This application claims the benefit of U.S. Patent Application No. 63/237,028, filed Aug. 25, 2021, which is incorporated by reference herein in its entirety.
This disclosure relates to a system for operating individual rail vehicles on rail tracks.
Traditional railway infrastructure is underutilized as it is highly limited by common signaling and switching systems, being the primary bottlenecks in preventing continuous vehicle flow. Existing railways typically accommodate freight trains and scheduled passenger trains, with large gaps between each as they are required to maintain substantial headway distances. The necessity of these headway distances results from two primary factors. Due to their heavy mass and little friction with the tracks, stopping distances are exceptionally long and reduced headways would increase the probability of collision. In addition to this, conventional wayside switching actuation is slow, and necessitates around one unit of stopping distance for rail traffic as well. Improvements to the use and operation of railway infrastructure are desirable.
This disclosure is directed to a system of independently operating rail vehicles, which is optimum in terms of energy efficiency, convenience, and safety.
An object of the invention, according to a first aspect, is providing a system of independently operating rail vehicles, the system including an on-demand, self-actuating rail vehicle mobility system for the transport of passengers and goods, including rail corridors with a nonstop, continuous stream of vehicles travelling at a specified speed, railway vehicles and roadway vehicles modified to drive on railway tracks, infrastructure-to-vehicle power supply systems, simplified types of railway track installations, high-speed corridors and system entry facilities for roadway vehicles, goods and passengers; additionally, an installation of railway infrastructure on roadway surfaces for the creation of a railway corridor isolated from roadway vehicle traffic.
According to a second aspect, systems and methods are provided for transporting roadway vehicles along the system without modification using a self-propelled platform vehicle, the method being such that it includes a self-propelled platform vehicle driving on rails to transport roadway vehicles along the rail tracks, having a design such that the platform surface has an optimal loading position setting and optimal driving position setting, components for fastening roadway vehicles to the platform, infrastructure-to-vehicle power system collection components, wheel slip prevention components, and vehicle coupling mechanisms.
According to a third aspect, systems and methods are provided for the use of existing road vehicles in a rail vehicle system, the method being such that it includes one or more of the following technologies, including a railway wheel which fits onto roadway vehicle hub connections, enabling the modification of roadway vehicles, enabling them to drive on rail tracks, a sub-vehicle frame assembly having attachment points for the mounting of components beneath the vehicle, a mechanical self-switching assembly having extending pins, making contact with the sides of rail tracks to orient the vehicle when necessary, an electrified rail collection wheel assembly using an electrically conductive bearing-pin assembly and insolating mounting components, and/or an extendable cog gear mounted to the vehicle to prevent wheel slip of the main vehicle wheels.
According to a fourth aspect, systems and methods are provided for favorable implementation of infrastructure for the rail vehicle system as defined earlier for vehicle operation, the method being such that it includes one or more of the the following technologies, including a semi-enclosed apparatus containing an conductive infrastructure-to-vehicle power supply contact surface and cog rack infrastructure, an assembly of metal or steel flats or pieces installed on a roadway surface facilitating the travel of railway vehicles, as well as the continued use of the roadway by roadway vehicles, and/or a track junction or switch which can facilitate the operation of a vehicle-mounted mechanical self-switching assembly.
The following is a detailed description of various embodiments of the present invention. The aforementioned drawings are referenced to serve as some, not all, of the visual embodiments of the invention. It should be understood that all description and drawings are to be considered exemplification of the invention and is not intended to limit the invention to the specific embodiments described and illustrated below.
The systems and methods described herein, and individual components thereof, should not be construed as being limited to the particular uses or systems described herein in any way. Instead, this disclosure is directed toward all novel and non-obvious features and aspects of the various disclosed embodiments, alone and in various combinations and subcombinations with one another. For example, any features or aspects of the disclosed embodiments can be used in various combinations and subcombinations with one another, as will be recognized by an ordinarily skilled artisan in the relevant field(s) in view of the information disclosed herein. In addition, the disclosed systems, methods, and components thereof are not limited to any specific aspect or feature or combinations thereof, nor do the disclosed things and methods require that any one or more specific advantages be present or problems be solved.
As used in this application the singular forms “a,” “an,” and “the” include the plural forms unless the context clearly dictates otherwise. Additionally, the term “includes” means “comprises.” Further, the term “coupled” or “secured” encompasses mechanical and chemical couplings, as well as other practical ways of coupling or linking items together, and does not exclude the presence of intermediate elements between the coupled items unless otherwise indicated, such as by referring to elements, or surfaces thereof, being “directly” coupled or secured. Furthermore, as used herein, the term “and/or” means any one item or combination of items in the phrase.
As used herein, the term “exemplary” means serving as a non-limiting example, instance, or illustration. As used herein, the terms “e.g.,” and “for example,” introduce a list of one or more non-limiting embodiments, examples, instances, and/or illustrations.
Unless explained otherwise, all technical and scientific terms used herein have the same meaning as commonly understood to one of ordinary skill in the art to which this disclosure belongs. Although methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present disclosure, suitable methods and materials are described below. The materials, methods, and examples are illustrative only and not intended to be limiting. Other features of the disclosure are apparent from the detailed description, claims, abstract, and drawings.
Rail transportation has the potential to be a highly effective solution to high traffic volumes as a form of high-density, sustainable transportation for widespread use. To become an attractive option for travelers, physical and technological improvements can be developed to address current limitations. Vehicle stopping distances will be reduced if lighter vehicles are used, more so if a cog gear system is utilized, preventing wheel slip.
Additionally, reassigning switching mechanisms to vehicle components would provide vehicle users with simple control of route alteration without the need for centralized line control. These changes could facilitate a highly flexible, on-demand transportation system, similar to existing road vehicle systems.
Environmentally sustainable transportation is not widely used. This is because there are significant issues with existing sustainable systems. Electrified rail transport is most notably difficult to access for most travelers, due to inflexible routes, schedules and points of system entry. In regions with highly developed railway systems, rail transportation usually only accounts for around twenty percent of personal transportation due to these issues of convenience and logistics.
In populated areas, a rail-based system is likely to be more feasible, popular and cost-effective than a fully electric road vehicle system. This results from several fundamental shortcomings of existing electric automobiles.
Batteries for electric road vehicles typically require highly refined materials, making them expensive and difficult to recycle. Electrified rail vehicles can easily facilitate a catenary wire or third-rail grid connection, likely negating the need for a chemical battery and reducing overall vehicle weight. A grid connection would also increase the maximum rate of energy recaptured during regenerative braking. Rail vehicles also experience less energy loss to friction than road vehicles, as the rolling resistance experienced by steel wheels on rails is approximately one tenth of that for rubber tires on a road. The overall efficiency of a rail-based electric vehicle system will require substantially less grid power generation, and therefore result in lower emissions than an equivalent road-based system.
Many other issues with electric road vehicles remain unresolved, including scarcity of charging locations and relatively high vehicle cost. These concerns may prevent electric automobiles from becoming a highly accessible alternative to conventional transportation systems, and therefore pose a major challenge to the widespread adoption of environmentally sustainable transportation.
Disclosed herein are systems that utilize automobiles and similar vehicles on a railway as a low-energy alternative to road vehicles and air transport for private individuals and businesses. Novel systems that enable automobile and electric automobile owners to modify existing vehicles to operate in a rail-based mobility system are described herein.
Such systems can include, as described herein, one or more of the following:
Repurposing existing roadway infrastructure for the rail system can substantially decrease installation time and infrastructural cost. The flattening and paving of a compacted ground surface is already an intermediate step of track installation in some modern methods.
Described herein is a new system of rail transportation that provides greater societal benefits than existing modes of environmentally sustainable transport. The system can use modified automobiles, and other similar vehicles, which operate on-demand for users without necessity for centralized control, signalization, or route planning. The system includes various novel technologies to facilitate the improved introduction of such a system into widespread use.
Vehicles on the system can operate on-demand based on user requests, without prior system scheduling. Users are able to access the system at system points of entry, using a hailing or rental service, or by simply initiating a vehicle route plan in the case of vehicle ownership. The rail vehicle can then semi-autonomously execute the route plan using wirelessly transmitted data including line speed, line closures and track junction information. Vehicles can actuate vehicle self-switching at track junctions based on the initiated route plan and centrally transmitted line data. Users can actively modify vehicle route selection without requiring approval or communication from a central control system.
The introduction of this system can begin with a single line installation, periodically adding line connections with new mainline track junctions, connecting residential and commercial areas around the mainline for additional points of system access.
In some embodiments, a grid connection via an onboard power collection system, and/or conductive contact with a third-rail or catenary wire system along the tracks can be utilized. Total vehicle energy use can be substantially reduced because of this method of power delivery. Substantial energy savings can also be achieved using steel wheels on steel rails, substantially reducing energy losses due to friction in comparison to road vehicles.
As conventional automobiles currently exist in abundance, the system will allow the use of modified conventional and electric automobiles to accelerate system access. Much of the technology in this invention has been created for the effective facilitation of these modifications.
Railway replacement wheels for an automobile can be installed with relative ease and allow immediate rail capabilities for an automobile on which they have been installed. These wheels disclosed herein can provide both the hub connection sections of road wheels and the contact surfaces of railway wheels.
In some embodiments, the wheels can have a similar profile to conventional automobile wheels, surrounding vehicle braking assemblies, allowing the original assemblies to be used for braking when using rail tracks.
A third-rail or catenary wire power collection system can be added. For example, in some embodiments a moving arm with conductive wires and a conductive contact surface can be added, as well as internal wire connections to motor controllers and electrical circuitry.
In some embodiments, a self-switching system can be installed on the vehicle prior to their driving on the system. In one implementation, the vehicle self-switching actuating assembly can comprise roller wheels which extend down and make contact with the outer surface of rail tracks prior to a track junction.
An alternative to automobile modification for use in the system is a self-propelled automobile rail platform, as discussed herein. In this embodiment, road vehicles will be able to drive onto platforms at specified locations along the line, and use the rail system similarly to modified automobiles driving directly on the system. The automobile rail platform will allow road vehicles to drive on road surfaces for journey segments where rails are not available, and quickly transfer onto the rail system at aforementioned locations. Road vehicles can be secured manually or automatically to the automobile rail platform using integrated fastening components. The self-propelled automobile rail platform will use third-rail or catenary wire power collection equipment for electrical traction, and conventional railway wheels or other wheels similar to railway replacement wheels for an automobile.
As disclosed herein, a semi-enclosed vehicle power delivery system may be used in the system. This system will reduce the risk of accidental electrical conduction and electrification. The assembly comprises an outer non-electrified enclosure, which surrounds an electrically conductive contact assembly, partially surrounded by electrically insulating materials. Vehicles will have power collection components which enter the enclosure to make contact with contact components, facilitating electrical conduction between the vehicle and power delivery system. The semi-enclosed vehicle power delivery system may comprise a cog rack for vehicle component interaction, preventing vehicle wheel-slip on the rails.
New technology and efficient methods for line installation can provide for improved installation feasibility. As described herein, rail lines can be installed on existing roadway infrastructure, and create more useful transportation corridors. This has previously not been possible with conventional rail, given the great forces imparted on infrastructure by conventional rail vehicles.
Installing steel flats on a roadway surface for rail vehicles can facilitate mixed-use road and rail vehicle traffic lanes, or alternating use lanes. Using steel flats as rails, likely for lower-speed lines on residential streets can allow greater mainline access, and more favorable points of system entry for travelers. Installation of the flat rails would also be simpler, less expensive, and use spaces which are already designated for vehicle use.
To prepare the steel flats for use as effective rail tracks, extensions and fittings may be added which will aid in the installation and fastening of the assembly. Following this, one side of the rail flats may be placed atop a roadway surface and given optimal positioning prior to installation using bolts or other fastening devices. Once one side of the flat rails has been fastened to the roadway, the opposite side may be placed and roughly aligned with the first. Measuring devices may then be used to more accurately align the second rail assembly. Once this step is completed, the fasteners may be installed one at a time, confirming that optimal spacing is maintained whilst installing each of the fasteners.
Portions of existing roadway infrastructure may also be converted for use solely by rail vehicles, with tracks and equipment accommodating high-speed rail vehicles in the invention. This conversion would involve the installation of railway tracks and support components, as well as fasteners, electrification equipment, sensing equipment, telecommunications equipment, and rail corridor isolation equipment, such as trenches, walls and other barriers. The repurposing of road surfaces for the rail vehicles may allow greater infrastructural usefulness, and a relatively economical means of expanding public access to sustainable transport.
With a converted roadway rail installation, travelers using the rail system may save substantial time compared to those taking equivalent journeys in adjacent road vehicles using some of the same superstructures. Rail vehicles are capable of traveling safely at much higher speeds than road vehicles. Introducing autonomous driving technology would also be much simpler for rail vehicles, as they need not account for many of the variables required to facilitate safe driving on a roadway. The isolation barriers of the converted roadway will also decrease the probability of incidents and external interference on the rail line.
The above objects and benefits of the various mobility systems described herein are further illustrated by the following descriptions and discussion of the figures.
An off-ramp 14 is shown in the isolated freeway corridor, with a track junction 15 for vehicles leaving the isolated freeway corridor, and a main track 16 is provided on the isolated freeway corridor. Another main track 17 is provided for traffic in the opposing direction in the isolated freeway corridor. A barrier 18 dividing roadway vehicle traffic from the isolated freeway corridor of the proposed mobility system can also be provided.
A depression 23 can be provided between road vehicle lanes and rail vehicle lanes to prevent road vehicle incidents from interfering with rail system operation. A portion 24 of roadway surface can be provided to continue to facilitate road vehicle traffic. In this regards, a road vehicle 25 is show traveling adjacent to a rail line which has been installed on the motorway.
Railway tracks 29 can be used by the platform vehicle to transport the roadway vehicle along with railway wheels 30 of the platform vehicle. A coupling mechanism 31 of the platform vehicle can also be provided.
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In view of the many possible embodiments to which the principles of the disclosed invention may be applied, it should be recognized that the illustrated embodiments are only preferred examples of the invention and should not be taken as limiting the scope of the invention. Rather, the scope of the invention is defined by the following claims. I therefore claim as my invention all that comes within the scope and spirit of these claims.
Filing Document | Filing Date | Country | Kind |
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PCT/US2022/041600 | 8/25/2022 | WO |
Number | Date | Country | |
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63237028 | Aug 2021 | US |