Electrical system for riding lawn care vehicle

Patent metadata

Field	Value
Publication number	US-10028431-B2
Application number	US-201615370139-A
Country	US
Kind code	B2
Filing date	Dec 6, 2016
Priority date	Dec 28, 2011
Publication date	Jul 24, 2018
Grant date	Jul 24, 2018

Abstract

A riding lawn mower is provided with an electrical system. The electrical system includes a control module, transceiver modules, and a wiring system. The control module allows for programmably controlling electrical operations of the riding lawn mower. The transceiver modules are operably connected with respective devices of the riding lawn mower so as to communicate data between the respective devices and the control module. The wiring system includes wires that electrically connect the transceiver modules with the control module. The wiring system includes a power wire that provides electrical power to the transceiver modules from the battery; and a data bus including a data wire that transmits data between the control module and the transceiver modules.

First claim

That which is claimed:

1. A riding lawn care vehicle comprising:
a frame;
an operator station operably coupled to the frame and configured to support an operator during operation of the riding lawn care vehicle;
wheels operably coupled to the frame;
a steering assembly operably coupled to the wheels and configured to receive steering inputs provided by the operator;
a control module configured to control electrical operations of the riding lawn care vehicle;
a first transceiver module operably coupled between the control module and a first device of the riding lawn care vehicle;
a second transceiver module operably coupled between the control module and a second device of the riding lawn care vehicle; and
a data wire operably coupling the first and second transceiver modules and the control module to enable two way communication between the control module and each of the first and second devices of the riding lawn care vehicle, the first and second transceiver modules each being operably coupled to the data wire in parallel,
wherein the data wire is configured to carry a first signal to activate the first device of the riding lawn care vehicle and a second signal to indicate a status of the second device of the riding lawn care vehicle.

2. The riding lawn care vehicle of claim 1 , further comprising a wiring harness, wherein the wiring harness comprises the data wire and a power wire, and wherein power for the first and second devices of the riding lawn care vehicle is provided via the power wire.

3. The riding lawn care vehicle of claim 2 , wherein the wiring harness further comprises a wakeup wire via which a third signal is provided to the first and second devices of the riding lawn care vehicle to wakeup the first and second devices of the riding lawn care vehicle, respectively.

4. The riding lawn care vehicle of claim 1 , wherein the data wire is a portion of a data bus, and wherein the data bus further comprises a data ground wire.

5. The riding lawn care vehicle of claim 1 , wherein a third signal is provided to the first and second devices of the riding lawn care vehicle to wakeup the first and second devices of the riding lawn care vehicle, respectively, via the data wire.

6. The riding lawn care vehicle of claim 1 , wherein the two way communication associated with the first and second signals is sequentially conducted in a timed fashion via the data wire.

7. The riding lawn care vehicle of claim 1 , wherein the first device comprises a brake, blade, power-take-off, or clutch of the riding lawn care vehicle, and wherein the second device comprises a bagging attachment, seat, brake, blade, or battery of the riding lawn care vehicle.

8. The riding lawn care vehicle of claim 1 , wherein the first transceiver module and the second transceiver module each comprises a switch and a transceiver, each transceiver configured to receive a request from the control module and to communicate data regarding status of the switch back to the control module via the data wire.

9. The riding lawn care vehicle of claim 8 , wherein a number of cycles of the switch is communicated to the control module via the data wire.

10. The riding lawn care vehicle of claim 9 , wherein the switch comprises one or more field effect transistors.

11. The riding lawn care vehicle of claim 1 ,
wherein the first transceiver module is associated with a first unique identifier, and the second transceiver module is associated with a second unique identifier,
wherein a respective one of the first and second unique identifiers is included in a header of a message transmitted on the data wire to indicate a corresponding addressee or originator of the message.

12. The riding lawn care vehicle of claim 1 , wherein the first and second transceiver modules are removable without further modification to the data wire.

13. The riding lawn care vehicle of claim 1 , wherein the data wire is configured to receive a third transceiver module without further modification to the data wire.

14. The riding lawn care vehicle of claim 1 , wherein the control module is configured to communicate wirelessly with a mobile communication device.

15. The riding lawn care vehicle of claim 14 , wherein the mobile communication device comprises a display configured to display the status of the second device of the riding lawn care vehicle and at least one or more other devices of the riding lawn care vehicle.

16. The riding lawn care vehicle of claim 14 , wherein the mobile communication device comprises a display configured to display a button for selection by a user to activate the first device of the riding lawn care vehicle.

17. The riding lawn care vehicle of claim 14 , wherein the mobile communication device comprises a display configured to display data requested by the user associated with a selected one of the first device or the second device of the riding lawn care vehicle.

18. An electrical system for a riding lawn care vehicle, the electrical system comprising:
a control module configured to control electrical operations of the riding lawn care vehicle;
a first transceiver module operably coupled between the control module and a first device of the riding lawn care vehicle;
a second transceiver module operably coupled between the control module and a second device of the riding lawn care vehicle; and
a wiring harness operably coupling the first and second transceiver modules and the control module to enable two way communication between the control module and each of the first and second devices of the riding lawn care vehicle, the first and second transceiver modules each being operably coupled to the wiring harness in parallel,
wherein the wiring harness is configured to carry a first signal to activate the first device of the riding lawn care vehicle and a second signal to indicate a status of the second device of the riding lawn care vehicle.

19. The electrical system of claim 18 , wherein the wiring harness comprises a power wire, a ground wire, and a data wire, wherein power for the first and second devices of the riding lawn care vehicle is provided via the power wire, and wherein the first and second signals are provided via the data wire.

20. The electrical system of claim 18 , wherein the first and second signals are each provided via a same wire of the wiring harness.

Assignees

• Husqvarna Ab

Inventors

• Albinger Matthew
• Drew Bernard

Classifications

• A01D34/005

  Mulching means · CPC title

• A01D2101/00

  Lawn-mowers · CPC title

• A01D34/78

  electric · CPC title

• A01D34/006

  Control or measuring arrangements · CPC title

• A01D69/02 Primary

  electric · CPC title