NGI automotive intelligent electrical box test system solution

The automotive electrical box is an electrical hub for providing vehicle power distribution and circuit protection. It can simplify the wiring harness assembly of the entire vehicle. Its components mainly include MCU, relay fuse circuit, control logic circuit, communication circuit, etc. In order to ensure the safety and stability of the vehicle operation, we need to perform various functional tests on the smart electrical box, including logic control and drive, communication transceiver, etc., to simulate various extreme working conditions such as overload, overtime, frequent switching operation of the automotive smart electrical box in various extreme environments to test its reliability and stability.

NGI provides a complete set of professional system testing solutions for automotive smart electrical box testing. Users can customize the test timing of each circuit distribution, control the relevant input and output signals for simulation testing, and can monitor the voltage, current, temperature and other key indicators of each electrical circuit in real time. It can also perform CAN and LIN communication tests, etc., and can provide a reliable and stable environment for the testing of automotive electrical boxes as a whole.
NGI's smart electrical box testing system is mainly composed of high-performance programmable DC power supply, multi-channel programmable DC load, NXI multi-function board and other hardware equipment with dedicated testing software.

Main test items

Durability test, pulse (surge) current impact test, relay control signal test, analog/digital signal input test, high-side/low-side drive test, CAN/LIN communication test, dimming motor output test, etc.
Use our high-power DC power supply and multi-channel electronic load to power the distribution circuit to simulate the real operating environment, and perform durability test and pulse (surge) current impact test on the internal circuit of the electrical box; use the relay card to control the opening and closing of the relay channel, realize various timing switch tests of the internal relay of the electrical box, and high-side and low-side drive tests, and detect the corresponding voltage values; use the data acquisition card to realize voltage acquisition of key channels and detect whether their output values are normal; use the communication card to realize DUT communication transmission and reception; use the PLIN-USB adapter to realize LIN communication test of the electrical box to check whether its data interaction is normal.

Main features of NGI test system

The test system is comprehensive in function, flexible in test mode, and highly stable, which can meet the test requirements of various automotive electrical boxes.
■The hardware is modularly designed, which is convenient for expansion, movement and disassembly;
■The hardware is highly integrated, which can effectively save test space;
■High reliability design, the simulated load is equipped with a full range of MOS protection circuits;
■The software has a high degree of automation and the interface is convenient and friendly;
■The test conditions can be changed flexibly, and users can edit the key parameters such as the on-off time and current value of each channel at will;
■The test results are clear at a glance, supporting multiple presentation methods such as graphics and data.