CN105128683A - Boosting control system of eddy current retarder - Google Patents
Boosting control system of eddy current retarder Download PDFInfo
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- CN105128683A CN105128683A CN201510579497.1A CN201510579497A CN105128683A CN 105128683 A CN105128683 A CN 105128683A CN 201510579497 A CN201510579497 A CN 201510579497A CN 105128683 A CN105128683 A CN 105128683A
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- control unit
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- current vortex
- vortex retarder
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Regulating Braking Force (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
The invention discloses a boosting control system of an eddy current retarder. The boosting control system comprises a storage battery, a boosting circuit, a first control unit, a second control unit, a drive circuit, a brake pedal position sensor and the eddy current retarder. The first control unit is connected with the brake pedal position sensor through an analog signal interface, connected with an ABS control signal, an eddy current retarded work display signal and an ABS display signal through I/O interfaces, connected with an automobile speed signal through a pulse capture interface, and in data communication with the second control unit through a CAN bus. The second control unit is in data communication with an eddy current retarder temperature signal, a force moment signal and a current signal through analog signal interfaces, and is connected with the drive circuit through a PWM interface. The storage battery is connected with the drive circuit through the boosting circuit. The boosting circuit is connected with the eddy current retarder through the drive circuit. The boosting control system is small in passing current, uniform in stress, small in caused eddy current retarder temperature rise, good in braking performance constancy and capable of improving the riding comfort.
Description
Technical field
The invention belongs to automobile ancillary system technical field, be specifically related to current vortex retarder boosting rectifier control system.
Background technology
In vehicles processing factory, must complemental brake system be installed additional by the big-and-middle-sized commerial vehicle of laws and regulations requirement, alleviate thermal load and the contact wear of automobile primary brake equipment.Meanwhile, in automobile lower long slope continuous braking process, complemental brake system can participate in brake action, ensures main breaking zone device brake efficiency in an emergency braking situation.Current vortex retarder is conventional complemental brake system, and current vortex retarder structure is simple, cost is low, brake response speed fast, and lock torque size easily controls, as long as control the moment size that just can be controlled current vortex retarder by exciting current size.The body part of current vortex retarder comprises: stationary part has 8 excitation coils, and every 2 excitation coils or in parallel or series connection are one group, and 8 excitation coils are divided into 4 groups, and these 4 groups of coils connect in parallel.Stator is fixed on housing by support, and housing is bolted on vehicle frame.Rotor and the transmission shaft of current vortex retarder are connected in series.
Currently used eddy current retarder deceleration performance is very large by the impact of rotor temperature rise, the deceleration and stopping performance of current vortex retarder is caused to decline, so how to be reduced by the electric current of current vortex retarder, to reduce the heat energy that current vortex retarder coil produces, become the approach that of effectively improving eddy current retarder performance is new.
Adopt shift control current vortex retarder can cause discontinuity at whole current vortex retarder, during as adopted a gear, current vortex retarder is stressed on symmetry direction, and can not be subject in other directions; Adopt during a gear to cause electric current excessive simultaneously, causes coil temperature to raise, causes eddy current retarder hydraulic performance decline.Under the condition requiring same braking force, 8 excitation coils can be made to be the research direction of researchist by electric current simultaneously.
Summary of the invention
For solving the problem, the invention discloses current vortex retarder boosting rectifier control system, whole current vortex retarder uniform force, the electric current simultaneously passed through is little, causes current vortex retarder temperature rise little, and the constancy of its deceleration and stopping performance is good.
For achieving the above object, technical scheme of the present invention is as follows:
Current vortex retarder boosting rectifier control system, it is characterized in that: comprise storage battery, booster circuit, control unit one, control unit two, driving circuit, brake pedal position sensor, current vortex retarder, control unit one is connected with brake pedal position sensor by analog signal interface, by I/O interface and ABS control signal, electric vortex buffering work display and ABS display connect, be connected with automobile speed signal by pulse capture interface, set up data communication with control unit two by CAN simultaneously, control unit two is by analog signal interface and current vortex retarder temperature signal, current vortex retarder torque signals and current vortex retarder current signal set up data communication, driving circuit is connected by PWM interface, described storage battery is connected by booster circuit with driving circuit, booster circuit is connected with current vortex retarder by driving circuit.
Its control method is:
(1) first the voltage of storage battery is elevated to the expected value of setting by storage battery by booster circuit;
(2) control unit one detects brake pedal position signal, automobile speed signal and ABS control signal, then by control unit one computing, determine whether current vortex retarder works, when current vortex retarder works, current vortex retarder work display green light, when ABS works, ABS displaing lamp is bright, when ABS does not work, ABS display lamp goes out;
(3) data of detection are passed to control unit two by CAN by control unit one, and control unit two is according to the data transmitted by internal arithmetic, and output pwm signal, to driving circuit, controls the opening and closing of driving circuit;
(4) voltage of storage battery is elevated to expected value by booster circuit, and feed circuit flow to current vortex retarder through overdrive circuit;
(5) control unit two constantly detects current vortex retarder temperature signal, current vortex retarder torque signals, electric vortex buffering current signal:
1) when current vortex retarder temperature signal reaches the early warning value of control unit two inner setting, control unit two reduces the numerical value of PWM dutycycle, reduces the input electricity of current vortex retarder;
2) when current vortex retarder temperature signal does not reach the early warning value of control unit two inner setting:
Control unit two detects current vortex retarder torque signals, when the numerical value of current vortex retarder torque signals is lower than expected value, control unit two increases the numerical value of PWM dutycycle, increase the input value of current vortex retarder, decline to offset the eddy current retarder power caused because electric vortex buffering actuator temperature rises;
Control unit two detects current vortex retarder current signal, when the early warning value that current vortex retarder current signal sets higher than control unit two, control unit two reduces the numerical value of pwm signal dutycycle, when the early warning value that current vortex retarder current signal sets lower than control unit two, the lock torque that the current vortex retarder that control unit two can send according to control unit one requires controls the numerical value of pwm signal dutycycle.
Control unit one gathers brake pedal position signal, automobile speed signal, ABS control signal, the data of reception control unit two transmission simultaneously, data after computing are passed to control unit two by CAN receiving and transmitting signal, control unit one controls current vortex retarder work display simultaneously, ABS display, the signal that control unit two reception control unit one is transmitted, and detect current vortex retarder temperature signal, current vortex retarder torque signals, electric vortex buffering current signal, by control unit two internal arithmetic, corresponding pwm signal is exported to driving circuit.
For full-sized car, general voltage is 12V or 24V, for solving the problem that storage battery forces down, reduce current vortex retarder coil current, the present invention adds a booster circuit in periphery, by increasing apparatus, improved by the voltage of storage battery, reduce the supply current of current vortex retarder coil, the heat energy that coil inside produces reduces.
Adopt gear that corresponding gear coil can be caused to be energized for a long time, cause coil heating, the magnetic energy that coil produces declines, and causes eddy current retarder power to decline, in order to reduce certain coil electricity, and the situation that other coil is not energized, the present invention controls the open-minded of each coil respectively by driving circuit, is shared in each coil by its lock torque, and what decrease corresponding gear coil passes through electric current, reduce the temperature rise of current vortex retarder coil, improve the insensitivity of current vortex retarder.
For the current vortex retarder of shift control, the Spline smoothing of eddy current retarder can be caused, braking is caused to impact, affect ride comfort and the travelling comfort of running car, therefore PWM is adopted to control the conducting of each coil, eddy current retarder braking moment smooth change, improves travelling comfort.
The invention has the beneficial effects as follows:
Current vortex retarder boosting rectifier control system of the present invention, whole current vortex retarder uniform force, the electric current simultaneously passed through is little, causes current vortex retarder temperature rise little, and the constancy of its deceleration and stopping performance is good, improves travelling comfort.
Accompanying drawing explanation
Fig. 1 is connection diagram of the present invention.
Fig. 2 is braking analog signal input figure.
Fig. 3 is CAN data communication figure.
Fig. 4 is control unit figure of the present invention.
Fig. 5 is driving circuit figure of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further, following detailed description of the invention should be understood and be only not used in for illustration of the present invention and limit the scope of the invention.
The whole electrical schematic diagram of native system as shown in Figure 1, there is control unit one to be connected with brake pedal position sensor by analog signal interface, be connected with ABS control signal, electric vortex buffering work display and ABS display by I/O interface, connected by pulse capture interface and automobile speed signal, set up data communication with control unit two by CAN simultaneously.
Control unit two sets up data communication by analog signal interface and current vortex retarder temperature signal, current vortex retarder torque signals and current vortex retarder current signal, and by the opening and closing of PWM Interface Controller driving circuit, its PWM drive circuit as shown in Figure 5.
Storage battery is connected by booster circuit with driving circuit, controls driving circuit by pwm control signal, and booster circuit establishes the connection with current vortex retarder by driving circuit.
First the voltage of storage battery is elevated to the expected value of setting by storage battery by booster circuit.
Control unit one detects brake pedal position signal, automobile speed signal and ABS control signal, then by control unit one computing, determine whether current vortex retarder works, when current vortex retarder works, current vortex retarder work display green light, when ABS works, ABS displaing lamp is bright, when ABS does not work, ABS display lamp goes out.
The data of detection are passed to control unit two by CAN by control unit one, and control unit two is according to the data transmitted by internal arithmetic, and output pwm signal, to driving circuit, controls the opening and closing of driving circuit.
The voltage of storage battery is elevated to expected value by booster circuit, and feed circuit flow to current vortex retarder through overdrive circuit.
Control unit two constantly detects current vortex retarder temperature signal, current vortex retarder torque signals, electric vortex buffering current signal:
1) when current vortex retarder temperature signal reaches the early warning value of control unit two inner setting, control unit two reduces the numerical value of PWM dutycycle, reduces the input electricity of current vortex retarder.
2) when current vortex retarder temperature signal does not reach the early warning value of control unit two inner setting:
Control unit two detects current vortex retarder torque signals, when the numerical value of current vortex retarder torque signals is lower than expected value, control unit two increases the numerical value of PWM dutycycle, increase the input value of current vortex retarder, decline to offset the eddy current retarder power caused because electric vortex buffering actuator temperature rises.
Control unit two detects current vortex retarder current signal, when the early warning value that current vortex retarder current signal sets higher than control unit two, control unit two reduces the numerical value of pwm signal dutycycle, when the early warning value that current vortex retarder current signal sets lower than control unit two, the lock torque that the current vortex retarder that control unit two can send according to control unit one requires controls the numerical value of pwm signal dutycycle.
The present invention reduces current vortex retarder due to electric current excessive, coil temperature is caused to raise the auxiliary braking hydraulic performance decline caused, improve the stability of current vortex retarder auxiliary braking performance, whole current vortex retarder uniform force, the constancy of deceleration and stopping performance is good, improves travelling comfort, and the electric current simultaneously passed through is little, cause current vortex retarder temperature rise little, extend service life.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned embodiment, also comprises the technical scheme be made up of above technical characteristic combination in any.
Claims (2)
1. current vortex retarder boosting rectifier control system, it is characterized in that: comprise storage battery, booster circuit, control unit one, control unit two, driving circuit, brake pedal position sensor, current vortex retarder, control unit one is connected with brake pedal position sensor by analog signal interface, by I/O interface and ABS control signal, electric vortex buffering work display and ABS display connect, be connected with automobile speed signal by pulse capture interface, set up data communication with control unit two by CAN simultaneously, control unit two is by analog signal interface and current vortex retarder temperature signal, current vortex retarder torque signals and current vortex retarder current signal set up data communication, driving circuit is connected by PWM interface, described storage battery is connected by booster circuit with driving circuit, booster circuit is connected with current vortex retarder by driving circuit.
2. a control method for current vortex retarder boosting rectifier control system as claimed in claim 1, is characterized in that comprising the steps:
(1) first the voltage of storage battery is elevated to the expected value of setting by storage battery by booster circuit;
(2) control unit one detects brake pedal position signal, automobile speed signal and ABS control signal, then by control unit one computing, determine whether current vortex retarder works, when current vortex retarder works, current vortex retarder work display green light, when ABS works, ABS displaing lamp is bright, when ABS does not work, ABS display lamp goes out;
(3) data of detection are passed to control unit two by CAN by control unit one, and control unit two is according to the data transmitted by internal arithmetic, and output pwm signal, to driving circuit, controls the opening and closing of driving circuit;
(4) voltage of storage battery is elevated to expected value by booster circuit, and feed circuit flow to current vortex retarder through overdrive circuit;
(5) control unit two constantly detects current vortex retarder temperature signal, current vortex retarder torque signals, electric vortex buffering current signal:
1) when current vortex retarder temperature signal reaches the early warning value of control unit two inner setting, control unit two reduces the numerical value of PWM dutycycle, reduces the input electricity of current vortex retarder;
2) when current vortex retarder temperature signal does not reach the early warning value of control unit two inner setting:
Control unit two detects current vortex retarder torque signals; when the numerical value of current vortex retarder torque signals is lower than expected value; control unit two increases the numerical value of PWM dutycycle; increase the input value of current vortex retarder, decline to offset the eddy current retarder power caused because electric vortex buffering actuator temperature rises;
Control unit two detects current vortex retarder current signal, when the early warning value that current vortex retarder current signal sets higher than control unit two, control unit two reduces the numerical value of pwm signal dutycycle, when the early warning value that current vortex retarder current signal sets lower than control unit two, the lock torque that the current vortex retarder that control unit two can send according to control unit one requires controls the numerical value of pwm signal dutycycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510579497.1A CN105128683B (en) | 2015-09-14 | 2015-09-14 | Current vortex retarder boosting rectifier control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510579497.1A CN105128683B (en) | 2015-09-14 | 2015-09-14 | Current vortex retarder boosting rectifier control system |
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| CN105128683A true CN105128683A (en) | 2015-12-09 |
| CN105128683B CN105128683B (en) | 2017-06-20 |
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| CN201510579497.1A Active CN105128683B (en) | 2015-09-14 | 2015-09-14 | Current vortex retarder boosting rectifier control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108297697A (en) * | 2017-01-13 | 2018-07-20 | 南宁市健佳网络科技有限公司 | A kind of controller of current vortex retarder and its control method based on PWM control modes |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100066929A1 (en) * | 2008-09-12 | 2010-03-18 | Jds Uniphase Corporation | Optical vortex retarder micro-array |
| CN203078333U (en) * | 2013-01-05 | 2013-07-24 | 北京工业大学 | Braking torque electronic control unit of salient pole liquid cooling eddy current retarder |
| CN104802649A (en) * | 2015-03-17 | 2015-07-29 | 合肥协力仪表控制技术股份有限公司 | Eddy current retarder controller and control method |
| CN204956132U (en) * | 2015-09-14 | 2016-01-13 | 盐城市步高汽配制造有限公司 | Eddy current retarder control system that steps up |
-
2015
- 2015-09-14 CN CN201510579497.1A patent/CN105128683B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100066929A1 (en) * | 2008-09-12 | 2010-03-18 | Jds Uniphase Corporation | Optical vortex retarder micro-array |
| CN203078333U (en) * | 2013-01-05 | 2013-07-24 | 北京工业大学 | Braking torque electronic control unit of salient pole liquid cooling eddy current retarder |
| CN104802649A (en) * | 2015-03-17 | 2015-07-29 | 合肥协力仪表控制技术股份有限公司 | Eddy current retarder controller and control method |
| CN204956132U (en) * | 2015-09-14 | 2016-01-13 | 盐城市步高汽配制造有限公司 | Eddy current retarder control system that steps up |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108297697A (en) * | 2017-01-13 | 2018-07-20 | 南宁市健佳网络科技有限公司 | A kind of controller of current vortex retarder and its control method based on PWM control modes |
| CN108297697B (en) * | 2017-01-13 | 2021-06-18 | 广东仙童工控有限公司 | Eddy current retarder controller based on PWM control mode and control method thereof |
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| Publication number | Publication date |
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| CN105128683B (en) | 2017-06-20 |
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