US6230089B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turf maintenance vehicle multiple controller method and apparatus
Assignee: Toro Co
•
Filing: 1996-11-27
•
Granted: 2001-05-08
•
Expires: 2016-11-27
Abstract
Abstract A system for communicating between a plurality of electronic control units (ECU's) located on-board a turf maintenance system is provided. The controllers are connected by a common bus network. When the ECU's boot up a primary controller sends a message out on the bus requesting a response if any secondary controllers are connected to the bus. The secondary controllers are programmed to listen for the request, to generate a message to identify itself, and to transmit the requested message to identify itself over the bus. The primary controller waits for a predetermined time to receive and identify the secondary controller message. The primary controller then polls for additional secondary controllers in a similar manner. Accordingly, the primary controller sequentially determines whether additional controllers are connected to the bus. Once the initial list of ECU's is built, the primary controller moves into a main program loop, including routines to exchange information with each of the secondary controllers which identified themselves during the polling process.
Inventors
- 👤 Dana R. Lonn
- 👤 Eric Allen Metheny
- 👤 James Robert Gaebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:04
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/006; A01D41/00; A01D41/12; A01D41/127; A01D41/1274; A01D34/01; A01D34/412; A01D34/42; A01D34/46; A01D34/47; A01D34/475; A01D34/56; A01D34/60; G; G01; G01M; G01M3/00; G01M3/02; G01M3/26; G01M3/32; G01M3/3236; G01M3/3245; G06; G06F; G06F11/00; G06F11/30; G06F11/32; G06F11/321
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
108 words
A method of networking a plurality of processors on a turf maintenance system, comprising the steps of: (a) connecting a primary controller on-board a turf maintenance system to one or more secondary controllers on-board the turf maintenance system via a bus, wherein the primary controller and the one or more secondary controllers each perform a different function on the turf maintenance system, and the primary controller controls the cutting clip; (b) polling the secondary controllers over the bus to determine if they are connected to the bus and operative; (c) determining if the secondary controllers respond; and (d) passing information between the primary and secondary controllers that respond.
Claim 2
Independent Claim
108 words
A method of networking a plurality of processors on a turf maintenance system, comprising the steps of: (a) connecting a primary controller on-board a turf maintenance system to one or more secondary controllers on-board the turf maintenance system via a bus, wherein the primary controller and the one or more secondary controllers each perform a different function on the turf maintenance system, and the primary controller controls the cutting clip; (b) polling the secondary controllers over the bus to determine if they are connected to the bus and operative; (c) determining if the secondary controllers respond; and (d) passing information between the primary and secondary controllers that respond.
Claim 3
Dependent Claim
18 words
The method of claim 1 , further comprising the step of periodically repeating steps b, c and d.
Claim 4
Independent Claim
117 words
A method of networking a plurality of processors on a turf maintenance system, comprising the steps of: (a) connecting a primary controller on-board a turf maintenance system to one or more secondary controllers on-board the turf maintenance system via a bus, wherein the primary controller and the one or more secondary controllers each perform a different function on the turf maintenance system, and wherein one of the one or more secondary controllers detects if a hydraulic fluid leak occurs; (b) polling the secondary controllers over the bus to determine if they are connected to the bus and operative; (c) determining if the secondary controllers respond; and (d) passing information between the primary and secondary controllers that respond.
Claim 5
Independent Claim
117 words
A method of networking a plurality of processors on a turf maintenance system, comprising the steps of: (a) connecting a primary controller on-board a turf maintenance system to one or more secondary controllers on-board the turf maintenance system via a bus, wherein the primary controller and the one or more secondary controllers each perform a different function on the turf maintenance system, and wherein one of the one or more secondary controllers detects if a hydraulic fluid leak occurs; (b) polling the secondary controllers over the bus to determine if they are connected to the bus and operative; (c) determining if the secondary controllers respond; and (d) passing information between the primary and secondary controllers that respond.
Claim 6
Dependent Claim
18 words
The method of claim 3 , further comprising the step of periodically repeating steps b, c and d.
Claim 7
Independent Claim
115 words
A method of networking a plurality of processors on a turf maintenance system, comprising the steps of: (a) connecting a primary controller on-board a turf maintenance system to one or more secondary controllers on-board the turf maintenance system via a bus, wherein the primary controller and the one or more secondary controllers each perform a different function on the turf maintenance system, and the primary controller monitors the status of the transmission of the turf maintenance system; (b) polling the secondary controllers over the bus to determine if they are connected to the bus and operative; (c) determining if the secondary controllers respond; and (d) passing information between the primary and secondary controllers that respond.
Claim 8
Independent Claim
115 words
A method of networking a plurality of processors on a turf maintenance system, comprising the steps of: (a) connecting a primary controller on-board a turf maintenance system to one or more secondary controllers on-board the turf maintenance system via a bus, wherein the primary controller and the one or more secondary controllers each perform a different function on the turf maintenance system, and the primary controller monitors the status of the transmission of the turf maintenance system; (b) polling the secondary controllers over the bus to determine if they are connected to the bus and operative; (c) determining if the secondary controllers respond; and (d) passing information between the primary and secondary controllers that respond.
Claim 9
Dependent Claim
18 words
The method of claim 5 , further comprising the step of periodically repeating steps b, c and d.
Claim 10
Independent Claim
115 words
A method of networking a plurality of processors on a turf maintenance system, comprising the steps of: (a) connecting a primary controller on-board a turf maintenance system to one or more secondary controllers on-board the turf maintenance system via a bus, wherein the primary controller and the one or more secondary controllers each perform a different function on the turf maintenance system, and the primary controller monitors the presence of an operator on the turf maintenance system; (b) polling the secondary controllers over the bus to determine if they are connected to the bus and operative; (c) determining if the secondary controllers respond; and (d) passing information between the primary and secondary controllers that respond.
Claim 11
Independent Claim
115 words
A method of networking a plurality of processors on a turf maintenance system, comprising the steps of: (a) connecting a primary controller on-board a turf maintenance system to one or more secondary controllers on-board the turf maintenance system via a bus, wherein the primary controller and the one or more secondary controllers each perform a different function on the turf maintenance system, and the primary controller monitors the presence of an operator on the turf maintenance system; (b) polling the secondary controllers over the bus to determine if they are connected to the bus and operative; (c) determining if the secondary controllers respond; and (d) passing information between the primary and secondary controllers that respond.
Claim 12
Dependent Claim
18 words
The method of claim 7 , further comprising the step of periodically repeating steps b, c and d.
Claim 13
Independent Claim
141 words
A method of networking a plurality of processors on a turf maintenance system, comprising the steps of: (a) connecting a primary controller on-board a turf maintenance system to one or more secondary controllers on-board the turf maintenance system via a bus, wherein the primary controller and the one or more secondary controllers each perform a different function on the turf maintenance system, and the primary controller monitors a plurality of input parameters of the turf maintenance system, including the status of the transmission and the presence of an operator on the turf maintenance system, and wherein the primary controller controls the cutting clip; (b) polling the secondary controllers over the bus to determine if they are connected to the bus and operative; (c) determining if the secondary controllers respond; and (d) passing information between the primary and secondary controllers that respond.
Claim 14
Independent Claim
141 words
A method of networking a plurality of processors on a turf maintenance system, comprising the steps of: (a) connecting a primary controller on-board a turf maintenance system to one or more secondary controllers on-board the turf maintenance system via a bus, wherein the primary controller and the one or more secondary controllers each perform a different function on the turf maintenance system, and the primary controller monitors a plurality of input parameters of the turf maintenance system, including the status of the transmission and the presence of an operator on the turf maintenance system, and wherein the primary controller controls the cutting clip; (b) polling the secondary controllers over the bus to determine if they are connected to the bus and operative; (c) determining if the secondary controllers respond; and (d) passing information between the primary and secondary controllers that respond.
Claim 15
Dependent Claim
18 words
The method of claim 9 , further comprising the step of periodically repeating steps b, c and d.
Claim 16
Independent Claim
116 words
An apparatus for a turf maintenance system for implementing a controller area network, comprising: (a) an electrical bus; (b) a primary controller device, operatively connected to the bus, for monitoring the status of the transmission of the turf maintenance system; (c) at least one secondary controller device, operatively connected to the bus, for controlling a process of the turf maintenance system; and (d) wherein the primary controller device includes: (i) transmission means for passing information between the primary and secondary controller devices over the bus; (ii) means for polling the secondary controllers to respond by transmitting an identification message over the bus to the primary controller; and (iii) means for determining if the secondary controllers respond.
Claim 17
Independent Claim
116 words
An apparatus for a turf maintenance system for implementing a controller area network, comprising: (a) an electrical bus; (b) a primary controller device, operatively connected to the bus, for monitoring the status of the transmission of the turf maintenance system; (c) at least one secondary controller device, operatively connected to the bus, for controlling a process of the turf maintenance system; and (d) wherein the primary controller device includes: (i) transmission means for passing information between the primary and secondary controller devices over the bus; (ii) means for polling the secondary controllers to respond by transmitting an identification message over the bus to the primary controller; and (iii) means for determining if the secondary controllers respond.
Claim 18
Independent Claim
116 words
An apparatus for a turf maintenance system for implementing a controller area network, comprising: (a) an electrical bus; (b) a primary controller device, operatively connected to the bus, for monitoring the presence of an operator on the turf maintenance system; (c) at least one secondary controller device, operatively connected to the bus, for controlling a process of the turf maintenance system; and (d) wherein the primary controller device includes: (i) transmission means for passing information between the primary and secondary controller devices over the bus; (ii) means for polling the secondary controllers to respond by transmitting an identification message over the bus to the primary controller; and (iii) means for determining if the secondary controllers respond.
Claim 19
Independent Claim
116 words
An apparatus for a turf maintenance system for implementing a controller area network, comprising: (a) an electrical bus; (b) a primary controller device, operatively connected to the bus, for monitoring the presence of an operator on the turf maintenance system; (c) at least one secondary controller device, operatively connected to the bus, for controlling a process of the turf maintenance system; and (d) wherein the primary controller device includes: (i) transmission means for passing information between the primary and secondary controller devices over the bus; (ii) means for polling the secondary controllers to respond by transmitting an identification message over the bus to the primary controller; and (iii) means for determining if the secondary controllers respond.
Claim 20
Independent Claim
109 words
An apparatus for a turf maintenance system for implementing a controller area network, comprising: (a) an electrical bus; (b) a primary controller device, operatively connected to the bus, for controlling the cutting clip; (c) at least one secondary controller device, operatively connected to the bus, for controlling a process of the turf maintenance system; and (d) wherein the primary controller device includes: (i) transmission means for passing information between the primary and secondary controller devices over the bus; (ii) means for polling the secondary controllers to respond by transmitting an identification message over the bus to the primary controller; and (iii) means for determining if the secondary controllers respond.
Claim 21
Independent Claim
109 words
An apparatus for a turf maintenance system for implementing a controller area network, comprising: (a) an electrical bus; (b) a primary controller device, operatively connected to the bus, for controlling the cutting clip; (c) at least one secondary controller device, operatively connected to the bus, for controlling a process of the turf maintenance system; and (d) wherein the primary controller device includes: (i) transmission means for passing information between the primary and secondary controller devices over the bus; (ii) means for polling the secondary controllers to respond by transmitting an identification message over the bus to the primary controller; and (iii) means for determining if the secondary controllers respond.
Claim 22
Independent Claim
142 words
An apparatus for a turf maintenance system for implementing a controller area network, comprising: (a) an electrical bus; (b) a primary controller device, operatively connected to the bus, for monitoring a plurality of input parameters of the turf maintenance system, including the status of the transmission and the presence of an operator on the turf maintenance system, and wherein the primary controller controls the cutting clip; (c) at least one secondary controller device, operatively connected to the bus, for controlling a process of the turf maintenance system; and (d) wherein the primary controller device includes: (i) transmission means for passing information between the primary and secondary controller devices over the bus; (ii) means for polling the secondary controllers to respond by transmitting an identification message over the bus to the primary controller; and (iii) means for determining if the secondary controllers respond.
Claim 23
Independent Claim
142 words
An apparatus for a turf maintenance system for implementing a controller area network, comprising: (a) an electrical bus; (b) a primary controller device, operatively connected to the bus, for monitoring a plurality of input parameters of the turf maintenance system, including the status of the transmission and the presence of an operator on the turf maintenance system, and wherein the primary controller controls the cutting clip; (c) at least one secondary controller device, operatively connected to the bus, for controlling a process of the turf maintenance system; and (d) wherein the primary controller device includes: (i) transmission means for passing information between the primary and secondary controller devices over the bus; (ii) means for polling the secondary controllers to respond by transmitting an identification message over the bus to the primary controller; and (iii) means for determining if the secondary controllers respond.
Claim 24
Independent Claim
124 words
An apparatus for a turf maintenance system for implementing a controller area network, comprising: (a) an electrical bus; (b) a primary controller device, operatively connected to the bus, for controlling a first process of the turf maintenance system; (c) at least one secondary controller device, operatively connected to the bus, wherein at least one secondary controller device detects if a hydraulic fluid leak occurs on the turf maintenance system; and (d) wherein the primary controller device includes: (i) transmission means for passing information between the primary and secondary controller devices over the bus; (ii) means for polling the secondary controllers to respond by transmitting an identification message over the bus to the primary controller; and (iii) means for determining if the secondary controllers respond.
Claim 25
Independent Claim
124 words
An apparatus for a turf maintenance system for implementing a controller area network, comprising: (a) an electrical bus; (b) a primary controller device, operatively connected to the bus, for controlling a first process of the turf maintenance system; (c) at least one secondary controller device, operatively connected to the bus, wherein at least one secondary controller device detects if a hydraulic fluid leak occurs on the turf maintenance system; and (d) wherein the primary controller device includes: (i) transmission means for passing information between the primary and secondary controller devices over the bus; (ii) means for polling the secondary controllers to respond by transmitting an identification message over the bus to the primary controller; and (iii) means for determining if the secondary controllers respond.
References Cited (Backward Citations)
US1768446A
Cited
GB315568A
Cited
US1944584A
Cited
GB424031A
Cited
US2253260A
Cited
US2318066A
Cited
US2513309A
Cited
US2523014A
Cited
US2604522A
Cited
US2625042A
Cited
US2588002A
Cited
US2825895A
Cited
CH347458A
Cited
US2869309A
Cited
US3093946A
Cited
US3177638A
Cited
US3098574A
Cited
US3152478A
Cited
US3207244A
Cited
US3410063A
Cited
US3303785A
Cited
US3429110A
Cited
US3401764A
Cited
US3442070A
Cited
US3442068A
Cited
US3478688A
Cited
US3438247A
Cited
US3514929A
Cited
US3538745A
Cited
US3589109A
Cited
US3758967A
Cited
US3726070A
Cited
US3568705A
Cited
US3576959A
Cited
FR2075684A5
Cited
US3667605A
Cited
US3673587A
Cited
US3708245A
Cited
US3685531A
Cited
GB1375827A
Cited
US3742685A
Cited
US3816985A
Cited
US3854271A
Cited
FR2178669A5
Cited
US3968630A
Cited
US4057700A
Cited
US4020481A
Cited
US3973379A
Cited
US3999359A
Cited
US4161957A
Cited
US4152925A
Cited
US4090396A
Cited
US4274328A
Cited
GB2003723A
Cited
US4258421A
Cited
US4192124A
Cited
US4188722A
Cited
US4296409A
Cited
US4325894A
Cited
US4353245A
Cited
US4321590A
Cited
US4271402A
Cited
US4616328A
Cited
US4380243A
Cited
US4376298A
Cited
US4332127A
Cited
US4773265A
Cited
US4522167A
Cited
US4361835A
Cited
US4611620A
Cited
US4327544A
Cited
US4398186A
Cited
US4487002A
Cited
US4430846A
Cited
US4604893A
Cited
US4440017A
Cited
US4527241A
Cited
US4563674A
Cited
US4591837A
Cited
US4551801A
Cited
US4513774A
Cited
US4505148A
Cited
US4571987A
Cited
US4811601A
Cited
US4608638A
Cited
US4522109A
Cited
US4549429A
Cited
US4480610A
Cited
US4710757A
Cited
US4848150A
Cited
US5035141A
Cited
US4637254A
Cited
US4590462A
Cited
US4827762A
Cited
US5000044A
Cited
US4610165A
Cited
US4853856A
Cited
US4775855A
Cited
US4926331A
Cited
US4878338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-05-07 | 2004-11-06 | 2005-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-05-07 | 2008-11-06 | 2009-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-05-07 | 2012-11-06 | 2013-05-08 | $7700.00 | Window Closed / Lapsed |