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Load decomposing method and device based on basic vehicle model

A vehicle type and load technology, applied in the field of load decomposition based on basic vehicle models, can solve the problems of increasing development cycle, manpower and material costs, saving manpower costs, reducing data collection time, and shortening the development cycle.

Active Publication Date: 2016-07-20
BAIC MOTOR CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a load decomposition method and device based on a basic vehicle type, to solve the process of sensor arrangement and signal collection for all vehicle types in the prior art, resulting in increased manpower and material costs, The problem with growing development cycles

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  • Load decomposing method and device based on basic vehicle model
  • Load decomposing method and device based on basic vehicle model
  • Load decomposing method and device based on basic vehicle model

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Experimental program
Comparison scheme
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Embodiment 1

[0022] figure 1 It is a flow chart of the load decomposition method based on the basic vehicle model provided in Embodiment 1 of the present invention. The execution subject of the decomposition method in this embodiment may be a computer, an iPad and other devices with logic calculation and storage functions. Such as figure 1 As shown, the load decomposition method based on the basic vehicle model provided in this embodiment includes:

[0023] Step 101, obtaining the chassis structure parameters of the decomposed vehicle type.

[0024] Wherein, optionally, the chassis structural parameters include the structural parameters of the suspension, for example, parameters such as the weight of the suspension, the assembly clearance between the suspension and other components, stiffness, etc., and also include the wheelbase parameters, wheelbase parameters, and tires of the tires. Structural parameters, wherein the structural parameters of the tire include the weight of the tire, t...

Embodiment 2

[0036] This embodiment is a further explanation to the above-mentioned embodiment, figure 2 The flow chart of the load decomposition method based on the basic vehicle model provided by Embodiment 2 of the present invention, such as figure 2 As shown, the load decomposition method based on the basic vehicle model provided in this embodiment includes:

[0037] Step 201, obtaining the chassis structure parameters of the decomposed vehicle model.

[0038] Step 202, according to the chassis structure parameters, obtain the load-decomposed road spectrum of the base model that is the same as the chassis structure parameters, the road spectrum includes the displacement signal of the height direction of the front tire, the displacement signal of the height direction of the rear tire and The steering drive signal in the height direction of the front tire.

[0039] The road surface spectrum is obtained by load decomposition of the basic vehicle model. The input signals of the load de...

Embodiment 3

[0052] This embodiment provides a load decomposition device based on a basic vehicle type, which is used to implement the load decomposition method based on a basic vehicle type in the above embodiment, and the device can be a computer, an iPad, and other devices with logic calculation and storage functions. Figure 4 The schematic diagram of the structure of the load splitting device based on the basic vehicle model provided by Embodiment 3 of the present invention, as shown in Figure 4 As shown, the load decomposition device based on the basic vehicle type includes: a first acquisition module 301 , a second acquisition module 302 , a third acquisition module 303 and a load decomposition module 304 .

[0053] The first acquisition module 301 is used to acquire the chassis structure parameters of the decomposed vehicle type.

[0054] Optionally, the chassis structural parameters include the structural parameters of the suspension, for example, the weight of the suspension, th...

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Abstract

The invention discloses a load decomposing method and device based on a basic vehicle model.The method comprises the steps that chassis structure parameters of a decomposed vehicle model are obtained; a road surface spectrum of load decomposing of the basic vehicle model which meets the chassis structure parameters is obtained according to the chassis structure parameters, wherein the road surface spectrum comprises displacement signals of front tires in the height directions, displacement signals of rear tires in the height directions and steering driving signals of the front tires in the height directions; a multi-body dynamic model of the decomposed vehicle model is obtained; load decomposing is conducted on the decomposed vehicle according to the road surface spectrum and the multi-body dynamic model.According to the load decomposing method and device based on the basic vehicle model, load decomposing on the decomposed vehicle model is completed according to the road surface spectrum of the basic model and the multi-body dynamics model of the decomposed vehicle model, a sensor does not need to be arranged to conduct actual road load information collection on the decomposed vehicle model, and therefore the data collection time can be shortened, the labor cost is reduced, and the development cycle is shortened.

Description

technical field [0001] The invention relates to computer-aided design, in particular to a load decomposition method and device based on a basic vehicle type. Background technique [0002] Load decomposition technology is a computer virtual iterative technology based on multi-body model, which can be used to evaluate the structural fatigue life of automobiles. The six-component force test is carried out in the heart, and the load extraction of the connection points of the components is carried out through virtual iteration. [0003] However, the load decomposition technology in the prior art requires a lot of time for the arrangement of sensors and signal collection for all models, which increases the cost of manpower and material resources, and also increases the development cycle. . Contents of the invention [0004] The purpose of the present invention is to provide a load decomposition method and device based on a basic vehicle type, to solve the process of sensor arr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/15
Inventor 高雪玉张立玲黄黎
Owner BAIC MOTOR CORP LTD