车辆质量的动态估计方法、车辆控制器及车辆

By acquiring the vehicle's current operating parameters and preset operating condition parameters, and combining them with dynamic and energy balance models, the mass of commercial vehicles is dynamically estimated. This solves the problem that existing technologies cannot reflect changes in vehicle mass in real time, and improves the real-time performance and accuracy of the vehicle control system.

CN121553156BActive Publication Date: 2026-07-17ZHIZI AUTOMOTIVE TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHIZI AUTOMOTIVE TECHNOLOGY CO LTD
Filing Date
2025-12-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies cannot reflect changes in vehicle weight in real time, especially the weight difference between unloaded and fully loaded commercial vehicles, which affects vehicle power, economy, and braking safety.

Method used

By acquiring the vehicle's current operating parameters, combined with the calibrated rolling resistance parameters and calibrated drag coefficient under preset operating conditions, and using a dynamic and energy balance mass estimation model, the estimated mass and confidence level of the vehicle on different paths are calculated, and finally the target estimated mass is obtained.

Benefits of technology

It enables dynamic estimation of vehicle mass, accurately reflects the current mass of the vehicle under various operating conditions, and improves the real-time performance and accuracy of the vehicle control system.

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Abstract

本申请提供一种车辆质量的动态估计方法、车辆控制器及车辆,涉及车辆估重技术领域。该方法包括:根据当前运行参数,以及多个预设工况对应的标定滚阻参数和标定风阻系数,确定车辆在当前工况下的当前滚阻系数以及当前风阻系数;根据当前运行参数、当前滚阻系数和当前风阻系数,采用预设动力学质量估计模型,计算车辆在动力学路径的第一估计质量以及第一置信度;根据当前运行参数、当前滚阻系数和当前风阻系数,采用预设能量平衡质量估计模型,计算车辆在能量平衡路径的第二估计质量以及第二置信度;根据第一估计质量、第一置信度、第二估计质量和第二置信度,得到车辆在当前时刻的目标估计质量。可以计算出车辆行驶过程中当前时刻的估计质量。
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