Combined Inverter and DC/DC Converter

Delphi Combined Inverter and DC/DC Converter (CIDD) is our OE solution for hybrids (HEV), plug-in hybrid electric (PHEV), and battery electric vehicles (BEV) that delivers maximum power density in a lighter, smaller, cost-effective package.

As the market for electric cars rapidly increases, independent aftermarket garages will need the right replacement part for the repair. That’s why Delphi is offering exact OE performance with our power electronic aftermarket parts.

Product Information

Product Resources

Enquire

What is the difference between an inverter and DC/DC converter in an electric vehicle?

Much like how internal combustion engines and alternators work together on conventional vehicles, hybrid cars and electric motors use inverters and converters to manage power to and from the battery pack to the motors and other on-board systems.

Inverters transform direct current (DC) from the battery into alternating current (AC) to power the vehicle. Inverters also control the motor and convert it to a generator, transferring braking energy back into the battery.

Converters control the DC voltage from the battery, either stepping it up or down based on the system and the power needed. DC/DC converters usually step down the high voltage from the battery pack to the 12-volts used by radios, headlights, and more.

An OE solution for aftermarket power electronics

Inverters and converters work together to manage the vehicle's electric drive and accessory systems. However, many of today’s inverters and converters can be complex, expensive, and prone to failure from excessive heat. They are also heavy and take up a lot of room on the vehicle, compromising both trunk and passenger compartment space. Delphi OE solution combines the inverter and DC/DC converter into one unit.

Delphi CIDD is cost-effective and saves vital weight and space in hybrids (HEV), plug-in hybrid electric (PHEV), and electric vehicles (EV). And by leveraging patented OE technology - Viper-enabled inverter’s double-sided cooling - it tackles the issue of overheating, allowing higher power outputs from a smaller package and increased range.

Combined Inverter and DC/DC Converter (CIDD)

Enhances durability and reliability through features designed to withstand under the hood and environmental factors such as debris and temperature extremes.
Improves voltage distribution functionality, enabling both low-side and high-side power for everything from headlights to power steering and air conditioning systems.
Provides maximum packaging flexibility and space savings by moving the DC/DC unit from its standard location in the rear to the front of the vehicle.
Enables better power range and minimizing power losses through the elimination of cabling, cooling hoses, connections, and housings, all while simplifying maintenance and repair.

To learn more about OE quality aftermarket EV parts you can trust, contact your Delphi representative today.

The Delphi Difference

100 years of OE experience, supplier to the world’s top automakers
OE heritage and knowledge built into every aftermarket part
Comprehensive portfolio for a wide range of vehicles and model years
Streamlined SKUs for easy inventory management
Support through tools, tips and training

Related product resources and downloads

1 min read

How to adapt a low-pressure EGR valve

Share Resource:

Emissions Vehicle Electronics & Engine Management How to Distributors Shop Owners Technicians 1 min read

Resource Highlights

Here we’re looking at how to adapt a low-pressure EGR valve after it’s been placed in a diesel vehicle.

The process is straightforward enough, but you’ll need your Delphi BlueTech diagnostic tool handy.

We walk you through the correct procedure step by step, from checking for fault codes to a final road test.

In this video we’ll show you how to:

Check for fault codes in the engine ECU

Use the software
Check and clear any errors
Complete a dynamic road test, and recheck the ECU

What is an EGR valve, and what does it do?

The exhaust gas recirculation valve, or EGR valve for short, recirculates finely metered quantities of exhaust gas to the engine intake system. This delivers increased engine efficiency, reduced fuel consumption and lower NOx emissions.

What can cause an EGR valve to fail?

EGR valves operate in a hostile environment. Over time, they’ll experience wear and tear. The single biggest cause of failure, though, is the buildup of carbon particles from the exhaust gases along the EGR and intake system passages. Over time this will clog tubes, exhaust gas channels and eventually the valve’s plunger mechanism, causing it to either stick open or close. Failures can also be caused by a rupture or leak in the valve diaphragm.

How can you recognize a failing EGR valve?

Look out for these symptoms:

Check engine light: as with most engine management components, a problem with the EGR valve may trigger the check engine light.
Engine performance: if the valve is stuck open, the vehicle’s air-fuel ratio will be disrupted causing engine performance issues such as reduced power, poor acceleration and rough idle. It may also produce turbo boost pressure leaks, causing the turbo to work harder.
Increased NOx emissions: when the EGR valve remains shut, the high temperatures in the combustion chamber that result will leave a lot of unburned fuel in the exhaust, leading to increased NOx emissions and reduced fuel efficiency.
Engine knock: the higher temperatures and NOx may also result in increased detonation or knock. You’ll be able to hear this as a knocking noise in the engine.