Tema: Automobili
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Staro 10.03.2019., 19:30   #42495
The Exiled
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Datum registracije: Feb 2014
Lokacija: Varaždin
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Njegova bi bila BMS + PDU kombinacija koja ide u paketu s baterijama, a materijali koje je Roy linkal su u svakom slučaju zanimljivi.
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The battery pack is one of the most advanced lithium nickel manganese cobalt oxide (LiNiMnCoO2) high voltage battery packs in the world. Using high performance lithium-ion cells, the battery achieves unmatched power and energy density and enables the long range capability of the vehicle. The battery Power Distribution Unit (PDU) has a replaceable fuse and a set of contactors that are easily accessible from the car trunk. The battery control system consists of the Master Battery Monitoring System (BMS) which controls the contactors; measures pack current and voltages, electrical isolation of the battery from chassis ground and monitors cell brick voltages, module temperatures, and faults from the slave BMS installed on each of the modules. There is a safety disconnect systems in case of a crash. The battery is designed to deliver 1000 kW or 1MW of power during acceleration and to absorb 400 kW during braking. The Lithium-ion high voltage battery is used to power the electric powertrain systems and the 12 volt vehicle electrical system.
  • Type of Cells: Sony US18650VTC5 Lithium Ion Rechargeable Battery
  • Number of cells: 8232
  • Number of Battery Modules: 168
  • Battery Capacity: 127.4 Ah (Amp-hours)
  • Maximum Battery Voltage: 700
  • Voltage: 650V nominal
  • Capacity: 82 kWh
  • Battery Weight (lbs): 1,080

The battery pack consists of two separate pieces, back pack and tunnel pack (1 - 2). Both are cooled with galden through the pipe system shown below. Battery Monitoring System (BMS) monitors temperatures inside the battery pack, there are 16 temperature sensors. Depending on the values registered from the temperature sensors, the temperature is controlled with the use of the galden pump and cooling compressor. When the battery temperature is below 81⁰F (27⁰C) battery cooling is not required. This temperature is based on the cell with the highest temperature. When the temperature reaches 81⁰F (27⁰C) the pump will start the circulation cooling system. When the temperature reaches 86⁰F (30⁰C), temperature monitoring of the galden (on the exit of the cooler) will start and the temperature will be maintained according to the diagram shown below. Temperature regulation is managed through rpm of the compressor. If the temperature is higher than shown below, the freon circulation will be increased to cool the galden. Once the vehicle is powered off, it takes approximately 10 minutes to cool down the battery pack.

The battery end of life is described as approximately 70% remaining capacity (30% capacity loss) after approximately 10 years of use. The battery pack end-of-life shall be determined by Rimac Automobili Service Center with proper inspection and test methods. Rimac Automobili highly recommends that all battery packs be taken to Rimac service facilities so that they can be recycled in a safe and efficient manner.
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