RU24555U1 - VEHICLE INTERNAL COMBUSTION ENGINE FLOW METERING SYSTEM - Google Patents

Abstract

1. A fuel consumption metering system for a vehicle’s internal combustion engine, containing two primary flow converters, two thermometers located on the discharge and drain pipelines of fuel, a computer consisting of a microcontroller, an indication panel, an archive, an electronic real-time clock, a port, two pulse shapers connected to the flow transducers and the calculator, the power supply associated with the calculator, characterized in that it is equipped with at least one device for stabilization of sweat eye of fuel installed in the discharge and / or drain pipelines, a reader connected to the port to output the entire amount of information from the archive and enter the volume and density values of the refueling fuel, and the system calculator is equipped with a second port for connection to the diagnostic systems of the internal combustion engine and automation vehicle. 2. The system according to claim 1, characterized in that one reader is designed to connect several vehicles internal combustion engines to computers.

Description

Fuel consumption metering system of an internal combustion engine

vehicle

The utility model relates to measuring the mass of liquids, in particular, fuel for internal combustion engines when passing it through a measuring device in a continuous stream.

A device for measuring the flow rate in an internal combustion engine is used when performing operational and rheostatic tests of diesel locomotives (SU, copyright certificate No. 1242744, class G01M 15/00, publ. 1986). The disadvantage of this device is the presence of one primary flow converter, which is why when installing the device the alteration of the fuel system from flowing to deadlock, the lack of the possibility of computer-based data collection on the flow rate, the insecurity of the received data due to free access to them.

A device is known (the article "Fuel flow meters for diesel locomotives in the journal" Electric and diesel traction, No. 9 of 1982) is a remote fuel meter of the DT type for measuring fuel consumption, which is switched on by a flowing fuel supply circuit of a diesel engine. This differential type device contains two measuring elements at the inlet to the diesel engine and at the outlet of it. The fuel meter also contains a power supply and an indicator of the flow rate and amount of fuel. Information on the amount and fuel consumption can be displayed

to external display and registration devices. The disadvantage of this device is the impossibility of accounting for mass fuel consumption and insecurity from unauthorized input and output of information.

It is known that two flowmeters of the OR-40 type are installed in the fuel system of a diesel diesel 2-2D49, one on the discharge line, the other on the drain line (article in the journal Heavy Engineering No. 7 of 1999, V.V.Domogatsky, V.Z.Kakotkin L.S. Turov "Universal wide-range model roller-blade flowmeters and counters of the amount of liquid and gas). The difference in readings of these flow meters is the amount of fuel used up by a diesel engine. The MS-75 instrument acts as a calculator here, which measures, fixes and remembers the total volume that has passed through the flow meter. In addition, the MS-75 device also allows you to determine the difference in volumes and costs of the two primary converters, flow rate, operating time and time of the experiment. The MS-75 device has a port for connecting a computer (reader). The disadvantage of this device is the lack of determination of mass fuel consumption, insecurity from unauthorized input and output of information, the inability to connect the device to the diagnostic systems of the internal combustion engine and vehicle control.

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A device is known - FuelCom (Progressive Raill 997-4 p63), which provides full temperature-viscosity compensation of fuel to bring to one volume. The device contains two primary converters at the entrance to the diesel engine and at the exit from it. The disadvantage of this device is the lack of compensation for fuel density, i.e. there is no accounting for mass fuel consumption and the fact that due to the location of the control panel on the calculator, unauthorized interference with the operation of the calculator is not ruled out. There is no possibility of connecting the device to the diagnostic systems of an internal combustion engine and driving a vehicle.

A known system adopted for the prototype, registration of fuel flow for use on diesel vehicles (Modem Railroads, 1980, No. 10, p.66). The system gives indications of the current fuel consumption, total fuel consumption, remaining fuel in the tank. The system is equipped with temperature compensation, which takes into account changes in viscosity and specific gravity when measuring flow in the discharge and drain pipelines. The disadvantage of this system is the lack of data archiving and the possibility of outputting them for subsequent work with them, the inability to enter the actual values of the fuel density and taking into account the possible change in its value taking into account mixing with fuel residues in the tank, the inability to connect the device to the diagnostic systems of the internal combustion engine and transport management

means.

The technical result of the utility model is to increase the accuracy of recording the total mass consumption of fuel by an internal combustion engine while expanding the device’s functional capabilities: computer collection and processing of consumption data, increasing the degree of protection; data retrieval due to the impossibility of unauthorized access to them without using a reader, for diagnostics of the internal combustion engine and vehicle control.

The specified technical result is achieved by the fact that the fuel consumption metering system of the vehicle’s internal combustion engine, containing two primary flow converters, two thermometers located on the fuel discharge and drain pipelines, a calculator consisting of a microcontroller, an indication panel, an archive, a real-time electronic clock, ports, two pulse shapers connected to the flow converters and the calculator, the power supply connected to the calculator is equipped with at least one troystvom fuel flow stabilization, installed in the conveyor and / or drain pipes, the reading device being connected to the output port for the entire volume of information from the input file and the volume and density of fuel filled, and computer system provided with a second port for

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connections to diagnostic systems of the internal combustion engine and vehicle automation. In addition, one reader is designed to connect to the computer several internal combustion engines of the vehicle.

The essence of the utility model is illustrated by the diagram, which presents a system for accounting fuel consumption of an internal combustion engine of a vehicle.

The system contains two primary converters 1 and 2 of the flow located on the discharge 3 and drain 4 pipelines of the fuel of the internal combustion engine 5 with a fuel tank (not shown in the diagram) mounted on the vehicle, two shapers 6 and 7 pulses, two thermometers 8 and 9 located on the discharge 3 and drain 4 pipelines of the internal combustion engine 5 near the primary converters 1 and 2 of the flow, one or more flow stabilization devices 10, 11, 12, 13 (the diagram shows their maximum number - 4), the numerator 14, including the microcontroller 15, the display panel 16, the archive 17, the real-time electronic clock 18, two ports: the first - 19, the 2nd - 20, and the system also contains a power supply 21 and a reader 22 connected with the calculator 14. The pulse generators 6 and 7 are connected respectively to the flow converters 1 and 2 and the calculator 14. The reader 22 is designed to output the entire amount of information regarding the fuel from the calculator 14 and enter the values of the volume of the filled fuel and its density into the calculator 14. Calculator 14 turn connected through the 2nd port 20 from the engine combustion diagnostic systems and automation of the vehicle.

The fuel metering system operates as follows.

Using two primary converters 1 and 2 of the turbine type, the volumetric fuel consumption is measured at the inlet to and exit from the internal combustion engine 5. The uniform flow of fuel through the primary converters 1 and 2 is a prerequisite for accurate measurement of fuel consumption. In the fuel systems of internal combustion engines of vehicles, there is no uniform flow of fuel. The uniform flow of fuel in the system is ensured by the installation of one or several devices 10, 11, 12, 13 for stabilizing the flow. Electrical signals from the flow converters 1 and 2 are supplied to pulse shapers 6 and 7, and from there to the microcontroller 15 of calculator 14. The signals from thermometers 8 and 9, which measure the temperature of the fuel in the places where the flow is measured, are received here. at the inlet and outlet of the internal combustion engine. Using the reader 22, which is temporarily connected to the calculator 14, through port 19, the microcontroller 15 introduces the parameters of the internal combustion engine charged into the fuel tank in terms of fuel density and volume, and sets the date and time of the real-time clock 18.

New values of the fuel volume in the tank and a new density value are calculated, taking into account the remaining fuel in the tank using a microcontroller 15, which counts the number of pulses from each pulse shaper 6 and 7, generating signals from the corresponding flow converters 1 and 2, according to the calibration the dependencies stored in the memory of the microcontroller 15, translate the number of pulses into the volumetric flow rate, bring the density of the fuel to a density corresponding to the temperature of the fuel measured at the places of measurement fuel, i.e. the placement of the flow converters 1 and 2 and thermometers 8, 9 according to a special relationship, calculate the mass fuel consumption at the inlet to and exit from the internal combustion engine, i.e. for each flow converter, the mass consumption of fuel of the internal combustion engine is calculated as the difference at the inlet and outlet of the internal combustion engine, the consumed fuel is determined by summing the current values of the mass consumption of fuel of the internal combustion engine and the remaining fuel in the vehicle tank by subtracting from the fuel volume in tank of fuel consumed. On the display panel 16, the current values of the fuel mass flow rates of the internal combustion engine, the total value of the fuel temperature, time (in hours and minutes), volumes of refueling, spent fuel and its remainder in the tank are displayed on a call. The stabilized DC voltage converters 1 and 2 flow, the calculator 14 receive from the power unit 22. Archive in the archive 17 of the calculator 14 data on fuel consumption, bind them to the date and time. All information from the archive memory 17 through port 19 can be transferred to the reader 22 for its further computer processing. The calculated mass flow rate of the fuel is transmitted through the second port 20 to the diagnostic system of the internal combustion engine and the vehicle automation. The presence of one reading device, for example, in a locomotive depot or in another vehicle-based location provides a unified control over the collection of information on fuel consumption in a depot. It is possible to read information during one of the technical maintenance of the vehicle, which takes place at intervals of 5-15 days.

The proposed utility model allows to reduce by at least 1.5% fuel losses associated with unauthorized drains; 5% decrease “fuel burn-out due to timely decommissioning of vehicles according to diagnostic indicators, at least 1% reduction in fuel consumption while monitoring fuel characteristics during rheostat tuning, and drastically reduce fuel consumption in operation (by 10-15%) due to optimization of modes movement.

Claims (2)

1. A fuel consumption metering system for a vehicle’s internal combustion engine, containing two primary flow converters, two thermometers located on the discharge and drain pipelines of fuel, a computer consisting of a microcontroller, an indication panel, an archive, an electronic real-time clock, a port, two pulse shapers connected to the flow transducers and the calculator, the power supply associated with the calculator, characterized in that it is equipped with at least one device for stabilization of sweat eye of fuel installed in the discharge and / or drain pipelines, a reader connected to the port to output the entire amount of information from the archive and enter the volume and density values of the refueling fuel, and the system calculator is equipped with a second port for connection to the diagnostic systems of the internal combustion engine and automation vehicle. 2. The system according to p. 1, characterized in that one reader is designed to connect to the computers several internal combustion engines of vehicles.