Patent ID: 11970169
Assignee: ZF CV SYSTEMS EUROPE BV
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 1:
2. An antilock control method for a braking system of a vehicle, the antilock control method comprising the following steps upon input of a brake request signal (S1):
outputting a brake control signal (S2);
building up a brake pressure (pb) via a braking medium at a wheel brake of a vehicle wheel (St1, t0);
measuring a wheel speed (n) of the vehicle wheel to be braked (St3);
determining at least one of the following:
i) a wheel slip (s) of the wheel; and,
ii) wheel circumferential velocity (v2) of the vehicle wheel; and,

upon satisfying a first traction criterion (K1),
i) activating a wheel drive unit; and,
ii) applying a wheel drive torque (M2) to the vehicle wheel to increase the wheel circumferential velocity (v2) and to reduce the wheel slip (s) until a second traction criterion (K2) is satisfied;

wherein a brake force (FB1) introduced in a wheel brake is still controlled as a function of the wheel slip (s);
wherein, upon satisfying the first traction criterion (K1), the brake pressure (pb) is released; and,
upon satisfying the second traction criterion (K2), the brake pressure (pb) is increased again.