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A calibration device for a high-precision automobile diesel engine tachometer

A technology of automobile diesel engine and calibration device, which is applied in the testing/calibration of speed/acceleration/shock measuring equipment, measuring device, speed/acceleration/shock measurement, etc., which can solve the difficulty of instrument calibration, fast and effective calibration and other issues, to achieve the effects of small signal transmission error, friendly and perfect interactive platform, system visualization and real-time operation

Active Publication Date: 2016-07-06
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The calibration instrument must first have a standard signal source. The signal provided must be very stable, high-precision, and easy to set the speed value. Otherwise, it will be impossible to calibrate the instrument, which brings difficulties to fast and effective calibration.

Method used

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  • A calibration device for a high-precision automobile diesel engine tachometer
  • A calibration device for a high-precision automobile diesel engine tachometer

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Embodiment

[0026] Such as figure 1 with figure 2 As shown, a high-precision vehicle diesel engine tachometer calibration device is connected to the diesel engine tachometer 6. The calibration device includes a microprocessor subsystem and a diesel engine speed signal simulation subsystem connected to each other. The diesel engine speed signal simulation subsystem is connected to the diesel engine tachometer 6; the microprocessor subsystem sends the control signal to the diesel engine speed signal simulation subsystem, and the diesel engine speed signal simulation subsystem generates a simulated diesel engine operation signal according to the control signal, And provide to diesel engine tachometer 6.

[0027] The diesel engine rotational speed signal simulation subsystem includes a frequency converter 8, a synchronous motor 2, a transmission shaft 3, a cross roller 4, and a test tube 5 which are connected in sequence. The frequency converter 8 is connected to the microprocessor subsystem. ...

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Abstract

The invention relates to a calibration device for a high-precision automobile diesel engine tachometer, the device is connected with the diesel engine tachometer, the calibration device includes a interconnected microprocessor subsystem and a diesel engine rotational speed signal simulation subsystem, the described The diesel engine speed signal simulation subsystem is connected with the diesel engine tachometer; the microprocessor subsystem sends the control signal to the diesel engine speed signal simulation subsystem, and the diesel engine speed signal simulation subsystem generates a high-precision signal for simulating the operation of the diesel engine according to the control signal source, and provided to the diesel engine tachometer. Compared with the prior art, the present invention has the advantages of solving technical difficulties in calibrating diesel engine tachometers, realizing a fast, accurate and convenient calibrating process, and being affirmed and popularized for its excellent performance in practical applications.

Description

Technical field [0001] The invention relates to a diesel engine tachometer calibration technology, in particular to a high-precision automotive diesel engine tachometer calibration device. Background technique [0002] The application of diesel engines in the automotive field is already very popular, and the number of uses is also very large. The diesel engine tachometer is the main instrument that reflects the current working status of the diesel engine. It directly monitors the operation of the diesel engine. The accuracy of the tachometer will affect the accurate judgment of the diesel engine's running status. Therefore, the calibration of the tachometer is daily work. [0003] With the rapid development of industrial technology, diesel engines have gained widespread popularity. Especially for driving devices and heavy locomotives under extreme environments, diesel engines have become indispensable important equipment. In order to use diesel engines safely and effectively, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P21/02
Inventor 沈行良
Owner SHANGHAI UNIV OF ENG SCI
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