Title:
MODE CHANGEOVER CONTROL DEVICE OF HYBRID TRANSMISSION
Document Type and Number:
Japanese Patent JP3900138
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To avoid increasing in size of a hybrid transmission by preventing the request of large torque to one motor/generator at the time of mode changeover from low to high.
SOLUTION: When mode changeover is performed from low mode to high mode at a synchronous point where both the motor/generator passing powers in the low mode and in the high mode are 0, the torque sharing of the motor/generator MG2 is larger than that of the motor/generator MG1, and the inner peripheral motor/generator MG2 is increased in size, thereby causing the increase in size of the hybrid transmission, together with excessive torque capacity of the motor/generator MG1. However, by performing mode changeover at a speed ratio "i" on the high side from the synchronous point, the required torque Tmg2 of the motor/generator MG2 is reduced by ΔTmg2, thereby enabling the reduction in size of the motor/generator MG2, and, therefore, the reduction in size of the hybrid transmission.
Inventors:
Yatabe Kazuo
Shunichi Shinobi
Shunichi Shinobi
Application Number:
JP2003375620A
Publication Date:
April 04, 2007
Filing Date:
November 05, 2003
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
B60K6/365; B60K6/387; B60K6/445; B60K17/04; B60L50/16; B60W10/10; B60W20/00; F16H3/66; F16H3/72; F16H61/04; F16H61/66; (IPC1-7): F16H61/04; B60K6/04; B60K17/04; B60L11/14; F16H3/66; F16H3/72
Domestic Patent References:
| JP2000062483A | ||||
| JP2003278855A | ||||
| JP2003034153A | ||||
| JP2001112113A | ||||
| JP2004150627A |
Foreign References:
| US6551208 | ||||
| US6491599 | ||||
| US20020045507 | ||||
| EP1097830A1 | ||||
| WO2003043846A1 |
Attorney, Agent or Firm:
Kosaku Sugimura
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