ENGINE START CONTROL DEVICE FOR HYBRID VEHICLE

WIPO Patent Application WO/2013/108401

A1

In the present invention, a determination is made as to whether towing travel is under way, in which vehicle weight is increased, and when towing travel is under way, the compensating torque provided by a motor generator (MG) is decreased relative to the compensating torque provided during non-towing travel, and the torque of the motor generator (MG) is therefore reduced by a commensurate amount and fuel efficiency is enhanced. During towing travel in which the vehicle weight is large, a large drive force is usually necessary and the frequency of use of the motor generator (MG) increases; however, the compensating torque during engine start is reduced, and the load on the motor generator (MG) is thereby mitigated by a commensurate amount, and overheating and the like are suppressed. Since the inertia of the vehicle is relatively small during non-towing travel, i.e., normal travel, in which the vehicle weight is relatively small, variations in the drive force due to the engine starting torque are relatively increased, and shocks such as a sense of being pulled back become significant. However, because the compensating torque provided by the motor generator (MG) is increased correspondingly with the starting torque, shocks are adequately suppressed.

KOBAYASHI NOBUFUSA (JP)
SUGIMURA TOSHIO (JP)
YOSHIKAWA MASATO (JP)

PCT/JP2012/051246

July 25, 2013

January 20, 2012

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TOYOTA MOTOR CO LTD (JP)
KOBAYASHI NOBUFUSA (JP)
SUGIMURA TOSHIO (JP)
YOSHIKAWA MASATO (JP)

B60W10/08; B60K6/48; B60K6/54; B60L50/16; B60W20/00

JP2010120518A	2010-06-03
JP2004211575A	2004-07-29
JP2008531389A	2008-08-14

IKEDA HARUYUKI (JP)
Haruyuki Ikeda (JP)

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