Vehicle three-dimensional centroid detection method

A detection method and technology of three-dimensional center of mass, which are applied in measurement devices, testing of machine/structural components, static/dynamic balance testing, etc. Effect

Active Publication Date: 2019-12-20
JIANGLU MACHINERY & ELECTRONICS GROUP
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AI Technical Summary

Problems solved by technology

The design of the vehicle, the load, and the high-speed centrifugal curve movement will all form an asymmetric structure and uneven quality. These factors will cause the center of gravity to deviate from the geometric center of the object, which is extremely dangerous when the vehicle is running at high speed.

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  • Vehicle three-dimensional centroid detection method
  • Vehicle three-dimensional centroid detection method
  • Vehicle three-dimensional centroid detection method

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Embodiment Construction

[0067] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0068] like figure 1 As shown, a vehicle three-dimensional centroid detection method includes the following steps:

[0069] Step 1: Aiming at the problem of the stability of the vehicle affected by the position of the center of mass during motion, deduce the formula for calculating the center of gravity of complex geometry in principle, and establish a mathematical model.

[0070] The derivation process of the mathematical model in step 1 is:

[0071] like figure 2 As shown, remember that the contact points between the four wheels of the vehicle and the ground are a, b, c, d, assuming that point E is the three-dimensional position point of the center of mass of the vehicle object, the direction of b and c is the coordinate X axis, and the direction of a and b is is the coordinate Y-axis, and the three-dimensional Cartesian coordinate system of the v...

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Abstract

The invention discloses a vehicle three-dimensional centroid detection method, which comprises the following steps of: aiming at the problem that the stability of a vehicle is influenced by a centroidposition in the moving process, deducing a gravity center calculation formula of a complex geometry in principle, and establishing a mathematical model; taking contact points of four wheels of the vehicle and the ground as measuring points according to the established mathematic model, establishing coordinate positions based on the measuring points, detecting stress at stress points, deducing a gravity center three-dimensional coordinate position calculation formula and establishing a centroid detection model according to a principle that a moment vector of three-dimensional coordinates is '0', and giving force measuring points and coordinate values; and acquiring various parameters of the vehicle in the walking operation by means of sensors, transmitting the parameters to a computer simultaneously, and outputting signals to adjust walking operation parts of the vehicle based on a centroid position detected according to the centroid detection model and the acquired parameters by meansof the computer, and realizing steady-state driving of the vehicle. The vehicle three-dimensional centroid detection method can basically meet actual use requirements and design objectives.

Description

technical field [0001] The invention relates to a method for detecting a three-dimensional center of mass of a vehicle. Background technique [0002] At present, the speed increase of highway vehicles has higher and higher requirements for vehicle dynamic stability and stability. How to control and judge and ensure a reasonable center of gravity in design, manufacture, and actual vehicle operation is very important. . The design of the vehicle, the load, and the high-speed centrifugal curve movement will all form an asymmetric structure and uneven quality. These factors will cause the center of gravity to deviate from the geometric center of the object, which is extremely dangerous when the vehicle is running at high speed. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a vehicle three-dimensional centroid detection method with simple algorithm and reliable detection. [0004] The technical solution of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M1/12
CPCG01M1/122
Inventor 成钢杨阳野妙玲赵解来
Owner JIANGLU MACHINERY & ELECTRONICS GROUP
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