Method and device for electronically controlling the brake system of a vehicle
AssigneeRobert Bosch GmbH
InventorWerner Stumpe
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Abstract
A method and a device for electronically controlling or adjusting a brake system of a vehicle is proposed, in which brake system the characteristic braking curve of the trailer is adapted to a prescribed characteristic braking curve of the towing vehicle, in order to minimize the longitudinal forces between a towing vehicle and a trailer during a braking process, in such a way that the braking of the entire road train takes place in accordance with the prescribed characteristic braking curve of the towing vehicle.
Claims14
Method for braking a towing vehicle and a trailer towed by said towing vehicle, said method comprising:
- generating a brake signal (e) for said towing vehicle in response to a driver's action,
- generating a brake signal (eTr) for said trailer in dependence on said brake signal (e) for said towing vehicle;
- generating a prescribed deceleration (Zdes) for said towing vehicle in dependence on said brake signal (e) for said towing vehicle,
- generating an actual deceleration (Zact) for the whole vehicle (towing vehicle and trailer),
- generating a correction value K for the brake signal (eTr) for the trailer during braking in dependence on said prescribed deceleration (Zdes) and the actual deceleration (Zact),
- correcting the brake signal (eTr) for the trailer during braking by the correction value K, whereby said actual deceleration (Zact) substantially equals to said prescribed deceleration (Zdes),
- applying brake pressure at the towing vehicle and the trailer based on the respective brake signals.
Apparatus for braking a towing vehicle and a trailer towed by said towing vehicle, said apparatus comprising
- means for generating a brake signal (e) for said towing vehicle and a brake signal (eTr) for said trailer in dependence on a driver's brake application,
- means for generating a prescribed deceleration (Zdes) for said towing vehicle in dependence on said braking signal (e) for the towing vehicle,
- means for determining an actual deceleration (Zact) for the whole vehicle (towing vehicle and trailer),
- means for generating a correction value (K) for the brake signal (eTr) for the trailer, whereby said actual deceleration (Zact) substantially equals said prescribed deceleration (Zdes), and
- means for operating the brakes at the towing vehicle and the trailer in response to said signals (e) and (eTr).
Dependencies are inferred from the claim text.