WO2017165929A1 - Auxiliary emergency braking system for automotive vehicles - Google Patents
Auxiliary emergency braking system for automotive vehicles Download PDFInfo
- Publication number
- WO2017165929A1 WO2017165929A1 PCT/BR2016/050065 BR2016050065W WO2017165929A1 WO 2017165929 A1 WO2017165929 A1 WO 2017165929A1 BR 2016050065 W BR2016050065 W BR 2016050065W WO 2017165929 A1 WO2017165929 A1 WO 2017165929A1
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- WIPO (PCT)
- Prior art keywords
- bag
- braking
- friction
- vehicle
- emergency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/12—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting otherwise than by retarding wheels, e.g. jet action
- B60T1/14—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting otherwise than by retarding wheels, e.g. jet action directly on road
Definitions
- the present invention relates to the automotive technical field and more specifically to an auxiliary braking system that significantly decreases the braking distance in emergency situations.
- the braking system currently in use consists of:
- the aim of the present invention is to reduce the braking distance in emergency situations by increasing friction between the floor and one or more inflatable pockets fixed under the vehicle.
- the conventional braking system in conjunction with the ABS / EBD system, besides performing the traditional functions, would also issue a command for the activation of the auxiliary braking system.
- the auxiliary braking system consisting of one or more inflatable pockets attached to the vehicle.
- this initially collected pouch (s) would be ejected, inflated and placed in contact with the floor.
- the increased friction generated by the emergency auxiliary braking system plus the friction between tires and tread will significantly decrease the braking distance and avoid a large number of accidents.
- Figures 1 to 5 represent some possible positions of the bag under the vehicle, and there may be variations in both the position and the number of bags.
- Figure 6 is a plan view and sectional view of the final assembly of the ready-to-use emergency auxiliary braking system.
- Figure 7 is a plan view and sectional view of the activated / in use emergency auxiliary braking system.
- the invention will be described generally for a passenger vehicle, which in turn has variables such as size, weight, aerodynamics, etc.
- the pouch (A) has a "bladder / ball” shape with a nozzle (Al) for filling.
- the bag will be packed in a wrapper (B).
- the wall of the bag in contact with the housing shall be properly secured (glued or other means of attachment) to transmit the mechanical braking forces to the vehicle housing and chassis (E).
- the construction material as well as its thickness shall be specified to withstand the stresses arising from the filling (internal pressure) and the mechanical braking forces resulting from the contact (friction) with the floor (see Figure 7, item G).
- the system adopted in this particular embodiment will be sized to obtain a tread contact area equal to or greater than the sum of the contact area of the four tires with the tread. .
- the bag should be at least 900cm 2 , ie equivalent to a sphere of 34cm in diameter.
- the contact area of each pocket may be reduced, and the sum of the contact areas each scholarship must be equal to or greater than the example given above.
- Increasing the amount of bags could also be used to increase the contact area (above the 900cm 2 cited in the example) for better braking performance.
- the housing (B) is intended for:
- the enclosure should be securely attached to the vehicle chassis to prevent the risk of rupture of the enclosure as well as the chassis.
- the construction material shall be of suitable metal, industrial fibers, or engineering plastics.
- a protective cover (A2) will be installed sealing the container to protect the system against dryness, dirt, etc.
- the protective cover (A2) will be destroyed by the bag when it is activated (see figure 7, item A2). Therefore the material and attachment of the protective cap should be adequate so as not to hinder the ejection of the pouch.
- the pressurized air and / or gas reservoir (C) is intended for:
- the bag will be inflated through the existing nozzle (Al), reaching the projected dimensions and shape, as well as the proper pressure of contact with the floor, aiming at the optimization of the desired friction.
- the reservoir will have the necessary accessories for its operation, ie air and / or gas control / release valve for the bag, monitoring sensors and interface.
- the interface shall have the function of receiving the signal from the vehicle's existing braking system when in emergency condition in order to operate the system (item D, figure 6).
- the accessories described above Upon completion of emergency braking, the accessories described above will release air and / or gas from the bag. Such a condition will allow the vehicle to move to a suitable location for proper system maintenance.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
Description
D E S C R I Ç Ã O DESCRIPTION
Titulo: Sistema de frenagem auxiliar de emergência para veículos automotivos. Title: Emergency auxiliary braking system for automotive vehicles.
Domínio técnico relacionado com a invenção: Technical domain related to the invention:
A presente invenção é relacionada ao domínio técnico automotivo e mais especificamente a um sistema de frenagem auxiliar que diminui significativamente a distancia de frenagem em situações de emergência. The present invention relates to the automotive technical field and more specifically to an auxiliary braking system that significantly decreases the braking distance in emergency situations.
Técnica anterior: Prior Art:
O sistema de frenagem em uso atualmente consiste de: The braking system currently in use consists of:
-Pedal de freio acionado pelo motorista, ou eventualmente por um sistema autónomo (como por exemplo, o carro do Google, atualmente em fase de teste); o qual aciona um sistema destinado a frenagem junto às rodas/pneus. - Brake pedal operated by the driver, or possibly by an autonomous system (such as the Google car, currently under test); which drives a system for braking near the wheels / tires.
-Em casos de frenagem de emergência/brusca, um conjunto de acessórios (ABS e -In case of emergency / sudden braking, a set of accessories (ABS and
eventualmente EBD) entram automaticamente em ação, visando administrar a frenagem de cada roda/pneu, obtendo assim uma frenagem o mais eficiente possível. eventually EBD) automatically come into action to manage the braking of each wheel / tire, thus achieving the most efficient braking possible.
-A frenagem é então obtida através do atrito do pneu com o solo, sendo limitada pelo efeito -The braking is then obtained through the tire's friction with the ground, being limited by the effect
"derrapagem", ou seja, caso a necessidade de frenagem ultrapasse a limitação de aderência do pneu no solo, teremos uma "derrapagem" com consequente aumento da distancia de frenagem. "skid", ie if the need for braking exceeds the tire grip limit on the ground, we will have a "skid" with a consequent increase in the braking distance.
Divulgação da invenção: Disclosure of the invention:
A técnica anterior, conforme descrição acima, será totalmente mantida/preservada sendo que o sistema da presente invenção será agregado à mesma. The prior art as described above will be fully maintained / preserved and the system of the present invention will be added thereto.
O objetivo da presente invenção é diminuir a distancia de frenagem em situações de emergência através do incremento de atrito entre o piso e uma ou várias bolsas infláveis fixadas sob o veiculo. The aim of the present invention is to reduce the braking distance in emergency situations by increasing friction between the floor and one or more inflatable pockets fixed under the vehicle.
De acordo com a presente invenção, em casos de frenagem de emergência/brusca, o sistema de frenagem convencional (em conjunto com o sistema ABS/EBD) além de desempenhar as funções tradicionais, emitiria também um comando para o acionamento do sistema de frenagem auxiliar, composto por uma ou várias bolsas infláveis fixadas sob o veiculo. According to the present invention, in case of emergency / abrupt braking, the conventional braking system (in conjunction with the ABS / EBD system), besides performing the traditional functions, would also issue a command for the activation of the auxiliary braking system. , consisting of one or more inflatable pockets attached to the vehicle.
Uma vez o sistema acionado, através de acessórios tais como válvula de controle e reservatório de ar e/ou gás pressurizado, essa bolsa(s) a principio recolhida, seria ejetada, inflada e colocada em contato com o piso. Once the system is operated, through accessories such as a control valve and pressurized air and / or gas reservoir, this initially collected pouch (s) would be ejected, inflated and placed in contact with the floor.
O contato dessa bolsa inflada com o piso, mediante uma pressão de contato adequada, irá provocar um atrito de proporções iguais ou superiores ao atrito convencional entre os pneus e o piso. Contact of this inflated bag with the tread, by means of adequate contact pressure, will cause friction of proportions equal to or greater than the conventional friction between the tires and the tread.
O incremento de atrito gerado pelo sistema de frenagem auxiliar de emergência, somado ao atrito entre pneus e piso, irá diminuir a distancia de frenagem de forma significativa e evitando um grande numero de acidentes. The increased friction generated by the emergency auxiliary braking system plus the friction between tires and tread will significantly decrease the braking distance and avoid a large number of accidents.
Descrição dos desenhos: Description of the drawings:
Figuras de 1 a 5 representam algumas posições possíveis da bolsa sob o veiculo, podendo haver variações tanto na posição quanto no numero de bolsas. Figures 1 to 5 represent some possible positions of the bag under the vehicle, and there may be variations in both the position and the number of bags.
Figura 6 representa vista em planta e corte da montagem final do sistema de frenagem auxiliar de emergência pronto para uso. Figura 7 representa vista em planta e corte do sistema de frenagem auxiliar de emergência acionado/em uso. Figure 6 is a plan view and sectional view of the final assembly of the ready-to-use emergency auxiliary braking system. Figure 7 is a plan view and sectional view of the activated / in use emergency auxiliary braking system.
Melhor maneira de executar a invenção: Best way to execute the invention:
Tendo em vista a grande gama de aplicação (veículos de passeio, carga, etc) a invenção será descrita genericamente para um veiculo de passeio, o qual por sua vez apresenta variáveis tais como tamanho, peso, aerodinâmica, etc. In view of the wide application range (passenger vehicles, cargo, etc.) the invention will be described generally for a passenger vehicle, which in turn has variables such as size, weight, aerodynamics, etc.
Portanto não será descrita uma execução especifica/detalhada da invenção e sim os itens do sistema de frenagem auxiliar de emergência, conceitos aplicados e resultados esperados. Para efeitos de simplicidade, na descrição a seguir será adotado o modelo representado pela figura 1, ou seja, um sistema composto por apenas uma bolsa. Therefore a specific / detailed embodiment of the invention will not be described but the items of the emergency auxiliary braking system, applied concepts and expected results. For simplicity, in the following description the model represented by figure 1 will be adopted, that is, a system composed of only one bag.
I- Características da bolsa (figura 6): I- Characteristics of the bag (figure 6):
A bolsa (A) apresenta um formato de "bexiga/bola", contando com um bico (Al) para o seu enchimento. The pouch (A) has a "bladder / ball" shape with a nozzle (Al) for filling.
A bolsa será acondicionada em um invólucro (B). The bag will be packed in a wrapper (B).
A parede da bolsa em contato com o invólucro será devidamente fixada (colada ou outro meio de fixação), visando transmitir os esforços mecânicos da frenagem para o invólucro e chassi do veiculo (E). The wall of the bag in contact with the housing shall be properly secured (glued or other means of attachment) to transmit the mechanical braking forces to the vehicle housing and chassis (E).
O material construtivo, bem como sua espessura, será especificado para suportar os esforços decorrentes do enchimento (pressão interna) e esforços mecânicos de frenagem decorrentes do contato (atrito) com o piso (ver figura 7, item G). The construction material as well as its thickness shall be specified to withstand the stresses arising from the filling (internal pressure) and the mechanical braking forces resulting from the contact (friction) with the floor (see Figure 7, item G).
A fim de se obter resultados significativos na redução da distancia de frenagem, o sistema adotado nessa execução em particular, será dimensionado de modo a obter uma área de contato com o piso igual ou superior à somatória da área de contato dos quatro pneus com o piso. Por exemplo, se cada pneu apresenta uma área de contato de 225,0 cm2 (12,5X18 cm) teremos uma área total de contato de 900cm2 (225cm2X 4 pneus). Portanto a bolsa deverá ter no mínimo 900cm2, ou seja, equivalente a uma esfera de 34cm de diâmetro. In order to achieve significant results in reducing the braking distance, the system adopted in this particular embodiment will be sized to obtain a tread contact area equal to or greater than the sum of the contact area of the four tires with the tread. . For example, if each tire has a contact area of 225.0 cm 2 (12.5X18 cm) we will have a total contact area of 900cm 2 (225cm 2 X 4 tires). Therefore the bag should be at least 900cm 2 , ie equivalent to a sphere of 34cm in diameter.
Se no exemplo descrito acima for adotado um sistema com mais de uma bolsa, conforme figuras de 2 a 5, para se obter o mesmo resultado de frenagem, a área de contato de cada bolsa poderá ser reduzida, sendo que a somatória das áreas de contato de cada bolsa deverá ser igual ou superior ao exemplo citado acima. O aumento da quantidade de bolsas poderia também ser utilizado para aumentar a área de contato (acima dos 900cm2 citados no exemplo), visando um melhor desempenho de frenagem. If in the example described above a system with more than one pocket is adopted, as shown in figures 2 to 5, to obtain the same braking result, the contact area of each pocket may be reduced, and the sum of the contact areas each scholarship must be equal to or greater than the example given above. Increasing the amount of bags could also be used to increase the contact area (above the 900cm 2 cited in the example) for better braking performance.
II- Características do invólucro (figura 6) II- Characteristics of the enclosure (figure 6)
O invólucro (B) tem por finalidade: The housing (B) is intended for:
-Abrigar a bolsa e preservar sua integridade, -House the bag and preserve its integrity,
-Receber os esforços mecânicos provenientes da bolsa durante a frenagem e transmitir os mesmos para o chassi do veiculo (E), efetivando a frenagem do veiculo. -Receive the mechanical forces coming from the bag during braking and transmit them to the vehicle chassis (E), effectively braking the vehicle.
O invólucro deverá ser fixado convenientemente no chassi do veiculo, visando prevenir riscos de rompimento do invólucro e também do chassi. The enclosure should be securely attached to the vehicle chassis to prevent the risk of rupture of the enclosure as well as the chassis.
Para tanto, o material construtivo deverá ser de metal adequado, fibras industriais, ou plásticos de engenharia. For this purpose, the construction material shall be of suitable metal, industrial fibers, or engineering plastics.
A parede da bolsa em contato com o invólucro será devidamente fixada, através de colagem e/ou suportes adequados, visando a transmissão dos esforços mecânicos citados acima. Após a instalação da bolsa no interior do suporte, será instalada uma capa de proteção (A2) selando o recipiente, visando a proteção do sistema contra ressecamento, sujeiras, etc. The wall of the bag in contact with the casing will be properly fixed, by gluing and / or appropriate supports, aiming at the transmission of the mechanical forces mentioned above. After installing the bag inside the holder, a protective cover (A2) will be installed sealing the container to protect the system against dryness, dirt, etc.
A capa de proteção (A2) será destruída pela bolsa quando esta for acionada (ver figura 7, item A2). Portanto o material e fixação da capa de proteção deverão ser adequados para não dificultar a ejecção da bolsa. The protective cover (A2) will be destroyed by the bag when it is activated (see figure 7, item A2). Therefore the material and attachment of the protective cap should be adequate so as not to hinder the ejection of the pouch.
III- Características do reservatório de ar (figura 6) III- Characteristics of the air reservoir (figure 6)
O reservatório de ar e/ou gás pressurizado (C) tem por finalidade: The pressurized air and / or gas reservoir (C) is intended for:
-Armazenar uma quantidade adequada de ar e/ou gás devidamente pressurizado, visando a ejecção e enchimento da bolsa. -Store an adequate amount of properly pressurized air and / or gas for ejection and filling of the bag.
A bolsa será inflada através do bico (Al) existente na mesma, atingindo as dimensões e formato projetados, bem como a pressão adequada de contato com o piso, visando a otimização do atrito pretendido. The bag will be inflated through the existing nozzle (Al), reaching the projected dimensions and shape, as well as the proper pressure of contact with the floor, aiming at the optimization of the desired friction.
-O reservatório contará com os acessórios necessários ao seu funcionamento, ou seja, válvula de controle/liberação do ar e/ou gás para a bolsa, sensores de monitoramento e interface. A interface terá por função receber o sinal proveniente do sistema de frenagem existente no veiculo, quando em condição de emergência a fim de acionar o sistema (item D, figura 6). -Após a conclusão da frenagem de emergência, os acessórios descritos acima liberarão o ar e/ou gás da bolsa. Tal condição permitirá que o veículo possa locomover-se até um local adequado para a devida manutenção do sistema. -The reservoir will have the necessary accessories for its operation, ie air and / or gas control / release valve for the bag, monitoring sensors and interface. The interface shall have the function of receiving the signal from the vehicle's existing braking system when in emergency condition in order to operate the system (item D, figure 6). Upon completion of emergency braking, the accessories described above will release air and / or gas from the bag. Such a condition will allow the vehicle to move to a suitable location for proper system maintenance.
IV- Resumo da montagem do sistema de frenagem auxiliar de emergência: IV- Assembly summary of the emergency auxiliary braking system:
Após a confecção das partes do sistema descritas nos itens I, II, e III o sistema será montado conforme descrição abaixo: After making the system parts described in items I, II, and III the system will be assembled as described below:
-Acondicionamento e fixação da bolsa no invólucro B e selamento deste conjunto com a capa de proteção da bolsa A2, -Packaging and securing the pouch to housing B and sealing this set with the pouch protection cover A2,
-Instalação do reservatório de ar e/ou gás pressurizado (com os devidos acessórios) sobre o invólucro, -Installation of the pressurized air and / or gas tank (with appropriate accessories) on the enclosure,
-Fixação adequada do conjunto, descrito no item anterior, no chassi do veiculo, - Proper attachment of the assembly, described in the previous item, in the vehicle chassis,
-Conexão do cabo de controle para sinal/comando do conjunto. -Connection of control cable for signal / set command.
Após os procedimentos acima, o sistema está finalizado, conforme figura 6. After the above procedures, the system is finished, as shown in figure 6.
V- Operação do sistema: V- System operation:
Estando o veiculo equipado com o sistema descrito no item IV, o mesmo poderá ser submetido a testes de frenagens de emergência onde: If the vehicle is equipped with the system described in item IV, it may be subjected to emergency braking tests where:
-O sistema será testado em diversas velocidades e variações no piso (regular, irregular, seco e molhado). -The system will be tested at various speeds and variations on the floor (regular, uneven, dry and wet).
Após cada teste de frenagem o sistema apresentará a configuração representada na figura 7, devendo ser submetido a manutenção adequada, visando seu restabelecimento operacional. -Será realizada a medição da distancia percorrida pelo veiculo em cada teste de frenagem, sendo comparado com dados disponíveis do veiculo nas mesmas condições, porem sem o sistema de frenagem auxiliar de emergência. After each braking test the system will present the configuration shown in figure 7, and must be subjected to proper maintenance, aiming at its operational reestablishment. -The measurement of the distance traveled by the vehicle will be performed in each braking test, being compared with available vehicle data under the same conditions, but without the emergency auxiliary braking system.
-A comparação dos resultados irá demonstrar uma redução significativa na distancia de frenagem em situações de emergência, decorrente do incremento de atrito entre o piso e a bolsa. - Comparison of the results will demonstrate a significant reduction in braking distance in emergency situations due to increased friction between the floor and the bag.
-Através dos dados obtidos e observando-se o desempenho dos vários itens do sistema, poderão ser feitos ajustes adequados, tais como pressão de enchimento da bolsa, reposicionamento do sistema no chassi, utilização de uma ou várias bolsas, etc, visando a otimização do projeto em cada caso e cada tipo de veiculo a ser equipado. - Through the data obtained and observing the performance of the various system items, appropriate adjustments may be made, such as bag filling pressure, repositioning the system in the chassis, using one or several pockets, etc., aiming at optimizing the project in each case and each type of vehicle to be equipped.
Nota: Embora a invenção tenha sido descrita acima em relação a uma forma de execução ou concretização possível, deve-se entender que várias outras variações e modificações podem ser feitas dentro do escopo da presente invenção. As reivindicações a seguir, irão cobrir essas modificações e variações. Note: Although the invention has been described above with respect to a possible embodiment or embodiment, it should be understood that various other variations and modifications may be made within the scope of the present invention. The following claims will cover these modifications and variations.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/BR2016/050065 WO2017165929A1 (en) | 2016-03-28 | 2016-03-28 | Auxiliary emergency braking system for automotive vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/BR2016/050065 WO2017165929A1 (en) | 2016-03-28 | 2016-03-28 | Auxiliary emergency braking system for automotive vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017165929A1 true WO2017165929A1 (en) | 2017-10-05 |
Family
ID=59962332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/BR2016/050065 Ceased WO2017165929A1 (en) | 2016-03-28 | 2016-03-28 | Auxiliary emergency braking system for automotive vehicles |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2017165929A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110901606A (en) * | 2018-09-17 | 2020-03-24 | 虞如亮 | Belt-shaped auxiliary brake device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3994369A (en) * | 1975-05-08 | 1976-11-30 | Lawrence Peska Associates, Inc. | Emergency vehicle brake |
| US6401876B1 (en) * | 1999-05-24 | 2002-06-11 | James A. Boros | Vehicle emergency brake and anti-jackknife system |
| US7882921B2 (en) * | 2004-08-24 | 2011-02-08 | Sam Hakki | Collision air bag and flotation system |
| US8827047B2 (en) * | 2011-07-19 | 2014-09-09 | University Of Florida Research Foundation, Incorporated | Ground-engaging vehicle braking system and methods for using the same |
-
2016
- 2016-03-28 WO PCT/BR2016/050065 patent/WO2017165929A1/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3994369A (en) * | 1975-05-08 | 1976-11-30 | Lawrence Peska Associates, Inc. | Emergency vehicle brake |
| US6401876B1 (en) * | 1999-05-24 | 2002-06-11 | James A. Boros | Vehicle emergency brake and anti-jackknife system |
| US7882921B2 (en) * | 2004-08-24 | 2011-02-08 | Sam Hakki | Collision air bag and flotation system |
| US8827047B2 (en) * | 2011-07-19 | 2014-09-09 | University Of Florida Research Foundation, Incorporated | Ground-engaging vehicle braking system and methods for using the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110901606A (en) * | 2018-09-17 | 2020-03-24 | 虞如亮 | Belt-shaped auxiliary brake device |
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