The invention discloses a method for calculating the load of a hybrid vehicle. (1) road slope estimation; when the vehicle A is on the ramp, the longitudinal acceleration sensor has a gravity component gsin theta on the x axis; b, the acceleration # imgabs0 # on the x axis, wherein # imgabs1 # is the acceleration calculated by the longitudinal vehicle speed at the adjacent moment; according to the stress relation of the vehicle on the ramp; ft is driving force, Fi is gradient resistance, Fw is air resistance, and Ff is rolling resistance, the defect that in the prior art, load estimation errors caused by gradient change are neglected is overcome, calculation precision is effectively improved, and real loads can be reflected on different gradients.
本发明公布了一种混动车辆载荷的计算方法,它包括如下步骤;①、路面坡度估算;A车辆在坡道上,纵向加速度传感器在x轴上存在重力分量gsinθ;B.x轴上加速度#imgabs0#其中#imgabs1#为相邻时刻纵向车速计算出的加速度;根据车辆在坡道上的受力关系;#imgabs2#式中Ft为驱动力,Fi为坡度阻力,Fw为空气阻力,Ff为滚动阻力,它克服了现有技术中现有技术忽略坡度变化带来的载荷估算误差的缺点,具有有效地提升的计算精度,在不同坡度上均可以反应出真实载荷。
Method for calculating load of hybrid vehicle
一种混动车辆载荷的计算方法
2023-12-08
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 |