CN108616230B - Intelligent dynamic resistance brake - Google Patents
Intelligent dynamic resistance brake Download PDFInfo
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- CN108616230B CN108616230B CN201810417749.4A CN201810417749A CN108616230B CN 108616230 B CN108616230 B CN 108616230B CN 201810417749 A CN201810417749 A CN 201810417749A CN 108616230 B CN108616230 B CN 108616230B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
- H02P3/22—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor by short-circuit or resistive braking
Abstract
The invention belongs to the field of resistance brakes, and particularly relates to an intelligent dynamic resistance brake which comprises a telescopic rod, a brake resistor, a multi-control switch, a heat energy absorption device, a current transformer, a controller and the like. The dynamic resistance brake controls the magnitude of current by adjusting resistance gears in different ranges, 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 gears, 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 an intelligent dynamic resistance brake.
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.
A dynamic resistance brake 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 braking resistors are arranged inside the braking resistor box and used for converting electric energy generated during braking into heat energy to be dissipated, and the braking resistors are divided into multiple stages according to the resistance values of the resistors;
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;
further 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 telescopic rods are arranged on the right side of the water tank, connected with the heat energy absorption device and used for driving the heat energy absorption device to extend and retract;
the multi-control switch is arranged beside the brake resistor box and used for connecting resistors with different resistance values;
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 controller is in signal connection with the temperature sensor, the UWB ranging module, the vehicle speed sensor, the current transformer, the telescopic rod and the multi-control switch;
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 vehicle speed of the vehicle is larger than a first speed value, the multi-control switch is connected to a second resistance gear, and when the resistance brake starts braking, the telescopic rod extends into the braking resistance box to form a second quantity of heat energy absorption devices; when the current transformer detects that the braking current is lower than a first current value, the multi-control switch is switched from the second resistance gear to the first resistance gear, 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;
(2) when the current vehicle speed is lower than a first speed value, the multi-control switch is connected to a third resistance gear, and the telescopic rod extends into the brake 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 multi-control switch is switched from a third resistance gear to a second resistance gear, when the current of the brake loop is reduced to a first current value, the multi-control switch is switched from the second resistance gear to the first resistance gear, 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 a third numerical value according to the switching of the resistance gears; 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 telescopic rod withdraws all the heat energy absorption devices to heat water in the water tank;
the first resistance grade is more than the second resistance grade and more than the third resistance grade;
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 brake controls the magnitude of the current by adjusting resistance gears with different resistance values, so that the braking torque is kept stable, the effect of stable braking is achieved, and meanwhile, the heat energy absorption device stretches into corresponding numbers according to the adjustment of the resistance gears, so that the effects of good heat dissipation and full heat energy utilization are achieved.
Drawings
FIG. 1 shows a schematic diagram of an intelligent dynamic resistance brake;
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, filled with water and uniformly provided with a plurality of heat energy absorbing devices 10;
the braking resistors 3 are arranged inside the braking resistor box, are used for converting electric energy generated during braking into heat energy to be dissipated, and are divided into multiple stages according to the resistance value of the resistors;
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 telescopic rods 8 are arranged on the right side of the water tank 2 and connected with the heat energy absorption device 10 and are used for driving the heat energy absorption device 10 to extend and retract;
the multi-control switch 9 is arranged beside the brake resistor box and used for connecting resistors with different resistance values;
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 controller 11 is in signal connection with the temperature sensor 4, the UWB ranging module 5, the vehicle speed sensor 6, the current transformer 7, the telescopic rod 8 and the multi-control switch 9;
the controller 11 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 vehicle speed of the vehicle is larger than a first speed value, the multi-control switch 9 is connected to a second resistance gear, and when the resistance brake starts to brake, the telescopic rod 8 extends into the brake resistance box to form a second quantity of heat energy absorption devices 10; when the current transformer 7 detects that the braking current is lower than the first current value, the multi-control switch 9 is switched from the second resistance gear to the first resistance gear, 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 the second numerical value to the third numerical value, so that more heat energy generated by the braking resistor is absorbed;
(2) when the current vehicle speed is lower than a first speed value, the multi-control switch 9 is connected to a third resistance gear, and the telescopic rod 8 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 multi-control switch 9 is switched from a third resistance gear to a second resistance gear, when the current of the brake loop is reduced to a first current value, the multi-control switch 9 is switched from the second resistance gear to the first resistance gear, 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 is switched to a third numerical value according to the switching of the resistance gears; 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 telescopic rod 8 withdraws all the heat energy absorption devices 10 to heat the water in the water tank 2;
the first resistance grade is more than the second resistance grade and more than the third resistance grade;
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 intelligent dynamic resistance brake 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 braking resistors are arranged inside the braking resistor box and used for converting electric energy generated during braking into heat energy to be dissipated, and the braking resistors are divided into multiple stages according to the resistance values of the resistors;
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 telescopic rods are arranged on the right side of the water tank, connected with the heat energy absorption device and used for driving the heat energy absorption device to extend and retract;
the multi-control switch is arranged beside the brake resistor box and used for connecting the brake resistors with different resistance values;
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 controller is in signal connection with the temperature sensor, the UWB ranging module, the vehicle speed sensor, the current transformer, the telescopic rod and the multi-control switch;
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 vehicle speed of the vehicle is larger than a first speed value, the multi-control switch is connected to a second resistance gear, and when the resistance brake starts braking, the telescopic rod extends into the braking resistance box to form a second quantity of heat energy absorption devices; when the current transformer detects that the braking current is lower than a first current value, the multi-control switch is switched from the second resistance gear to the first resistance gear, 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;
(2) when the current vehicle speed is lower than a first speed value, the multi-control switch is connected to a third resistance gear, and the telescopic rod extends into the brake 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 multi-control switch is switched from a third resistance gear to a second resistance gear, when the current of the brake loop is reduced to a first current value, the multi-control switch is switched from the second resistance gear to the first resistance gear, 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 a third numerical value according to the switching of the resistance gears; 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 telescopic rod withdraws all the heat energy absorption devices to heat water in the water tank;
the first resistance grade is more than the second resistance grade and more than the third resistance grade;
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 |
|---|---|---|---|
| CN201810417749.4A CN108616230B (en) | 2018-05-04 | 2018-05-04 | Intelligent dynamic resistance brake |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810417749.4A CN108616230B (en) | 2018-05-04 | 2018-05-04 | Intelligent dynamic resistance brake |
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| CN108616230A CN108616230A (en) | 2018-10-02 |
| CN108616230B true CN108616230B (en) | 2021-05-28 |
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| CN201810417749.4A Active CN108616230B (en) | 2018-05-04 | 2018-05-04 | Intelligent dynamic resistance brake |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108749583B (en) * | 2018-05-04 | 2021-04-02 | 山东康健汽车配件科技股份有限公司 | Adaptive dynamic resistance braking system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101249802A (en) * | 2008-03-27 | 2008-08-27 | 上海工程技术大学 | Urban rail traffic vehicle braking energy recovery system |
| DE202008018278U1 (en) * | 2008-05-10 | 2012-07-04 | Schalker Eisenhütte Maschinenfabrik Gmbh | Rail-guided traction vehicle |
| CN106877780A (en) * | 2016-11-16 | 2017-06-20 | 长沙奥托自动化技术有限公司 | One kind driving frequency converter control system |
| 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 |
-
2018
- 2018-05-04 CN CN201810417749.4A patent/CN108616230B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101249802A (en) * | 2008-03-27 | 2008-08-27 | 上海工程技术大学 | Urban rail traffic vehicle braking energy recovery system |
| DE202008018278U1 (en) * | 2008-05-10 | 2012-07-04 | Schalker Eisenhütte Maschinenfabrik Gmbh | Rail-guided traction vehicle |
| CN106877780A (en) * | 2016-11-16 | 2017-06-20 | 长沙奥托自动化技术有限公司 | One kind driving frequency converter control system |
| 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 |
Non-Patent Citations (1)
| Title |
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| 电阻制动在地铁牵引电机中的应用;欧红;《湖南冶金职业技术学院学报》;20030630;第3卷(第2期);正文第188页左栏第1段-右栏最后1段 * |
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Effective date of registration: 20210508 Address after: No.555 Zhennan Road, Hai'an high tech Zone, Nantong City, Jiangsu Province, 226000 Applicant after: Nantong Zhongli 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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