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近年来,主动消声技术被用于多种柴油车和汽油车的进、排气系统。在前期的开发过程中,对主动元器件(执行器、电子硬件和软件)进行了严格改进,并对其耐久性进行了专业验证,即使在非常恶劣的条件下,系统的性能亦有所改善。根据不同用户的目标要求,与常规排气系统相比,获得了相应的效益。例如,可以用主动单排气系统替代高效4缸汽油机被动常规双排气系统,它既不会对声学目标产生负面影响,也不会影响大幅节省设计空间和减轻质量目标的实现。特别是可利用空间优势实现创新的排气系统布置。为了支持未来发动机的缩缸强化,提出了一种超紧凑的排气布置。通过将排气系统的所有零件集中到发动机附近,例如将其集成在发动机机舱内,以进一步腾出车底空间,为安装其他设备(例如油-电混合动力车的电池)或优化车底流动性提供条件。因此,采用主动排气技术可以实现车辆设计的总体优化,并有可能最终支持二氧化碳排放更低且采用缩缸强化和混合动力发动机的未来汽车。
In recent years, active noise reduction technology has been used in a variety of diesel and gasoline car intake and exhaust systems. In the early stages of development, active components (actuators, electronic hardware and software) were rigorously improved and their durability was professionally verified to improve system performance even under very harsh conditions . According to the target of different users, compared with the conventional exhaust system, obtained the corresponding benefits. For example, an active single-exhaust system can be substituted for a high-efficiency, four-cylinder petrol passive conventional dual exhaust system that does not adversely affect acoustic targets or substantially reduce design space and reduce quality objectives. In particular, innovative exhaust system layouts can be achieved with space advantages. In order to support the shrinkage of the engine in the future, an ultra-compact exhaust arrangement is proposed. By centralizing all parts of the exhaust system close to the engine, for example by integrating it in the nacelle, to further freeing the undercarriage space for the installation of other equipment such as batteries for oil-electric hybrid vehicles or to optimize the undercarriage flow Sex provides conditions. Therefore, the use of active exhaust technology can achieve the overall optimization of vehicle design, and may eventually support future cars with lower carbon dioxide emissions and reduced capacity and hybrid engines.