Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Failure diagnosis apparatus for temperature sensor










Image Number 11 for United States Patent #6980904.

A failure diagnosis apparatus for a temperature sensor which detects a temperature that changes depending on an operating condition of an internal combustion engine. Determining that the temperature sensor fails, if the execution condition of the failure determination is satisfied and a temperature difference between the maximum temperature and the minimum temperature detected by the temperature sensor in the determination period, is less than a failure determination threshold value, when the starting of the engine in the preceding engine operation cycle was a cold start. Alternatively, determining that the temperature sensor fails, if the execution condition is satisfied, the temperature difference between the maximum temperature and the minimum temperature is less than the failure determination threshold value, and an engine stop period in the preceding engine operation cycle is longer than a failure determination permission time period, when the starting of the engine in the preceding engine operation cycle was not a cold start.








 
 
  Recently Added Patents
Conductor for transmitting electrical power
Ascertaining presentation format based on device primary control determination
Methods of saccharification of polysaccharides in plants
Nucleic acid sequences encoding secE/sec61-gamma subunits of protein translocation complexes
Processing financial documents
Dual gate electronic memory cell and device with dual gate electronic memory cells
Method and apparatus for storing email messages
  Randomly Featured Patents
Medical devices employing novel polymers
Electronic musical instrument having one-touch multitrack record and playback of automatic performance
Method and system to adjust for image errors induced by a lens array
Signal separation device and signal separation method
Heat exchanger having attachment structure of elastic support member
System and method for tire pressure monitoring with automatic tire location recognition
Arrangement for creating and using a phonetic-alphabet representation of a name of a party to a call
Printing apparatus
Tissue-engineered ligament
Apparatus for dimming discharge lamp having electromagnetic regulator with selectively tapped capacitance winding