Electrifying Knowledge: Tractive System Quiz
Electrifying Knowledge: Tractive System Quiz
Test your understanding of crucial tractive system components and safety regulations with this comprehensive quiz. Designed for engineering enthusiasts and professionals alike, it covers everything from the accumulator configuration to high voltage disconnects.
Let's see if you can distinguish fact from fiction! The quiz features:
- Multiple choice questions
- Focused on safety and technical specifications
- Challenging scenarios to boost your knowledge
1) The team decides to implement the TSAL circuit and the Discharge Circuit in the same PCB. Given that the maximum voltage of the team is 357V, what is the maximum permitted distance between the circuits when there is a cut in the board.
3.2mm
6.4mm
9.5mm
None of the above
2) What is NOT true about the TSMPs.
TS+ and TS- must be directly connected to the positive and negative pole of the accumulator container
TS+ and TS- wires must be orange
Next to the master switches an LV+ and an LV Ground measurement point must be installed
If the Maximum Voltage of the team is 357V the current limiting resistor must be between 5kOhm to 15kOhm
3) What is NOT true about the TSAL (Tractive System Active Light)
The TSAL must be lower than 150mm from the highest point of the main hoop
Software control of the TSAL is not permitted
If the accumulator isolation relays (AIRs) are open the TSAL must be green in color and continuously illuminated
The TSAL must not be able to contact the drivers helmet in any circumstances
What is true about the steering wheel of Iris’ car which is made from carbon fiber (semiconductive material):
It must have a resistance below 5 Ohm to LVS Ground
It must have a resistance below 0.3 Ohm (measured with a current of 1 A) to LVS ground
It does not need to be grounded
5) If the segment of the accumulator container has a configuration of 16s2p (16 series and 2 parallel) lithium based cells, how many temperature sensors can be installed in every segment (the parallel cells are considered as one cell)
3
4
5
6
6) Which ONE of the following Relays is Normally Closed in the de-energized/disconnected state.
IMD Relay
AMS Relay
Discharge Relay
Precharge Relay
What is true about the charger
The charger must be orange
The emergency stop button must have a minimum diameter of 40mm
The TSMPs of the charger must be connected to the charger’s output
When charging the IMD must be live and must be incorporated inside the charger
What is NOT true about the maintenance plugs
It must not be physically possible to electrically connect the maintenance plugs in any way other than the design intent configuration.
Maintenance plugs must not require tools to separate the TS accumulator segments.
Maintenance plugs must be orange
Maintenance plugs must be non-conductive on surfaces that do not provide any electrical connection
What is NOT true about the accumulator indicator light
Software control of the indicator is permitted
The indicator must be clearly marked with “Voltage Indicator”
Instead of a LED Indicator a Voltmeter can be used
If a team has maximum high voltage 100V, the indicator must be non-illuminated when the voltage of the accumulator container is 55V
Which sentences are NOT true about the accumulator container
The TS accumulator container must consist of electrically insulating internal vertical walls with a minimum of 70 % of the height of the external vertical walls
All TS accumulator container materials must be fire retardant
The AIRs and the Main Fuse must be separated with an electrically insulated and fire retardant material
Each TS accumulator segment must not exceed a maximum static voltage of 100 VDC, a maximum energy of 6 MJ and a maximum mass of 12 kg
The maximum voltage of a team is 442V, what is the trigger input resistance for the IMD
178.5kOhm
221kOhm
210kOhm
442kOhm
What is true about the accumulator container
The accumulator container must be designed to withstand 40g acceleration in the longitudinal direction (forward/aft), 20g in the lateral direction(left/right) and 20g in the vertical direction(up/down)
Tabs of pouch cells must not carry mechanical loads
Every wire used in an TS accumulator container, regardless of whether it is part of the LVS or TS, must be rated to the maximum TS voltage.
The accumulator container of Aristurtle weights 66.5kg
What is TRUE about the HVD
An untrained person must be able to remove the HVD within 10 s when the vehicle is in ready-to-race condition.
The HVD does not need to be inside the Rollover Protection Envelope
A dummy HVD connector must be always attached to the pushbar
The HVD must be clearly marked with “High Voltage Disconnect”
What is TRUE about the Data Logger
The data logger must be supplied directly from the TSMS
The data logger can be inside or outside the accumulator container
The data logger must be in an easily accessible location so that it is possible to insert, remove or replace it within 15 seconds in ready to race condition
The TS voltage sense connection of the data logger must be directly connected to the most positive AIR(s) on vehicle side
What is TRUE about the tractive system wiring
Every TS connector outside of a housing must include a pilot contact/interlock line which is part of the shutdown circuit.
The Inverter’s wires of Aristurtle’s car must have an interlock line which is part of the shutdown circuit
Any shielded cable must have the shield grounded
All TS wiring that runs outside of TS enclosures must be orange and be securely anchored at least at each end so that it can withstand a force of 200 N without straining the cable end crimp
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