OUTLINE
A grille shutter system is used*. This system blocks the flow of air into the engine compartment from the lower radiator grille.
Tech Tips
*: Models for Europe
The grille shutter suitably controls cooling airflow for the engine and inverter by opening and closing the shutter, thus reducing drag.
The grille shutter system is composed of a swing grille actuator assembly, radiator shutter sub-assembly, air conditioning amplifier assembly, hybrid vehicle control ECU and ECM.
The grille shutter system is controlled by the swing grille actuator assembly. The swing grille actuator assembly is integrated into the radiator shutter sub-assembly.
MAIN FEATURES
The adoption of the grille shutter system has the following advantages.
Reduces the air resistance in the engine compartment when the vehicle is traveling at high speeds.
Facilitates warm-up of the engine by blocking the flow of cold air into the engine compartment when the engine coolant temperature and inverter coolant temperature are low. This supports fuel economy.
| *1 | Radiator Shutter Sub-assembly | *2 | Radiator Lower Air Guide Plate |
| *3 | Swing Grille Actuator Assembly | *4 | Front Bumper Reinforcement |
| *5 | Front Bumper Reinforcement Sub-assembly No. 2 | *6 | Grille Shutter Fin No. 1 |
| *7 | Grille Shutter Fin No. 2 | - | - |
| *a | A - A Cross Section | *b | Open |
| *c | Closed | - | - |