CN116522509B - Vehicle module arrangement method, system, computer and readable storage medium - Google Patents
Vehicle module arrangement method, system, computer and readable storage medium Download PDFInfo
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Abstract
The application provides a vehicle module arrangement method, a system, a computer and a readable storage medium, wherein the method comprises the following steps: constructing a whole vehicle three-dimensional shell model, and acquiring a vehicle module matched with the whole vehicle three-dimensional shell model; the method comprises the steps of obtaining arrangement information respectively corresponding to vehicle modules, and splitting the vehicle modules into symmetrical arrangement modules and asymmetrical arrangement modules according to the arrangement information; acquiring weight information corresponding to each asymmetric arrangement module, and calculating the wheel load distributed to each wheel of the whole vehicle three-dimensional shell model by each asymmetric arrangement module according to the weight information; calculating the total wheel load of a plurality of asymmetric arrangement modules applied to each wheel one by one, and adjusting the arrangement positions of the asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the total wheel load so as to make the sizes of the total wheel loads on the left side and the right side in the whole vehicle three-dimensional shell model equal or similar. The application can effectively avoid the phenomenon of unequal heights on the left side and the right side of the vehicle.
Description
Technical Field
The present invention relates to the field of automotive technologies, and in particular, to a vehicle module arrangement method, a system, a computer, and a readable storage medium.
Background
With the progress of science and technology and the rapid development of productivity, automobiles have been popularized in people's daily lives, and have become one of the indispensable transportation means for people to travel, greatly facilitating people's lives.
At present, along with the increasing functions of automobiles, parts in the automobiles are increased, and in the design process of the automobiles, a plurality of parts cannot be designed correspondingly and symmetrically, so that the center of mass of the automobile deviates from the symmetry plane of the automobile, and meanwhile, when a suspension system is designed symmetrically, the problem of uneven left and right body postures can be caused due to inconsistent left and right wheel loads.
In order to solve the problem that the vehicle body is not equal in posture, most of the existing vehicle enterprises carry out left-right differential design on the elastic pieces of the suspension system, however, due to various kinds of the suspension elastic pieces, various physical parameters of the suspension elastic pieces need to be considered, so that the difficulty in manufacturing the vehicle is greatly increased, and the production efficiency of the vehicle is correspondingly reduced.
Disclosure of Invention
Based on this, the present invention aims to provide a suspension device for solving the problem that the difficulty in manufacturing a vehicle is greatly increased due to the fact that the suspension elastic members are various in variety and various physical parameters of the suspension elastic members need to be considered in the prior art.
A first aspect of an embodiment of the present invention proposes a vehicle module arrangement method, wherein the method includes:
constructing a whole vehicle three-dimensional shell model based on a preset program, and acquiring a plurality of vehicle modules matched with the whole vehicle three-dimensional shell model;
obtaining arrangement information corresponding to the vehicle modules respectively, and splitting the vehicle modules into symmetrical arrangement modules and asymmetrical arrangement modules according to the arrangement information;
acquiring weight information corresponding to each asymmetric arrangement module, and calculating the wheel load distributed to each wheel of the whole vehicle three-dimensional shell model by each asymmetric arrangement module according to the weight information;
calculating the total wheel load of a plurality of asymmetric arrangement modules applied to each wheel one by one, and adjusting the arrangement positions of the asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the total wheel load so as to make the sizes of the total wheel loads on the left side and the right side in the whole vehicle three-dimensional shell model equal or similar.
The beneficial effects of the invention are as follows: the symmetrical arrangement modules and the asymmetrical arrangement modules in the vehicle modules can be effectively distinguished by acquiring the arrangement information, further, the weight information of each asymmetrical module is acquired, and the total wheel load applied to each wheel is further calculated according to the weight information, so that the positions of the asymmetrical arrangement modules can be correspondingly adjusted according to the total wheel load on each wheel, and finally, the total wheel loads on the left side and the right side of the current three-dimensional shell model of the whole vehicle can be equal or similar, the phenomenon of unequal body postures on the left side and the right side of the vehicle can be effectively avoided, the research and development efficiency of the vehicle is improved, and the use experience of a user is correspondingly improved.
Preferably, the step of splitting the plurality of vehicle modules into a symmetrical arrangement module and an asymmetrical arrangement module according to the arrangement information includes:
extracting whole vehicle boundary condition information and module performance requirement information contained in the arrangement information, and analyzing the initial arrangement position of each vehicle module in the whole vehicle three-dimensional shell model according to the whole vehicle boundary condition information and the module performance requirement information;
Extracting a central axis corresponding to the whole vehicle three-dimensional shell model, and detecting the relative position relationship between the initial arrangement position corresponding to each vehicle module and the central axis one by one, wherein the relative position relationship comprises a symmetrical arrangement relationship and an asymmetrical arrangement relationship;
if the relative position relationship between the initial arrangement position corresponding to the vehicle module and the central axial surface is detected to be the symmetrical arrangement relationship, judging that the current vehicle module is the symmetrical arrangement module;
and if the relative position relation between the initial arrangement position corresponding to the vehicle module and the central axial surface is detected to be the asymmetric arrangement relation, judging that the current vehicle module is the asymmetric arrangement module.
Preferably, the step of calculating the wheel load allocated to each wheel of the whole vehicle three-dimensional shell model by each asymmetric arrangement module according to the weight information comprises the following steps:
constructing a corresponding whole vehicle coordinate system based on the whole vehicle three-dimensional shell model, and respectively detecting the corresponding centroid coordinates of each asymmetric arrangement module in the whole vehicle coordinate system;
collecting the weight information corresponding to each asymmetric arrangement module, and constructing a mapping relation between the weight information and the centroid coordinates;
And calculating the wheel load distributed to each wheel by each asymmetric arrangement module according to the weight information and the mass center coordinates, wherein an X axis of the whole vehicle coordinate system is positioned at the center of a front wheel, a Y axis is positioned at the center axial surface, and a Z axis is positioned at the upper plane of the frame.
Preferably, the expression for calculating the wheel load of each asymmetric arrangement module distributed on the left front wheel is as follows:
wherein m is alf Representing the wheel load of module a on the left front wheel, m a Representing the weight of module a, W represents the track width, X a And Y a Represents the abscissa and ordinate of the centroid of module a, L represents the wheelbase, X o2 An abscissa representing the left rear wheel center;
the expression for calculating the wheel load distributed on the left rear wheel by each asymmetric arrangement module is as follows:
wherein m is alr Indicating that block a acts on the leftWheel load of rear wheel, X o1 An abscissa representing the left front wheel center;
the expression for calculating the wheel load distributed on the right front wheel by each asymmetric arrangement module is as follows:
wherein m is arf Representing the wheel load of module a acting on the right front wheel;
the expression for calculating the wheel load distributed on the right rear wheel by each asymmetric arrangement module is as follows:
wherein m is arr Representing the wheel load of module a acting on the right rear wheel.
Preferably, the step of calculating the total wheel load applied to each wheel by the plurality of asymmetric arrangement modules one by one includes:
The expression for calculating the total wheel load applied to the left front wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is lf Representing the total wheel load on the left front wheel, n representing the number of asymmetrically arranged modules;
the expression for calculating the total wheel load applied to the left rear wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is lr Representing the total wheel load on the left rear wheel;
the expression for calculating the total wheel load applied to the right front wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is rf Representing the total wheel load on the right front wheel;
the expression for calculating the total wheel load applied to the right rear wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is rr Indicating the total wheel load on the right rear wheel.
Preferably, the step of adjusting the arrangement positions of the plurality of asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the total wheel load includes:
respectively calculating a first total wheel load born by the right side of the three-dimensional shell model of the whole vehicle and a second total wheel load born by the left side of the three-dimensional shell model of the whole vehicle, and comparing the sizes of the first total wheel load and the second total wheel load;
if the first total wheel load is detected to be equal to the second total wheel load, the arrangement positions of a plurality of asymmetric arrangement modules in the whole vehicle three-dimensional shell model are not adjusted;
If the first total wheel load and the second total wheel load are detected to be unequal, calculating a target difference value between the first total wheel load and the second total wheel load, and adjusting the arrangement positions of a plurality of asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the target difference value.
Preferably, the step of adjusting the arrangement positions of the plurality of asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the target difference value includes:
respectively calculating weight deviation values of the left side and the right side of each asymmetric arrangement module relative to the center of the three-dimensional shell model of the whole vehicle, and finding out a target weight deviation value matched with the target deviation value;
and setting an asymmetric arrangement module corresponding to the target weight deviation value as an adjustment target, and adjusting the arrangement position of the adjustment target in the whole vehicle three-dimensional shell model.
A second aspect of an embodiment of the present invention proposes a vehicle module arrangement system, the system comprising:
the acquisition module is used for constructing a whole vehicle three-dimensional shell model based on a preset program and acquiring a plurality of vehicle modules matched with the whole vehicle three-dimensional shell model;
The splitting module is used for acquiring arrangement information corresponding to the vehicle modules respectively and splitting the vehicle modules into a symmetrical arrangement module and an asymmetrical arrangement module according to the arrangement information;
the calculation module is used for collecting weight information corresponding to each asymmetric arrangement module respectively and calculating the wheel load distributed to each wheel of the whole vehicle three-dimensional shell model by each asymmetric arrangement module according to the weight information;
the adjusting module is used for calculating the total wheel load which is respectively applied to each wheel by the asymmetric arrangement modules one by one, and adjusting the arrangement positions of the asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the total wheel load so as to enable the sizes of the total wheel loads on the left side and the right side in the whole vehicle three-dimensional shell model to be equal or similar.
In the vehicle module arrangement system, the splitting module is specifically configured to:
extracting whole vehicle boundary condition information and module performance requirement information contained in the arrangement information, and analyzing the initial arrangement position of each vehicle module in the whole vehicle three-dimensional shell model according to the whole vehicle boundary condition information and the module performance requirement information;
Extracting a central axis corresponding to the whole vehicle three-dimensional shell model, and detecting the relative position relationship between the initial arrangement position corresponding to each vehicle module and the central axis one by one, wherein the relative position relationship comprises a symmetrical arrangement relationship and an asymmetrical arrangement relationship;
if the relative position relationship between the initial arrangement position corresponding to the vehicle module and the central axial surface is detected to be the symmetrical arrangement relationship, judging that the current vehicle module is the symmetrical arrangement module;
and if the relative position relation between the initial arrangement position corresponding to the vehicle module and the central axial surface is detected to be the asymmetric arrangement relation, judging that the current vehicle module is the asymmetric arrangement module.
In the vehicle module arrangement system, the computing module is specifically configured to:
constructing a corresponding whole vehicle coordinate system based on the whole vehicle three-dimensional shell model, and respectively detecting the corresponding centroid coordinates of each asymmetric arrangement module in the whole vehicle coordinate system;
collecting the weight information corresponding to each asymmetric arrangement module, and constructing a mapping relation between the weight information and the centroid coordinates;
And calculating the wheel load distributed to each wheel by each asymmetric arrangement module according to the weight information and the mass center coordinates, wherein an X axis of the whole vehicle coordinate system is positioned at the center of a front wheel, a Y axis is positioned at the center axial surface, and a Z axis is positioned at the upper plane of the frame.
In the vehicle module arrangement system, the expression of calculating the wheel load of each asymmetric arrangement module distributed on the left front wheel is as follows:
wherein m is alf Representing the wheel load of module a on the left front wheel, m a Representing the weight of module a, W represents the track width, X a And Y a Represents the abscissa and ordinate of the centroid of module a, L represents the wheelbase, X o2 An abscissa representing the left rear wheel center;
the expression for calculating the wheel load distributed on the left rear wheel by each asymmetric arrangement module is as follows:
wherein m is alr Representing the wheel load of module a acting on the left rear wheel, X o1 An abscissa representing the left front wheel center;
the expression for calculating the wheel load distributed on the right front wheel by each asymmetric arrangement module is as follows:
wherein m is arf Representing the wheel load of module a acting on the right front wheel;
the expression for calculating the wheel load distributed on the right rear wheel by each asymmetric arrangement module is as follows:
wherein m is arr Representing the wheel load of module a acting on the right rear wheel.
In the vehicle module arrangement system, the step of calculating the total wheel load applied to each wheel by the asymmetric arrangement modules one by one includes:
the expression for calculating the total wheel load applied to the left front wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is lf Representing the total wheel load on the left front wheel, n representing the number of asymmetrically arranged modules;
the expression for calculating the total wheel load applied to the left rear wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is lr Representing the total wheel load on the left rear wheel;
the expression for calculating the total wheel load applied to the right front wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is rf Representing the total wheel load on the right front wheel;
the expression for calculating the total wheel load applied to the right rear wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is rr Indicating the total wheel load on the right rear wheel.
In the vehicle module arrangement system, the adjusting module is specifically configured to:
respectively calculating a first total wheel load born by the right side of the three-dimensional shell model of the whole vehicle and a second total wheel load born by the left side of the three-dimensional shell model of the whole vehicle, and comparing the sizes of the first total wheel load and the second total wheel load;
If the first total wheel load is detected to be equal to the second total wheel load, the arrangement positions of a plurality of asymmetric arrangement modules in the whole vehicle three-dimensional shell model are not adjusted;
if the first total wheel load and the second total wheel load are detected to be unequal, calculating a target difference value between the first total wheel load and the second total wheel load, and adjusting the arrangement positions of a plurality of asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the target difference value.
In the vehicle module arrangement system, the adjusting module is further specifically configured to:
respectively calculating weight deviation values of the left side and the right side of each asymmetric arrangement module relative to the center of the three-dimensional shell model of the whole vehicle, and finding out a target weight deviation value matched with the target deviation value;
and setting an asymmetric arrangement module corresponding to the target weight deviation value as an adjustment target, and adjusting the arrangement position of the adjustment target in the whole vehicle three-dimensional shell model.
A third aspect of the embodiment of the present invention proposes a computer comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the vehicle module arrangement method as described above when executing the computer program.
A fourth aspect of the embodiments of the present invention proposes a readable storage medium having stored thereon a computer program, wherein the program, when executed by a processor, implements a vehicle module arrangement method as described above.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a flowchart of a vehicle module arrangement method provided by a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a whole vehicle coordinate system in a vehicle module arrangement method according to a second embodiment of the present invention;
fig. 3 is a block diagram showing a vehicle module arrangement system according to a third embodiment of the present invention.
The invention will be further described in the following detailed description in conjunction with the above-described figures.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Several embodiments of the invention are presented in the figures. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a vehicle module arrangement method provided by a first embodiment of the present invention is shown, where the vehicle module arrangement method provided by the present embodiment can effectively avoid the phenomenon that the vehicle body postures on the left and right sides of the vehicle are not equal, thereby improving the development efficiency of the vehicle and correspondingly improving the use experience of the user.
Specifically, the vehicle module arrangement method provided in the embodiment specifically includes the following steps:
step S10, a whole vehicle three-dimensional shell model is constructed based on a preset program, and a plurality of vehicle modules matched with the whole vehicle three-dimensional shell model are obtained;
specifically, in the present embodiment, it should be noted first that, the vehicle module arrangement method provided in the present embodiment is implemented based on existing three-dimensional drawing software, preferably, the three-dimensional drawing software may be three-dimensional drawing software such as ug, cata, and solidworks, and further, a required three-dimensional model may be constructed by the three-dimensional drawing software.
Based on this, in this step, it should be noted that, for convenience of operation, the embodiment constructs a whole vehicle three-dimensional shell model in the three-dimensional drawing software in equal proportion to the real vehicle, where it should be noted that the inside of the whole vehicle three-dimensional shell model is hollow, but the whole vehicle three-dimensional shell model includes four wheels, on this basis, this step further invokes a plurality of vehicle modules adapted to the model of the current whole vehicle three-dimensional shell model in the module database, and then arranges the current plurality of vehicle modules in the inside of the current whole vehicle three-dimensional shell model through the subsequent steps.
Step S20, obtaining arrangement information corresponding to a plurality of vehicle modules respectively, and splitting the plurality of vehicle modules into a symmetrical arrangement module and an asymmetrical arrangement module according to the arrangement information;
further, in this step, it should be noted that, in this step, the layout information corresponding to the current plurality of vehicle modules is further found in the existing vehicle database, and specifically, the layout information may include the layout position of each vehicle module and the layout relationship between the adjacent vehicle modules.
Based on the above, the step further obtains a middle shaft surface corresponding to the current three-dimensional shell model of the whole vehicle, and further determines that the modules are symmetrically arranged if the vehicle modules are symmetrically arranged on two sides of the middle shaft surface, and correspondingly determines that the modules are asymmetrically arranged if the vehicle modules are asymmetrically arranged on two sides of the middle shaft surface, so that the subsequent modules are conveniently arranged.
Step S30, acquiring weight information corresponding to each asymmetric arrangement module, and calculating the wheel load distributed to each wheel of the whole vehicle three-dimensional shell model by each asymmetric arrangement module according to the weight information;
Furthermore, in this step, it should be noted that, after the required asymmetric arrangement modules are obtained through the above steps, the present step further collects weight information corresponding to each of the current asymmetric arrangement modules, and based on this, the wheel load allocated to each wheel of the current three-dimensional shell model of the whole vehicle by each asymmetric arrangement module can be rapidly calculated.
Specifically, in this step, the symmetrical arrangement modules may be chassis and central control modules, and correspondingly, the asymmetrical arrangement modules may be modules of an engine, a gearbox, a storage battery, and the like, and the arrangement positions of the modules may be effectively adjusted by distinguishing the symmetrical arrangement modules from the asymmetrical arrangement modules, so as to achieve the effect of balancing the wheel loads at two sides of the vehicle.
Step S40, calculating the total wheel load of a plurality of asymmetric arrangement modules applied to each wheel one by one, and adjusting the arrangement positions of the asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the total wheel load so as to enable the sizes of the total wheel loads on the left side and the right side in the whole vehicle three-dimensional shell model to be equal or similar.
Finally, in this step, it should be noted that, after the required asymmetric arrangement modules are distinguished through the above steps, this step further calculates the total wheel load applied to each wheel by the current asymmetric arrangement modules respectively, and correspondingly adjusts the arrangement positions of the corresponding asymmetric arrangement modules in the whole vehicle three-dimensional shell model in real time according to the total wheel load on both sides of the vehicle.
Based on the method, the arrangement positions of the asymmetric arrangement modules in the whole vehicle three-dimensional shell model can be continuously adjusted, the sizes of the total wheel loads at the left side and the right side in the current whole vehicle three-dimensional shell model tend to be equal or similar, and particularly, the phenomenon of unequal heights at the left side and the right side can be effectively avoided under the condition that the sizes of the total wheel loads at the left side and the right side of the vehicle are equal or similar, so that the development of subsequent vehicles can be facilitated.
When the vehicle three-dimensional shell model is used, symmetrical arrangement modules and asymmetrical arrangement modules in the vehicle modules can be effectively distinguished by acquiring arrangement information, further, weight information of each asymmetrical module is acquired, and further, the total wheel load applied to each wheel is calculated according to the weight information, so that the positions of the asymmetrical arrangement modules can be correspondingly adjusted according to the total wheel load on each wheel, and finally, the total wheel loads on the left side and the right side of the current vehicle three-dimensional shell model can be equal or similar, the phenomenon of unequal body gestures on the left side and the right side of the vehicle can be effectively avoided, the research and development efficiency of the vehicle is improved, and the use experience of a user is correspondingly improved.
It should be noted that the foregoing implementation procedure is only for illustrating the feasibility of the present application, but this does not represent that the vehicle module arrangement method of the present application is only one implementation procedure, and may be incorporated into the feasible embodiment of the present application as long as the vehicle module arrangement method of the present application can be implemented.
In summary, the vehicle module arrangement method provided by the embodiment of the application can effectively avoid the phenomenon of unequal height of the vehicle body postures at the left side and the right side of the vehicle, improves the research and development efficiency of the vehicle, and correspondingly improves the use experience of users.
The second embodiment of the present application also provides a vehicle module arrangement method, which is different from the vehicle module arrangement method provided in the first embodiment described above in that:
specifically, in this embodiment, it should be noted that the step of splitting the plurality of vehicle modules into the symmetrical arrangement module and the asymmetrical arrangement module according to the arrangement information includes:
extracting whole vehicle boundary condition information and module performance requirement information contained in the arrangement information, and analyzing the initial arrangement position of each vehicle module in the whole vehicle three-dimensional shell model according to the whole vehicle boundary condition information and the module performance requirement information;
Extracting a central axis corresponding to the whole vehicle three-dimensional shell model, and detecting the relative position relationship between the initial arrangement position corresponding to each vehicle module and the central axis one by one, wherein the relative position relationship comprises a symmetrical arrangement relationship and an asymmetrical arrangement relationship;
if the relative position relationship between the initial arrangement position corresponding to the vehicle module and the central axial surface is detected to be the symmetrical arrangement relationship, judging that the current vehicle module is the symmetrical arrangement module;
and if the relative position relation between the initial arrangement position corresponding to the vehicle module and the central axial surface is detected to be the asymmetric arrangement relation, judging that the current vehicle module is the asymmetric arrangement module.
Specifically, in this embodiment, it should be noted that after the arrangement information is acquired, the whole vehicle boundary condition information and the module performance requirement information included in the current arrangement information need to be extracted first, that is, the design requirement of each module is extracted, and based on this, the initial arrangement position of each current vehicle module in the whole vehicle three-dimensional shell model can be correspondingly analyzed.
Further, a middle axial surface corresponding to the current whole vehicle three-dimensional shell model is synchronously extracted, specifically, the middle axial surface is perpendicular to a horizontal plane, and the middle axial surface is positioned on a symmetry line of the current whole vehicle three-dimensional shell model. Further, the relative positional relationship between each vehicle module and the current center axis is detected one by one, specifically, if the current vehicle module is symmetrically arranged with respect to the center axis, the current vehicle module may be determined to be a symmetrically arranged module, and if the current vehicle module is asymmetrically arranged with respect to the center axis, the current vehicle module may be determined to be an asymmetrically arranged module.
Specifically, in this embodiment, it should be further noted that the step of calculating, according to the weight information, the wheel load of each of the asymmetric arrangement modules allocated to each of the wheels of the whole vehicle three-dimensional shell model includes:
constructing a corresponding whole vehicle coordinate system based on the whole vehicle three-dimensional shell model, and respectively detecting the corresponding centroid coordinates of each asymmetric arrangement module in the whole vehicle coordinate system;
collecting the weight information corresponding to each asymmetric arrangement module, and constructing a mapping relation between the weight information and the centroid coordinates;
and calculating the wheel load distributed to each wheel by each asymmetric arrangement module according to the weight information and the mass center coordinates, wherein an X axis of the whole vehicle coordinate system is positioned at the center of a front wheel, a Y axis is positioned at the center axial surface, and a Z axis is positioned at the upper plane of the frame.
Specifically, in this embodiment, it should also be noted that, as shown in fig. 2, in order to accurately adjust the positions of the asymmetric arrangement modules, the embodiment also constructs a corresponding whole vehicle based on the current three-dimensional housing model of the whole vehicleThe coordinate system, wherein, it should be pointed out that the X axle of current whole car coordinate system is located the front wheel center, and the Y axle is located above-mentioned mid-axis face, and the Z axle is located the upper plane of frame. In the explanation taking the module a as an example, specifically, G represents the mass center of the module a, L represents the wheelbase, W represents the wheelbase, O 1 Represents the left front wheel center, O 2 Represents the left rear wheel center, O 3 Represents the right front wheel center, O 4 Indicating the right rear wheel center.
Meanwhile, in this embodiment, it is also required to detect the centroid coordinates corresponding to each of the current asymmetric arrangement modules in the current whole vehicle coordinate system, that is, (X) a ，Y a ，Z a ) It will be appreciated that each asymmetrically arranged module has a corresponding centroid coordinate. Based on the weight information, the weight information corresponding to each asymmetric module is further collected, and a mapping relation between the current weight information and the current centroid coordinates is constructed.
On the basis, the wheel load distributed to each wheel by each asymmetric arrangement module can be correspondingly calculated according to the weight information and the mass center coordinates corresponding to each asymmetric module, so that the total wheel load on each wheel can be further calculated.
In addition, in the present embodiment, it should be noted that the expression for calculating the wheel load allocated to the left front wheel by each of the asymmetric arrangement modules is:
wherein m is alf Representing the wheel load of module a on the left front wheel, m a Representing the weight of module a, W represents the track width, X a And Y a Represents the abscissa and ordinate of the centroid of module a, L represents the wheelbase, X o2 An abscissa representing the left rear wheel center;
the expression for calculating the wheel load distributed on the left rear wheel by each asymmetric arrangement module is as follows:
wherein m is alr Representing the wheel load of module a acting on the left rear wheel, X o1 An abscissa representing the left front wheel center;
the expression for calculating the wheel load distributed on the right front wheel by each asymmetric arrangement module is as follows:
wherein m is arf Representing the wheel load of module a acting on the right front wheel;
the expression for calculating the wheel load distributed on the right rear wheel by each asymmetric arrangement module is as follows:
wherein m is arr Representing the wheel load of module a acting on the right rear wheel.
In addition, in the present embodiment, it should be noted that, by the algorithm described above, the wheel loads applied to the four wheels by each asymmetric arrangement module can be calculated one by one, so that the difference between the wheel loads received by the four wheels can be clearly known.
Based on the above, the positions of the asymmetric arrangement modules in the whole vehicle three-dimensional shell model can be correspondingly adjusted according to the sizes of the wheel loads born by the four wheels so as to perform corresponding balance processing.
In addition, in this embodiment, it should be further noted that the step of calculating, one by one, the total wheel load applied to each of the wheels by the plurality of asymmetric arrangement modules includes:
The expression for calculating the total wheel load applied to the left front wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is lf Representing the total wheel load on the left front wheel, n representing the number of asymmetrically arranged modules;
the expression for calculating the total wheel load applied to the left rear wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is lr Representing the total wheel load on the left rear wheel;
the expression for calculating the total wheel load applied to the right front wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is rf Representing the total wheel load on the right front wheel;
the expression for calculating the total wheel load applied to the right rear wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is rr Indicating the total wheel load on the right rear wheel.
In addition, in the present embodiment, since whether the vehicle has equal height or not is determined specifically by the gravity generated on the two sides of the vehicle, it is necessary to avoid the occurrence of the phenomenon of unequal heights on the two sides of the vehicle by adjusting the gravity generated on the two sides of the vehicle on the premise that the suspension system of each wheel is identical.
Based on this, on the premise that each asymmetric arrangement module is at the initial arrangement position, the embodiment further calculates the total wheel load applied to the current four wheels by the current asymmetric arrangement modules, that is, calculates the total wheel load suffered by each wheel through the algorithm. On the basis, the total wheel load applied to the wheels on the left side and the right side of the vehicle is balanced, so that the heights of the left side and the right side of the vehicle can be equal.
In this embodiment, it should be noted that the step of adjusting the arrangement positions of the plurality of asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the total wheel load includes:
respectively calculating a first total wheel load born by the right side of the three-dimensional shell model of the whole vehicle and a second total wheel load born by the left side of the three-dimensional shell model of the whole vehicle, and comparing the sizes of the first total wheel load and the second total wheel load;
if the first total wheel load is detected to be equal to the second total wheel load, the arrangement positions of a plurality of asymmetric arrangement modules in the whole vehicle three-dimensional shell model are not adjusted;
if the first total wheel load and the second total wheel load are detected to be unequal, calculating a target difference value between the first total wheel load and the second total wheel load, and adjusting the arrangement positions of a plurality of asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the target difference value.
In this embodiment, it should be noted that, after the total wheel loads respectively received by the four wheels are calculated through the above steps, the total wheel load of the left front wheel is compared with the total wheel load of the right front wheel in real time, and the total wheel load of the left rear wheel is compared with the total wheel load of the right rear wheel, that is, the magnitude between the first total wheel load and the second total wheel load is compared.
Further, if the comparison results are equal, the arrangement positions of the asymmetric arrangement modules in the whole vehicle three-dimensional shell model are not required to be adjusted, and if the comparison results are not equal, the corresponding difference is required to be calculated, namely, the target difference between the first total wheel load and the second total wheel load is calculated, and then the arrangement positions of the current plurality of asymmetric arrangement modules in the current whole vehicle three-dimensional shell model are further adjusted according to the target difference.
In this embodiment, it should be noted that the step of adjusting the arrangement positions of the plurality of asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the target difference value includes:
respectively calculating weight deviation values of the left side and the right side of each asymmetric arrangement module relative to the center of the three-dimensional shell model of the whole vehicle, and finding out a target weight deviation value matched with the target deviation value;
and setting an asymmetric arrangement module corresponding to the target weight deviation value as an adjustment target, and adjusting the arrangement position of the adjustment target in the whole vehicle three-dimensional shell model.
In this embodiment, it should be noted that, for convenience in adjustment, it is necessary to further calculate weight deviation values of the current plurality of asymmetric arrangement modules with respect to the left and right sides of the center of the three-dimensional shell model of the whole vehicle, that is, each asymmetric arrangement module corresponds to one weight deviation value, based on this, a target weight deviation value adapted to the target deviation value is found, for example, the current target deviation value is "50N", and the found target weight deviation value is "49N", which are most adapted, so that the asymmetric arrangement module corresponding to the target weight deviation value may be set as an adjustment target, and the arrangement position of the current adjustment target in the three-dimensional shell model of the whole vehicle may be further adjusted, thereby completing the balancing process of the wheel load.
It should be noted that, for the sake of brevity, the method according to the second embodiment of the present invention, which implements the same principle and some of the technical effects as the first embodiment, is not mentioned here, and reference is made to the corresponding content provided by the first embodiment.
In summary, the vehicle module arrangement method provided by the embodiment of the invention can effectively avoid the phenomenon of unequal height of the vehicle body postures at the left side and the right side of the vehicle, improves the research and development efficiency of the vehicle, and correspondingly improves the use experience of users.
Referring to fig. 3, a vehicle module arrangement system according to a third embodiment of the present invention is shown, the system including:
the acquisition module 12 is used for constructing a whole vehicle three-dimensional shell model based on a preset program and acquiring a plurality of vehicle modules matched with the whole vehicle three-dimensional shell model;
the splitting module 22 is configured to obtain arrangement information corresponding to the plurality of vehicle modules, and split the plurality of vehicle modules into a symmetrical arrangement module and an asymmetrical arrangement module according to the arrangement information;
the calculating module 32 is configured to collect weight information corresponding to each of the asymmetric arrangement modules, and calculate a wheel load allocated to each wheel of the whole vehicle three-dimensional shell model by each asymmetric arrangement module according to the weight information;
The adjusting module 42 is configured to calculate total wheel loads applied to each wheel by the plurality of asymmetric arrangement modules one by one, and adjust arrangement positions of the plurality of asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the total wheel loads, so that the total wheel loads on the left and right sides in the whole vehicle three-dimensional shell model are equal or similar.
In the vehicle module arrangement system, the splitting module 22 is specifically configured to:
extracting whole vehicle boundary condition information and module performance requirement information contained in the arrangement information, and analyzing the initial arrangement position of each vehicle module in the whole vehicle three-dimensional shell model according to the whole vehicle boundary condition information and the module performance requirement information;
extracting a central axis corresponding to the whole vehicle three-dimensional shell model, and detecting the relative position relationship between the initial arrangement position corresponding to each vehicle module and the central axis one by one, wherein the relative position relationship comprises a symmetrical arrangement relationship and an asymmetrical arrangement relationship;
if the relative position relationship between the initial arrangement position corresponding to the vehicle module and the central axial surface is detected to be the symmetrical arrangement relationship, judging that the current vehicle module is the symmetrical arrangement module;
And if the relative position relation between the initial arrangement position corresponding to the vehicle module and the central axial surface is detected to be the asymmetric arrangement relation, judging that the current vehicle module is the asymmetric arrangement module.
In the vehicle module arrangement system, the computing module 32 is specifically configured to:
constructing a corresponding whole vehicle coordinate system based on the whole vehicle three-dimensional shell model, and respectively detecting the corresponding centroid coordinates of each asymmetric arrangement module in the whole vehicle coordinate system;
collecting the weight information corresponding to each asymmetric arrangement module, and constructing a mapping relation between the weight information and the centroid coordinates;
and calculating the wheel load distributed to each wheel by each asymmetric arrangement module according to the weight information and the mass center coordinates, wherein an X axis of the whole vehicle coordinate system is positioned at the center of a front wheel, a Y axis is positioned at the center axial surface, and a Z axis is positioned at the upper plane of the frame.
In the vehicle module arrangement system, the expression of calculating the wheel load of each asymmetric arrangement module distributed on the left front wheel is as follows:
wherein m is alf Representing the wheel load of module a on the left front wheel, m a Representing the weight of module a, W represents the track width, X a And Y a Represents the abscissa and ordinate of the centroid of module a, L represents the wheelbase, X o2 An abscissa representing the left rear wheel center;
the expression for calculating the wheel load distributed on the left rear wheel by each asymmetric arrangement module is as follows:
wherein m is alr Representing the wheel load of module a acting on the left rear wheel, X o1 An abscissa representing the left front wheel center;
the expression for calculating the wheel load distributed on the right front wheel by each asymmetric arrangement module is as follows:
wherein m is arf Representing the wheel load of module a acting on the right front wheel;
the expression for calculating the wheel load distributed on the right rear wheel by each asymmetric arrangement module is as follows:
wherein m is arr Representing the wheel load of module a acting on the right rear wheel.
In the vehicle module arrangement system, the step of calculating the total wheel load applied to each wheel by the asymmetric arrangement modules one by one includes:
the expression for calculating the total wheel load applied to the left front wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is lf Representing the total wheel load on the left front wheel, n representing the number of asymmetrically arranged modules;
the expression for calculating the total wheel load applied to the left rear wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is lr Representing the total wheel load on the left rear wheel;
the expression for calculating the total wheel load applied to the right front wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is rf Representing the total wheel load on the right front wheel;
the expression for calculating the total wheel load applied to the right rear wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is rr Indicating the total wheel load on the right rear wheel.
In the above vehicle module arrangement system, the adjusting module 42 is specifically configured to:
respectively calculating a first total wheel load born by the right side of the three-dimensional shell model of the whole vehicle and a second total wheel load born by the left side of the three-dimensional shell model of the whole vehicle, and comparing the sizes of the first total wheel load and the second total wheel load;
if the first total wheel load is detected to be equal to the second total wheel load, the arrangement positions of a plurality of asymmetric arrangement modules in the whole vehicle three-dimensional shell model are not adjusted;
if the first total wheel load and the second total wheel load are detected to be unequal, calculating a target difference value between the first total wheel load and the second total wheel load, and adjusting the arrangement positions of a plurality of asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the target difference value.
In the above vehicle module arrangement system, the adjusting module 42 is specifically further configured to:
Respectively calculating weight deviation values of the left side and the right side of each asymmetric arrangement module relative to the center of the three-dimensional shell model of the whole vehicle, and finding out a target weight deviation value matched with the target deviation value;
and setting an asymmetric arrangement module corresponding to the target weight deviation value as an adjustment target, and adjusting the arrangement position of the adjustment target in the whole vehicle three-dimensional shell model.
A fourth embodiment of the present invention provides a computer including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the vehicle module arrangement method provided in the above embodiments when executing the computer program.
A fifth embodiment of the present invention provides a readable storage medium having a computer program stored thereon, wherein the program, when executed by a processor, implements the vehicle module arrangement method provided by the above embodiment.
In summary, the vehicle module arrangement method, system, computer and readable storage medium provided by the embodiments of the present invention can effectively avoid the phenomenon of unequal vehicle body postures on the left and right sides of the vehicle, improve the development efficiency of the vehicle, and correspondingly improve the use experience of the user.
The above-described respective modules may be functional modules or program modules, and may be implemented by software or hardware. For modules implemented in hardware, the various modules described above may be located in the same processor; or the above modules may be located in different processors in any combination.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (9)
1. A vehicle module arrangement method, characterized in that the method comprises:
Constructing a whole vehicle three-dimensional shell model based on a preset program, and acquiring a plurality of vehicle modules matched with the whole vehicle three-dimensional shell model;
obtaining arrangement information corresponding to the vehicle modules respectively, and splitting the vehicle modules into symmetrical arrangement modules and asymmetrical arrangement modules according to the arrangement information;
acquiring weight information corresponding to each asymmetric arrangement module, and calculating the wheel load distributed to each wheel of the whole vehicle three-dimensional shell model by each asymmetric arrangement module according to the weight information;
calculating the total wheel load of a plurality of asymmetric arrangement modules applied to each wheel one by one, and adjusting the arrangement positions of the asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the total wheel load so as to make the sizes of the total wheel loads on the left side and the right side in the whole vehicle three-dimensional shell model equal or similar;
the step of splitting the plurality of vehicle modules into a symmetrical arrangement module and an asymmetrical arrangement module according to the arrangement information comprises the steps of:
extracting whole vehicle boundary condition information and module performance requirement information contained in the arrangement information, and analyzing the initial arrangement position of each vehicle module in the whole vehicle three-dimensional shell model according to the whole vehicle boundary condition information and the module performance requirement information;
Extracting a central axis corresponding to the whole vehicle three-dimensional shell model, and detecting the relative position relationship between the initial arrangement position corresponding to each vehicle module and the central axis one by one, wherein the relative position relationship comprises a symmetrical arrangement relationship and an asymmetrical arrangement relationship;
if the relative position relationship between the initial arrangement position corresponding to the vehicle module and the central axial surface is detected to be the symmetrical arrangement relationship, judging that the current vehicle module is the symmetrical arrangement module;
and if the relative position relation between the initial arrangement position corresponding to the vehicle module and the central axial surface is detected to be the asymmetric arrangement relation, judging that the current vehicle module is the asymmetric arrangement module.
2. The vehicle module arrangement method according to claim 1, characterized in that: the step of calculating the wheel load of each of the asymmetrically arranged modules distributed to each wheel of the whole vehicle three-dimensional shell model according to the weight information comprises the following steps:
constructing a corresponding whole vehicle coordinate system based on the whole vehicle three-dimensional shell model, and respectively detecting the corresponding centroid coordinates of each asymmetric arrangement module in the whole vehicle coordinate system;
Collecting the weight information corresponding to each asymmetric arrangement module, and constructing a mapping relation between the weight information and the centroid coordinates;
and calculating the wheel load distributed to each wheel by each asymmetric arrangement module according to the weight information and the mass center coordinates, wherein an X axis of the whole vehicle coordinate system is positioned at the center of a front wheel, a Y axis is positioned at the center axial surface, and a Z axis is positioned at the upper plane of the frame.
3. The vehicle module arrangement method according to claim 2, characterized in that: the expression for calculating the wheel load distributed on the left front wheel by each asymmetric arrangement module is as follows:
wherein m is alf Representing the wheel load of module a on the left front wheel, m a Representing the weight of module a, W represents the track width, X a And Y a Represents the abscissa and ordinate of the centroid of module a, L represents the wheelbase, X o2 An abscissa representing the left rear wheel center;
the expression for calculating the wheel load distributed on the left rear wheel by each asymmetric arrangement module is as follows:
wherein m is alr Representing the wheel load of module a acting on the left rear wheel, X o1 An abscissa representing the left front wheel center;
the expression for calculating the wheel load distributed on the right front wheel by each asymmetric arrangement module is as follows:
wherein m is arf Representing the wheel load of module a acting on the right front wheel;
the expression for calculating the wheel load distributed on the right rear wheel by each asymmetric arrangement module is as follows:
wherein m is arr Representing the wheel load of module a acting on the right rear wheel.
4. A vehicle module arrangement method according to claim 3, characterized in that: the step of calculating the total wheel load applied to each wheel by the plurality of asymmetrically arranged modules one by one comprises the following steps:
the expression for calculating the total wheel load applied to the left front wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is lf Representing the total wheel load on the left front wheel, n representing the number of asymmetrically arranged modules;
the expression for calculating the total wheel load applied to the left rear wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is lr Representing the total wheel load on the left rear wheel;
the expression for calculating the total wheel load applied to the right front wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is rf Representing the total wheel load on the right front wheel;
the expression for calculating the total wheel load applied to the right rear wheel by a plurality of asymmetric arrangement modules is as follows:
wherein m is rr Indicating the total wheel load on the right rear wheel.
5. The vehicle module arrangement method according to claim 1, characterized in that: the step of adjusting the arrangement positions of the plurality of asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the total wheel load comprises the following steps:
Respectively calculating a first total wheel load born by the right side of the three-dimensional shell model of the whole vehicle and a second total wheel load born by the left side of the three-dimensional shell model of the whole vehicle, and comparing the sizes of the first total wheel load and the second total wheel load;
if the first total wheel load is detected to be equal to the second total wheel load, the arrangement positions of a plurality of asymmetric arrangement modules in the whole vehicle three-dimensional shell model are not adjusted;
if the first total wheel load and the second total wheel load are detected to be unequal, calculating a target difference value between the first total wheel load and the second total wheel load, and adjusting the arrangement positions of a plurality of asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the target difference value.
6. The vehicle module arrangement method according to claim 5, characterized in that: the step of adjusting the arrangement positions of the plurality of asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the target difference value comprises the following steps:
respectively calculating weight deviation values of the left side and the right side of each asymmetric arrangement module relative to the center of the three-dimensional shell model of the whole vehicle, and finding out a target weight deviation value matched with the target deviation value;
And setting an asymmetric arrangement module corresponding to the target weight deviation value as an adjustment target, and adjusting the arrangement position of the adjustment target in the whole vehicle three-dimensional shell model.
7. A vehicle module arrangement system for implementing the vehicle module arrangement method according to any one of claims 1 to 6, the system comprising:
the acquisition module is used for constructing a whole vehicle three-dimensional shell model based on a preset program and acquiring a plurality of vehicle modules matched with the whole vehicle three-dimensional shell model;
the splitting module is used for acquiring arrangement information corresponding to the vehicle modules respectively and splitting the vehicle modules into a symmetrical arrangement module and an asymmetrical arrangement module according to the arrangement information;
the calculation module is used for collecting weight information corresponding to each asymmetric arrangement module respectively and calculating the wheel load distributed to each wheel of the whole vehicle three-dimensional shell model by each asymmetric arrangement module according to the weight information;
the adjusting module is used for calculating the total wheel load which is respectively applied to each wheel by the asymmetric arrangement modules one by one, and adjusting the arrangement positions of the asymmetric arrangement modules in the whole vehicle three-dimensional shell model according to the total wheel load so as to enable the sizes of the total wheel loads on the left side and the right side in the whole vehicle three-dimensional shell model to be equal or similar.
8. A computer comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the vehicle module arrangement method according to any one of claims 1 to 6 when executing the computer program.
9. A readable storage medium having stored thereon a computer program, characterized in that the program, when executed by a processor, implements the vehicle module arrangement method according to any one of claims 1 to 6.
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| CN106446370A (en) * | 2016-09-09 | 2017-02-22 | 北京汽车股份有限公司 | Method and apparatus for calculating rotational inertia of multi-body dynamic model and vehicle body model |
| WO2020249239A1 (en) * | 2019-06-14 | 2020-12-17 | Volvo Truck Corporation | A method for validating a model associated with vehicle dynamics |
| CN115891570A (en) * | 2022-11-24 | 2023-04-04 | 江西五十铃汽车有限公司 | Automatic adjusting method and system for automobile air conditioner, computer and readable storage medium |
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