As the demand for automobile intelligence and riding comfort continues to increase, the automotive air conditioning damper system is increasingly used in passenger cars, becoming an important component to ensure the regulation of temperature, humidity, ventilation volume and wind direction in the cabin. As the core driving component of the system, the damper actuator effectively improves the stability of the in-car climate control system through precise control of each vent, ensuring a comfortable in-car experience under different climatic conditions.
Function and effect of damper actuator
The main function of the damper actuator is to adjust the position and angle of the vents in the vehicle according to the instructions of the vehicle’s electronic control unit (ECU), thereby changing the direction and temperature of the airflow. Through the precise control of the actuator, the damper system can achieve functions such as air mixing, cooling, heating and defrosting, providing passengers with a more personalized and zoned climate control experience. Modern vehicles are even equipped with multi-zone independent climate control systems, and the damper actuators in the front and rear cabins can work together to achieve more precise air conditioning.
Classification and control methods of damper actuators
According to different control methods and application scenarios, damper actuators are mainly divided into the following categories:
- Chip drive control: Accurately adjust the actuator position through integrated chips to achieve fast response and stable operation.
- Position feedback control: Use position sensors to provide real-time feedback on the actuator position to achieve precise positioning and adjustment.
- Contact control and mechanical limit control: Use physical contact or mechanical limits to control the movement of the damper, usually to ensure that the actuator does not deviate from the set range when operating.
The air mixing flap actuator is a typical control device that adjusts the cabin temperature by controlling the mixing ratio of hot and cold air. The actuator automatically adjusts the air flap angle according to the set temperature and the temperature difference between the inside and outside of the car to provide airflow with the appropriate temperature in the cabin.
Kinmore Automotive Throttle Actuator Solutions
In the process of developing and manufacturing motors, Kinmore customized and developed the RF-370 motor for the application scenarios of automotive air-conditioning damper actuators to meet the strict technical requirements of the damper system in terms of voltage, torque and noise control.
- With a rated speed of 4500 rpm, it meets the driving force requirements for actions such as damper switching and circulation mode adjustment.
- It possesses stable low-speed control capabilities, satisfying the precise drive needs of automotive damper actuators during angle adjustment, resulting in smoother damper opening and closing and improving the airflow control accuracy of the air conditioning system.
- The noise level of the motor during operation has a significant impact on the overall system comfort. Therefore, Kinmore Motor has applied optimized noise reduction design to the RF-370 model, ensuring a consistently low noise level throughout the motor’s lifespan, with noise interference controlled below 35 dB, greatly improving the vehicle’s quietness.
The automotive air-conditioning damper actuator is the core component for intelligent climate control. It provides a personalized and comfortable climate experience for passengers in the car by accurately adjusting the airflow direction and temperature. With the development of intelligent and integrated vehicles in the future, the high reliability and accuracy of the damper actuator will be further improved, providing a solid comfort guarantee for intelligent driving.
