Automotive PCB Applications and Types

The industrial sector has seen a tremendous boom in past decade when the demand in automobile exponentially increased due to rapidly growing automation technology. Today the automobile giants like Toyota, Honda, BMW, Ford and Tesla are producing such a high class automobiles and targeting specific consumer class that can buy such a marvelous piece of art of automation engineering. Besides mechanical engineering miracles we all know that brought the revolution in cars and automobile vehicles, the electronics engineering industry has now got involved extensively in automobile industry. Today's automobile vehicle is a combination of true art of mechanical and electronics engineering. All of the aesthetics that we see in high class sports car like Lamborghini or Ferrari, or we see power control system in heavy loaded trucks like Caterpillar or Komatsu lifters, cranes etc we see that the control system working behind is based on some sort of Electronic Control System (ECS). And this ECS is founded on Special kind of Automotive PCB.

Automotive PCB Applications and Types


Applications of Automobile PCBs:


Like Caterpillar 797F mining truck has the electronic clutch pressure control, service break sensor, Engine sensor, ARC switch, service break, secondary break control, axle speed sensor circuit, position and steering sensor circuits. There are lots of other examples of general use consumer cars with impressive dashboard,  with LED or LCD display, GPS and radar electronics embedded on dashboard, FM radio, automatic doors and locking systems, electronic relays to control fuel valves/solenoids, timer circuits for engine, Engine Control Unit (ECU) or Engine Control System (ECS) PCB modules, automatic mirror controller, Airbag controller, and front, rear and side LED light control and drive circuits for headlights, back lights and indicator lights respectively, car speed and acceleration sensor and display circuits, Car Battery Management system circuits, wireless key remote door locking system for car safety, air conditioning control etc.


The auto driver system in modern automobile cars is totally PCB based and highly sophisticated electronic circuits are functioning behind the scene. These PCBs are made pre-programmed for sensing the surrounding environment of car to detect obstacle around it in neat vicinity. This is commonly done by IR and Doppler radar system. The auto robot car driving system will take control of car brake, clutch and race and makes decision based on the inputs from surrounding and programming fed in the complicated automotive PCBs.


Although these automobile PCBs are powered by car batteries which is in most cases maintenance free batteries and all the car electronics is operated by this 12VDC battery system. The cabling and wire harness is laid inside the car along with fuses to prevent the electronics from over current or overvoltage surges.


Electric Vehicle:Automotive PCB Applications and Types


Nowadays, we see in newspaper, electronic media and people talking about future cars that will run totally on batteries and no fuel or diesel will be required for car now. Yes this is true, scientist and engineers have come-up with a new invention in the battery system that these batteries will charge in the matter of few hours and will give backup to your care for many days. This system is just like our smart-phones that once charged in few hours will give back-up 2-3 days. But there are differences in this novel technology because some electric vehicle will give few days of back and mileage while other can gives battery charging power for weeks. Obviously, the technology of E-Vehicles or Electric Vehicle is not possible without Automotive PCBs. Although our discussion in previous section was just to power up the accessory car electronics and engine control while the fuel was still the diesel and oil, while here in this case the car is totally "electrified" completely eliminating the need of fuel or diesel.


Types of Automotive PCBs:


From our discussion above it is clear that the automotive PCBs should be something that will give the highest performance in terms of power dissipation, efficient heat transfer, long life cycle and robustness. Commonly if we open up the deck or dashboard of our cars we see a complex electronics and wiring inside with relays, fuses and sockets mounted and connecting various modules with each other. These components are all mounted on Rigid PCBs that are High Density Interconnect (HDI) PCBs, Heavy copper PCBs to allow high amount of current flow from car battery to accessory electronic, ceramic substrate PCBs to bear against harsh, stringent environment of car surrounding like car moving in deserts, forest, mountainous regions or running in hot sunny weather.Automotive PCB Applications and Types


The aluminum based Metal Core PCBs (MCPCBs) are commonly seen in automotive electronics that consist of bright LED lights. These bright LED lights draw high current from battery and in turn gives high luminosity white light. Moreover the small motors hidden inside car body to control the cars fins, windows, side mirrors or any part that is moving, draws good enough current from battery. Hence the need of heavy copper PCB is required to provide least resistance path to the flow of current so as to protect/avoid PCB to melt down due to high temperature / heat generated by high currents.


There are flexible PCBs also found in car electronics front dashboard, connecting large LED, LCD display to the processor board, or connecting various electronic modules each other by flexible PCBs. Flexible PCBs are light weight and can be adjusted/flexed inside the small space available in car deck/dashboard. The combination of rigid and flexible PCBs called Rigid-Flex PCBs are also found in Automotive PCBs.


Rayming PCB Services for Automotive PCBs:


At Rayming PCB Our expertise in manufacturing automotive PCBs is vast. We assure high quality and robust PCB manufacturing services. Our PCBs are ISO 9001-2008 and UL certified, so you know they are reliable, durable that will last long. We are the one-stop shop for all your PCB manufacturing and assembly needs. Our proven reputation among our valued clients shows the quality product we deliver. Please send us the design specifications and details about your Automotive PCB at this email


Future of Automotive and PCB Industry Together:


These two gigantic industries can change the shape of the automation industry. As we witness today that cars have been invented totally depending upon electricity and batteries and completely knocking out the need of fuel pumps. Now in future electric charging stations will charge your car like a smart-phone and your will then drive your car more "Energy efficiently" and more environment friendly. Having said that, the electronics PCB manufacturing and assembly industry is the Part and Parcel of automotive industry. It is just the matter of time that world would see these automotive PCBs being used as an integral part of every car's engine electronics, as car's accessories electronics and completely replacing mechanical fuel engines with electronic car engines and interface electric motors to drive your car effectively.