JPod Chassis Specification – Type C (battery powered)
Purpose: The purpose of this specification is to define the functional requirements of the JPod chassis for a passenger JPod.
Definitions: JPod – a small vehicle, electric motor driven, suspended and supported from an overhead rail
Bogie – the electric motor carriage that runs inside the overhead rail and from which the JPod chassis is hung. The bogies includes power distribution electrical equipment and a computer.
Chassis – the compartment that carries the payload (i.e. people, cargo, etc.)
JPod Systems Codes and Standards
The following codes and standards apply to the design and construction of the JPod chassis:
Code / Standard
Standard Practice for Design of Amusement Rides and Devices
National Fire Protection Association
National Electrical Code
Automated People Mover Standards
Space Envelope & Weight Limit
The JPod chassis shall fit within the space envelop shown in drawing 0001D0042, latest revision. The total chassis weight shall not exceed 700 pounds.
- The JPod shall seat 4 adults. Two people will face forward and two people will face rearward with their knees toward the center of the J pods chassis.
- There shall be one door in one side of the chassis for people to enter and exit.
- There shall be a touch screen operator interface inside the compartment to take commands and provide information.
- There shall be a closed circuit video camera inside the compartment to record passenger activities to permit subsequent billing for intentional damages.
- The front and both sides shall have windows. (optional: the side windows may slide partway open to provide natural ventilation)
- The chassis shall have interior lighting using LEDs.
- There shall be an accessible, but out of normal reach, emergency stop button.
- Thermostat (used to start and stop heat pump) to automatically adjust to passenger comfort.
- The door shall lock prior to the JPod beginning motion. Lock override via encrypted command.
- The passenger compartment shall have a fire extinguisher. (CO2 type preferred)
The JPod chassis interfaces to two overhead supported bogies. Each bogie has a swivel ring which will be attached to a clevis on the top of the J pods chassis. Clevis must accommodate a swivel ring which is ½ inch thick.
The underside of the JPod chassis shall have a “catcher” groove as shown on drawing 0001D0042. The groove will catch a horizontal wheel at the loading station which prevents the JPod from moving side to side during loading and unloading.
A power cable leads from the J pods chassis battery pack up to each of the J pods bogies. Power conditioning and distribution is accomplished within the J pods bogies.
A power cable leads down from the bogie into the J pods chassis to provide power for the lighting, HVAC, passenger touchscreen, door operator and locks, closed-circuit TV camera and miscellaneous sensors.
Instrumentation cables run between the bogie and the passenger touchscreen and various sensors.
The bogie includes the transceiver used for communication with other J pods, switches, and loading stations.
Room shall be available outside of the passenger compartment but inside of the space envelop to install components to support JPod operation
- 48 VDC battery pack, accessible from outside of the JPod chassis
- Backup/bridging batteries from instrumentation and radio
- Battery charging connections
- Heat pump with fan. (optional: air cooling)
- Ductwork from heat pump into passenger compartment
- Power & signal wiring
- The chassis shall hang from two supports, one front and one rear.
- The chassis shall have two lateral stabilizer arms, one on each side, with rollers that will run along small guide rails adjacent to the main JPod bogie rail..
- The front and the rear of the chassis shall have bumpers to permit pushing the JPod along the rail by a rescue JPod.
- The top of the chassis shall have provisions for mounting sensors to detect RFID tags installed along the main rail.
- The chassis exterior surfaces shall not crack or craze due to exposure to weather conditions over the temperature range of -40°F to 110°F. This includes direct sunlight, snow, hail, and high winds.
- The chassis shall have exterior, decorative lights.
- The chassis shall be rainproof with its windows and door closed.
- The lateral support arms shall resist wind loads up to 90 mph without permanent deformation.
- The chassis structure shall be able to support combined chassis and payload weight of 1700 pounds.
- The chassis and its structure shall not develop any fatigue cracking when exposed to unlimited number of 0.4g starts and stops.
- The power budget for the bogies is 4.5 kWe. All remaining electrical consumption must be less than or equal to 2.5 kWe.
- Passenger compartment temperature is permitted to vary between 64°F and 80°F, depending upon outside temperature extremes and sunlight intensity.
Images of passenger envelop:
Images of various styles of vehicles: