Powertrain optimization

• US 10,030,764 B2
• Filed: 05/14/2015
• Issued: 07/24/2018
• Est. Priority Date: 05/15/2014
• Status: Active Grant

• Current Assignee: Cummins Incorporated
• Original Assignee: Cummins Incorporated
• Inventors: Sujan, Vivek A.
• Primary Examiner(s): Le, Huan
• Application Number:
  US14/712,003
• Publication Number:
  US 20150330500A1
• Time in Patent Office: 1,167 Days
• CPC Class Codes: F16H 2061/0012 Transmission control for optimising power output of driveline
• CPC Class Codes: F16H 2061/0015 Transmission control for optimising fuel consumptions
• CPC Class Codes: F16H 2061/0018 Transmission control for optimising exhaust emissions
• CPC Class Codes: F16H 2061/0227 Shift map selection, i.e. methods for controlling selection between different shift maps, e.g. to initiate switch to a map for up-hill driving
• CPC Class Codes: F16H 2061/0232 Selecting ratios for bringing engine into a particular state, e.g. for fast warming up or for reducing exhaust emissions
• CPC Class Codes: F16H 59/74 Inputs being a function of engine parameters F16H59/14 takes precedence
• CPC Class Codes: F16H 61/0204 for gearshift control, e.g. control functions for performing shifting or generation of shift signal
• CPC Class Codes: F16H 61/0213 characterised by the method for generating shift signals

Abstract

A system for a vehicle includes a powertrain system including an engine, a transmission, a drive shaft, and a final drive. The system also includes a controller communicably coupled to the powertrain system. The controller is structured to: receive vehicle operation data during operation of a vehicle; receive route data for a route of the vehicle, wherein the route data is received in advance of the vehicle traveling the route; determine a cylinder deactivation event has occurred based on the vehicle operation data; determine an adjustment to a shift schedule for the transmission based on at least one of the cylinder deactivation event and the route data; and provide a command to implement the adjustment with the transmission.

Claims

1. An apparatus, comprising:

a vehicle operation module structured to receive operation data regarding operation of a vehicle;

an operating state module structured to determine that the vehicle is operating in a non-nominal state responsive to the operation data, the operation data including at least one of an engine speed and an engine torque, wherein the operating state module is structured to determine that the vehicle is operating in a cylinder cutout mode responsive to the engine speed and the engine torque; and

a transmission module structured to adjust a shift schedule of a transmission of the vehicle responsive to the determined non-nominal operating state for the vehicle, wherein the transmission module is further structured to control the transmission based on the adjusted shift schedule.

2. The apparatus of claim 1, further comprising a route module structured to receive route data indicative of an upcoming terrain for a designated route of the vehicle, wherein the operating state module is structured to determine an upcoming non-nominal operating state for the vehicle during a segment of the designated route, and wherein the transmission module is structured to adjust the shift schedule of the transmission in advance of the vehicle reaching the segment of the designated route.

3. The apparatus of claim 1, further comprising a network communications module structured to receive dynamic data from at least one of another vehicle and a communications center, wherein the operating state module is structured to determine an expected non-nominal operating state for the vehicle based on the dynamic data, and wherein the transmission module is structured to adjust the shift schedule for the transmission based on the determined expected non-nominal operating state for the vehicle.

4. The apparatus of claim 1, further comprising an operator interface module, wherein the operator interface module is structured to receive an input that indicates that the vehicle is currently in the non-nominal state.

5. The apparatus of claim 4, wherein the input further includes a desired operating parameter for the vehicle, wherein the transmission module is structured to adjust the shift schedule in response to the desired operating parameter.

6. The apparatus of claim 1, wherein the non-nominal state includes at least one of a diagnostic session, a prognostic session, and a derate operating condition.

7. The apparatus of claim 1, wherein the adjustment of the shift schedule includes at least one of an adjustment of an upshift and a downshift operating point for at least one transmission setting of the transmission.

8. A vehicle, comprising:

a powertrain system including an engine coupled to a transmission; and

a controller communicably coupled to the powertrain system, the controller structured to;

receive operation data regarding operation of the powertrain system;

determine the engine is operating in a non-nominal state responsive to the operation data;

adjust a shift schedule for the transmission based on the determined non-nominal state of operation for the engine; and

control the transmission based on the adjusted shift schedule,

wherein the operation data includes at least one of an engine speed and an engine torque, wherein the controller is structured to determine that the engine is operating in a cylinder cutout mode responsive to the engine speed and the engine torque.

9. The vehicle of claim 8, wherein the controller is structured to receive an operating parameter, wherein the controller is structured to adjust the shift schedule of the transmission based on the determined cylinder cutout mode and as a function of the operating parameter.

10. The vehicle of claim 9, wherein the operating parameter includes at least one of a fluid consumption rate and a power output for the engine.

11. The vehicle of claim 10, wherein the controller lowers a nominal engine speed upshift operating point for at least one transmission setting in the shift schedule responsive to receiving an indication to reduce the fuel consumption rate for the vehicle.

12. The vehicle of claim 8, wherein the adjustment is based on at least one of a lugback management feature, a vehicle operating parameter, a noise emissions level, and an exhaust emissions characteristic.

13. The vehicle of claim 8, wherein the controller is structured to receive an input, wherein the input is configured to define an operating condition corresponding to an associated non-nominal state of operation for the engine.

14. The vehicle of claim 8, wherein the non-nominal state includes at least one of a diagnostic session, a prognostic session, an altitude condition, and a derate operating condition.

15. A method, comprising:

interpreting, by a controller, at least one of vehicle operation data regarding operation of a vehicle, route data regarding an upcoming terrain condition for a route of the vehicle, and dynamic data from at least one of another vehicle and a communications center regarding an upcoming operating condition for the vehicle;

determining, by the controller, that the vehicle is at least one of in a non-nominal operating state and about to be in the non-nominal operating state;

determining, by the controller, that the vehicle is operating in a cylinder cutout mode based on the operation data indicating an engine torque and an engine speed corresponding with an operation condition for an engine of the vehicle during the cylinder cutout mode;

adjusting, by the controller, a shift schedule for a transmission of the vehicle responsive to the determination that the vehicle is in or about to be in the non-nominal operating state; and

controlling, by the controller, the transmission based on the adjusted shift schedule.

16. The method of claim 15, wherein the non-nominal state includes at least one of a diagnostic session, a prognostic session, an altitude condition, a cold condition, and a derate operating condition.

17. The method of claim 15, wherein the adjustment to the shift schedule includes at least one of an adjustment to a nominal state upshift and downshift operating point for at least one transmission setting of the transmission.

18. The method of claim 17, further comprising receiving, by the controller, an operating parameter for the vehicle, wherein the controller is structured to adjust the shift schedule of the transmission in response to the operating parameter.