Title:
POWER STEERING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2018/163724
Kind Code:
A1
Abstract:
A control device (15) comprises a steering angle returning torque target value setting unit (30) which calculates a returning control amount target value (MapOut) on the basis of a vehicle speed (Vs) and a turning angle (θb) and a steering angle returning torque command signal calculation unit (31) which calculates a returing control amount (RetOut) on the basis of the returning control amount target value (MapOut). The steering angle returning torque command signal calculation unit (31) is provided with a rate limiter (36). The rate limiter (36) determines the change in vehicle speed (Vs) from a vehicle speed sensor (19), and gradually increases or decreases the returning control amount target value (MapOut) at a certain rate to output the returning control amount (RetOut).
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Inventors:
MIYAJIMA TSUKASA (JP)
Application Number:
PCT/JP2018/004979
Publication Date:
September 13, 2018
Filing Date:
February 14, 2018
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
B62D6/00; B62D5/04; B62D101/00; B62D113/00; B62D117/00; B62D119/00
Domestic Patent References:
| WO2015170559A1 | 2015-11-12 | |||
| WO2015119149A1 | 2015-08-13 |
Foreign References:
| JPS62241768A | 1987-10-22 |
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
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