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Patent Searching and Data


Title:
SLIP CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/054382
Kind Code:
A1
Abstract:
Provided is a slip control device with which it is possible to exercise stable slip control even when the accuracy of measuring a wheel rotation speed deteriorates during low speed time and prevent vehicle behavior from being disturbed. The present invention is applied to a slip control device 11 for calculating deviation (Δω) between a wheel rotation speed (ω) and a permissible rotation speed (ω') or deviation (Δλ) of a slip ratio (λ), and exercising feedback control by the deviation (Δω) using each of variable gains (PKI, KP, KD) for performing integral compensation and proportional compensation or differential compensation or both. A feedback gain change unit (14, 14A) is included which, when a vehicle speed (V) is less than or equal to a threshold (Vth), reduces one or both of a proportional gain (KP) and a differential gain (KD) and maintains as is or reduces an integral gain (KI) among the gains used for the feedback control.

Inventors:
KOSAKA SHUICHI (JP)
HIRATA JUNICHI (JP)
Application Number:
PCT/JP2018/033678
Publication Date:
March 21, 2019
Filing Date:
September 11, 2018
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
B60L15/20; B60T8/175; B60T8/1761
Domestic Patent References:
WO2017073184A12017-05-04
Foreign References:
JP2017093003A2017-05-25
JP2017022870A2017-01-26
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
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