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Title:
SPEED CHANGE CONTROLLER OF HYBRID TRANSMISSION
Document Type and Number:
Japanese Patent JP2004270785
Kind Code:
A
Abstract:

To eliminate blank space belonging to none of scheduled operation mode regions in response to car speed, required driving force, and a battery accumulation state, and to avoid reduction of power performance at a starting time and at travelling time to a highway.

An EV mode region, an EV-LB mode region, an EIVT mode region, and an EIVT-LB mode region are determined in a favorite region according to the car speed VSP, the required driving force F, and the battery accumulation state SOC. When the four regions are shown in a lump on the two-dimensional coordinate of the car speed VSP and the required driving force F, a blank region (an extended EIVT-LB mode region) belonging to none of the operation modes occurs between the EV-LB mode region and the EIVT-LB mode region, and in a place of VSP<VSP2 and F≥F1. The EIVT-LB mode region is extended in the blank region to set the extended EIVT-LB mode region, and the blank region is eliminated to eliminate reduction of acceleration performance. An engine clutch is slip-connected to match with the low car speed in the extended EIVT-LB mode region, and the EIVT-LB mode is warranted in the extended EIVT-LB mode region.


Inventors:
MENSLER MICHEL
DEGUCHI YOSHITAKA
Application Number:
JP2003061558A
Publication Date:
September 30, 2004
Filing Date:
March 07, 2003
Export Citation:
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Assignee:
NISSAN MOTOR
International Classes:
B60K6/365; B60K6/445; B60K6/48; B60K17/04; B60W10/02; B60W20/00; F16D48/02; F16H3/72; (IPC1-7): F16D48/02; B60K6/04; B60K17/04; F16H3/72
Attorney, Agent or Firm:
Kosaku Sugimura