基于电增压协同的液力变矩器流量输出研究

Research on Flow Output of Hydraulic Torque Converter Based on Electric Supercharging Collaborative Technology

液力变矩器受到内部流场影响很难选择正确参数,导致输出结果误差较大。针对该问题,提出采用电增压协同技术来分配或规划电动涡轮机的功率,以协调发动机独立工作时的抛物线负载和恒力矩负载,从而得到液力变矩器输出流量精确结果,即通过分配或规划电动涡轮机功率,使车辆发动机的动力性能最优。与普通增压技术的对比实验结果表明:采用电增压协同技术,变矩器输出流量与理想情况下数值最大误差仅为0.01 m^(3)/s,输出结果准确,能够为汽车稳定、高效行驶提供技术支持。

Due to the influence of internal flow field,it is difficult to select correct parameters of hydraulic torque converter,resulting in large output error.Aiming at this problem,an electric supercharging collaborative technology was used to distribute or plan the power of the electric turbine to coordinate the parabolic load and constant torque load when the engine worked independently,so as to obtain accurate output flow of the hydraulic torque converter.That was,the power performance of the vehicle engine was optimized by distributing or planning the power of the electric turbine.The comparison test with the ordinary supercharging technology shows that the maximum error between the torque converter output flow and the ideal value is only 0.01 m^(3)/s,the output result is accurate,and can provide technical support for the stable and efficient driving of the vehicle.