Traditionally, fuses and relays served all of those purposes, but they have many disadvantages like complicated wiring looms, sensitivity to vibration/temperature, and difficult diagnostics. All of these problems can be solved by using intelligent power management units (PMUs). Our newly developed PMU unit is at the forefront of technology. It provides 16 high current outputs (and use of multiple units if more outputs are required).
One of the main advantages of the PMU is continuous current sensing and self-resetting functionality if current exceeds the defined level. All output state, voltage and current information can be logged and transmitted via CAN bus to dash displays to inform drivers of potential problems. An additional advantage of the PMU system is the ability to define logic for controlling outputs. This is done with data from analogue input channels or CAN bus data, and math operations can be defined for each channel.
The PMU16 Autosport Version is designed for demanding customers and installations where reliability and robustness is priority. Autosport connectors represent the highest quality connector available and are the standard for professional motorsports and aerospace industries. The battery connection utilizes a RadlokTM connector rated to 200 amps that can be disconnected without the need for any tools. The output connector is a custom 18 pin, 12 gauge connector designed and manufactured specifically for Ecumaster. The unit features an IP65 environmental protection rating, permitting its use in the harshest of conditions, including dusty and wet environments.
Compared to the standard PMU16, 6 low side outputs have been added and are rated at 1 amp per channel. 14 of the main output channels are rated at 25 amps, with two output channels rated at 40 amps. As always with Ecumaster products mating connectors and terminals are included at no extra cost, which represents substantial savings and saves the hassle of ordering separate components.
Temperature range AECQ100 GRADE1 (-40 to 125˚C) CPU 32 bits automotive, 90MIPS
Reverse polarity protection Yes, internal
Operating voltage 6-22V, immunity to transients according to ISO 7637
Enclosure IP65, bespoke CNC machined aluminum
Size (mm) and weight(g) 177x84x46.1, 360g
Connectors 1 x AS shell size 24, 19 x 12AWG |1 x AS shell size 24, 37 x 22AWG | 1 x RADLOK 8mm battery terminal
PC communication CAN (ECUMASTER USBtoCAN, PEAK CAN, KVASER)
High current outputs 14 x 25A(cont.),2 x 40A(cont.) with overcurrent and overheating protection. Outputs may be paired to increase continuous current capability. Current and voltage is measured for each output
Low current outputs 6 x 1A (13A peak) with overload thermal shutdown
Total current output 200A continuous
Output current control step 100mA
Wipers output with wiper braking feature
Monitored 5V, 500mA output for powering external sensors.
Analog inputs 16 inputs, 10 Bit resolution, 0-5V (protected), with software selectable 10K Ohm pullup and pulldowns
CAN Keypads 2 x Ecumaster keypads (4, 6, 8, 12 keys)
Logging memory 256Mb (3 hours logging at maximum bandwith)
Logging speed Variable, defined per channel, up to 500Hz
Logging to PC, yes.
Note this product comes from Europe and could take up to 10 working days.