RU2501702C1 - Vehicle passenger cabin retainer - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to automotive industry, particularly, to appliances reducing probability of vehicle overturning in crosswise plane. Proposed device comprises storage battery, flexible transducer of vehicle angular position with pendulum and resistance bridge circuit of angular position conversion in electric signal, gas generator pyrocartridge with air cylinder and bridge circuit. Transducer of vehicle angular position comprises two differentially interconnected coil springs. Said pendulum is connected with resistor slide that features variable resistance. Outputs of bridge circuit measuring diagonal are connected to comparator inputs. Comparator output is connected to contactor. Contactor terminals connect storage battery to electromagnet arranged at vehicle roof and connected with hatch cover with wide-meshed net to protect passengers from falling out secured thereat.

EFFECT: higher passive safety.

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Description

The invention relates to mechanical engineering, in particular to systems that ensure passive safety of passengers when capsizing in the transverse plane of a vehicle (for example, buses), due to the automatic actuation of the holding means.

A known system for automatically stabilizing the position of a vehicle (for example, a wheeled tractor), which is designed to maintain the vertical position of the skeleton of the vehicle. The stabilization system includes: a pendulum type stabilizer, executive hydraulic cylinders with shut-off valves, a stabilization system shut-off valve, a flow divider and control devices. The units of the stabilization system are located in various places of transport and are interconnected by metal pipelines and hoses (Ksenevich I.P. et al. MT3-80 tractor, its modifications, M., Agromizdat, 1991, p. 266-268).

The disadvantages of the automatic stabilization system include: its large weight - about 15 kg, the complexity of maintenance associated with the bulkiness and installation of additional hydraulic cylinders, oil lines, distributor and other details, each type of transport requires its own set of elements of the automatic stabilization system.

Another device is known (SU, a.s. 816849, class B62D 49/08), in which to prevent the vehicle (such as a wheeled tractor) from tipping over, an angular position sensor filled with an electrically conductive liquid (such as mercury) in U- a shaped tube with side electrodes connected to a power source (for example, a generator), a source of sound and light signal. In addition, the device has: an intermediate relay, electromagnetic actuating power elements (solenoids), the cores of which are mechanically connected to the clutch and brake pedals by means of two-arm levers. A circuit breaker is installed in the intermediate relay control circuit.

This device is not without flaws. The device uses a substance harmful to health - mercury; large weight of the device, more than 6 kg; a large number of electrical appliances (for example, relays, etc.); limited functionality due to the fact that this device only works with an unstable position of the vehicle in the longitudinal or transverse planes; Each transport requires its own devices and device elements.

A device is known for preventing rollover of a vehicle (RU, US Pat. 2423280 C1, class B62D 49/08, B60K 28/14, B.Yu. Kalmykov, V.I. Bogdanov. - No. 201006915/11; claimed 24.02.2010 ; publ. July 10, 2011, Bull. No. 19. - 7 pp., ill.). This device is selected as a prototype.

On the roof of the vehicle body (for example, bus), an anti-tipping unit is installed, connected to the sensor of the angular position relative to the longitudinal axis (roll) of the body with the control unit. The sensor is a converter of the angular position of the vehicle and contains two coil springs differentially connected to each other, the upper end of the pendulum is fixed to its axis, its lower end is connected to a resistor slider with a variable resistance value of one of the arms of the resistive bridge circuit, the terminals of the measuring diagonal of the bridge circuit are connected to the inputs of the control unit, consisting of a comparator, contactor and battery. The output of the comparator is connected to the contactor, its contacts connect the battery to the squib with a gas generator, connected to the pneumatic cylinder. When the vehicle body is tilted at an angle exceeding the critical value, the control unit connects to the current source a gas generator squib mounted on the anti-tipping unit. The igniter is activated by igniting the ignition charge, which ignites the buoyant charge, the resulting gas enters the pneumatic cylinder and pushes the rod with a stop fixed at its end. The vehicle body continues to change its position relative to the longitudinal axis until the abutment contacts the abutment surface of the vehicle wheels.

The prototype device has a drawback: despite preventing the vehicle from tipping over onto the roof, unfastened passengers in the passenger compartment may lose stability and result in personal injury.

The objective of the invention is to develop a device that holds the passengers of vehicles (for example, buses) when they capsize.

The problem is solved as follows. The holding means of the passenger compartment of the vehicle contains a direct current source - a battery, a vehicle angular position transducer, consisting of two coil springs differentially connected to each other, to the axis of which the upper end of the pendulum is fixed, its lower end is connected to a resistor slider with a variable resistance of one from the shoulders of the resistive bridge circuit, the conclusions of the measuring diagonal of the bridge circuit are connected to the inputs of the comparator, the output of the comparator connected to the contactor, its contacts connect the battery to the gas generator chuck with a pneumatic cylinder connected to a mechanical anti-tipping unit containing a piston that extends the rod with end spring clips and an emphasis, characterized in that the contacts connect the battery to an electromagnet located on the roof of the vehicle body and associated with a locking device that opens the hatch, from which drops a large mesh network that keeps passengers from falling.

The technical result that can be obtained by implementing the present invention is to expand the functionality by providing the vehicle with a holding means. This prevents the fall of passengers and the likelihood of injury, and therefore increases the passive safety of vehicles (for example, buses).

Figure 1 shows the arrangement of the elements of the holding means of the passenger compartment of the vehicle. An angular position sensor 8, an electromagnet 2, a bracket for securing the network 3, a decorative panel 9 with a hatch 6, fixed on one side to hinges 7, and on the other a locking device 10 connected to an electromagnet 2, are attached to the roof of the vehicle body 1 of the vehicle. Between the roof 1 and a decorative panel 9 contains a coarse mesh network 4, which is fixed at one end to a bracket 3 for securing the network.

The actuation of the holding means occurs when the angular position changes relative to the longitudinal axis (roll) of the vehicle body, which is fixed by the angular position sensor 8.

The electromagnet 2 is connected to the angular position sensor 8 through the control unit 5. The angular position sensor 8 is a vehicle angular position transducer and contains two coil springs differentially connected to each other, the upper end of the pendulum is fixed to its axis, its lower end is connected to the resistor slider with a variable resistance value of one of the arms of the resistive bridge circuit, the conclusions of the measuring diagonal of the bridge circuit are connected to the inputs of the comparator, the output is compar the ator is connected to the contactor, its contacts connect the battery 11 to the electromagnet 2. The electromagnet 2 retracts the shaft of the locking device 10, after which the hatch 6 opens, turning on the hinges 7. The coarse mesh network 4 falls under the influence of gravity into the passenger compartment.

The work of the proposed retaining means of the passenger compartment of the vehicle is as follows.

During operation of the vehicle, the current value of the angle of heel of the body is determined by the angle sensor 8 (figure 2). In the event that the current value of the angle of heel of the body becomes equal to or exceeds by a small amount the critical value, the control unit 5 will connect the battery 11 to the electromagnet 2. Electromagnet 2 will retract the shaft of the locking mechanism 10, after which the hatch 6 will open, turning on the hinges 7. Coarse network 4 under the action of gravity falls into the passenger compartment.

The proposed technical solution will provide passive safety of the vehicle, protection of the life and health of the driver and passengers when capsizing the vehicle in the transverse plane.

Claims (1)

The holding means of the passenger compartment of the vehicle, containing a direct current source - a battery, a vehicle angular position transducer, consisting of two helical springs differentially connected to each other, to the axes of which the upper end of the pendulum is fixed, its lower end is connected to a variable resistor slider the resistance of one of the shoulders of the resistive bridge circuit, the conclusions of the measuring diagonal of the bridge circuit are connected to the comparator inputs, the compar output the ora is connected to the contactor, its contacts connect the battery to the gas generator squib with a pneumatic cylinder connected to a mechanical anti-tipping unit containing a piston that extends the rod with end spring clips and an emphasis, characterized in that the contacts connect the battery to an electromagnet located on the roof of the vehicle body and associated with a locking device that opens the hatch, from which drops a large mesh network that keeps passengers from falling.

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