Air supply selecting arrangement for electrical control natural gas engine
A technology for selecting devices and natural gas, applied in engine control, combustion engine, machine/engine, etc., can solve the problems of vehicle natural gas engine performance impact, engine failure to meet performance design indicators, poor work, etc., to achieve simple structure and easy modification. , the effect of convenient operation
Active Publication Date: 2009-07-15
DONGFENG MOTOR CORP HUBEI
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Problems solved by technology
After years of research, it is found that the difference in its composition has little effect on general industries, but it still has a considerable impact on the performance of natural gas engines for vehicles
For an electronically controlled natural gas engine, the matching result is specifically aimed at a certain gas source temperament. If another gas source gas quality is used, the engine will not be able to meet its performance design indicators, and may even cause it to work badly
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[0013] Referring to the accompanying drawings, the engine air source selection device of the present embodiment mainly includes a computer control module 5, a power supply system 12, and an execution unit 11 connected to the output end of the computer control module 5; meanwhile, different input ends of the computer control module 5 are respectively connected through wiring harnesses. It is connected with the air source selection switch 4 installed on the dashboard of the vehicle. The air source selection switch 4 includes three positions: air source 1, air source 2, and air source 3; the computer control module 5 has three different air source temperaments. The parameter correction and matching calibration function set sum correspond to different gears on the gas source selection switch, and the classification principle is divided according to the Wobbe index of natural gas.
[0014] Also referring to the drawings, the power system 12 includes a vehicle power supply 1, a power...
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The invention is an engine gas source selection device mainly comprises a computer control module, a power source system connected with input terminals on the computer control module, and an execution component linked to the output terminals on the computer control module. Meanwhile, input terminals on the computer control module are also connected with a gas source selection switch. In actual use, it is possible to select a corresponding switch position according to gas source quality. Therefore, after type of the gas source is changed, it is not necessary to replace the engine but meet requirements of performance indexes. Simultaneously, in the premisis of meeting users' multi-element utilization requirements for fuel gas, the invention has advantages of simple structure, convenient operation and easy modification for the integral prior vehicles.
Description
technical field [0001] The invention relates to an engine electronic control management system, in particular to an electronically controlled gas source selection device for a natural gas engine. Background technique [0002] For an electronically controlled natural gas engine, the engine management system mainly includes a computer control module, a power supply system connected to the input end of the computer control module, and an executive component connected to the output end of the computer control module. The gas used by the engine is a single designated gas source. Temperament, not replaceable. [0003] As an alternative fuel for vehicles, natural gas has many well-known advantages. It is a hydrocarbon combustible gas stored in the ground. There are four main sources of it: gas field gas extracted from gas wells, that is, pure natural gas; Oilfield associated gas; condensate gas field gas containing light fractions of petroleum; coal mine well gas extracted from co...
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IPC IPC(8): F02D19/02
CPCY02T10/32Y02T10/30
Inventor 吴晓
Owner DONGFENG MOTOR CORP HUBEI