Switching device and method for switching loads
AssigneeKNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
InventorsFrank Scholl, Johannes Appl, Michael Belling
Life of this patent
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Abstract
A switching apparatus for switching a first actuator and a second actuator between a power supply and a ground, including: a first switch for switching a first current path between the first actuator and the ground; a second switch for switching a second current path between the second actuator and the ground; and a third switch for switching a current path between the power supply and the first actuator and a current path between the power supply and the second actuator; in which, as a result of the switching, the third switch simultaneously closes or opens the current path to the first actuator and to the second actuator. Also described are a related brake system and method.
Claims15
A switching apparatus for switching a first actuator and a second actuator between a power supply and a ground, comprising:
- a first switch for switching a first current path between the first actuator and the ground;
- a second switch for switching a second current path between the second actuator and the ground;
- and
- a third switch for switching a current path between the power supply and the first actuator and a current path between the power supply and the second actuator;
- wherein a first unit includes the first switch and a first actuator, which is in series between the first switch and the ground,
- wherein a second unit includes the second switch and a second actuator, which is in series between the second switch and the ground,
- wherein the first unit and the second unit are parallel to each other or are interconnected with one another in antiseries to provide polarity-reversal protection, and together form a switching unit,
- wherein the third switch is in series with the switching unit, and
- wherein, as a result of the switching, the third switch simultaneously closes or opens the current path to the first actuator and to the second actuator.
A brake system of a vehicle, comprising:
- a first pressure-controlled valve;
- a second pressure-controlled valve;
- and
- a switching apparatus for switching a first actuator and a second actuator between a power supply and a ground, including:
- a first switch for switching a first current path between the first actuator and the ground;
- a second switch for switching a second current path between the second actuator and the ground;
- and
- a third switch for switching a current path between the power supply and the first actuator and a current path between the power supply and the second actuator,
- wherein, as a result of the switching, the third switch simultaneously closes or opens the current path to the first actuator and to the second actuator,
- wherein a first unit includes the first switch and the first actuator, which is in series between the first switch and the ground,
- wherein a second unit includes the second switch and the second actuator, which is in series between the second switch and the ground,
- wherein the first unit and the second unit are parallel to each other or are interconnected with one another in antiseries to provide polarity-reversal protection, and together form a switching unit,
- wherein the third switch is in series with the switching unit, and
- wherein the first actuator is the first pressure-controlled valve and the second actuator is the second pressure-controlled valve.
A method for switching a first actuator and a second actuator between a power supply and a ground, the method comprising:
- performing, via a switching apparatus, the following:
- switching a first switch to establish or to interrupt a first current path between the first actuator and the ground;
- and/or
- switching a second switch to establish or to interrupt a second current path between the second actuator and the ground;
- and
- switching a third switch to establish or to interrupt a current path between the power supply and the first actuator and/or a current path between the power supply and the second actuator;
- wherein the switching apparatus includes a first unit and second unit,
- wherein the first unit includes the first switch and the first actuator, which is in series between the first switch and the ground,
- wherein the second unit includes the second switch and the second actuator, which is in series between the second switch and the ground,
- wherein the first unit and the second unit are parallel to each other or are interconnected with one another in antiseries to provide polarity-reversal protection, and together form a switching unit,
- wherein the third switch is in series with the switching unit, and
- wherein as a result of the switching, the third switch simultaneously closes or opens the current path to the first actuator and to the second actuator.
Dependencies are inferred from the claim text.