System and method for operating an engine with an electrically driven compressor
AssigneeFord Global Technologies, LLC
InventorsTyler Kelly, Anthony Morelli, Patrick Matthews, Victor Martinez
Life of this patent
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Abstract
Methods and systems for operating an engine with an electrically driven compressor are described. In one example, a model in a controller determines one or more temperatures of the electrically driven compressor to establish a power output upper threshold that is not to be exceeded by the electrically driven compressor. Various actuators may be adjusted responsive to the power output upper threshold to reduce the possibility of electrically driven compressor degradation.
Claims20
An engine operating method, comprising:
- via a controller, reducing output of an electrically driven compressor that provides air to an engine according to a temperature of a liquid passing through the electrically driven compressor;
- and
- reducing the temperature of the liquid via reducing output of the engine via the controller.
An engine operating method, comprising:
- via a controller, reducing output of an electrically driven compressor that provides air to an engine according to an upper threshold output of the electrically driven compressor, the upper threshold output of the electrically driven compressor based on a temperature of a liquid that passes through the electrically driven compressor and the engine;
- and
- via the controller, adjusting a device to reduce the temperature of the liquid in response to reducing the upper threshold.
An engine system, comprising:
- an internal combustion engine;
- an electrically driven compressor coupled to the engine;
- and
- a controller including executable instructions stored in non-transitory memory to deactivate an electric machine according to output of a model that describes a temperature of the electrically driven compressor as a function of a temperature of a liquid and a flow rate of the liquid through the electrically driven compressor.
Dependencies are inferred from the claim text.