Modular vehicle system having engine unit and mower unit for communication therewith

• US 7,089,721 B2
• Filed: 10/30/2003
• Issued: 08/15/2006
• Est. Priority Date: 10/30/2003
• Status: Expired due to Term

• Current Assignee: Deere & Company
• Original Assignee: Deere & Company
• Inventors: Reid, John Franklin, Turner, Christopher David Glenn
• Primary Examiner(s): Petravick, Meredith C.
• Application Number:
  US10/697,346
• Publication Number:
  US 20050091953A1
• Time in Patent Office: 1,020 Days
• Field of Search: 56/105, 56/102.A, 700/253, 701/23, 701/25
• US Class Current: 56/10.20A
• CPC Class Codes: A01D 34/006 Control or measuring arrangements
• CPC Class Codes: G05D 1/021 specially adapted to land vehicles

Abstract

A modular vehicle system comprises an engine unit and an engine management controller associated with the engine unit. A throttle actuator is associated with the engine management controller to control a throttle setting of an engine unit. A mower unit is associated with mower electronics. A blade clutch actuator activates or deactivates a cutting blade of the mower unit. A transmission line supports communications between the engine management controller and the mower electronics to support remote control mowing or unmanned mowing activities.

Claims

1. A modular vehicle, the modular vehicle comprising:

an engine unit associated with vehicular electronics;

a mower unit mechanically connected to the engine unit, the mower unit associated with mower electronics;

a communications link between the vehicular electronics and the mower electronics supports the communication of status data associated with the mower unit, where the communications link comprises a transmission line;

a status signal associated with the transmission line indicating whether the mower unit is coupled or decoupled to the engine unit;

a controller is programmed to stop an operation or activity of the mower unit in response to detection of a deficient communication channel associated with the communications link.

2. The modular vehicle according claim 1 further comprising:

a user interface;

a transceiver coupled to the user interface and supporting remote control of at least one of the following;

emergency stopping of the mower unit, emergency stopping of a blade of the mower unit, adjustment of mowing height of the mower unit, activating rotation of the blade of the mower unit, deactivating rotation of the blade of the mower unit, directing motion of the mower unit, directing a position of the mower unit, and detecting an obstacle around the mower unit.

3. The modular vehicle according to claim 1 further comprising:

a location-determining receiver for determining a location of the engine unit;

a path planning module for establishing a planned path for the engine unit,

a navigation module for guiding the vehicle along the planned path based on the determined location,

an obstacle detection module to detect obstacles in at least one of the planned path and a defined region about the mower unit.

4. The modular vehicle according to claim 1 further comprising:

an obstacle detection sensor for detecting obstacles in a defined region about the mower, the obstacle detection sensor associated with the mower electronics.

5. The modular vehicle according to claim 1 wherein the vehicle electronics further comprise a mower controller for managing at least one of an emergency stop switch, a blade clutch actuator, a mow height actuator, an engine disable switch, and an obstacle detection sensor.