Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Knocking control apparatus of internal combustion engine










Image Number 19 for United States Patent #5062402.

An engine which determines the occurrence of knocking using the maximum frequency point, which expresses the maximum strength of vibration which occurs with the highest frequency in the engine. The maximum frequency point is updated in accordance with the engine operating conditions. That is, a first region of a fixed width is set at the larger side of the strength of vibration of the maximum frequency point and the maximum frequency point is increased by a fixed value when the maximum strength of vibration occurring in the engine is in that first region. On the other hand, a second region of a fixed width is set at the smaller side of the strength of vibration of the maximum frequency point and the maximum frequency point is decreased by a fixed value when the maximum strength of vibration occurring in the engine is in that second region.








 
 
  Recently Added Patents
Look up table (LUT) structure supporting exclusive OR (XOR) circuitry configured to allow for generation of a result using quaternary adders
Method of and apparatus for evaluating an optimal irradiation amount of an electron beam for drawing a pattern onto a sample
Gyroscope utilizing torsional springs and optical sensing
Etching apparatus and methods
Method of interfacing a host operating through a logical address space with a direct file storage medium
Servo write assembly
SONOS stack with split nitride memory layer
  Randomly Featured Patents
Container for electromagnetic cookers
Frame, especially a quick-change frame for photographs
Regeneration controller for exhaust purification apparatus of internal combustion engine
Cleaning device
Localized radio frequency communication using asynchronous transfer mode protocol
Toy beverage cart
Metadevice driver rename/exchange technique for a computer system incorporating a plurality of independent device drivers
Roof cap
Tachograph having a shallow, installable housing
Method of fabricating semiconductor device