability verification and test validation requirements of the two-speed electric off-road vehicle gearbox project.
Smart Images
Figure CN115587482B_ABST