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EV.3 ELECTRICAL LIMITATIONS
EV.3.1 Operation
EV.3.1.1 Supplying power to the motor to drive the vehicle in reverse is prohibited
EV.3.1.2 Drive by wire control of wheel torque is permitted
EV.3.1.3 Any algorithm or electronic control unit that can adjust the requested wheel torque may only decrease the total driver requested torque and must not increase it
EV.3.2 Energy Meter
EV.3.2.1 All Electric Vehicles must run with the Energy Meter provided by the organizer
Refer to the FSAEOnline Website AD.2.2 for detail information on the Energy Meter
EV.3.2.2 The Energy Meter must be installed in an easily accessible location
EV.3.2.3 All Tractive System power must flow through the Energy Meter
EV.3.2.4 Power and Voltage limits will be checked by the Energy Meter data
Energy is calculated as the time integrated value of the measured voltage multiplied by the measured current logged by the Energy Meter.
EV.3.3 Power and Voltage
EV.3.3.1 The maximum power measured by the Energy Meter must not exceed 80 kW
EV.3.3.2 The maximum permitted voltage that may occur between any two points must not exceed 600 V DC
EV.3.3.3 The powertrain must not regenerate energy when vehicle speed is between 0 and 5 km/hr
EV.3.4 Violations
EV.3.4.1 A Violation occurs when one or two of these exist:
a. Use of more than the specified maximum power EV.3.3.1
b. Exceed the maximum voltage EV.3.3.2
for one or both conditions:
Continuously for 100 ms or more
After a moving average over 500 ms is applied
EV.3.4.2 Missing Energy Meter data due to the team’s fault, tampering, or attempting to tamper with the Energy Meter will be treated as a Violation.
EV.3.4.3 Tampering, or attempting to tamper with the Energy Meter or its data may result in Disqualification (DQ)
EV.3.5 Penalties
EV.3.5.1 Violations during the Acceleration, Skidpad, Autocross Events:
a. Each run with one or more Violations will Disqualify (DQ) the best run of the team
b. Multiple runs with Violations will DQ multiple runs, ex two runs with Violations DQ the two best runs
EV.3.5.2 Violations during the Endurance event:
Each Violation: 60 second penalty D.14.2.1
EV.3.5.3 Repeated Violations may void Inspection Approval or receive additional penalties up to and including Disqualification, subject to official discretion.
EV.3.5.4 The respective data of each run in which a team has a Violation and the resulting decision may be made public.
This set of rules governs the operational parameters and constraints for vehicles at competition. Firstly, driving the vehicle in reverse by supplying power to the motor is strictly prohibited, but drive by wire control of wheel torque is allowed, provided any algorithm or electronic control unit can only decrease the requested torque from the driver, not increase it. Each electric vehicle must use the Energy Meter provided by the organizer, installed in an accessible location, and all Tractive System power must pass through it. The Energy Meter measures power and voltage limits, calculated as the integrated value of voltage multiplied by current over time. Maximum power through the Energy Meter must not exceed 80 kW, and voltage between any two points must not exceed 600 V DC. Regeneration of energy by the powertrain is prohibited at speeds between 0 and 5 km/hr. Violations, such as exceeding power or voltage limits, tampering with the Energy Meter, or missing data, incur penalties ranging from disqualification of runs to time penalties during events, depending on the severity and frequency of the infractions.
For more specific information about each rule, click the buttons below to navigate to the Sub-Tabs within this section.
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