Electricity: motive power systems – Positional servo systems – With compensating features
Patent
1996-06-03
1997-10-21
Ro, Bentsu
Electricity: motive power systems
Positional servo systems
With compensating features
123361, 180178, B60K 3104
Patent
active
056800240
ABSTRACT:
A vehicle speed control system provides adaptive compensation for compliance in a linking mechanism between a throttle control member and a throttle which creates hysteresis in throttle movement. The system has a vehicle speed sensor, an actuator having an output linked to the throttle control member, an actuator position signal generator and a control responsive to the vehicle speed sensor and the actuator position signal generator for positioning the actuator in closed loop control with a major loop in response to vehicle speed and a minor loop in response to actuator position. The control repeatedly determines when vehicle speed is not within a predetermined range and responds (1) deriving a desired actuator position signal, a present actuator position signal and a position error signal from the difference therebetween, (2) deriving an output position signal from the desired actuator position signal when the position error signal is not zero, (3) modifying the output position signal by a compliance compensation value for actuator movement in a first direction, and (4) activating the actuator to a position corresponding to the output position signal. The control further accumulates the second and subsequent position error signals for actuator movement in the first direction as an accumulated difference value and, when actuator movement is initiated in a second direction, updates the compliance compensation value as a predetermined percentage of the sum of the compliance compensation value and the accumulated difference value.
REFERENCES:
patent: 4134373 (1979-01-01), Kibler et al.
patent: 4217867 (1980-08-01), Madsen et al.
patent: 4684866 (1987-08-01), Nehmer et al.
patent: 4850250 (1989-07-01), Nehmer et al.
patent: 4928780 (1990-05-01), Tada
patent: 5014806 (1991-05-01), Hamada
patent: 5119899 (1992-06-01), Johnson et al.
patent: 5524724 (1996-06-01), Nishigaki et al.
Budzier Timothy Lee
Crawford Daniel Alexander
Ehle David Lynn
Lane Susan Jean
Unuvar Lisa Marie
General Motors Corporation
Ro Bentsu
Sigler Robert M.
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