Hybrid Electric Vehicle Training Educator

High Voltage Cables


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High-voltage cables connect the high-voltage battery to the inverter/converter assembly and air conditioning (A/C) compressor or 'cooler compressor'. There are two cables, one positive and one negative. Power leaves the battery through the orange cables that run underneath the vehicle and enters the engine compartment. Within the engine compartment, the cables are routed to the inverter/converter and A/C compressor.

High voltage is the electrical force that carries the direct current (DC) to the inverter/converter and the A/C compressor. The inverter changes the DC to alternating current (AC) to power the motor/generators (MGs) within the hybrid transaxle to propel the vehicle. During regenerative braking, the MG2 sends the generated AC voltage to the inverter which converts the energy to DC for high-voltage battery recharging. The converter changes high voltage potential to low voltage potential (standard 12 volts DC) to power vehicle auxiliary devices. The high voltage cables that are connected to the A/C compressor carry high-voltage DC energy. The A/C compressor has its own built-in inverter to power its AC motor.

© 2012 National Alternative Fuels Training Consortium.

High Voltage Cables

High Voltage Cables