7 3/8 x 9 1/4 T echnical / Build Your Own Electric Vehicle / Leitman / 373-2 / Chapter 7
Chapter 7: The Controller
Figure 7-5 Zilla Controller Model Z2K-HV (Cour tesy of Café Electric, LLC).
• The Z1K-LV is the lowest cost unit. While it regulates up to 1,000 amps of motor current to run on lead-acid battery packs of 72 to 156 volts, this unit is more than twice as powerful as the common type of controllers for most “normal” car conversions. Because Café Electric wants people to convert cars to have affordable options, they use “the sales of higher voltage controllers to partially subsidize production of the Z1K-LV units.” This keeps the amount of these units delayed for a reason. • The Z1K-HV can regulate up to 1,000 amps of motor current and run on leadacid battery packs of 72 to 300 volts nominal. This unit in a typical car with a shifting transmission and a powerful battery pack of at least 200 volts will result Maximum nominal input voltage range for Lead-Acid batteries: 72 to 348 volts Absolute maximum fully loaded input voltage range: 36 to 400 volt s* Maximum motor cur rent at 50°C heat sink temperature: 2000 Amps for Z2K, 1000 Amps for Z1K Maximum Batter y Current at 200V: 1900 Amps for Z2K, 950 Amps for Z1K Maximum Batter y Current at 300V: 1770 Amps for Z2K, 885 Amps for Z1K Maximum Batter y Current at 400V: 1600 Amps for Z2K, 800 Amps for Z1K Continuous motor cur rent @ 50°C coolant temp and 100% Duty Cycle: o ver 600 Amps for Z2K, 300 Amps for Z1K Peak Power: 640,000 W atts for Z2K, 320,000 W atts for Z1K PWM frequency 15.7 kHz Power devices IGBT Voltage Drop: <1.9 volts at maximum cur rent. * At this time we are suggesting not exceeding 375 volts on the EHV models; we hope to bring that back up to 400 volts with further testing.
Table 7-1 Zilla Specifications
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