公开(公告)号：US20170158227A1

公开(公告)日：2017-06-08

申请号：US15367266

申请日：2016-12-02

Applicant: VOLVO CAR CORPORATION

Inventor： Diomidis KATZOURAKIS ,  Caspar HANSELAAR ,  Mathias LIDBERG

IPC: B62D5/04 ,  B62D6/00 ,  B62D6/04 ,  B62D6/10

CPC classification number: B62D6/006 ,  B60T2201/087 ,  B62D6/002 ,  B62D6/007 ,  B62D6/008 ,  B62D15/025

Abstract: A vehicle steering arrangement for a vehicle comprises a rack a position sensor, a steering column, a steering wheel, a torque sensor arranged to sense a torque applied onto the steering wheel and arranged to provide a torque signal representative thereof, an electronic control unit provided with a virtual steering model, a rack-mounted electromechanical actuator, and a force obtaining arrangement configured to obtain forces of steered wheels acting on the rack. The electronic control unit is configured to provide a virtual rack position based on the virtual steering model and at least a combination of the obtained forces and the torque signal, and is arranged to control the rack-mounted electromechanical actuator such that the current position of the rack is controlled towards the virtual rack position. The present disclosure also relates to an autonomous vehicle steering arrangement, a vehicle and a method of steering a vehicle.

公开(公告)号：US20160121925A1

公开(公告)日：2016-05-05

申请号：US14924825

申请日：2015-10-28

Applicant: Volvo Car Corporation

Inventor： Nenad LAZIC ,  Diomidis KATZOURAKIS ,  Claes OLSSON

IPC: B62D6/10

CPC classification number: B62D6/10 ,  B62D15/025

Abstract: A method is provided for intelligent scaling of torque overlay intervention for a semi-autonomous steering system in a road vehicle having a semi-autonomous steering function arranged to selectively apply a steering wheel overlay torque. If decided that a driver is significantly overriding an intervention, the overlay torque is scaled by a scaling factor being a function of applied steering wheel torque. If decided that the driver has been significantly overriding the intervention for more than a pre-determined first time period, the scaling factor is set to its lowest possible value for a specific driving situation. If decided that the driver has been significantly overriding the intervention for more than a pre-determined second time period, where the pre-determined second time period is equal to or exceeds the pre-determined first time period, the scaling factor is faded-out.

Abstract translation: 提供了一种用于在具有半自主转向功能的道路车辆中的半自主转向系统的扭矩叠加干预的智能缩放的方法，其布置成选择性地施加方向盘重叠扭矩。 如果决定驱动程序明显覆盖干预，则覆盖扭矩通过作为所应用的方向盘扭矩的函数的比例因子来缩放。 如果决定驱动程序已经将干预显着地超过预定的第一时间段，那么缩放因子被设置为特定驾驶状况的最低可能值。 如果决定驾驶员在预定的第二时间周期等于或超过预定的第一时间段的情况下，大大超过干预超过预定的第二时间段，则缩放因子被淡出 。