CN105270187A - Eddy current retarder control system based on signal pulse bias amplification processing - Google Patents
Eddy current retarder control system based on signal pulse bias amplification processing Download PDFInfo
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- CN105270187A CN105270187A CN201510818664.3A CN201510818664A CN105270187A CN 105270187 A CN105270187 A CN 105270187A CN 201510818664 A CN201510818664 A CN 201510818664A CN 105270187 A CN105270187 A CN 105270187A
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Abstract
The invention discloses an eddy current retarder control system based on signal pulse bias amplification processing. The system comprises an eddy current retarder and is characterized by further comprising a single-chip microcomputer, a power supply module, a brake pedal, a shift switch, a switching quantity signal processing unit, a CAN bus data transceiving unit, a brake car light driving unit, a pulse bias amplification unit, an automobile master control unit, a trip computer, an eddy current retarder driving unit and a pulse signal acquisition unit, wherein the power supply module, the brake pedal, the shift switch, the switching quantity signal processing unit, the CAN bus data transceiving unit, the brake car light driving unit and the pulse bias amplification unit are respectively connected with the single-chip microcomputer; the automobile master control unit and the trip computer are respectively connected with the CAN bus data transceiving unit; the eddy current retarder driving unit is connected with the switching quantity signal processing unit; the pulse signal acquisition unit is connected with the pulse bias amplification unit; and the eddy current retarder is also simultaneously connected with the pulse signal acquisition unit and the eddy current retarder driving unit. According to the invention, the eddy current retarder control system can amplify load signals of the eddy current retarder without distortion through the pulse bias amplification unit and can accurately reflect real-time operation status of eddy current retarder.
Description
Technical field
The present invention relates to a kind of eddy current retarder control system, specifically refer to a kind of eddy current retarder control system being biased amplification process based on signal impulse.
Background technology
Current vortex retarder is a kind of auxiliary brake device for automobile, is commonly called as electricity and stops, and is mainly used in motor omnibus, urban public traffic vehicles and heavy duty truck.This device is arranged between automobile drive axle and change speed gear box, realizes no touch braking by electromagnetic induction principle.
Along with popularizing of current vortex retarder, simultaneously electric system increasing on passenger vehicle, current vortex retarder and such as the information exchange between ABS system, engine management system of other electric systems get more and more, and traditional electric signal mode causes eddy current retarder control system wire harness to become increasingly complex, add cost, reduce reliability.
Summary of the invention
The object of the invention is to overcome traditional eddy current retarder control system wire harness complicated, not only increase cost, and reduce the defect of reliability, provide a kind of and be biased the eddy current retarder control system amplifying process based on signal impulse.
Object of the present invention is achieved through the following technical solutions: be biased the eddy current retarder control system amplifying process based on signal impulse, comprise current vortex retarder, micro controller system, the power module be connected with micro controller system respectively, brake pedal, driving switch, on-off model processing unit, CAN data transceiving unit, braking car light driver element and pulsed bias amplifying unit, the automobile main control unit be connected with CAN data transceiving unit respectively and car running computer, the current vortex retarder driver element be connected with on-off model processing unit, the pulse signal acquisition unit be connected with pulsed bias amplifying unit, described current vortex retarder is then connected with current vortex retarder driver element with pulse signal acquisition unit simultaneously, described pulsed bias amplifying unit is by field effect transistor MOS1, aerotron VT3, aerotron VT4, aerotron VT5, negative pole is connected with the grid of field effect transistor MOS1, positive pole then forms the electric capacity C4 of the input end of this pulsed bias amplifying unit, N pole is connected with the emitter of aerotron VT5 after resistance R15, P pole is the diode D3 of ground connection after polar capacitor C3 then, N pole is connected with the P pole of diode D3, the diode D2 that P pole is then connected with the drain electrode of field effect transistor MOS1, be serially connected in the resistance R9 between the source electrode of field effect transistor MOS1 and the emitter of aerotron VT3, positive pole is connected with the emitter of aerotron VT4 after resistance R11, the polar capacitor C5 of negative earth, be serially connected in the resistance R10 between the collecting electrode of aerotron VT3 and the negative pole of polar capacitor C5, be serially connected in the resistance R12 between the base stage of aerotron VT4 and the negative pole of polar capacitor C5, be serially connected in the electric capacity C6 between the collecting electrode of aerotron VT4 and the base stage of aerotron VT5, one end is connected with the collecting electrode of aerotron VT5, the resistance R13 of other end ground connection, one end is connected with the emitter of aerotron VT5, the other end then forms the inductance L 1 of the mouth of this pulsed bias amplifying unit, and form with the resistance R14 that inductance L 1 is in parallel, the grid of described field effect transistor MOS1 is connected with the base stage of aerotron VT3, its source electrode is then connected with the emitter of aerotron VT4, the input end of described pulsed bias amplifying unit is connected with pulse signal acquisition unit, its mouth is then connected with micro controller system.
Further, described on-off model processing unit is by switching value treatment circuit, and the closed-loop detection circuit be in parallel with switching value treatment circuit forms, the input end of described switching value treatment circuit is connected with micro controller system, its mouth is then connected with the input end of current vortex retarder driver element, described switching value treatment circuit is by photoelectrical coupler U1, aerotron VT1, one end is as the input end of this switching value treatment circuit, the resistance R1 that the other end is then connected with the electrode input end of photoelectrical coupler U1 after resistance R2, positive pole is connected with the point of connection of resistance R2 with resistance R1, the electric capacity C1 of ground connection while negative pole is then connected with the negative input of photoelectrical coupler U1, be serially connected in the resistance R3 between the base stage of aerotron VT1 and emitter, and one end is connected with the collecting electrode of aerotron VT1, the resistance R4 that the other end then forms the mouth of this switching value treatment circuit forms, first mouth of described photoelectrical coupler U1 is connected with the base stage of aerotron VT1, its second mouth then ground connection.
Described closed-loop detection circuit is then by field effect transistor MOS, aerotron VT2, photoelectrical coupler U2, P pole is connected with the drain electrode of field effect transistor MOS, the diode D1 that N pole is then connected with the positive pole of electric capacity C1 after resistance R1, one end is connected with the grid of field effect transistor MOS, the resistance R7 that the other end is then connected with the base stage of aerotron VT2 after resistance R8, one end is connected with the source electrode of field effect transistor MOS, the resistance R6 that the other end is then connected with the point of connection of resistance R8 with resistance R7, and positive pole is connected with the collecting electrode of aerotron VT1 after resistance R4 through resistance R5 in turn, the electric capacity C2 that negative pole is then connected with the electrode input end of photoelectrical coupler U2 forms, negative input ground connection, its first mouth of described photoelectrical coupler U2 are then connected with the collecting electrode of aerotron VT2, its second mouth then ground connection, the grounded emitter of described aerotron VT2.
The present invention comparatively prior art compares, and has the following advantages and beneficial effect:
(1) the present invention is compared with existing eddy current retarder control system, and it achieves sharing of signals of vehicles, decreases the wire harness on vehicle, can improve the reliability of eddy current retarder control system, and reduce manufacturing cost.
(2) the present invention can process the drive singal of current vortex retarder and detect, and the drive singal avoiding system to send occurs mistake and causes current vortex retarder damage or affect its deceleration and stopping performance.
(3) the present invention can carry out undistorted signal amplification to the load signal of current vortex retarder by pulsed bias amplifying unit, makes the present invention can reflect the real-time operating conditions of current vortex retarder accurately.
Accompanying drawing explanation
Fig. 1 is integral structure block diagram of the present invention.
Fig. 2 is the circuit structure diagram of on-off model processing unit of the present invention.
Fig. 3 is the circuit structure diagram of pulsed bias amplifying unit of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment
As shown in Figure 1, the eddy current retarder control system being biased amplification process based on signal impulse of the present invention, it is by current vortex retarder, pulse signal acquisition unit, current vortex retarder driver element, pulsed bias amplifying unit, on-off model processing unit, micro controller system, brake pedal, driving switch, power module, CAN data transceiving unit, braking car light driver element, automobile main control unit and car running computer 13 part composition.
Wherein, micro controller system is as control center of the present invention, and it is respectively with power module, brake pedal, driving switch, pulsed bias amplifying unit, on-off model processing unit, CAN data transceiving unit and brake car light driver element and be connected.Described automobile main control unit is then connected with CAN data transceiving unit respectively with car running computer.Described current vortex retarder driver element is then connected with on-off model processing unit.Described current vortex retarder is then connected with pulse signal acquisition unit and current vortex retarder driver element simultaneously.
During enforcement, brake pedal and driving switch send pressure signal and gear signal respectively to micro controller system, and micro controller system then sends current vortex retarder control signal according to this pressure signal and gear signal to on-off model processing unit; This current vortex retarder control signal is input to current vortex retarder driver element after on-off model processing unit, is controlled current vortex retarder by current vortex retarder driver element.Meanwhile, described micro controller system also sends drive singal to braking car light driver element, lights braking car light.
Described pulse signal acquisition unit is then for gathering the load signal of current vortex retarder and being transferred to pulsed bias amplifying unit.This pulsed bias amplifying unit is then for carrying out undistorted signal amplification process to load signal.Described micro controller system then calculates the lock torque of current vortex retarder according to load signal, and sends automobile main control unit and car running computer to by CAN data transceiving unit.The present invention adopts CAN data transceiving unit to transmit information, can reduce the wire harness of control system, improves reliability of the present invention.Described power module is then for providing working power to whole control system.
In order to better control current vortex retarder, as shown in Figure 2, described on-off model processing unit is by switching value treatment circuit, and the closed-loop detection circuit be in parallel with switching value treatment circuit forms.The input end of described switching value treatment circuit is connected with micro controller system, its mouth is then connected with the input end of current vortex retarder driver element.
Described switching value treatment circuit is by photoelectrical coupler U1, and aerotron VT1, resistance R1, resistance R2, resistance R3, resistance R4 and electric capacity C1 form.
During connection, one end of this resistance R1 is connected with the electrode input end of photoelectrical coupler U1 after resistance R2, its other end then as the input end of this switching value treatment circuit, this input end is then connected with micro controller system.Ground connection while the positive pole of described electric capacity C1 is connected with the point of connection of resistance R2 with resistance R1, its negative pole is then connected with the negative input of photoelectrical coupler U1.Therefore, electric capacity C1 and resistance R1 and resistance R2 then forms a RC filter, after the input of current vortex retarder control signal is come in, carries out filtering process, then be input to photoelectrical coupler U1 by RC filter, and electric conduction coupler U1.
In addition, between the resistance R3 base stage that is serially connected in aerotron VT1 and emitter.The mouth that one end of resistance R4 is connected with the collecting electrode of aerotron VT1, its other end then forms this switching value treatment circuit, this mouth is then connected with current vortex retarder driver element, and current vortex retarder control signal is then delivered to current vortex retarder driver element by this mouth.First mouth of described photoelectrical coupler U1 is connected with the base stage of aerotron VT1, its second mouth then ground connection.
Whether described closed-loop detection circuit exists exception for detecting current vortex retarder control signal, it is by field effect transistor MOS, aerotron VT2, photoelectrical coupler U2, P pole is connected with the drain electrode of field effect transistor MOS, the diode D1 that N pole is then connected with the positive pole of electric capacity C1 after resistance R1, one end is connected with the grid of field effect transistor MOS, the resistance R7 that the other end is then connected with the base stage of aerotron VT2 after resistance R8, one end is connected with the source electrode of field effect transistor MOS, the resistance R6 that the other end is then connected with the point of connection of resistance R8 with resistance R7, and positive pole is connected with the collecting electrode of aerotron VT1 after resistance R4 through resistance R5 in turn, the electric capacity C2 that negative pole is then connected with the electrode input end of photoelectrical coupler U2 forms.Negative input ground connection, its first mouth of described photoelectrical coupler U2 are then connected with the collecting electrode of aerotron VT2, its second mouth then ground connection.The grounded emitter of described aerotron VT2.
As shown in Figure 3, the structure of described pulsed bias amplifying unit by field effect transistor MOS1, aerotron VT3, aerotron VT4, aerotron VT5, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, diode D2, diode D3, polar capacitor C3, electric capacity C4, polar capacitor C5, electric capacity C6 and inductance L 1 form.
The input end that during connection, the negative pole of electric capacity C4 is connected with the grid of field effect transistor MOS1, its positive pole then forms this pulsed bias amplifying unit.The N pole of diode D3 is connected with the emitter of aerotron VT5 after resistance R15, its P pole then ground connection after polar capacitor C3.The N pole of diode D2 is connected with the P pole of diode D3, its P pole is then connected with the drain electrode of field effect transistor MOS1.Resistance R9 is then serially connected between the source electrode of field effect transistor MOS1 and the emitter of aerotron VT3.The positive pole of polar capacitor C5 is connected with the emitter of aerotron VT4 after resistance R11, its negative earth.Resistance R10 is then serially connected between the collecting electrode of aerotron VT3 and the negative pole of polar capacitor C5.Resistance R12 is serially connected between the base stage of aerotron VT4 and the negative pole of polar capacitor C5.Electric capacity C6 is serially connected between the collecting electrode of aerotron VT4 and the base stage of aerotron VT5.One end of resistance R13 is connected with the collecting electrode of aerotron VT5, its other end ground connection.The mouth that one end of inductance L 1 is connected with the emitter of aerotron VT5, its other end then forms this pulsed bias amplifying unit.Resistance R14 is then in parallel with inductance L 1.The grid of described field effect transistor MOS1 is connected with the base stage of aerotron VT3, its source electrode is then connected with the emitter of aerotron VT4.The input end of described pulsed bias amplifying unit is connected with pulse signal acquisition unit, its mouth is then connected with micro controller system.
As mentioned above, just well the present invention can be implemented.
Claims (3)
1. the eddy current retarder control system amplifying process is biased based on signal impulse, comprise current vortex retarder, it is characterized in that, also comprise micro controller system, the power module be connected with micro controller system respectively, brake pedal, driving switch, on-off model processing unit, CAN data transceiving unit, braking car light driver element and pulsed bias amplifying unit, the automobile main control unit be connected with CAN data transceiving unit respectively and car running computer, the current vortex retarder driver element be connected with on-off model processing unit, and the pulse signal acquisition unit to be connected with pulsed bias amplifying unit, described current vortex retarder is then connected with current vortex retarder driver element with pulse signal acquisition unit simultaneously, described pulsed bias amplifying unit is by field effect transistor MOS1, aerotron VT3, aerotron VT4, aerotron VT5, negative pole is connected with the grid of field effect transistor MOS1, positive pole then forms the electric capacity C4 of the input end of this pulsed bias amplifying unit, N pole is connected with the emitter of aerotron VT5 after resistance R15, P pole is the diode D3 of ground connection after polar capacitor C3 then, N pole is connected with the P pole of diode D3, the diode D2 that P pole is then connected with the drain electrode of field effect transistor MOS1, be serially connected in the resistance R9 between the source electrode of field effect transistor MOS1 and the emitter of aerotron VT3, positive pole is connected with the emitter of aerotron VT4 after resistance R11, the polar capacitor C5 of negative earth, be serially connected in the resistance R10 between the collecting electrode of aerotron VT3 and the negative pole of polar capacitor C5, be serially connected in the resistance R12 between the base stage of aerotron VT4 and the negative pole of polar capacitor C5, be serially connected in the electric capacity C6 between the collecting electrode of aerotron VT4 and the base stage of aerotron VT5, one end is connected with the collecting electrode of aerotron VT5, the resistance R13 of other end ground connection, one end is connected with the emitter of aerotron VT5, the other end then forms the inductance L 1 of the mouth of this pulsed bias amplifying unit, and form with the resistance R14 that inductance L 1 is in parallel, the grid of described field effect transistor MOS1 is connected with the base stage of aerotron VT3, its source electrode is then connected with the emitter of aerotron VT4, the input end of described pulsed bias amplifying unit is connected with pulse signal acquisition unit, its mouth is then connected with micro controller system.
2. the eddy current retarder control system being biased amplification process based on signal impulse according to claim 1, it is characterized in that: described on-off model processing unit is by switching value treatment circuit, and the closed-loop detection circuit be in parallel with switching value treatment circuit forms, the input end of described switching value treatment circuit is connected with micro controller system, its mouth is then connected with the input end of current vortex retarder driver element, described switching value treatment circuit is by photoelectrical coupler U1, aerotron VT1, one end is as the input end of this switching value treatment circuit, the resistance R1 that the other end is then connected with the electrode input end of photoelectrical coupler U1 after resistance R2, positive pole is connected with the point of connection of resistance R2 with resistance R1, the electric capacity C1 of ground connection while negative pole is then connected with the negative input of photoelectrical coupler U1, be serially connected in the resistance R3 between the base stage of aerotron VT1 and emitter, and one end is connected with the collecting electrode of aerotron VT1, the resistance R4 that the other end then forms the mouth of this switching value treatment circuit forms, first mouth of described photoelectrical coupler U1 is connected with the base stage of aerotron VT1, its second mouth then ground connection.
3. the eddy current retarder control system being biased amplification process based on signal impulse according to claim 2, it is characterized in that: described closed-loop detection circuit is then by field effect transistor MOS, aerotron VT2, photoelectrical coupler U2, P pole is connected with the drain electrode of field effect transistor MOS, the diode D1 that N pole is then connected with the positive pole of electric capacity C1 after resistance R1, one end is connected with the grid of field effect transistor MOS, the resistance R7 that the other end is then connected with the base stage of aerotron VT2 after resistance R8, one end is connected with the source electrode of field effect transistor MOS, the resistance R6 that the other end is then connected with the point of connection of resistance R8 with resistance R7, and positive pole is connected with the collecting electrode of aerotron VT1 after resistance R4 through resistance R5 in turn, the electric capacity C2 that negative pole is then connected with the electrode input end of photoelectrical coupler U2 forms, negative input ground connection, its first mouth of described photoelectrical coupler U2 are then connected with the collecting electrode of aerotron VT2, its second mouth then ground connection, the grounded emitter of described aerotron VT2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510818664.3A CN105270187A (en) | 2015-11-23 | 2015-11-23 | Eddy current retarder control system based on signal pulse bias amplification processing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510818664.3A CN105270187A (en) | 2015-11-23 | 2015-11-23 | Eddy current retarder control system based on signal pulse bias amplification processing |
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| CN105270187A true CN105270187A (en) | 2016-01-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120254A (en) * | 2018-10-09 | 2019-01-01 | 华北电力大学（保定） | A kind of switching value input circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6286637B1 (en) * | 1998-03-09 | 2001-09-11 | Kwangju Institute Of Science & Technology | Contactless eddy current brake for cars |
| CN202488397U (en) * | 2012-03-20 | 2012-10-10 | 江苏物联网研究发展中心 | Intelligent controller for eddy current retarder |
| CN202623962U (en) * | 2012-04-27 | 2012-12-26 | 启东市爱普电器有限公司 | Controller circuit of vehicle retarder |
| CN103832288A (en) * | 2014-03-13 | 2014-06-04 | 山东交通职业学院 | Eddy current retarder control system based on CAN bus |
| CN104849041A (en) * | 2015-05-17 | 2015-08-19 | 成都诚邦动力测试仪器有限公司 | Signal biased amplification-type gearbox testing system |
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2015
- 2015-11-23 CN CN201510818664.3A patent/CN105270187A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6286637B1 (en) * | 1998-03-09 | 2001-09-11 | Kwangju Institute Of Science & Technology | Contactless eddy current brake for cars |
| CN202488397U (en) * | 2012-03-20 | 2012-10-10 | 江苏物联网研究发展中心 | Intelligent controller for eddy current retarder |
| CN202623962U (en) * | 2012-04-27 | 2012-12-26 | 启东市爱普电器有限公司 | Controller circuit of vehicle retarder |
| CN103832288A (en) * | 2014-03-13 | 2014-06-04 | 山东交通职业学院 | Eddy current retarder control system based on CAN bus |
| CN104849041A (en) * | 2015-05-17 | 2015-08-19 | 成都诚邦动力测试仪器有限公司 | Signal biased amplification-type gearbox testing system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120254A (en) * | 2018-10-09 | 2019-01-01 | 华北电力大学（保定） | A kind of switching value input circuit |
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Application publication date: 20160127 |