RU99153U1 - VEHICLE INTERNAL COMBUSTION ENGINE FLOW METERING SYSTEM - Google Patents

Abstract

 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 calculator unit consisting of a microcontroller, a display panel, a memory unit, a real-time electronic clock and an information input / output port , two pulse shapers connected to the primary flow converters and the calculator unit, an autonomous power unit connected to the calculator unit, devices about stabilization of the fuel flow installed in the discharge and drain pipelines, a reader connected to the port to output the entire amount of information from the memory unit and enter the volume and density values of the refueling fuel, characterized in that the vehicle’s speed sensor and frequency sensor are additionally introduced into the system engine rotation, fuel level sensor, air flow sensor through the vehicle engine, pressure and ambient temperature sensors, amplifier, en an analog-to-digital converter, a fuel reserve calculating unit, a CDMA modem and a GLONASS / GPS signal receiver, the vehicle speed sensor, engine speed sensor, fuel level sensor, air flow sensor through the vehicle engine, pressure and temperature sensors ambient air is connected through an amplifier and an analog-to-digital converter to the inputs of the microcontroller of the calculator unit, also a GLONASS / GPS-signal receiver is connected to the input of the microcontroller, and to the inputs / outputs

Description

The utility model relates to measuring technique and can be used to measure, record and control fuel consumption of a vehicle’s internal combustion engine during operation and to monitor its condition.

A known device for measuring fuel consumption in an internal combustion engine, used during operational and rheostatic tests of diesel locomotives [Copyright certificate SU, No. 1242744, G01M 15/00, publ. 07/07/1986 Aut. Myagkikh O.V. and etc.]. 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 data obtained due to free access to them.

A known metering system for the fuel consumption of an internal combustion engine of a vehicle, comprising two primary flow converters, two thermometers located on the discharge and drain pipelines of fuel, a calculator 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, a device for stabilizing the flow of fuel installed in the discharge and drain pipelines, a reader connected to the port to output the entire amount of information from the archive and enter the values of the volume and density of refueling. The specified system provides the ability to measure and control the fuel consumption of the vehicle in time coordinates, with the output of information on the display panel, computer-based collection and processing of data on consumption, security of the received data. [Utility model RU, No. 24555, G01F 9/00, 1/10, publ. 08/10/2002, ed. Okhotin A.A.]

This system is selected by the authors as a prototype.

The disadvantages of the known system of accounting for fuel consumption of an internal combustion engine of a vehicle are the lack of measurement of the fuel level during operation and the calculation of its remainder in the fuel tank, insufficient control of fuel consumption in the coordinates of the location of the vehicle, lack of fixation of unauthorized selection and loss of fuel, monitoring of engine operation parameters and the vehicle as a whole, lack of consideration of weather conditions, lack of computer capabilities another remote collection of data on fuel consumption.

The technical result is the expansion of functionality and optimization of operational control of fuel consumption by taking into account air flow through the engine, crankshaft speed, speed, geographic coordinates and environmental weather conditions in real-time vehicle operating time, visual display of the fuel supply in the fuel tank, as well as the possibility of computer remote data collection on consumption.

The technical result is achieved by the fact that in a system containing two primary flow converters, two thermometers located on the discharge and drain pipelines of fuel, a calculator unit consisting of a microcontroller, an indication panel, a memory unit, a real-time electronic clock and an input / output information port, two pulse shapers connected to the primary flow converters and the calculator unit, an autonomous power supply unit connected to the calculator unit, a fuel flow stabilization device, Installed in the discharge and drain pipelines, a reader connected to the port to output the entire amount of information from the memory unit and enter the values of the volume and density of the refueling fuel, an additional vehicle speed sensor, engine speed sensor, fuel level sensor, flow sensor air through the vehicle's engine, pressure and ambient temperature sensors, which are connected through the amplifier and an analog-to-digital converter to the mic the rocker of the calculation unit, and the fuel supply calculation unit, a CDMA modem and a GLONASS / GPS receiver, are also connected to the microcontroller, while the microcontroller is programmed with the ability to accumulate statistics on measuring the fuel level in the vehicle tank, fuel and air consumption by the engine, temperature and ambient air pressure, engine speed, registration of engine start, vehicle movement, fuel drain / refueling with reference to geographical the coordinates of the terrain received by the GLONASS / GPS receiver - signals, as well as receiving via CDMA - modem the code of the electronic address of the computer of the automated control system of the enterprise and transmitting encoded information to the specified address in real time from the memory unit of the calculator unit.

The additional introduction of new elements provides not only the preservation and display of visual information on the display panel, but also the possibility of direct (via a reader), as well as remote (via a CDMA modem) reading and displaying information on the fuel consumption, operating modes of the vehicle on an external device means and such parameters as fuel drain / refueling with registration of the vehicle location in real-time coordinates and, accordingly, data transfer to ACS companies for operational control, archiving and additional analysis, which ensures the expansion of functionality and optimization of operational control of fuel consumption by taking into account the level of fuel in the fuel tank, air flow through the engine, geographical coordinates and weather conditions in real time of the vehicle, and also a visual display of fuel in the fuel tank.

Figure 1 presents a schematic diagram of a system for accounting fuel consumption of an internal combustion engine of a vehicle.

The system consists (Fig. 1) of a discharge pipe 1, a first flow stabilization device 2 of a first thermometer 3, a first primary flow transducer 4, an internal combustion engine 5, a second flow stabilization device 6, a second primary flow transducer 7, a second thermometer 8, a drain pipe 9, the first pulse shaper 10, a reader 11, a CDMA modem 12, an electronic real-time clock 13, a memory block 14, an indication panel 15, a microcontroller 16, an input / output port 17, a subtracter a splitter 18, a second pulse shaper 19, a power supply unit 20, a GLONASS / GPS receiver - signals 21, a fuel reserve calculation unit 22, an analog-to-digital converter 23, an amplifier 24, a vehicle speed sensor 25, an engine speed sensor 26, a sensor the fuel level 27, the air flow sensor through the engine 28, the ambient pressure sensor 29 and the ambient temperature sensor 30.

The primary flow converters 4 and 7, thermometers 3 and 8 are located on the discharge 1 and drain 9 fuel pipelines, the calculator unit 18 consists of a microcontroller 16, an indication panel 15, a memory unit 14, an electronic real-time clock 13 and an information input / output port 17. The pulse shapers 10 and 19 are connected to the primary flow converters 4 and 7 and the corresponding inputs of the calculator unit 18. The output of the autonomous power supply unit 20 is connected to the input of the calculator unit 18. The fuel flow stabilization devices 2 and 6 are installed in netatelnom and drain pipes. The reader 11 is connected to port 17 to output the entire amount of information from the memory unit 14 and enter the values of the volume and density of the refueling fuel. The vehicle speed sensor 25, the engine speed sensor 25, the fuel level sensor 26, the air flow sensor through the vehicle engine 27, the pressure sensors 29 and the ambient temperature 30 are connected through an amplifier 24 and an analog-to-digital converter 23 to the inputs of the microcontroller 16 the calculator unit 18, the GLONASS / GPS receiver 21 is connected to the input of the microcontroller 16, and the fuel reserve calculation unit 22 and the CDMA modem 12 are connected to the inputs / outputs of the microcontroller 16.

The system works as follows:

Using two primary converters 4 and 7 of the turbine type flow rate installed on the discharge 1 and drain 9 fuel pipelines, the volumetric fuel consumption is measured at the inlet and outlet of the internal combustion engine 5. In the fuel systems of internal combustion engines of vehicles, there is no uniform flow of fuel. The uniform flow of fuel through the primary converters 4 and 7 provides an accurate measurement of fuel. The uniform flow of fuel in the system is ensured by the installation of two devices 2 and 6 for stabilizing the flow. Electrical signals from the flow converters 4 and 7 are supplied to pulse shapers 10 and 19, and from there to the microcontroller 16 of the calculator unit 18. Signals from thermometers 3 and 8, which measure the temperature of the fuel in the places of flow measurement, are also received here. at the inlet and outlet of the internal combustion engine. Using the reader 11, which is temporarily connected to the calculator unit 18, the density and volume parameters of the fuel refueled into the fuel tank are entered through the port 17 into the microcontroller 16, and the date and time of the real-time clock 13 are initially set.

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 16, which counts the number of pulses from each pulse shaper 10 and 19, generating signals from the corresponding primary flow converters 4 and 7, by the calibration dependence stored in the memory of the microcontroller 16, 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 in places of measurement Fuel Ia, i.e. placement of primary flow converters 4 and 7 and thermometers 8, 3 according to a special relationship, calculate the mass fuel consumption at the inlet to the internal combustion engine and at the exit from it, 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 spent fuel is determined by summing the current values of the mass flow rate of the fuel of the internal combustion engine.

In working condition, the system is powered by the vehicle’s battery, when the battery is disconnected, the system operates in micro-power mode from the autonomous power supply 20. When the fuel consumption control system is in operation, the microcontroller 16, in addition to determining the fuel consumption, is supplied through an analog-to-digital converter 23 amplifier 24 collects information from the following primary converters: fuel level sensor 27, air flow sensor through engine 28, outdoor air pressure sensor 29, outdoor temperature sensor 30. The microcontroller accumulates statistics of the indicated measurements in real time recorded by the electronic clock 13 of the calculator unit 18. At the same time, the following information is displayed on the display panel 15: instantaneous fuel consumption, average fuel consumption per 100 km of traveled distance, if the vehicle is parked for 1 hour idle, as well as the remaining fuel in the fuel tank determined by the fuel reserve calculation unit 22.

At the same time, the receiver of GLONASS / GPS signals 21 receives the navigation information, which is fed to the microcontroller 16, where the parameters are processed and linked by the information taken from the primary information converters with the coordinates of the vehicle location.

After processing the received data, the microcontroller stores information in the memory unit 14.

Upon receipt of a special encoded request from an external device (determined by the microcontroller software), this information is read from the memory unit 14 of the calculator unit 18 and transmitted via CDMA - modem 12 to the server of the external device.

If any of the events occurs, for example, “Starting the engine”, “Start of movement”, “Fuel drain”, the signals of the engine speed sensor 26, the speed sensor 25, the fuel level sensor 27 are sent to the calculator unit 18. Information received by the calculator unit 18 These events are processed in a special way with reference to the coordinates of the location of the vehicle in real time.

Reading information from the memory unit 14 of the calculator unit 18 is provided by external computer devices with varying degrees of access (through a reader 11 and port 17 or through a CDMA modem 12).

The proposed system allows to reduce by 2.5% the fuel loss associated with unauthorized discharges, by 7% to reduce the “burnout” of fuel by the vehicle in operation, allows to accumulate statistics on the operational parameters of the vehicle’s power plant under specific operating conditions, with reference to the geography of the area, allows you to optimize vehicle driving modes.

Claims (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 calculator unit consisting of a microcontroller, a display panel, a memory unit, a real-time electronic clock and an information input / output port , two pulse shapers connected to the primary flow converters and the calculator unit, an autonomous power unit connected to the calculator unit, devices about stabilization of the fuel flow installed in the discharge and drain pipelines, a reader connected to the port to output the entire amount of information from the memory unit and enter the volume and density values of the refueling fuel, characterized in that the vehicle’s speed sensor and frequency sensor are additionally introduced into the system engine rotation, fuel level sensor, air flow sensor through the vehicle engine, pressure and ambient temperature sensors, amplifier, en an analog-to-digital converter, a fuel reserve calculator, a CDMA modem and a GLONASS / GPS signal receiver, the vehicle speed sensor, engine speed sensor, fuel level sensor, air flow sensor through the vehicle engine, pressure and temperature sensors ambient air are connected through an amplifier and an analog-to-digital converter to the inputs of the microcontroller of the calculator unit, the GLONASS / GPS-signal receiver is also connected to the input of the microcontroller, and to the inputs / outputs a fuel reserve calculation unit and a CDMA modem are connected, while the microcontroller is programmed with the possibility of accumulating statistics of measurements of the fuel level in the vehicle’s tank, fuel and air consumption by the engine, ambient air temperature and pressure, engine speed, registration of engine start, vehicle movement means of draining / refueling with reference to the geographic coordinates of the terrain of the GLONASS receiver / GPS signals, as well as receiving an electronic address code via the CDMA modem ACS computer companies and transfer to the address of the coded information in real time from the memory of the calculator unit block.