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
Location-type tagging using collected traveler data
Image forming apparatus capable of timely starting different image formation mode
Device for producing a connection grid with an integrated fuse
Drug delivery system
Variety corn line KDC7040
Faucet
Cooking tray
  Randomly Featured Patents
FK module and method for the production thereof
Apple tree `Tensei`
Environmental control system for use with a battery cabinet and method of operating a fan therein
Modulation output device
Character image layout method and device
Unit-cell array optical signal processor
Differential pressure control for gas seal in turbo machinery
Resin for powder molding and process for producing the same
Image watermarking based on sequency and wavelet transforms
Linear lenses for LEDs