Title:
DEVICE FOR CONTROLLING TORQUE DISTRIBUTION TO LEFT AND RIGHT WHEELS ON A VEHICLE
Document Type and Number:
WIPO Patent Application WO/2012/005265
Kind Code:
A1
Abstract:
During an initial turn period in which a lateral acceleration (Gy) is less than an initial-turn-period determination value (Gys), the disclosed device sets a rear-wheel torque-difference determination gain (Gain), which is multiplied by a fundamental left/right rear-wheel torque-difference steady-state control calculation value for vehicle turning behavior requested continually by the driver, to A, which is greater than 1 and increases as the lateral acceleration (Gy) decreases. As a result, a final rear-wheel torque difference (ΔTcLR) is increased during the initial turn period (lateral acceleration (Gy) < Gys), said final rear-wheel torque difference being obtained by multiplying a feedback control coefficient by a left/right rear-wheel torque difference, which is the sum of a left/right rear-wheel torque-difference transient control term and a final left/right rear-wheel torque-difference steady-state control term obtained by multiplying the fundamental left/right rear-wheel torque-difference steady-state control calculation value by the rear-wheel torque-difference determination gain (Gain = A). This improves an initial turn response.
Inventors:
TSUSHIMA Yohei (2Takara-cho, Kanagawa-kuYokohama-sh, Kanagawa 23, 〒2210023, JP)
Application Number:
JP2011/065399
Publication Date:
January 12, 2012
Filing Date:
July 05, 2011
Export Citation:
Assignee:
NISSAN MOTOR CO.,LTD. (2Takara-cho, Kanagawa-kuYokohama-sh, Kanagawa 23, 〒2210023, JP)
日産自動車株式会社 (〒23 神奈川県横浜市神奈川区宝町２番地 Kanagawa, 〒2210023, JP)
日産自動車株式会社 (〒23 神奈川県横浜市神奈川区宝町２番地 Kanagawa, 〒2210023, JP)
International Classes:
B60K17/344
Attorney, Agent or Firm:
AYATA Masamichi (203 Royal-Chateau-Kawasaki, 22-2 Omiya-cho Saiwai-ku, Kawasaki-sh, Kanagawa 14, 〒2120014, JP)
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Claims: