汽车工程 ›› 2025, Vol. 47 ›› Issue (5): 982-991.doi: 10.19562/j.chinasae.qcgc.2025.05.018

• • 上一篇    下一篇

基于CAN总线参数的双工况载重车质量估计

李勇滔1,2,田云立2,宁奕胜1,2(),郑伟光1,2,尹辉俊2,许恩永3   

  1. 1.广西科技大学机械与汽车工程学院,柳州 545616
    2.广西汽车零部件与整车技术重点实验室,柳州 545616
    3.东风柳州汽车有限公司,柳州 545616
  • 收稿日期:2024-06-02 修回日期:2024-11-14 出版日期:2025-05-25 发布日期:2025-05-20
  • 通讯作者: 宁奕胜 E-mail:179454499@qq.com
  • 基金资助:
    国家自然科学基金(52065013);广西重点研发计划项目(桂科AB21220052)

Mass Estimation of Load Trucks Based on CAN Bus Parameters with Dual Working Conditions

Yongtao Li1,2,Yunli Tian2,Yisheng Ning1,2(),Weiguang Zheng1,2,Huijun Yin2,Enyong Xu3   

  1. 1.School of Mechanical and Automotive Engineering,Guangxi University of Science and Technology,Liuzhou 545616
    2.Guangxi Key Laboratory of Automobile Components and Vehicle Technology,Liuzhou 545616
    3.Dongfeng Liuzhou Motor Company,Liuzhou 545616
  • Received:2024-06-02 Revised:2024-11-14 Online:2025-05-25 Published:2025-05-20
  • Contact: Yisheng Ning E-mail:179454499@qq.com

摘要:

整车质量对车辆动力控制系统和安全控制系统而言是一个重要参数,尤其是对于重型货车。在车辆纵向动力学模型的基础上,本文提出一种依据车辆运行工况对整车质量进行估计的方法。首先,在加速工况下,通过CAN总线获取发动机转矩和纵向加速度,利用卡尔曼滤波算法(KF)对整车质量进行估计。然后,再利用所估计的质量识别未知参数。在匀速工况下,基于所识别的未知参数和车辆动力学模型进行整车质量估计。通过TruckSim/Simulink构建估计器开展联合仿真,验证了该方法的有效性。经实车测试,结果表明在不同工况下,该方法能够较为准确地估计整车质量。

关键词: 整车质量, 参数辨识, TruckSim/Simulink, CAN总线

Abstract:

The total vehicle mass is an important parameter for both power and safety control of the vehicle, especially for heavy-duty trucks. Based on the theory of vehicle longitudinal dynamics, a method for estimating the total vehicle mass according to the vehicle operating conditions is proposed in this paper. Firstly, under acceleration conditions, engine torque and longitudinal acceleration are obtained through CAN bus, using the Kalman filter algorithm (KF) to estimate the total vehicle mass. Then the estimated mass is used to identify the unknown parameters. At constant speed, the mass is estimated based on the identified unknown parameters and a simplified vehicle longitudinal dynamics model. The effectiveness of the method is verified through joint simulation suing the estimator constructed by TruckSim/Simulink. By the vehicle road test, the results show that the method is able to estimate the total vehicle mass more accurately under different operating conditions.

Key words: total vehicle mass, parameter identification, TruckSim /Simulink, CAN bus