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Smart Actuators - HAL

Smart actuators are a relatively new innovation in the automotive industry. They combine actuators with local drive electronics and internal or external sensors to make dynamic adjustments to automobile systems, reducing weight and drag and increasing efficiency. Smart actuators are capable of performing diagnostics and include learning capabilities and memory functions.

About Smart Actuators

HAL is a heat, ventilation and air conditioning (HVAC) Lin Stepper Actuator.

Every car has a radiator and a grille. Air streams through the grille and into the engine compartment, causing turbulence. The grille shutter consists of vanes that can close the air stream down and block the air from entering the engine compartment. This reduces turbulence, which decreases drag and increases fuel economy. The vehicle’s electronic control unit (ECU) decides whether the grille shutter needs to be open or closed based on the engine and outside temperature, driving conditions and other factors. The actuators open and close the grille shutter as needed, allowing the car to operate efficiently without the risk of overheating. The integrated electronics drive and control the BLDC motor and communicate with the vehicle’s ECU via LIN interface to receive commands and provide feedback about its status and events such as actuator position, temperature, over-current or over-voltage report and many others. Additionally, it stores crucial events aiding continuous quality control.  

Advantages of LIN Bus System Model:


Low Noise

Lighter Weight

Reduced Load on ECU


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