The invention discloses a parallel shaft type electronic power-assisted steering system steering clamping stagnation detection and early warning method which comprises the following steps: after a vehicle is ignited and started, a steering system controller carries out power-on self-test; a power-on initial value of the rotor position of the power-assisted motor is obtained, when the vehicle meets a preset activation condition, a clamping stagnation detection function is activated, and a motor torque waveform mode of a corresponding type is output according to the magnitude and positive and negative of the hand torque of a steering wheel; according to the hand torque of the steering wheel, the basic power-assisted torque is obtained by looking up the basic power-assisted curve, and the output target motor torque is superposed to serve as the final request torque of the power-assisted motor. According to the method, additional sensors do not need to be installed, necessary input signals are obtained by receiving the electronic power-assisted steering system and the CAN communication nodes of the whole vehicle, the function of actively detecting steering clamping stagnation is achieved, and cost is saved.
本发明公开了一种平行轴式电子助力转向系统转向卡滞检测及预警方法,包括如下步骤:车辆点火启动后,转向系统控制器进行上电自检;获取助力电机转子位置上电初始值,当车辆满足预设激活条件时,激活卡滞检测功能,根据方向盘手力矩的大小和正负,输出对应类型的电机扭矩波形模式;根据方向盘手力矩,查表基本助力曲线得到基本助力扭矩,并叠加输出的目标电机扭矩,作为助力电机最终请求扭矩。本发明无需安装额外的传感器,通过接收电子助力转向系统和整车CAN通讯节点来获取必要的的输入信号,来实现主动探测转向卡滞功能,节省成本。
Steering clamping stagnation detection and early warning method for parallel shaft type electronic power-assisted steering system
平行轴式电子助力转向系统转向卡滞检测及预警方法
2023-11-21
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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