This paper is aimed to experimentally analyse the effectiveness of a hybrid storage system, when powering a commercial vehicle for urban use. The hybrid energy storage system is composed by two ZEBRA batteries, combined with an electric double layer capacitor (EDLC) module. The integration of those storage systems is obtained by means of a bidirectional DC/DC converter, which balances the electric power fluxes between batteries and super-capacitors, depending on the driving operative conditions. Modeling and simulations are preliminarily conducted with reference to the specific case study of an electric version of the Renault Master, supplied by the above described hybrid storage system. That theoretical activity allows the optimization of rule based energy management strategies for the hybrid energy storage system, in terms of the effectiveness in reducing the negative effects of high charging/discharging currents on battery durability. Then, the experimentation of the real power train, connected to the mentioned hybrid storage system, is carried out through a 1:1 laboratory test bench, able to perform the analysed energy management strategies on standard driving cycles, representative of the urban mission of the commercial vehicle under study. The obtained experimental results, expressed through electrical and mechanical parameters in a wide range of road operative conditions, show that the super-capacitors can improve the expected battery lifespan, with values of maximum effectiveness up to 52%, for driving patterns without negative road slopes. The procedure followed and presented in this paper definitely demonstrates the good performance of the evaluated hybrid storage system, controlled by the DC/DC power converter, to reduce the negative consequences of the power peaks associated with the urban use of commercial vehicles.

本文旨在通过实验分析混合动力存储系统在为城市商用车提供动力时的有效性。混合储能系统由两个ZEBRA电池和一个双电层电容器（EDLC）模块组合而成。这些存储系统的集成是通过双向DC / DC转换器实现的，该双向DC / DC转换器根据驱动操作条件来平衡电池和超级电容器之间的电力通量。首先参考由上述混合存储系统提供的雷诺Master电动版的特定案例研究进行建模和仿真。这种理论上的活动可以为混合储能系统优化基于规则的能量管理策略，就减少高充电/放电电流对电池耐久性的负面影响的有效性而言。然后，通过1：1实验室测试台进行连接到上述混合存储系统的实际动力总成的实验，该实验台能够在标准行驶周期上执行分析后的能源管理策略，代表了该城市的城市使命。研究中的商用车。通过在广泛的道路操作条件下通过电气和机械参数表示的实验结果表明，对于没有负坡度的驾驶模式，超级电容器可以提高预期的电池寿命，最大效率值可以达到52％。 。