Electrical braking device for vehicle trailers and method for operation thereof
First Claim
1. An electric brake device for vehicle trailers with a rigid hitch arrangement and a trailer coupling, the device comprising:
- a brake means has having a power supply unit that can be connected to a towing vehicle, an control for determining the braking force needed; and
a sensing means is designed as a force-sensing device, which can be mounted at the rigid hitch arrangement and picks up the axial tensile and compressive forces acting in the hitch arrangement without movement.
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Accused Products
Abstract
A method for electric braking of a vehicle trailer and a device for vehicle trailers is provided. The vehicle trailer has a rigid hitch or drawbar arrangement (7) and is braked by the overrun forces generated as a result of braking of the tractor vehicle (2). The brake device (1) has a force measuring arrangement which can be mounted at the rigid hitch arrangement (7) and statically records the compression and tension forces acting axially on the hitch arrangement (7) using tensometer strips (24, 25) to determine the wheel brake force needed for braking via a controller that correspondingly actuates the electrical wheel brakes.
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Citations
16 Claims
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1. An electric brake device for vehicle trailers with a rigid hitch arrangement and a trailer coupling, the device comprising:
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a brake means has having a power supply unit that can be connected to a towing vehicle, an control for determining the braking force needed; and
a sensing means is designed as a force-sensing device, which can be mounted at the rigid hitch arrangement and picks up the axial tensile and compressive forces acting in the hitch arrangement without movement. - View Dependent Claims (2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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4. A brake device in accordance with claim, wherein the wire strain gauges are arranged in the area of the neutral axis of the pipe section.
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16. A process for actuating an electric brake device of a vehicle trailer which is equipped with a rigid hitch arrangement and a trailer coupling, wherein a brake device has a power supply unit, which can be connected to a towing vehicle, electric wheel brakes and a sensing means as well as a control for determining and introducing the necessary braking forces, wherein the overriding forces generated at the vehicle trailer during the braking of the towing vehicle are sensed at the rigid hitch arrangement as axial tensile and compressive forces acting in the hitch arrangement without movement based on compressions or strains by means of said wire strain gauges.
Specification