Title:
DRIVE CONTROL DEVICE FOR STANDBY FOUR-WHEEL DRIVE VEHICLE
Document Type and Number:
WIPO Patent Application WO/2011/048660
Kind Code:
A1
Abstract:
Provided is a drive control device for a standby four-wheel drive vehicle which achieves a reduction in the amount of electric power consumed to operate a clutch unit and an increase in the regenerative efficiency of an electric motor, thereby leading to improved fuel economy. When braking command torque (To) calculated by a braking command torque calculation means (124) is less than or equal to rear-wheel regeneration limit torque (TL1) during regenerative braking by an electric motor (M), the amount of electric power consumed to operate a control coupling unit (54) reduces and the regenerative efficiency of the electric motor (M) increases, because a transmission torque control means (126) for causing only rear drive wheels (32) to execute regenerative braking with the transmission torque between a drive source for the vehicle and front drive wheels (30) being set to zero by the control coupling unit (54) is included. Thus, fuel economy is improved.
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Inventors:
YOSHIMURA Takahiro (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
Application Number:
JP2009/068037
Publication Date:
April 28, 2011
Filing Date:
October 19, 2009
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyota-cho, Toyota-shi Aichi, 71, 〒4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 〒4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 〒4718571, JP)
International Classes:
B60L7/24; B60K6/445; B60K6/52; B60L11/14; B60W20/00; B60W30/18
Attorney, Agent or Firm:
IKEDA Haruyuki (Ikeda Patent Office, Nagoya-Dia. Bldg. No.2 15-1, Meieki 3-chome, Nakamura-ku, Nagoya-sh, Aichi 02, 〒4500002, JP)
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