According to the torque limiting method, the electronic equipment and the vehicle, when the current slip rate is calculated, the navigation estimation vehicle speed and the wheel speed are introduced to correct the current detection vehicle speed, the accuracy of the current slip rate is guaranteed, then the accuracy of calculating the road adhesion coefficient is improved, and the torque limiting precision is improved. When the road adhesion coefficient is estimated, the recognition area of the current scanning image is corrected to improve the accuracy of road type recognition, so that the precision of estimating the road adhesion coefficient is improved, and the accuracy of torque limitation is ensured. When the limiting torque is determined, the road surface type confidence coefficient is introduced to reduce the difference between the target road surface adhesion coefficient and the true value, so that the precision of the limiting torque determined according to the target road surface adhesion coefficient is ensured, and the target road surface adhesion coefficient can be fully utilized when request limiting is carried out according to the limiting torque; and the wheels of the vehicle cannot slip while the dynamic property is ensured, so that the driving safety is ensured.
本申请提供一种扭矩限制方法、电子设备及车辆,在计算当前滑移率时引入导航估计车速和车轮轮速对当前检测车速进行修正,保证当前滑移率的准确性,进而提升计算路面附着系数的准确性,提高扭矩限制精度。在估算路面附着系数时,通过对当前扫描图像的识别区域进行修正来提高路面类型识别的准确性,进而提高估算路面附着系数的精度,保证扭矩限制的准确性。在确定限制扭矩时,引入路面类型置信度来缩小目标路面附着系数与真实值之间的差距,以保证根据目标路面附着系数确定的限制扭矩的精度,进而保证根据限制扭矩进行请求限制时,能够充分的利用目标路面附着系数,在保证动力性的同时保证车辆的车轮不会打滑,保证行驶的安全性。
Torque limiting method, electronic equipment and vehicle
扭矩限制方法、电子设备及车辆
2025-04-25
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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