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1. (CN106394676) 使用混合方法的增强的方向盘握持检测

专利局 : 中国
申请号: 102016000623640 申请日: 01.08.2016
公布号: 106394676 公布日: 15.02.2017
公布类型: A
国际专利分类:
B62D 15/02
B 作业;运输
62
无轨陆用车辆
D
机动车;挂车
15
其他类目不包含的转向机构
02
转向位置指示器
申请人: GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人: STEPHEN R. PASTOR
BAKHTIAR B. LITKOUHI
JIN-WOO LEE
KENNETH L. OBLIZAJEK
优先权数据: 15/216916 22.07.2016 US
62/199703 31.07.2015 US
标题: (EN) ENHANCED STEERING WHEEL HOLD DETECTION BY A HYBRID METHOD
(ZH) 使用混合方法的增强的方向盘握持检测
摘要: front page image
(EN) A system and method for determining whether a driver is holding a vehicle steering wheel. The vehicle will include an electric power steering system and may further include autonomous or semi-autonomous driving features, such as Lane Centering Control or Lane Keeping Assist. The system includes a passive detection technique which monitors steering torque and steering angle, determines a resonant frequency of oscillation of the steering system from the measured data, and compares the resonant frequency to a known steering system natural frequency to make a hands-on/off determination. If the passive technique results are below a confidence threshold, then an active technique is employed which provides a steering angle perturbation and measures the frequency response, where the perturbation signal has characteristics which are prescribed based on the results of the passive technique. A steering torque greater than a threshold value is also an indication of the driver holding the steering wheel.
(ZH) 本发明涉及使用混合方法的增强的方向盘握持检测,公开了一种用于确定驾驶员是否正握持车辆方向盘的系统和方法。车辆将包括电动助力转向系统,并且可以进一步包括诸如车道居中控制或者车道保持辅助的自动或半自动驾驶特征。系统包括被动检测技术,其监测转向扭矩和转向角、根据测得的数据确定转向系统的振荡的谐振频率并且将该谐振频率与已知转向系统自然频率相比较,以做出手握持/手脱离判定。如果被动技术结果低于置信度阈值,则采用主动技术,其提供转向角扰动并且测量频率响应,其中扰动信号具有基于被动技术的结果而指定的特性。大于阈值的转向扭矩也是驾驶员正握持方向盘的指示。