Method of correcting steering of a road driven vehicle

Details Method of correcting steering of a road driven vehicle Method of correcting steering of a road driven vehicle

1997-12-08

1999-07-20

Cuchlinski, Jr., William A.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle subsystem or accessory control

701 42, 280 551, 280211, 280775, 280779, 180421, 180422, 180446, G06F 1900

Patent

active

059250836

ABSTRACT:
To support the driver of a road vehicle, a yaw velocity r (in radian/s) around a vertical axis is measured, a driving speed v.sub.x (in m/s) is determined, an acceleration a.sub.x (in m/s.sup.2) in the driving direction is measured, a lateral acceleration is measured at two randomly selected locations at a distance of l.sub.a as a.sub.y1 (in m/s.sup.2, front) and a.sub.y2 (m/s.sup.2, rear), a steering wheel angle .delta..sub.H is measured at the vehicle steering column with a potentiometer, a vehicle wheel angle .delta..sub.L =.delta..sub.H /i.sub.L commanded by the driver is computed, a variable angle .beta..sub.F at the front axis is computed, and these measured parameters are used to calculate, in a microprocessor, according to the equations (4, 20 and 21), an additional steering angle .delta..sub.C, whose addition to the vehicle wheel angle .delta..sub.L commanded by the driver results in the overall wheel angle .delta..sub.F =.delta..sub.L +.delta..sub.C.

REFERENCES:
patent: 5515275 (1996-05-01), Ackermann
patent: 5579245 (1996-11-01), Kato
patent: 5734570 (1998-03-01), Arlandis

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