Antilock electro-hydraulic hybrid brake system and method

• US 20040239180A1
• Filed: 05/27/2003
• Published: 12/02/2004
• Est. Priority Date: 05/27/2003
• Status: Abandoned Application

• Current Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Original Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Inventors: Foust, Jeff A.
• Application Number:
  US10/445,583
• Publication Number:
  US 20040239180A1
• Time in Patent Office: Days
• US Class Current: 303/152
• CPC Class Codes: B60T 2201/06 Hill holder; Start aid systems on inclined road
• CPC Class Codes: B60T 8/1755 Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve road vehicle drive control systems for control of driving stability otherwise than by controlling a particular sub-unit B60W30/02
• CPC Class Codes: B60T 8/267 for hybrid systems with different kind of brakes on different axles
• CPC Class Codes: B60T 8/344 Hydraulic systems

Abstract

For a motor vehicle, a brake system, an antilock electro-hydraulic hybrid brake system, and a method of braking. The brake system includes at least one first wheel assembly including a non-antilock brake apparatus with a first actuator, and at least one wheel assembly including an antilock brake apparatus with a second actuator. A received brake signal activates at least one of the first and second actuators to provide a braking force for the vehicle. A front wheel set may include the first wheel assembly with the first actuator being hydraulic. A rear wheel set may include the second wheel assembly with the second actuator being electric. The method includes receiving a brake signal, applying a non-antilock brake force to at least one wheel assembly based on the received brake signal, and applying an antilock brake force to at least one wheel assembly based on the received brake signal.

Claims

1. A brake system for a motor vehicle, the brake system comprising:

at least one wheel assembly comprising a non-antilock brake apparatus including a first actuator; and

at least one wheel assembly comprising an antilock brake apparatus including a second actuator;

wherein a received brake signal activates at least one of the first and second actuators to provide a braking force for the vehicle.

2. The system of claim 1 wherein the first actuator comprises a hydraulic actuator.

3. The system of claim 1 wherein the second actuator comprises an electric or an electro-hydraulic actuator.

4. The system of claim 1 wherein the wheel assembly comprising the non-antilock brake apparatus comprises a front wheel assembly.

5. The system of claim 1 wherein the wheel assembly comprising the antilock brake apparatus comprises a rear wheel assembly.

6. The system of claim 1 further comprising an electronic control unit for modulating an antilock brake function, the electronic control unit operably attached to the wheel assembly comprising the antilock brake apparatus.

7. The system of claim 1 wherein the electronic control unit provides at least one advanced brake function.

8. An antilock electro-hydraulic hybrid brake system for a motor vehicle, the brake system comprising:

a front wheel set including at least one wheel assembly, said wheel assembly comprising a non-antilocking brake apparatus including a hydraulic actuator; and

a rear wheel set including at least one wheel assembly, said wheel assembly comprising an antilock brake apparatus including an electric actuator;

wherein a received brake signal activates the hydraulic actuator and the electric actuator to provide a braking force for the vehicle.

9. The system of claim 8 further comprising an electronic control unit for modulating an antilock brake function, the electronic control unit operably attached to the wheel assembly comprising the antilock brake apparatus.

10. The system of claim 8 wherein the electronic control unit provides at least one advanced brake function.

11. A method of braking a motor vehicle, the method comprising:

receiving a brake signal;

applying a non-antilock brake force to at least one wheel assembly based on the received brake signal; and

applying an antilock brake force to at least one wheel assembly based on the received brake signal.

12. The method of claim 11 wherein receiving the brake signal comprises receiving a brake pedal input and a master cylinder input.

13. The method of claim 11 wherein the non-antilock brake force is applied to at least one front wheel assembly.

14. The method of claim 11 wherein the antilock brake force is applied to at least one rear wheel assembly.

15. The method of claim 11 further comprising proportioning the applied non-antilock and antilock brake forces.

16. The method of claim 11 further comprising providing at least one advanced brake function.

17. A computer usable medium including a program for braking a motor vehicle, the computer usable medium comprising:

computer usable program code for receiving a brake signal;

computer usable program code for applying a non-antilocking brake force to at least one wheel assembly in proportion to the brake signal; and

computer usable program code for applying an antilocking brake force to at least one wheel assembly in proportion to the brake signal.

18. The method of claim 17 further comprising computer usable program code for proportioning the applied non-antilock and antilock brake forces.

19. The method of claim 17 further comprising computer usable program code for providing at least one advanced brake function.