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Vehicle control method, system and vehicle

A control method and control system technology, applied in engine control, machine/engine, mechanical equipment, etc., can solve the problems of high noise and vibration, easy deflagration of gasoline, high pressure rise rate, etc., to improve ride comfort, reduce noise and vibration, The effect of reducing the cost of gasoline usage

Active Publication Date: 2014-12-24
GREAT WALL MOTOR CO LTD
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Problems solved by technology

[0003] Since the octane number of gasoline determines the anti-knock performance of gasoline, when the effective compression ratio is relatively high, or the temperature in the cylinder is relatively high, gasoline is prone to deflagration, which will cause the dual-fuel engine to burn too fast, the pressure rise rate is too high, and the noise and vibration are large

Method used

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  • Vehicle control method, system and vehicle
  • Vehicle control method, system and vehicle
  • Vehicle control method, system and vehicle

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0029] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element refe...

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Abstract

The invention provides a vehicle control method, a vehicle control system and a vehicle. The vehicle comprises a duel-fuel engine and a plurality of gasoline tanks, wherein the octane values of gasoline in the plurality of gasoline tanks are different. The method comprises the following steps of detecting an excess air coefficient lambda, the proportion of gasoline and diesel oil and the temperature in a cylinder; respectively obtaining a first gasoline octane value, a second gasoline octane value and a third gasoline octane value according to the lambda, the proportion of the gasoline and the diesel oil and the temperature in the cylinder; acquiring the maximal gasoline octane value from the first gasoline octane value to the third gasoline octane value to be used as the final gasoline octane value; selecting the gasoline from the plurality of gasoline tanks to be used as the fuel of the duel-fuel engine according to the final gasoline octane value. According to the vehicle control method disclosed by the embodiment of the invention, the duel-fuel engine can more steadily and stably operate, the noise vibration of the engine is reduced, the riding comfort of the vehicle is enhanced, and in addition, the use cost of the gasoline can be effectively lowered.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a vehicle control method, system and vehicle. Background technique [0002] Dual-fuel engines, for example, for dual-fuel engines with port injection gasoline and in-cylinder injection diesel fuel, since gasoline and diesel fuels are required, the ratio of gasoline and diesel and the concentration of gasoline can affect the engine The combustion efficiency and the noise and vibration of the combustion process. [0003] Since the octane number of gasoline determines the anti-knock performance of gasoline, when the effective compression ratio is relatively high, or the temperature in the cylinder is relatively high, gasoline is prone to deflagration, which will cause the dual-fuel engine to burn too fast, the pressure rise rate is too high, and the noise and vibration are large . Contents of the invention [0004] The present invention aims to solve at least one of the abov...

Claims

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Application Information

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IPC IPC(8): F02D19/08
Inventor 崔亚彬王正庭刘秀会刘瑞
Owner GREAT WALL MOTOR CO LTD
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