Patent ID: 8121767
Filing Date: 2012-02-21
Classification: B60K,B60L,B60W,F16H,Y02T,Y10S

Abstract:
1. Method for controlling a powertrain system including an engine and first and second electric machines mechanically coupled to an electro-mechanical transmission to transfer power to an output member, comprising: monitoring operator inputs to an accelerator pedal and to a brake pedal; determining an immediate accelerator output torque request, a predicted accelerator output torque request, an immediate brake output torque request, a predicted brake output torque request, and an axle torque response type based upon the operator inputs to the accelerator pedal and the brake pedal; controlling engine states and an engine speed to transfer a desired input torque from the engine to the electro-mechanical transmission based on the immediate accelerator output torque request and the immediate brake output torque request, the desired input torque from the engine determined based on the predicted accelerator output torque request and the predicted brake output torque request; determining an output torque command for controlling the first and second electric machines based upon the immediate accelerator output torque request, the immediate brake output torque request and the axle torque response type; and controlling the first and second electric machines to transfer an output torque to the output member based upon the output torque command.