电动汽车传导式大功率充电向前兼容技术研究

Research of backward compatibility of conductive high power charging(HPC) technology for electric vehicle

为实现传导式大功率充电接口的向前兼容,介绍了一种能够将GB2015充电接口转换为大功率充电接口的转换器。对传导式大功率充电接口端面进行了定义,完成了带转换器的控制导引电路设计,并对使用转换器的连接器组件热性能及结构强度展开试验与仿真研究。结果表明,使用转换器的连接器组件结构强度及正常温升试验中连接器组件的端子温升均能满足标准要求,过热试验中,充电枪内温度传感器能延迟反映插座端的过热故障。该结果验证了转换器的可行性,解决了新旧接口的兼容问题,为大功率充电技术的商业化应用奠定了基础。

A new adaptor used to transfer GB2015 coupler to HPC coupler was introduced in order to solve the backward compatibility of conductive HPC.The structure of HPC coupler and the new control pilot circuit using adaptor were both described in this paper.Meanwhile,tests of thermal and mechanical performance of cable assembly using adaptor were conducted.The results showed that the mechanical strength and the temperature rise of terminals of cable assembly using adaptor can meet the requirements defined in relevant standards.And the temperature sensors installed in GB coupler will reflect the overtemperature signalling of vehicle inlet with a little delay.The paper verified the feasibility of the adaptor and solved the compatibility of old and new couplers and will promote the commercial application of HPC technology.