When designing a Car Computer, there are a lot of challenges that system integrators might experience due to the harsh in-vehicle environment and the real on-field applications, especially for the power management. Acrosser designed the comprehensive intelligent power management subsystem solution for the In Vehicle PC to conquer all the challenges and provides the advanced features to benefit the in-vehicle application.

It’s very important to not have in-vehicle PC drain the main vehicle battery. First, The Acrosser power management subsystem will automatically determine whether it’s a 12V or 24V battery, and automatically set different threshold correspondingly. Then it will constantly monitor the input voltage from the main battery.

When the system power on/off mode is controlled by the car ignition, it’s impossible to turn off the ignition and turn it back on just to restart the in-vehicle PC. Hence, Acrosser power management subsystem will automatically detect and monitor the system status.

Without worrying about the hardware configuration or software programming, Acrosser implements a user friendly interface for user to easily define and customize the power delay time and the system power on/off control mode. Application program can also change the parameters through APIs provided in software development kit.

Some applications might not attach a display to the in-vehicle PC, so it becomes difficult to know the system status of the PC and to diagnose if any problem happened. Hence Acrosser builds in a system status LED to indicate the current system status, such as in operation, in power delay, in standby or in system off status.

To consider the reality that user may need to synchronize or upload data from in-vehicle PC to the control center after vehicle ignition is off. The power delay control allows user to operate the in-vehicle PC after the ignition is off for a period of time and then properly shut down the PC automatically.