Title:
ATCU SUPPRESSED WITH HEAT GENERATION
Document Type and Number:
Japanese Patent JP2018185013
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce both of heat generation suppression of ATCU, and noise suppression by controlling frequency characteristic of a solenoid.SOLUTION: In a hydraulic control circuit that controls gear change of a continuously variable transmission (CVT), ATCU drives a linear solenoid by output current control in the hydraulic control circuit and conducts gear change with CVT hydraulic control. The ATCU is installed with a noise suppression circuit while deteriorating the frequency characteristic of MOSFET that control a current of the linear solenoid.SELECTED DRAWING: Figure 1
Inventors:
TAKAHASHI KAZUHIDE
Application Number:
JP2017087823A
Publication Date:
November 22, 2018
Filing Date:
April 27, 2017
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD
International Classes:
F16H61/00; F16H61/66; H01L21/822; H01L27/04
Domestic Patent References:
| JPH04248066A | 1992-09-03 | |||
| JP2015095946A | 2015-05-18 | |||
| JP2008259031A | 2008-10-23 | |||
| JPH10135336A | 1998-05-22 | |||
| JP2003518748A | 2003-06-10 | |||
| JP2002299544A | 2002-10-11 |
Attorney, Agent or Firm:
Yuji Toda