Inventors:
Sudha Senthil - West Bloomfield MI, US
Kevin Marrocco - Canton MI, US
Assignee:
DENSO CORPORATION - Kariya-shi
DENSO INTERNATIONAL AMERICA, INC. - Southfield MI
International Classification:
B60H 1/24
Abstract:
An air conditioning apparatus having an electrical controlling unit that is configured to receive a wiper motor signal, and accumulates a wiper signal value based on the wiper motor signal. When the accumulated wiper signal value exceeds a threshold value, the electrical controlling unit stops introducing recirculation airflow in an auto selection mode, until predetermined conditions are satisfied. The air conditioning apparatus may detect rain by the wiper motor signal.