Apparatus for the measurement and/or regulation of a braking force and/or of a braking torque
First Claim
1. An apparatus for performing at least one of measuring and regulating a braking force produced by at least one of at least two brake units, which braking force of each of said at least two brake units is transmitted to a brakable element for decelerating such brakable element, said apparatus comprising:
- (a) a deceleration sensor mounted on said brakable element to provide an output signal value that is representative of a measured deceleration value of said brakable element;
(b) at least one mass sensor mounted on said brakable element to provide an output signal value that is representative of a measured mass value of said brakable element;
(c) at least one temperature-dependent measuring element mounted on each brake unit to provide an output signal value that is representative of a measured temperature value of a brake unit on which said at least one temperature-dependent measuring element is mounted;
(d) an evaluation means connected to receive said output signal values of said deceleration sensor and said at least one mass sensor and said at least one temperature-dependent element;
(e) said evaluation means having parameters stored therein of each brake unit for determining a temperature-development of each brake unit during activation of each such brake unit;
(f) said evaluation means having a capability of determining changes of temperature signal values of said brake units having occurred in a time interval at least during an activation of said brake units;
(g) said evaluation means being capable of determining a medium deceleration value in said time interval; and
(h) said evaluation means from said changes of said temperature signal values of said brake units and from said output signal value of said mass sensor and from said medium deceleration value generates and transmits an output signal value representative of a medium braking force produced by said at least one brake unit during said time interval.
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Accused Products
Abstract
An apparatus which measures and regulates the braking torque of a brake unit in long-term operational use. The brake unit includes both a brakable element and the braking device. An output signal from at least one temperature-dependent measuring element, located on or in one of the brakable elements and the braking device, is supplied to an evaluation apparatus. The evaluation apparatus determines, from the current value of the output signal of the temperature-measuring element, a present braking torque, and adjusts such torque when desirable.
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Citations
29 Claims
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1. An apparatus for performing at least one of measuring and regulating a braking force produced by at least one of at least two brake units, which braking force of each of said at least two brake units is transmitted to a brakable element for decelerating such brakable element, said apparatus comprising:
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(a) a deceleration sensor mounted on said brakable element to provide an output signal value that is representative of a measured deceleration value of said brakable element; (b) at least one mass sensor mounted on said brakable element to provide an output signal value that is representative of a measured mass value of said brakable element; (c) at least one temperature-dependent measuring element mounted on each brake unit to provide an output signal value that is representative of a measured temperature value of a brake unit on which said at least one temperature-dependent measuring element is mounted; (d) an evaluation means connected to receive said output signal values of said deceleration sensor and said at least one mass sensor and said at least one temperature-dependent element; (e) said evaluation means having parameters stored therein of each brake unit for determining a temperature-development of each brake unit during activation of each such brake unit; (f) said evaluation means having a capability of determining changes of temperature signal values of said brake units having occurred in a time interval at least during an activation of said brake units; (g) said evaluation means being capable of determining a medium deceleration value in said time interval; and (h) said evaluation means from said changes of said temperature signal values of said brake units and from said output signal value of said mass sensor and from said medium deceleration value generates and transmits an output signal value representative of a medium braking force produced by said at least one brake unit during said time interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 20, 21, 22)
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- 15. An apparatus, according to clam 13, wherein said evaluation means further has stored therein a dynamic wheel radius and wherein said evaluation means by means of said dynamic wheel radius transforms said output signal value representative of a medium braking force into an output signal value representative of a medium braking torque.
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23. A method of at least one of measuring and regulating a braking force produced by at least one of at least two brake units, which braking force of each of said at least two brake units is transmitted to a brakable element for decelerating such brakable element, said method comprising the steps of:
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(a) generating an output signal value that is representative of a measured deceleration value of said brakable element; (b) generating an output signal value that is representative of a measured mass value of said brakable element; (c) generating an output signal value that is representative of a measured temperature value of a brake unit; (d) transmitting said output signal values generated in steps (a) and (b) and (c) to an evaluation means having stored therein parameters for determining a temperature development of each brake unit during activation of such brake unit; (e) determining changes of said measured temperature value of said brake unit as they occur in a time interval at least during an activation of said brake unit; (f) determining a medium deceleration value in said time interval; and (g) generating and transmitting an output signal value from said evaluation means that is representative of a medium braking force produced by said at least one brake unit during said time interval as determined in said evaluation means from said changes of said temperature signal values of said brake units and from said output signal value of said mass sensor and from said medium deceleration value. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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Specification