Multifunctional motor vehicle detecting instrument and detecting method thereof

A technology for motor vehicles and measuring instruments, applied in force/torque/power measuring instruments, measuring devices, wheel testing, etc., can solve problems such as error-prone data, difficult steering wheel positioning, time-consuming, etc., to strengthen supervision and management, prevent and the effect of reducing traffic accidents and improving detection capabilities

Active Publication Date: 2014-06-25
合肥市强科达科技开发有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The domestic front wheel angle measurement devices include automobile front wheel steering angle inspection bench and four-wheel alignment. The inspection station usually uses the automobile front wheel steering angle inspection bench to measure the front wheel steering angle. During the operation, the inspection station needs tire alignment. , steering wheel positioning difficulties and other defects, troublesome opera

Method used

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  • Multifunctional motor vehicle detecting instrument and detecting method thereof
  • Multifunctional motor vehicle detecting instrument and detecting method thereof
  • Multifunctional motor vehicle detecting instrument and detecting method thereof

Examples

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example 1

[0052] Example 1: (drop test)

[0053] Install the on-board attitude sensor above the corresponding position where the suspension characteristics need to be measured, install a drop test stand in front of the vehicle, and drive the vehicle slowly to the drop test stand, relying on the inertia of the vehicle, and freely fall; The car is raised to a certain height, and then the support mechanism is suddenly released, and the car falls to produce free vibration. The vibration data of the vehicle body is collected by measuring the vehicle attitude sensor, and the suspension characteristic curve is obtained to evaluate the working performance of the vehicle suspension device.

example 2

[0054] Example 2: (Crush body test)

[0055] The invention proposes a vehicle suspension characteristic method using a vehicle-mounted attitude sensor. The vehicle-mounted attitude collector is fixed at any position on the vehicle body, and a portable pressure gauge is used to manually apply pressure to the corresponding parts of the vehicle. When the pressure reaches the specified pressure, suddenly Unclamp, the vehicle-mounted attitude sensor measures the process of gradually attenuating the vehicle frequency, and the change of the vibration curve of the vehicle body can be measured, and the suspension characteristics are calculated by the microprocessor. This method is not limited by the site, and different suspension can be obtained It is beneficial to the overall study of vehicle suspension characteristics.

[0056] If it is necessary to measure the suspension characteristics of each wheel of the vehicle, the attitude sensor can be fixed on the suspension point of each wh...

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Abstract

The invention provides a multifunctional motor vehicle detecting instrument and a detecting method thereof, and belongs to vehicle-mounted fault diagnosis systems in the automobile electronic technology. The multifunctional motor vehicle detecting instrument is mainly composed of two parts. The first part is wheel posture collectors, each wheel posture collector is mainly composed of an MEMS micromechanics inertia navigation module, a microprocessor, a wireless Bluetooth sending module, a special clamp and a wheel in a fixing mode, and each wheel is provided with one wheel posture collector. The second part is a portable main machine instrument which is mainly composed of a wireless Bluetooth wheel signal receiving module, a vehicle-mounted posture sensor, a pedal force collecting module, a microprocessor, a GPS communication module, a 3G/GPRS communication module, a displayer, a printer, a vehicle-mounted power source and a vehicle-mounted power charger. The obvious advantages of safety, accuracy, convenience and high efficiency of the multifunctional motor vehicle detecting instrument are achieved in the using process, and important significance is achieved on the aspects of maintaining road traffic orders and preventing and reducing traffic accidents.

Description

Technical field: [0001] The invention belongs to a vehicle-mounted fault diagnosis system in the automotive electronics technology, and specifically relates to a portable instrument for measuring various technical performances of the motor vehicle through inertial navigation, GPS, and 3G / GPRS communication technologies during the road test of the motor vehicle. Background technique: [0002] The braking performance of a motor vehicle is one of the important performances of a motor vehicle, which is directly related to the driving safety of the motor vehicle. At the same time, good braking performance is also a prerequisite for increasing the speed of motor vehicles. Without good and reliable braking performance as a guarantee, it is impossible to talk about high-speed driving of motor vehicles. With the rapid development of the automobile industry, more and more new technologies, especially electronic technologies, have been applied to automobile braking systems. Braking sy...

Claims

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Application Information

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IPC IPC(8): G01M17/007G01M17/013G01L5/28
Inventor 程炎星麻伟民贺永平杜颖杨华西王金斌廖小鹏
Owner 合肥市强科达科技开发有限公司
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