IP Library Granted Patent US 12668218
Granted Patent B2
US 12668218 · App. 18/414,905 · Granted Jun 30, 2026

Control system and method for controlling an activation state of a braking-torque assistance system for reducing intake of braking energy in a service-brake system of a vehicle

Inventors: Thomas Wilwers (Prum, DE); Thomas Svensson (Leichlingen, DE); Eugen Weber (Cologne, DE); Lowell Kubik (Sterling Heights, MI)
Assignee: Ford Global Technologies, LLC
B60T8/171B60T8/3275B60T8/52B60T17/22
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Quick Facts
Patent No.
US 12668218
App. No.
18/414,905
Granted
Jun 30, 2026
Kind
B2
Abstract

A method for controlling an activation state of a braking-torque assistance system for reducing intake of braking energy in the service-brake system of a vehicle includes capturing and evaluating of a plurality of demand indications for a startup of the braking-torque assistance system. The method further includes starting a capture of a plurality of operating conditions of the service-brake system and evaluation of the captured plurality of operating conditions over a monitoring period responsive to the evaluation of the captured plurality of demand indications reveals a demand for the startup of the braking-torque assistance system, activating the braking-torque assistance system and checking for temperature precursor parameters of the braking-torque assistance system, and deactivating the braking-torque assistance system responsive to the temperature precursor parameters indicating a trend toward an overheating of the service-brake system.

Claims (33)

1 . A method for controlling an activation state of a braking-torque assistance system for reducing intake of braking energy in the service-brake system of a vehicle, the method comprising:

capturing and evaluating of a plurality of demand indications for a startup of the braking-torque assistance system;

starting a capture of a plurality of operating conditions of the service-brake system and evaluation of the captured plurality of operating conditions over a monitoring period responsive to the evaluation of the captured plurality of demand indications reveals a demand for the startup of the braking-torque assistance system;

activating the braking-torque assistance system and checking for temperature precursor parameters of the braking-torque assistance system; and

deactivating the braking-torque assistance system responsive to the temperature precursor parameters indicating a trend toward an overheating of the service-brake system,

wherein the temperature precursor parameters include a power input provided to the service-brake system.

2 . The method of claim 1 , wherein the temperature precursor parameters include a current speed of the vehicle and brake torque applied to the service-brake system.

3 . The method of claim 1 , wherein the temperature precursor parameters include a current wheel speed and brake torque applied to the service-brake system.

4 . The method of claim 1 , wherein the temperature precursor parameters indicate a trend toward overheating responsive to a rate of increase in a value of the temperature precursor parameters exceeds a threshold value.

5 . The method of claim 1 , wherein the temperature precursor parameters only include a power input provided to the service-brake system.

6 . A control system for controlling an activation state of a braking-torque assistance system for reducing intake of braking energy in the service-brake system of a vehicle, the control system comprising processing circuitry configured for:

capturing and evaluating of a plurality of demand indications for a startup of the braking-torque assistance system;

starting a capture of a plurality of operating conditions of the service-brake system and evaluation of the captured plurality of operating conditions over a monitoring period responsive to the evaluation of the captured plurality of demand indications reveals a demand for the startup of the braking-torque assistance system;

activating the braking-torque assistance system and checking for temperature precursor parameters of the braking-torque assistance system; and

deactivating the braking-torque assistance system responsive to the temperature precursor parameters indicating a trend toward an overheating of the service-brake system,

wherein the temperature precursor parameters include a power input provided to the service-brake system.

7 . The control system of claim 6 , wherein the temperature precursor parameters include a current speed of the vehicle and brake torque applied to the service-brake system.

8 . The control system of claim 6 , wherein the temperature precursor parameters include a current wheel speed and brake torque applied to the service-brake system.

9 . The control system of claim 6 , wherein the temperature precursor parameters indicate a trend toward overheating responsive to a rate of increase in a value of the temperature precursor parameters exceeds a threshold value.

10 . The control system of claim 6 , wherein the temperature precursor parameters only include a power input provided to the service-brake system.

11 . A vehicle comprising:

a service-brake system;

a braking-torque assistance system; and

a control system for controlling an activation state of the braking-torque assistance system for reducing intake of braking energy in the service-brake system, the control system comprising processing circuitry configured for:

capturing and evaluating of a plurality of demand indications for a startup of the braking-torque assistance system;

starting a capture of a plurality of operating conditions of the service-brake system and evaluation of the captured plurality of operating conditions over a monitoring period responsive to the evaluation of the captured plurality of demand indications reveals a demand for the startup of the braking-torque assistance system;

activating the braking-torque assistance system and checking for temperature precursor parameters of the braking-torque assistance system; and

deactivating the braking-torque assistance system responsive to the temperature precursor parameters indicating a trend toward an overheating of the service-brake system,

wherein the temperature precursor parameters include a power input provided to the service-brake system.

12 . The vehicle of claim 11 , wherein the temperature precursor parameters include a current speed of the vehicle and brake torque applied to the service-brake system.

13 . The vehicle of claim 11 , wherein the temperature precursor parameters include a current wheel speed and brake torque applied to the service-brake system.

14 . The vehicle of claim 11 , wherein the temperature precursor parameters indicate a trend toward overheating responsive to a rate of increase in a value of the temperature precursor parameters exceeds a threshold value.

15 . The vehicle of claim 11 , wherein the temperature precursor parameters only include a power input provided to the service-brake system.