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AIR BAG SYSTEM 08–10–5 08–10 SAS CONTROL MODULE FUNCTION E5U081057030N01 Outline • A two-step air bag deployment control system has been adopted. In case of a frontal or frontal offset collision, an optimal air bag deployment force is matched to the impact force. The inflators for the driver and passenger- • A drip-proof sheet has been installed to the connector for improved waterfroofing. End Of Sie SAS CONTROL MODULE CONSTRUCTION/OPERATION E5U081057030N02 Front Air Bag System (Two-Step Deployment Control) 1. During a frontal or frontal offset collision, the crash sensors in the crash zone sensor and the SAS control module detect the impact. 2. The level of impact detected by the crash sensors in the crash zone sensor is converted to an electric signal and sent to the SAS control module. 3. Simultaneously, the SAS control module crash sensor converts the level of impact detected to an electrical signal. 4. The SAS control module processes the calculations for the two electrical signals at the output control circuit and compares the value to a preset value. 5. The output control circuit determines the level of impact to the vehicle by the value from the crash sensors, completes an inflator No.1 or inflator No.2 ignition circuit, and sends the deployment signal to the air bag 6. The SAS control module completes an ignition circuit for the pre-tensioner seat belts that is synchronized to the deployment of the driver and passenger-side air bag modules, and an operation (deployment) signal is sent to No. Level of collision force Air bag module deployment force Inflator deployment pattern 1 Large Large Inflator No.1 and inflator No.2 deploy. 2 Small Small Inflator No.1 deploys. SAS CONTROL MODULE CRASH ZONE SENSOR CRASH CRASH SIGNAL OUTPUT FRONT AIR BAG MODULE INFLATOR NO.1 INFLATOR NO.2 DRIVER OR PASSENGER-SIDE C3U0810S601 |