The Move Toward Systematic Design: E-Mobility is changing the gear market at an incredibly rapid pace, and the software is adapting to meet these new challenges

摘要

Electrification is everywhere-from the cutting tools to the machine tools as well as the gear noise analysis and the new transmission technologies-we're living in a world of E-mobility. The software is no exception. Many of the gear design software suites available from the likes of GWJ Technology, Dontyne, KISSsoft, Romax Technology and SMT have been carefully prepping for the electrification trend as well as the slow and steady move toward systematic design in gear manufacturing. The Electrification Movement. In general, electrification has changed how vehicle engineers think about noise, according to Paul Langlois, software engineering director at SMT. "With IC engines, the combustion noise masked gear noise to some extent. In electric vehicles this is no longer the case. This has played into a strength of the MASTA software which already had exceptional accuracy in the analysis and prediction of NVH issues. What we have added is the ability to look at the full powertrain system and understand excitation from the gear and the electric motor and the response of the system model. The focus on noise means that the majority of EV transmission gears are finish ground rather than shaved or honed. Using a generating grind system (worm grinding) can introduce other complications such as adverse bias or profile hollows if the gear design and the manufacturing process are not aligned properly. The manufacturing modules in the MASTA software, which SMT have been refining for nearly 20 years, can help designers get to the right solution faster," Langlois said.