USRE34285E - Automatic trim system - Google Patents
Automatic trim system Download PDFInfo
- Publication number
- USRE34285E USRE34285E US07/452,559 US45255989A USRE34285E US RE34285 E USRE34285 E US RE34285E US 45255989 A US45255989 A US 45255989A US RE34285 E USRE34285 E US RE34285E
- Authority
- US
- United States
- Prior art keywords
- trim
- boat
- speed
- drive unit
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
- B63H20/08—Means enabling movement of the position of the propulsion element, e.g. for trim, tilt or steering; Control of trim or tilt
- B63H20/10—Means enabling trim or tilt, or lifting of the propulsion element when an obstruction is hit; Control of trim or tilt
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Control Of Velocity Or Acceleration (AREA)
Abstract
Description
Claims (8)
- such operation..]. 5. A control for adjusting the trim of a marine drive unit, said control comprising a drive unit adapted to be adjustably mounted on a boat for adjustment of the drive unit thrust angle relative to the boat, trim drive means for adjusting said drive unit relative to the boat, boat speed responsive means providing an output signal indicative of boat speed, control means operative to control said trim drive means and connected to receive said output signal, said control means being operative to read boat speed and to compare the latest speed reading with the prior reading to determine whether boat speed is increasing, said control means being operative to cause said trim drive means to move said drive unit in one direction so long as the adjustment results in increasing speed and to then cause said trim drive means to adjust said drive unit in the opposite direction so long as the adjustment results in increasing speed, said control means being operative to hunt for optimum adjustment by adjusting said drive unit in both directions to maximize boat speed, said control means being operative to stop adjusting
- said drive unit when boat speed has been maximized. 6. A control according to claim 5 and further including means to activate said control means, said control means being operative to delay hunting for maximum boat speed until boat speed is constant following activation of said control means.
- A control according to claim 5 in which there is a time delay following each adjustment of said drive unit before present boat speed is determined
- for comparison with the prior speed reading. 8. A control for adjusting the trim of a marine drive unit, said control comprising a drive unit driven by an engine and adapted to be adjustably mounted on the boat for movement in and out to adjust the thrust angle relative to the boat, trim drive means for adjusting said drive unit relative to the boat to adjust the trim of the boat, boat speed responsive means providing output signals indicative of boat speed, a microprocessor connected to receive said signals and operative to determine boat speed at intervals and to control said trim drive means, said microprocessor being programmed to hunt for optimum speed for the prevailing throttle setting by controlling said drive means to repeatedly move said drive unit in one direction in increments so long as each such movement results in a speed increase and to then move said drive unit in the opposite direction in increments so long as each such increment results in a speed increase, said microprocessor terminating operation of said drive means after hunting through a plurality of sequences of movement in one direction and in the
- opposite direction. 9. Apparatus for trimming a drive unit on a boat, said apparatus comprising means for sensing the speed of the boat, means for changing the trim of the drive unit, activating means, and control means operably connected to said speed sensing means and operable in response to activation by said activating means to cause operation of said trim changing means to seek increased boat speed by monitoring the effect on
- boat speed caused by changes in the trim of the drive unit. .Iadd.10. A control according to claim 5 wherein said control means causes said trim drive means to adjust said drive unit in said opposite direction even if boat speed remains constant after operation of said trim drive means to move said drive unit in said one direction. .Iaddend. .Iadd.11. A control according to claim 5 wherein said control means causes operation of said trim drive means to change the trim for X seconds, stops operation of said trim drive means, delays for Y seconds, and then determines whether boat speed is greater than before operation of said trim drive means. .Iaddend. .Iadd.12. A control according to claim 5 wherein said control means changes the direction of operation of said trim drive means Z times and then waits for operator reactivation, regardless of changes in boat speed, before again causing operation of said trim drive means. .Iaddend. .Iadd.13. A control according to claim 5 wherein said control means is operative, after actuation thereof, to prevent operation of said trim
- drive means until boat speed is constant. .Iaddend. .Iadd.14. A control according to claim 8 wherein said microprocessor causes operation of said trim drive means to change the trim in one direction until sensing the absence of boat speed increase and then causes operation of said trim drive means to change the trim in the opposite direction even if boat speed remains constant after operation of said trim drive means to change the trim in said one direction. .Iaddend. .Iadd.15. A control according to claim 8 wherein said microprocessor causes operation of said trim drive means to change the trim for X seconds, stops operation of said trim drive means, delays for Y seconds, and then determines whether boat speed is greater than before operation of said trim drive means. .Iaddend. .Iadd.16. A control according to claim 8 wherein said microprocessor causes operation of said trim drive means in one direction, then changes the direction of operation of said trim drive means Z times, and then waits for operator reactivation, regardless of changes in boat speed, before again causing operation of said trim drive means. .Iaddend. .Iadd.17. A control according to claim 8 wherein said microprocessor is operative, after actuation thereof, to prevent operation to said trim
- drive means until boat speed is constant. .Iaddend. .Iadd.18. Apparatus according to claim 9 wherein said control means causes operation of said trim changing means to change the trim in one direction until said sensing means senses the absence of boat speed increase and then causes operation of said trim changing means to change the trim in the opposite direction even if boat speed remains constant after operation of said trim changing means to change the trim in said one direction. .Iaddend. .Iadd.19. Apparatus according to claim 9 wherein said control means causes operation of said trim changing means to change the trim for X seconds, stops operation of said trim changing means, delays for Y seconds, and then determines whether boat speed is greater than before operation of said trim changing means. .Iaddend. .Iadd.20. Apparatus according to claim 9 wherein said control means causes operation of said trim changing means in one direction, then changes the direction of operation of said trim changing means Z times, and then waits for operator reactivation, regardless of changes in boat speed, before again causing operation of said trim changing means. .Iaddend. .Iadd.21. Apparatus according to claim 9 wherein said control means is operative, after actuation thereof, to prevent operation of said trim changing means until boat speed is constant. .Iaddend.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/452,559 USRE34285E (en) | 1989-12-18 | 1989-12-18 | Automatic trim system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/452,559 USRE34285E (en) | 1989-12-18 | 1989-12-18 | Automatic trim system |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/773,591 Reissue US4718872A (en) | 1985-09-09 | 1985-09-09 | Automatic trim system |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE34285E true USRE34285E (en) | 1993-06-15 |
Family
ID=23796954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/452,559 Expired - Lifetime USRE34285E (en) | 1989-12-18 | 1989-12-18 | Automatic trim system |
Country Status (1)
Country | Link |
---|---|
US (1) | USRE34285E (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5474013A (en) * | 1993-03-05 | 1995-12-12 | Trim Master Marine, Inc. | Trim tab auto-retract and multiple switching device |
US20070093149A1 (en) * | 2005-10-07 | 2007-04-26 | Lajos Csoke | Automatic system for adjusting the trim of a motor boat |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3314391A (en) * | 1964-03-17 | 1967-04-18 | Grenobloise Etude Appl | Methods and means for effecting optimum propulsion operating conditions in a jet propelled ship |
US3468282A (en) * | 1967-10-09 | 1969-09-23 | Andrew F Wintercorn | Continuous operation motor tilt control mechanism |
US3834345A (en) * | 1973-02-05 | 1974-09-10 | Brunswick Corp | Marine drive setting apparatus |
US3894250A (en) * | 1973-02-05 | 1975-07-08 | Brunswick Corp | Hall cell position sensor for outboard drive apparatus |
US4051801A (en) * | 1976-06-23 | 1977-10-04 | Brunswick Corporation | Drive position signalling apparatus |
US4058711A (en) * | 1976-04-16 | 1977-11-15 | Cincinnati Milacron Inc. | Asynchronous dual function multiprocessor machine control |
US4318699A (en) * | 1979-12-14 | 1982-03-09 | Brunswick Corporation | Trim control |
US4349868A (en) * | 1980-06-23 | 1982-09-14 | Hewlett-Packard Company | Sampled control loop with dynamic gain optimization |
US4494183A (en) * | 1982-06-17 | 1985-01-15 | Honeywell Inc. | Process variable transmitter having a non-interacting operating range adjustment |
US4565528A (en) * | 1983-03-19 | 1986-01-21 | Sanshin Kogyo Kabushiki Kaisha | Tilting mechanism for marine propulsion device |
-
1989
- 1989-12-18 US US07/452,559 patent/USRE34285E/en not_active Expired - Lifetime
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3314391A (en) * | 1964-03-17 | 1967-04-18 | Grenobloise Etude Appl | Methods and means for effecting optimum propulsion operating conditions in a jet propelled ship |
US3468282A (en) * | 1967-10-09 | 1969-09-23 | Andrew F Wintercorn | Continuous operation motor tilt control mechanism |
US3834345A (en) * | 1973-02-05 | 1974-09-10 | Brunswick Corp | Marine drive setting apparatus |
US3894250A (en) * | 1973-02-05 | 1975-07-08 | Brunswick Corp | Hall cell position sensor for outboard drive apparatus |
US4058711A (en) * | 1976-04-16 | 1977-11-15 | Cincinnati Milacron Inc. | Asynchronous dual function multiprocessor machine control |
US4051801A (en) * | 1976-06-23 | 1977-10-04 | Brunswick Corporation | Drive position signalling apparatus |
US4318699A (en) * | 1979-12-14 | 1982-03-09 | Brunswick Corporation | Trim control |
US4349868A (en) * | 1980-06-23 | 1982-09-14 | Hewlett-Packard Company | Sampled control loop with dynamic gain optimization |
US4494183A (en) * | 1982-06-17 | 1985-01-15 | Honeywell Inc. | Process variable transmitter having a non-interacting operating range adjustment |
US4565528A (en) * | 1983-03-19 | 1986-01-21 | Sanshin Kogyo Kabushiki Kaisha | Tilting mechanism for marine propulsion device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5474013A (en) * | 1993-03-05 | 1995-12-12 | Trim Master Marine, Inc. | Trim tab auto-retract and multiple switching device |
US20070093149A1 (en) * | 2005-10-07 | 2007-04-26 | Lajos Csoke | Automatic system for adjusting the trim of a motor boat |
US7311570B2 (en) * | 2005-10-07 | 2007-12-25 | Lajos Csoke | Automatic system for adjusting the trim of a motor boat |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FPAY | Fee payment |
Year of fee payment: 8 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 12 |
|
AS | Assignment |
Owner name: BOMBARDIER MOTOR CORPORATION OF AMERICA, FLORIDA Free format text: NUNC PRO TUNC ASSIGNMENT;ASSIGNOR:OUTBOARD MARINE CORPORATION;REEL/FRAME:014196/0743 Effective date: 20031211 |
|
AS | Assignment |
Owner name: BOMBARDIER RECREATIONAL PRODUCTS INC., CANADA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BOMBARDIER MOTOR CORPORATION OF AMERICA;REEL/FRAME:014653/0729 Effective date: 20031218 |
|
AS | Assignment |
Owner name: BANK OF MONTREAL, CANADA Free format text: SECURITY INTEREST;ASSIGNOR:BOMBARDIER RECREATIONAL PRODUCTS INC.;REEL/FRAME:014556/0334 Effective date: 20040130 |
|
AS | Assignment |
Owner name: BRP US INC., WISCONSIN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BOMBARDIER RECREATIONAL PRODUCTS INC.;REEL/FRAME:016059/0808 Effective date: 20050131 |
|
AS | Assignment |
Owner name: BANK OF MONTREAL, AS ADMINISTRATIVE AGENT, CANADA Free format text: SECURITY AGREEMENT;ASSIGNOR:BRP US INC.;REEL/FRAME:018350/0269 Effective date: 20060628 |