CN203104361U - A motor driving circuit used for an AMT controller - Google Patents
A motor driving circuit used for an AMT controller Download PDFInfo
- Publication number
- CN203104361U CN203104361U CN2012207470697U CN201220747069U CN203104361U CN 203104361 U CN203104361 U CN 203104361U CN 2012207470697 U CN2012207470697 U CN 2012207470697U CN 201220747069 U CN201220747069 U CN 201220747069U CN 203104361 U CN203104361 U CN 203104361U
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- motor
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- drive circuit
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Abstract
The utility model discloses a motor driving circuit used for an AMT controller. The motor driving circuit is characterized in that in the driving circuit, a motor power supplying unit is connected with a motor driving unit in order to drive a motor to operate, that the motor driving unit comprises two half-bridge driving chips integrating high-edge switches and low-edge switches and a logic processing circuit, and that the logic processing circuit converts a control signal outputted from a control chip into a signal driving a half bridge in order to control the conduction of the high-edge switches or the low-edge switches in the half-bridge chips and further control the forward rotation, backward rotation, and brake of the motor. The motor driving circuit achieves control of the operating state and the rotating speed changes of the motor by using a simplified circuit structure.
Description
Technical field
The utility model relates to electric control mechanical type automatic speed variator, particularly a kind of motor-drive circuit that is used for the AMT controller.
Background technology
Electric control mechanical type automatic speed variator (Automated Mechanical Transmission is called for short AMT) is under the constant situation of original mechanical transmission basic structure, by installing AMT controller control shifter additional, replace clutch separation that former cause driver finishes and combine, pluck shelves and put into gear and the operations such as synchronization adjusting of engine, finally realize fluid drive.For the AMT controller, motor-drive circuit directly influences the stability and the reliability of speed changer, and therefore a perfect motor-drive circuit is the important leverage that realizes gear shift comfortableness, ride comfort.
But, do not obtain ripe the application as yet at the AMT product of present AMT product, especially domestic production of the prior art.As indispensable part in the AMT controller, the motor-drive circuit design generally adopts discrete component to form the form of H bridge.Yet AMT need realize the control to gear selecting, gear shift, clutch No. three motors, if adopt discrete component, need select 12 MOSFET for use.And as safety member, in the AMT controller, it is particularly important that the electrical fault status detection also seems, the shared space of existing drive circuit discrete component is bigger, is unfavorable for layout and cabling; And directly control No. three motors, the operating state of wayward motor and rotation speed change by PWM.
At above-mentioned problem, a kind of novel motor-drive circuit is provided, realize control with the circuit structure of comparatively simplifying to the operating state and the rotation speed change of motor.
The utility model content
Technical problem to be solved in the utility model is, a kind of motor-drive circuit of the AMT of being used for controller is provided, and with the circuit structure of comparatively simplifying, realizes the control to the operating state and the rotation speed change of motor.
For achieving the above object, the technical solution of the utility model is that a kind of motor-drive circuit that is used for the AMT controller is characterized in that: described drive circuit connects the work of electric-motor drive unit drive motors for the motor power supply unit; Described electric-motor drive unit is made up of two half-bridge driven chip and logic processing circuits that are integrated with flash switch and lower edge switch, the control signal of control chip output is converted to the signal of driving half-bridge by logic processing circuit, control flash switch or lower edge switch conducting in the described half-bridge chip, and then just commentaries on classics, counter-rotating, the braking of control motor.
Described electric-motor drive unit is connected with the electrical fault detecting unit.
Described electrical fault detecting unit through physical connection to the output of motor-drive circuit, the voltage by detecting output or the short circuit of current detecting motor, open circuit, over current fault.
Described half-bridge driven chip is provided with enable pin, and when enable pin was invalid, which kind of state no matter controls pin was, the flash switch of half-bridge driven chip internal and all not conductings of lower edge switch.
Described logic processing circuit is provided with two-way motor status control input and one road PWM control input, and the operating state of importing the control motor by the two-way State Control is just to change, reverse or brake.Simultaneously when the operating state of motor be when rotating and reverse, can control the speed of motor by PWM control input, the big more motor speed of PWM duty ratio is fast more.
Described motor power supply unit comprises motor power supply circuits and power sense circuit.
A kind of motor-drive circuit that is used for the AMT controller, owing to adopt above-mentioned structure, advantage of the present utility model is: 1, the motor-drive circuit of the utility model employing, only need select for use 6 half-bridge driven chips to form the H bridge and drive No. three motors, simplified circuit design greatly, save the arrangement space of whole AMT controller PCB plate, be easy to debugging, stable performance; 2, the utility model adopts the mode of logic processing circuit and the common control of half-bridge driven chip, is easy to control the operating state and the rotation speed change of motor; 3, the half-bridge driven chip selected for use of the utility model, but the failure condition before and after the complete detection motor action.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail;
Fig. 1 is a kind of motor-drive circuit structural representation block diagram that is used for the AMT controller of the utility model;
Fig. 2 is a kind of motor-drive circuit electric-motor drive unit structural representation block diagram that is used for the AMT controller of the utility model
Among Fig. 1 and Fig. 2,1, the motor power supply unit; 2, electric-motor drive unit; 3, electrical fault detecting unit; 4, motor; 5, half-bridge driven chip; 6, logic processing circuit.
Embodiment
The utility model improves the electric-control system integrated level, strengthen effective control to the motor rotation state, improve electrical fault detects.
As shown in Figure 1 and Figure 2, the utility model comprises motor power supply unit 1, electric-motor drive unit 2, electrical fault detecting unit 3.Wherein, motor power supply unit 1 provides working power and power supply reverse connecting protection for whole motor-drive circuit; Electric-motor drive unit 2 is made up of the half-bridge driven chip 5 and the logic processing circuit 6 of two integrated flash switches and lower edge switch, the control signal of control chip output is converted to the signal of driving half-bridge by logic processing circuit 6, flash switch or lower edge switch conducting in the control half-bridge driven chip 5, and then just commentaries on classics, counter-rotating, the braking of control motor 4; Electrical fault detecting unit 3 is connected to through physical connection on the output of motor-drive circuit, the voltage by detecting output or the short circuit of current detecting motor, open circuit, over current fault.
Motor power supply unit 1 comprises motor power supply circuits and power sense circuit.Wherein, the motor power supply circuits are respectively electric-motor drive unit, the electrical fault detecting unit provides working power and power supply reverse connecting protection; Power sense circuit is used to detect the supply power voltage of power supply, when supply power voltage not in normal range of operation, by the enable pin disable motor drive circuit of circuit for controlling motor.
Electric-motor drive unit 2 comprises H bridge drive circuit and the logic processing circuit 6 that two integrated half-bridge driven chips 5 are formed.Wherein, half-bridge driven chip 5 also has enable pin except that the control pin with the inner flash switch of control and lower edge switch work.When enable pin was invalid, which kind of state no matter controls pin was, the flash switch of described half-bridge driven chip internal and all not conductings of lower edge switch.Logic processing circuit 6 has two-way motor status control input and one road PWM control input.Operating state by two-way State Control input control motor 4 is just to change, reverse or brake.Simultaneously when the operating state of motor 4 be when rotating and reverse, can control the speed of motor by PWM control input, the big more motor speed of PWM duty ratio is fast more.
Electrical fault detecting unit 3 comprises voltage detecting circuit and current detection circuit, is used to detect the malfunction of motor action front and back.When motor 4 is failure to actuate, by voltage detecting circuit and on draw control circuit detect drive circuit whether have open circuit, to power supply short circuit, shorted to earth fault.Whether when motor 4 actions, detecting motor by current detection circuit has overcurrent or short trouble.
The utility model provides working power by motor power supply unit 1 to whole motor-drive circuit.When supply power voltage not in normal range of operation, by the enable pin disable motor drive circuit of half-bridge driven chip 5.Behind system's normal power supply, begin to enter duty cycle.Described State Control input a, State Control input b and PWM control input are through logic processing circuit 6, control the enable pin and the control pin of described half-bridge driven chip 5, determine the conducting situation of described half-bridge driven chip 5 inner flash switches and lower edge switch, and then the operating state and the rotation speed change of control motor.But the fault state before and after 4 actions of electrical fault detecting unit 3 complete detection motors.If after motor 4 actions, detect electrical fault, stop motor 4 actions immediately, and fault message is fed back to single-chip microcomputer, after single-chip microcomputer is confirmed fault, the record trouble sign indicating number.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted technical solutions of the utility model to carry out; or directly apply to other occasion without improvement, all within protection range of the present utility model.
Claims (6)
1. motor-drive circuit that is used for the AMT controller is characterized in that: described drive circuit is that motor power supply unit (1) connects electric-motor drive unit (2) drive motors (4) work; Described electric-motor drive unit (2) is made up of two half-bridge driven chip (5) and logic processing circuits (6) that are integrated with flash switch and lower edge switch, the control signal of control chip output is converted to the signal of driving half-bridge by logic processing circuit (6), control flash switch or lower edge switch conducting in the described half-bridge chip, and then just commentaries on classics, counter-rotating, the braking of control motor (4).
2. a kind of motor-drive circuit that is used for the AMT controller according to claim 1 is characterized in that: described electric-motor drive unit (2) is connected with electrical fault detecting unit (3).
3. a kind of motor-drive circuit that is used for the AMT controller according to claim 2, it is characterized in that: described electrical fault detecting unit (3) through physical connection to the output of motor-drive circuit, the voltage by detecting output or the short circuit of current detecting motor, open circuit, over current fault.
4. a kind of motor-drive circuit that is used for the AMT controller according to claim 1, it is characterized in that: described half-bridge driven chip (5) is provided with enable pin, when enable pin is invalid, which kind of state no matter controls pin is, flash switch and all not conductings of lower edge switch that half-bridge driven chip (5) is inner.
5. a kind of motor-drive circuit that is used for the AMT controller according to claim 1, it is characterized in that: described logic processing circuit (6) is provided with two-way motor status control input and one road PWM control input, and the operating state of importing the control motor by the two-way State Control is just to change, reverse or brake; Simultaneously when the operating state of motor be when rotating and reverse, can control the speed of motor by PWM control input, the big more motor speed of PWM duty ratio is fast more.
6. a kind of motor-drive circuit that is used for the AMT controller according to claim 1 is characterized in that: described motor power supply unit (1) comprises motor power supply circuits and power sense circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207470697U CN203104361U (en) | 2012-12-29 | 2012-12-29 | A motor driving circuit used for an AMT controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207470697U CN203104361U (en) | 2012-12-29 | 2012-12-29 | A motor driving circuit used for an AMT controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203104361U true CN203104361U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207470697U Expired - Fee Related CN203104361U (en) | 2012-12-29 | 2012-12-29 | A motor driving circuit used for an AMT controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203104361U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066919A (en) * | 2012-12-29 | 2013-04-24 | 芜湖伯特利汽车安全系统有限公司 | Motor drive circuit for automated mechanical transmission (AMT) controller |
| CN104638613A (en) * | 2013-11-12 | 2015-05-20 | 重庆金美通信有限责任公司 | Design for protecting power supply short circuit through motor |
-
2012
- 2012-12-29 CN CN2012207470697U patent/CN203104361U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066919A (en) * | 2012-12-29 | 2013-04-24 | 芜湖伯特利汽车安全系统有限公司 | Motor drive circuit for automated mechanical transmission (AMT) controller |
| CN104638613A (en) * | 2013-11-12 | 2015-05-20 | 重庆金美通信有限责任公司 | Design for protecting power supply short circuit through motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20151229 |
|
| EXPY | Termination of patent right or utility model |