CN108749583B - Adaptive dynamic resistance braking system - Google Patents
Adaptive dynamic resistance braking system Download PDFInfo
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- CN108749583B CN108749583B CN201810417865.6A CN201810417865A CN108749583B CN 108749583 B CN108749583 B CN 108749583B CN 201810417865 A CN201810417865 A CN 201810417865A CN 108749583 B CN108749583 B CN 108749583B
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- 230000003044 adaptive effect Effects 0.000 title claims description 5
- 238000010521 absorption reaction Methods 0.000 claims abstract description 32
- 230000003137 locomotive effect Effects 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 230000008859 change Effects 0.000 claims description 3
- 230000005284 excitation Effects 0.000 claims description 3
- 239000008236 heating water Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000012782 phase change material Substances 0.000 claims description 3
- 238000003746 solid phase reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/02—Dynamic electric resistor braking
- B60L7/08—Controlling the braking effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Braking Arrangements (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention belongs to the field of resistance brakes, and particularly relates to a self-adaptive dynamic resistance braking system which comprises a first telescopic rod, a second telescopic rod, a sliding rheostat, a heat energy absorption device, a current transformer, a controller and the like. The dynamic resistance braking system controls the magnitude of current by adjusting the resistance value of the braking resistor, so that the stable braking effect on the locomotive is achieved, and meanwhile, the heat energy absorption device stretches into and retracts to the corresponding number according to the adjustment of the resistance value, so that the effects of good heat dissipation and full heat energy utilization are achieved.
Description
Technical Field
The invention belongs to the field of resistance brakes, and particularly relates to a self-adaptive dynamic resistance braking system.
Background
Resistive brakes are braking energy dissipation devices commonly used in large power locomotives.
A main transmission system circuit of a dumper, a patent product of Guangzhou electric locomotive Co., Ltd, introduces a brake resistor connected in series with a chopper to form a high-speed brake unit (refer to patent document CN 203864460U).
The vehicle auxiliary brake device of the patent product of the china dense steam group jinan power limited company is provided with magnetorheological damping devices on half shafts on the left side and the right side of a drive axle, and the device provides required auxiliary damping torque for a vehicle, so that the brake performance of the whole brake system can be better improved (refer to patent document CN 203267801U).
Patent products of west-andong-tai-electronics ceramic limited company are used for an energy absorption resistor of an electric locomotive brake system, and have a structure in which zinc oxide ceramic linear resistance sheets are used as resistance core bodies, and aluminum alloy radiators (including end radiators and intermediate radiators) are arranged between the zinc oxide ceramic linear resistance sheets (refer to patent document CN 102779600B).
The configuration of the dynamic braking grill unit of the locomotive, a proprietary product of general electric company, prevents or relieves snow or ice by directing heated input and output air flows (refer to patent document CN 100584653C).
Disclosure of Invention
The invention provides a dynamic resistance brake, the braking capability of which can be adjusted according to the actual working condition or other data, and the heat dissipation capability or the heat recycling mode of the brake can be correspondingly adjusted. The heat dissipation capacity of the brake is optimized, and energy is saved.
An adaptive dynamic resistance braking system architecture for use in a vehicle comprising:
the series excitation type motor is arranged outside the brake resistance box, converts electric energy into mechanical energy during driving, and converts the mechanical energy into electric energy during braking;
the water tank is arranged on the right side of the brake resistor box, is filled with water and is uniformly provided with a plurality of heat energy absorption devices;
the sliding rheostat is arranged in the braking resistance box and used for converting electric energy generated during braking into heat energy to be dissipated;
the temperature sensor is arranged in the brake resistor box and used for detecting the temperature in the brake resistor box;
the UWB ranging module is used for measuring the distance between the current vehicle and the front vehicle;
the vehicle speed sensor is used for measuring the vehicle speed of the current vehicle;
it is characterized by also comprising:
the current transformer is arranged outside the brake resistance box and used for monitoring the current value in the brake loop in real time;
the first telescopic rod is arranged in the brake resistance box and used for moving the sliding contactor in the sliding rheostat;
the sliding contactor is connected with the sliding rheostat and the first telescopic rod;
the heat energy absorption device is arranged in the water tank and is made of a solid-solid phase reaction phase change material, and the right side of the brake resistor box is provided with a hole with the same size as the cross section of the brake resistor box, and is used for absorbing heat energy emitted by the brake resistor and heating water in the water tank;
the second telescopic rod is arranged on the right side of the water tank, is connected with the heat energy absorption device and is used for driving the heat energy absorption device to extend and retract;
the controller is in signal connection with the temperature sensor, the UWB ranging module, the vehicle speed sensor, the current transformer, the first telescopic rod and the second telescopic rod;
the controller is configured to:
(1) when the distance between the two vehicles is smaller than a first threshold value, or when the distance between the two vehicles is larger than the first threshold value and the current speed of the vehicle is larger than a first speed value, the first telescopic rod moves the sliding contactor to a second resistance value, and when the resistance brake starts to brake, the second telescopic rod extends into the brake resistance box to form a second number of heat energy absorption devices; when the current transformer detects that the braking current is lower than a first current value, the first telescopic rod drives the sliding contactor to reduce the resistance value to the first resistance value, and the resistance value of the braking resistor is reduced to increase the current of a braking loop, so that the braking torque of the locomotive can be kept stable when the locomotive runs at a low speed, and meanwhile, the extending amount of the heat energy absorption device is changed from a second numerical value to a third numerical value, so that more heat energy generated by the braking resistor is absorbed; the magnitude of the brake current in the brake circuit is in inverse proportion to the magnitude of the resistance value of the slide rheostat;
(2) when the current vehicle speed is lower than a first speed value, the first telescopic rod drives the sliding contactor to move to a third resistance value, and the second telescopic rod extends into the braking resistance box to form a heat energy absorption device with a first quantity value; when the current transformer detects that the current of the brake loop is lower than a second current value, the sliding contactor moves from a third resistance value to a second resistance value, when the current of the brake loop is reduced to a first current value, the sliding contactor moves from the second resistance value to the first resistance value, and meanwhile, the extending amount of the heat energy absorption device is switched from a first numerical value to a second numerical value and then is switched to the third numerical value according to the change of the resistance value; wherein the extending amount of the heat energy absorption device is in negative correlation with the resistance value of the resistor;
(3) when braking is finished and the temperature value in the braking resistor box is lower than the first temperature value, the second telescopic rod withdraws all the heat energy absorption devices to heat water in the water tank;
the first resistance value is less than the second resistance value and less than the third resistance value;
the first quantity value is less than the second quantity value and less than the third quantity value;
the first current value < the second current value.
The invention has the beneficial effects that: in the braking process, the reduction of the speed of the locomotive can lead to the reduction of induced current, the dynamic resistance braking system controls the magnitude of the current by adjusting the resistance value of the braking resistor, so that the stable braking effect on the locomotive is achieved, and meanwhile, the heat energy absorption device stretches into and retracts to corresponding numbers according to the adjustment of the resistance value, so that the effects of good heat dissipation and full heat energy utilization are achieved.
Drawings
FIG. 1 shows a schematic diagram of an adaptive dynamic resistance braking system;
FIG. 2 shows a motor braking schematic;
fig. 3 shows a brake control flowchart.
Detailed Description
The structure of the present system and the functions performed are described in detail below with reference to the accompanying drawings.
The series excitation type motor 1 is arranged outside the brake resistor box, converts electric energy into mechanical energy during driving, and converts the mechanical energy into electric energy during braking;
a water tank 2 installed at the right side of the brake resistor box, in which a plurality of heat energy absorbing devices 10 are uniformly placed and filled with water;
the slide rheostat 3 is arranged in the brake resistance box and used for converting electric energy generated during braking into heat energy to be dissipated;
the temperature sensor 4 is arranged in the brake resistor box and used for detecting the temperature in the brake resistor box;
the UWB ranging module 5 is used for measuring the distance between the current vehicle and the front vehicle;
the vehicle speed sensor 6 is used for measuring the vehicle speed of the current vehicle;
further comprising:
the current transformer 7 is arranged outside the brake resistance box and used for monitoring the current value in the brake loop in real time;
the first telescopic rod 8 is arranged in the brake resistance box and used for moving a sliding contactor 9 in the sliding rheostat;
the sliding contactor 9 is connected with the sliding rheostat and the first telescopic rod 8;
the heat energy absorption device 10 is arranged in the water tank 2, is made of a solid-solid phase reaction phase-change material, and is provided with a hole with the same size as the cross section on the right side of the brake resistor box, and is used for absorbing heat energy emitted by the brake resistor and heating water in the water tank 2;
the second telescopic rod 11 is arranged on the right side of the water tank 2 and connected with the heat energy absorption device 10 and is used for driving the heat energy absorption device 10 to extend and retract;
the controller 12 is in signal connection with the temperature sensor 4, the UWB ranging module 5, the vehicle speed sensor 6, the current transformer 7, the first telescopic rod 8 and the second telescopic rod 11;
the controller 12 is configured to:
(1) when the distance between two vehicles is smaller than a first threshold value, or when the distance between two vehicles is larger than the first threshold value and the current speed of the vehicle is larger than a first speed value, the first telescopic rod 8 moves the sliding contactor 9 to a second resistance value, and when the resistance brake starts to brake, the second telescopic rod 11 extends into the brake resistance box to form a second number of heat energy absorption devices 10; when the current transformer 7 detects that the braking current is lower than a first current value, the first telescopic rod 8 drives the sliding contactor 9 to reduce the resistance value to the first resistance value, and the resistance value of the braking resistor is reduced to increase the current of a braking loop, so that the braking torque of the locomotive can be kept stable when the locomotive runs at a low speed, and meanwhile, the extending amount of the heat energy absorption device 10 is changed from a second numerical value to a third numerical value, so that more heat energy generated by the braking resistor is absorbed; the magnitude of the brake current in the brake circuit is in inverse proportion to the magnitude of the resistance value of the slide rheostat 3;
(2) when the current vehicle speed is lower than a first speed value, the first telescopic rod 8 drives the sliding contactor 9 to move to a third resistance value, and the second telescopic rod 11 extends into the brake resistance box to form a heat energy absorption device 10 with a first quantity value; when the current transformer 7 detects that the current of the brake loop is lower than a second current value, the sliding contactor 9 moves from a third resistance value to a second resistance value, when the current of the brake loop is reduced to a first current value, the sliding contactor 9 moves from the second resistance value to the first resistance value, and meanwhile, the extending amount of the heat energy absorption device 10 is switched from a first numerical value to a second numerical value and then to a third numerical value according to the change of the resistance value; wherein the extending amount of the heat energy absorbing device 10 is in negative correlation with the resistance value of the resistor;
(3) when braking is finished and the temperature value in the braking resistor box is lower than the first temperature value, the second telescopic rod 11 withdraws all the heat energy absorption devices 10 to heat the water in the water tank 2;
the first resistance value is less than the second resistance value and less than the third resistance value;
the first quantity value is less than the second quantity value and less than the third quantity value;
the first current value < the second current value.
It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the invention as shown in the specific embodiments without departing from the spirit or scope of the invention as broadly described. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. Likewise, the invention encompasses any combination of features, in particular of features in the patent claims, even if this feature or this combination of features is not explicitly specified in the patent claims or in the individual embodiments herein.
Claims (1)
1. An adaptive dynamic resistance braking system for a vehicle, comprising:
the series excitation type motor is arranged outside the brake resistance box, converts electric energy into mechanical energy during driving, and converts the mechanical energy into electric energy during braking;
the water tank is arranged on the right side of the brake resistor box, is filled with water and is uniformly provided with a plurality of heat energy absorption devices;
the sliding rheostat is arranged in the braking resistance box and used for converting electric energy generated during braking into heat energy to be dissipated;
the temperature sensor is arranged in the brake resistor box and used for detecting the temperature in the brake resistor box;
the UWB ranging module is used for measuring the distance between the current vehicle and the front vehicle;
the vehicle speed sensor is used for measuring the vehicle speed of the current vehicle;
it is characterized by also comprising:
the current transformer is arranged outside the brake resistance box and used for monitoring the current value in the brake loop in real time;
the first telescopic rod is arranged in the brake resistance box and used for moving the sliding contactor in the sliding rheostat;
the sliding contactor is connected with the sliding rheostat and the first telescopic rod;
the heat energy absorption device is arranged in the water tank and is made of a solid-solid phase reaction phase change material, and the right side of the brake resistor box is provided with a hole with the same size as the cross section of the brake resistor box, and is used for absorbing heat energy emitted by the brake resistor and heating water in the water tank;
the second telescopic rod is arranged on the right side of the water tank, is connected with the heat energy absorption device and is used for driving the heat energy absorption device to extend and retract;
the controller is in signal connection with the temperature sensor, the UWB ranging module, the vehicle speed sensor, the current transformer, the first telescopic rod and the second telescopic rod;
the controller is configured to:
(1) when the distance between the two vehicles is smaller than a first threshold value, or when the distance between the two vehicles is larger than the first threshold value and the current speed of the vehicle is larger than a first speed value, the first telescopic rod moves the sliding contactor to a second resistance value, and when the resistance brake starts to brake, the second telescopic rod extends into the brake resistance box to form a second number of heat energy absorption devices; when the current transformer detects that the braking current is lower than a first current value, the first telescopic rod drives the sliding contactor to reduce the resistance value to the first resistance value, and the resistance value of the braking resistor is reduced to increase the current of a braking loop, so that the braking torque of the locomotive can be kept stable when the locomotive runs at a low speed, and meanwhile, the extending amount of the heat energy absorption device is changed from a second numerical value to a third numerical value, so that more heat energy generated by the braking resistor is absorbed; the magnitude of the brake current in the brake circuit is in inverse proportion to the magnitude of the resistance value of the slide rheostat;
(2) when the current vehicle speed is lower than a first speed value, the first telescopic rod drives the sliding contactor to move to a third resistance value, and the second telescopic rod extends into the braking resistance box to form a heat energy absorption device with a first quantity value; when the current transformer detects that the current of the brake loop is lower than a second current value, the sliding contactor moves from a third resistance value to a second resistance value, when the current of the brake loop is reduced to a first current value, the sliding contactor moves from the second resistance value to the first resistance value, and meanwhile, the extending amount of the heat energy absorption device is switched from a first numerical value to a second numerical value and then is switched to the third numerical value according to the change of the resistance value; wherein the extending amount of the heat energy absorption device is in negative correlation with the resistance value of the resistor;
(3) when braking is finished and the temperature value in the braking resistor box is lower than the first temperature value, the second telescopic rod withdraws all the heat energy absorption devices to heat water in the water tank;
the first resistance value is less than the second resistance value and less than the third resistance value;
the first quantity value is less than the second quantity value and less than the third quantity value;
the first current value < the second current value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810417865.6A CN108749583B (en) | 2018-05-04 | 2018-05-04 | Adaptive dynamic resistance braking system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810417865.6A CN108749583B (en) | 2018-05-04 | 2018-05-04 | Adaptive dynamic resistance braking system |
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| CN108749583A CN108749583A (en) | 2018-11-06 |
| CN108749583B true CN108749583B (en) | 2021-04-02 |
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| CN201810417865.6A Active CN108749583B (en) | 2018-05-04 | 2018-05-04 | Adaptive dynamic resistance braking system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201890217U (en) * | 2010-11-25 | 2011-07-06 | 北汽福田汽车股份有限公司 | Brake control device and vehicle having same |
| EP3040232A1 (en) * | 2014-12-29 | 2016-07-06 | Siemens Aktiengesellschaft | Safe electrical brake for a synchronous motor |
| CN107813706A (en) * | 2017-10-25 | 2018-03-20 | 中通客车控股股份有限公司 | A kind of integral new-energy passenger efficient EBA and method |
| CN108494291A (en) * | 2018-05-04 | 2018-09-04 | 李亚呢 | Dynamic electric resistor brake apparatus |
| CN108616230A (en) * | 2018-05-04 | 2018-10-02 | 李亚呢 | The dynamic electric resistor brake of intelligence |
-
2018
- 2018-05-04 CN CN201810417865.6A patent/CN108749583B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201890217U (en) * | 2010-11-25 | 2011-07-06 | 北汽福田汽车股份有限公司 | Brake control device and vehicle having same |
| EP3040232A1 (en) * | 2014-12-29 | 2016-07-06 | Siemens Aktiengesellschaft | Safe electrical brake for a synchronous motor |
| CN107813706A (en) * | 2017-10-25 | 2018-03-20 | 中通客车控股股份有限公司 | A kind of integral new-energy passenger efficient EBA and method |
| CN108494291A (en) * | 2018-05-04 | 2018-09-04 | 李亚呢 | Dynamic electric resistor brake apparatus |
| CN108616230A (en) * | 2018-05-04 | 2018-10-02 | 李亚呢 | The dynamic electric resistor brake of intelligence |
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| Publication number | Publication date |
|---|---|
| CN108749583A (en) | 2018-11-06 |
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Effective date of registration: 20210315 Address after: No.8 Huayu Road, industrial park, quanpu Town, Liangshan County, Jining City, Shandong Province 272600 Applicant after: SHANDONG KANGJIAN AUTO PARTS TECHNOLOGY Co.,Ltd. Address before: 230000 building 6, Xinghai garden, logistics Avenue, Yaohai District, Hefei City, Anhui Province Applicant before: Li Yane |
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Address after: No.8 Huayu Road, industrial park, quanpu Town, Liangshan County, Jining City, Shandong Province 272600 Patentee after: Shandong Kangjian Automobile Technology Co.,Ltd. Address before: No.8 Huayu Road, industrial park, quanpu Town, Liangshan County, Jining City, Shandong Province 272600 Patentee before: SHANDONG KANGJIAN AUTO PARTS TECHNOLOGY Co.,Ltd. |
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Denomination of invention: Adaptive dynamic resistance braking system Effective date of registration: 20220222 Granted publication date: 20210402 Pledgee: Industrial and Commercial Bank of China Limited Liangshan sub branch Pledgor: Shandong Kangjian Automobile Technology Co.,Ltd. Registration number: Y2022980001726 |
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Date of cancellation: 20230316 Granted publication date: 20210402 Pledgee: Industrial and Commercial Bank of China Limited Liangshan sub branch Pledgor: Shandong Kangjian Automobile Technology Co.,Ltd. Registration number: Y2022980001726 |