Hybrid and e-mobility vehicles which have a propulsion battery. Requirements Diagram

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Hybrid and e-mobility vehicles which have a propulsion battery.Hybrid and e-mobility vehicles which have a propulsion battery.Propulsion battery or super capacitors must be electrically isolated on both positive and negative circuits.Must be isolated from the vehicle frame.Propulsion battery:
Technical k-brief about batteries
Concept chosen for 2012.Propulsion battery or super capacitor must be electrically isolated on both positive and negative circuit:
isolated from the vehicle frame
isolated from the accesory battery circuit(for e-mobility vehicles only) Only one propulsion battery  is allowed.Propulsion battery:
Technical k-brief about batteries
Concept chosen for 2012.1 electric storage device and up to 2 electric motors with associated control unitsonly one proplusion batteryOnly one accessory battery per vehicle is allowed.The accessory battery (refer article 57 h) must maintain a negative ground.The accessory battery must operate all safety devices (e.g. horn, hydrogen sensor) for the duration of the competition.The accessory battery may also operate for: internal combustion engine, the starter motor, the ignition, the instrumentation and electronic management systems.All other additional sources of electricity are forbidden.The accessory battery is not allowed to power compressors, blowers, engine cooling systems, motors, etc. It may however be used to power a ventilation/cooling fan for the driver.The organizers reserve the right to request Teams to install one joule meter, intended to measure the quantity of energy provided by the accessory battery. If this amount of energy exceeds the power typically required to operate the starter motor, horn and safety devices the competitor will be disqualified.Car system batteryonly one accesory battery:
It must operate all safety devices.
It may also operate the starter motor the instrumentation and electronic management systemsBoth propulsion and accessory batteries must be installed outside of the driver's compartment behind a bulk head (see article 27).The following devices may be powered by batteries other than the propulsion or accessory battery provided they use built-in batteries: radio communication system, GPS system, data loggers excluding engine management units, driver ventilators.Some devices may use built-in batteries:
Devices such as  GPS, data loggers excluding engine management units, driver ventilators