The invention provides an abrupt slope slow descent method based on dynamic ramp estimation, and belongs to the technical field of electric automobile control. According to the method, the real-time acceleration is calculated through automobile speed filtering, noise caused by automobile speed difference is effectively restrained, the estimated gradient is filtered, and the speed of the electric automobile is increased. The stable value of the ramp after filtering for a period of time is used as the input of abrupt slope slow descent, and a two-dimensional table of the abrupt slope slow descent speed and the gradient is established, so that the purpose of dynamically adjusting the downhill speed according to different gradients is achieved.
本发明提供了一种基于动态坡道估算的陡坡缓降方法,属于电动汽车控制技术领域,该方法通过车速滤波解算实时加速度,有效的抑制了车速差分导致的噪声,并对估算的坡度进行滤波,以滤波后一段时间坡道的稳定值作为陡坡缓降的输入,建立了陡坡缓降车速与坡度的二维表格,以实现针对不同坡度动态调节下坡车速的目的。
Dynamic ramp estimation-based abrupt slope slow descent method
一种基于动态坡道估算的陡坡缓降方法
2022-11-29
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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