Autonomous transport system

• US 6,431,078 B2
• Filed: 12/05/2000
• Issued: 08/13/2002
• Est. Priority Date: 01/13/2000
• Status: Expired due to Term

• Current Assignee: Jorge Serrano
• Original Assignee: Jorge Serrano
• Inventors: Serrano, Jorge
• Primary Examiner(s): Morano, S. Joseph
• Assistant Examiner(s): Olson, Lars A.
• Application Number:
  US09/729,631
• Publication Number:
  US 20010020429A1
• Time in Patent Office: 616 Days
• Field of Search: 104/89, 104/91, 104/93, 104/106, 105/153, 105/156, 105/154, 105/152, 105/150, 105/149.1, 187/245, 187/255, 187/401, 187/404, 187/406, 187/409, 187/411
• US Class Current: 104/91
• CPC Class Codes: B61B 13/00 Other railway systems
• CPC Class Codes: B66B 11/0476 with friction gear, e.g. belt linking motor to sheave
• CPC Class Codes: B66B 9/00 Kinds or types of lifts in, or associated with, buildings or other structures characterised by control systems B66B1/00; apparatus for raising or lowering persons on stages of theatres A63J5/12
• CPC Class Codes: Y02T 30/00 Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

Abstract

An autonomous transport system is disclosed, formed by four main subsystems: a channel subsystem; a vehicle subsystem; a wheel guide subsystem and central control station subsystem. The system is designed for the transportation of people or goods, to be used in tall buildings and in small and large scale urban environments. It comprises unitary vehicles that may move in different directions: horizontal, steeply sloped and also vertical tracks, thanks to novel traction wheel assemblies that roll on carefully designed wheel tracks. The system'"'"'s cabin maintains the horizontal level/position regardless of the changes of track direction or slanting thanks to pendulum based automatic level control and may rotate up to 180° under normal conditions and even a full 360° turn respect to the wheel assembly in space restricted positions. The cabin is mounted on a cantilever, thereby displacing its center of gravity respect of the wheel guides. Thus, a lever action is established, which presses the wheels against the wheel tracks and therefore enough frictional resistance is obtained so as to avoid wheel slippage on the wheel tracks. The vehicles are moved by non-polluting, electric drives that move and stop them with high energy savings. The vehicle runways are designed taking in account safety features against fire hazards. Several vehicles may be used at the same time and on the same track and may run individually or in groups, conforming a train. The system allows for vehicles to be parked in bypassed positions or else they may be disengaged from the convoy to be used individually.

Claims

1. An autonomous transportation system including horizontal, sloped and vertical wheel guide sections connected by transitional or curved wheel guide sections, one or more individual vehicles or groups of chained vehicles forming trains and traveling on said wheel guide sections, each vehicle comprising a traction wheel assembly, a cantilever portion, a cabin comprising a main chassis and an articulated sub-chassis, an engine assembly, a security system, and a leveling system for keeping said cabin horizontal when the vehicle runs along a non-horizontal track;

wherein;

each of said wheel guide sections is formed by two opposed, wheel tracks separated by a structural central portion;

said traction wheel assembly comprising two subsets of wheels, each of said wheels being made by an resilient anti-slippage material and comprising anti-slippage surface design;

each of said wheel tracks forming a rolling track for each of said subset of wheels, said wheel tracks being constructed with an anti-slippage material;

said cantilever portion being engaged at one end to said traction wheel assembly and being engaged to said cabin at its other end by joint means, whereby the center of gravity of the cabin is distant from the longitudinal center axis of the wheel guide thereby forming a lever system which has its force application point at said joint means;

being the combined weight of said cabin and its contents the applied force of said lever system;

whereby at least one wheel of each said subsets of wheels is urged against their corresponding wheel track by pressing forces that result from the torque of said lever system, whereby the frictional forces between said wheels and said wheel tracks avoid wheel slippage when the vehicle is placed on a non horizontal track.

2. The system of claim 1, wherein each of said wheels is urged against said wheel tracks by resilient means for keeping their contact to said wheel tracks when said pressing forces are zero.

3. The system of claim 2, wherein said resilient means are compression springs.

4. The system of claim 1, wherein each subset of traction wheels comprises at least two wheels.

5. The system of claim 4, wherein each subset of traction wheels comprises 5 to 12 wheels.

6. The system of claim 1, wherein said resilient material of each of said wheels is supported on a light alloy material and wherein said resilient material is rubber.

7. The system of claim 1, wherein each of said wheels has contacting resilient surface having a substantially U shaped cross sectional profile.

8. The system of claim 1, wherein each of said wheels has contacting resilient surface having a substantially semicircular cross sectional profile.

9. The system of claim 1, wherein each of said wheels has contacting resilient surface having a substantially parabolic cross sectional profile.

10. The system of claim 1, wherein each of said wheels has contacting resilient surface having a substantially semi-elliptical cross sectional profile.

11. The system of claim 1, wherein said wheels are attached by grooved axles and gears, said gears connecting all the wheels of each subset together.

12. The system of claim 1, wherein said wheels are joined to said articulated sub chassis by axles that pass through from one side to the other of said wheel assembly.

13. The system of claim 1, wherein said wheel assembly comprises grooved axles that join the wheels and gears to said sub-chassis and the latter to said main chassis;

and said wheel assembly also comprises smooth surface axles which allow for the rotation of articulated gears and for the rotation of a turning corrector, wherein said turning corrector provides for articulation of the sub-chassis between any pair of said wheels and works as a support for a connecting coupling gear that links each wheel gear.

14. The system of claim 1, wherein said wheels are attached to said articulated sub-chassis by means of said grooved axles, and said grooved axles also attaching said sub-chassis to said cantilever.

15. The system of claim 1, wherein said grooved axles are fixed to said cantilever by sliding elements retained by springs.

16. The system of claim 1, wherein said wheel subsets are connected to each other by a pair of conic pinions and a differential mechanism joined by a sliding fluting axle for absorbing the displacement of one wheel subset with respect to the other.

17. The system of claim 1, wherein each wheel track has a wheel contacting smooth surface.

18. The system of claim 1, wherein the wheel contacting surface of each wheel track comprises grooves.

19. The system of claim 18, wherein said grooves follow a zigzag design.

20. The system of claim 18, wherein said grooves are generally parallel to the wheel track'"'"'s longitudinal geometrical axis.

21. The system of claim 1, wherein the wheel contacting surface of each of said opposed wheel tracks have a generally semicircular cross section.

22. The system of claim 1, wherein the wheel contacting surface of each of said wheel tracks have a generally U shaped cross section.

23. The system of claim 1, wherein the wheel contacting surface of each of said wheel tracks have a generally parabolic cross section.

24. The system of claim 1, wherein the wheel contacting surface of each of said wheel tracks have a generally semi-elliptical cross section.

25. The system of claim 1, wherein the leveling system comprises at least one axle mechanically coupled to an electric motor reducer through differential gears, for allowing rotation of the cabin.

26. The system of claim 1, wherein the leveling system rotates the cabin through an angle of up to 360°

with respect to said cantilever.

27. The system of claim 26, wherein said leveling system comprises at least one axle coupled to an electric motor reducer by means of a set of differential gears, being said gears positioned on the axis of said joint means that links said cantilever with said cabin.

28. The system of claim 26, wherein said leveling system comprises a pendulum located on a side of said cabin and on a same geometrical axis as said joint means of said cabin.

29. The system of claim 28, wherein said pendulum is immersed in a container filled with glycerine, and being articulated to a secondary lever element.

30. The system of claim 28, wherein said leveling system includes a set of electric contacts connected to an electric motor reducer.

31. The system of claim 29, wherein said container contains liquid movement limiting moles.

32. The system of claim 1, wherein said cabin includes floor indicators, electronic message boards, message speakers, closed circuit TV sets and security video cameras, commanded from a central control station.

33. The system of claim 1, wherein said cabin includes elements for choosing final destination or intermediate stops and a calling system of every terminal stop being handled by a central computer.

34. The system of claim 1, wherein said cabin is mounted on said sub-chassis, the latter having U shaped section and being engaged by said joint means of said cantilevers.

35. The system of claim 1, wherein said cabin comprises more than one access, one at the front and one on each side.

36. The system of claim 1, wherein each of said vehicles includes an autonomous driving engine.

37. The system of claim 36, wherein said driving engine is based on a DC power electric motor.

38. The system of claim 37, wherein said DC power electric motor is used for driving and for stopping the vehicle.

39. The system of claim 1, further including an AC powered three phase motor air compressor and a compressed air supply tank, said compressor supplying with air to said tank.

40. The system of claim 1, further comprising a main control board for controlling electrical power supplies and overall vehicle'"'"'s movements.

41. The system of claim 39, further comprising an hydraulic disk brake and gang, activated by compressed air through a servo mechanism.

42. The system of claim 41, wherein said servo mechanism is controlled by two 12 V DC electric valves which are activated when said motor is turned on and when said cabin arrives to each stop.

43. The system of claim 42, wherein said valves are driven by AC power which is obtained by stepping down the 110 V AC power line.

44. The system of claim 42, wherein one of said valves controls the output of the compressed air from the tank to the servo mechanism and remains open under unexpected power failure, and closes when the engine starts;

and a second servo mechanism opens air supply for unlocking the system.

45. The system of claim 1, wherein said security system comprises an emergency parachute, fixed to a differential gear, and comprising an electromagnet that urges a brake shoe against a set of braking disks by means of two levers with cams on its ends.

46. The system of claim 1, wherein said security system is energized by a 12 V DC electric battery.

47. The system of claim 46, wherein said electric battery further energizes a valve that opens for releasing pressure of a servo mechanism and, at the same time, a valve closes the air supply from an air tank supply, when energy breakdown occurs.

48. The system of claim 47, wherein said vehicle being positioned in a sloped or vertical track, under energy failure comes down to a nearest floor, whereby a floor switch interrupts the circuit letting air enter the servo mechanism and blocking the programmed stops.

49. The system of claim 1, wherein said cabin comprises a movable gangway which moves towards the frame of each floor when the cabin stops on each floor.

50. The system of claim 49, wherein said gangway includes a sealed closing made up of four fireproof membranes, one on the floor, one on the ceiling and one on each side.

51. The system of claim 50, wherein said membranes are fixed at one end to the cabin and are urged by springs at the other end, and comprising a pneumatic piston fed by said air;

levers for pushing four small beams; and

two horizontal rollers and two vertical ones, inserted in each beam.

52. The system of claim 1, comprising switching tracks constructed with the same shaped wheel sections as normal tracks and comprising more than one member.

53. The system of claim 52, wherein said switching tracks are moved by hydraulic cylinders and pistons and include electric couplings, on/off information sensors and remote relays connected to a central control station.

54. The system of claim 1, comprising a security hook on each wheel guide, movable by means of a DC electric motor reducer or by means of an hydraulic device, said hooks being formed by flat hooks that slide over a bolt fixed to said wheel guide through a groove, and each of said hooks comprising a head.

55. The system of claim 54, wherein said security hooks move due to the movement of an eccentric, starting in the axle of said hook and spinning 90°

, thus moving away from the latter, forcing thereby a rotation in a head thereof.

56. The system of claim 1, wherein said wheel guide sections are hollow and able to allow for electricity conductors to be located inside.

57. The system of claim 32, wherein said central control station is controlled by automatic microprocessor based circuitry.

58. The system of claim 32, wherein said central control station is controlled by personal computer local area networks or mainframe computer premises.

59. An autonomous transportation vehicle to be used individually or in groups forming trains and running on wheel guides having wheel tracks, said vehicle comprising a traction wheel assembly, a cantilever portion, a cabin comprising a main chassis and an articulated sub-chassis, a leveling system that keeps said cabin horizontal when the vehicle runs along non-horizontal wheel guides, and an engine assembly, wherein:

said traction wheel assembly comprises two subsets of wheels, each of said wheels being made of a resilient anti-slippage material and comprising anti-slippage surface design;

said cantilever portion being engaged at one end to said traction wheel assembly and being engaged to said cabin at its other end by joint means, whereby the center of gravity of the cabin is distant from the longitudinal geometrical center axis of said wheel guides, and forming a lever system which has its force application point at said joint means;

being the combined weight of said cabin and its contents the applied force of said lever system;

whereby at least one wheel of each said subsets of wheels is urged against their corresponding wheel track by pressing forces that result from the torque of said lever system, whereby the frictional forces between said wheels and said wheel tracks avoid wheel slippage when the vehicle is placed on a non horizontal track.

60. The vehicle of claim 59, wherein each of said wheels is urged against said wheel tracks by resilient means for keeping their contact to said wheel tracks when said pressing forces are zero.

61. The vehicle of claim 60, wherein said resilient means are compression springs.

62. The vehicle of claim 59, wherein each subset of traction wheels comprises at least two wheels.

63. The vehicle of claim 62, wherein each subset of traction wheels comprises 5 to 12 wheels.

64. The vehicle of claim 59, wherein said resilient material of each of said wheels is supported on a light alloy and wherein said resilient material is rubber.

65. The vehicle of claim 59, wherein each of said wheels has contacting resilient surface having a substantially U shaped cross sectional profile.

66. The vehicle of claim 59, wherein each of said wheels has contacting resilient surface having a substantially semicircular cross sectional profile.

67. The vehicle of claim 59, wherein each of said wheels has contacting resilient surface having a substantially parabolic cross sectional profile.

68. The vehicle of claim 59, wherein each of said wheels has contacting resilient surface having a substantially semi-elliptical cross sectional profile.

69. The vehicle of claim 59, wherein said wheels are attached by grooved axles and gears, said gears connecting all the wheels of each subset together.

70. The vehicle of claim 59, wherein said wheels are joined to said articulated sub chassis by axles that pass through from one side to the other of said wheel assembly.

71. The vehicle of claim 59, wherein said wheel assembly comprises grooved axles that join the wheels and gears to said sub-chassis and the latter to said main chassis;

and said wheel assembly also comprises smooth surface axles which allow for the rotation of articulated gears and for the rotation of a turning corrector, wherein said turning corrector provides for articulation of the sub-chassis between any pair of said wheels and works as a support for a connecting coupling gear that links each wheel gear.

72. The vehicle of claim 59, wherein said wheels are attached to said articulated sub-chassis by means of said grooved axles, and said grooved axles also attach said sub-chassis to said cantilever.

73. The vehicle of claim 59, wherein said grooved axles are fixed to said cantilever by sliding elements retained by springs.

74. The vehicle of claim 59, wherein said wheel subsets are connected to each other by a pair of conic pinions and a differential mechanism joined by a sliding fluting axle for absorbing the displacement of one wheel subset respect to the other.

75. The vehicle of claim 59, comprising at least one axle mechanically coupled to an electric motor reducer through differential gears, for allowing rotation of the cabin to keep it leveled.

76. The vehicle of claim 59, comprising a cabin leveling system which enables the cabin to rotate through an angle of 180°

in normal conditions, and up to 360°

in space constraining positions, with respect to said cantilever.

77. The vehicle of claim 76, wherein said leveling system comprises at least one axle coupled to an electric motor reducer by means of a set of differential gears, being said gears positioned on the axis of said joint means that links said cantilever with said cabin.

78. The vehicle of claim 76, wherein said leveling system comprises a pendulum located on a side of said cabin and on the same geometrical axis as said joint means of said cabin.

79. The vehicle of claim 78, wherein said pendulum is contained in a container containing glycerine, and being articulated to a secondary lever element.

80. The vehicle of claim 76, wherein said leveling system comprises a set of electric contacts connected to an electric motor reducer.

81. The vehicle of claim 79, wherein said container includes liquid movement limiting moles.

82. The vehicle of claim 59, wherein the cabin includes floor indicators, electronic message boards, message speakers, closed circuit TV sets and security video cameras, commanded from a central control station.

83. The vehicle of claim 59, wherein the cabin includes elements for choosing final destination or intermediate stops and a calling vehicle of every terminal stop being handled by a central computer.

84. The vehicle of claim 59, wherein the cabin is mounted on said sub-chassis, the latter having U shaped section and being engaged by said joint means of said cantilevers.

85. The vehicle of claim 59, wherein the cabin comprises more than one access, one at the front and one on each side.

86. The vehicle of claim 59, wherein each of said vehicles includes an autonomous driving engine.

87. The vehicle of claim 86, wherein the driving engine is based on a DC power electric motor.

88. The vehicle of claim 87, wherein said DC power electric motor is used for driving and for stopping the vehicle.

89. The vehicle of claim 59, further including an AC powered three phase motor air compressor and a compressed air supply tank, said compressor supplying with air to said tank.

90. The vehicle of claim 59, further comprising a main control board for controlling electrical power supplies and overall vehicle'"'"'s movements.

91. The vehicle of claim 89, further comprising an hydraulic disk brake and gang, activated by compressed air through a servo mechanism.

92. The vehicle of claim 91, wherein said servo mechanism is controlled by two 12 V DC electric valves which are activated when said motor is turned on and when said cabin arrives to each stop.

93. The vehicle of claim 92, wherein said valves are driven by AC power which is obtained by stepping down the 110 V AC power line.

94. The vehicle of claim 92, wherein one of said valves, which controls the output of the compressed air from the tank to the servo mechanism remains open under unexpected power failure, and closes when the engine starts, and a second servo mechanism opens compressed air supply for unlocking the vehicle.

95. The vehicle of claim 59, wherein said vehicle comprises an emergency parachute, fixed to a differential gear, and comprising an electromagnet that urges a brake shoe against a set of braking disks, by means of two levers with cams on its ends.

96. The vehicle of claim 59, wherein said security vehicle is energized by a 12 V DC electric battery.

97. The vehicle of claim 96, wherein said electric battery further energizes a valve that opens for releasing air pressure of a servo mechanism and, at the same time a valve closes the compressed air supply from an air tank supply, under energy breakdown.

98. The vehicle of claim 59, wherein said cabin comprises a movable gangway which moves towards the frame of each floor when the cabin stops on each floor.

99. The vehicle of claim 98, wherein said gangway includes a sealed closing made up of four fireproof membranes, one on the floor, one on the ceiling and one on each side.

100. The vehicle of claim 99, wherein said membranes are fixed at one end to the cabin and being urged by springs at the other end, and comprising a pneumatic piston fed by said air;

levers for pushing four small beams; and

two horizontal rollers and two vertical ones, inserted in each beam.

101. An urban transport method carried out by a vehicle including horizontal and vertical wheel guide sections connected by transitional or curved guide sections, one or more individual vehicles or groups of chained vehicles forming trains and traveling on said wheel guide sections, each of said vehicles having a cabin, a wheel traction assembly running on wheel guides and a leveling system;

the method comprising using one or more of said vehicles inside buildings or outdoors for transporting people or goods;

leveling the cabin'"'"'s position when the vehicle runs along a sloped or vertical wheel guide section to keep the cabin perfectly horizontal with respect to ground by means of said leveling system;

wherein the method further comprises;

mounting each of said cabins on a position distant from the wheel guide central geometrical axis, thereby generating a torque effect that creates forces that urge at least one wheel of each of said wheel subsets against said wheel guides when said vehicle travels along sloped or vertical sections, thus avoiding slipping, being thereby each of said vehicles capable of traveling over horizontal, sloped or vertical guide sections without slipping.

102. The method of claim 101, wherein said one or more vehicles run on indoors wheel guides inside transport channels or run on outdoors wheel guides.

103. The method of claim 101, wherein the stopping positions are automated by pre-programmed schedules, or programmed on passenger'"'"'s selection.

104. The method of claim 101, wherein the routes and schedules for more than one vehicle may be programmed within intervals on a same wheel track.

105. The method of claim 101, wherein the vehicles may be deviated or bypassed by means of switching tracks.

106. The method of claim 101, wherein the vehicles may be added or withdrawn from the different routes.

107. The method of claim 101, further providing complementary wheel tracks for over passing vehicles or as reserve routes.

108. The method of claim 101, further providing static resting spaces to be used for parking said vehicles in maintenance, emergency or normal loading situations.

109. The method of claim 102, wherein said transport channels are blocked against fire and smoke chimney-effect on high buildings by means of fire walls.

110. The method of claim 101, wherein said vehicle uses the engine assembly for driving and for stopping its movement.