To develop an electric powertrain with a minimum noise level and minimized whining it is necessary to have accurate CAE simulation and precise criteria to assess whining noise.
Powertrain experts detailed the technologies they see as most promising to enable light-vehicle engines to meet global CO2 regulations through 2025, at the 2016 SAE High-Efficiency IC Engines Symposiumt. The list includes growing use of the Miller and Atkinson thermodynamic cycles, cooled EGR, and water injection, as well as variable compression ratio systems, dedicated EGR, and divided exhaust boosting.
Can a supercharger with a mechanical variable speed drive give a downsized engine the performance “feel” of a larger-displacement, naturally-aspirated unit without sacrificing efficiency? A joint U.K. research project aims to find out.
Mainstream media outlets heavily touted vehicle-to-vehicle/-infrastructure (referred to as V2X) communications after a recent NHTSA endorsement. Often overlooked are technical challenges that still must be overcome before V2X can make any real impact.
The chief technical officer of simulation giant VI-grade says that even as it offers a wide range of solutions, some companies are slow to believe in the proven reductions in development time and cost.
Possibly one of the most significant things to so far come out of Auto Shenghai 2017 was courtesy of Volkswagen with the introduction of the I.D. CROZZ concept—the company’s first electrically powered crossover utility vehicle (CUV) based off the new Modular Electric Drive Matrix (MEB).
In Volkswagen's Virtual Engineering Laboratory, designers use gesture control to modify concepts via augmented reality. Now, it can also be used by owners of the new Golf; claimed as a first in its segment,.
Engineers should expect government regulators in the U.S. and Europe to more strictly enforce existing rules and tighten emission-testing protocols, close gaps between laboratory and real-world testing, and perform more spot checks that can catch abuse after new vehicle models are approved for sale.
Volkswagen Group is on a technology blitz aimed at increasing overall vehicle efficiency. The IR-resistant dashboard materials and the 10-speed DSG transmission are in the production pipeline along with other innovations.