CN103318109A - Controller for electric bicycles and motorcycles - Google Patents
Controller for electric bicycles and motorcycles Download PDFInfo
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- CN103318109A CN103318109A CN2013102812112A CN201310281211A CN103318109A CN 103318109 A CN103318109 A CN 103318109A CN 2013102812112 A CN2013102812112 A CN 2013102812112A CN 201310281211 A CN201310281211 A CN 201310281211A CN 103318109 A CN103318109 A CN 103318109A
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- pulse width
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Abstract
The invention discloses a controller for electric bicycles and motorcycles. The controller comprises a voltage-stabilized power circuit, a PWM (pulse width modulation) generation circuit, a motor drive circuit, a motor overcurrent protection circuit, a battery overdischarge protection circuit, and a battery discharge indicator circuit. The voltage-stabilized power circuit and the PWM generation circuit are connected with each other. The output end of the PWM generation circuit is connected with the input end of the motor drive circuit, the input end of the motor overcurrent protection circuit, the input end of the battery overdischarge protection circuit, and the input end of the battery discharge indicator circuit. The PWM generation circuit comprises a pulse width modulator and a potentiometer. The motor drive circuit comprises a VDMOS transistor and a permanent magnet direct-current brush motor. The battery discharge indicator circuit comprises five LED display lamps and a four-OA (operational amplifier) integrated circuit formed by parallelly connecting four LM324 comparators. The controller for electric bicycles and motorcycles has the functions of battery undervoltage protection, motor overcurrent protection, brake outage, electricity displaying and the like, and is simple in structure and low in cost.
Description
Technical field
The invention discloses a kind of controller for electric vehicle, belong to elec. vehicle control technology field.
Background technology
At present popular Electrical Bicycle, battery-operated motor cycle mostly uses DC machine, and the controller of DC motor speed-regulating is had many types.Controller for electric vehicle can be divided into high-power, middle power, miniwatt three classes with watt level.Electrical Bicycle uses low power, power and high-performance during shipping three-wheel vehicle and electric motor will use.From cooperating motor to divide, can being divided into brush is arranged, brushless two large classes.Brushless controller is restricted by present technology and cost, and damage rate is higher.The controller for electric vehicle core is pulse duration modulation (PWM) device.The common most function singleness of controller for electric vehicle in the prior art, and complex structure is with high costs.
Summary of the invention
Technical matters to be solved by this invention is: for the defective of prior art, provide a kind of controller for electric vehicle.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of controller for electric vehicle comprises that voltage-stabilized power supply circuit, PWM produce circuit, motor-drive circuit, motor overcurrent protection circuit, battery overdischarge protective circuit;
Described voltage-stabilized power supply circuit and PWM produce circuit and are connected, the mouth that PWM produces circuit respectively with motor-drive circuit, motor overcurrent protection circuit, battery overdischarge protective circuit;
PWM produces circuit and comprises pulse width modulator and potential device, and wherein, pulse width modulator is used for the receiver voltage signal and produces corresponding widened pulse; Potential device is used for speed to be regulated, and the input end of potential device is connected with the rotating shaft at electronic handlebar place; Motor-drive circuit comprises VDMOS pipe and permanent-magnet DC brush motor.
Further, also comprise the battery discharging indicating circuit, the input end of described battery discharging indicating circuit is connected with the mouth that PWM produces circuit.
Further, the battery discharging indicating circuit comprises the four high guaily unit integrated circuit that is composed in parallel by four LM324 comparators, 5 LED display lamps.
The control method that described controller for electric vehicle is corresponding is specific as follows:
The low level widened pulse conducting VDMOS pipe that pulse width modulator sends, widened pulse low level part is wider, and VDMOS pipe ON time is longer, and then makes the permanent-magnet DC brush motor rotating speed higher; During pulse width modulator output high level, VDMOS tube grid charge discharging resisting, VDMOS manages cut-off, and motor speed reduces until stop the protection of realization over current of motor;
When battery discharging is too much; aerotron conducting in the battery overdischarge protective circuit, the dead band control port of pulse width modulator is received voltage signal, the inner widened pulse delivery pipe cut-off of pulse width modulator; thereby battery discharging is stopped, realizing the battery overdischarge protection.
The present invention adopts above technical scheme compared with prior art, has following technique effect: a kind of controller for electric vehicle disclosed by the invention has the functions such as storage battery under-voltage protection, over current of motor protection, brake outage, electric weight demonstration.Simultaneously the present invention is simple in structure, with low cost.
Description of drawings
Fig. 1 is circuit module schematic diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is described in further detail:
Circuit module schematic diagram of the present invention as shown in Figure 1, a kind of controller for electric vehicle is characterized in that: comprise that voltage-stabilized power supply circuit, PWM produce circuit, motor-drive circuit, motor overcurrent protection circuit, battery overdischarge protective circuit, battery discharging indicating circuit;
Described voltage-stabilized power supply circuit produces circuit with PWM and is connected, and the mouth that PWM produces circuit is connected with the input end of motor-drive circuit, motor overcurrent protection circuit, battery overdischarge protective circuit, battery discharging indicating circuit respectively;
PWM produces circuit and comprises pulse width modulator and potential device; Motor-drive circuit comprises VDMOS pipe and permanent-magnet DC brush motor; The battery discharging indicating circuit comprises the four high guaily unit integrated circuit that is composed in parallel by four LM324 comparators, 5 LED display lamps;
Pulse width modulator receiver voltage signal produces corresponding widened pulse, and the low level part of the lower widened pulse of voltage is wider, and motor speed is higher; Potential device is used for speed to be regulated, and the input end of potential device is connected with the rotating shaft at electronic handlebar place;
The low level widened pulse conducting VDMOS pipe that pulse width modulator sends, widened pulse low level part is wider, and VDMOS pipe ON time is longer, and then makes the permanent-magnet DC brush motor rotating speed higher; During pulse width modulator output high level, VDMOS tube grid charge discharging resisting, VDMOS manages cut-off, and motor speed reduces until stop the protection of realization over current of motor;
When battery discharging is too much; aerotron conducting in the battery overdischarge protective circuit, the dead band control port of pulse width modulator is received voltage signal, the inner widened pulse delivery pipe cut-off of pulse width modulator; thereby battery discharging is stopped, realizing the battery overdischarge protection.
Claims (3)
1. a controller for electric vehicle is characterized in that: comprise that voltage-stabilized power supply circuit, PWM produce circuit, motor-drive circuit, motor overcurrent protection circuit, battery overdischarge protective circuit;
Described voltage-stabilized power supply circuit and PWM produce circuit and are connected, the mouth that PWM produces circuit respectively with motor-drive circuit, motor overcurrent protection circuit, battery overdischarge protective circuit;
PWM produces circuit and comprises pulse width modulator and potential device, and wherein, pulse width modulator is used for the receiver voltage signal and produces corresponding widened pulse; Potential device is used for speed to be regulated, and the input end of potential device is connected with the rotating shaft at electronic handlebar place; Motor-drive circuit comprises VDMOS pipe and permanent-magnet DC brush motor;
The low level widened pulse conducting VDMOS pipe that pulse width modulator sends, widened pulse low level part is wider, and VDMOS pipe ON time is longer, and then makes the permanent-magnet DC brush motor rotating speed higher; During pulse width modulator output high level, VDMOS tube grid charge discharging resisting, VDMOS manages cut-off, and motor speed reduces until stop the protection of realization over current of motor;
When battery discharging is too much; aerotron conducting in the battery overdischarge protective circuit, the dead band control port of pulse width modulator is received voltage signal, the inner widened pulse delivery pipe cut-off of pulse width modulator; thereby battery discharging is stopped, realizing the battery overdischarge protection.
2. a kind of controller for electric vehicle as claimed in claim 1 is characterized in that: also comprise the battery discharging indicating circuit, the input end of described battery discharging indicating circuit is connected with the mouth that PWM produces circuit.
3. a kind of controller for electric vehicle as claimed in claim 1, it is characterized in that: the battery discharging indicating circuit comprises the four high guaily unit integrated circuit that is composed in parallel by four LM324 comparators, 5 LED display lamps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102812112A CN103318109A (en) | 2013-07-05 | 2013-07-05 | Controller for electric bicycles and motorcycles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102812112A CN103318109A (en) | 2013-07-05 | 2013-07-05 | Controller for electric bicycles and motorcycles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103318109A true CN103318109A (en) | 2013-09-25 |
Family
ID=49187258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102812112A Withdrawn CN103318109A (en) | 2013-07-05 | 2013-07-05 | Controller for electric bicycles and motorcycles |
Country Status (1)
| Country | Link |
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| CN (1) | CN103318109A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110710827A (en) * | 2019-10-18 | 2020-01-21 | 曾繁宇 | Control circuit of baby crib for obstetrics and gynecology department |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07212905A (en) * | 1994-01-18 | 1995-08-11 | Yamaha Motor Co Ltd | Electric bicycle battery device |
| CN101166011A (en) * | 2006-10-19 | 2008-04-23 | 天津市松正半导体技术有限公司 | Trolley motor control circuit |
| CN201198281Y (en) * | 2008-04-24 | 2009-02-25 | 天津市松正电动科技有限公司 | Controller for electric vehicle |
| CN101791969A (en) * | 2010-02-11 | 2010-08-04 | 天津市松正电动科技有限公司 | Electric control car controller |
-
2013
- 2013-07-05 CN CN2013102812112A patent/CN103318109A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07212905A (en) * | 1994-01-18 | 1995-08-11 | Yamaha Motor Co Ltd | Electric bicycle battery device |
| CN101166011A (en) * | 2006-10-19 | 2008-04-23 | 天津市松正半导体技术有限公司 | Trolley motor control circuit |
| CN201198281Y (en) * | 2008-04-24 | 2009-02-25 | 天津市松正电动科技有限公司 | Controller for electric vehicle |
| CN101791969A (en) * | 2010-02-11 | 2010-08-04 | 天津市松正电动科技有限公司 | Electric control car controller |
Non-Patent Citations (1)
| Title |
|---|
| 吴文琳等: "《怎样读电动自行车电路图》", 31 January 2009, article "电动自行车控制器电路图的识读方法", pages: 26-33 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110710827A (en) * | 2019-10-18 | 2020-01-21 | 曾繁宇 | Control circuit of baby crib for obstetrics and gynecology department |
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| PB01 | Publication | ||
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| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20130925 |