Hyundai Kona Quiz
Engine Electrical System

DC/DC Converter Description and Operation

In this manual: Engine Electrical System
General Information — 17Engine Mechanical System — 85Engine Electrical System — 50Emission Control System — 26Engine Control System/Fuel System — 152DCT (Dual Clutch Transmission) System — 50Four-Wheel Drive (4WD) System — 21Propeller Shaft and Axle (2WD-FF) — 28Suspension System (without ECS) — 32Steering — 21Restraints — 38Brake System — 64Body (Interior and Exterior) — 205Body Electrical System — 1Heating, Ventilation, and Air Conditioning — 66
~1min read

Description

Due to the significantly more frequent engine starts, the resulting electrical load often causes voltage dips in the vehicle power network. To stabilize the power supply for some voltage-sensitive electrical components, a DC/DC converter is used in combination with the ISG function. The DC/DC converter supplies a constant voltage to the relay during the starting operation. The DC/DC converter is installed at the rear of the glove box. Using the input voltage sensing wires and the starting relay, the electronic control unit determines whether power is supplied to the output via the bypass or the DC/DC converter. In bypass mode, the vehicle system voltage is not supplied through the DC/DC converter but is transmitted directly to the outputs. During the boost phase, the vehicle voltage is adapted.

Operating Principle

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