Active return control method, device and equipment for electric power steering system and medium
Active return control method, device and equipment for electric power steering system and medium
- Neue Suche nach: ZHANG DI
- Neue Suche nach: WANG YONG
- Neue Suche nach: GUO TING
- Neue Suche nach: ZHANG MINGJIE
- Neue Suche nach: ZHANG DI
- Neue Suche nach: WANG YONG
- Neue Suche nach: GUO TING
- Neue Suche nach: ZHANG MINGJIE
The invention relates to the technical field of electric power steering, which comprises the following steps of: calculating a basic return current: carrying out lookup calculation by utilizing a lookup interpolation method, and calculating the return current according to a steering wheel angle; calculating a steering wheel return angular velocity: searching and calculating a target angular velocity gamma 1 by using a table look-up interpolation method; acquiring the actual angular velocity gamma 2 of the steering wheel; a return current coefficient is calculated, and return current coefficients at different vehicle speeds are calculated through a look-up table interpolation method; calculating a return current gain coefficient according to a formula of 1 + (gamma1-gamma2)/gamma1; the return current is equal to return base current * return current coefficients under different vehicle speeds * return current gain coefficients. According to the method, the basic return current is calculated, the specific steering wheel angle and the basic return current under the specific steering wheel angle are set, the return current gain coefficient is set, the specific vehicle speed and the return current coefficient under the specific vehicle speed are set, the vehicle return current is calculated, the return current is corrected, and the return current calculation result is accurate.
本申请涉及电动助力转向技术领域，包括如下步骤：计算基础回正电流：利用查表插值法进行查找计算，根据方向盘角度计算出回正电流；计算方向盘回正角速度：利用查表插值法进行查找计算出目标角速度γ1；并获取方向盘实际角速度γ2；计算回正电流系数，利用查表插值法计算出不同车速下的回正电流系数；计算回正电流增益系数：公式为：1+(γ1‑γ2)/γ1；回正电流等于回正基础电流*不同车速下的回正电流系数*回正电流增益系数。本发明通过计算基础回正电流，并设定特定方向盘角度及特定方向盘角度下的基础回正电流，设定回正电流增益系数，设定特定车速及特定车速下的回正电流系数，计算车辆回正电流，并对回正电流进行修正，回正电流计算结果精确。
Dokumentinformationen
Active return control method, device and equipment for electric power steering system and medium
电动助力转向系统主动回正控制方法、装置、设备及介质
2023-10-27
Patent
Elektronische Ressource
Chinesisch
| IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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