TSMOST, a specialized automotive parts specialist with differentiated impact and competitiveness.
Electronics Division
Component Shape
AAF System
AAF Function Description
- The AAF (Active Air Flap) system is a mechanism that opens and closes between the radiator grille and the radiator.
- It closes for improved fuel efficiency during high-speed driving and opens to reduce the internal temperature when the engine compartment overheats.
- Flap Close
- Flap Open
Active Air Flap (Source: Hyundai Mobis)
AAF Applied Models
HKMC : Applied to more than 5 models starting with Sonata HEV and K5 HEV (2nd Generation)
Sonata HEV
K5 HEV
IONIQ HEV
NIRO HEV
K9 Gasoline
Currently applied and expanding to global mass-produced cars
BMW : Xdrive
TOYOTA : PRIUS
PORSCHE : MACAN
RENAULT : SCENIC
MASERATI
3rd Generation AAF Status
-
Weight g
135
-
Communication Method
LIN 2.2
-
Motor Type
STEP Motor
-
Maximum Torque
20kgf*cm
-
Main Gear Shaft
Bidirectional Through-type
-
Waterproof (Case, Cover)
Laser Welding
-
Main MCU
-
-
Angle Detection
External Separate Hall Effect Sensor
Fuel Efficient and
CO2 Emission
A smart actuator is installed with an openable flap inside the vehicle's bumper and grille to open/close the flap based on vehicle status and driving conditions.
System Effects
Improves fuel efficiency by 2.3% by controlling engine temperature and adjusting air resistance, and reduces CO2 emissions by 15% by shortening the engine warm-up time.
Key Specifications
- Motor : Applied STEP MOTOR
- Operating Temperature : -40℃~+85℃
- Maximum Torque : 20Kgf.cma, 45Kgf.cma(New)
- Communication Method : LIN 2.2A
