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Energy-saving system and control method for vehicle air compressor

An energy-saving system and control method technology, applied in pump control, brakes, mechanical equipment, etc., can solve the problems of low energy utilization rate and high cost, and achieve the effect of high energy utilization rate, low cost, and improved air intake density.

Active Publication Date: 2017-11-17
DONGFENG COMML VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects and problems of low energy utilization rate and high cost in the prior art, and provide a vehicle air compressor energy-saving system with high energy utilization rate and low cost and its control method

Method used

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  • Energy-saving system and control method for vehicle air compressor
  • Energy-saving system and control method for vehicle air compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] See Figure 1 to Figure 2 , An energy-saving system for a vehicle air compressor, comprising an engine 1, an air filter 2, an air compressor 3. The air inlet of the air compressor 3 is connected to the air outlet of the engine 1, and the outlet of the air cleaner 2. The air ports are connected with the air circuit, the air outlet of the air compressor 3 is connected with the air circuit of the air reservoir 5 after passing through the dryer 4, and the air inlet of the air compressor 3 is connected with the air circuit of one end of the accumulator 6. The air outlet of 3 is connected with the other end of the pressure accumulator 6 in a gas circuit.

[0054] According to the above solution, a control method for an energy-saving system of an air compressor for a vehicle, the control method includes the following steps: when the engine 1 drives the piston of the air compressor 3 down: the air enters the air compressor after passing through the air filter 2 3; when the engine...

Embodiment 2

[0056] The basic content is the same as Example 1, the difference is:

[0057] See Figure 1 to Figure 2 The air inlet of the air compressor 3 is connected to the air outlet of the engine 1 and the air outlet of the air cleaner 2 through the one-way valve 13 in a gas path.

Embodiment 3

[0059] The basic content is the same as Example 1, the difference is:

[0060] See figure 1 , The air inlet of the air compressor 3 is connected to the air outlet of the accumulator 6 through the bypass valve 12 and the bypass pipe 11 in sequence, and the air outlet of the air compressor 3 is connected to the air outlet of the accumulator 6 through the switching valve 7 and the pressure accumulator in sequence. The pipeline 8 is then connected to the air path of the air inlet of the accumulator 6, and the air outlet of the air compressor 3 is connected to the air path of the air reservoir 5 through the switching valve 7 and the dryer 4 in turn. The switching valve 7 is two-position three-position The air reservoir 5 is provided with an air reservoir pressure sensor 9, which is signally connected to the vehicle VCU10, and the vehicle VCU10 is signally connected to the conversion valve 7; the bypass valve 12 is a pneumatic diaphragm spring The accumulator pressure sensor 14 and the...

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Abstract

A vehicle air compressor energy-saving system comprises an engine, an air filter and an air compressor. An air inlet of the air compressor is in gas circuit connection with an air outlet of the engine and an air outlet of the air filter, the air inlet of the air compressor passes through a bypass valve and a bypass pipeline in sequence and then is in gas circuit connection with an air outlet of a pressure accumulator, an air outlet of the air compressor passes through a changeover valve and a pressure accumulation pipeline in sequence and then is in gas circuit connection with an air inlet of the pressure accumulator, the air outlet of the air compressor passes through the changeover valve and a dryer in sequence and then is in gas circuit connection with an air cylinder, an air cylinder pressure sensor in signal connection with a VCU is arranged on the air cylinder, and the VCU is in signal connection with the changeover valve. In unloading of the air cylinder, compressed air in the air compressor passes through the changeover valve and a pressure accumulation circuit in sequence and then is discharged into the pressure accumulator; in unloading of the pressure accumulator, pressurized air in the pressure accumulator passes through the bypass pipeline and the bypass valve in sequence and then enters the air compressor. The vehicle air compressor energy-saving system is high in energy utilization rate and low in cost, and the efficiency of the air compressor is improved.

Description

Technical field [0001] The invention relates to an air compressor system, in particular to an energy-saving system of an air compressor for a vehicle and a control method thereof, and is mainly suitable for improving the energy utilization rate of the air compressor system for a vehicle. Background technique [0002] The vehicle air compressor is one of the important accessories of the diesel engine. The air compressor mainly provides compressed air for the braking system. At present, the existing automobile air compressor generally adopts a reciprocating piston air compressor. Through the gear train of the engine, The transmission gear of the transmission air compressor makes the piston of the air compressor reciprocate to deliver compressed air for the braking system. With the increasing requirements for vehicle comfort and economy, the braking system is becoming more and more complex, and the demand for air compressor displacement is also increasing, such as air suspension fra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B41/02F04B49/06B60T13/26
CPCB60T13/268F04B41/02F04B49/06
Inventor 李平杨细元陈功军涂南明张辉亚沈彬路恒
Owner DONGFENG COMML VEHICLE CO LTD