Collision detection
Shock sensor:
The impact sensors are located at the front and sides of the vehicle. When the ignition is turned on, the RCM (Rider and Passenger Control Module) supplies power to the impact sensors, which perform a self-diagnosis procedure. After completing the self-diagnosis procedure, the impact sensors continuously send a "digital acceleration" message to the SRS control unit. The use of multiple sensors allows for faster airbag activation, as longitudinal and lateral acceleration is detected more quickly. In addition, the accuracy of impact detection is improved.
Each impact sensor includes an accelerometer and a microchip that receives power from the occupant protection control unit. The lateral acceleration during an impact is calculated by the microchip and transmitted to the RCM. Based on this data, the RCM decides whether to activate the airbags and pretensioners.
If a fault is detected by the sensor, instead of sending a digital acceleration message, the sensor sends a fault message to the SRS control unit. The RCM stores the relevant fault code and illuminates the airbag indicator lamp. Fault codes can be retrieved from the RCM using the Land Rover approved diagnostic system via a high speed CAN bus connection.
The article was copied from the website: lrman.ru
Monitoring the condition of the driver and passengers
Cars are equipped with two types of control systems:
- For North America it is set passenger classification system.
- For markets other than North America and Australia, passenger presence detection system.
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