Autoliv 627844200C

The Autoliv 627844200C is a high-precision impact sensor manufactured by Autoliv, a global leader in automotive safety systems. This sensor plays a critical role in vehicle safety systems, designed to detect rapid deceleration during a collision and provide essential data to the airbag control unit.

Application Scenarios:

During a frontal vehicle collision, the vehicle undergoes rapid deceleration. The Autoliv 627844200C sensor, typically located in the front crush zone or central area of the vehicle, detects this specific deceleration profile within milliseconds. It immediately sends a critical signal to the Airbag Control Unit (ACU). The ACU uses this data, often in conjunction with other sensors, to make a deterministic decision on whether to deploy the front airbags and seatbelt pretensioners. This precise and rapid response is vital for mitigating occupant injury during an impact.

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Technical Principles and Innovative Values:

· •Innovation Point 1: Advanced MEMS Sensing Element. The 627844200C utilizes Micro-Electro-Mechanical Systems (MEMS) technology, which provides high accuracy and reliability in a compact and robust package. This technology allows for precise measurement of acceleration changes, enabling the sensor to distinguish between a severe crash requiring airbag deployment and a minor impact or harsh braking event that does not.

· •Innovation Point 2: ASIC-Integrated Signal Processing. The sensor incorporates an Application-Specific Integrated Circuit (ASIC) that conditions the raw signal from the sensing element. This integrated processing enhances signal quality, provides built-in self-test capabilities, and ensures consistent performance, which is critical for functional safety.

· •Innovation Point 3: Robust and Sealed Design for Harsh Environments. The sensor is built to withstand the extreme conditions of an automotive environment, including temperature cycles, vibration, humidity, and chemical exposure. Its sealed housing ensures long-term reliability and performance, which is non-negotiable for safety-critical components.

Application Cases and Industry Value:

A leading automotive manufacturer was developing a new vehicle platform with a target of a 5-star safety rating. The integration of the Autoliv 627844200C sensor into the safety system allowed for precise tuning of the airbag deployment algorithm. During crash testing, the sensor provided accurate and consistent data, enabling the system to deploy the airbags at the optimal moment for various crash scenarios (e.g., offset frontal, rigid barrier). This contributed significantly to the vehicle achieving its top safety rating and enhancing brand reputation for safety.

Related Product Combination Solutions:

· •Autoliv ACU (Airbag Control Unit): The central brain of the safety system, which receives and processes the crash signal from the 627844200C sensor.

· •Autoliv Side Impact Sensors: Sensors designed for side collision detection, which work in conjunction with the frontal 627844200C for comprehensive protection.

· •Autoliv Seat Occupancy Sensors: Sensors that detect passenger presence and weight, providing data to the ACU to enable or disable specific airbags, working with the crash detection provided by the 627844200C.

· •Autoliv Safety ECU: The broader electronic control unit that may integrate both ACU and other vehicle safety functions.

· •Autoliv Wiring Harnesses and Connectors: Specifically designed connection systems that ensure reliable signal transmission from the sensor to the ACU.

Installation, Maintenance, and Full-Cycle Support:

Installation of the Autoliv 627844200C is a precise process following the vehicle manufacturer's specifications, including torque settings for mounting bolts and specific orientation. Electrical connection is made via a dedicated, secure connector. It is critical that installation is performed by trained technicians to ensure proper function.Routine maintenance is generally not required, as the sensor is designed for the life of the vehicle. However, it must be replaced after a deployment-level crash. Diagnostics are typically performed by the vehicle's onboard diagnostics system, which can check the sensor's circuit and basic functionality. Our support encompasses the entire lifecycle, from initial system integration consulting to technical support for diagnostics and a guaranteed supply of genuine Autoliv 627844200C sensors for the aftermarket and repair sector.