Title:
STEERING CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/190086
Kind Code:
A1
Abstract:
A servo controller (40) calculates a base assist amount (Tb*) such that a steering torque (Ts) is caused to follow a target steering torque (Ts*). A convergence control calculation unit (51) used as a "correction control calculation unit" calculates a correction control amount (Tcmp) in accordance with a steering speed (ω), which is a steering state amount. A torque calculator (64) outputs to a servo limit value calculation unit (551) a torque limit value (±Tlim) obtained by converting a current limit value (Ilim) into torque. The servo limit value calculation unit (551) calculates a servo limit value (±Tlim_sv), which is a limit value for the output of the servo controller (40), such that the absolute value (|Tlim_sv|) of the servo limit value is a value greater than the absolute value (|Tlim|) of the torque limit value in at least part of the region of the steering speed (ω) or the corrected control amount (Tcmp).
Inventors:
KATAOKA MOTOAKI (JP)
Application Number:
PCT/JP2018/010981
Publication Date:
October 18, 2018
Filing Date:
March 20, 2018
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
B62D6/00; B62D5/04; B62D101/00; B62D113/00; B62D117/00; B62D119/00
Domestic Patent References:
| WO2014087546A1 | 2014-06-12 |
Foreign References:
| JP2016203855A | 2016-12-08 | |||
| JP2013063749A | 2013-04-11 | |||
| JP2016124337A | 2016-07-11 | |||
| JP2003137120A | 2003-05-14 | |||
| JP2016190623A | 2016-11-10 |
Attorney, Agent or Firm:
HATTORI Masaki (JP)
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