-
公开(公告)号：US12049204B2
公开(公告)日：2024-07-30
申请号：US16643210
申请日：2018-08-21
发明人： Christoph Tomberger , Ulf Friesen
CPC分类号： B60T13/665 , B60T8/1705 , B60T8/171 , B60T8/172 , B60T13/662 , B60T17/228
摘要： A method and equipment determine braking-relevant actual values for a train composed of a plurality of wagons, in particular a rail vehicle, for the performance of controlled-retardation braking of the train, in which at least the longitudinal retardation is taken into account as an actual value, from which, using a retardation controller, in accordance with a predefined target value of a desired break retardation, an actuating value compensating for the control deviation is determined for an actuator of the brake, in that the longitudinal retardation is measured by a plurality of retardation sensors positioned along the train in at least two different wagons to determine the respective local longitudinal retardation, the longitudinal retardation based on the entire train then being calculated as an actual value by a central measured value detection unit.
-
公开(公告)号：US20240246521A1
公开(公告)日：2024-07-25
申请号：US18559839
申请日：2022-09-06
发明人： Rui SHI , Yifan LIANG , Meng SHI , Xiaowei CHEN , Shenyue HUANG , Nan WANG
CPC分类号： B60T13/741 , B60T13/665 , B60T17/228 , B60T2270/402
摘要： A parking brake control method for an electromechanical brake system of an urban rail vehicle includes an operation instruction mechanism, a brake control mechanism, an electromechanical actuating mechanism and an auxiliary mechanism. The operation instruction mechanism outputs a control signal to the brake control mechanism to drive the action of the electromechanical actuating mechanism so as to achieve braking application and relief of the vehicle. The auxiliary mechanism is used for a redundant power supply system of a brake system. The auxiliary mechanism further includes a zero-speed state monitoring mechanism for monitoring a zero-speed state of the vehicle and an energy storage battery mechanism for providing a backup power supply. The parking brake control method enables an urban rail vehicle using an electromechanical brake system to achieve brake application and relief in a parked state and achieve brake application and relief in a dormant state of the urban rail vehicle.
-
公开(公告)号：US12024140B2
公开(公告)日：2024-07-02
申请号：US17622789
申请日：2020-06-15
发明人： Ulf Friesen , Ralf Furtwängler , Dirk Deeken
CPC分类号： B60T13/662 , B60T13/665 , G01C25/005 , G01P15/18 , G01P21/00
摘要： Disclosed embodiments relate to a method for calibrating a coordinate system of a multi-axis deceleration sensor in a rail vehicle, including calibrating the vertical axis of the sensor to the vertical axis of the vehicle, measuring the acceleration along the longitudinal and transverse axis of the sensor during a braking process of the rail vehicle at a low speed and at a standstill over a time curve, determining an offset vector at a standstill, the offset vector consisting partly of a component in the longitudinal direction and partly of a component in the transverse direction of the sensor and representing the influence of the gravitational acceleration on the measured acceleration of the rail vehicle, and ascertaining at least one resulting acceleration vector of the coordinate system of the sensor about the vertical axis of the sensor such that the at least one resulting acceleration vector faces the vehicle longitudinal direction.
-
公开(公告)号：US20180339691A1
公开(公告)日：2018-11-29
申请号：US15606443
申请日：2017-05-26
发明人： Ryan Kepley
CPC分类号： B60T15/54 , B60T13/26 , B60T13/665 , B60T15/022 , B60T15/304 , B60T17/228 , B61H1/00
摘要： A retaining valve includes an inlet and a valve member downstream from the inlet, wherein the valve member has first, second, and third positions. A first passage through the valve member allows fluid flow through the retaining valve when the valve member is in the first position. A second passage through the valve member allows fluid flow through the retaining valve when the valve member is in the second position. A third passage through the valve member allows fluid flow through the retaining valve when the valve member is in the third position. A slide moves with respect to the valve member in response to pressure at the inlet. A spring engaged with the slide biases the slide toward the inlet. A seal located at an axial midpoint of the slide prevents flow through the third passage when pressure at the inlet is less than a predetermined pressure.
-
公开(公告)号：US20180257626A1
公开(公告)日：2018-09-13
申请号：US15754034
申请日：2017-03-07
CPC分类号： B60T15/021 , B60T13/665 , B60T17/228 , B61H13/00
摘要： A brake cylinder maintaining system includes a main valve comprising a first diaphragm, a second diaphragm, and a valve member, with the first diaphragm having a reference pressure on one side of the first diaphragm and a brake cylinder pressure on an opposite side of the first diaphragm. The second diaphragm having a brake cylinder pressure on one side of the second diaphragm with the first diaphragm configured to move between a first position and a second position based on a differential between the reference pressure and the brake cylinder pressure. The valve member is configured to place a brake cylinder in fluid communication with a brake pipe when the first and second diaphragm are each in the second position and configured to isolate a brake cylinder from a brake pipe when the first diaphragm or the second diaphragm are in the first position.
-
公开(公告)号：US20180257623A1
公开(公告)日：2018-09-13
申请号：US15779441
申请日：2016-11-21
CPC分类号： B60T13/665 , B60L7/26 , B60T7/126 , B60T8/1705 , B60T8/1893 , B60T17/228
摘要： The invention relates to a brake system of a rail vehicle having at least one pneumatic brake actuator, a pneumatic braking device for generating a brake pressure, an electro-pneumatic braking device for generating a brake pressure, and a controller. In the event of rapid, forcible, or emergency braking, the pneumatic braking device or the electro-pneumatic braking device provides a basic brake pressure, and the brake pressure is changed by the electro-pneumatic braking device, starting from the basic brake pressure provided, depending in particular on a load and/or a speed.
-
公开(公告)号：US20180170413A1
公开(公告)日：2018-06-21
申请号：US15381621
申请日：2016-12-16
发明人： Eric C. Wright , John M. Reynolds
IPC分类号： B61L15/00
CPC分类号： B61L15/0072 , B60T13/665 , B60T15/14 , B60T17/228 , B61L15/009
摘要： An intelligent locomotive brake control system which selects and optimizes use of dynamic, independent, and automatic brakes on the locomotive to assure intended brake power, to minimize in-train forces, minimize brake component wear, and to automate standard train brake protocol. The system may be programmed to alter an automatic brake application commanded by a train driver to omit or reduce the amount of the automatic brake application in favor of a dynamic brake application, and independent brake application, or combination thereof.
-
公开(公告)号：US20180170329A1
公开(公告)日：2018-06-21
申请号：US15739563
申请日：2016-06-27
CPC分类号： B60T8/1705 , B60T8/58 , B60T13/665 , B60T17/228 , B60T2240/07 , B61H5/00 , B61H13/20 , B61H13/34
摘要： A rail vehicle braking system includes at least one disk brake associated with a wheel or a wheel set, wherein the disk brake includes at least one brake disk, at least one brake lining which engages with the brake disk, at least one application device exerting an application force on the at least one brake lining during a braking operation, and a control device for controlling the application device, wherein the control device is coupled to a determination unit for determining a current wheel diameter of the wheel or of the wheel set, wherein the control unit is configured such that, when a predetermined application force is actuated during braking operation, a value of the current wheel diameter detected by the determination unit is taken into account.
-
公开(公告)号：US09963126B1
公开(公告)日：2018-05-08
申请号：US15438055
申请日：2017-02-21
发明人： Eric C. Wright
CPC分类号： B60T7/128 , B60T8/1705 , B60T8/172 , B60T8/245 , B60T13/662 , B60T13/665 , B60T17/228
摘要： A computer controlled locomotive brake (CCB) configured for setting and releasing the automatic parking brakes of the railcars of a train. The CCB may initially recharge the brake pipe to a pressure slightly less than the parking brake unlatch pressure. The CCB may then continue charging to this level until the brake pipe flow, measured at the CCB on the controlling locomotive and the brake pipe pressure on the last car, as measured by an end of train device, indicate that the pressure in the braking system reservoirs are substantively equal to the brake pipe pressure. Once the reservoirs are substantively charged, the CCB may complete the brake release and recharge by recharging the brake pipe pressure to its final charge so that all parking brakes are released and the train has sufficient braking system recharge to safely control movement of the train.
-
公开(公告)号：US09892217B2
公开(公告)日：2018-02-13
申请号：US14684454
申请日：2015-04-13
发明人： Chul-Goo Kang , Nam Jin Lee , Dong-Chan Lee
CPC分类号： G06F17/5009 , B60T13/665 , B60T17/228 , G06F17/5095 , G06F2217/86
摘要： Disclosed is a brake HILS system for a railway vehicle, comprising: a user terminal that receives values relating to braking conditions of a railway vehicle through a user interface and monitors simulation results; a pneumatic brake that includes an electronic control unit, a brake operation unit, a wheelset, a brake caliper, and a wheel slide protection valve and produces pneumatic pressure and transmits a braking force to the wheelset in accordance with the braking conditions from the user terminal; a load cell that is disposed on a wheel or a disc and measures a braking force from the pneumatic pressure; and a modeling unit that simulates the running and braking dynamic characteristics of a railway vehicle in real-time using mathematical models.
-
-
-
-
-
-
-
-
-
搜索结果
1309 条记录 (耗时 0.021 秒)
