Title:
ELECTRIC CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2015021392
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce an error of a detail crank angle signal indicating a rotation angle position of a crank shaft which is more detail than a crank angle signal more than a conventional technology.SOLUTION: A signal interval calculation part 56 calculates a signal interval T(n) of a detail crank angle signal so that a first signal interval T(1) becomes the longest, and is gradually shortened thereafter when a predicted crank angle signal cycle T'(i+1) is shorter than the past crank angle signal cycle T(i), and the rotation of a crank shaft is considered to be accelerated. On the contrary, the signal interval calculation part calculates the signal interval T(n) of the detail crank angle signal so that the first signal interval T(1) becomes the shortest, and is gradually elongated thereafter when the predicted crank angle signal cycle T'(i+1) is longer than the past crank angle signal cycle T(i), and the rotation of the crank shaft is considered to be decelerated. The detail crank angle signal is outputted following the signal interval T(n) which is calculated as above.
Inventors:
KUSUMOTO TAKAHITO
Application Number:
JP2013147710A
Publication Date:
February 02, 2015
Filing Date:
July 16, 2013
Export Citation:
Assignee:
DENSO CORP
International Classes:
F02D45/00
Domestic Patent References:
| JP2013133799A | 2013-07-08 | |||
| JP2008092340A | 2008-04-17 |
Attorney, Agent or Firm:
Kazuyuki Yahagi
Yasuhei Nonobe
Takanori Kubo
Yasuhei Nonobe
Takanori Kubo