The invention discloses a method for detecting the automobile running ramp gradient in real time, and the method comprises the following steps: obtaining automobile parameters which comprise the radius of a wheel, the weight of an automobile body and the driving mode of an automobile; acquiring environmental parameters, wherein the environmental parameters comprise atmospheric pressure, temperature, air resistance coefficient and rolling resistance coefficient; collecting signals of a basic sensor of the automobile every time the automobile runs for a certain distance in the uphill process, wherein the signals comprise a speed signal, an engine torque force signal, a gear shifting signal and a brake signal; calculating the acceleration of the automobile in the uphill process; judging whether the signal meets a qualified standard or not, and if not, restarting to execute a step S3, and if yes, continuing to execute the operation, wherein the qualified standard is preset manually; calculating air resistance, traction force and rolling resistance in the uphill process of the automobile; calculating the ramp resistance; checking the ramp resistance direction; and calculating the ramp gradient. On the basis of not increasing sensors, the slope gradient can be calculated, and the cost is extremely low.
本发明公开了一种实时检测汽车行驶坡道坡度的方法,包括以下步骤:获取车辆参数,所述车辆参数包括车轮半径、车身重量以及汽车的驱动方式;获取环境参数,所述环境参数包括大气压强、温度、空气阻力系数、滚动阻力系数;车辆上坡过程中每行驶一定距离采集一次车辆基础传感器的信号,所述信号包括速度信号、引擎扭矩力信号、换挡信号、刹车信号;计算车辆上坡过程中的加速度;判断信号是否符合合格标准,如不符合,则从S3重新开始执行;如符合,则继续执行;合格标准为预先通过人为设定;计算车辆上坡过程中的空气阻力、牵引力、滚动阻力;计算坡道阻力;检验坡道阻力方向;计算坡道坡度。本发明在不增加传感器的基础上,即可计算坡道坡度,成本极低。
Method for detecting automobile running ramp gradient in real time
一种实时检测汽车行驶坡道坡度的方法
2021-01-22
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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