On board charger(OBC) is a kind of charger fixed on electric vehicle, which has the ability of safely and automatically charging for electric vehicle battery. The charger is based on the data provided by Battery Management System (BMS) , can dynamically adjust the charging current or voltage parameters, the implementation of the corresponding action to complete the charging process. At present, there are many kinds of new energy vehicle charging systems, including contact charging system and inductive charging system, according to whether the charging system is in direct contact with the Public Power Grid.
The contact charging system has the characteristics of simple structure, low cost and high efficiency of power transmission. It is the main charging system at present. The inductive charging system requires a small power socket or charging cable, and the power is wirelessly transmitted to the car’s power battery by a charging panel embedded in the road, inductive charging system has many advantages, such as universality, simple operation, saving manpower cost and saving land resource, but it has complex structure, low efficiency and high cost.
With the continuous development of new energy vehicles, especially in recent years, the BEV technology has become more and more mature, and the new energy subsidy has become a long-term policy for the sustainable development of the country, the performance and efficiency of the battery pack are directly related to the battery pack’s real-time capacity, so the automatic test of the battery pack is very important. In the process of BOBC, OBC, and vehicle development and testing, it is necessary to test the function and performance of the vehicle-borne BOBC charger. Two-way vehicle charger BOBC automatic test system hardware includes electronic load simulation battery discharge, AC power supply simulation grid to the charger, with oscilloscope and power analyzer and other equipment, and professional pc software, complete the test of the car charger.
Modular design, built according to different test requirements; high power electronic load up to 600kW, fully meet the test requirements of high power DC charging pile; built in test items in line with the test standards compatible with a variety of charging protocol, suitable for different communication protocol charger, test fill interface, no programming ability, software support output customized test report!
OBC Module 6.6 kw Bidirectional, DCDC module 2.2 kw, and PDU part; working voltage range: 240 ~ 420 VDC (DCDC, PDU) , 85 ~ 265 Vac (OBC) ; bi-directional charging and discharging function; voltage and current regulation through CAN communication with BMS; water cooling design, device selection in line with the car regulation requirements; Meet the vibration, waterproof, EMC, safety requirements!
DCNE is the professional supplier for OBC, welcome customers visit our website of www.longrunobc.com for detail info.
Post time: Jun-23-2021