Control method and control device of preparation device of vehicle urea solution, and processor

Abstract

The invention provides a control method and a control device of a preparation device for a vehicle urea solution, and a processor. The method comprises the following steps: controlling a feed openingto be opened to make urea particles of storage equipment added into a stirring device; under the condition that the reading change amount of a weighing device is equal to a preset mass, controlling adischarging opening to be closed, wherein the preset mass is the preset feeding amount of the urea particles; determining a water injection amount according to the predetermined mass and the predetermined concentration; controlling a first valve to be opened, and adding pure water at a preset temperature in hot water storage equipment into the stirring device; under the condition that the readingchange amount of a flow detection device is equal to the water injection amount, controlling the discharging opening to be closed; controlling the stirring device to stir the pure water and the urea particles to obtain the finished urea solution. Compared with manual weighing and feeding in the prior art, the method has the following advantages: the automation level of the preparation device of the vehicle urea solution is improved, the labor cost and the time cost are saved, errors caused by manual weighing are avoided, and the percent of pass of the finished urea solution is increased.

Description

technical field [0001] The present application relates to the field of preparation of urea for vehicles, in particular, to a control method for a preparation device of urea solution for vehicles, a control device, a computer-readable storage medium, a processor, and a preparation system for urea solution for vehicles. Background technique [0002] The selective catalytic reduction SCR system using urea for vehicles as the reducing agent is to use the aqueous urea solution for vehicles to react with the nitrogen oxides in the exhaust gas of diesel vehicles such as heavy trucks and buses to generate nitrogen and water to purify the exhaust gas and make the nitrogen oxides discharged A new type of technology that meets the National V emission standard or even higher emission standard. [0003] The traditional method of preparing urea solution for vehicles is rough and cumbersome, requiring steps such as manual weighing and blanking, calculation of proportional water injection, ...

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Problems solved by technology

[0005] The main purpose of this application is to provide a control method, a control device, a computer-readable storage medium, a processor, and a preparation system for a vehicle urea solution to solve the problem of preparing vehicle urea in the prior art. Solution time-consuming and labor-intensive problems

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