Title:
CONTROL DEVICE FOR LEFT AND RIGHT WHEEL DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/047703
Kind Code:
A1
Abstract:
Provided is a control device for a left and right wheel drive device that can precisely control torque generated at a drive source, with consideration given to the influence of bearing torque. A control device (67) is provided with a rotation speed calculating means (68), a bearing torque estimating means (69), a torque differential calculating means (70), and a drive source torque calculating means (71). The rotation speed calculating means (68) calculates the rotation speeds of first and second coupling members. The bearing torque estimating means (69) estimates the bearing torque from the two calculated rotation speeds. The torque differential calculating means (70) calculates a torque differential between torques generated at a drive source on the basis of the estimated bearing torque, torque differential amplification factor (α), and a difference between driving wheel torque command values respectively generated at left and right driving wheels. The drive source torque calculating means (71) calculates drive source torque command values respectively corresponding to the torques generated at left and right drive sources by using the calculated torque differential and the driving wheel torque command values generated at the respective left and right driving wheels. The drive source torque calculating means outputs the drive source torque command values to an inverter device (64).
Inventors:
HIRATA JUNICHI (JP)
Application Number:
PCT/JP2017/031309
Publication Date:
March 15, 2018
Filing Date:
August 31, 2017
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
B60K23/04; B60K1/02; B60L9/18; B60L15/20; F16H48/10; F16H48/20; F16H48/36
Domestic Patent References:
| WO2016114282A1 | 2016-07-21 |
Foreign References:
| JP2008295173A | 2008-12-04 | |||
| JP2015508353A | 2015-03-19 | |||
| JP2013212726A | 2013-10-17 |
Other References:
See also references of EP 3511189A4
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
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