基于GT-SUITE的乘用车驾驶性仿真与应用  

Simulation and Application of Passenger Vehicle Drivability Based on GT-SUITE Software

作　　者：曾浩 郑广勇 张彩霞 孔薇 Zeng Hao;Zheng Guangyong;Zhang Caixia;Kong Wei(Power Research Institute, Chongqing Changan Automobile Co., Ltd., Chongqing 401133)

机构地区：[1]重庆长安汽车股份有限公司动力研究院,重庆401133

出　　处：《汽车工程》2020年第9期1159-1165,共7页Automotive Engineering

基　　金：新能源汽车重点专项国六排放标准技术体系研究项目(2007CB210003)资助。

摘　　要：为了在整车性能开发早期对驾驶性进行评价,本文中使用GT-SUITE软件,考虑发动机瞬态响应和转矩控制策略,建立乘用车驾驶性仿真模型。利用仿真模型对部分典型的驾驶性工况进行仿真计算,并通过试验数据校正模型,确保仿真误差在10%以内。以某6速自动挡汽油车为例,针对3种驾驶模式的不同需求,分别对油门特性和换挡规律进行虚拟标定。最后对虚拟标定结果进行试验验证,仿真与试验误差在8%以内,充分验证了驾驶性虚拟标定的有效性和实用性。In order to evaluate the drivability in the early stage of vehicle performance development,GT-SUITE software is used in this paper to establish the passenger vehicle drivability simulation model with consideration of the engine transient response and torque control strategy.The simulation model is used to simulate some typical driving conditions,and the model is corrected by test data to ensure that the simulation error is within 10%.Taking a 6-gear automatic transmission gasoline vehicle as an example,according to the different requirements of three driving modes,the throttle characteristics and the shifting schedule are calibrated virtually respectively.Finally,the virtual calibration results are verified by experiments,and the error between the simulation and testis within 8%,which fully verifies the effectiveness and practicability of the virtual calibration of drivability.

关 键 词：驾驶性 瞬态响应 转矩控制策略 虚拟标定 GT-SUITE 

分 类 号：U46[机械工程—车辆工程]