Operating method and device for performing open-loop or closed-loop control for a permanent brake system of a vehicle
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United States of America Patent
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Oct 24, 2017
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app pub date -
Sep 30, 2016
filing date -
Oct 1, 2015
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Abstract
An operating method and device for a permanent brake system of a motor vehicle. The brake system includes a primary and a secondary permanent brake. Each brake generates respective adjustable braking torque components. The first primary brake has a response than the second primary brake. A third braking torque component is adjusted by the secondary brake. The permanent-brake braking request is applied by the first primary brake until the braking request exceeds a first threshold. The first threshold corresponds to a value less than or equal to a maximum braking torque generated by the first primary brake. After exceeding the first threshold, a component of the request is applied by the secondary permanent brake. A second threshold value corresponds to a value less than or equal to a braking torque that can be generated when the first primary permanent brake device interacts with the secondary permanent brake.
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