The invention provides a method for automatically detecting the sand working condition of a vehicle by adopting a counter, which comprises the following steps that: after the vehicle enters a sand braking mode, the value of the counter is set as an initial value of the sand braking mode, and the initial value of the sand braking mode is equal to the sum of a first detection threshold value and an offset value; determining an adjustment step for adjusting the value of the counter on the basis of the rolling resistance and/or the steering wheel angle of the vehicle; on the basis of the initial value of the sand braking mode, the current value of a counter is obtained by accumulatively adjusting the step length; the current value of the counter is compared with the first detection threshold value and/or a second detection threshold value smaller than the first detection threshold value, and whether the sand land is detected or not is determined based on the comparison result, specifically, when the current value of the counter is larger than the first detection threshold value, it is determined that the sand land working condition is detected; when the current value of the counter is smaller than a second detection threshold value, it is determined that the sand land working condition is not detected; and when the current value of the counter is between the first detection threshold value and the second detection threshold value, the current value of the counter is set to be the sand braking mode initial value again, and it is determined that the sand working condition is detected.
本发明提供了一种采用计数器自动化检测车辆的沙地工况的方法,其包括:在车辆进入沙地制动模式之后,将计数器的值设置成沙地制动模式初始值,其中,沙地制动模式初始值等于第一检测阈值与偏移量值之和;基于车辆的滚动阻力和/或方向盘转角确定用于调节计数器的值的调节步长;在沙地制动模式初始值的基础上,通过累计调节步长来获得计数器的当前值;以及将计数器的当前值与所述第一检测阈值和/或小于所述第一检测阈值的第二检测阈值相比较,并基于比较结果确定是否检测到沙地,其包括:在计数器的当前值大于所述第一检测阈值时,确定为检测到沙地工况;在计数器的当前值小于第二检测阈值时,确定为未检测到沙地工况;以及在计数器的当前值在第一检测阈值与第二检测阈值之间时,将计数器的当前值再次设置成所述沙地制动模式初始值,并确定为检测到沙地工况。
Sand working condition detection method and detection unit for vehicle
车辆的沙地工况检测方法和检测单元
2024-11-12
Patent
Electronic Resource
Chinese
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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