The invention relates to a vehicle torque distribution method and device, a controller and a storage medium. The method comprises the following steps: acquiring a power loss model of each electric driving unit of a target vehicle at different vehicle speeds; according to the total wheel electric torque requirement of the target vehicle, determining the wheel electric torque requirement and the size sequence of all the electric driving units on the two sides of the vehicle body; under each vehicle speed state of the target vehicle, according to the power loss model of each electric driving unit and a preset wheel electric torque optimization algorithm, obtaining a condition that the sum of the power losses of all the electric driving units on the same side is minimum; solving the condition that the sum of the power losses of all the electric driving units on the same side is minimum, and obtaining candidate wheel electric torque distribution of each electric driving unit; and according to the total wheel electric torque requirement of the target vehicle and the wheel electric torque requirement and the size sequence of the electric driving units on the two sides of the vehicle body, determining the optimal distribution mode meeting the requirement that the sum of the power losses of all the electric driving units on the same side is minimum in the candidate wheel electric torque distribution modes.
本申请涉及一种车辆转矩分配方法、装置、控制器和存储介质。该方法包括:获取目标车辆不同车速下每个电驱动单元的功率损耗模型;根据目标车辆的总车轮电转矩需求,确定车体两侧各电驱动单元的车轮电转矩需求及大小顺序;在目标车辆的每个车速状态下,根据每个电驱动单元的功率损耗模型及预设的车轮电转矩优化算法,得到同侧全部电驱动单元功率损耗总和最小条件;求解同侧全部电驱动单元功率损耗总和最小条件,得到每个电驱动单元的候选车轮电转矩分配;根据目标车辆的总车轮电转矩需求以及车体两侧各电驱动单元的车轮电转矩需求及大小顺序,在候选车轮电转矩分配方式中,确定出满足同侧全部电驱动单元功率损耗总和最小的最优分配方式。
Vehicle torque distribution method and device, controller and storage medium
车辆转矩分配方法、装置、控制器和存储介质
2021-05-18
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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