IP Library Granted Patent US 8,112,212
Granted Patent B2
US 8,112,212 · App. 12/197,533 · Granted Feb 7, 2012

Vehicle brake control based on learned vehicle mass

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Quick Facts
Patent No.
US 8,112,212
App. No.
12/197,533
Granted
Feb 7, 2012
Kind
B2
Abstract

A control system for a vehicle brake comprises a compensation module that determines a compensated brake value based on a vehicle mass and at least one of a pedal force and a pedal displacement, and a brake control module that selectively adjusts a fluid pressure supplied to the vehicle brake based on the compensated brake value. The compensation module determines the compensated brake value based on a comparison of the vehicle mass and a predetermined mass value. A related method for controlling the vehicle brake based on vehicle mass is also provided.

Claims (35)

1. A control system for a vehicle brake, comprising:

a compensation module that determines a compensated brake value based on a vehicle mass and at least one of a pedal force and a pedal displacement; and

a brake control module that selectively adjusts fluid pressure supplied to said vehicle brake based on said compensated brake value,

wherein said compensation module determines said compensated brake value based on a comparison of said vehicle mass and a predetermined mass value, and

wherein when said vehicle mass is greater than said predetermined mass value, said brake control module adjusts said fluid pressure in proportion to a quotient of said vehicle mass and said predetermined mass value.

2. A control system for a vehicle brake, comprising:

a compensation module that determines a compensated brake value based on a vehicle mass and at least one of a pedal force and a pedal displacement; and

a brake control module that selectively adjusts fluid pressure supplied to said vehicle brake based on said compensated brake value,

wherein said compensation module determines said compensated brake value based on a negative drive torque produced by a powerplant.

3. A control system for a vehicle brake, comprising:

a compensation module that determines a compensated brake value based on a vehicle mass and at least one of a pedal force and a pedal displacement;

a brake control module that selectively adjusts fluid pressure supplied to said vehicle brake based on said compensated brake value; and

an actuator that selectively supplies an actuation force to a master cylinder that generates said fluid pressure in response to said actuation force, wherein said brake control module adjusts said actuation force.

4. A control system for a vehicle brake, comprising:

a compensation module that determines a compensated brake value based on a vehicle mass and at least one of a pedal force and a pedal displacement;

a brake control module that selectively adjusts fluid pressure supplied to said vehicle brake based on said compensated brake value;

a brake pedal mechanically coupled to a master cylinder, said brake pedal selectively operable to supply said pedal force to said master cylinder; and

an actuator that supplies an actuation force to said master cylinder, wherein said master cylinder generates said fluid pressure in response to said pedal force and said actuation force, wherein said brake control module adjusts said actuation force.

5. A method for controlling a vehicle brake, comprising:

determining a compensated brake value based on a vehicle mass and at least one of a pedal force and a pedal displacement; and

selectively adjusting a fluid pressure supplied to said vehicle brake based on said compensated brake value,

wherein said determining said compensated brake value includes comparing said vehicle mass and a predetermined mass value, and wherein when said vehicle mass is greater than said predetermined mass value, said selectively adjusting said fluid pressure includes increasing said fluid pressure in proportion to a quotient of said vehicle mass and said predetermined mass value.

6. A method for controlling a vehicle brake, comprising:

determining a compensated brake value based on a vehicle mass and at least one of a pedal force and a pedal displacement; and

selectively adjusting a fluid pressure supplied to said vehicle brake based on said compensated brake value,

wherein said determining said compensated brake value includes determining said compensated brake value based on a negative drive torque produced by a powerplant.

7. A method for controlling a vehicle brake, comprising:

determining a compensated brake value based on a vehicle mass and at least one of a pedal force and a pedal displacement;

selectively adjusting a fluid pressure supplied to said vehicle brake based on said compensated brake value; and

providing an actuator that selectively supplies an actuation force to a master cylinder that generates said fluid pressure in response to said actuation force, wherein said selectively adjusting said fluid pressure includes adjusting said actuation force.

8. A method for controlling a vehicle brake, comprising:

determining a compensated brake value based on a vehicle mass and at least one of a pedal force and a pedal displacement;

selectively adjusting a fluid pressure supplied to said vehicle brake based on said compensated brake value;

providing a brake pedal mechanically coupled to a master cylinder, said brake pedal selectively operable to supply said pedal force to said master cylinder; and

providing an actuator that supplies an actuation force to said master cylinder, wherein said master cylinder generates said fluid pressure in response to said pedal force and said actuation force, wherein said selectively adjusting said fluid pressure includes adjusting said actuation force.

Assignments (12)
RELEASE OF SECURITY INTEREST Recorded Nov 7, 2014
From: WILMINGTON TRUST COMPANY
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 034384/0758 →
CHANGE OF NAME Recorded Feb 10, 2011
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 025781/0211 →
SECURITY AGREEMENT Recorded Nov 8, 2010
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: WILMINGTON TRUST COMPANY
Reel/Frame 025324/0475 →
RELEASE OF SECURITY INTEREST Recorded Nov 5, 2010
From: UAW RETIREE MEDICAL BENEFITS TRUST
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 025315/0046 →
RELEASE OF SECURITY INTEREST Recorded Nov 4, 2010
From: UNITED STATES DEPARTMENT OF THE TREASURY
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 025245/0909 →
SECURITY AGREEMENT Recorded Aug 28, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UAW RETIREE MEDICAL BENEFITS TRUST
Reel/Frame 023162/0237 →
SECURITY AGREEMENT Recorded Aug 27, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UNITED STATES DEPARTMENT OF THE TREASURY
Reel/Frame 023156/0313 →
RELEASE OF SECURITY INTEREST Recorded Aug 21, 2009
From: UNITED STATES DEPARTMENT OF THE TREASURY
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 023126/0914 →
RELEASE OF SECURITY INTEREST Recorded Aug 21, 2009
From: CITICORP USA, INC. AS AGENT FOR BANK PRIORITY SECURED PARTIES; CITICORP USA, INC. AS AGENT FOR HEDGE PRIORITY SECURED PARTIES
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 023155/0769 →
SECURITY AGREEMENT Recorded Apr 16, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: CITICORP USA, INC. AS AGENT FOR BANK PRIORITY SECURED PARTIES; CITICORP USA, INC. AS AGENT FOR HEDGE PRIORITY SECURED PARTIES
Reel/Frame 022554/0538 →
SECURITY AGREEMENT Recorded Feb 3, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UNITED STATES DEPARTMENT OF THE TREASURY
Reel/Frame 022201/0363 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 25, 2008
From: BAUERLE, PAUL A.
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 021435/0809 →