The extended Kalman filter (EKF) algorithm and acceleration sensor measurements were used to identify vehiclemass and road gradient in the work. Four different states of fixed mass, variable mass, fixed slope and vari...The extended Kalman filter (EKF) algorithm and acceleration sensor measurements were used to identify vehiclemass and road gradient in the work. Four different states of fixed mass, variable mass, fixed slope and variableslope were set to simulate real-time working conditions, respectively. A comprehensive electric commercial vehicleshifting strategy was formulated according to the identification results. The co-simulation results showed that,compared with the recursive least square (RLS) algorithm, the proposed algorithm could identify the real-timevehicle mass and road gradient quickly and accurately. The comprehensive shifting strategy formulated had thefollowing advantages, e.g., avoiding frequent shifting of vehicles up the hill, making full use ofmotor braking downthe hill, and improving the overall performance of vehicles.展开更多
对纯电动防爆车辆AMT换挡机理进行分析,建立了换挡过程各阶段AMT变速箱输入轴、输出轴的动力学方程及换档冲击度数学表达式,提出了对应的控制方法及控制策略并进行仿真验证。整车试验表明:采用AMT变速驱动车辆防爆驱动电机额定功率下降...对纯电动防爆车辆AMT换挡机理进行分析,建立了换挡过程各阶段AMT变速箱输入轴、输出轴的动力学方程及换档冲击度数学表达式,提出了对应的控制方法及控制策略并进行仿真验证。整车试验表明:采用AMT变速驱动车辆防爆驱动电机额定功率下降了18 k W,能耗降低了5.9 k W/h,续航里程延长了7.1 km。展开更多
基金funded by the Innovation-Driven Development Special Fund Project of Guangxi,Grant No.Guike AA22068060the Science and Technology Planning Project of Liuzhou,Grant No.2021AAA0112the Liudong Science and Technology Project,Grant No.20210117.
文摘The extended Kalman filter (EKF) algorithm and acceleration sensor measurements were used to identify vehiclemass and road gradient in the work. Four different states of fixed mass, variable mass, fixed slope and variableslope were set to simulate real-time working conditions, respectively. A comprehensive electric commercial vehicleshifting strategy was formulated according to the identification results. The co-simulation results showed that,compared with the recursive least square (RLS) algorithm, the proposed algorithm could identify the real-timevehicle mass and road gradient quickly and accurately. The comprehensive shifting strategy formulated had thefollowing advantages, e.g., avoiding frequent shifting of vehicles up the hill, making full use ofmotor braking downthe hill, and improving the overall performance of vehicles.
文摘对纯电动防爆车辆AMT换挡机理进行分析,建立了换挡过程各阶段AMT变速箱输入轴、输出轴的动力学方程及换档冲击度数学表达式,提出了对应的控制方法及控制策略并进行仿真验证。整车试验表明:采用AMT变速驱动车辆防爆驱动电机额定功率下降了18 k W,能耗降低了5.9 k W/h,续航里程延长了7.1 km。
