Method and braking control device for stabilizing a vehicle combination
First Claim
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1. A method for stabilizing a vehicle combination including a towing vehicle and at least one trailer vehicle, the method comprising:
- determining wheel revolution rates of a driven axle of the towing vehicle and a vehicle speed of the towing vehicle;
checking, as a first braking criterion, whether there is braking wheel slip at the driven axle of the towing vehicle without the operation of a wheel brake of the driven axle of the towing vehicle by carrying out a comparison of the vehicle speed of the towing vehicle with a wheel speed determined from the wheel revolution rates of the driven axle;
checking, as an exclusion criterion, whether one or more exclusion conditions are met andactuating, in response to the first braking criterion being met and the exclusion criterion not being met, at least one wheel brake of the trailer vehicle such that the at least one wheel brake of the trailer vehicle is not actuated when the exclusion condition is met,wherein the one or more exclusion conditions include a first exclusion condition being a presence of driving uphill and a second exclusion condition being a presence of active driving stability control on the towing vehicle, andwherein the exclusion criterion is met if at least one of driving uphill and active driving stability control on the towing vehicle is present.
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Abstract
A method for stabilizing a vehicle combination including a towing vehicle and at least one trailer vehicle includes determining wheel revolution rates of a driven axle of the towing vehicle and a vehicle speed of the towing vehicle, checking, as a first criterion, whether there is braking wheel slip at the driven axle of the towing vehicle without the operation of a wheel brake of the driven axle of the towing vehicle, and actuating, in response to the first criterion being met, at least one wheel brake of the trailer vehicle.
23 Citations
8 Claims
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1. A method for stabilizing a vehicle combination including a towing vehicle and at least one trailer vehicle, the method comprising:
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determining wheel revolution rates of a driven axle of the towing vehicle and a vehicle speed of the towing vehicle; checking, as a first braking criterion, whether there is braking wheel slip at the driven axle of the towing vehicle without the operation of a wheel brake of the driven axle of the towing vehicle by carrying out a comparison of the vehicle speed of the towing vehicle with a wheel speed determined from the wheel revolution rates of the driven axle; checking, as an exclusion criterion, whether one or more exclusion conditions are met and actuating, in response to the first braking criterion being met and the exclusion criterion not being met, at least one wheel brake of the trailer vehicle such that the at least one wheel brake of the trailer vehicle is not actuated when the exclusion condition is met, wherein the one or more exclusion conditions include a first exclusion condition being a presence of driving uphill and a second exclusion condition being a presence of active driving stability control on the towing vehicle, and wherein the exclusion criterion is met if at least one of driving uphill and active driving stability control on the towing vehicle is present. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A towing vehicle brake control device for a towing vehicle of a vehicle combination including the towing vehicle and a trailer vehicle, the towing vehicle brake control device comprising:
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a receiver configured to receive wheel revolution rate signals of wheels of axles of the towing vehicle; and a data connection to a trailer brake control device; wherein the towing vehicle brake control device is configured to; check, as a first braking criterion, whether there is braking wheel slip at a driven axle of the towing vehicle without operation of a wheel brake of the driven axle by carrying out a comparison of the vehicle speed of the towing vehicle with a wheel speed determined from the wheel revolution rates of the driven axle, check, as an exclusion criterion, whether one or more exclusion conditions are met and output, in response to the first braking criterion being met and the exclusion criterion not being met, a brake demand signal in order to output at least one trailer brake control signal to at least one wheel brake of the trailer vehicle for braking the trailer vehicle such that the at least one wheel brake of the trailer vehicle is not actuated when the exclusion condition is met, wherein the one or more exclusion conditions include a first exclusion condition being a presence of driving uphill and a second exclusion condition being a presence of active driving stability control on the towing vehicle, and wherein the exclusion criterion is met if at least one of driving uphill and active driving stability control on the towing vehicle is present.
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8. A vehicle combination with a towing vehicle and a trailer vehicle, wherein the towing vehicle comprises:
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a towing vehicle brake control device comprising; a receiver configured to receive wheel revolution rate signals of wheels of axles of the towing vehicle; and a data connection to a trailer brake control device; wherein the towing vehicle brake control device is configured to; check, as a first braking criterion, whether there is braking wheel slip at a driven axle of the towing vehicle without operation of a wheel brake of the driven axle by carrying out a comparison of the vehicle speed of the towing vehicle with a wheel speed determined from the wheel revolution rates of the driven axle, check, as an exclusion criterion, whether one or more exclusion conditions are met, and output, in response to the first braking criterion being met and the exclusion criterion not being met, a brake demand signal in order to output at least one trailer brake control signal to at least one wheel brake of the trailer vehicle for braking the trailer vehicle such that the at least one wheel brake of the trailer vehicle is not actuated when the exclusion condition is met, wherein the one or more exclusion conditions include a first exclusion condition being a presence of driving uphill and a second exclusion condition being a presence of active driving stability control on the towing vehicle, and wherein the exclusion criterion is met if at least one of driving uphill and active driving stability control on the towing vehicle is present.
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Specification