Static measuring method and device for centroid position of vehicle

Abstract

A static measurement method and device for the centroid position of a vehicle belong to the technical field of vehicle centroid measurement. The invention aims to solve the problem that the action point of force borne by a vehicle cannot be accurately measured in the prior art. According to the static measurement device for the centroid position of a vehicle, the lower parts of symmetrical parallelogram mechanisms are connected to a base, and the upper parts of the symmetrical parallelogram mechanisms and a measurement platform are connected by measurement platform hinges. Four wheel force measurement boards are arranged in four empty slots of the measurement platform. The wheel force measurement boards are placed on the tops of the symmetrical parallelogram mechanisms, and four force sensors are evenly distributed between the wheel force measurement boards and the symmetrical parallelogram mechanisms. A tilt angle sensor is installed on the bottom of the measurement platform. The upper end of an electric cylinder is connected with the measurement platform, and the lower end of the electric cylinder is supported by the base. The measurement platform and the base are connected by base hinges. The positions of the stress points of the wheels on the wheel force measurement boards can be calculated according to the measured values of the force sensors, and thus, the spatial coordinates of the stress points of the wheels can be obtained. The measurement error caused by the inaccurate stress positions of the wheels is avoided, and the measurement accuracy is improved.

Description

technical field [0001] The invention belongs to the technical field of vehicle center of mass measurement, and aims at a device designed for measuring the position of the center of mass of the vehicle and proposes a static measurement method for the position of the center of mass of the vehicle. Background technique [0002] The position of the center of mass of the vehicle is divided into a position in the horizontal direction and a position in the vertical direction, and the position in the vertical direction is called the height of the center of mass. The centroid measurement method is divided into static measurement method and dynamic measurement method. The static measurement method is based on the principle of static moment balance, and the dynamic measurement method uses dynamic theory for measurement. Dynamic measurement methods include compound pendulum method, moment of inertia method, dynamic balance method, etc. Static measurement methods, such as suspension me...

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Problems solved by technology

[0004] In order to solve the problem of measurement error caused by the inability to accurately measure the force point of the vehicle in the prior art, the present invention proposes a static measurement method and device for the position of the center of mass of the vehicle, improves the measurement accuracy of the center of mass of the vehicle, and has a wide range of applications

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