Automatic control system for a friction-encumbered signaling device in a motor vehicle
AssigneeRobert Bosch GmbH
InventorsJurgen Wietelmann, Roland Karrelmeyer
Life of this patent
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Abstract
An automatic control system for a friction-encumbered signaling device (50) in a motor vehicle with the system including a first automatic controller (10) that compares an actual signaling-device position (UI) to a desired signaling-device position (US), with the first automatic controller being capable of calculating at least one input variable for the two-step action controller (40) that is connected to the load side of the first automatic controller, and the two-step action controller (40) including the capability for determining a variable hysteresis width E which is dependent upon system operating parameters.
Claims11
An automatic control system for a friction-encumbered signaling-device (50) in a motor vehicle, comprising:
- a first automatic controller (10) for comparing a first variable indicative of an actual signaling-device position (UI) and a second variable indicative of a desired signaling-device position (US), and calculating at least one input variable for a two-step action controller (40);
- and
- the two-step action controller (40) connected to a load side of the first automatic controller (10), with the two-step-action controller (40) having a variable hysteresis width E that is controlled by the first automatic controller (10) dependent upon predetermined operating parameters, with there being a selectable hysteresis width for each set of operating parameters.
An automatic control system for a friction-encumbered signaling-device (50) in a motor vehicle, comprising:
- a first automatic controller (10) for comparing a first variable indicative of an actual signaling-device position (UI) and a second variable indicative of a desired signaling-device position (US), and calculating at least one input variable for a two-step action controller (40);
- and
- the two-step action controller (40) connected to a load side of the first automatic controller (10), with the two-step action controller (40) having a variable hysteresis width E that is controlled by the first automatic controller (10) dependent upon predetermined operating parameters, with there being a selectable hysteresis width for each set of operating parameters, the variable hysteresis width E for controlling continuous switching of the two-step action controller.
An automatic control system for a friction-encumbered signaling-device (50) in a motor vehicle, comprising:
- a first automatic controller (10) for comparing a first variable indicative of an actual signaling-device position (UI) and a second variable indicative of a desired signaling-device position (US), and calculating a third variable indicative of the desired signaling-device current (IS) that is input to a two-step action controller (40);
- and
- the two-step action controller (40) connected to a load side of the first automatic controller (10) for combining at least the third variable indicative of a desired signaling-device current (IS), a fourth variable indicative of an actual signaling-device current (II) output from the signaling-device (50), and a differentiated fifth variable indicative of the actual signaling-device position (UI) to generate a sixth variable indicative of a combined value of the third, fourth, and differentiated fifth variables, with the two-step action controller (40) having a seventh variable indicative of a hysteresis width E input thereto that is controlled by system operating parameters, the seventh variable for controlling continuous switching the fourth variable between two predetermined levels.
Dependencies are inferred from the claim text.