CN107489569B - A kind of method, oil pump and engine reducing oil pump noise - Google Patents
A kind of method, oil pump and engine reducing oil pump noise Download PDFInfo
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- CN107489569B CN107489569B CN201611051276.8A CN201611051276A CN107489569B CN 107489569 B CN107489569 B CN 107489569B CN 201611051276 A CN201611051276 A CN 201611051276A CN 107489569 B CN107489569 B CN 107489569B
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- current
- electromagnetism needle
- oil pump
- needle
- electromagnetism
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and return system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/001—Noise damping
Abstract
The invention discloses a kind of methods for reducing oil pump noise, comprising: obtains the power-off signal of the electromagnetic valve coil of oil pump, and is delayed after preset time, applies the additional force for slowing down electromagnetism needle to valve seat movement speed to the electromagnetism needle of oil pump.After the preset time of electromagnetic valve coil power-off, apply the additional force for slowing down electromagnetism needle movement speed to needle, the speed that electromagnetism needle can be made to take a seat reduces, and to reduce the shock dynamics of electromagnetism needle and valve seat, reduces the two and hits a possibility that causing vibration.On the one hand, by reducing shock, reducing and vibrate, to improve the stability of oil pump, reduce the noise of oil pump, improve the NVH performance of vehicle；On the other hand, the movement speed of electromagnetism needle reduces, and avoids the high-speed impact of electromagnetism needle and valve seat, extends the service life of electromagnetism needle, saves the material of equipment production.The invention also discloses a kind of oil pumps for realizing the above method and a kind of engine including the oil pump.
Description
Technical field
The present invention relates to technical field of engines, more specifically to a kind of method for reducing oil pump noise.In addition,
The invention further relates to a kind of oil pump and with the engine of the oil pump.
Background technique
Automobile is used as the current main vehicles, and environmental pollution caused by noise is also got worse.Engine conduct
The heart of automobile, noise also occupy the overwhelming majority, therefore automobile engine noise is controlled and improved seem especially
It is important.
Oil pump is one of the important spare part in engine.For oil pump open in usual, under solenoid valve off-position, due to
Spring is in free state, and electromagnetism needle keeps oil inlet to open；Under solenoid valves state, electromagnetic valve coil generates magnetic force
Suction is applied to electromagnetism needle by armature, so that spring is compressed, so that oil inlet is closed.Terminate in pump oil stroke
When, solenoid valve powers off suddenly, and electromagnetism needle generates rebound due to being acted on by spring force.
In the mechanism of above-mentioned oil pump, it will usually generate biggish noise, be influenced on the NVH performance of entire engine
It is larger, and will affect the service life of oil pump simultaneously.
It is that current those skilled in the art urgently solve in conclusion how to provide the method that a kind of pair of oil pump carries out noise reduction
Certainly the problem of.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of method for reducing oil pump noise, this method can effectively drop
Vibration noise in low oil pump.
It is a further object of the present invention to provide a kind of oil pump, which can greatly reduce its internal noise, avoid shaking
Dynamic or noise bring influences.Furthermore it is a further object of the present invention to provide a kind of engines including above-mentioned oil pump.
To achieve the goals above, the invention provides the following technical scheme:
A method of reducing oil pump noise, comprising: obtain the power-off signal of the electromagnetic valve coil of oil pump, and it is default to be delayed
After time, apply the additional force for slowing down the electromagnetism needle to valve seat movement speed to the electromagnetism needle of oil pump.
Preferably, described to apply to the electromagnetism needle of oil pump for slowing down the electromagnetism needle to the attached of valve seat movement speed
The step of reinforcing, comprising:
It controls the electromagnetic valve coil and is passed through predetermined amount additional drive current, to realize that the electromagnetism needle slows down to described
The mobile speed of valve seat.
Preferably, after getting the electromagnetic valve coil power-off signal, the current shape of the electromagnetism needle component is detected
State, and the predetermined time of this noise reduction process is obtained according to the current state of the electromagnetism needle component；
Wherein, the current state of the electromagnetism needle component include the electromagnetism needle current kinetic speed and/or with
The current elastic expansion range of the elastic component of the electromagnetism needle connection.
Preferably, the control electromagnetic valve coil is passed through predetermined amount additional drive current, to realize the solenoid valve
Needle slowed down before the step of to the valve seat mobile speed, further includes:
After the preset time, the current state of electromagnetism needle component is detected, according to working as the electromagnetism needle component
Preceding state obtains the size of the predetermined amount additional drive current；Wherein, the current state of the electromagnetism needle component include with
Elastic component, the current elastic expansion range after the preset time of the electromagnetism needle connection.
Preferably, the control electromagnetic valve coil is passed through predetermined amount additional drive current, to realize the solenoid valve
Needle slowed down after the step of to the valve seat mobile speed, further includes:
Detect the noise level in the vibratory output or the detection oil pump of the electromagnetism needle；
The vibratory output or the noise level are compared with standard value, adjust the preset time length and/
Or the current value of the predetermined amount additional drive current；
Wherein, when the vibratory output or the noise level exceed preset specified amount, when adjustment shortens described default
Between and/or adjustment increase the current value of the predetermined amount additional drive current.
Preferably, the control electromagnetic valve coil is passed through predetermined amount additional drive current, to realize the solenoid valve
Needle slowed down after the step of to the valve seat mobile speed, further includes:
The oil inlet of the oil pump or the current oil pressure of oil outlet are detected, judges whether the current oil pressure is stable, if institute
It is unstable to state current oil pressure, then increases the preset time.
Preferably, the control electromagnetic valve coil is passed through predetermined amount additional drive current, to realize the solenoid valve
Needle slowed down after the step of to the valve seat mobile speed, further includes:
Judge whether beat when the electromagnetism needle is taken a seat；If it has, then adjustment reduces the predetermined amount additional drives electricity
The current value of stream.
A kind of oil pump, including electromagnetism needle and electromagnetic valve coil, further include controller, and the controller is described for obtaining
The power-off signal of electromagnetic valve coil, and be delayed after preset time, Xiang Suoshu electromagnetism needle applies for slowing down the electromagnetism needle
To the additional force of valve seat movement speed.
Preferably, the controller is current controller, and the current controller is used for get electromagnetic valve coil disconnected
Electric signal, and be delayed after the preset time, it controls the electromagnetic valve coil and is passed through predetermined amount additional drive current, to realize
It states electromagnetism needle and slows down the speed mobile to the valve seat.
Preferably, the controller includes:
For detecting the speed sensor of the electromagnetism needle current kinetic speed, connecting for detecting the electromagnetism needle
The detection device of the current elastic expansion range of the elastic component connect；
Time for obtaining the predetermined time according to the current kinetic speed, the current elastic expansion range prejudges
Device；
It is attached for obtaining the predetermined amount according to the current elastic expansion range of the elastic component after the preset time
The current value of the current value of driving current is added to prejudge device.
Preferably, the controller further include: noise-monitoring equipment, the oil pressure for detecting oil inlet or oil outlet are stablized
The oil pressure detection devices of situation, for judging that the electromagnetism needle is taken a seat when the vibration monitor whether beated；
The noise-monitoring equipment, oil pressure detection devices and vibration monitor respectively with time anticipation device, described
Current value prejudges device connection.
A kind of engine, including oil pump, the oil pump are oil pump described in any of the above embodiments.
In the solution of the present invention, after the preset time of electromagnetic valve coil power-off, slows down electromagnetism needle to needle application and move
The additional force of dynamic speed, the speed that electromagnetism needle can be made to take a seat reduces, to reduce the impact force of electromagnetism needle and valve seat
Degree reduces the two and hits a possibility that causing vibration.On the one hand, by reducing shock, reducing and vibrate, to improve oil pump
Stability reduces the noise of oil pump, improves the NVH performance of vehicle；On the other hand, the movement speed of electromagnetism needle reduces,
The high-speed impact for avoiding electromagnetism needle and valve seat extends the service life of electromagnetism needle, saves the material of equipment production,
Compared with prior art, the Structural strength calls of device are reduced.
The present invention also provides a kind of oil pumps for realizing the above method and a kind of engine including the oil pump.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the flow chart of the specific embodiment one of the method provided by the present invention for reducing oil pump noise.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Core of the invention is to provide a kind of method for reducing oil pump noise, and this method can effectively reduce in oil pump
Vibration noise.
Another core of the invention is to provide a kind of oil pump, which can greatly reduce its internal noise, avoids shaking
Dynamic or noise bring influences.Furthermore another core of the invention is to provide a kind of engine including above-mentioned oil pump.
Referring to FIG. 1, Fig. 1 is the process of the specific embodiment one of the method provided by the present invention for reducing oil pump noise
Figure.
The present invention provides a kind of methods for reducing oil pump noise, it may also be said to be a kind of control method of oil pump, be used for
Reduce noise caused by oil pump.The above method includes:
The power-off signal of the electromagnetic valve coil of oil pump is obtained, and is delayed after preset time, is applied to the electromagnetism needle of oil pump
Additional force for slowing down from electromagnetism needle to valve seat movement speed.
It should be noted that above-mentioned electromagnetism needle is that the electromagnetism needle of oil inlet is arranged in, electromagnetism needle and elastic component connect
It connects, and can be moved by electromagnetic coil magneticaction.When elastic component in a free state, electromagnetism needle makes oil inlet
It is kept open；Under solenoid valves state, electromagnetic valve coil generates magnetic force, and is applied by armature to electromagnetism needle and inhaled
Power, so that elastic component is compressed, so that oil inlet is closed.At the end of pump oil stroke, solenoid valve powers off suddenly, solenoid valve
Needle no longer controlled by solenoid valve, only by elastic component elastic-restoring force act on generate rebound.When the power-off for getting electromagnetic valve coil
After signal, the delay of preset time is carried out, applies the additional force for preventing it mobile to valve seat, to above-mentioned electromagnetism needle then with reality
Now slow down purpose of the electromagnetism needle to valve seat movement speed.The effect of additional force is to slow down the movement speed of electromagnetism needle, not
It needs to make needle counter motion.That is, the purpose of additional force is to slow down the movement speed of needle, so the force of additional force
The size of duration and power can be constant, be also possible to variable, which can be adjusted as the case may be.
In scheme provided by the present invention, after the preset time of electromagnetic valve coil power-off, slow down electromagnetism to needle application
The additional force of needle movement speed, speed that electromagnetism needle can be made to take a seat reduce, to reduce electromagnetism needle and valve seat
Shock dynamics reduces the two and hits a possibility that causing vibration.On the one hand, by reducing shock, reducing and vibrate, to improve
The stability of oil pump reduces the noise of oil pump, improves the NVH performance of vehicle；On the other hand, the movement speed of electromagnetism needle
It reduces, avoids the high-speed impact of electromagnetism needle and valve seat, extend the service life of electromagnetism needle, save equipment production
Material compared with prior art reduces the Structural strength calls of device.
Optionally, above-mentioned additional when electromagnetism needle is connect with elastic component, is sprung back under elastic-restoring force effect to valve seat
Power can be the power contrary with elastic-restoring force, or the power with above-mentioned opposite direction component.If electromagnetism needle be
It is sprung back under the active force of other component, then the direction of additional force is opposite with the force direction.
On the basis of above-described embodiment, wherein apply to the electromagnetism needle of oil pump for slowing down electromagnetism needle to valve
It the step of additional force of seat movement speed, can specifically include:
Control electromagnetic valve coil is passed through predetermined amount additional drive current, to realize that electromagnetism needle slows down the speed mobile to valve seat
Degree.
That is, the above method includes:
Step S1: obtaining the power-off signal of the electromagnetic valve coil of oil pump, and the preset time that is delayed；
Step S2: control electromagnetic valve coil is passed through predetermined amount additional drive current, to realize that electromagnetism needle slows down to valve seat
Mobile speed.
It should be noted that since the normal use process of electromagnetism needle is exactly to control electromagnetism by the electromagnetic force of solenoid valve
The movement of needle is passed through a certain amount of additional again so it is normal use that electromagnetic valve coil, which is powered, to the electromagnetic valve coil after power-off
Driving current, can apply additional force to electromagnetism needle, the direction of additional force and elastic-restoring force it is contrary, enable to
Electromagnetism needle is to the translational acceleration of valve seat becomes smaller, speed slows down.Wherein, predetermined amount extra current is and is capable of forming to electromagnetism
The magnetic induction force of needle, and magnetic induction force enables to electromagnetism needle to slow down to valve seat movement.
The electromagnetic valve coil of normal operating conditions and control in oil pump can be directly used in scheme provided by the present embodiment
Device avoids increasing other devices, under the premise of not improving the cost of oil pump, realizes the protection to electromagnetism needle, avoids
The generation of the noise of oil pump.
Optionally, in addition to using above-mentioned original electromagnetic valve coil, ancillary coil can also be set inside oil pump, specially
Door is for slowing down the movement speed of electromagnetism needle in electromagnetism needle backhaul.Ancillary coil is connect with solenoid valve controller, is passed through
The operation of solenoid valve controller, which is realized, to be powered.
It optionally, can also be by other means to solenoid valve except operation of the above-mentioned step mode to electromagnetism needle is used
Needle applies additional force, such as the magnetic means etc. for passing through controllable direction.
On the basis of any one above-mentioned embodiment, after getting electromagnetic valve coil power-off signal, electromagnetism is detected
The current state of needle component, and the predetermined time of this noise reduction process is obtained according to the current state of electromagnetism needle component.
Wherein, the current state of electromagnetism needle component includes the current kinetic speed and/or and electromagnetism needle of electromagnetism needle
The current elastic expansion range of the elastic component of connection.
It should be noted that above-mentioned current state can also include that other are able to reflect electromagnetism needle mechanical property and movement
The evaluation information of state.Since at the end of pump oil stroke each time, there may be differences for the state of electromagnetism needle, so how to apply
Add additional force, how electromagnetism needle controlled, should quantitatively be determined by current state.
After electromagnetic valve coil power-off, electromagnetism needle will be acted on by elastic component and be sprung back.
Speed that the influence factor at the application moment of additional drive current includes the mechanical property of high-pressure pump itself and needle-valve is taken a seat
Degree, if the predetermined time is too short, i.e. application electric current is too early, will lead to oil pressure cntrol shakiness；If the predetermined time is too long, that is, apply
Evening will lead to noise reduction effect decrease, so must set in conjunction with high-pressure pump mechanical property itself and engine high pressure oil circuit pressure
Situations such as meter.The current elastic expansion range of the present speed and elastic component of electromagnetism needle is the influence of subsequent springback process at this time
Amount.So obtaining the pre- of this noise reduction process according to the current elastic expansion range of the present speed of electromagnetism needle and/or elastic component
It is accurate for fixing time.
To check that current state optionally can also pass through the side of preset standard value as adjustment foundation in the above method
Formula is adjusted.The size of predetermined time and additional drive current can be by demarcating to obtain in advance.When calibration early period,
A table can be set, according to characteristic of the needle-valve under different operating conditions, calibrate a preset time table and predetermined current
Table, and be stored in above controller.
On the basis of any one above-mentioned embodiment, control electromagnetic valve coil is passed through predetermined amount additional drive current,
Before realizing the step of electromagnetism needle slows down to valve seat mobile speed, it can also specifically include:
After preset time, the current state of electromagnetism needle component is detected, is obtained according to the current state of electromagnetism needle component
To the size of predetermined amount additional drive current.Wherein, the current state of electromagnetism needle component includes the bullet connecting with electromagnetism needle
Property part, the current elastic expansion range after preset time.
It should be noted that the influence factor of the size of additional drive current includes the mechanical property and bullet of high-pressure pump itself
The damping of spring is strong, if electric current is excessive, will lead to the process bounce of taking a seat of needle-valve；If electric current is too small, noise reduction effect will lead to
Situations such as weakening, needing the mechanical property itself and high pressure oil pressure in conjunction with high-pressure pump.
Optionally, the influence factor in above-mentioned two scheme is also possible to other evaluation criterions, according to experiment or qualitative meter
It obtains.
On the basis of any one above-mentioned embodiment, control electromagnetic valve coil is passed through predetermined amount additional drive current,
After realizing the step of electromagnetism needle slows down to valve seat mobile speed, it can also specifically include:
Detect the noise level in the vibratory output or detection oil pump of electromagnetism needle；
Vibratory output or noise level are compared with standard value, length and/or the predetermined amount for adjusting preset time are additional
The current value of driving current.
Wherein, when vibratory output or noise level exceed preset specified amount, preset time is shortened in adjustment and/or adjustment adds
The current value of big predetermined amount additional drive current.
It should be noted that be a kind of feedback provided by the present embodiment, it may according to this operation is detected
Obtained noise or vibratory output, and it is compared with preset standard value, judge whether preset time, current value need to adjust
It is whole.Furthermore it is possible to will adjustment result record, take a seat the reference of control process as needle next time, specific adjustment mode can be with
Influence with reference to the two to vibratory output.When vibratory output or noise level exceed preset specified amount, preset time is shortened in adjustment
And/or adjustment increases the current value of predetermined amount additional drive current.
On the basis of any one above-mentioned embodiment, control electromagnetic valve coil is passed through predetermined amount additional drive current,
After realizing the step of electromagnetism needle slows down to valve seat mobile speed, it can also specifically include:
The oil inlet of oil pump or the current oil pressure of oil outlet are detected, judges whether current oil pressure is stable, if current oil pressure is not
Stablize, then increases preset time.
It should be noted that be a kind of feedback provided by the present embodiment, according to oil inlet and oil outlet
Oil pressure determines whether preset time is reasonable.
Optionally, it other than oil pressure stable case, can also be carried out by length of other various ways to preset time
Evaluation.
On the basis of any one above-mentioned embodiment, control electromagnetic valve coil is passed through predetermined amount additional drive current,
After realizing the step of electromagnetism needle slows down to valve seat mobile speed, it can also specifically include:
Judge whether beat when electromagnetism needle is taken a seat；If it has, then adjustment reduces the electric current of predetermined amount additional drive current
Value.
It should be noted that if electromagnetism needle bounce then illustrates that size of current is in excessive state.With above-described embodiment phase
Similarly, decision condition is not unique, can also be determined by a variety of evaluation methods.
Method in addition to reducing oil pump noise provided by above-described embodiment, it is above-mentioned for implementing that the present invention also provides one kind
Reduce the oil pump of the method for oil pump noise, the oil pump include electromagnetism needle and and electromagnetic valve coil, further include controller, device processed is used
It in the power-off signal for the electromagnetic valve coil for obtaining oil pump, and is delayed after preset time, applies to the electromagnetism needle of oil pump for subtracting
Slow additional force of the electromagnetism needle to valve seat movement speed.The oil pump can greatly reduce its internal noise, avoid vibrating or make an uproar
Sound bring influences.
The usage mode of oil pump provided by the present invention please refers to above-described embodiment, wherein controller can use existing
Controller in technology, or the individual controller of setting control taking a seat for electromagnetism needle.
On the basis of any one above-mentioned embodiment, controller is current controller, and current controller is for obtaining
Electromagnetic valve coil power-off signal to be got, and is delayed after preset time, control electromagnetic valve coil is passed through predetermined amount additional drive current,
To realize that electromagnetism needle slows down the speed mobile to valve seat.
On the basis of any one above-mentioned embodiment, controller can be specifically included: speed sensor, detection dress
It sets, time anticipation device and current value prejudge device.
Wherein, speed sensor is used to detect the current kinetic speed of electromagnetism needle, detection device for detecting electromagnetism
The current elastic expansion range of the elastic component of needle connection.Time prejudges device and is used for according to current kinetic speed, current elastic telescopic
It measures to the predetermined time.
Optionally, speed sensor can be specially velocity sensor.
Current value anticipation device is used to obtain predetermined amount according to the current elastic expansion range of the elastic component after preset time attached
Add the current value of driving current.
On the basis of above-described embodiment, controller further include: noise-monitoring equipment, for detecting oil inlet or fuel-displaced
Mouthful oil pressure stability state oil pressure detection devices and the vibration monitor whether beated of for judging that electromagnetism needle is taken a seat when.
Wherein, noise-monitoring equipment, oil pressure detection devices and vibration monitor are pre- with time anticipation device, current value respectively
Sentence device connection.
Optionally, oil pump provided by above-described embodiment can be specially high-pressure oil pump.
In addition to oil pump provided by above-described embodiment, the present invention also provides a kind of including oil pump disclosed in above-described embodiment
Engine, refer to the prior art for the structure of other each sections of the engine, and repeats no more herein.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Method, oil pump and the engine provided by the present invention for reducing oil pump noise is described in detail above.This
Apply that a specific example illustrates the principle and implementation of the invention in text, the explanation of above example is only intended to
It facilitates the understanding of the method and its core concept of the invention.It should be pointed out that for those skilled in the art,
Without departing from the principles of the invention, can be with several improvements and modifications are made to the present invention, these improvement and modification are also fallen
Enter in the protection scope of the claims in the present invention.
Claims (7)
1. a kind of method for reducing oil pump noise characterized by comprising the power-off signal of the electromagnetic valve coil of oil pump is obtained,
And be delayed after preset time, apply to the electromagnetism needle of oil pump for slowing down the electromagnetism needle to the additional of valve seat movement speed
Power；
Described the step of applying to the electromagnetism needle of oil pump for slowing down additional force of the electromagnetism needle to valve seat movement speed,
Include:
It controls the electromagnetic valve coil and is passed through predetermined amount additional drive current, to realize that the electromagnetism needle slows down to the valve seat
Mobile speed；
The control electromagnetic valve coil is passed through predetermined amount additional drive current, to realize that the electromagnetism needle slows down to described
Before the step of speed of valve seat movement, further includes:
After the preset time, the current state of electromagnetism needle component is detected, according to the current shape of the electromagnetism needle component
State obtains the size of the predetermined amount additional drive current；Wherein, the current state of the electromagnetism needle component include with it is described
Elastic component, the current elastic expansion range after the preset time of electromagnetism needle connection.
2. the method according to claim 1 for reducing oil pump noise, which is characterized in that when getting the electromagnetic valve coil
After power-off signal, the current state of the electromagnetism needle component is detected, and obtain according to the current state of the electromagnetism needle component
To the predetermined time of this noise reduction process；
Wherein, the current state of the electromagnetism needle component include the electromagnetism needle current kinetic speed and/or with it is described
The current elastic expansion range of the elastic component of electromagnetism needle connection.
3. the method according to claim 1 or 2 for reducing oil pump noise, which is characterized in that the control solenoid valve
Coil is passed through predetermined amount additional drive current, with realize the step of electromagnetism needle slows down to the valve seat mobile speed it
Afterwards, further includes:
Detect the noise level in the vibratory output or the detection oil pump of the electromagnetism needle；
The vibratory output or the noise level are compared with standard value, adjust length and/or the institute of the preset time
State the current value of predetermined amount additional drive current；
Wherein, when the vibratory output or the noise level exceed preset specified amount, adjustment shorten the preset time and/
Or adjustment increases the current value of the predetermined amount additional drive current.
4. the method according to claim 1 or 2 for reducing oil pump noise, which is characterized in that the control solenoid valve
Coil is passed through predetermined amount additional drive current, with realize the step of electromagnetism needle slows down to the valve seat mobile speed it
Afterwards, further includes:
The oil inlet of the oil pump or the current oil pressure of oil outlet are detected, whether stable judges the current oil pressure, if described work as
Preceding oil pressure is unstable, then increases the preset time；
And/or judge whether beat when the electromagnetism needle is taken a seat；If it has, then adjustment reduces the predetermined amount additional drives electricity
The current value of stream.
5. a kind of oil pump, including electromagnetism needle and electromagnetic valve coil, which is characterized in that further include controller, the controller is used
It in the power-off signal of the acquisition electromagnetic valve coil, and is delayed after preset time, Xiang Suoshu electromagnetism needle applies for slowing down
State additional force of the electromagnetism needle to valve seat movement speed；
The controller is current controller, and the current controller prolongs for getting electromagnetic valve coil power-off signal
It after Shi Suoshu preset time, controls the electromagnetic valve coil and is passed through predetermined amount additional drive current, to realize the electromagnetism needle
Slow down the speed mobile to the valve seat；
The controller is used for after the preset time, the current state of electromagnetism needle component is detected, according to the solenoid valve
The current state of needle assemblies obtains the size of the predetermined amount additional drive current；Wherein, the electromagnetism needle component is current
State includes the elastic component connecting with the electromagnetism needle, the current elastic expansion range after the preset time.
6. oil pump according to claim 5, which is characterized in that the controller includes:
For detecting the speed sensor of the electromagnetism needle current kinetic speed, for detecting the electromagnetism needle connection
The detection device of the current elastic expansion range of elastic component；
Time for obtaining the predetermined time according to the current kinetic speed, the current elastic expansion range prejudges device；
For being obtained according to the current elastic expansion range of the elastic component after the preset time, the predetermined amount is additional to be driven
The current value of the current value of streaming current prejudges device；
And/or the controller includes the oil of noise-monitoring equipment, oil pressure stability state for detecting oil inlet or oil outlet
Pressure detection device, for judging that the electromagnetism needle is taken a seat when the vibration monitor whether beated；The noise-monitoring equipment, oil
Pressure detection device and vibration monitor are connect with time anticipation device, current value anticipation device respectively.
7. a kind of engine, including oil pump, which is characterized in that the oil pump is the described in any item oil pumps of claim 5 to 6.
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| CN201611051276.8A CN107489569B (en) | 2016-11-24 | 2016-11-24 | A kind of method, oil pump and engine reducing oil pump noise |
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| CN201611051276.8A CN107489569B (en) | 2016-11-24 | 2016-11-24 | A kind of method, oil pump and engine reducing oil pump noise |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4351299A (en) * | 1980-02-19 | 1982-09-28 | Lucas Industries Limited | Fuel injection system |
| US4787823A (en) * | 1985-05-22 | 1988-11-29 | Hultman Barry W | Electromagnetic linear motor and pump apparatus |
| CN101115925A (en) * | 2005-02-02 | 2008-01-30 | 庞巴迪动力产品美国公司 | Method of controlling a pumping assembly |
| CN106032797A (en) * | 2015-03-17 | 2016-10-19 | 德尔福（上海）动力推进系统有限公司 | GDi oil pump coil drive control noise reduction method |
-
2016
- 2016-11-24 CN CN201611051276.8A patent/CN107489569B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4351299A (en) * | 1980-02-19 | 1982-09-28 | Lucas Industries Limited | Fuel injection system |
| US4787823A (en) * | 1985-05-22 | 1988-11-29 | Hultman Barry W | Electromagnetic linear motor and pump apparatus |
| CN101115925A (en) * | 2005-02-02 | 2008-01-30 | 庞巴迪动力产品美国公司 | Method of controlling a pumping assembly |
| CN106032797A (en) * | 2015-03-17 | 2016-10-19 | 德尔福（上海）动力推进系统有限公司 | GDi oil pump coil drive control noise reduction method |
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| CN107489569A (en) | 2017-12-19 |
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Effective date of registration: 20210421 Address after: 102206, Beijing, Shahe, Changping District Town, Sha Yang Road, Lao Wan Village North Patentee after: BEIQI FOTON MOTOR Co.,Ltd. Address before: 100102 building, No. 1, 2 Tong Tung Avenue, Chaoyang District, Beijing Patentee before: BORGWARD AUTOMOTIVE (CHINA) Co.,Ltd. |
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