Vehicle propulsion system
A vehicle propulsion system includes an internal combustion engine having an engine output, an electro-mechanical transmission and a control system. The engine output is coupled to the transmission output at a speed ratio which is established by one of a plurality of electrically variable or fixed operating modes. Selection and control among the various operating modes is managed by a control in accordance with preferred optimum operating costs.
GM Global Technology Operations, Inc.
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Alan G. Gregory A. Anthony H. William R.
Holmes Hubbard Heap Cawthorne