Electrically-controlled air compressor oil-saving bench testing device

Abstract

The invention belongs to the technical field of engine test, and particularly relates to an electronic control air compressor oil-saving rack testing device which comprises an electronic control air compressor brake air path system with a controller and a rack measurement and control system. According to the engine pedestal fuel-saving testing method, the problem that the tiny fuel-saving rate is difficult to measure accurately due to personal errors on the pedestal is solved, and the engine pedestal fuel-saving testing method is suitable for engine pedestal fuel-saving testing.

Description

technical field [0001] The invention belongs to the technical field of engine testing and testing, and discloses an electric-controlled air compressor fuel-saving bench testing device. Background technique [0002] Vehicle fuel consumption is an economical technical indicator of the vehicle. Lower fuel consumption is conducive to environmental protection and energy conservation, and at the same time, it can better reflect the competitiveness of vehicle products. At present, electronic control of engine accessories is an important technical measure for engine fuel saving. For example, the electronically controlled water pump, electronically controlled oil pump and electronically controlled air compressor attached to the engine can save more fuel and lower consumption than conventional mechanical control components. [0003] The main factors affecting the fuel-saving efficiency of the electronically controlled air compressor under different control strategies are the actual wo...

AI Technical Summary

Problems solved by technology

However, the fuel saving rate between different control strategies of general electronically controlled air compressors is only below 3% in the cycle test of NEDC cycle fuel consumption or C-WTVC and other fuel consumption regulations. When testing the fuel consumption level of the electronically controlled air compressor on the hub dynamometer, even if the same driver has different braking time and braking time points during each test, there will be differences in the fuel consumption test, and differences in the operation of different drivers It will be even bigger, and the resulting error even exceeds 3%. In addition, the fuel consumption cycle test is carried out on the engine bench to avoid the influence of human factors. Although it can theoretically solve the problems of test test error and poor repeatability, it is difficult to implement It is relatively large, and there are mainly problems such as how to control the brake pedal of the whole vehicle, how to synchronize the brake pedal control signal and test working condition data; Real data on fuel saving of presses in engineering applications

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