System and methods of adjusting a transmission shift schedule
First Claim
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1. A method, comprising:
- receiving a shift schedule for a transmission of a vehicle, the shift schedule indicating when shift events occur based on operation of the vehicle;
receiving vehicle operation data regarding operation of the vehicle;
determining a power to overcome vehicle losses based on the vehicle operation data;
determining an adjustment to the shift schedule responsive to the determined power to overcome losses and a vehicle operating parameter; and
implementing the adjustment with the shift schedule of the transmission, wherein the adjustment includes one of a delay to a scheduled shift event, an early implementation of the scheduled shift event, or a skipping of the scheduled shift event.
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Abstract
A method for a vehicle includes receiving a shift schedule for a transmission of a vehicle, the shift schedule indicating when shift events occur based on operation of the vehicle. The method further includes receiving vehicle operation data during operation of the vehicle. The method further includes determining a power to overcome vehicle losses based on the vehicle operation data. The method further includes determining an adjustment to the shift schedule to optimize a vehicle operating parameter based on the determined power to overcome vehicle losses and implementing the adjustment to the shift schedule.
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Citations
20 Claims
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1. A method, comprising:
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receiving a shift schedule for a transmission of a vehicle, the shift schedule indicating when shift events occur based on operation of the vehicle; receiving vehicle operation data regarding operation of the vehicle; determining a power to overcome vehicle losses based on the vehicle operation data; determining an adjustment to the shift schedule responsive to the determined power to overcome losses and a vehicle operating parameter; and implementing the adjustment with the shift schedule of the transmission, wherein the adjustment includes one of a delay to a scheduled shift event, an early implementation of the scheduled shift event, or a skipping of the scheduled shift event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system, comprising:
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a powertrain system including an engine and a transmission; and a controller communicably coupled to the power train system, the controller structured to; receive a shift schedule for the transmission of a vehicle, the shift schedule indicating when shift events occur based on operation of the vehicle; receive vehicle operation data regarding operation of the vehicle; determine a power to overcome vehicle losses based on the vehicle operation data; determine an adjustment to the shift schedule responsive to the determined power to overcome losses and a vehicle operating parameter; and implement the adjustment with the shift schedule, wherein the adjustment includes one of a delay to a scheduled shift event, an early implementation of the scheduled shift event, or a skipping of the scheduled shift event. - View Dependent Claims (10, 11, 12, 13)
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14. An apparatus, comprising:
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a vehicle operation module structured to receive operation data regarding operation of a vehicle; a power module structured to determine a power to overcome vehicle losses in response to the vehicle operation data and based on an expression for vehicle losses using vehicle speed; and a transmission module structured to adjust a shift schedule of a transmission of the vehicle responsive to the determined power to overcome vehicle losses and a vehicle operating parameter, wherein the adjustment includes one of a delay to a scheduled shift event, an early implementation of the scheduled shift event, or a skipping of the scheduled shift event. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification