Title:
SIGNAL PROCESSOR OF ROTATION SENSOR
Document Type and Number:
Japanese Patent JP2015045354
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To avoid the wire breakage and a belt slide of an input rotation sensor of a belt-type continuously variable transmission which is connected to a power plant via a clutch.SOLUTION: An instantaneous rotation speed Nm of an input shaft is calculated from an input cycle of a pulse signal from a rotation sensor, a rotation speed Nf is calculated by filter-processing the instantaneous rotation speed Nm, it is determined that a belt slip occurs when a state that the rotation speed Nf is not lower than a slip determination speed Nfor a slip determination time Tor longer when a vehicle is stopped, and the proximate rotation speed Nf is maintained until a time of the non-input of a pulse signal exceeds a wheel lock corresponding time Twhich is longer than the slip determination time T. When the instantaneous rotation speed Nm is in a zone between a first reference speed Nand a second reference speed Nwithin a reference time Tafter the signal non-input is brought into an input state, the instantaneous rotation speed is instantaneously set to zero by the generation of the non-input of the pulse signal, and when the instantaneous rotation speed Nm is in a zone of the second reference speed Nor longer, a value of the proximate rotation speed Nf is maintained.
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Inventors:
HATAJIMA KOICHI
Application Number:
JP2013175827A
Publication Date:
March 12, 2015
Filing Date:
August 27, 2013
Export Citation:
Assignee:
JATCO LTD
NISSAN MOTOR
NISSAN MOTOR
International Classes:
F16H59/42; F16H61/12; F16H61/662
Domestic Patent References:
| JP2013148110A | 2013-08-01 | |||
| JPS6362954A | 1988-03-19 | |||
| JP2005344860A | 2005-12-15 | |||
| JP2003106442A | 2003-04-09 | |||
| JP2013151175A | 2013-08-08 | |||
| JP2013148110A | 2013-08-01 | |||
| JPS6362954A | 1988-03-19 | |||
| JP2005344860A | 2005-12-15 | |||
| JP2003106442A | 2003-04-09 | |||
| JP2013151175A | 2013-08-08 |
Attorney, Agent or Firm:
Sanada 有