Communication interface for start-stop systems and methods

• US 10,081,361 B2
• Filed: 07/28/2016
• Issued: 09/25/2018
• Est. Priority Date: 01/08/2016
• Status: Active Grant

• Current Assignee: Cummins Incorporated
• Original Assignee: Cummins Incorporated
• Inventors: Books, Martin T., O'Brien, John P., Muralidhar, Praveen C., Prasad, Jaideep, Bergstedt, Randal L., Alsman, Ian N., Singh, Jagdeep I., Kalirai, Rajan S., Salve, Rima, Rauch, Jeffrey S.
• Primary Examiner(s): Antonucci, Anne Marie
• Application Number:
  US15/222,120
• Publication Number:
  US 20170197622A1
• Time in Patent Office: 789 Days
• CPC Class Codes: B60K 6/20 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
• CPC Class Codes: B60K 6/48 Parallel type
• CPC Class Codes: B60R 16/0236 for economical driving
• CPC Class Codes: B60R 16/03 for supply of electrical power to vehicle subsystems or for circuit arrangements for charging batteries H02J7/00
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 20/00 Control systems specially adapted for hybrid vehicles hybrid vehicle design, B60K6/00; electric vehicles B60L
• CPC Class Codes: B60W 2300/17 Construction vehicles, e.g. graders, excavators
• CPC Class Codes: B60W 30/18018 Start-stop drive, e.g. in a traffic jam
• CPC Class Codes: B62D 15/021 Determination of steering angle
• CPC Class Codes: F02N 11/084 State of vehicle accessories, e.g. air condition or power steering
• CPC Class Codes: F02N 2200/061 Battery state of charge [SOC]
• CPC Class Codes: F02N 2200/0809 Electrical loads
• CPC Class Codes: F02N 2300/2006 using prediction of future conditions
• CPC Class Codes: Y02T 10/40 Engine management systems
• CPC Class Codes: Y02T 10/62 Hybrid vehicles

Abstract

Systems and methods for implementing a start-stop feature on a vehicle powered at least in part by an internal combustion engine include receiving, at an electronic control unit (“ECU”) of the vehicle, an indication that the vehicle is in line at a drive-thru; determining, by the ECU, a number of startstop events anticipated during the drive-thru; determining, by the ECU, an approximate stop time for each of the number of start-stop events; determining, by the ECU, that a battery of the vehicle has enough remaining charge to power a plurality of vehicle components during implementation of the start-stop feature; implementing, by the ECU, the start-stop feature in which the internal combustion engine is turned off for at least a portion of the time when the vehicle is stopped

Claims

1. A system comprising:

an engine control unit (“

ECU”

), the ECU structured to control the operation of an internal combustion engine structured to drive a vehicle and provide power to other components of the vehicle, the other components of the vehicle structured to receive an operator input and generate signals based on the operator input, the ECU including;

a processor,

memory,

a start-stop control module including programming and circuitry to allow the ECU to implement a start-stop feature that stops the internal combustion engine during periods of expected extended idling to conserve fuel, and

an original equipment manufacturer (“

OEM”

) hardware interface module that allows the ECU to send signals to and receive signals from the other components of the vehicle such that the other components can provide input into the start-stop control module to affect when the internal combustion engine is stopped and restarted, wherein the input comprises an engine shutdown inhibit signal generated based on the operator input, the engine shutdown inhibit signal structured to prevent the ECU from automatically stopping the internal combustion engine.

2. The system of claim 1, wherein the signals received from other systems relate to engine shutdown inhibit signals and engine restart signals.

3. The system of claim 2, wherein the signals to and from the OEM hardware interface module are sent via a Society of Automotive Engineers (“

SAE”

) J1939 vehicle bus system.

4. The system of claim 1, wherein the OEM hardware interface module is configured to send operator notifications to an operator indicator via a communication module structured to send and receive data to and from the ECU.

5. The system of claim 1, wherein the other components of the vehicle are manufactured by parties other than the manufacturer of the ECU.

6. The system of claim 1, wherein the internal combustion engine provides power to a construction device manufactured by an entity other than the OEM, and wherein a controller of the construction device is structured to communicate with the ECU via the OEM hardware interface module.

7. The system of claim 1, wherein the internal combustion engine is part of a hybrid powertrain of a vehicle, and wherein other components of the hybrid powertrain communicate with the ECU via the OEM hardware interface module.

8. The system of claim 1, wherein the other components include a steering wheel position sensor that communicates with the ECU via the OEM hardware interface module.

9. The system of claim 1, wherein the other components include an implement monitoring system that communicates a position or a movement of an implement to the ECU via the OEM hardware interface module.

10. The system of claim 9, wherein the implement is a bucket or a fork of a construction equipment.

11. The system of claim 1, wherein a joystick control system communicates information relating to a position of a joystick or a hydraulic pressure associated with the joystick with the ECU via the OEM hardware interface module, wherein the joystick controls an implement of a construction device.

12. The system of claim 1, wherein the other components of the vehicle includes at least one of a steering control system, a joystick control system, an air conditioning compressor, a parking brake, and a seat position detection system.

13. A system comprising:

an engine control unit (“

ECU”

) structured to control operation of an internal combustion engine structured to drive a vehicle and provide power to other components of the vehicle, the other components of the vehicle including a fluid sensor structured to receive data indicative of a characteristic of a fluid received in at least one of the other components, the ECU including;

a processor,

memory,

a start-stop control module including programming and circuitry to allow the ECU to implement a start-stop feature that stops the internal combustion engine during periods of expected extended idling to conserve fuel, and

an original equipment manufacturer (“

OEM”

) hardware interface module that allows the ECU to send signals to and receive signals from the other components of the vehicle such that the other components can provide input into the start-stop control module to affect when the internal combustion engine is stopped and restarted, wherein the input comprises an engine shutdown inhibit signal generated based on the data indicative of the characteristic of the fluid, the engine shutdown inhibit signal structured to prevent the ECU from automatically stopping the internal combustion engine.

14. The system of claim 13, wherein the fluid is at least one of hydraulic fluid, oil, and fuel.

15. The system of claim 13, wherein the OEM hardware interface module is structured to generate the engine shutdown inhibit signal based on the characteristic of the fluid indicating use of at least one of the other components of the vehicle.

16. The system of claim 15, wherein the characteristic of the fluid is a pressure of the fluid.

17. The system of claim 15, wherein the characteristic of the fluid is a temperature of the fluid.

18. A system structured to control operation of an internal combustion engine, the internal combustion engine structured to drive a vehicle and to provide power to a fluid sensor and to an engine control unit (“

ECU”

) structured to control the operation of the internal combustion engine and to implement a start-stop feature structured to stop the internal combustion engine during periods of expected extended idling to conserve fuel, the system comprising;

an original equipment manufacturer (“

OEM”

) hardware interface module structured to enable the ECU to send signals to and receive signals from the fluid sensor such that the start-stop control module receives input from the fluid sensor that affects when the internal combustion engine is stopped and restarted, wherein the input comprises an engine shutdown inhibit signal generated based on a characteristic of a fluid of the vehicle, and wherein the engine shutdown inhibit signal is structured to prevent the ECU from automatically stopping the internal combustion engine.

19. The system of claim 18, wherein the fluid is at least one of hydraulic fluid, oil, and fuel.

20. The system of claim 18, wherein the OEM hardware interface module is structured to generate the engine shutdown inhibit signal based on the characteristic of the fluid indicating use of at least one other component of the vehicle.