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Hardware-in-loop-based vehicle engine lubricating oil pump dynamic matching test device and method

A technology of vehicle engine and lubricating oil pump, which is applied in the direction of engine testing, machine/structural component testing, measuring device, etc. Achieve the effect of improving the matching design of the lubrication system

Active Publication Date: 2021-04-16
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the vehicle design stage, there is a lack of the entire vehicle and the actual engine as the test object for the dynamic matching of the lubrication system, which restricts the simultaneous development of the lubricating oil pump and the vehicle engine

Method used

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  • Hardware-in-loop-based vehicle engine lubricating oil pump dynamic matching test device and method
  • Hardware-in-loop-based vehicle engine lubricating oil pump dynamic matching test device and method
  • Hardware-in-loop-based vehicle engine lubricating oil pump dynamic matching test device and method

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Embodiment Construction

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. On this basis, those skilled in the art can realize all the technical solutions recorded in the claims.

[0025] Such as Figure 1d As shown, the vehicle engine and lubricating oil pump dynamic matching test device based on hardware-in-the-loop of the present invention includes: a frequency converter 1, a motor 2, a lubricating oil pump 3, a pressure sensor 4, a flow sensor 5, an electric proportional valve 6, and a computer 7; The frequency converter 1 controls the motor 2 to drive the lubricating oil pump 3; the pressure sensor 4 and the flow sensor are installed on the lubricating oil pipeline 5; the electric proportional valve 6 is installed at the end of the lubricating pipeline; the computer 7 determines the engine dynamics according to the actual driving process...

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Abstract

The invention discloses a hardware-in-loop vehicle engine lubricating oil pump dynamic matching test device and test method. The test device comprises a frequency converter, a lubricating oil pump, a driving motor, a pressure sensor, a flow sensor, an electric proportional valve, a lubricating oil pipeline, a computer and the like. A lubricating oil pump rotating speed control scheme is determined according to the dynamic running working condition requirement of the vehicle engine in the running process, and the lubricating flow and pressure requirements of the engine under the dynamic running working condition are simulated through the electric proportional valve opening. The dynamic driving torque of the lubricating oil pump, outputting parameters such as lubricating oil flow and pressure are measured, and the matching characteristics of the lubricating oil pump and the engine under the dynamic working condition are evaluated. The dynamic working condition matching test of the lubricating oil pump hardware-in-the-loop can be carried out by a designer according to the engine design lubrication requirement and the dynamic working condition under the condition of no engine prototype, the design and development process of an engine lubrication system is accelerated, and the development cost is reduced.

Description

technical field [0001] The invention relates to the technical field of vehicle engine lubrication, in particular to a hardware-in-the-loop dynamic matching test device and test method for a vehicle engine and a lubricating oil pump. Background technique [0002] In the traditional engine design technology, the lubricating oil pump is designed to match the engine according to the static operating point (such as maximum speed, maximum torque, idle speed, etc.). In order to ensure that the engine has a sufficient lubricating safety margin under transient conditions, the displacement of the lubricating oil pump is usually increased, so that the oil supply pressure and flow rate of the lubricating oil pump are much higher than the engine lubrication design requirements. Therefore, this design method brings serious driving power loss. [0003] In view of the problems existing in the matching design of static working conditions, engineers use more dynamic working condition matchin...

Claims

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Application Information

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IPC IPC(8): G01M15/00
Inventor 刘忠民杜煜轩李昊
Owner HANGZHOU DIANZI UNIV
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