Numbers to Know
Dimensions of the car (all three)
length = 5 meters; height = 1.6 meters; width = 1.8 meters. Minimum height is 1 meter.
How many centimeters of clearance must there be between any devices in the battery box and the exhaust?
3 cm
There must be at least 3 cm of clearance between any devices inside the battery enclosure and both the intake and exhaust of the battery enclosure
An oral presentation of the car must be submitted to show the team's progress
True or False
Teams shall prepare an oral presentation describing their solar car project. The team will have up to 8 minutes to give a full statement about the team’s project.
Teams will be awarded up to 20 miles for the quality of their presentation
and answers to judge questions upon qualification into the event.
What is a BMS and what is it used for?
It is a Battery Management System and it makes sure none of the cells within the battery overcharges. It keeps it charging evenly.
How many pages was the rule book?
32
What is the range of the ratio of the track?
0.5 - 1.0
It is recommended for vehicle stability that
the ratio of the track (distance between the front wheels, measured at the center point of
the tire footprint) to the wheel base (distance from front to rear wheels, measured at the
center point of the tire footprint) be no less than 0.5 to 1.0
How tall must the crush-zone be?
30 cm
Left side and right side crush zone structures must be at least 30 cm tall and encompass the driver’s lower torso.
The roll bar must be welded to the frame at a minimum of three points on each side of the driver
True or False
False
The roll bar must be welded to the frame at no less than two points on each side
What is the plate called that protects the driver from the debris kicking up from the road ?
A belly pan
The cockpit must be equipped with a full belly pan to isolate the driver from the
road.
Without making provisions, how many students will be given ID tags by the event.
12
The event will provide each team with identification tags for up to 12 team members and 2 chaperones per team. Larger teams must make arrangements with the sponsor prior to arriving at the event.
Max distance between crush zone and driver
15 cm of horizontal distance
Supercharged means charging a battery above what percent of it's nominal voltage?
16%
Electrical Tape may be used to insulate propulsion wiring
True or False
False
What is an HV Enclosure and what is to be located in it?
It is a compartment electrical equipment is contained.
The main fuse must be within the HV (High Voltage) Enclosure which is 15 cm away from the outside of the battery box
How many sections were in the rule book?
33
How many times should the air in the battery box be vented per minute?
4
The driver at a minimum must see how many centimeters above the ground?
In the normal driving position, each driver's eyes must be a minimum of 70cm above the ground.
A wire carrying 28 volts may be within the drivers compartment
True or False
True
No wire conducting more than 36 volts may be located within the driver’s compartment.
What is a safety cell and what does it do?
It is series of bars that protect the drivers feet, legs, torso, and head.
Final Jeopardy. Make Your Wagers
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What is the maximum size of the supplemental battery?
There are none.
There are no regulations limiting the type, voltage, or weight of supplemental batteries.
The driver must be able to see how far in front the of car on the ground, and how many degrees to the rear?
The driver must be able to see 8 meters on the ground in front of the car and 45 degrees on each side (90 degrees total) in the rear
If a car is going 20 mph and stops within 2.75 seconds, it is within the rules
True or False
False
At 20 mph, the driver must be able to bring the vehicle to a safe, controlled stop in no more than 2.5 seconds
What is cockpit egress?
It is the exit process of the solar car.
Each driver must be able to demonstrate that unassisted egress can be achieved in less than 15 seconds in the event of an emergency.
What material has the smallest minimum size for the walls of the roll bar, and what is that size?
Chromoly Steel, 1mm