Battery pack for powering and controlling outdoor power equipment

Patent metadata

Field	Value
Publication number	US-11015565-B2
Application number	US-201816213576-A
Country	US
Kind code	B2
Filing date	Dec 7, 2018
Priority date	Dec 8, 2017
Publication date	May 25, 2021
Grant date	May 25, 2021

Abstract

A battery pack for use in providing starting power for a starter motor of an internal combustion engine and to supply power to one or more auxiliary loads. The battery pack includes an outer housing that encloses a plurality of battery cells. The battery pack further includes a control module. The control module includes a processing circuit configured to control one or more functions associated with the internal combustion engine and an interface circuit configured to interface with the internal combustion engine.

First claim

What is claimed is:

1. A battery pack for use in powering a starter motor to start an internal combustion engine, the battery pack comprising:
an outer housing;
a plurality of battery cells enclosed in the outer housing;
a plurality of terminals electrically coupled to the plurality of battery cells and forming a series of available electrical connections extending through the outer housing, wherein a first terminal in the plurality of terminals is an ignition input terminal; and
a processing circuit in communication with the ignition input terminal and configured to control a starting operation of the internal combustion engine upon determining that the internal combustion engine is not running and further configured to control one or more other functions associated with the internal combustion engine by communicating over a second terminal in the plurality of terminals, wherein the processing circuit is enclosed in the outer housing.

2. The battery pack of claim 1 further comprising an interface circuit configured to provide communication between the processing circuit and the internal combustion engine through the first terminal and the second terminal.

3. The battery pack of claim 2 wherein the interface circuit is coupled to an outer face of the outer housing.

4. The battery pack of claim 2 , wherein the interface circuit is coupled to a battery management circuit board enclosed in the outer housing.

5. The battery pack of claim 2 , wherein the interface circuit comprises a plurality of input and output (I/O) points for interfacing with one or more components of the internal combustion engine.

6. The battery pack of claim 5 , wherein the interface circuit is configured to interface, via the I/O points with one or more of a primary ignition system of the internal combustion engine, a crank shaft position sensor, an ignition kill of the internal combustion engine, a throttle plate controller of the internal combustion engine, a choke plate controller of the motor, and one or more electronic fuel injection coils.

7. The battery pack of claim 6 , wherein the processing circuit comprises an auto-choke module, the auto-choke module configured to interface with the choke plate controller of the engine, via the interface module to control a position of the choke plate based on data provided to the auto-choke module from the internal combustion engine via the interface module.

8. The battery pack of claim 6 , wherein the processing circuit comprises an electronic governor control module configured to govern the internal combustion engine.

9. The battery pack of claim 6 , wherein the processing circuit is configured to interface with the throttle plate controller of the engine, via the interface module, to control a position of the throttle plate based on data provided to the throttle control module from the internal combustion engine via the interface module.

10. The battery pack of claim 6 , wherein the processing circuit comprises an ignition control module configured to interface with the ignition system of the engine, via the interface module, to control the timing of the ignition system based on data provided to the ignition control module from the internal combustion engine via the interface module, wherein the ignition control module is connected to the ignition input terminal to determine whether to disconnect the plurality of battery cells from loads if an ignition switch is left in an on position.

11. The battery pack of claim 6 , wherein the processing circuit comprises an electronic fuel injection module configured to interface with one or more fuel injectors associated with the internal combustion engine, via the interface module, to control the operation of the fuel injections based on data provided to the electronic fuel injection module via the interface module.

12. The battery pack of claim 2 , wherein the interface circuit communicates with the processing circuit via a serial communication interface.

13. The battery pack of claim 2 , further comprising a wireless communication interface.

14. The battery pack of claim 13 , wherein the processing circuit comprises an internet of things module configured to communicate with one or more external devices via a connection to the internet.

15. A battery pack for use in powering a starter motor to start an internal combustion engine the battery pack comprising:
an outer housing;
a plurality of battery cells enclosed in the outer housing;
a plurality of terminals electrically coupled to the plurality of battery cells and forming a series of available electrical connections extending through the outer housing, wherein a first terminal in the plurality of terminals is an ignition input terminal; and
a control module in communication with the ignition input terminal and comprising a processing circuit configured to control a starting function of the internal combustion engine upon determining that the internal combustion engine is not running and further configured to control one or more other functions associated with the internal combustion engine by communicating over a second terminal in the plurality of terminals, control module further comprising an interface circuit coupled to the plurality of terminals and configured to interface with the internal combustion engine, wherein the processing circuit is enclosed in the outer housing of the battery pack.

16. The battery pack of claim 15 , wherein the interface circuit comprises a plurality of input and output points for interfacing with one or more systems associated with the internal combustion engine, and a communication interface for communicating with the processing circuit.

17. The battery pack of claim 15 , wherein the interface circuit is configured to be coupled to the exterior of the outer housing.

18. The battery pack of claim 15 , wherein the interface circuit is configured to be enclosed in the outer housing.

19. The battery pack of claim 15 , wherein the control module further comprises a wireless communication interface.

20. The battery pack of claim 19 , wherein the wireless communication interface is integrated into one of the processing circuit and the interface circuit.

Assignees

• Briggs & Stratton Llc

Inventors

• Koenen Robert

Classifications

• H01M50/284

  with incorporated circuit boards, e.g. printed circuit boards [PCB] · CPC title

• H01M50/213

  adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence) · CPC title

• H04L67/12

  specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks · CPC title

• F02D31/002

  controlling air supply · CPC title

• F02N11/0866

  comprising several power sources, e.g. battery and capacitor or two batteries · CPC title