A vehicle-mounted methanol cracking reactor control system

Abstract

The invention belongs to the relevant technical field of dual-fuel automobiles, and discloses a vehicle-mounted methanol cracking reactor control system. The vehicle-mounted methanol cracking reactor control system comprises a methanol cracking reactor, a temperature sensor, a methanol spray nozzle, a methanol pump, a methanol box and an auxiliary controller, wherein the methanol cracking reactor communicates with the methanol spray nozzle; the temperature sensor is arranged on the methanol cracking reactor; the methanol spray nozzle is connected with the methanol pump through an oil supply pipe; the methanol pump is arranged in the methanol box. The auxiliary controller realizes communication with a primary controller through a CAN (controller area network) bus, so that the operation parameters of an engine are obtained from the primary controller in real time; the auxiliary controller is also used for collecting temperature data detected by the temperature sensor; the auxiliary controller controls the methanol pump and the methanol spray nozzle to regulate the methanol supply quantity according to the engine parameters, the temperature data and a methanol supply quantity MAP obtained through experiments.

Description

Technical field [0001] The invention belongs to the technical field related to dual-fuel vehicles, and more specifically, relates to a vehicle-mounted methanol cracking reactor control system. Background technique [0002] The current energy shortage and environmental pollution have become the main problems restricting human development. The development and research of alternative fuels such as hydrogen, alcohols, natural gas, and liquefied petroleum gas are constantly deepening, and gratifying results have been achieved. The density of methanol is similar to that of gasoline, and it is easy to store and transport. Methanol has a wide range of sources. It can be produced from natural gas, coal, wood, agricultural and forestry wastes and other biomass and municipal waste. It has a high octane number and a wide range of lean burn, making it a highly efficient fuel. The oxygen content in the methanol molecule is as high as 50%, the combustion speed is fast, and it contains oxygen t...

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Problems solved by technology

However, the above-mentioned control principle has the following limitations: 1. The dual-fuel control ECU generally needs to be connected with a temperature sensor for measuring the intake air temperature, a pressure sensor for measuring the intake air pressure, and a sensor for detecting the engine speed. Guaranteeing its own normal operation increases the complexity of the system; 2. The fuel injection signal is intercepted and there is a certain lag in execution, which is not conducive to the dynamic adjustment of the vehicle engine; 3. The control strategy is not flexible and is only suitable for engines burning methanol fuel. Not suitable for methanol cracking gas

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