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Discharge quick simulation tester for cold starting automobile engine of light car

A technology of automobile engine and test device, which is applied in the direction of engine test, measuring device, machine/structural component test, etc. It can solve the problems of not being able to study engine changes and not being able to reflect the real situation of the entire vehicle hub

Inactive Publication Date: 2005-09-07
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is simple and easy to implement, and the test conditions have good reproducibility, but it cannot study the changing working conditions of the engine, so it cannot reflect the real situation of the test process of the complete vehicle hub

Method used

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  • Discharge quick simulation tester for cold starting automobile engine of light car
  • Discharge quick simulation tester for cold starting automobile engine of light car
  • Discharge quick simulation tester for cold starting automobile engine of light car

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Embodiment Construction

[0015] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0016] figure 1 It is a schematic diagram of the structure of the automobile engine low-temperature cold start rapid simulation emission test device provided by the present invention. The device mainly includes a cooling cabin 2, a tested engine 8, a refrigeration system composed of a refrigeration unit 1 outside the cabin and an evaporator 3 in the cabin, a forced rapid cooling device for engine coolant, a forced rapid cooling device for engine lubricating oil and Catalytic converter forced rapid cooling device, the eddy current dynamometer 14, two emission analyzers 12, computer control acquisition system 15 that are arranged outside the cooling cabin; Machine 14 is connected. The cooling cabin is provided with a hatch 7, and the bottom plate, body of wall, roof, and hatch 7 of the cooling cabin 2 are made of thermal insulation materi...

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Abstract

The invention relates to a device for stimulating the cool start of the motor of the light vehicle, which applies to the motor platform for stimulating the hub test behavior of the light vehicle III, IV. Said device comprises primarily a cooling cabin, a refrigerating system, a motor intensive fast-cooling apparatus, an electric eddy current dynamometer set outside the cooling cabin, two discharging analyzer and a computer controlling and selecting system. The invention controls the cabin temperature combined with the intensive fast-cooling apparatus, and cools temperature of the motor, post handing system, accessory parts evenly and rapidly, which reduces the preparing time.

Description

technical field [0001] The invention relates to a light-duty automobile engine low-temperature cold start tail gas emission test technology and equipment, and belongs to the technical field of automobile test and test. Background technique [0002] In order to reduce vehicle pollutant emissions, the emission regulations for motor vehicles in various countries are becoming more and more stringent. The EU's third-stage emission regulations (referred to as Euro III standards) implemented in 2000 have added emission test items after cold start of light-duty vehicles at low temperatures to control the emission of pollutants after cold start of vehicles in winter. my country's national standard GB18352.3 "Light Vehicle Pollutant Emission Limits and Measurement Methods (III, IV)" also has the same provisions. [0003] Low-temperature cold start emission test of light-duty vehicles, the Euro III standard requires the car to be placed in an environment of -7°C (minus 7°C) for 12 to ...

Claims

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Application Information

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IPC IPC(8): G01M15/00
Inventor 肖建华王建昕徐仲伦庄人隽帅石金房树堂马崴
Owner TSINGHUA UNIV
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