Electrical and propulsion systems Requirements Diagram

Element View:
Electrical and propulsion systemsElectrical and propulsion systemsVehicle electrical systemVoltage (on-board batteries, external batteries, super capacitors, etc)Lithium ion battery.All batteries and super capacitors must be short circuit protected.All vehicle electrical circuits must be protected against electrical overload.Hybrid and e-mobility vehicles which have a propulsion battery.All electrical/electronic cases must be made of transparent material or at least have a transparent top.Must have a Battery Management System (BMS) installed to control and protect the battery against risk of fire. The BMS must provide cell balancing during off-track charging and protect against overcharge,( and for e-mobility vehicles) over discharge, over-current and over temperature. For non e-mobility vehicles, the accessory battery BMS system cell balancing and overcharge protection may be contained in the off-board charger.Battery electric vehiclesThe drive train in the "Battery Only" category has restrictions to electrical storage and motors.The competitors must provide a description and a precise technical drawing of their electrical drive train with the application.BatteriesThe entire drive train including all circuit protection must be easily accessible for inspection and measurements.Batteries must be placed outside the driver's compartment behind the bulkhead and securely mounted (see Article 27).All vehicles must be equipped with one joule meter located between the battery and the motor controller(s) to measure the electric motor energy consumption.The competitors will be required to present electrical schematics at the competition technical inspection.HornEach vehicle must be equipped with an electric horn mounted towards the front of the vehicle, in such a manner that is effectively audible to other vehicles and track marshals.Volume and pitchHornEffectively audible horn:
hight tone greater or equal 420Hz
Emit a sound greater than 85dBA measured 4 meters horizontally from the vehicle when  normal running.
noise capability of more than 110dBAEmergency shutdownThe emergency shutdown mechanism (ESM) must provide a physical isolation of the propulsion battery from the vehicle electrical system.Emergency shutdown buttonsTeamControl systemPropulsion system