The disclosure provides systems and methods for vehicle speedometer calibration. Methods and systems are provided for updating a relevant vehicle parameter in a vehicle so as to improve accuracy of a vehicle velocity determination. In one example, a method comprises integrating signals of a longitudinal acceleration sensor to obtain a first vehicle velocity and obtaining a second vehicle velocity from a wheel speed sensor between a first and a second reference point; and updating the relevant vehicle parameter as a function of a difference between a slope associated with the first vehicle velocity and another slope associated with the second vehicle velocity. In this way, accuracy of vehicle speed determination via one or more wheel speed sensors may be improved.
本公开提供“用于车辆速度计校准的系统和方法”。提供了用于更新车辆中的相关车辆参数以便提高车辆速度确定的准确性的方法和系统。在一个示例中,一种方法包括:在第一参考点与第二参考点之间,对纵向加速度传感器的信号进行积分以获得第一车辆速度并从车轮转速传感器获得第二车辆速度;以及根据和第一车辆速度相关联的斜率与和第二车辆速度相关联的另一斜率之间的差值来更新相关车辆参数。通过这种方式,可以提高经由一个或多个车轮转速传感器进行的车辆速度确定的准确性。
Systems and methods for vehicle speedometer calibration
用于车辆速度计校准的系统和方法
2021-11-02
Patent
Elektronische Ressource
Chinesisch
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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