The low frequency acoustic design for an automobile body structure is very important to improve the carborne acoustic comfortability and to enhance the competitiveness for the car products in market.

身结构低频声学设计以提高辆乘坐声学舒适性为目，对于增产品市场力具有十分重要意义。

Carborne information system is the integration of all the electronic equipments of the car, it mainly consists of carborne information display system and malfunction diagnosis system.

载信息系统是上电子设备综合，它主要包括信息显示和故障诊断两大类。