Title:
HYDRAULIC CONTROL DEVICE AND DRIVING FORCE DISTRIBUTION DEVICE FOR FOUR-WHEEL DRIVE VEHICLE PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2014/125926
Kind Code:
A1
Abstract:
Provided is a hydraulic control device that has a simple configuration, is easy to control, and enables the temperature of hydraulic fluid supplied to a hydraulic actuator to be determined with high accuracy. The device includes a hydraulic fluid temperature estimation means (50), which estimates the temperature of the hydraulic fluid supplied to a hydraulic clutch (actuator) (10). The hydraulic fluid temperature estimation means (50): calculates a logistic regression output from an integrated value of the drive current of an electric motor (37) and an average value of the drive voltage; calculates the posterior probability from the output when the calculated logistic regression output is equal to or greater than a first threshold (L); and determines the temperature of the hydraulic fluid to be a prescribed temperature by estimating the posterior probability to be a determined result when the calculated posterior probability is equal to or greater than a second threshold (H), which is larger than the first threshold (L).
Inventors:
YOSHINO HIROKI (JP)
Application Number:
PCT/JP2014/052012
Publication Date:
August 21, 2014
Filing Date:
January 29, 2014
Export Citation:
Assignee:
HONDA MOTOR CO LTD (JP)
International Classes:
F16D48/02; B60K17/348
Foreign References:
| JPS61157439A | 1986-07-17 | |||
| JPH0893794A | 1996-04-09 | |||
| JP2012224290A | 2012-11-15 |
Attorney, Agent or Firm:
KAIZUKA, Ryohei et al. (Third Floor 1-7, Hongo 4-chome, Bunkyo-k, Tokyo 33, JP)
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