Methanol engine cold starting control system and method for vehicle

A methanol engine and control system technology, applied in engine control, engine starting, engine components, etc., can solve problems such as wasting energy, and achieve the effects of energy saving, long heating time, and sufficient fuel combustion

Active Publication Date: 2017-05-31
ZHEJIANG GEELY HLDG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The inventors have found that there are obvious defects and deficiencies in the solutions in the prior art, for example: 1) when the ambient t

Method used

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  • Methanol engine cold starting control system and method for vehicle
  • Methanol engine cold starting control system and method for vehicle
  • Methanol engine cold starting control system and method for vehicle

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Example Embodiment

[0043] figure 2 A schematic block diagram of a methanol engine cold start control system 100 for a vehicle according to an embodiment of the present invention is shown. image 3A working principle diagram of a methanol engine cold start control system 100 for a vehicle according to an embodiment of the present invention is shown. The present invention provides a methanol engine cold start control system 100 for a vehicle. The system 100 is used to control the heating of methanol fuel and air when the methanol engine is in the starting phase. The present invention adopts single fuel rail technology, and the system 100 may include a fuel storage tank, an oil pump and a fuel rail injector assembly 230 . When working, the oil pump pumps the methanol fuel from the fuel storage tank to the fuel rail injector assembly 230 to spray the atomized methanol fuel into the air intake, and then deliver it to the combustion chamber of the methanol engine. The system 100 may also include a ...

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Abstract

The invention provides a methanol engine cold starting control system for a vehicle and belongs to the technical field of vehicle engine controlling. The system comprises a first temperature sensor, a second temperature sensor, a first heating element, a second heating element and a controller; the first temperature sensor is used for detecting the air temperature in an intake manifold, the second temperature sensor is used for detecting the methanol fuel temperature in a fuel rail fuel injector assembly, the first heating element is used for heating air in the intake manifold, the second heating element is used for heating the methanol fuel temperature in the fuel rail fuel injector assembly, and the controller is used for selectively starting and stopping the first heating element according to the air temperature and selectively starting and stopping the second heating element according to the methanol fuel temperature. According to the scheme of the methanol engine cold starting control system for the vehicle, when the environment temperature is suitable for methanol cold starting, the system is not started to heat, and thus energy resources can be saved; and when the air temperature and the methanol fuel temperature meet starting requirements, even if an engine is not started, the system automatically stops heating, so that the intake manifold and a fuel supplying pipeline are not damaged.

Description

technical field [0001] The invention relates to the technical field of vehicle engine control, in particular to a methanol engine cold start control system and method for vehicles. Background technique [0002] Methanol has many advantages as a vehicle fuel. However, due to its high ignition point, it is difficult to start a methanol vehicle at low temperature. In order to solve the low-temperature starting problem of methanol fuel, dual fuel rail technology is generally used at present, that is, gasoline is used as the starting fuel, and when the engine temperature reaches a certain level, it will switch to methanol fuel to work. [0003] The disadvantage of dual fuel rail technology is that the use of two sets of fuel rails requires space layout, making it impossible to take into account the best injection angles of the two sets of injectors, which affects fuel performance. In order to overcome the shortcomings of double oil rails, it is currently changing to single oil r...

Claims

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Application Information

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IPC IPC(8): F02D41/06F02N19/04F02M31/125F02M31/13
CPCF02D41/064F02D41/068F02D2200/023F02D2200/0414F02D2200/0606F02D2200/50F02M31/125F02M31/13F02N19/04
Inventor 吴勇胜金先扬陶劲峰宋金环
Owner ZHEJIANG GEELY HLDG GRP CO LTD
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