Method and device for determining braking-related actual values of a rail vehicle for carrying out a deceleration-controlled braking with a central sensor system
AssigneeKnorr-Bremse Systeme FüR Schienenfahrzeuge GmbH
InventorsChristoph Tomberger, Ulf Friesen
Life of this patent
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Abstract
A method and a device for determining braking-related actual values of a train assembly including multiple carriages for carrying out a deceleration-controlled braking of the train assembly, in which the longitudinal deceleration and the longitudinal slope are considered to be actual values, from which an adjustment value balancing the control deviation is determined for a control element of the brake by a deceleration controller/deceleration force controller according to a predefined setpoint value of a desired braking deceleration.
Claims10
A method for determining braking-related actual values of a train assembly including of a plurality of carriages for carrying out deceleration-controlled braking of the train assembly, the method comprising:
- capturing or calculating braking-related actual values for the entire train assembly by a central measured value capture unit positioned only in a frontmost, only a rearmost, or only the front and rearmost train part and having a plurality of sensors;
- and
- determining a manipulated variable for compensating for system deviation for an actuator of a brake by a deceleration controller/deceleration force controller in accordance with a predefined setpoint value of a desired braking deceleration, wherein the determination is based on longitudinal deceleration (aL) and longitudinal inclination (αL) as actual values
- wherein the manipulated variable is further determined based on a length of the train (LZ) as an additional centrally determined actual value by the deceleration controller/deceleration force controller such that calculation of the manipulated variable for compensating for the system deviation includes a braking requirement that is different depending on the train length based on a rise profile resulting from the determined longitudinal inclination (αL) in the frontmost train part along the train length (LZ), and
- wherein the inclination-based longitudinal deceleration (aL) is determined by the central measured value capture unit separately for each carriage of the train assembly based on a stored train model, a longitudinal inclination, and a measured speed.
A device for determining braking-related actual values of a train assembly including plurality of carriages, for carrying out deceleration-controlled braking of the train assembly, the device comprising:
- a deceleration controller/deceleration force controller that outputs a manipulated variable compensating for the system deviation for an actuator of the brake in accordance with a predefined setpoint value (aS) of a desired braking deceleration, wherein the manipulated variable is determined based on the longitudinal deceleration (aL) and longitudinal inclination (αL);
- and
- a central measured value capture unit positioned only in a frontmost, only a rearmost, or only the front and rearmost train part and having a plurality of sensors configured to capture and/or calculate the braking-related actual values for the entire train assembly,
- wherein the deceleration controller/deceleration force controller takes into account length of the train (LZ) as an additional centrally determined actual value such that the manipulated variable for compensating for the system deviation is calculated based on a braking requirement that is different depending on the train length based on a rise profile resulting from the determined longitudinal inclination (αL) in the frontmost train part along the train length (LZ), and
- wherein the inclination-based longitudinal deceleration (aL) is determined by the central measured value capture unit separately for each carriage of the train assembly based on a stored train model, a longitudinal inclination, and a measured speed.
A non-transitory computer readable medium with program code for carrying out a method for determining braking-related actual values of a train assembly including a plurality of carriages for carrying out deceleration-controlled braking of the train assembly, when the computer program product runs on an electronic device, the method comprising:
- capturing and/or calculating braking-related actual values for the entire train assembly by a central measured value capture unit positioned only in a frontmost, only a rearmost, or only the front and rearmost train part and having a plurality of sensors;
- and
- determining a manipulated variable for compensating for system deviation for an actuator of a brake by a deceleration controller/deceleration force controller in accordance with a predefined setpoint value of a desired braking deceleration, wherein the determination is based on longitudinal deceleration (aL) and longitudinal inclination (αL) as actual values,
- wherein the manipulated variable is further determined based on a length of the train (LZ) as an additional centrally determined actual value by the deceleration controller/deceleration force controller such that calculation of the manipulated variable for compensating for the system deviation includes a braking requirement that is different depending on the train length based on a rise profile resulting from the determined longitudinal inclination (αL) in the frontmost train part along the train length (LZ), and
- wherein the inclination-based longitudinal deceleration (aL) is determined by the central measured value capture unit separately for each carriage of the train assembly based on a stored train model, a longitudinal inclination, and a measured speed.
Dependencies are inferred from the claim text.