Brake regulating system for stabilizing the motion of a commercial vehicle

• US 20040080209A1
• Filed: 12/16/2003
• Published: 04/29/2004
• Est. Priority Date: 12/29/2000
• Status: Active Grant

• Current Assignee: Knorr-Bremse Systeme Fur Nutzfahrzeuge GMBH (Estate of Heinz Hermann Thiele)
• Original Assignee: Robert Bosch GmbH
• Inventors: Hecker, Falk, Schramm, Herbert, Jundt, Oliver, Leimbach, Klaus-Dieter
• Granted Patent: US 7,562,946 B2
• Time in Patent Office: Days
• US Class Current: 303/146
• CPC Class Codes: B60T 8/1708 for lorries or tractor-trailer combinations
• 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

Abstract

A brake regulating system (1, 1′) particularly suitable for stabilizing the motion of a commercial vehicle is described, in which a control unit (12) outputs, as a function of a number of input variables, a predefined manipulated variable for the brake pressure of each wheel (2, 4, 6, 8) of a commercial vehicle (10) and/or a predefined manipulated variable for an output variable of the drive engine. For detecting the input variables, the input of the control unit (12) is connected to a steering angle sensor (70) for detecting a steering angle predetermined by the driver, to a sensor system for determining the yaw rate of the commercial vehicle (10), and to a first acceleration sensor (76) for detecting the transverse acceleration of the commercial vehicle (10).

Claims

1. A brake regulating system (1, 1′

) for stabilizing the motion of a commercial vehicle (10), in which a control unit (12) outputs, as a function of a number of input variables, a predefined manipulated variable for the brake pressure of each wheel (2, 4, 6, 8) of the commercial vehicle (10) and/or a predefined manipulated variable for an output variable of the drive engine, the input of the control unit being connected, for detecting the input variables, to a steering angle sensor (70) for detecting a steering angle predetermined by the driver, to a sensor system for determining the yaw rate of the commercial vehicle (10), and to a first acceleration sensor (76) for detecting the transverse acceleration of the commercial vehicle (10).

2. The brake regulating system (1, 1′

) as recited in claim 1, wherein its sensor system for determining the yaw rate of the commercial vehicle (10) includes a yaw rate sensor (74).

3. The brake regulating system (1, 1′

) as recited in claim 1, wherein its sensor system for determining the yaw rate of the commercial vehicle (10) includes a second acceleration sensor (80) for detecting the transverse acceleration of the commercial vehicle (10), the second acceleration sensor (80) being situated at an offset to the first acceleration sensor (76) viewed in the longitudinal direction (82) of the commercial vehicle (10).

4. The brake regulating system (1, 1′

) as recited in one of claims 1 through 3,

wherein the input of the control unit (12) is connected to a articulation angle sensor (88) for detecting the articulation angle (ψ

) between the longitudinal direction (82) of the commercial vehicle (10) and the longitudinal axis (84) of a trailer connected thereto.

5. The brake regulating system (1, 1′

) as recited in one of claims 1 through 3,

wherein the input of the control unit (12) is connected to a second sensor system for determining the yaw rate of a trailer connected to the commercial vehicle (10).

6. The brake regulating system (1, 1′

) as recited in one of claims 1 through 5,

wherein the input of the control unit (12) is connected to a roll angle sensor (78) for detecting the roll angle of the commercial vehicle (10).

7. The brake regulating system (1, 1′

) as recited in one of claims 1 through 5,

wherein the input of the control unit (12) is connected to a roll velocity sensor (100) for detecting the angular velocity between the vehicle body and a vehicle axis.