CREEP CUT-OFF CONTROL DEVICE FOR ELECTRIC VEHICLE

Title:

CREEP CUT-OFF CONTROL DEVICE FOR ELECTRIC VEHICLE

Document Type and Number:

WIPO Patent Application WO/2012/002050

Kind Code:

A1

Abstract:

In a forward creep torque output condition, vehicle speed (VSP) enters a vehicle speed range in which creep cut-off is prohibited (t1) of less than V1, and if this condition continues only for a set time (t2) corresponding to a timer value (NTM1), creep cut-off is prohibited by a creep cut-off prohibition flag (NFLAG=1). Consequently, while the vehicle speed (VSP) is around 0, and a creep cut-off clearance condition related to the vehicle speed holds true, a braking force is at least equal to a creep cut-off clearance braking force, and the creep cut-off clearance condition related to the braking force holds true (t3). Even if a creep cut-off clearance flag (FLAG) is set to 1 at t4 in response to this, creep torque continues to be output from t4 onward without creep cut-off being carried out in response to this, enabling the occurrence of an unreasonable torque reduction due to the execution of creep cut-off at t4 to be prevented.

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Inventors:

NAKAMURA YOHEI
KAZAMA ISAMU

Application Number:

PCT/JP2011/061054

Publication Date:

January 05, 2012

Filing Date:

May 13, 2011

Export Citation:

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Assignee:

NISSAN MOTOR (JP)
NAKAMURA YOHEI
KAZAMA ISAMU

International Classes:

B60L9/18; B60W10/08; B60W20/00

Foreign References:

JP2010093990A	2010-04-22
JP2007236168A	2007-09-13
JP2000102113A	2000-04-07
JP2010093990A	2010-04-22

Other References: