CN2857332Y - Smart control circuit of electrical eddy current speed reducer - Google Patents
Smart control circuit of electrical eddy current speed reducer Download PDFInfo
- Publication number
- CN2857332Y CN2857332Y CN 200520117115 CN200520117115U CN2857332Y CN 2857332 Y CN2857332 Y CN 2857332Y CN 200520117115 CN200520117115 CN 200520117115 CN 200520117115 U CN200520117115 U CN 200520117115U CN 2857332 Y CN2857332 Y CN 2857332Y
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Abstract
The utility model discloses an intelligent control circuit of the eddy current retarder. When the speed sensor signal is weak while the interference signal is strong, the intelligent control circuit added on the eddy current retarder will filter the interference signal and amplify the valid signal to output; when the speed sensor signal is strong, the circuit will add clip limit on the signal intensity before output. This way the circuit can adapt to all sensors with different wheel speeds, thus the circuit has a favorable adaptability to sensor signals, and adapts to a wide application range of speed signals; besides, this circuit have many protection functions including over load protection, current limitation, over-voltage protection, over-heat protection, short-circuit protection etc. The circuit can be shut off automatically under ultra-low speed or during stop. The circuit is of simple structure with high reliability.
Description
[technical field]
The utility model relates to the auxiliary braking control system of motor vehicles, relates in particular to the control of the current vortex retarder of motor vehicles.
[background technology]
Current vortex retarder is a kind of efficient automobile brake auxiliary device, when it both can make automobile travel in the ramp, carry out slow and constant speed drive easily, also can be under the relatively poor situation of highway or road conditions, in time carry out slowly fail safe and comfortableness in the time of therefore can greatly improving running car like a cork.
The retarder that uses has two kinds of forms at present, a kind of is to utilize the pressure of liquid to realize, be called " Retarder ", Retarder exists complex structure, many shortcomings such as difficult in maintenance, another kind is " current vortex retarder ", compares Retarder, it is simple in structure, and is easy to maintenance.
Present current vortex retarder adopts contact relay control mode (as TELMA of France etc.) mostly, because the frequent adhesive of relay, contact endurance is lower, and braking force even regulation continuously, its control is output as limited several gears, is generally 4 grades or 6 grades, this just causes controlling retarder excitation winding current is that phase step type changes, braking moment also is that rank road formula changes, and when retarder worked, the driver can feel that driving comfort is relatively poor.
There is only a few retarder manufacturer to adopt pulsewidth to adjust mode at present, can makes to produce continuously adjustable exciting current in the excitation winding, reach the continuous adjustable mode of braking moment.Specific implementation is: the slow system of current vortex mainly is made up of automatically controlled part, power model, magnet exciting coil and rotor.The size that electric control part divides braking shift signal and the feedback speed signal according to the driver to calculate suitable braking force, and the conducting of power controlling module, offer the magnet exciting coil suitable current by power model, to produce magnetic field, and in the middle of rotor, forming eddy current, the size of this eddy current is directly proportional with the rotary speed of rotor.The magnetic field that eddy current forms produces a torque identical with the rotor direction of rotation, and owing to the relation of action and reaction, rotor then produces a torque with own direction of rotation, and this torque is the function of rotor speed and stator field electric current.The size of magnetic flux and the number of turn of magnet exciting coil and the exciting current size of being passed through are relevant.Rotor is installed in the two ends of power transmission shaft, is equivalent to apply a brake drag square to the rotation of power transmission shaft, reaches the effect of deceleration.The required electric current of retarder is directly supplied with by automobile storage battery.Still exist in this way functions such as speed sensor signal bad adaptability, defencive function are incomplete, close automatically in the time of can not and stopping at utmost point low speed but make.
So; how on current vortex retarder, to adopt the most effective intelligence control circuit, can either realize the adjustable continuously of braking moment, again can be good to speed sensor signal adaptability; defencive function is complete, closes the important topic that becomes our research automatically at utmost point low speed with when stopping.
[summary of the invention]
The purpose of this utility model solves the problems of the prior art exactly; propose a kind ofly can either realize the adjustable continuously of braking moment; again can be good to speed sensor signal adaptability, defencive function is complete, the current vortex retarder intelligence control circuit of closing automatically at utmost point low speed with when stopping.
For achieving the above object; the utility model proposes a kind of current vortex retarder intelligence control circuit; comprise wheel speed sensors signal processing circuit, little processing protection control unit and circuit for regulating and controlling; after handling wheel speed signal, described wheel speed sensors signal processing circuit outputs to little processing protection control unit; described little processing outputs to circuit for regulating and controlling, the output of described circuit for regulating and controlling control signal and shutoff after protecting control unit to the signal processing conversion.
Further, described wheel speed sensors signal processing circuit comprises first resistance, second resistance, first electric capacity, first diode, second diode and first integration module; One end of described first resistance and the output of receiving the wheel speed sensors signal after an end of first electric capacity links to each other; one end of the negative pole of the positive pole of first diode, second diode, second resistance and the other end that is connected to first resistance after the positive input terminal of first integration module links to each other; the equal ground connection of negative input end of anodal and first integration module of the negative pole of the other end of first electric capacity, first diode, second diode, the other end of second resistance with output to little processing after the output of first integration module links to each other and protect control unit.
Further, described first integration module is MC33201.
Further, described circuit for regulating and controlling comprises second integration module, the 3rd resistance, the 4th resistance, second electric capacity, the 3rd diode, the 4th diode, the 5th diode, first triode, second triode and first inductance; The negative pole of described the 3rd diode and the input of receiving second integration module after the collector electrode of first triode links to each other; the base stage of described first triode; the collector electrode of second triode; one end of second electric capacity links to each other with an end of the 3rd resistance; the other end of the 3rd resistance is connected to the output of little processing protection control unit; the base stage of second triode; the negative pole of the 4th diode; one end of the 4th resistance and the feedback end of second integration module; one end of first inductance and the output that is connected to second integration module after the negative pole of the 5th diode links to each other, the positive pole of the 3rd diode; the emitter of first triode; the other end of second electric capacity; the emitter of second triode; the positive pole of the 4th diode; the other end of the 4th resistance; the other end of first inductance; anodal all ground connection of the 5th diode.
Further, described second integration module is 550P.
Further, described first triode is a NPN type triode, and second triode is a NPN type triode.
The beneficial effects of the utility model: the utility model discloses a kind of current vortex retarder intelligence control circuit, on current vortex retarder, add an intelligence control circuit, when the weak output signal of velocity transducer and dried antinoise signal are strong, to after the dried antinoise signal filtering useful signal be amplified output, when speed sensor signal is strong, signal strength signal intensity is carried out clamper restriction output again, so just go for the transducer of all different wheel speeds, good to sensor signal adaptability, to the wide accommodation of rate signal; Defencive function is many, has multifunction protections such as overload protection, electric current restriction, overvoltage protection, overtemperature protection, short-circuit protection, can close automatically at utmost point low speed with when stopping; Circuit structure is simple, the reliability height.
Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is the structural representation of current vortex retarder intelligence control circuit;
Fig. 2 is the circuit diagram of wheel speed sensors signal processing circuit in the current vortex retarder intelligence control circuit;
Fig. 3 is the logic diagram of little processing protection control unit in the current vortex retarder intelligence control circuit;
Fig. 4 is the circuit diagram of circuit for regulating and controlling in the current vortex retarder intelligence control circuit.
[embodiment]
Be illustrated in figure 1 as the structural representation of current vortex retarder intelligence control circuit.Comprise wheel speed sensors signal processing circuit 1, little processing protection control unit 2 and circuit for regulating and controlling 3; output to little processing protection control unit 2 after 1 pair of wheel speed signal of described wheel speed sensors signal processing circuit is handled, output to the output and the shutoff of circuit for regulating and controlling 3 described circuit for regulating and controlling 3 control signals after 2 pairs of signal processing conversion of described little processing protection control unit.
Be illustrated in figure 2 as the circuit diagram of wheel speed sensors signal processing circuit in the current vortex retarder intelligence control circuit.Described wheel speed sensors signal processing circuit 1 comprises first resistance R 1, second resistance R 2, first capacitor C 1, the first diode D1, the second diode D2 and the first integration module IC1; One end of described first resistance R 1 and the output of receiving the wheel speed sensors signal after an end of first capacitor C 1 links to each other; the positive pole of the first diode D1; the negative pole of the second diode D2; one end of second resistance R 2 and the other end that is connected to first resistance R 1 after the positive input terminal of the first integration module IC1 links to each other; the other end of first capacitor C 1; the negative pole of the first diode D1; the equal ground connection of negative input end of the anodal and first integration module IC1 of the second diode D2, the other end of second resistance R 2 with output to little processing after the output of the first integration module IC1 links to each other and protect control unit 2.The described first integration module IC1 adopts MC33201.When the weak output signal of velocity transducer and dried antinoise signal are strong; by first capacitor C 1 and first resistance R 1 with dried antinoise signal filtering with after first resistance R 1; the amplifying circuit that second resistance R 2 and the first integration module IC1 form effectively amplifies; output to the interface of little processing protection control unit 2 again; when speed sensor signal is strong; by first resistance R 1; the first diode D1 and the second diode D2 play the restriction clamping action with after first resistance R 1; the amplifying circuit that second resistance R 2 and the first integration module IC1 form effectively amplifies, and outputs to the interface of little processing protection control unit 2 again.
Be illustrated in figure 3 as the logic diagram of little processing protection control unit in the current vortex retarder intelligence control circuit.A plurality of function and protectings such as overload protection, electric current restriction, overvoltage protection, overtemperature protection, short-circuit protection are provided, and a protection output port IS is provided.
Be illustrated in figure 4 as the circuit diagram of circuit for regulating and controlling in the current vortex retarder intelligence control circuit.Described circuit for regulating and controlling 3 comprises the second integration module IC2, the 3rd resistance R 3, the 4th resistance R 4, second capacitor C 2, the 3rd diode D3, the 4th diode D4, the 5th diode D5, the first triode T1, the second triode T2 and first inductance L 1; The negative pole of described the 3rd diode D3 and the input of receiving the second integration module IC2 after the collector electrode of the first triode T1 links to each other; the base stage of the described first triode T1; the collector electrode of the second triode T2; one end of second capacitor C 2 links to each other with an end of the 3rd resistance R 3; the other end of the 3rd resistance R 3 is connected to the output of little processing protection control unit 2; the base stage of the second triode T2; the negative pole of the 4th diode D4; one end of the 4th resistance R 4 and the feedback end of the second integration module IC2; one end of first inductance L 1 and the output that is connected to the second integration module IC2 after the negative pole of the 5th diode D5 links to each other, the positive pole of the 3rd diode D3; the emitter of the first triode T1; the other end of second capacitor C 2; the emitter of the second triode T2; the positive pole of the 4th diode D4; the other end of the 4th resistance R 4; the other end of first inductance L 1; anodal all ground connection of the 5th diode D5.The described second integration module IC2 is an intelligent switch, adopts 550P.The described first triode T1 adopts NPN type triode, and the second triode T2 adopts NPN type triode.When the protection in little processing protection control unit 2 produces; by the 3rd diode D3, the 4th diode D4, second capacitor C 2, the first triode T1, the second triode T2, the 4th resistance R 4; the driving executive circuit of winding is controlled the input of the second integration module IC2; its output is turn-offed, reach the purpose of protection.
Claims (6)
1. current vortex retarder intelligence control circuit; it is characterized in that: comprise wheel speed sensors signal processing circuit (1), little processing protection control unit (2) and circuit for regulating and controlling (3); after handling wheel speed signal, described wheel speed sensors signal processing circuit (1) outputs to little processing protection control unit (2); described little processing outputs to circuit for regulating and controlling (3), the output and the shutoff of described circuit for regulating and controlling (3) control signal after protecting control unit (2) to the signal processing conversion.
2. current vortex retarder intelligence control circuit as claimed in claim 1 is characterized in that: described wheel speed sensors signal processing circuit (1) comprises first resistance (R1), second resistance (R2), first electric capacity (C1), first diode (D1), second diode (D2) and first integration module (IC1); One end of described first resistance (R1) and the output of receiving the wheel speed sensors signal after an end of first electric capacity (C1) links to each other; the positive pole of first diode (D1); the negative pole of second diode (D2); one end of second resistance (R2) and the other end that is connected to first resistance (R1) after the positive input terminal of first integration module (IC1) links to each other; the other end of first electric capacity (C1); the negative pole of first diode (D1); the equal ground connection of negative input end of anodal and first integration module (IC1) of second diode (D2), the other end of second resistance (R2) with output to little processing after the output of first integration module (IC1) links to each other and protect control unit (2).
3. current vortex retarder intelligence control circuit as claimed in claim 2 is characterized in that: described first integration module (IC1) is MC33201.
4. as claim 1 or 2 or 3 described current vortex retarder intelligence control circuits, it is characterized in that: described circuit for regulating and controlling (3) comprises second integration module (IC2), the 3rd resistance (R3), the 4th resistance (R4), second electric capacity (C2), the 3rd diode (D3), the 4th diode (D4), the 5th diode (D5), first triode (T1), second triode (T2) and first inductance (L1); The negative pole of described the 3rd diode (D3) and the input of receiving second integration module (IC2) after the collector electrode of first triode (T1) links to each other; the base stage of described first triode (T1); the collector electrode of second triode (T2); one end of second electric capacity (C2) links to each other with an end of the 3rd resistance (R3); the other end of the 3rd resistance (R3) is connected to the output of little processing protection control unit (2); the base stage of second triode (T2); the negative pole of the 4th diode (D4); the feedback end of one end of the 4th resistance (R4) and second integration module (IC2); one end of first inductance (L1) and the output that is connected to second integration module (IC2) after the negative pole of the 5th diode (D5) links to each other, the positive pole of the 3rd diode (D3); the emitter of first triode (T1); the other end of second electric capacity (C2); the emitter of second triode (T2); the positive pole of the 4th diode (D4); the other end of the 4th resistance (R4); the other end of first inductance (L1); anodal all ground connection of the 5th diode (D5).
5. current vortex retarder intelligence control circuit as claimed in claim 4 is characterized in that: described second integration module (IC2) is 550P.
6. current vortex retarder intelligence control circuit as claimed in claim 4 is characterized in that: described first triode (T1) is a NPN type triode, and second triode (T2) is a NPN type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520117115 CN2857332Y (en) | 2005-12-09 | 2005-12-09 | Smart control circuit of electrical eddy current speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520117115 CN2857332Y (en) | 2005-12-09 | 2005-12-09 | Smart control circuit of electrical eddy current speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2857332Y true CN2857332Y (en) | 2007-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520117115 Expired - Lifetime CN2857332Y (en) | 2005-12-09 | 2005-12-09 | Smart control circuit of electrical eddy current speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2857332Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467553A (en) * | 2014-11-28 | 2015-03-25 | 湘潭大学 | Large equipment motor emergency brake protection device and method |
-
2005
- 2005-12-09 CN CN 200520117115 patent/CN2857332Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467553A (en) * | 2014-11-28 | 2015-03-25 | 湘潭大学 | Large equipment motor emergency brake protection device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG WANAN SCIENCE & TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WANAN GROUP CO., LTD. Effective date: 20080425 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080425 Address after: Zhuji City, Zhejiang Province town of Wan An science and Technology Park, zip code: 311835 Patentee after: Zhejiang VIE Science & Technology Co., Ltd. Address before: Zhuji City, Zhejiang Province town of Wan An science and Technology Park, zip code: 311835 Patentee before: Wanan Group Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081205 Address after: No. 8, building 1, Tsinghua Science and technology building, No. 100084, East Zhongguancun Road, Beijing, Haidian District, 702, postcode: C Patentee after: Beijing Jinwan'an Automobile Electronic Technology Research Co., Ltd. Address before: Zhuji City, Zhejiang Province town of Wan An science and Technology Park, zip code: 311835 Patentee before: Zhejiang VIE Science & Technology Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: BEIJING JINWANAN CAR ELECTRONIC TECHNOLOGY YANFA C Free format text: FORMER OWNER: ZHEJIANG PROVINCE WANAN SCIENCE AND TECHNOLOGY CO., LTD. Effective date: 20081205 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070110 |
|
| EXPY | Termination of patent right or utility model |