Method for operating a braking device and braking device for motor vehicles
AssigneeKNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
InventorsAndreas Leinung, Georg Mueller, Marius Schmid
Life of this patent
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Abstract
A method operates a braking device for motor vehicles, in particular for utility vehicles. Along a trailer supply line for supplying air to a parking brake of a trailer and/or a trailer control line for supplying air to an operating brake of a trailer, the air pressure is measured by at least one pressure transducer and is transmitted in the form of an electric signal to an electronic control unit of the motor vehicle. In the event of a faulty pressure change response, an open trailer supply line and/or an open trailer control line is detected.
Claims14
A method for operating a braking device for a motor vehicle, comprising the acts of:
- along a trailer supply line for aerating a parking brake of a trailer which is provided such that an output of a first switching valve is connected to a first trailer coupling unit, measuring air pressure by way of a first pressure transducer;
- along a trailer control line for aerating a service brake of a trailer, which is provided such that an output of a second switching valve is connected to a second trailer coupling unit, measuring air pressure by way of a second pressure transducer;
- transmitting the measured air pressures, in the form of electrical signals, to an electronic control unit of the motor vehicle, so that in case of a faulty pressure change behavior, an open trailer supply line and/or an open trailer control line is detected.
A braking device for a motor vehicle, comprising:
- at least one compressed air fitting;
- an electronic control unit;
- at least one input element;
- a first switching valve;
- a first pressure transducer;
- and
- a first trailer coupling unit and a second trailer coupling unit, wherein
- the electronic control unit is connected to the input element, a control input of the first switching valve, and the first pressure transducer,
- a trailer supply line is provided such that an output of the first switching valve is connected to the first trailer coupling unit,
- a trailer control line is provided, and
- a second switching valve,
- wherein
- the trailer control line is provided such that an output of the second switching valve is connected to the second trailer coupling unit,
- the first pressure transducer is provided in conjunction with an output of the first switching valve, and
- a second pressure transducer is provided in conjunction with an output of the second switching valve.
Dependencies are inferred from the claim text.