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Vehicle centroid position measuring device and method

A measurement method and a technology of a measurement device, which are applied in the field of vehicle measurement and can solve problems such as high cost, complicated equipment, and complicated operation process

Active Publication Date: 2016-09-07
DALIAN ROILAND SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The position of the center of mass of the vehicle is an important performance indicator that affects the safety and handling of the vehicle, and has always been one of the important measurement parameters in the process of vehicle product development and experimentation. Too high, the operation process is complicated and has certain limitations on the vehicle type

Method used

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  • Vehicle centroid position measuring device and method
  • Vehicle centroid position measuring device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, this embodiment provides a vehicle center-of-mass position measuring device, including a measurement module and a height bracket, and the height bracket is respectively placed under a group of parallel measurement modules. Two measurement modules; another group of measurement modules is set on a horizontal surface, such as on the ground or on a horizontal platform, and this group of measurement modules is the two measurement modules under the rear wheels; Wheel weight, adjust the base bracket in the measurement module so that the four wheels of the car are on a plane; the height bracket is used to prop up the front wheel to a certain height Δh. According to the weight value displayed by the display device and the height value of the front wheel on the height bracket, the force system balance equation and the moment balance equation principle are used to calculate the center of mass position of the vehicle by using the four-point dynamometer me...

Embodiment 2

[0040] This embodiment provides a method for measuring the position of the center of mass of a vehicle, including:

[0041] Step 1: According to different models, the wheelbase and wheelbase are different. Knowing the wheelbase, wheelbase and vehicle weight of the vehicle, according to the wheelbase and wheelbase of the model to be tested, first place the four measurement modules 1 Place the vehicle on the horizontal plane according to the wheelbase and wheelbase of the vehicle under test, so that the vehicle under test runs at a constant speed on the horizontal plane, and slowly drives to the four base supports 5 via the transition bracket 4, as shown in FIG. figure 2 As shown, when the front wheels and rear wheels of the vehicle under test are all on the base support 5, quickly step on the brake pedal to brake;

[0042] The second step: measure the force situation of the four wheels of the automobile at this time by the sensors 6 respectively installed in the measurement mo...

Embodiment 3

[0046] As a further supplement to Example 2, the X and Y values ​​of the center of gravity of the vehicle are measured horizontally. First, measure the value of AB on the X axis and the value of AC on the Y axis. Since AB=CD and AC=BD, four force-measuring points are fixed. Form a rectangle and ABCD is on the same level, according to ∑M X =0;∑M Y = 0 can be drawn,

[0047] X=[(F A +F C )-(F B +F D )]×AB / (2G),

[0048] Y=[(F A +F B )-(F C +F D )]×AC / (2G),

[0049] The wheelbase is AB, the wheelbase is AC, the vehicle quality is G, and the measurable value is F A , F B , F C , F D ; where F A , F C is the weight of the front wheel, F B , F D is the weight of the rear wheel.

[0050]After the X and Y values ​​of the center of gravity of the vehicle are measured, the inclination measurement method is used to test the Z value of the center of gravity of the vehicle. The vehicle is required to be on a plane, and the entire plane should rotate around a horizontal a...

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Abstract

The invention relates to a vehicle centroid position measuring device and a vehicle centroid position measuring method. The vehicle centroid position measuring device includes measurement modules and height brackets; the height brackets are arranged below one group of parallel measurement modules; the other group of measurement modules are arranged on the ground or a horizontal table; the measurement modules are used for measuring the weight of the front wheel and rear wheels of a braked vehicle; based brackets in the measurement modules are adjusted, so that the four wheels of the vehicle can be in the same plane; and the height brackets are used for supporting the wheels by a certain height. With the vehicle centroid position measuring device and method of the invention adopted, complex mechanical structures are not required, and other measurement modules are not required to be adopted additionally, and vehicles with different wheel treads and wheelbases can be measured.

Description

technical field [0001] The invention belongs to the technical field of vehicle measurement, in particular to a vehicle center of mass position measurement device and method. Background technique [0002] The position of the center of mass of the vehicle is an important performance indicator that affects the safety and handling of the vehicle, and has always been one of the important measurement parameters in the process of vehicle product development and experimentation. It is too high, the operation process is complicated, and it has certain limitations on the vehicle type. Contents of the invention [0003] In order to solve the current limitation of measuring the center of mass of the vehicle due to its complexity, high cost, and the limitation of measuring the center of mass of different vehicle models, the present invention provides a device and method for measuring the position of the center of mass of the vehicle, which can measure vehicles with different wheelbases...

Claims

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Application Information

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IPC IPC(8): G01M1/12
CPCG01M1/122
Inventor 田雨农金谣
Owner DALIAN ROILAND SCI & TECH CO LTD
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