Invention Grant
- Patent Title: Steer torque manager for an advanced driver assistance system of a road vehicle
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Application No.: US15888717Application Date: 2018-02-05
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Publication No.: US10464603B2Publication Date: 2019-11-05
- Inventor: Lars Johannesson Mardh , Malin Haglund
- Applicant: VOLVO CAR CORPORATION
- Applicant Address: SE Gothenburg
- Assignee: Volvo Car Corporation
- Current Assignee: Volvo Car Corporation
- Current Assignee Address: SE Gothenburg
- Agency: Brooks Kushman P.C.
- Priority: EP17155512 20170210
- Main IPC: B62D15/02
- IPC: B62D15/02 ; B62D5/04 ; B62D6/00 ; B62D6/10 ; B62D1/28 ; B60L1/00 ; B60W50/04 ; B60W40/08

Abstract:
A steer torque manager for an advanced driver assistance system of a road vehicle and a method therefor. A driver-in-the-loop functionality determines when to hand over control to a driver. A wheel angle controller uses an advanced driver assistance system wheel angle request to produce an overlay torque request to be added to a torque request from an electrical power assisted steering. The steer torque manager controls the driver-in-the-loop functionality based on amplitude and frequency content of a torsion bar torque related signal which is filtered to attenuate an amplitude thereof at frequencies up to 2 Hz. The overlay torque request to be provided by the wheel angle controller is modulated based on a measure of driver activity derived from the filtered torsion bar torque related signal, where more recent values are weighted higher than older values, using a time window of 0.5-3 seconds.
Public/Granted literature
- US20180229769A1 STEER TORQUE MANAGER FOR AN ADVANCED DRIVER ASSISTANCE SYSTEM OF A ROAD VEHICLE Public/Granted day:2018-08-16
Information query
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