MODE SWITCHING CONTROL DEVICE OF HYBRID VEHICLE

Title:

MODE SWITCHING CONTROL DEVICE OF HYBRID VEHICLE

Document Type and Number:

WIPO Patent Application WO/2014/087856

Kind Code:

A1

Abstract:

When an engine is started and a transmission clutch is engaged in response to an EV→HEV mode switch request (t1), the transmission clutch is engaged at t3 to t4 during engine startup before an engine auto-drive start time (t6). During clutch engagement (t3 to t4), the engine is in startup (t2 to t6) prior to auto-drive, a large engine torque is not inputted to the transmission clutch as is clear from the engine torque (Te) waveform at t3 to t4, and during EV travel, there is no large torque difference with the transmission clutch output torque, which is a value of less motor torque from an electric motor. The input/output rotation difference (∆N) in the transmission clutch is made smaller at t3 by cranking during engine startup at t2 to t6, and if the transmission clutch is engaged at t3, the transmission clutch engagement can be performed under reduced shock on the basis of the smaller input/output torque difference and input/output rotation difference.

Inventors:

KOIKE TOMOYUKI (JP)
KUBO KENGO (JP)
KATO YOSHIAKI (JP)

Application Number:

PCT/JP2013/081583

Publication Date:

June 12, 2014

Filing Date:

November 25, 2013

Export Citation:

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Assignee:

NISSAN MOTOR (JP)
JATCO LTD (JP)

International Classes:

B60W10/02; B60K6/442; B60K6/543; B60L50/16; B60W10/08; B60W20/00; F02D29/00; F02D29/02

Foreign References:

JP2000225859A	2000-08-15
JP2007001425A	2007-01-11
JP2001193612A	2001-07-17
JP2003286930A	2003-10-10
JP2000199442A	2000-07-18
JP2000289471A	2000-10-17

Other References: