CN104034534A - Automobile engine hanging disconnection experiment device - Google Patents

Automobile engine hanging disconnection experiment device Download PDF

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Publication number
CN104034534A
CN104034534A CN201410302547.7A CN201410302547A CN104034534A CN 104034534 A CN104034534 A CN 104034534A CN 201410302547 A CN201410302547 A CN 201410302547A CN 104034534 A CN104034534 A CN 104034534A
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engine
central processing
experimental provision
processing unit
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CN104034534B (en
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王宁
关帅
王海林
刘强
杨安志
吴成明
冯擎峰
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
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Abstract

The invention provides an automobile engine hanging disconnection experiment device, and belongs to the technical field of automobiles, wherein the problems that an existing hanging disconnection experiment is poor in accuracy and low in experiment efficiency are solved. The automobile engine hanging disconnection experiment device comprises a central processing unit, a track collection unit capable of collecting a vibration track of an engine, a hanging mechanism for hanging the engine, and a driving unit capable of driving the hanging mechanism to vibrate. The track collection unit and the driving unit are both connected with the central processing unit. The central processing unit can receive a vibration track signal sent by the track collection unit and send a corresponding control signal to the driving unit so that the driving unit can be controlled to drive the hanging mechanism to vibrate along the vibration track of the engine. The automobile engine hanging disconnection experiment device has the advantages of being high in accuracy and high in experiment efficiency.

Description

The experimental provision that car engine suspension disconnects
Technical field
The invention belongs to automobile technical field, relate to a kind of experimental provision, relate in particular to the experimental provision that a kind of car engine suspension disconnects.
Background technology
Along with the development of automobile industry, the requirement of the performance of people to automobile and comfort is also more and more higher.Wherein, as the engine of car power source, it can vibrate when in running order, and by connecting engine and vehicle body four suspend vibration are passed to vehicle body place, and the vibration of vehicle body causes the vibration of some miscellaneous parts in car especially, as bearing circle of automobile etc., this will cause larger impact to the comfort level of automobile.Especially engine is in the time of idling operation, and it vibrates more easily by the perception of passenger institute.
For this problem, people adopt the experiment disconnecting that suspends detect the impact suspending in engine transmitting vibrations process and adjust.Specifically, four in suspending one on engine are disconnected, be that engine only depends on other three transmitting vibrations that suspend, contrast suspends and disconnects the Vibration Condition of fore-and-aft direction dish, what judgement disconnected is suspended at the impact causing in transmitting vibrations process, then some parameters that suspend by change solve the vibration problem of bearing circle.
But, do at present above suspending while disconnecting experiment, need to be sling and be fixed in the one end at the place of suspending disconnecting on engine by suspension bracket, the mounting points that suspends is fixed extremely, thereby can not judge accurately the impact that suspends vibration is transmitted: because under auto idle speed operating mode, when engine luggine, each suspending can have displacement, the parameter such as torsion angle and moment of torsion, when a certain suspend be fixed dead after, suspending of other can not be in original free state, be other three be suspended at disconnect before and after their displacements under idling operation, there is variation in the parameter such as torsion angle and moment of torsion, finally cause can not accurately judging the impact suspending on steering wheel vibration after disconnection, make conventional efficient low.
Summary of the invention
The object of the invention is the problems referred to above that exist for prior art, proposed a kind of can make a certain suspend disconnect after other three experimental provisions of car engine suspension disconnection of the state before disconnection of keeping suspending not that suspend.
Object of the present invention can realize by following technical proposal:
The experimental provision that a kind of car engine suspension disconnects, comprise central processing unit, can gather the track collecting unit of the oscillation trajectory of engine, for hanging the hitch of engine and can driving the driver element of above-mentioned hitch vibration, described track collecting unit is all connected with above-mentioned central processing unit with driver element, and described central processing unit can receive the oscillation trajectory signal that above-mentioned track collecting unit sends and send corresponding control signal and drives the oscillation trajectory vibration of above-mentioned hitch along above-mentioned engine to driver element to control it.
In the time suspending disconnection experiment, the experimental provision first being disconnected by this car engine suspension, before suspending and disconnecting, is gathered the oscillation trajectory at the place of suspending that will disconnect on engine and is converted to electric signal by track collecting unit and be delivered to central processing unit place.After disconnection suspends, sling disconnecting the one end suspending on engine by hitch, and send corresponding control signal to driver element by central processing unit according to the oscillation trajectory of the engine of inputting before, control it and drive the oscillation trajectory vibration of hitch along the engine before disconnecting that suspends, suspending after disconnection, the oscillation trajectory suspending before disconnecting is simulated in the one end that disconnects the place of suspending on the engine that makes to fix with hitch by vibration hitch, avoid engine one end to fix and cause the impact that other is suspended, other three that engine is connected with vehicle body suspend and can keep original state, improve the accuracy that disconnects the experiment that suspends.
In the experimental provision disconnecting at above-mentioned car engine suspension, described track collecting unit comprises the light source that can send linear beam for being fixed on above-mentioned engine one side and the photoelectric conversion module of setting relative to this light source, and this photoelectric conversion module can receive the optical track that above-mentioned light source sends and be converted into electric signal and send to above-mentioned central processing unit.Light source is fixed on around the place that suspends that will disconnect on engine, in the time of engine luggine, it will drive this light source vibration, simultaneously, the luminous point that the linear beam that light source sends is irradiated to photoelectric conversion module place also moves the optical track to form vibration with its vibration, and photoelectric conversion module can be converted to this optical track electric signal and send to central processing unit to process and store.
In the experimental provision disconnecting at above-mentioned car engine suspension, described photoelectric conversion module comprises the mapping plate being oppositely arranged with above-mentioned light source and the corresponding photoelectric commutator that is connected in the opposite side that shines upon plate that adopt photosensitive material to make, and described photoelectric commutator is connected with above-mentioned central processing unit.While setting, mapping plate and light source are oppositely arranged to ensure that light source its linear beam sending in the time vibrating can drop in mapping plate completely, on this mapping plate, form coordinate system, be that each position that light source is irradiated on mapping plate all represents a coordinate, and photoelectric commutator is converted into after electric signal sends to central processing unit to process and can obtains corresponding coordinate, sort and can obtain the track that light beam that light source sends moves according to the order of each coordinate.
In the experimental provision disconnecting at above-mentioned car engine suspension, described light source, mapping plate and photoelectric commutator is two and be connected respectively.For the complete Vibration Condition of simulated engine, on vertical direction that can be on engine and the side of horizontal direction, a light source is respectively set, mapping plate and photoelectric commutator are correspondingly thereto set respectively again to gather complete coordinate and to form corresponding oscillation trajectory.Here, light source also can arrange one and but send orthogonal two bunch shaped light beams, and it can carry out the collection of engine luggine track equally.
As another kind of situation, in the experimental provision disconnecting at above-mentioned car engine suspension, described track collecting unit comprises the vibration transducer one and vibration transducer two that are connected on the vertical direction of above-mentioned engine and the side of horizontal direction, and described vibration transducer one is all connected with above-mentioned central processing unit with vibration transducer two.By two vibration transducers gather respectively on engine, will disconnect one end of suspending in the vertical direction with horizontal direction on Vibration Condition, and send to the processing such as central processing unit synthesizes, calculating to obtain the Vibration Condition of engine.
In the experimental provision disconnecting at above-mentioned car engine suspension, described driver element comprises several drive motor, the output shaft of described drive motor is respectively along the direction setting of X-axis, Y-axis and Z axis, and is connected by pitch wheel and tooth bar respectively between the output shaft of motor and above-mentioned hitch.Making the power conversion of the circumferential rotation of drive motor output by the structure of gear and tooth bar is axially movable power, control respectively the position of hitch in X-axis, Y-axis and Z-direction by several drive motor, and then make hitch arrive the optional position in coordinate system with the control of central processing unit.
In the experimental provision disconnecting at above-mentioned car engine suspension, on described hitch, be also provided with several displacement transducers, described displacement transducer is all connected with above-mentioned central processing unit, and it can detect respectively above-mentioned hitch along the size of X-axis, Y-axis and Z axis displacement and send corresponding detection signal to above-mentioned central processing unit.The displacement of the hitch detecting by displacement transducer and coordinate situation also feed back in central processing unit, make the control of central processing unit more accurate.
As another kind of situation, in the experimental provision disconnecting at above-mentioned car engine suspension, described driver element comprises the solenoid valve of the air feed break-make of several cylinders and energy control cylinder, the piston rod of described cylinder is respectively along be connected corresponding with above-mentioned hitch of direction of X-axis, Y-axis and Z axis, and described solenoid valve is all connected with above-mentioned central processing unit.
In the experimental provision disconnecting at above-mentioned car engine suspension, described hitch comprises for being arranged at the movable block directly over above-mentioned engine and being the web member of strip, one end of described web member and the downside of movable block are connected, the other end is for being connected with engine, and described movable block is connected with above-mentioned driver element.By the action of drive unit drives movable block, and then process web member drives the vibration of engine.
In the experimental provision disconnecting at above-mentioned car engine suspension, described experimental provision also comprises support and hydraulic mechanism, above-mentioned driver element and hitch all connect on above-mentioned support, and described hydraulic mechanism can regulate the vertical position of above-mentioned driver element and hitch.Because of the difference of vehicle, the required height of driver element and hitch is not identical yet, so need hydraulic mechanism to regulate its position, here, hydraulic mechanism can adopt common structure.
In the experimental provision disconnecting at above-mentioned car engine suspension, described experimental provision also comprises the timer that can carry out to the time of vibration of above-mentioned engine timing, and described timer is connected with above-mentioned central processing unit.For the Vibration Condition of accurate simulated engine, in gathering engine luggine track, can and send to central processing unit by the time of vibration of timer record engine, be more conducive to the simulation control of central processing unit.
Compared with prior art, this car engine suspension disconnect experimental provision by collections suspend disconnect before engine relevant position oscillation trajectory and suspend disconnection after make this oscillation trajectory of simulation of engine, make a certain suspending disconnect front and back, other three suspend and can keep original duty, make to suspend and disconnect in experiment, the detection of the impact of the vibration of a certain parameter suspending on vehicle steering is more accurate with judgement, regulate afterwards the parameter suspending also more efficient, improved whole suspending and disconnected the degree of accuracy and the debugging efficiency that in experiment, detect.
Brief description of the drawings
Fig. 1 is the theory structure block diagram of the experimental provision of this car engine suspension disconnection.
In figure, 1, central processing unit; 2, track collecting unit; 21, light source; 22, mapping plate; 23, photoelectric commutator; 3, hitch; 31, movable block; 32, web member; 4, driver element; 41, drive motor; 42, gear; 43, tooth bar; 5, displacement transducer.
Embodiment
Be below specific embodiments of the invention by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As shown in Figure 1, the experimental provision that this car engine suspension disconnects comprises central processing unit 1, can gather the track collecting unit 2 of the oscillation trajectory of engine, for hang engine hitch 3, can drive the driver element 4 that hitch 3 vibrates and be arranged at and can detect respectively its big or small several displacement transducers 5 along X-axis, Y-axis and Z axis displacement on hitch 3, track collecting unit 2, driver element 4 and displacement transducer 5 are all connected with central processing unit 1.
Wherein, track collecting unit 2 comprises again the light source that can send linear beam 21 for being fixed on engine one side and the photoelectric conversion module with the relative setting of this light source 21, and photoelectric conversion module can receive the optical track that light source 21 sends and be converted into electric signal and send to central processing unit 1; Hitch 3 comprises that the downside of one end of web member 32 and movable block 31 is connected for being arranged at the movable block 31 directly over engine and being the web member 32 of strip, and the other end is for being connected with engine; Driver element 4 comprises several drive motor 41, the output shaft of several drive motor 41 is respectively along the direction setting of X-axis, Y-axis and Z axis, and is connected by pitch wheel 42 and tooth bar 43 respectively between the output shaft of motor and the movable block 31 of hitch 3.
In the present embodiment, light source 21 is selected laser; Photoelectric conversion module comprises the mapping plate 22 being oppositely arranged with light source 21 and the corresponding photoelectric commutator 23 that is connected in the opposite side that shines upon plate 22 that adopt photosensitive material to make, because the vibration of engine is moving back and forth in X-axis, Y-axis and three directions of Z axis, so, link together as one group taking each light source 21, mapping plate 22 and photoelectric commutator 23 correspondences, totally two groups, two light sources 21 are wherein divided on the vertical direction of engine and the side of horizontal direction.The quantity of drive motor 41 and displacement transducer 5 is three, and the output shaft of three drive motor 41 is respectively along the direction setting of X-axis, Y-axis and Z axis.Web member 32 is connecting rod, and its upper end and movable block 31 are connected, and lower end has the convenient connecting portion being connected with engine.
The course of work of the experimental provision that this car engine suspension disconnects is as follows:
First, suspend disconnect before, engine kill, are fixed on light source 21 at the place that suspends that will disconnect on engine, and mapping plate 22 and light source 21 are oppositely arranged to ensure that light source 21 its linear beam sending when with engine luggine can drop in mapping plate 22 completely.On this mapping plate 22, formed coordinate system, each position that light source 21 is irradiated on mapping plate 22 all represents a coordinate.Now, engine is static, and the Ear Mucosa Treated by He Ne Laser Irradiation that light source 21 sends is to the equilibrium point shining upon on plate 22, i.e. common origin place.
Starting engine work is until its stabilization of speed, and now the movement locus of engine is certain rule.The light source 21 that is fixed on engine outside vibrates with engine, and its linear beam sending is radiated at the also vibration thereupon of luminous point on mapping plate 22, forms specific optical track.In the process moving at luminous point, the photoelectric sensor that is connected in mapping plate 22 opposite sides is converted to the light signal capturing on mapping plate 22 electric signal and sends to central processing unit 1, central processing unit 1 processes to obtain several coordinates to this electric signal, and each coordinate is sorted in order and can obtain the movement locus of luminous point.The laser sending because of light source 21 is two, so the electric signal that central processing unit 1 is changed two photoelectric commutators 23 synthesizes processing, and then obtains the oscillation trajectory that engine is complete.
Then, disconnection suspends so that engine only suspends and is connected with vehicle body by other three, the lower end of the web member 32 of suspend on engine gap and hitch 3 is connected, and now, the laser that the light source 21 on engine sends is radiated at the common origin place on mapping plate 22 equally.
Then, central processing unit 1 is according to the oscillation trajectory of the engine before disconnecting that suspends that gathers and store, three drive motor 41 that transmit control signal respectively to driver element 4 are to control its work, the power of the circumferential rotation that drive motor 41 is exported is converted to axially movable power output through the transmission of gear 42 and tooth bar 43, thereby drive respectively the movable block 31 on hitch 3 to move to corresponding coordinate place along the direction of X-axis, Y-axis and Z axis, and then the oscillation trajectory that drives the simulation of engine being connected with movable block 31 by web member 32 to suspend before disconnecting vibrate.In this driving process, three displacement transducers 5 detect respectively the displacement size of movable block 31 in the direction of X-axis, Y-axis and Z axis and detection signal are sent to central processing unit 1, with the accuracy that ensures that central processing unit 1 is controlled.
Finally, more relatively suspend disconnect before and after the Vibration Condition of bearing circle or miscellaneous part in automobile, judge the impact suspending on the vibration of bearing circle place of this disconnection, and then reduce the vibration of bearing circle by the suspend mode of parameters of change.As need detect the impact that other suspends on the vibration of bearing circle place, can repeat above step.
Because of vehicle different, engine and the height required with the hitch 3 of its corresponding connection are not identical yet, so this experimental provision is also provided with support and hydraulic mechanism, in driver element 4 and the equal connection bracket of hitch 3, hydraulic mechanism can regulate the vertical position of driver element 4 and hitch 3, here, hydraulic mechanism can adopt common structure.
For the oscillation trajectory of accurate simulated engine, also can on central processing unit 1, connect a timer that can carry out to the time of vibration of engine timing, like this, in gathering engine luggine track, can and send to central processing unit 1 by the time of vibration of timer record engine, be more conducive to the accurate simulation of central processing unit 1.
Except above technical scheme, above track collecting unit 2 also can comprise the vibration transducer one and vibration transducer two that are connected on the vertical direction of engine and the side of horizontal direction, and vibration transducer one is all connected with central processing unit 1 with vibration transducer two.Like this, by two vibration transducers gather respectively on engine, will disconnect one end of suspending in the vertical direction with horizontal direction on Vibration Condition, and send to the processing such as central processing unit 1 synthesizes, calculating to obtain the Vibration Condition of engine.Driver element 4 can comprise the solenoid valve of the air feed break-make of several cylinders and energy control cylinder, and the piston rod of cylinder is respectively along the direction of X-axis, Y-axis and Z axis and corresponding connection of movable block 31 of hitch 3, and solenoid valve is all connected with central processing unit 1.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendments or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.

Claims (10)

1. the experimental provision that car engine suspension disconnects, it is characterized in that, described experimental provision comprises central processing unit (1), can gather the track collecting unit (2) of the oscillation trajectory of engine, for hanging the hitch (3) of engine and can driving the driver element (4) of above-mentioned hitch (3) vibration, described track collecting unit (2) is all connected with above-mentioned central processing unit (1) with driver element (4), and described central processing unit (1) can receive the oscillation trajectory signal of above-mentioned track collecting unit (2) transmission and send corresponding control signal and drive the oscillation trajectory vibration of above-mentioned hitch (3) along above-mentioned engine to driver element (4) to control it.
2. the experimental provision that car engine suspension according to claim 1 disconnects, it is characterized in that, described track collecting unit (2) comprises the light source that can send linear beam (21) for being fixed on above-mentioned engine one side and the photoelectric conversion module with the relative setting of this light source (21), and this photoelectric conversion module can receive the optical track that above-mentioned light source (21) sends and be converted into electric signal and send to above-mentioned central processing unit (1).
3. the experimental provision that car engine suspension according to claim 2 disconnects, it is characterized in that, described photoelectric conversion module comprises the mapping plate (22) being oppositely arranged with above-mentioned light source (21) and the corresponding photoelectric commutator (23) that is connected in the opposite side that shines upon plate (22) that adopt photosensitive material to make, and described photoelectric commutator (23) is connected with above-mentioned central processing unit (1).
4. the experimental provision that car engine suspension according to claim 3 disconnects, is characterized in that, described light source (21), mapping plate (22) and photoelectric commutator (23) is two and be connected respectively.
5. the experimental provision that car engine suspension according to claim 1 disconnects, it is characterized in that, described track collecting unit (2) comprises the vibration transducer one and vibration transducer two that are connected on the vertical direction of above-mentioned engine and the side of horizontal direction, and described vibration transducer one is all connected with above-mentioned central processing unit (1) with vibration transducer two.
6. the experimental provision disconnecting according to the car engine suspension described in any one in claim 1~5, it is characterized in that, described driver element (4) comprises several drive motor (41), the output shaft of described drive motor (41) is respectively along the direction setting of X-axis, Y-axis and Z axis, and is connected by pitch wheel (42) and tooth bar (43) respectively between the output shaft of motor and above-mentioned hitch (3).
7. the experimental provision disconnecting according to the car engine suspension described in any one in claim 1~5, it is characterized in that, on described hitch (3), be also provided with several displacement transducers (5), described displacement transducer (5) is all connected with above-mentioned central processing unit (1), and it can detect respectively above-mentioned hitch (3) along the size of X-axis, Y-axis and Z axis displacement and send corresponding detection signal to above-mentioned central processing unit (1).
8. the experimental provision disconnecting according to the car engine suspension described in any one in claim 1~5, it is characterized in that, described hitch (3) comprises for being arranged at the movable block (31) directly over above-mentioned engine and being the web member (32) of strip, one end of described web member (32) and the downside of movable block (31) are connected, the other end is for being connected with engine, and described movable block (31) is connected with above-mentioned driver element (4).
9. the experimental provision disconnecting according to the car engine suspension described in any one in claim 1~5, it is characterized in that, described experimental provision also comprises support and hydraulic mechanism, above-mentioned driver element (4) and hitch (3) all connect on above-mentioned support, and described hydraulic mechanism can regulate the vertical position of above-mentioned driver element (4) and hitch (3).
10. the experimental provision disconnecting according to the car engine suspension described in any one in claim 1~5, it is characterized in that, described experimental provision also comprises the timer that can carry out to the time of vibration of above-mentioned engine timing, and described timer is connected with above-mentioned central processing unit (1).
CN201410302547.7A 2014-06-28 2014-06-28 Automobile engine hanging disconnection experiment device Active CN104034534B (en)

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