Creation and depletion of short term power capability in a hybrid electric vehicle

Abstract

Short term power limits of an electrical energy storage device are progressively tightened toward long term power limits in accordance with net energy flow or magnitude or duration metrics.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application No. 60 / 985,222, filed November 3, 2007, which is incorporated herein by reference. technical field [0003] The present disclosure relates to control systems for electromechanical transmissions. Background technique [0004] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0005] Known powertrain architectures include torque-generative devices including internal combustion engines and electric machines that transmit torque to output members through a transmission device. A typical powertrain includes a dual-mode compound split electromechanical transmission employing an input member that receives motion torque from a tractor power source, preferably an internal combustion engine, and an output member. The output member is operatively connected to the driveline of ...

AI Technical Summary

Problems solved by technology

However, transmission operations including transmission shifting, engine starting, and regenerative braking may require short-term discharge or charge rates beyond the maximum discharge and charge rates

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