US20070169383A1 - Method and apparatus to elevate the engine idle to allow battery charging during the operation of a snow plow or other accessory - Google Patents
Method and apparatus to elevate the engine idle to allow battery charging during the operation of a snow plow or other accessory Download PDFInfo
- Publication number
- US20070169383A1 US20070169383A1 US11/307,090 US30709006A US2007169383A1 US 20070169383 A1 US20070169383 A1 US 20070169383A1 US 30709006 A US30709006 A US 30709006A US 2007169383 A1 US2007169383 A1 US 2007169383A1
- Authority
- US
- United States
- Prior art keywords
- pin
- recited
- speed
- engine
- snow plow
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims description 17
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/08—Introducing corrections for particular operating conditions for idling
- F02D41/083—Introducing corrections for particular operating conditions for idling taking into account engine load variation, e.g. air-conditionning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
- F01P7/048—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using electrical drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
- F02D2200/503—Battery correction, i.e. corrections as a function of the state of the battery, its output or its type
Definitions
- the present invention relates generally to a control system, and more particularly to an engine control system that recognizes an accessory and boosts the idle speed of the engine to allow battery charging.
- snow plows are commonly attached to heavy duty vehicles.
- the snow plows are operated with hydraulic systems that draw power from the vehicle.
- Snow plows are often used at very low vehicle speeds. The low vehicle speeds correspond to a low engine rotation speed. If the speed of the engine is too low, the battery will not charge.
- the blade is typically manipulated in various positions at the low speed and may cause the battery to completely discharge.
- the present invention provides a vehicle system that includes an engine control module and an accessory coupled to the first pin and the second pin of an engine control module.
- the engine control module increases the idle speed of the engine in response to the first pin and second pin being high.
- a method of operating a vehicle comprises determining when a first pin and a second pin of an engine control module connector is coupled high by an accessory and increasing in idle speed in response to the first pin and second pin being high.
- One advantage of the invention is that the system operates when the vehicle is in a driving mode. That is, a parking mode is not required for elevated engine RPM within the calibratable limits.
- FIG. 1 is a block diagram of a vehicle having a control system according to the present invention.
- FIG. 2 is a flow chart illustrating a method for operating the invention.
- a vehicle 10 having an engine 12 that is coupled to an alternator 14 .
- the alternator 14 is coupled to battery 16 .
- battery 16 is illustrated as two different boxes, one battery is typically provided on a vehicle.
- alternator 14 spins and generates electricity.
- the alternator acts as a generator and generates power to charge the battery 16 .
- the engine 12 is coupled to a transmission 20 that has an output corresponding to the state of the vehicle.
- the transmission 20 may generate an output corresponding to a drive or driven mode. This is in contrast to other modes such as a reverse mode and a park mode.
- An engine control module (ECM) 26 is coupled to the engine 12 and controls the engine 12 according to various parameters of the vehicle.
- Engine control module 26 controls the engine idle speed.
- the engine control module 26 includes an engine control module connector 28 that may, for example, have a battery charge protect pin 30 and a powertrain takeoff pin 32 . Of course, various other pins may be used to couple information to or from the engine control module 26 .
- the engine control module 26 may also be coupled to a fan 33 and a parking brake 36 .
- the engine control module 26 may control the speed of the fan 33 and may also receive information regarding the activation or disconnection of the parking brake 36 .
- the battery charge protect (BCH) pin 30 and the power takeoff (PTO) pin 32 are referred to respectively as a first pin and a second pin.
- An accessory system 40 may be coupled to the first pin 30 and the second pin 32 through a connector 42 . Both pins 30 and 32 may be coupled to a run feed 44 and a snow plow switch 46 . When an accessory such as a snow plow 58 is desired to be operated, the snow plow switch 46 is closed and both pins or battery charge protect pin 30 and PTO pin 32 are connected to run feed 44 .
- the run feed 44 is energized with the battery 16 when the vehicle ignition is on. When the vehicle ignition is off, the run feed 44 is no longer activated.
- the accessory 40 may have a module such as a snow plow module 48 .
- the snow plow module may be coupled to snow plow switch 46 .
- the snow plow module 48 may be coupled to battery 16 through a switch 50 .
- the engine control module increases the idle speed of the engine. For example, the idle speed may be increased by about 200 rpm so that battery charging may be performed. The amount of increase depends on many conditions including the type of engine, the type or output of the alternator, and the amount of power required by the accessory.
- the speed of fan 33 may be changed to cool the engine when an accessory is provided.
- the fan speed 32 may be increased to allow further engine cooling.
- Engine cooling may also be increased in response to a parking brake 36 .
- the engine control module may increase the speed of fan 33 . This may be performed in conjunction with monitoring the pins 30 and 32 .
- high refers to a power on or battery voltage mode in this case. It should be noted that a high condition may be anything but a ground condition or disconnected condition. That is, both a high battery voltage or reverse battery voltage, or voltages less than the battery voltage, may be used to indicate a high condition.
- the snow plow module 48 is coupled to an actuator 56 which moves the snow plow blade 58 .
- the actuator 56 requires a significant amount of energy to move the blade 58 into various positions. Thus, when both of the pins 30 and 32 are high, the engine speed is increased so that the alternator spins at a sufficient speed to maintain a charge in the battery 16 .
- step 100 the pin status is checked along with the base idle and vehicle speed. All three conditions in step 100 may be checked or polled periodically by the engine control module 26 .
- step 102 when the two pins of interest are not high or vehicle speed is greater then zero or the idle speed is greater then base idle, the system returns to step 100 and rechecks the entry conditions.
- step 102 if the pins are high and vehicle speed is equal to zero and idle speed is equal to base idle, this indicates an accessory such as a snow plow is coupled to the vehicle and snow plow mode is enabled.
- step 104 if all three conditions are met, the engine idle speed is elevated by a predetermined amount. As mentioned above, the predetermined amount may be about 200 rpms. The amount may vary depending on the engine. What is important is that the engine idle speed is maintained at a level to allow the alternator to charge or maintain the battery charge level.
- an optional step of changing the fan speed may also be performed.
- the fan speed may be changed based on various conditions such as the mere fact that an accessory is coupled by monitoring the pin or by monitoring the status of other components such as the parking brake 36 , or the like. For example, when the power takeoff pin 32 is high and the brake is not set, the fan may be maintained at least at a minimum rpm or above. Changing the fan speed allows the engine to cool due to the increased heat generated at the higher speed since vehicle movement may not provide enough cooling.
Abstract
A vehicle 10 includes an accessory system 40 coupled to an engine control module 26. The accessory system 40 may, for example, be a snow plow. The accessory system 40 is coupled to a first pin 30 and a second pin 32 of the engine control module. When both of the pins are high, the idle speed of an engine 12 is raised so that the speed of the alternator 14 is raised so that a battery 16 may maintain a charging level on the battery.
Description
- The present invention relates generally to a control system, and more particularly to an engine control system that recognizes an accessory and boosts the idle speed of the engine to allow battery charging.
- Various accessories such as snow plows are commonly attached to heavy duty vehicles. In the case of snow plows, the snow plows are operated with hydraulic systems that draw power from the vehicle. Snow plows are often used at very low vehicle speeds. The low vehicle speeds correspond to a low engine rotation speed. If the speed of the engine is too low, the battery will not charge. During the operation of a snow plow the blade is typically manipulated in various positions at the low speed and may cause the battery to completely discharge.
- It would therefore be desirable to recognize the operation of an accessory and increase the engine speed to maintain the battery in a charging state.
- The present invention provides a vehicle system that includes an engine control module and an accessory coupled to the first pin and the second pin of an engine control module. The engine control module increases the idle speed of the engine in response to the first pin and second pin being high.
- In a further aspect of the invention, a method of operating a vehicle comprises determining when a first pin and a second pin of an engine control module connector is coupled high by an accessory and increasing in idle speed in response to the first pin and second pin being high.
- One advantage of the invention is that the system operates when the vehicle is in a driving mode. That is, a parking mode is not required for elevated engine RPM within the calibratable limits.
- Other advantages and features of the present invention will become apparent when viewed in light of the detailed description of the preferred embodiment when taken in conjunction with the attached drawings and appended claims.
-
FIG. 1 is a block diagram of a vehicle having a control system according to the present invention. -
FIG. 2 is a flow chart illustrating a method for operating the invention. - The following figures are described with respect to a snow plow accessory. However, those skilled in the art will recognize that various other accessories used during operation of the vehicle may be employed.
- Referring now to
FIG. 1 , avehicle 10 is illustrated having anengine 12 that is coupled to analternator 14. Thealternator 14 is coupled tobattery 16. Althoughbattery 16 is illustrated as two different boxes, one battery is typically provided on a vehicle. As theengine 12 rotates,alternator 14 spins and generates electricity. When the alternator is above a speed the alternator acts as a generator and generates power to charge thebattery 16. Theengine 12 is coupled to atransmission 20 that has an output corresponding to the state of the vehicle. For example, thetransmission 20 may generate an output corresponding to a drive or driven mode. This is in contrast to other modes such as a reverse mode and a park mode. - An engine control module (ECM) 26 is coupled to the
engine 12 and controls theengine 12 according to various parameters of the vehicle.Engine control module 26, for example, controls the engine idle speed. Theengine control module 26 includes an enginecontrol module connector 28 that may, for example, have a battery charge protectpin 30 and apowertrain takeoff pin 32. Of course, various other pins may be used to couple information to or from theengine control module 26. Theengine control module 26 may also be coupled to afan 33 and aparking brake 36. Theengine control module 26 may control the speed of thefan 33 and may also receive information regarding the activation or disconnection of theparking brake 36. - The battery charge protect (BCH)
pin 30 and the power takeoff (PTO)pin 32 are referred to respectively as a first pin and a second pin. Anaccessory system 40 may be coupled to thefirst pin 30 and thesecond pin 32 through aconnector 42. Bothpins run feed 44 and asnow plow switch 46. When an accessory such as asnow plow 58 is desired to be operated, thesnow plow switch 46 is closed and both pins or battery charge protectpin 30 andPTO pin 32 are connected to runfeed 44. Therun feed 44 is energized with thebattery 16 when the vehicle ignition is on. When the vehicle ignition is off, therun feed 44 is no longer activated. - The
accessory 40 may have a module such as asnow plow module 48. The snow plow module may be coupled tosnow plow switch 46. When it is desired that the snow plow be activated, thesnow plow module 48 may be coupled tobattery 16 through aswitch 50. When thefirst pin 30 and thesecond pin 32 receive a high indication, the engine control module increases the idle speed of the engine. For example, the idle speed may be increased by about 200 rpm so that battery charging may be performed. The amount of increase depends on many conditions including the type of engine, the type or output of the alternator, and the amount of power required by the accessory. In addition, the speed offan 33 may be changed to cool the engine when an accessory is provided. In one example, when both thefirst pin 30 and thesecond pin 32 are high, thefan speed 32 may be increased to allow further engine cooling. Engine cooling may also be increased in response to aparking brake 36. When theparking brake 36 generates a signal indicating the parking brake is off, the engine control module may increase the speed offan 33. This may be performed in conjunction with monitoring thepins - It should be noted that high refers to a power on or battery voltage mode in this case. It should be noted that a high condition may be anything but a ground condition or disconnected condition. That is, both a high battery voltage or reverse battery voltage, or voltages less than the battery voltage, may be used to indicate a high condition.
- The
snow plow module 48 is coupled to anactuator 56 which moves thesnow plow blade 58. Theactuator 56 requires a significant amount of energy to move theblade 58 into various positions. Thus, when both of thepins battery 16. - Referring now to
FIG. 2 , a method for operating the invention is illustrated. Instep 100, the pin status is checked along with the base idle and vehicle speed. All three conditions instep 100 may be checked or polled periodically by theengine control module 26. Instep 102, when the two pins of interest are not high or vehicle speed is greater then zero or the idle speed is greater then base idle, the system returns tostep 100 and rechecks the entry conditions. Instep 102, if the pins are high and vehicle speed is equal to zero and idle speed is equal to base idle, this indicates an accessory such as a snow plow is coupled to the vehicle and snow plow mode is enabled. Instep 104, if all three conditions are met, the engine idle speed is elevated by a predetermined amount. As mentioned above, the predetermined amount may be about 200 rpms. The amount may vary depending on the engine. What is important is that the engine idle speed is maintained at a level to allow the alternator to charge or maintain the battery charge level. - In
step 106, an optional step of changing the fan speed may also be performed. The fan speed may be changed based on various conditions such as the mere fact that an accessory is coupled by monitoring the pin or by monitoring the status of other components such as theparking brake 36, or the like. For example, when thepower takeoff pin 32 is high and the brake is not set, the fan may be maintained at least at a minimum rpm or above. Changing the fan speed allows the engine to cool due to the increased heat generated at the higher speed since vehicle movement may not provide enough cooling. - While particular embodiments of the invention have been shown and described, numerous variations and alternate embodiments will occur to those skilled in the art. Accordingly, it is intended that the invention be limited only in terms of the appended claims.
Claims (20)
1. A vehicle system comprising
an engine control module; and
an accessory coupled to a first pin and a second pin of the engine control module;
said engine control module increasing an idle speed in response to the first pin and the second pin being high.
2. A vehicle system as recited in claim 1 wherein said engine control module increasing an idle speed in response to the first pin and the second pin being high when the vehicle is in a drive mode.
3. A vehicle system as recited in claim 1 wherein the accessory is a snow plow module and a snow plow switch.
4. A vehicle system as recited in claim 1 wherein the snow plow switch is coupled to a run feed.
5. A vehicle system as recited in claim 1 wherein increasing an idle speed comprises increasing the idle speed by a predetermined speed.
6. A vehicle system as recited in claim 1 further comprising an engine fan having an engine fan speed, wherein said engine control module changes an engine fan speed when the first pin and the second pin are high.
7. A vehicle system as recited in claim 1 further comprising an engine fan having an engine fan speed, wherein said engine control module changes an engine fan speed when the first pin and the second pin are high and a parking brake is off.
8. A method of operating a vehicle system comprising:
determining when a first pin and a second pin of the engine control module connector is coupled high by an accessory; and increasing an idle speed in response to the first pin and the second pin being high.
9. A method as recited in claim 8 wherein the accessory comprises a snow plow.
10. A method as recited in claim 8 wherein the accessory comprises a snow plow module and a snow plow switch.
11. A method as recited in claim 10 wherein the snow plow switch is coupled to a run feed.
12. A method as recited in claim 8 wherein increasing an idle speed comprises increasing the idle speed by a predetermined speed.
13. A method as recited in claim 8 further comprising changing an engine fan speed when the first pin and the second pin are high.
14. A method as recited in claim 8 further comprising changing an engine fan speed when the first pin and the second pin are high and a parking brake is off.
15. A method of controlling a vehicle comprising: coupling a snow plow switch to a vehicle first pin and second pin; and when the first pin and the second pin are high, increasing the idle speed of the vehicle by a predetermined speed.
16. A method as recited in claim 15 wherein the first vehicle pin and the second vehicle pin are coupled to the engine control module.
17. A method as recited in claim 15 wherein the predetermined speed is about 200 rpms.
18. A method as recited in claim 15 further comprising changing an engine fan speed when the first pin and the second pin are high.
19. A method as recited in claim 15 further comprising changing an engine fan speed when the first pin and the second pin are high and a parking brake is off.
20. A method as recited in claim 15 wherein the snow plow switch is coupled to a run feed.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/307,090 US20070169383A1 (en) | 2006-01-23 | 2006-01-23 | Method and apparatus to elevate the engine idle to allow battery charging during the operation of a snow plow or other accessory |
CN200610139594XA CN101008356B (en) | 2006-01-23 | 2006-09-21 | Method and apparatus to elevate the engine idle to allow battery charging |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/307,090 US20070169383A1 (en) | 2006-01-23 | 2006-01-23 | Method and apparatus to elevate the engine idle to allow battery charging during the operation of a snow plow or other accessory |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070169383A1 true US20070169383A1 (en) | 2007-07-26 |
Family
ID=38284161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/307,090 Abandoned US20070169383A1 (en) | 2006-01-23 | 2006-01-23 | Method and apparatus to elevate the engine idle to allow battery charging during the operation of a snow plow or other accessory |
Country Status (2)
Country | Link |
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US (1) | US20070169383A1 (en) |
CN (1) | CN101008356B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105745130A (en) * | 2013-11-18 | 2016-07-06 | 标致雪铁龙集团 | Method for controlling an alternator combined with a motor vehicle combustion engine |
US10491147B2 (en) | 2017-11-29 | 2019-11-26 | Ford Global Technologies, Llc | Dual alternator vehicle power management |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8761977B2 (en) * | 2009-10-15 | 2014-06-24 | GM Global Technology Operations LLC | Method and apparatus for optimizing engine idle speed in a vehicle |
US20150105974A1 (en) * | 2013-10-16 | 2015-04-16 | Ford Global Technologies, Llc | Snow Plow Blade Detection and Compensation System |
US9897023B2 (en) * | 2015-11-06 | 2018-02-20 | Ford Global Technologies, Llc | System and method for operating a transmission power take off |
CN107264511B (en) * | 2017-07-10 | 2019-08-30 | 山东元齐新动力科技有限公司 | A kind of electricity-generating control method of hybrid electric vehicle, equipment and system |
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-
2006
- 2006-01-23 US US11/307,090 patent/US20070169383A1/en not_active Abandoned
- 2006-09-21 CN CN200610139594XA patent/CN101008356B/en not_active Expired - Fee Related
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US4615129A (en) * | 1985-12-12 | 1986-10-07 | Jackson Patrick H | Snow-disposal unit and method |
US4898333A (en) * | 1988-08-30 | 1990-02-06 | H.Y.O., Inc. | Hydraulic system for use with snow-ice removal vehicles |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105745130A (en) * | 2013-11-18 | 2016-07-06 | 标致雪铁龙集团 | Method for controlling an alternator combined with a motor vehicle combustion engine |
US10491147B2 (en) | 2017-11-29 | 2019-11-26 | Ford Global Technologies, Llc | Dual alternator vehicle power management |
Also Published As
Publication number | Publication date |
---|---|
CN101008356B (en) | 2011-03-02 |
CN101008356A (en) | 2007-08-01 |
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Owner name: FORD GLOBAL TECHNOLOGIES, LLC, MICHIGAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FORD MOTOR COMPANY;REEL/FRAME:017052/0507 Effective date: 20060123 Owner name: FORD MOTOR COMPANY, MICHIGAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MCDANIEL, JERRY;SHAH, ANIL;NADER, DAVID;REEL/FRAME:017049/0580 Effective date: 20060113 |
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