RU164024U1 - EMERGENCY BRAKE DEVICE - Google Patents

Abstract

Emergency braking device, comprising a housing with which the seal housing and the rod guide are rigidly connected, in addition, guides are made in the inside of the housing, inside of which there is a sleeve with a spool, to which the valve is rigidly attached, and to move the sleeve with a spool along its axis a device for opening and a return spring are provided, in addition, a special cap is provided for protection against pollution, in which the stopper is fixed.

Description

The utility model relates to the field of transport engineering, namely to the brake devices of the vehicle, which are used to prevent emergency situations.

A device for emergency braking of a vehicle [RU 2374101 C2, B60T 1/12 (2006.01), B60R 21/02 (2006.01), 11/27/2009], which relates to the field of engineering, in particular to equipment that improves the safety of vehicles in extreme situations. The device is made in the form of a closed volumetric vessel placed symmetrically relative to the longitudinal axis of the vehicle with openings in the front part closed by a membrane and a decorative protective film. A closed volumetric vessel is filled with a non-freezing non-combustible neutral liquid. A pyro cartridge with an electric valve and a liquid presence sensor are installed inside the vessel, which are connected to the microprocessor. The rangefinder, accelerometer and pressure sensor installed in the vehicle’s brake pedal are connected to the microprocessor. The range finder is installed with the ability to hold its optical axis in the direction of motion of the vehicle's center of gravity. EFFECT: prevention of contact with the object or reduction of destructive action in the event of a collision due to additional suppression of the approach speed, as well as the possibility of extinguishing or preventing the fire of vehicles during their collision.

A device for emergency braking of a car [RU 2408480 C2, B60T 1/14 (2006.01), 01/10/2011], which relates to the field of transport engineering, namely, brake devices of a car. The device comprises a frame, a brake unit with pointed elements, and power cylinders. The frame contains brackets pivotally mounted to the rear axle beam or the car body. On each of the brackets a power cylinder with a hydraulic actuator or electric drive is installed. The brackets are rigidly interconnected using the axis on which the thread is made. The brake assembly is made in the form of two rollers with pointed elements. The rollers are internally threaded and placed on an axis, on each side of which a spring is installed between the roller and the bracket. A simplification of the design of the braking device is achieved.

A known brake system and method of regulating braking [RU 2384433 C2, B60T 8/00 (2006.01), 03/20/2010], the system includes a brake pedal and an amplifier unit, a hydraulic unit with an integrated electronic controller, a wheel brake, an electronic hydraulic unit that switches device. The method consists in pre-filling the brake cylinder of the wheel brake in accordance with the function of "anticipatory increase in pressure in the brake system". The function of “proactive pressure increase in the brake system” is activated or deactivated, preferably automatically, depending on the selected operating mode. The technical result is to increase the active safety of the driver.

The technical solutions for emergency braking discussed above reduce the braking time, but do not receive its additional reduction due to the increase in the contact area of the tire with the supporting surface of the road surface.

As a prototype, we consider a device for emergency braking [RU 2475384 C2, B60T 1/04 (2006.01), 02.20.2013], which consists of a housing that is hermetically fixed in the hole of the wheel disc. A conical hole for the valve is made in the body. The valve is rotatable and attached to the body with a pin mounted in an earring with holes. A protrusion made of magnetic material and a return spring connecting the valve to the body are located on the valve, and a signal receiver is attached to the body. EFFECT: reduction of emergency braking time due to rapid depressurization of the wheel tire to the required pressure during emergency braking and, accordingly, increase in the contact area of the wheel tire with the road surface.

The objective of the utility model is to develop an emergency braking device to reduce the braking distance by increasing the contact area of the tire wheel with the road surface.

When vehicles move on paved roads, the tire pressure is strictly regulated by the manufacturer and always remains constant. To increase off-road patency, it is recommended to relieve the pressure in the tires (lower the wheels), while increasing the contact area of the tire with the road surface.

Therefore, by increasing the contact area due to partial depressurization of the tire, the time during emergency braking can also be reduced, while the device for relieving pressure is hermetically fixed to the disk of each wheel of the vehicle and allows you to quickly relieve the pressure in the tire of the wheel to the required pressure during emergency braking.

The device for emergency braking (Fig. 1, 2, 3) consists of a housing 1 with which the seal housing 2 and the rod guide 3 are rigidly connected. In the inner part of the housing 1 there are guides 4. In addition, a sleeve with a spool is made inside the guides 4 5, to which the valve 6 is attached. To move the sleeve with the spool 5 along its axis, a device for opening 7 and a return spring 8 is provided. For protection against pollution, the proposed device has a special cap 9, which is located on the housing 1. For normal wheel rolling in the device provides the ability to install and fix the stopper 10, preventing the movement of the sleeve with the spool 5 relative to the housing 1.

The device operates as follows. The device is tightly installed in the wheel disk similarly to the standard valve, having previously increased the diameter of the seat for the standard valve, or in a pre-drilled hole in the disk. After installing the proposed device, the disk is installed in a tubeless tire and the wheel is inflated with a regular pump through a sleeve with a spool 5, after removing the cap 9 (Fig. 1, 2).

The inflation of the wheel is carried out by a pump through a sleeve with a spool 5, while air is supplied inside the sleeve with a spool 5 into a tubeless tire (Fig. 2).

When the wheel is inflated, it can be lowered due to the translational movement of the sleeve with the spool 5 relative to the housing 1, for example, when connecting the pump hose to the sleeve with the spool 5. To prevent the wheel from lowering, a return spring 8 is provided, which compresses valve 6 to the housing 1, while the valve 6 is rigidly and hermetically connected to the hub with the spool 5. If there is insufficient force of the return spring 8, when pumping the wheel, an additional stopper 10 is installed between the housing 1 and the hub with the spool 5. After pumping the wheels and the stopper 10 is removed, thereby ensuring the operability of the device with a rapid release of pressure in the tires (during emergency braking).

Fixing the stopper 10 in a special cap 9 prevents its loss during maintenance of the wheel.

In addition, an opening device 7 is attached to the spool sleeve 5, which includes a signal receiver (for example, an electromagnet with an autonomous power source, a sensing element and a control unit). The signal source is an emergency braking system, the principle of which is based on recognition of the emergency braking situation by the speed of pressing the brake pedal and the force applied to it.

A device for quickly relieving tire pressure under emergency braking conditions is as follows.

The force and speed of pressing the brake pedal is recorded by the brake pedal speed sensor and transmits a signal to the electronic control unit of the emergency control system.

If the signal value does not exceed the set value, the electronic control unit does not activate the signal receiver, made in each wheel, while valve 6 remains tightly pressed to the housing 1 and there is no depressurization in the tire.

When you sharply press the brake pedal, a signal is received at the signal receiver, while the electromagnet is triggered and opens the valve 6 all the way into the rod guide 3 for a certain period of time, while the tire pressure is released. When this air under pressure passes into the gap between the housing 1 and the sleeve with the spool 5 through the guides 4, providing minimal resistance to the exhaust air, and a special cap 9 (Fig. 3).

After a predetermined time, which determines the required tire pressure, the power supply is disconnected from the electromagnet, while valve 6 closes the hole under the action of the return spring 8. After closing valve 6, the tire pressure relief stops, while the vehicle continues to brake until it stops completely (Fig. 1).

After emergency braking and stopping for the subsequent operation of the vehicle, it is necessary to restore normal tire pressure.

The proposed device can work in conjunction with known anti-lock systems.

The proposed device for emergency braking provides the ability to more quickly reset the vehicle speed during emergency braking by increasing the contact area of the tire with the road surface.

Information sources

1. RU 2374101 C2, B60T 1/12 (2006.01), B60R 21/02 (2006.01), 11/27/2009, Emergency braking device for a vehicle, Anatoly Rybkin.

2. RU 2408480 C2, B60T 1/14 (2006.01), 01/10/2011, Emergency braking device, Vladimir Lapshin, Vitaly Glebovich Asmolsky, Valery Viktorovich Vanin.

3. RU 2384433 C2, B60T 8/00 (2006.01), 03/20/2010, Brake system with an integrated electronic regulator and the function of "anticipatory increase in pressure in the brake system", as well as a method for electronic braking control, Bitz Gerd.

4. RU 2475384 C2, B60T 1/04 (2006.01), 02.20.2013 Device for emergency braking / Shishkin Igor Sergeevich, Sakhnov Andrey Vasilievich, Chernikov Nikolay Yakovlevich.

Claims (1)

Emergency braking device, comprising a housing with which the seal housing and the rod guide are rigidly connected, in addition, guides are made in the inside of the housing, inside of which there is a sleeve with a spool, to which the valve is rigidly attached, and to move the sleeve with a spool along its axis a device for opening and a return spring are provided, in addition, a special cap is provided for protection against pollution, in which the stopper is fixed.

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