Patent ID: 9050970
Filing Date: 2015-06-09
Classification: B60K,B60L,B60W,Y02T,Y10S

Abstract:
1. A driving torque control device for a hybrid vehicle having an engine and a motor/generator as a power source and configured to select an electric vehicle mode in which the vehicle travels only using power from the motor/generator or a hybrid electric vehicle mode in which the vehicle travels using power from both the engine and the motor/generator to determine a driving force based on information corresponding to a driver request load and to perform switching between the electric vehicle mode and the hybrid electric vehicle mode, the driving torque control device comprising: an engine torque estimation unit configured to estimate an engine torque by compensating for a retardation caused by a delay filter in an engine torque instruction value while the vehicle is traveling in the hybrid electric vehicle mode, and a retardation factor selection unit configured to select, as a retardation factor indicating a retardation degree of the delay filter, any one of an increase-side retardation factor for which the engine torque instruction value increases and a decrease-side retardation factor for which the engine torque instruction value decreases, wherein the retardation factor selection unit is configured to perform switching between the increase-side retardation factor and the decrease-side retardation factor while a difference between the engine torque estimated by the engine torque estimation unit and the engine torque instruction value as a filter input value for the delay filter is equal to or smaller than a predetermined value.