Title:
DRIVING DEVICE
Document Type and Number:
Japanese Patent JP2018102056
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress delay of response when a step-up converter is moved from a non-step-up state to a step-up state.SOLUTION: When a voltage command VH* of a high voltage system power line exceeds an upper arm on cancel voltage Vref lower than a battery voltage system voltage VL during controlling of a step-up converter in a case where a target duty ratio Duty as a target value of an on-duty of the upper arm is 100%, the target duty ratio Duty is reduced from 100%. Thus, a dead band of the duty ratio can be passed just before the voltage command VH* exceeds the battery voltage system voltage VL. Therefore, when the voltage command VH* exceeds the battery voltage system voltage VL, pressure rise can be immediately started by further reducing the target duty ratio Duty.SELECTED DRAWING: Figure 4
Inventors:
TSUJII SHINTARO
Application Number:
JP2016246685A
Publication Date:
June 28, 2018
Filing Date:
December 20, 2016
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
H02P27/08; H02M3/155; H02M7/48
Domestic Patent References:
| JP2010041752A | 2010-02-18 | |||
| JP2014128098A | 2014-07-07 | |||
| JP2009225634A | 2009-10-01 |
Foreign References:
| US20110006723A1 | 2011-01-13 |
Attorney, Agent or Firm:
Aitec International Patent Office