Method and system for forecasting and warning on automotive abnormalities

An automotive abnormality forecasting and warning system comprising:

• sensor means for detecting the condition of an automobile inspection item and generating a detection signal;
• control means including first means for generating a first alarm command signal when said detection signal exceeds a predetermined value, means for calculating the change rate of said detection signal, and abnormality forecasting means for generating a second alarm command signal when forecasting an abnormality by the use of said detection signal and said calculated change rate;
• alarm display means for displaying an alarm in response to said first alarm command signal;
• and
• voice alarm generator means for issuing a voice alarm in response to said second alarm command signal.

An automotive abnormality forecasting and warning system comprising:

• a water temperature sensor for detecting the temperature of the cooling water and generating a water temperature indication signal;
• water temperature judging means including means for fetching the water temperature indication signal periodically, means for detecting that the water temperature indication signal has exceeded a predetermined value and generating a water temperature alarm signal, and means for calculating the change of water temperature in variable calculation cycles, said calculator means including means for calculating the rate of water temperature change in given one of variable cycles in accordance with the difference in the detected water temperature between the beginning and the end of said cycle, first memory means for storing a relation between water temperature, water temperature-change rate and calculation cycle in such a manner that the higher the water-temperature and the water-temperature-change-rate, the smaller the calculation cycle, second memory means for storing a relation between water-temperature and water-temperature-change-rate in a predetermined water-overheat region, means for determining a calculation cycle corresponding to the calculated water temperature change rate and the detected water temperature indication signal on the basis of the signal from said first memory means, overheating trend detecting means for comparing the detected water temperature and the calculated change rate with those in said predetermined water overheat region and issuing an overheating trend alarm signal when said detected water temperature and said calculated change rate are included in said region, said overheating trend detecting means issuing a cancellation signal when said detected water temperature and said calculated change rate are not included in said region, visual alarm means for issuing an alarm on an overheating trend in accordance with less than a predetermined number of overheat trend alarm signals generated, and voice alarm means for issuing a voice alarm on an overheating trend in response to the generation of the overheating trend alarm signals in a number not less than the predetermined number;
• first display means for displaying an alarm in response to said water temperature alarm signal;
• and
• second display means for displaying an alarm in response to said overheating trend alarm signal.