Patent ID: 6482125
Filing Date: 2002-11-19
Classification: B60K,B60L,B60W,F16H,Y02T,Y10S,Y10T

Abstract:
An upshift shock reducing apparatus for a vehicle having a power train that includes a power source mechanically connected to an automatic transmission having a plurality of shift gears, the upshift shock reducing apparatus comprising:a power source load sensor that produces a load signal indicative of a power source load of the power source; and a controller operatively coupled to the power source load sensor, the power source, and the automatic transmission, the controller being configured to increase torque of the power source during a torque phase of an upshift operation for a first predetermined period at a predetermined rate, and the controller being configured to decrease the torque of the power source by a first predetermined torque at an end of a second predetermined period, the second predetermined period being determined based on the load signal from the power source load sensor, such that the decrease of the torque starts before an inertia phase of the upshift operation.