RU2763854C1 - Apparatus for determining the full weight of the vehicle - Google Patents

Abstract

FIELD: measuring equipment.SUBSTANCE: invention relates to weighing equipment and can be used in the automotive and aircraft building industry. The apparatus comprises strain gauges installed in the tyres of the vehicle, pressure sensors, the sensing elements whereof are connected with the inner cavities of the tyres, a generator, a multi-channel amplifier, an analogue-to-code converter, a memory unit, a code-to-analogue converter, an information display apparatus installed on the dashboard of the vehicle, a magnetic generator, and a synchronous generator.EFFECT: achieved high efficiency.1 cl, 2 dwg

Description

The invention relates to weighing equipment and can be used in the automotive and aircraft industries.

It is known for its practical use of a device for determining and recording the mass of cargo transported in the body of a dump truck containing strain gauge weight sensors, body position sensors, a generator, a control strain gauge, a phase shift meter, a multichannel amplifier, a signal calibration unit, an adder, an analog-to-code converter, a corrector zero, comparison node, control unit, single count indicator, light signaling unit, mass counter, flight number counter and radio communication equipment [1].

The disadvantages of this device is the inability to determine the total mass of the vehicle, which depends not only on the weight of the cargo carried in the body, but also on the number of passengers carried in the cabin of luggage, attachments, etc., as well as low power.

The closest in technical essence is a weighing transport device [2], the principle of operation of which is based on the application of the method of the sum of signals to compensate for the influence of the angular evolutions of the body of the object.

The use of such devices is limited by the inability to achieve high efficiency by using the energy of DC electromagnets and the relatively low output power provided by the generator.

The objective of the invention is to create a device alternative to the known technical solution [2], which simultaneously ensures the achievement of high efficiency by using the energy of DC electromagnets and increasing power.

The required technical result is achieved by the fact that the proposed device for determining the total mass of the vehicle contains strain gauge sensors installed in the tires of the vehicle, pressure sensors, the sensing elements of which are connected to the internal cavities of the tires, a generator, a multichannel amplifier, an analog-to-code converter, a memory unit, a converter an analogue code, an information display device installed on the vehicle dashboard, as well as a magnetic generator and a synchronous generator [3, 4].

In FIG. 1 shows a diagram of the installation of a strain gauge in a vehicle tire, and Fig. 2 is a block diagram of the device for determining the total mass of the vehicle.

The device for determining the total mass of the vehicle contains:

1 - strain gauges;

2 - vehicle tires;

3 - pressure sensors, the sensitive elements of which are connected to the internal cavities of the tires;

4 - generator;

5 - multichannel amplifier;

6 - analog-to-code converter;

7 - memory block;

8 - converter code-analogue;

9 - information display device installed on the dashboard of the vehicle;

10 - magnetic generator;

11 - synchronous generator.

The device for determining the total mass of the vehicle works as follows: under the weight of the vehicle, the tires of 2 wheels are deformed. The deformation of tires 2 wheels depends both on the mass of the vehicle and on the air pressure in the tires 2. From the generator 4, from the magnetic generator 10 and from the synchronous generator 11, the corresponding signals are fed to the inputs of strain gauges 1 and pressure sensors 3, ensuring the operation of the device with high power and ensuring the achievement of high efficiency by using the energy of DC electromagnets. The signals from the strain gauges 1 and pressure sensors 3 are fed into the multichannel amplifier 5. From the output of the multichannel amplifier 5, the signals are fed to the analog-to-code converter 6 and then to the memory unit 7. Thus, the memory unit 7 receives two signals from each tire 2: one from the strain gauge sensor 1 and the other from the pressure sensor 3. The number of pairs of signals entering the memory block 7 is equal to the number of vehicle tires. The memory unit 7 is an electronic microprocessor system. The values of the vehicle mass are entered into its memory, which must correspond to a given combination of signals coming from sensors 1, 3. Based on the signals from the sensors, the memory unit 7 selects a code from the memory that corresponds to this combination of signals. This code is the encoded value of the vehicle mass corresponding to this combination of signals. From the block 7 of the memory - this encoded value of the mass is supplied to the converter 8 code-analogue, and from it to the device 9 for displaying information installed on the dashboard of the vehicle. If necessary, the driver reads this information from the device.

The combinations of sensor signals and the corresponding encoded mass values are recorded in the memory of the memory unit 7 at the factory by loading the vehicle with reference loads of different masses with different locations of the vehicle's center of gravity and reading signals from sensors 1, 3 for each loading option.

In comparison with the prototype, the use of this invention due to the introduction of magnetic and synchronous generators 10 and 11 will achieve high efficiency by using the energy of DC electromagnets and increase the power of the device.

Sources of information:

1. SU 630531 A1, 1978.

2. RU 2046300, 1995.

3. RU 2507667, 2014.

4. RU 2525847, 2014.

Claims (1)

A device for determining the total mass of the vehicle, containing strain gauges installed in the tires of the vehicle, pressure sensors, the sensitive elements of which are connected to the internal cavities of the tires, a generator, a multichannel amplifier, an analog-to-code converter, a memory unit, a code-to-analogue converter, an information display device installed on the dashboard of the vehicle, characterized in that it additionally introduced a magnetic generator and a synchronous generator, and the output of the magnetic generator is connected by a direct connection to the inputs of strain gauges and pressure sensors, and the output of the synchronous generator, in turn, is also connected by a direct connection to the inputs strain gauges and pressure sensors.

Images