Freescale's safety bladder system solution

Freescale's safety bladder system solution

The core element of the bladder system is a control device that combines a 16-bit or 32-bit MCU with a set of local acceleration sensors. Depending on the complexity of the system, additional satellite sensors provide auxiliary collision information through standardized sensor buses (such as Peripheral Sensor Interface 5 (PSI5) and Distributed System Interface (DSI)). Processed sensor input with dedicated multi-channel electric explosion driver circuit for exciting front, side and curtain airbags.


As an additional safety element, if the battery connection is lost in an accident, an efficient switch-mode power supply component keeps the system running for hundreds of milliseconds.



Freescale's safety bladder system solution block diagram

Products for bladder systems

Product Series

product

Explanation

32-bit MCU

• MPC560xP

• The main controller of sensor data processing

16-bit MCU

• S12XE

• S12XS

• S12XF

• S12P

• Safety companion controller for redundancy and watchdog function

8-bit MCU

• S08SG / SL

• Safety companion controller for redundancy and watchdog function

Analog and mixed signal integrated circuits

• MC33742

• MC33797

• MC33661, MC33902

• MC33780, MC33781, MC33784, MC33793

• System basis chip

• Detonator drive

• CAN / LIN transceiver

• DSI bus interface device

sensor

• MMA12xxEG, MA23xxEG,

MMA5xxxEG, MPXS100xEG,

MMA68xxQ, MA52xxW,

MMA81xxEG, MMA82xxEG

• Local acceleration sensor

• Local flip sensor

• Accelerating satellite sensors

• Pressure Sensor

Available tools

Evaluation boards, calibration solutions, reference designs, software libraries, AUTOSAR

Electrolytic capacitor

The electrolyte material inside the electrolytic capacitor, which has charge storage, is divided into positive and negative polarity, similar to the battery, and cannot be connected backwards.A metal substrate having an oxide film attached to a positive electrode and a negative electrode connected to an electrolyte (solid and non-solid) through a metal plate.

Nonpolar (dual polarity) electrolytic capacitor adopts double oxide film structure, similar to the two polar electrolytic capacitor after two connected to the cathode, the two electrodes of two metal plates respectively (both with oxide film), two groups of oxide film as the electrolyte in the middle.Polar electrolytic capacitors usually play the role of power filter, decoupling (like u), signal coupling, time constant setting and dc isolation in power circuit, medium frequency and low frequency circuit.Non-polar electrolytic capacitors are usually used in audio frequency divider circuit, television S correction circuit and starting circuit of single-phase motor.

Electrolytic Capacitor,Aluminum Electrolytic Capacitor,High Voltage Electrolytic Capacitor,12V Electronic Components Capacitor

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