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BR-102025004170-B1 - Independent emergency braking system and process for cargo vehicles.

BR102025004170B1BR 102025004170 B1BR102025004170 B1BR 102025004170B1BR-102025004170-B1

Abstract

INDEPENDENT EMERGENCY BRAKING SYSTEM AND PROCESS FOR CARGO VEHICLES. This patent application relates to an independent emergency braking system (1) separate from the vehicle's original braking system, preferably intended for cargo and transport vehicles, configured to operate manually in case of failure of the vehicle's main braking system. The independent emergency braking system (1) separate from the vehicle's original braking system comprises a mounting structure (2), fixed to the vehicle chassis, which serves as a support for a braking platform (4), configured to be moved vertically until it comes into contact with the ground, promoting braking of the vehicle by friction. The braking platform (4) is supported by an air bag (12) and has a rubber sheet (18) on its lower base (14), intended to increase friction with the ground. The activation of the independent emergency braking system (1) from the vehicle's original brake system is performed manually by the driver using a lever (37) located in the vehicle's cabin (C), whose operation gradually releases compressed air stored in an independent reservoir (CI), which has a check valve (VR) and is supplied by an air compressor (CA)(...).

Inventors

  • AMARO CARLOS XIMENES FILHO

Assignees

  • ALESSANDRA VENERONI PINTO DELLA TORRE
  • AMARO CARLOS XIMENES FILHO
  • CRISTIANE VENERONI PINTO FLAQUER ROCHA

Dates

Publication Date
20260317
Application Date
20250228

Claims (5)

  1. 1) INDEPENDENT EMERGENCY BRAKING SYSTEM FOR CARGO VEHICLES, consists of an independent emergency braking system (1) equipped with temperature sensors (35), an independent cylinder (CI), an air compressor (CA), a brake chamber (6) and a monitoring device (D) with a lever (37), a screen (36) and a pressure gauge (MN), characterized by an independent compressed air reservoir (CI) connected to a check valve (VR), powered by an air compressor (CA) from the vehicle's original system; a mounting structure (2) configured in an elongated rectangular “U” shape (3), composed of a metal profile, containing a receiving crossbar (5), a brake chamber (6), a ratchet (7) and a primary eyelet (O1); a braking platform (4), articulated to the fixing structure (2) by means of bearings (MA), having a tubular structure (8) with two parallel arms (9) interconnected by a pivoting axis (10), a support axis (11) arranged transversely between the parallel arms (9), and an air bag (12) mounted between the support axis (11) and an axis (33) fixed to the fixing structure (2) by fixing supports (34); a lower base (14) coupled to the parallel arms (9) by means of an inverted “U” profile (15), containing a secondary eyelet (O2), a central curvilinear support (16) provided with an orifice (OF) and a rear angled flap (17), the lower base (14) being covered by a rubber sheet (18); an axis (22) of the cuíca (6), disposed in the receiving crossbar (5), being movable in a hollow central channel (29) provided with holes (30), configured for coupling to the hole (OF) of the central curvilinear support (16); also, the axis (22) of the cuíca (6) being provided with a sleeve (V) containing a locking pin (PN1); a steel cable (CB) connected to an axis (25) of the ratchet (7), having a hexagonal tip (26), the axis (25) being supported by semicircular supports (23) provided with circular holes (24).
  2. 2) INDEPENDENT EMERGENCY BRAKING SYSTEM FOR CARGO VEHICLES, according to claim 1, is characterized by the ratchet (7) being provided with a movement limiting device (28), equipped with a locking pin (PN2).
  3. 3) INDEPENDENT EMERGENCY BRAKING SYSTEM FOR CARGO VEHICLES, according to claim 1, is characterized in that the angled rear tab (17) of the lower base (14) is configured integrally with the body of the lower base (14).
  4. 4) INDEPENDENT EMERGENCY BRAKING SYSTEM FOR CARGO VEHICLES, according to claim 1, is characterized by the rubber sheet (18) being fixed in an adherent manner to the lower base (14), following its shape.
  5. 5) PROCESS, by the independent emergency braking system (1) described in claim 1, having a process comprising the step: - (a) With temperature sensors (35) installed close to the original brake system on the vehicle's rear axle, monitoring the temperature, when they detect that the temperature reaches critical levels, the temperature sensors (35) send this information to the monitoring device (D), which displays it on the screen (36) installed in the vehicle's cabin (C); when the temperature exceeds the pre-established limits, the monitoring device (D) activates a visual and audible alert, instructing the driver to manually activate the independent emergency braking system (1) by means of a lever (37); The monitoring device (D) has a pressure gauge (MN), which monitors the pressure of the independent air reservoir (CI), and is characterized by the following steps: - (b) The independent air reservoir (CI) contains a check valve (VR), which allows the independent reservoir (CI) to be constantly supplied with compressed air, preventing air from returning to the system in case of problems with the hose (M); - (d) When detecting a failure in the original brake, the driver gradually activates the lever (37), releasing the flow of compressed air stored in the independent air reservoir (CI) to the hose (M), which directs the compressed air to the brake chamber (6); - (e) The brake chamber (6), upon receiving the compressed air, retracts its shaft (22), which is introduced into the holes (30) of the hollow central channel (29) of the receiving crossbar (5) and into the hole (OF) of the central curved support (16); (f) Once free, the brake platform (4) begins its downward movement to the ground, being pushed by the air bag (12), which receives compressed air by pulling the lever (37), until the rubber sheet (18) of the brake platform (4) comes into contact with the ground; (g) After the brake platform (4) makes contact with the ground and stops the vehicle, the driver makes the necessary repairs to the vehicle's original brake system; (h) After using the brake platform (4), the driver returns the platform to its resting position, placing the lever (37) in the upper position, deflating the air bag (12); then uses a conventional torque tool (FX), fitting it onto the hexagonal end (26) of the shaft (25), connected to the ratchet (7), equipped with a movement limiting device (28), equipped with a locking pin (PN2); When rotating the conventional torque tool (FX), the steel cable (CB) is wound around the shaft (25), gradually raising the braking platform (4) until the hole (OF) of the central curved support (16) aligns with the shaft (22) of the brake chamber (6); - (i) If the hole (OF) of the central curved support (16) passes the point of the shaft (22) of the brake chamber (6), the driver will need to lock the movement limiting device (28), freeing the ratchet (7), by means of the locking pin (PN2), to realign the hole (OF) of the central curved support (16) with the shaft (22) of the brake chamber (6); - (j) Once the hole (OF) of the central curved support (16) is aligned with the shaft (22) of the brake chamber (6), the driver unlocks the locking pin (PN1), contained in the sleeve (V), allowing the shaft (22) advance and be passed through and fitted into the holes (30) of the hollow central channel (29) of the receiving crossbar (5) and into the hole (OF) of the central curved support (16) performing the locking of the braking platform (4);- (k) Once the operation is completed, the driver reinserts the steel cable (CB) into the primary eyelet (O1), fixed to the lower left of the fixing structure (2).

Description

FIELD OF THE INVENTION [001] This patent application relates to an emergency braking system independent of the vehicle's original braking system, suitable for cargo and passenger transport vehicles, configured to operate in case of failure of the main braking system. The field of application is focused on the automotive industry, but particularly on heavy vehicles that use air brake systems. The present invention aims to provide safety and control in the braking of cargo vehicles, promoting safe and efficient braking of the vehicle in case of complete failure of the main braking system, with manual operation by the driver, ensuring greater operational reliability in order to reduce the risk of accidents. In addition, the system also includes a brake temperature monitoring device, composed of temperature sensors installed on the axles, and a temperature indicator monitor in the driver's cabin, which will emit an audible warning to the driver in case of overheating. Thus, the driver will have the option of stopping the vehicle to cool the brakes and, if it is not possible to stop the vehicle and a failure of the original brake occurs; The driver activates a lever that lowers the vehicle's braking platform, which, upon contact with the ground, reduces the speed until the vehicle comes to a complete stop. BACKGROUND OF THE INVENTION [002] Braking systems used in cargo and moving transport vehicles are mostly classified into two main types: air brake systems and disc brake systems. This patent application is directed to cargo and passenger transport vehicles. [003] The air brake system operates by using compressed air. When the brake pedal is pressed, compressed air is released to the brake cylinders, pressing the brake pads against the brake discs or drums, thus reducing the vehicle's speed. This type of system is known for its reliability and is widely adopted in applications that demand robustness. In addition, heavy vehicles equipped with air brake systems also have an emergency brake, intended for use in critical situations, such as failures in the main system. This brake is manually activated by means of a lever, button or pedal located in the vehicle's cabin. Activation releases the compressed air stored in the system, directing it to the rear brakes, pressing the pads against the brake drums or discs and generating the friction necessary to reduce speed. The emergency brake remains locked until it is manually deactivated, which occurs by releasing the lever or pedal, allowing the release of compressed air from the rear brakes. [004] In parallel, advanced active safety technologies, such as the Autonomous Emergency Braking (AEB) system, have been developed to complement conventional braking systems. The AEB system uses a combination of sensors, such as cameras, radar, and ultrasound sensors, to constantly monitor the area around the vehicle. These sensors analyze the distance and speed of objects ahead, calculating the reaction time needed to avoid a collision. When an imminent collision is detected, the system emits visual and audible alerts to the driver and can pre-load the brakes to reduce response time. [005] If the driver does not react to the warnings or does not brake sufficiently, the AEB system automatically applies the brakes, gradually reducing the vehicle's speed to minimize the impact of a collision. After the impact, the system can activate additional safety functions, such as activating the hazard lights, shutting off the engine, or locking the doors, in order to protect the vehicle's occupants. [006] Although existing systems offer significant improvements in safety, failures in the main braking system continue to pose critical risks. Thus, there is a need for additional solutions that ensure safety and braking efficiency in cargo and transport vehicles, regardless of the performance of the main system. PROBLEM TO BE SOLVED. [007] The main air brake systems in heavy vehicles, despite their efficiency and durability, can present critical failures that compromise vehicle safety and braking capacity. Among the main problems identified, the following stand out: - Brake overheating occurs in situations of intense and prolonged braking, such as during steep descents or in heavy traffic. The excessive heat generated under these conditions can cause deformation or warping of the brake discs, reducing the system's efficiency and increasing the braking distance. In extreme cases, overheating can result in the total loss of braking capacity; - Air leaks in the brake system are common and can result in a reduction of the air pressure available for brake actuation. Frequent causes include damaged hoses, loose connections, or defective valves; - Excessive wear of brake linings/brake pads is a recurring problem, especially in vehicles that do not undergo regular inspections and maintenance. This wear and tear compromises the efficiency of the braking system, increasing the risk of failures during use; -