Driver assistance system for a vehicle

Details Driver assistance system for a vehicle Driver assistance system for a vehicle

1996-09-19

1998-06-09

Zanelli, Michael

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle subsystem or accessory control

180168, 340439, 348119, B62D 504

Patent

active

057651167

ABSTRACT:
A video camera or equivalent sensor is mounted on a vehicle and used to detect the lane markings on the road (usually the white painted lines). An associated signal processor (11) estimates the vehicle's lateral position in relation to the lane markings. An electric motor (4) coupled to the steering mechanism (1) is used to provide a torque input to the steering which may either assist or oppose the steering torque from the driver. The processor (11) is designed to assist the driver to maintain the vehicle's lane position by holding the vehicle at a set-point using a biasing torque. This simulates the effect of the lane being cambered upwards towards the lane edges. However the driver is able to override or cancel the effect if the driver applied steering torque exceeds a prescribed torque threshold.

REFERENCES:
patent: 4401181 (1983-08-01), Schwarz
patent: 5208750 (1993-05-01), Kurami et al.
patent: 5245422 (1993-09-01), Borcherts et al.
patent: 5293162 (1994-03-01), Bachalo
patent: 5302956 (1994-04-01), Asbury et al.
patent: 5318143 (1994-06-01), Parker et al.
patent: 5351044 (1994-09-01), Mathur et al.
patent: 5373911 (1994-12-01), Yasui
patent: 5465079 (1995-11-01), Bouchard et al.

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