CN102410093A - Realization method of automatically increasing loading idle speed of engine of engineering vehicle and control system - Google Patents
Realization method of automatically increasing loading idle speed of engine of engineering vehicle and control system Download PDFInfo
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- CN102410093A CN102410093A CN2011103991604A CN201110399160A CN102410093A CN 102410093 A CN102410093 A CN 102410093A CN 2011103991604 A CN2011103991604 A CN 2011103991604A CN 201110399160 A CN201110399160 A CN 201110399160A CN 102410093 A CN102410093 A CN 102410093A
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- motor
- rotating speed
- idling
- controller
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Abstract
The invention relates to a realization method of automatically increasing a loading idle speed of an engine of an engineering vehicle and an idle speed control system of the engine. The method comprises the following steps: determining a first target rotating speed of the engine in a loading idle speed state, arranging an enabling key on an operating handle of the engineering vehicle, and arranging a controller which is connected with an ECU (Electronic Control Unit) of the engine, the operating handle and the enabling key, wherein the controller controls an electronic control fuel injection system to increase a rotating speed of the engine and keep the engine in the first target rotating speed according to the states of the operating handle and the enabling key when idle load is converted into loading. The control system comprises the electronic control fuel injection system, the controller, the operating handle of the engineering vehicle, two target rotating speed storage units and the enabling key arranged on the operating handle, wherein the controller is connected with the operating handle, the enabling key and the ECU (Electronic Control Unit) of the engine. According to the method and the system, the oil consumption and the carbon emission load of the engineering vehicle can be reduced, and the cost of the engine of the engineering vehicle can be reduced.
Description
Technical field
The present invention relates to the idle speed control of motor, particularly automatic raising engineering truck motor band carries the implementation method and the engine idling control system of idling.
Background technique
Along with global energy is nervous, climate warming, the needs of energy-saving and emission-reduction are more and more urgent.Because major works car stand-by period before operation is longer, before the crane gear lifting, prepare fishing tackle, hook etc., cause the unloaded idle time of motor longer.And existing engineering truck has only a kind of idling speed; The needs of engineer operation when satisfying idling; The fretting performance of embodiment device better; Motor type selecting coupling the time all leaves more power headroom, i.e. the peak output that all needs of the rated output power of motor greater than equipment, and the idling of motor is all set higherly relatively.Therefore, there is following technological deficiency in existing engineering truck: 1. fuel consumption is big, and carbon emission is big, not energy-conserving and environment-protective.2. the motor cost is higher relatively.
Chinese invention patent application CN101737184A discloses a kind of automobile engine starting and idling fuel cut-off operation control system and controlling method, and it is through a hybrid electric motor is set, after engine operation; The engine drives hybrid electric motor rotates, and hybrid electric motor is a charge in batteries as generator, when engine idling operation; Storage battery is supplied power to hybrid electric motor; Hybrid electric motor drags engine running as motor, and engine oil path cuts off, and misfires.When this method can make automobile wait signaling lamp at the parting of the ways and under other situation about need suspend, need not consume oil and motor is remained on idling mode, can reach and save fuel oil and the purpose that reduces discharging.But this control system and method are to utilize storage battery to keep idling mode; Because the storage battery charge capacity of fuel oil power car is less; The very little stock car of load when therefore this control system and method only are suitable for idling is for engineering truck, because the idling load is bigger; And the long idling of engineering truck needs, the electric weight of storage battery can't be kept its idling mode at all.
Summary of the invention
The present invention aims to provide implementation method and the control system that a kind of automatic raising engineering truck motor band carries idling, to reduce the fuel consumption and the carbon emission amount of engineering truck, reduces the cost of its motor.
The present invention improves the implementation method that engineering truck motor band carries idling automatically, comprising:
Confirm that motor carries first rotating speed of target of idling mode at band;
Operating grip at engineering truck is provided with enable key;
Controller is set, this controller is connected with enable key with the ECU (electronic control unit) and the said operating grip of motor;
Said controller is according to the state of said operating grip and enable key; Identification zero load and band carry the effective conversion between the operating mode; And then in zero load to band idling when changing; As the rotating speed control target, the control electric control fuel oil jet system is with the raising of the rotating speed of motor and maintain said first rotating speed of target with said first rotating speed of target for the ECU of control motor.
Preferably; Confirm first rotating speed of target of motor through following method at band year idling mode: the Maximum Torque that motor need be exported when at first calculating the maximum load operating mode, confirm said first rotating speed of target according to the moment of torsion-speed curves of the said Maximum Torque that calculates and this motor then.
Preferably, through formula Q
Emax=Q
e+ (Q
P1+ Q
P2+----+Q
Pn)/(i* η
1* η
2) motor need be exported when calculating the maximum load operating mode Maximum Torque Q
Emax, wherein, Q
eBe engine accessory power rating running required torque, Q
P1----Q
PnRequired torque during the oil hydraulic pump p1----pn overflow situation of working when being respectively the maximum load operating mode, i is the transfer case velocity ratio, η
1Be transfer case transmission efficiency, η
2Be the oil hydraulic pump transmission efficiency.
Preferably, said controller is the PLC of said engineering truck.
The present invention is used for the engine idling control system of engineering truck, comprises electric control fuel oil jet system, also comprises:
Controller;
The operating grip of engineering truck is connected with said controller, is used for operation information is transferred to controller, makes the controller identification of Engine be in unloaded state and still is with the state of carrying;
Enable key is arranged on the said operating grip and with said controller and is connected, and when enable key was pressed, the operation information that operating grip is transferred to controller just was considered to effective; With
Two rotating speed of target storage unit are respectively applied for and preset motor at first rotating speed of target of band year idling mode and second rotating speed of target of unloaded idling mode;
Said controller is connected with the ECU of motor, is used for controlling said ECU and selects the rotating speed control target from said first rotating speed of target and second rotating speed of target, carries out fuel Injection Control, and engine operation is in different rotating speed when making unloaded idling carry idling with band.
Preferably, said controller is the PLC of said engineering truck.
Preferably, said controller is PLC independently.
Preferably, said two rotating speed of target storage unit are arranged in the ECU of motor.
Preferably, said two rotating speed of target storage unit are arranged in said controller.
Preferably, comprise that also pin is stepped on the gas and/or CAN bus manual accelerator control, they are connected with the ECU of motor, are used at idling operation motor being realized stepless speed regulation.
The present invention is provided with two kinds of idling rotating speed of target; Utilize the operating grip of enable key, controller, engineering truck and the ECU of motor; The control motor turns round with high rotational speed when band carries idling automatically; And when unloaded idling automatically with lower rotation speed operation, thereby can be when guaranteeing the fretting performance of equipment, the friction loss of fuel consumption, carbon emission amount and motor when reducing unloaded idling.Simultaneously, band under the situation that satisfies the full-load operation of not stepping on the gas, can be selected the littler motor of rated power, thereby can reduce the cost of motor after carrying the idling raising.
Engine idling control system in the some embodiments of the invention is provided with enable key at operating grip; The signal that has only when enable key is pressed operating grip to be transferred to controller just is taken as useful signal; Can when realizing control automatically, effectively avoid bumping the wrong timing that operating grip causes because of mistake, safe in utilization, reliable.
After adopting method and the control system in the some embodiments of the invention, motor carries in the process of idle running in unloaded idling or band, steps on the gas and the bus throttle still can be realized stepless time adjustment to motor through pin.
Description of drawings
Fig. 1 is the formation schematic representation of the engine idling control system that is used for engineering truck in the some embodiments of the invention.
Fig. 2 is the moment of torsion-rotation speed relation figure of a kind of motor among some embodiments of invention.
Embodiment
For making those skilled in the art more be expressly understood the present invention, do more detailed explanation below in conjunction with accompanying drawing, but these explanations are not limited to protection scope of the present invention.
With reference to Fig. 1, the engine idling control system that is used for engineering truck in the some embodiments of the invention can comprise operating grip 3, enable key 4 and two rotating speed of target storage unit (not shown)s of electric control fuel oil jet system 1, controller 2, engineering truck.
The structure of electric control fuel oil jet system 1 is the common practise of engine art, and it is through the aperture of ECU 11 control air valves of motor and the fuel injection pulsewidth of oil sprayer, and control gets into the air quantity and the fuel injection quantity of motor, realizes the control to engine speed.When idling, ECU 11 gathers the rotating speeds of motors in real time, with the idling rotating speed of target of setting relatively after, the aperture and the fuel injection pulsewidth of oil sprayer of output SC sigmal control air valve realize closed loop control, and engine control is turned round at the rotating speed of target of setting.The present invention does not do improvement to the structure of engine electric control fuel oil spraying system yet, so locate no longer to specify.
Operating grip 3 is connected with controller 2, is used for operation information is transferred to controller 2, makes controller 2 identification of Engine be in unloaded state and still is with the state of carrying.
Two rotating speed of target storage unit are used to preset motor respectively and carry first rotating speed of target of idling mode and second rotating speed of target of unloaded idling mode at band.Storage unit among the ECU 11 of two rotating speed of target storage unit preferred engines, but be not limited to this, for example, also can adopt the storage unit in the said controller 2.
Controller 2 is preferably the PLC of engineering truck; Controller 2 is connected with the ECU 11 of motor; Be used for controlling ECU 11 and select the rotating speed control target from first rotating speed of target and second rotating speed of target, carry out fuel Injection Control, engine operation is in different rotating speed when making unloaded idling carry idling with band.Be appreciated that ground, controller 2 also can adopt an independently small PLC.
Some embodiments of the invention also provide a kind of automatic raising engineering truck motor band to carry the implementation method of idling, and this method comprises:
Confirm that motor carries first rotating speed of target of idling mode at band;
Operating grip 3 at engineering truck is provided with enable key 4;
Controller 2 is set, this controller 2 is connected with enable key 4 with the ECU 11 and the operating grip 3 of motor;
Said controller 2 is according to the state of said operating grip 3 and enable key 4; Identification zero load and band carry the effective conversion between the operating mode; And then in zero load to band idling when changing; As the rotating speed control target, control electric control fuel oil jet system 1 improves the rotating speed of motor and maintains said first rotating speed of target ECU 11 of control motor with first rotating speed of target.
In certain embodiments; Can confirm first rotating speed of target of motor through following method at band year idling mode: the Maximum Torque that motor need be exported when at first calculating the maximum load operating mode, confirm said first rotating speed of target according to the moment of torsion-speed curves of the said Maximum Torque that calculates and this motor then.Be illustrated in figure 2 as a kind of moment of torsion-rotation speed relation figure of motor, not flame-out for guaranteeing motor, the Maximum Torque Q that can export when band carries idling
IBeing slightly larger than the said Maximum Torque that calculates gets final product.
In certain embodiments, can pass through formula Q
Emax=Q
e+ (Q
P1+ Q
P2+----+Q
Pn)/(i* η
1* η
2) motor need be exported when calculating the maximum load operating mode Maximum Torque Q
Emax, wherein, Q
eBe engine accessory power rating (comprising generator, fan etc.) running required torque, Q
P1----Q
PnRequired torque during the oil hydraulic pump p1----pn overflow situation of working when being respectively the maximum load operating mode, i is the transfer case velocity ratio, η
1Be transfer case transmission efficiency, η
2Be the oil hydraulic pump transmission efficiency.
5 step on the gas for pin among Fig. 1; 6 is CAN bus manual accelerator control; After idling improved, it is 5 still effective with CAN bus manual accelerator control 6 that pin is stepped on the gas, promptly unloaded belt speed state and band carry idling mode still can through pin step on the gas 5 or 6 pairs of motors of CAN bus manual accelerator control carry out stepless time adjustment.
Be appreciated that ground, the technological scheme in the some embodiments of the invention can be used for various engineering trucks, like pedrail crane etc., can reach following technique effect at least:
1. energy-conserving and environment-protective
The unloaded idling of motor can be reduced to minimum, thereby reduces unloaded oil consumption and discharging when idle.
Select the less relatively motor of rated power for use, noise is just relatively more little during work, has more the feature of environmental protection.
2. cost reduces
The rated power of motor is more little, and price is low more; Simultaneously, each peripheral unit of motor also can a relatively little model.Therefore select rated power littler motor relatively for use, can reduce purchase cost.
The above only is a preferred implementation of the present invention, and protection scope of the present invention also not only is confined to the foregoing description, and all technological schemes that belongs under the thinking of the present invention all belong to protection scope of the present invention.Should be pointed out that for those skilled in the art in the some improvement and the retouching that do not break away under the principle of the invention prerequisite, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. one kind is improved the implementation method that engineering truck motor band carries idling automatically, it is characterized in that this method comprises:
Confirm that motor carries first rotating speed of target of idling mode at band;
Operating grip at engineering truck is provided with enable key;
Controller is set, this controller is connected with enable key with the ECU and the said operating grip of motor;
Said controller is according to the state of said operating grip and enable key; Identification zero load and band carry the effective conversion between the operating mode; And then in zero load to band idling when changing; As the rotating speed control target, the control electric control fuel oil jet system is with the raising of the rotating speed of motor and maintain said first rotating speed of target with said first rotating speed of target for the ECU of control motor.
2. automatic raising engineering truck motor band according to claim 1 carries the implementation method of idling; It is characterized in that; Confirm first rotating speed of target of motor through following method at band year idling mode: the Maximum Torque that motor need be exported when at first calculating the maximum load operating mode, confirm said first rotating speed of target according to the moment of torsion-speed curves of the said Maximum Torque that calculates and this motor then.
3. automatic raising engineering truck motor band according to claim 2 carries the implementation method of idling, it is characterized in that: through formula Q
Emax=Q
e+ (Q
P1+ Q
P2+----+Q
Pn)/(i* η
1* η
2) motor need be exported when calculating the maximum load operating mode Maximum Torque Q
Emax, wherein, Q
eBe engine accessory power rating running required torque, Q
P1----Q
PnRequired torque during the oil hydraulic pump p1----pn overflow situation of working when being respectively the maximum load operating mode, i is the transfer case velocity ratio, η
1Be transfer case transmission efficiency, η
2Be the oil hydraulic pump transmission efficiency.
4. automatic raising engineering truck motor band according to claim 1 carries the implementation method of idling, and it is characterized in that: said controller is the PLC of said engineering truck.
5. an engine idling control system that is used for engineering truck comprises electric control fuel oil jet system, it is characterized in that, also comprises:
Controller;
The operating grip of engineering truck is connected with said controller, is used for operation information is transferred to controller, makes the controller identification of Engine be in unloaded state and still is with the state of carrying;
Enable key is arranged on the said operating grip and with said controller and is connected, and when enable key was pressed, the operation information that operating grip is transferred to controller just was considered to effective; With
Two rotating speed of target storage unit are respectively applied for and preset motor at first rotating speed of target of band year idling mode and second rotating speed of target of unloaded idling mode;
Said controller is connected with the ECU of motor, is used for controlling said ECU and selects the rotating speed control target from said first rotating speed of target and second rotating speed of target, carries out fuel Injection Control, and engine operation is in different rotating speed when making unloaded idling carry idling with band.
6. engine idling control system according to claim 5 is characterized in that: said controller is the PLC of said engineering truck.
7. engine idling control system according to claim 5 is characterized in that: said controller is PLC independently.
8. engine idling control system according to claim 5 is characterized in that: said two rotating speed of target storage unit are arranged in the ECU of motor.
9. engine idling control system according to claim 5 is characterized in that: said two rotating speed of target storage unit are arranged in said controller.
10. engine idling control system according to claim 5 is characterized in that: comprise that also pin is stepped on the gas and/or CAN bus manual accelerator control, they are connected with the ECU of motor, are used at idling operation motor being realized stepless speed regulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110399160 CN102410093B (en) | 2011-12-05 | 2011-12-05 | Realization method of automatically increasing loading idle speed of engine of engineering vehicle and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110399160 CN102410093B (en) | 2011-12-05 | 2011-12-05 | Realization method of automatically increasing loading idle speed of engine of engineering vehicle and control system |
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|---|---|
| CN102410093A true CN102410093A (en) | 2012-04-11 |
| CN102410093B CN102410093B (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110399160 Active CN102410093B (en) | 2011-12-05 | 2011-12-05 | Realization method of automatically increasing loading idle speed of engine of engineering vehicle and control system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103883404A (en) * | 2012-12-20 | 2014-06-25 | 北汽福田汽车股份有限公司 | Vehicle fuel-saving system and vehicle fuel-saving method |
| CN104088710A (en) * | 2014-07-10 | 2014-10-08 | 三一汽车起重机械有限公司 | Engineering vehicle and engine rotating speed control system and method thereof |
| CN107215289A (en) * | 2016-03-22 | 2017-09-29 | 迪尔公司 | The system and method determined for idle condition |
| CN111422061A (en) * | 2018-03-01 | 2020-07-17 | 淄博职业学院 | Engine rotating speed control method |
| CN113859215A (en) * | 2021-10-25 | 2021-12-31 | 徐州重型机械有限公司 | Power system rotation speed control method, controller, vehicle and readable storage medium |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883404A (en) * | 2012-12-20 | 2014-06-25 | 北汽福田汽车股份有限公司 | Vehicle fuel-saving system and vehicle fuel-saving method |
| CN104088710A (en) * | 2014-07-10 | 2014-10-08 | 三一汽车起重机械有限公司 | Engineering vehicle and engine rotating speed control system and method thereof |
| CN104088710B (en) * | 2014-07-10 | 2017-06-30 | 三一汽车起重机械有限公司 | Engineering truck and its engine revolution speed control system and method |
| CN107215289A (en) * | 2016-03-22 | 2017-09-29 | 迪尔公司 | The system and method determined for idle condition |
| CN111422061A (en) * | 2018-03-01 | 2020-07-17 | 淄博职业学院 | Engine rotating speed control method |
| CN111422061B (en) * | 2018-03-01 | 2021-07-30 | 国网山东省电力公司武城县供电公司 | Engine rotating speed control method |
| CN113859215A (en) * | 2021-10-25 | 2021-12-31 | 徐州重型机械有限公司 | Power system rotation speed control method, controller, vehicle and readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102410093B (en) | 2013-03-27 |
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