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Electrics / Electronics

EDfuse – intelligent measurement of bias currents and operating currents in the vehicle

The best performance, comfort and safety are features which are required of all vehicles nowadays. In order for these demands to be fulfilled, the complexity of the vehicle continually increases and the number of control devices and electrical consumers also increases permanently. Electrically driven automobiles also promise a way to sufficient, efficient mobility. However, electrical energy in vehicles is a scarce commodity due to the limited storage capacity.

This particularly applies to purely electrically driven vehicles as the range rapidly reduces is the use of electrical energy is not optimized. The consumption of fuel is also negatively affected in the case of vehicles with a conventional combustion engine, if the electrical energy is not distributed and used as well as possible. This is why optimization of the energy flow is extremely important.

With EDfuse, a modular measurement system developed by EDAG, energy efficiency in the vehicle can be meausured and documented without any further installation effort. EDfuse stands for comfortable and efficient validation of electrical energy distribution in the vehicle.

Due to the integrated galvanic separation between measurement technology and the vehicle, as well as all measurement elements among themselves, measurements in on-board networks with different supply voltages are possible; low-volt, high-volt or combined low-high volt systems. It is not important whether short or long-term measurements are to be carried out. The existing fuse elements can simply be replaced with intelligent measurement sensors and the fuse function is maintained.

EDfuse – The product

In contrast to standard measurement methods such as current probe measurement or digital mulitmeters, the EDfuse works self-sufficiently. After one-off installation, EDfuse can carry out the measurement independently and save the detected data. The metrics will be recorded by a sensor and transmitted through an interface to the CAN-Bus.
The data can be now logged or visualized directly.

The original fuse is replaced by an intelligent fuse in the vehicle, which measures the electricity with the fuse wire. The information can be optained from the CAN later. With CAN Tools it can be also visualised. This is how the data can be analysed at a later date.

Overview Sensors

The different sensors can be parameterizes with the EDfuse Configurator Software. Afterwards they can be distributes by Plug-and-Play in the vehicle.They will be connected via CAN Interface. For the operating of the CAN Interface at the computer,an USB driver is required.


Sensors for the measurement of the electricity

  • Intelligent fuse Mini 5 - 30A, ATO 5 - 40A, Maxi 20 – 80A
  • Current lamp 30 A and 1000 A
  • Electricity sensor High-Voltage upto 1000 V and 400 A
  • Shunt 300 A

Sensors for the measurement of the voltage

  • Voltage sensor for extra-low voltage -100 V upto +100 V
  • Voltage sensor High-Voltage -1000 V upto + 1000 V

Sensor fort he measurement of the temperature

  • Temperature sensor  -40°C upto +200°C

EDfuse offers solutions for a number of applications:

  • Measurement of currents and voltages in high-volt and high-current systems of hybrid and electric vehicles
  • Identification of quiescent and operating current problems
  • Validation and optimization of electrical energy distribution in vehicles
  • Long-term data storage of all measured currents and voltages
  • Parallel record of temperatures

EDfuse Configurator Rel. 0.98

EDfuse – The product

USB Driver CDM20830