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A multifunctional motor vehicle measuring instrument and detection method

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

Active Publication Date: 2017-08-08
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

[0011] The domestic front wheel angle measuring 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. Due to the operation process, the inspection station needs tire alignment. , steering wheel positioning difficulties and other defects, troublesome operation, time-consuming, error-prone data and other defects, the present invention proposes a vehicle-mounted attitude sensor, which is fixed on the front steering wheel, and the method of measuring the angle of the tire to measure the maximum steering of the front wheel Angle and steering real-time synchronization, this method can not be limited by the site, especially suitable for the measurement of front double steering wheels

Method used

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  • A multifunctional motor vehicle measuring instrument and detection method
  • A multifunctional motor vehicle measuring instrument and detection method
  • A multifunctional motor vehicle measuring instrument and detection method

Examples

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Effect test

example 1

[0057] Example 1: (drop test)

[0058] 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, drive the vehicle slowly to the drop test stand, rely 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

[0059] Example 2: (Crush body test)

[0060] The present invention proposes a vehicle suspension characteristic method using a vehicle-mounted attitude sensor. The vehicle-mounted attitude collector is fixed on any position of 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 vehicle frequency attenuation gradually, 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 suspensions can be obtained. It is beneficial to the overall study of vehicle suspension characteristics.

[0061] 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 e...

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Abstract

A multifunctional motor vehicle measuring instrument and detection method, belonging to the on-board fault diagnosis system in the automotive electronics technology, mainly consists of two parts, the first part is a wheel attitude collector, mainly composed of a MEMS micromechanical inertial navigation module, a microprocessor, The wireless bluetooth transmission module is composed of a special fixture and fixed wheels. Each wheel is equipped with a wheel attitude collector. The second part is a portable host instrument, which is mainly composed of a wireless bluetooth wheel signal receiving module, a vehicle attitude sensor, a pedal force acquisition module, Processor, GPS communication module, 3G / GPRS communication module, display, printer, vehicle power supply, vehicle power supply charger. Lita is characterized by safety, accuracy, convenience, and high efficiency in use, and is of great significance for maintaining road traffic order, preventing and reducing traffic accidents.

Description

[0001] Technical field: [0002] 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. [0003] Background technique: [0004] 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 syste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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