低频噪声的来源主要是由发动机振动，悬架系统振动所引起的车身板件振动产生的辐射噪声。
The primary source of the low frequency acoustics is the radiating noise produced by the vehicle structural vibration, which is induced by the vibrating of the engine and the suspension system.
本文首先建立用于电子稳定程序的汽车模型，包括车身模型、悬架模型、转向模型、轮胎模型、制动系统模型、发动机模型和传动系模型。
In this paper we firstly build a vehicle dynamic model, including vehicle body, suspension system, steering system, tire model, braking system, engine model and transmission model.
运用CAN总线，设计了商用车发动机系统、悬架系统、车身系统的信号采集电路。
The application of CAN-bus on the data acquisition of commercial vehicle is narrated and the data acquisition circuit of engine, suspension system and body system are designed.
运用CAN总线，设计了商用车发动机系统、悬架系统、车身系统的信号采集电路。
The application of CAN-bus on the data acquisition of commercial vehicle is narrated and the data acquisition circuit of engine, suspension system and body system are designed.
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