Abstract: With the development of automobile electrification, more and more hybrid vehicles continue to appear. Hybrid vehicles have the characteristics of saving fuel consumption, but the working mode of the motor and the engine can be changed during the vehicle is running, for example the engine can be started or shut off, there may be significant stumbles and jerks during the engine start and stop process which will bring the driver and passengers driving comfort problems. In order to solve the problem of drivability, this paper establishes the vehicle's drivability parametric model. Through sensitivity analysis of the relevant component characteristic parameters that affect the drivability of the vehicle, and comprehensive optimization of the above component characteristic parameters, a solution is found to optimize the drivability of the vehicle, to make the drivability of the hybrid vehicle more in line with the comfort requirements of the driver and passengers.

Key words: Vehicle parameter optimization; Drivability; Sensitivity; Simulation analysis

摘要： 随着汽车电动化的发展，越来越多的混动车型不断出现。混动车具有节约油耗的特点， 但由于有发动机和电机工作模式的切换，发动机启动和停机过程会出现较大顿挫和抖动，从 而带来驾驶员和乘员的驾驶乘坐舒适性问题。为了解决该驾驶性问题，文章建立了整车的驾 驶性参数化模型，通过对影响整车驾驶性的相关零部件特性参数进行灵敏度分析，并对上述 各零部件特性参数进行综合优化，找到优化整车驾驶性的方案，使混动车驾驶性更符合驾驶 员和乘员的舒适性要求。

关键词: 整车参数优化；驾驶性；灵敏度；仿真分析