METHOD TO CONTROL VEHICULAR POWERTRAIN BY MONITORING MAP PREVIEW INFORMATION
First Claim
Patent Images
1. Method of operating a vehicular powertrain including an internal combustion engine, comprising:
- monitoring map preview information;
determining a projected vehicle path based upon said map preview information;
determining likely engine operation demands along said projected vehicle path, wherein said likely engine operation demands includes likely required engine speeds and likely required engine loads;
determining selectable engine operating modes at each likely engine operation demand; and
executing engine operation based upon said selectable engine operating modes.
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Abstract
A method of operating a vehicular powertrain including an internal combustion engine includes monitoring map preview information, determining a projected vehicle path based upon the map preview information, determining likely engine operation demands along the projected vehicle path, wherein the likely engine operation demands include likely required engine speeds and likely required engine loads, determining selectable engine operating modes at each likely engine operating demand, and executing engine operation based upon the selectable engine operating modes.
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Citations
19 Claims
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1. Method of operating a vehicular powertrain including an internal combustion engine, comprising:
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monitoring map preview information; determining a projected vehicle path based upon said map preview information; determining likely engine operation demands along said projected vehicle path, wherein said likely engine operation demands includes likely required engine speeds and likely required engine loads; determining selectable engine operating modes at each likely engine operation demand; and executing engine operation based upon said selectable engine operating modes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. Method of operating a vehicular powertrain including an internal combustion engine, comprising:
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monitoring map preview information; determining a likely vehicle route of travel based upon said map preview information; determining likely engine operation demands at periodic points along said likely vehicle route of travel, wherein said likely engine operation demands includes likely required engine speeds and likely required engine loads; determining operating characteristics of selectable engine operating modes at each likely engine operation demand; and formulating an engine control schedule by balancing said operating characteristics through said likely vehicle route of travel.
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19. Method of operating a hybrid vehicular powertrain including an internal combustion engine, an electric machine, and an electromechanical transmission selectively operating to meet powertrain operation demands, comprising:
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monitoring map preview information; determining a likely vehicle route of travel based upon said map preview information; determining likely powertrain operation demands along said likely vehicle route of travel, wherein said likely powertrain operation demands includes likely required powertrain speeds and likely required powertrain loads; determining operating characteristics of selectable engine operating modes available along said likely vehicle route of travel; balancing said operating characteristics of said selectable engine operating modes and potential energy utilization by said electric machine based upon said likely vehicle route of travel; and formulating a hybrid powertrain control strategy based upon said balancing.
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Specification