For vehicles that are operated at extreme temperatures, it is necessary for a transmission to function perfectly over a wide temperature range
The automotive sector places special demands on the printed circuit boards used in
vehicles. In the commercial vehicle sector, the conditions are even tougher. The electronic
components have to be robust to keep the wheels rolling, even on rough terrain. Another aspect
is the environment. Whether it is sandstorms, freezing rain or high humidity, the vehicles must
be able to withstand the sometimes extreme environmental conditions for many years.
In vehicles that operate in extreme temperatures, a transmission unit has to function
smoothly over a wide range of temperatures. In the Siberian winter, for example, outside
temperatures of minus 40 degrees Celsius are not uncommon. The operating temperature of
the transmission oil, on the other hand, can rise to 90 to 100 degrees Celsius. The
integrated system must be able to withstand these fluctuations without any problems. Floating
pin technology has proven itself in unforgiving outdoor environments. This robust technology
operates in all weathers and is reliably in heat, rain, sleet, and snow. It is also impervious
to gear oil, gases, and other chemicals. High strength and coplanarity ensure a long service life,
which is a basic requirement for use in vehicles.
Ready for SMT
The products are based on surface-mount technology (SMT), which is now a firm
favourite in automotive electronics. SMT scores points not only for its flexibility,
but also for its high cost-effectiveness. However, classic SMT components are also
reaching their limits in the automotive industry.
Up to now, this has been the case
for connectors above a certain size and with a pitch of more than 2.54 millimetres.
In these cases, through-hole mounting was still required in order to attach the components
to the PCB. The reason for this is that the conductor connection and the power supply
need sufficient dimensions to meet the physical requirements for higher currents and voltages.
