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Title:
MOTOR ASSISTANCE CONTROLLER FOR HYBRID CAR
Document Type and Number:
Japanese Patent JP2000069609
Kind Code:
A
Abstract:

To make the efficiency of engine assistance higher without spoiling the sensation of acceleration by decreasing the quantity of decided assistance according to the operating condition of a car, by a ratio corresponding to the difference between a detected value of the charged quantity of a capacitor and a threshold set beforehand.

The relation between a capacitor voltage VCAP and each of threshold VCAPLMTL, set beforehand as a lower limit value for compensating the operation of an electrical equipment system and the upper limit value VCAPLMLH of assistance is determined (S32, S33). If VCAP≤VCAPLMLH, a correction factor α is found (S35) by dividing the difference DVCAPLML between VCAP and VCAPLMTL by (VCAPLMTL-VCAPLMLH). An assistance determining flag F.AST is set to 1 (S36, S37), after multiplying the quantity of assistance determined previously by α, and correcting the quantity of assistance in accordance with VCAP If VCAP>VCAPLMLH, F.AST is set to 1, and the motor is driven with ASTPWR. If VCAP≤VCAPLMTL, F.AST is set to zero after setting ASTPWR to 0, and assistance by motor driving is not performed.


Inventors:
KURODA YOSHITAKA
NAKANO KENJI
MATSUBARA ATSUSHI
IZUMIURA ATSUSHI
UCHIDA KEISUKE
KONNO FUMIHIKO
Application Number:
JP1998000276362
Publication Date:
March 03, 2000
Filing Date:
August 23, 1998
Export Citation:
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Assignee:
HONDA MOTOR CO LTD
International Classes:
F02D45/00; B60K6/20; B60K6/28; B60K6/485; B60K6/54; B60L50/16; B60W10/08; B60W10/26; B60W20/00; F02D29/02; F02D29/06; H02J7/00; H02P9/04; (IPC1-7): B60L11/14; F02D29/02; F02D29/06; F02D45/00; H02J7/00; H02P9/04
Attorney, Agent or Firm:
Kiyoshi Torii