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该论文提出了一种用于电子稳定性控制的全差分电荷平衡加速度计,通过改进电磁干扰(EMI)抗扰度,实现了在未屏蔽模塑封装中的可靠运行,满足发动机舱内恶劣环境下的ESC规范要求。
in a broad range of vehicles [1]. The demand for lower cost and higher integration continues to increase the performance requirements for many of the system’s components. In particular, the trend towards placing the Inertial Measurement Unit inside the engine compartment requires operation under harsh conditions, while the costly options of shielding and vibration damping are limited. This paper presents a fully differential accelerometer with improved immunity to electromagnetic interference (EMI). The sensor operates in an unshielded molded package, and is compliant with the ESC specifications. Figure 22.1.1 shows a block diagram of the system. The interface between the mechanical sensor element and the readout IC is the dominant path for EMI. Therefore, differential signaling across the interface is an important first step towards rejecting sp
Vladimir P Petkov1, Ganesh K Balachandran1, Jochen Beintner2
Robert Bosch, Palo Alto, CA, Robert Bosch, Reutlingen, Germany 1 2 Electronic Stability Control (ESC) has been mandated as a standard feature