Patent ID: 7100720
Filing Date: 2006-09-05
Classification: B60K,B60L,B60W,F16H,Y02T,Y10T

Abstract:
1. A driving power control device for a hybrid vehicle, comprising: an engine and a motor-generator as power sources; an automatic transmission disposed between the power sources and driving wheels with an intervening torque converter having a lockup clutch; and a control section for controlling selection of the power sources and for controlling a slip ratio of the lockup clutch of the torque converter using oil pressure, wherein the control section is adapted to determine a target amount of regeneration depending on regeneration amount determining factors obtained in accordance with the driving state of the vehicle, to calculate a required regeneration torque based on regenerative torque corresponding to the target amount of regeneration while also incorporating friction torque retrieved depending on friction torque determining factors, to perform feedforward control in which a base oil pressure with which the required regeneration torque is transmittable is calculated, and an oil pressure of the lockup clutch is controlled to the base oil pressure calculated so as to obtain a target slip ratio of the lockup clutch, and to control the oil pressure of the lockup clutch in a feedback manner based on a difference between the target slip ratio and an actual slip ratio.