| 摘要 |
A drive system for a mobile machine is disclosed. The drive system may have an engine-driven pump, and a motor connected to the pump. The drive system may also have a speed input to select a maximum allowable engine speed, a throttle input to indicate a desired speed of the engine as a function of the maximum allowable engine speed, a transmission input to select a desired transmission control setting, and a controller configured to selectively adjust operation of the engine based on the throttle input and to selectively limit the actual engine speed based on the maximum allowable speed. The controller may also select for use a particular relationship between the actual engine speed and a travel speed from a plurality of available relationships based on the desired transmission control setting, and selectively adjust displacements of the pump and motor based on the actual engine speed and the selected particular relationship.
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