Nippondenso Co., Ltd.

Hitoshi Hibi

Masanori Naganoma

Nobuo Kondo

Kunihiko Suzuki

Tetsuo Fujii

Katsunori Ito

Eiichi Senda

Nobuyoshi Ohta

An automotive abnormality forecasting and warning method and system for issuing a voice and visual alarm when a signal representing the condition of an automotive inspection item exceeds a predetermined value, which comprise steps of calculating the cooling water temperature change rate in variable cycles, determining a calculation cycle corresponding to the detected water temperature and the calculated change rate from a memory storing the cooling water temperature, water-temperature-change rate and calculation cycle in a predetermined relation, judging whether the detected water temperature and the calculated change rate are in a predetermined water overheat region, and issuing a voice alarm on an overheating trend in response to more than a predetermined number of the judging operations.

Method and system for forecasting and warning on automotive abnormalities

A vehicle air conditioner control method and apparatus for automatically controlling the air conditioning of the compartment of a vehicle in accordance with a predetermined automatic control pattern, uses a selector for selecting a desired air conditioning condition. In response to the command signal from the selector, changeover from the control parameters, such as, air flow rate and supply air temperature for an automatic control mode to the selected control parameters for a selected air conditioning mode is effected, thus making it possible to selectively control the air conditioning of the vehicle compartment in accordance with a predetermined automatic control mode and a selected air conditioning mode.

Air conditioner control method and apparatus

Growing community of inventors

Kariya, Japan

Hitoshi Hibi