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

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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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[0028] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary, and are only used to explain the present invention, but should not be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer" etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified, rather than indicating or impl...

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PUM

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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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