Hydraulische Steuervorrichtung für ein Fahrzeug

Details

Veröffentlichungs-Nr.

EP2447561

Aktenzeichen

EP11187249

Anmeldetag

31. Oktober 2011

Veröffentlichung

1. Mai 2019

Erteilung

1. Mai 2019

Rechtsraum

EP

IPC

F16D25/00B60W20/00B60W10/02B60W10/115B60W30/18B60W30/186B60W20/40B60W20/11

Abstract

The hydraulic control apparatus calculates a target engagement hydraulic pressure of a frictional engagement element, controls the frictional engagement element so that a revolution speed at a driving source side of the frictional engagement element is higher than a revolution speed at a driving wheel side of the frictional engagement element, outputs a command current to a solenoid valve on the basis of a map having a relationship between the target engagement hydraulic pressure and the command current, and decreases the engagement hydraulic pressure when a vehicle speed is equal to or less than a predetermined vehicle speed at which the vehicle is judged to be vehicle stop during execution of the slip control. Further, the hydraulic control apparatus corrects the map so that a variation of the command current with respect to a variation of the target engagement hydraulic pressure is small when decreasing the engagement hydraulic pressure.

Anmelder

Firmen

JATCO Ltd
Nissan Motor Co., Ltd.
Jatco Ltd

Land

🇯🇵 Japan

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