CN103121409A - Automobile braking circuit protecting device and automobile braking device provided with the same - Google Patents
Automobile braking circuit protecting device and automobile braking device provided with the same Download PDFInfo
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- CN103121409A CN103121409A CN201110370012XA CN201110370012A CN103121409A CN 103121409 A CN103121409 A CN 103121409A CN 201110370012X A CN201110370012X A CN 201110370012XA CN 201110370012 A CN201110370012 A CN 201110370012A CN 103121409 A CN103121409 A CN 103121409A
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Abstract
The invention provides an automobile braking circuit protecting device and an automobile braking device provided with the same. The automobile braking circuit protecting device comprises a voltage reduction module which reduces voltage output by a direct current bus and a brake switch tube IGBT, wherein a collector electrode of the IGBT is connected with a positive electrode of the direct current bus, an emitting electrode of the IGBT is connected with a negative electrode of the direct current bus, a clamping module control controls gate electrode voltage of the IGBT and comprises a first transient state restraining diode and a second transient state restraining diode, a gate electrode of the IGBT is connected with the negative electrode of the direct current bus through the first transient state restraining diode and the second transient state restraining diode, the first transient state restraining diode and the second transient state restraining diode are connected in series, and reverse breakdown voltage of the gate electrode is located in an operating voltage range of the IGBT. A voltage reduction control module controls breakover of the IGBT, and comprises a third transient state restraining diode and a conducting diode. A negative electrode of the third transient state restraining diode is connected with the positive electrode of the direct current bus, and a positive electrode of the third transient state restraining diode is connected with the gate electrode of the IGBT. The automobile braking circuit protecting device and the automobile braking circuit provided with the same are simple in circuit and small in the number of components and can rapidly achieve braking in time.
Description
Technical field
The present invention relates to automobile technical field processed, particularly a kind of fender guard of motor braking circuit and have its brake device for car.
Background technology
At present, in automotive field, existing motor braking circuit control program structure is comprised of braking resistor, brake switch pipe (IGBT), direct current bus voltage detecting circuit, microcontroller (MCU) and brake switch tube drive circuit.
alternating current dynamo can produce counter electromotive force when braking, be added on the actuator dc bus, thereby DC bus-bar voltage is raise fast, if can not in time release, dc bus overvoltage meeting constitutes a threat to Support Capacitor and driver switch pipe, therefore, existing mode is when the design communication motor driver, need to consider braking circuit, namely when DC bus-bar voltage being detected by direct current bus voltage detecting circuit when too high, microcontroller (MCU) sends and starts the braking circuit signal, it is closed brake switch pipe signal, make switching valve closed through overdrive circuit, form the loop with braking resistor, discharge to dc bus, thereby DC bus-bar voltage is dropped to zone of reasonableness.
The shortcoming of prior art is, the detect microcontroller too high by DC bus-bar voltage judges, send signal to MCU again, the driving circuit signal transmission, whole process not only makes braking circuit long opening time, also because electronic component too much causes having increased potential system failure point, and then cause system reliability to reduce, maintenance cost improves.
Summary of the invention
The present invention is intended to one of solve the problems of the technologies described above at least.
For this reason, one object of the present invention is to propose that a kind of circuit is simple and components and parts are few, and can produce in time fast the fender guard of the motor braking circuit of braking maneuver.
Another object of the present invention is to propose a kind of brake device for car.
to achieve these goals, the embodiment of first aspect present invention has proposed a kind of fender guard of motor braking circuit, comprise voltage reduction module, described voltage reduction module is used for the voltage of the dc bus output of described automobile is carried out step-down, wherein, described voltage reduction module comprises brake switch pipe IGBT and the first resistance, the collecting electrode of described brake switch pipe IGBT is connected with the positive pole of the dc bus of described motor braking circuit by the first resistance, and the emitter of described brake switch pipe IGBT is connected with the negative pole of described dc bus, the clamper module, described clamper module is used for controlling the gate voltage of described brake switch pipe IGBT, wherein, described clamper module comprises the first to second Transient Suppression Diode, wherein, the gate pole of described brake switch pipe IGBT passes through the first Transient Suppression Diode and is connected with the negative pole of described dc bus with the second Transient Suppression Diode of described the first anti-phase series connection of transient diode, wherein, the breakdown reverse voltage of described the first Transient Suppression Diode and described the second Transient Suppression Diode is positioned at the driving signal operating voltage range of described brake switch pipe IGBT, the step-down control module, described step-down control module is used for controlling the conducting of described brake switch pipe IGBT, wherein, described step-down control module comprises the 3rd Transient Suppression Diode and conducting diode, the negative pole of described the 3rd Transient Suppression Diode is connected with the positive pole of described dc bus and anodal is connected with the gate pole of described brake switch pipe IGBT with the second resistance with described conducting diode series connection by conducting diode, wherein, the clamper module also includes the 3rd resistance with described the first to second transient voltage suppressor paralleling.
Fender guard according to the motor braking circuit of the embodiment of the present invention; when producing overvoltage between the both positive and negative polarity of the dc bus of brake device for car; can be rapidly by release overvoltage between the dc bus both positive and negative polarity of brake switch pipe IGBT; and then start rapidly the braking circuit of automobile, less delay.In addition, the circuit of this fender guard is simple and electronic devices and components are few, thereby has reduced system failure point, has increased the reliability of motor braking circuit, reduces maintenance cost.
In addition, the fender guard of motor braking circuit according to the above embodiment of the present invention can also have following additional technical characterictic:
In one embodiment of the invention, described the first resistance is braking resistor.
In one embodiment of the invention, one end of described the second resistance is connected with the positive pole of described the 3rd Transient Suppression Diode and the other end is connected with the positive pole of described conducting diode, and the negative pole of described conducting diode is connected with the gate pole of described brake switch pipe IGBT.
In one embodiment of the invention, the gate pole of described brake switch pipe IGBT is connected with the negative pole of described the first Transient Suppression Diode, and the negative pole of described the second Transient Suppression Diode is connected with the negative pole of described dc bus.
In one embodiment of the invention, the gate pole of described brake switch pipe IGBT is connected with the positive pole of described the first Transient Suppression Diode, and the positive pole of described the second Transient Suppression Diode is connected with the negative pole of described dc bus.
Second aspect present invention embodiment has proposed a kind of brake device for car, comprises alternating current dynamo; Dc bus; Inverter, described inverter are connected with described dc bus and the mouth of described inverter is connected with described alternating current dynamo; Support Capacitor, described Support Capacitor and described inverter parallel; With the fender guard of motor braking circuit, described fender guard is the fender guard of the described motor braking circuit of above-mentioned first aspect embodiment, and the fender guard of described motor braking circuit and described inverter and described Support Capacitor are arranged in parallel.
According to brake device for car of the present invention, the automobile brake action postpones short, and the electronic devices and components of brake device for car are few, are difficult for et out of order, is convenient to maintenance.
In addition, brake device for car according to the above embodiment of the present invention can also have following additional technical characterictic:
In one embodiment of the invention, described inverter is three-phase inverter, and the three-phase output end of described three-phase inverter all is connected with described alternating current dynamo.
In one embodiment of the invention, the breakdown reverse voltage of described the first and second Transient Suppression Diodes is lower than the upper voltage limit of the operating voltage range of the driving signal of the gate pole that is applied to described brake switch pipe IGBT.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the circuit diagram of fender guard of the motor braking circuit of one embodiment of the invention;
Fig. 2 is the circuit diagram of brake device for car of the fender guard with motor braking circuit shown in Figure 1 of one embodiment of the invention; And
Fig. 3 is the circuit diagram of the brake device for car of another embodiment of the present invention.
The specific embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance.
In description of the invention, need to prove, unless clear and definite regulation and restriction are separately arranged, term " installation ", " being connected ", " connection " should be done broad understanding, for example, can be captive joints, can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also to be electrically connected to; Can be directly to be connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can particular case understand above-mentioned term concrete meaning in the present invention.
Below in conjunction with Fig. 1, at first fender guard according to the motor braking circuit of the embodiment of the present invention is described.
As shown in Figure 1, be the circuit diagram of the fender guard of the motor braking circuit of the embodiment of the present invention.The fender guard of the motor braking circuit of the embodiment of the present invention comprises voltage reduction module 10, clamper module 20 and step-down control module 30.
Wherein, brake switch pipe IGBT, the first Transient Suppression Diode TVS1, the second Transient Suppression Diode TVS2, the 3rd Transient Suppression Diode TVS3 and the 3rd resistance R 3.In one embodiment of the invention, described the first resistance R 1 is braking resistor.
In the foregoing description, the breakdown reverse voltage of the first Transient Suppression Diode TVS1 and the second Transient Suppression Diode TVS2 is positioned at the driving signal operating voltage range of brake switch pipe IGBT, namely the breakdown reverse voltage of the first Transient Suppression Diode TVS1 and the second Transient Suppression Diode TVS2 should lower than brake switch pipe IGBT can be not breakdown the lower gate pole G that can be applied to brake switch pipe IGBT of situation on maximum voltage.
Fender guard according to the motor braking circuit of the embodiment of the present invention; when brake device for car is braked; produce overvoltage between the both positive and negative polarity of dc bus; can be rapidly by release overvoltage between the dc bus both positive and negative polarity of brake switch pipe IGBT; and then start rapidly the braking circuit of automobile, less delay.In addition, the circuit of this fender guard is simple and electronic devices and components are few, thereby has reduced system failure point, has increased the reliability of motor braking circuit, reduces maintenance cost.
As shown in Figure 1, in one embodiment of the invention, the negative pole of conducting diode D1 is connected with the second resistance R 2, and the second resistance R 2 is connected with the gate pole G of brake switch pipe IGBT, and the positive pole of conducting diode D1 is connected with the positive pole of the 3rd Transient Suppression Diode TVS3.Embodiments of the invention are not limited to this, for example can be with the location swap of conducting diode D1 and the second resistance R 2, namely an end of the second resistance R 2 is connected with the positive pole of the 3rd Transient Suppression Diode TVS3 and the other end is connected with the positive pole of conducting diode D1, and the negative pole of conducting diode D1 is connected with the gate pole G of brake switch pipe IGBT.The location swap of conducting diode D1 and the second resistance R 2 does not affect its role.
In some embodiments of the invention, the gate pole G of brake switch pipe IGBT can also be connected with the negative pole of the first Transient Suppression Diode TVS1, the negative pole of the second Transient Suppression Diode TVS2 is connected with the negative pole of dc bus, namely simultaneously with the first Transient Suppression Diode TVS1 be connected the both positive and negative polarity transposing of Transient Suppression Diode TVS2 and connect.In addition, the position of the first Transient Suppression Diode TVS1 and the second Transient Suppression Diode TVS2 can also be exchanged, as long as guarantee that the positive pole of the first Transient Suppression Diode TVS1 and the positive pole of the second Transient Suppression Diode TVS2 are connected, perhaps the negative pole of the negative pole of the first Transient Suppression Diode TVS1 and the second Transient Suppression Diode TVS2 is connected and gets final product.These transformation results all can play same effect.
For the principle of work to the fender guard of the motor braking circuit of the above embodiment of the present invention has clearer understanding; below the fender guard of the motor braking circuit of above-described embodiment is applied in a brake device for car, and be described in detail in following part.
As shown in Figure 2, be the brake device for car of the fender guard with the motor braking circuit shown in above-described embodiment of one embodiment of the invention.The brake device for car of the embodiment of the present invention comprises the fender guard (fender guard as shown in Figure 1) of alternating current dynamo M, dc bus link (be the positive pole of dc bus link above Fig. 2, the below is the negative pole of dc bus link), inverter 110, Support Capacitor C1 and motor braking circuit.
Wherein, inverter 110 is connected with dc bus and the mouth of inverter 110 is connected with alternating current dynamo M.In conjunction with Fig. 2, in one embodiment of the invention, inverter 110 is three-phase inverter, and the three-phase output end of three-phase inverter all is connected with alternating current dynamo M, again in conjunction with Fig. 2, all is connected with alternating current dynamo M with the W three-phase as U, the V of three-phase inverter.
Support Capacitor C1 and inverter parallel.Fender guard is the fender guard of the described motor braking circuit of above-mentioned first aspect embodiment; the fender guard of motor braking circuit and inverter and Support Capacitor C1 are arranged in parallel, and namely the fender guard of motor braking circuit, inverter and Support Capacitor C1 all are connected with the both positive and negative polarity of dc bus.
In one embodiment of the invention, the first Transient Suppression Diode TVS1 and the second Transient Suppression Diode TVS2 are the low pressure Transient Suppression Diode.The breakdown reverse voltage of the first Transient Suppression Diode TVS1 and the second Transient Suppression Diode TVS2 should be selected the upper voltage limit lower than the operating voltage range of the driving signal of the gate pole G that is applied to brake switch pipe IGBT.Be applied to the upper voltage limit of driving signal of gate pole G of brake switch pipe IGBT for can guarantee brake switch pipe IGBT normal operation, the situation that brake switch pipe IGBT can be not breakdown is lower can be applied to maximum voltage on the gate pole G of brake switch pipe IGBT.
As shown in Figure 3, circuit diagram for the brake device for car of another embodiment of the present invention, compare with the circuit of brake device for car shown in Figure 1, the both positive and negative polarity of the first Transient Suppression Diode TVS1 and the second Transient Suppression Diode TVS2 has been changed direction, can realize identical effect equally.
In one embodiment of the invention, formed the clamping circuit of the gate pole G of brake switch pipe IGBT by the first Transient Suppression Diode TVS1 and the second Transient Suppression Diode TVS2.the first Transient Suppression Diode TVS1 of embodiments of the invention and the second Transient Suppression Diode TVS2 breakdown reverse voltage drive the signal operating voltage range at brake switch pipe IGBT, mainly in order to prevent that brake switch pipe IGBT from driving signal and puncturing brake switch pipe IGBT over its operating range, when alternating current dynamo M brakes, voltage between the dc bus both positive and negative polarity surpasses the breakdown reverse voltage of the 3rd Transient Suppression Diode TVS3 (high pressure transient suppressor pipe), the gate pole G voltage of brake switch pipe IGBT rises gradually, because the first Transient Suppression Diode TVS1 and the second Transient Suppression Diode TVS2 breakdown reverse voltage drive the signal operating voltage range at brake switch pipe IGBT, therefore the gate pole G voltage maximum of brake switch pipe IGBT is no more than the breakdown reverse voltage of the first Transient Suppression Diode TVS1 and the second Transient Suppression Diode TVS2 breakdown reverse voltage, at this moment, brake switch pipe IGBT conducting gradually, thereby make between the both positive and negative polarity of dc bus and braking resistor R1 and brake switch pipe IGBT and form the loop, release overvoltage between the dc bus both positive and negative polarity, reach protection and be connected to Support Capacitor C1 on dc bus and the purpose of inverter 110, when the voltage between the dc bus both positive and negative polarity drops to the breakdown reverse voltage sum of the first Transient Suppression Diode TVS1 and the second Transient Suppression Diode TVS2 breakdown reverse voltage and the 3rd Transient Suppression Diode TVS3 (high pressure transient suppressor pipe), the gate pole G of brake switch pipe IGBT is by the 3rd resistance R 3 (pass resistance break) loop discharge, brake switch pipe IGBT turn-offs, no longer dc bus is discharged.Realize thus the control to motor braking circuit.
According to brake device for car of the present invention, the automobile brake action postpones short, and the electronic devices and components of brake device for car are few, are difficult for et out of order, is convenient to maintenance.
In the description of this specification sheets, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present invention and aim can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claim and be equal to and limit.
Claims (8)
1. the fender guard of a motor braking circuit, is characterized in that, comprising:
Voltage reduction module, described voltage reduction module is used for the voltage of the dc bus output of described automobile is carried out step-down, wherein, described voltage reduction module comprises brake switch pipe IGBT and the first resistance, the collecting electrode of described brake switch pipe IGBT is connected with the positive pole of the dc bus of described motor braking circuit by the first resistance, and the emitter of described brake switch pipe IGBT is connected with the negative pole of described dc bus;
the clamper module, described clamper module is used for controlling the gate voltage of described brake switch pipe IGBT, wherein, described clamper module comprises the first to second Transient Suppression Diode, wherein, the gate pole of described brake switch pipe IGBT passes through the first Transient Suppression Diode and is connected with the negative pole of described dc bus with the second Transient Suppression Diode of described the first anti-phase series connection of transient diode, wherein, the breakdown reverse voltage of described the first Transient Suppression Diode and described the second Transient Suppression Diode is positioned at the driving signal operating voltage range of described brake switch pipe IGBT,
The step-down control module, described step-down control module is used for controlling the conducting of described brake switch pipe IGBT, wherein, described step-down control module comprises the 3rd Transient Suppression Diode and conducting diode, the negative pole of described the 3rd Transient Suppression Diode is connected with the positive pole of described dc bus and anodal is connected with the gate pole of described brake switch pipe IGBT with the second resistance with described conducting diode series connection by conducting diode
Wherein, the clamper module also comprises the 3rd resistance with described the first to second transient voltage suppressor paralleling.
2. the fender guard of motor braking circuit according to claim 1, is characterized in that, described the first resistance is braking resistor.
3. the fender guard of motor braking circuit according to claim 1; it is characterized in that; one end of described the second resistance is connected with the positive pole of described the 3rd Transient Suppression Diode and the other end is connected with the positive pole of described conducting diode, and the negative pole of described conducting diode is connected with the gate pole of described brake switch pipe IGBT.
4. the fender guard of motor braking circuit according to claim 1; it is characterized in that; the gate pole of described brake switch pipe IGBT is connected with the negative pole of described the first Transient Suppression Diode, and the negative pole of described the second Transient Suppression Diode is connected with the negative pole of described dc bus.
5. the fender guard of motor braking circuit according to claim 1; it is characterized in that; the gate pole of described brake switch pipe IGBT is connected with the positive pole of described the first Transient Suppression Diode, and the positive pole of described the second Transient Suppression Diode is connected with the negative pole of described dc bus.
6. a brake device for car, is characterized in that, comprising:
Alternating current dynamo;
Dc bus;
Inverter, described inverter are connected with described dc bus and the mouth of described inverter is connected with described alternating current dynamo;
Support Capacitor, described Support Capacitor and described inverter parallel; With
The fender guard of motor braking circuit, described fender guard are the fender guard as the described motor braking circuit of claim 1-5 any one, and the fender guard of described motor braking circuit and described inverter and described Support Capacitor are arranged in parallel.
7. brake device for car according to claim 6, is characterized in that, described inverter is three-phase inverter, and the three-phase output end of described three-phase inverter all is connected with described alternating current dynamo.
8. brake device for car according to claim 6, is characterized in that, the breakdown reverse voltage of described the first and second Transient Suppression Diodes is lower than the upper voltage limit of the operating voltage range of the driving signal of the gate pole that is applied to described brake switch pipe IGBT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110370012.XA CN103121409B (en) | 2011-11-18 | 2011-11-18 | Automobile braking circuit protecting device and automobile braking device provided with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110370012.XA CN103121409B (en) | 2011-11-18 | 2011-11-18 | Automobile braking circuit protecting device and automobile braking device provided with the same |
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| Publication Number | Publication Date |
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| CN103121409A true CN103121409A (en) | 2013-05-29 |
| CN103121409B CN103121409B (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110370012.XA Active CN103121409B (en) | 2011-11-18 | 2011-11-18 | Automobile braking circuit protecting device and automobile braking device provided with the same |
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| CN105226732A (en) * | 2015-11-16 | 2016-01-06 | 重庆大学 | The draw-out power supply circuit of cable temperature monitoring device |
| CN105305804A (en) * | 2014-07-22 | 2016-02-03 | 伊顿公司 | Driving protection method and driving protection circuit of T-shaped three-level circuit |
| CN106385189A (en) * | 2016-10-13 | 2017-02-08 | 华南理工大学 | Two-level cascaded multilevel inverter |
| CN106671786A (en) * | 2017-01-17 | 2017-05-17 | 浙江佳佳童车有限公司 | Control circuit of pedal switch of baby carriage |
| CN106712484A (en) * | 2016-12-15 | 2017-05-24 | 宁波央腾汽车电子有限公司 | Backward flowing current absorption circuit under motor load |
| CN110445359A (en) * | 2018-05-03 | 2019-11-12 | 北京北秦安全技术有限公司 | A kind of power circuit of single-phase active arc extinguishing type short-circuit protection |
| CN112737311A (en) * | 2020-12-21 | 2021-04-30 | 中国北方发动机研究所(天津) | Filter circuit |
| CN113938059A (en) * | 2021-09-15 | 2022-01-14 | 荣耀终端有限公司 | Drive control device of brushless motor and related equipment |
| WO2022257227A1 (en) * | 2021-06-08 | 2022-12-15 | 东莞永胜医疗制品有限公司 | Breathing assistance device |
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| CN110445359A (en) * | 2018-05-03 | 2019-11-12 | 北京北秦安全技术有限公司 | A kind of power circuit of single-phase active arc extinguishing type short-circuit protection |
| CN112737311A (en) * | 2020-12-21 | 2021-04-30 | 中国北方发动机研究所(天津) | Filter circuit |
| WO2022257227A1 (en) * | 2021-06-08 | 2022-12-15 | 东莞永胜医疗制品有限公司 | Breathing assistance device |
| CN113938059A (en) * | 2021-09-15 | 2022-01-14 | 荣耀终端有限公司 | Drive control device of brushless motor and related equipment |
| CN113938059B (en) * | 2021-09-15 | 2022-11-15 | 荣耀终端有限公司 | Drive control device of brushless motor and related equipment |
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| CN103121409B (en) | 2015-04-22 |
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