Title:
SPEED-CHANGE CONTROL METHOD FOR ELECTRIC VEHICLE, AND SPEED-CHANGE CONTROL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2013/183482
Kind Code:
A1
Abstract:
This speed-change control method for electric vehicle includes a clutch cancellation step (S2), a synchronization step (S3), and clutch engaging steps (S4, S5). The synchronization step (S3), performed after the clutch cancellation step (S2), includes a first cancellation determination step of determining, after the elapse of a certain time following the start of an electric motor synchronization operation, whether the engagement of a roller clutch for a current speed-change stage is cancelled, and a second cancellation determination step of determining, if it is determined by the first cancellation determination step that the engagement of the roller clutch for at least the current speed-change stage is not cancelled, whether the engagement of the roller clutch for the current speed-change stage is cancelled after the elapse of a further certain time.
Inventors:
LI GUODONG (JP)
ISOBE FUMIHIRO (JP)
ITAKURA YOSHINORI (JP)
ISOBE FUMIHIRO (JP)
ITAKURA YOSHINORI (JP)
Application Number:
PCT/JP2013/064687
Publication Date:
December 12, 2013
Filing Date:
May 28, 2013
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
B60W10/02; B60K6/442; B60L50/16; B60W10/08; B60W10/10; B60W20/00; F16D41/06; F16H61/04
Foreign References:
| JP2011057030A | 2011-03-24 | |||
| JP2011058534A | 2011-03-24 | |||
| JP2005121219A | 2005-05-12 |
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
Shuji Sugimoto (JP)
Shuji Sugimoto (JP)
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