The invention discloses a new energy vehicle power-assisted steering control method and system, and belongs to the technical field of new energy vehicles. Comprising the steps of obtaining the maximum allowable output power of the high-voltage energy storage system; based on a comparison result of the maximum allowable output power and a preset gradient power threshold value, the running state of the new energy vehicle is determined; and determining a steering control strategy according to the running state of the new energy vehicle. Effective power-assisted steering can be continuously provided for the whole vehicle by quickly responding and identifying two states and quickly switching in, and the vehicle speed, the oil pump operation time, whether the whole vehicle has a steering demand, faults and storage battery voltage abnormity conditions are monitored in real time and processed in real time, so that the vehicle can safely drive out of a dangerous area when having faults, the vehicle speed is reduced to a safety threshold value, and the safety of the vehicle is ensured. And the oil pump stops working. The problem that safety risks are caused due to the fact that an existing new energy vehicle breaks down in the running process but double-source steering switching is not timely is solved.
本发明公开了一种新能源车辆转向助力控制方法及系统,属于新能源车辆技术领域。包括:获取高压储能系统的最大允许输出功率;基于所述最大允许输出功率和预设梯度功率阈值的比较结果,确定新能源车辆的运行状态;根据新能源车辆的运行状态,确定转向控制策略。通过快速响应,识别两种状态快速切入可持续给整车提供有效转向助力,并且实时监测车速、油泵运行时间、整车有无转向需求、故障及蓄电池电压异常情况并进行实时处理,使车辆发生故障时可以安全驶出危险区域、车速降至安全阈值内,油泵才停止工作。解决了现有新能源车辆在运行过程中发生故障但双源转向切换不及时导致安全风险的问题。
Power-assisted steering control method and system for new energy vehicle
一种新能源车辆转向助力控制方法及系统
14.01.2025
Patent
Elektronische Ressource
Chinesisch
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