CN202004712U - Speed regulation device for motor of electric vehicle - Google Patents
Speed regulation device for motor of electric vehicle Download PDFInfo
- Publication number
- CN202004712U CN202004712U CN2011201128042U CN201120112804U CN202004712U CN 202004712 U CN202004712 U CN 202004712U CN 2011201128042 U CN2011201128042 U CN 2011201128042U CN 201120112804 U CN201120112804 U CN 201120112804U CN 202004712 U CN202004712 U CN 202004712U
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Abstract
The utility model relates to electrical control devices, in particular to a speed regulation device for a motor of an electric vehicle (including an electric scooter and an electro-tricycle). The speed regulation device for the motor of the electric vehicle is arranged inside a casing of the electric vehicle. A speed potentiometer module is in series connection to a pulse-width modulation (PWM) module in output mode. The PWM module is in series connection to a motor driving module in output mode. The motor driving module is connected to a direct current (DC) motor of the electric vehicle in driving mode. By means of a PWM method, effective voltage of the motor is adjusted to adjust rotating speed of the motor and control speed of the vehicle, therefore electric energy of a storage battery is saved. Preferably, an integrating circuit module is further connected between the speed potentiometer module and the PWM module, thereby enabling the speed regulation to be uniform.
Description
Technical field
The utility model relates to electronic-controlled installation, relates in particular to a kind of electric motor car motor speed control device of (containing Electric Scooter, electro-tricycle).
Background technology
The drive motors of electric motor car (containing Electric Scooter, electro-tricycle) is to adopt direct current machine.By the fundamental equation of DC motor as can be known, during the electric motor car starting, because rotating speed is zero, its back-emf E also is zero.Because the armature winding resistance of direct current machine is very little, if this moment rated voltage directly is added in the armature two ends, its starting current often substantially exceeds motor and allows electric current, and the useful life of direct current machine in serious threat; So the starting of general dc micro-motor, the variable resistance of in armature circuit, connecting often, during actuating motor, resistance is descending, makes motor at the uniform velocity start acceleration.But it is in the electric motor car of main energy sources that this way is used in by storage battery, obviously is irrational, and this will have influence on the once charging useful life of electric motor car greatly.
Summary of the invention
Therefore, the purpose of this utility model is to propose a kind of motor speed control device that can not consume unnecessary electric energy, be fit to electric motor car.
The technical solution of the utility model is:
The motor speed control device of electric motor car is installed in the shell of electric motor car, specifically: the output of speed-regulating potentiometer module is series at the PWM module, and the output of PWM module is series at motor drive module, and motor drive module drives the direct current machine that is connected in electric motor car.Adopt the PWM mode to regulate the motor effective voltage and regulate motor speed and regulate and control the speed of a motor vehicle, can not waste the electric energy of storage battery.
Preferably, also be connected to the integrating circuit module between described speed-regulating potentiometer module and the PWM module.The integrating circuit module is inserted between speed-regulating potentiometer module and PWM module, can make speed governing comparatively even.
Preferred, described integrating circuit module is an integrating circuit module series connection quadratic integral circuit module.The integrating circuit module of an integrating circuit module series connection quadratic integral circuit module is inserted between speed-regulating potentiometer module and PWM module, can make speed governing more even.
The utility model adopts as above technical scheme, can realize the regulation and control of electric vehicle motor rotating speed under the prerequisite that does not consume the unnecessary electric energy of storage battery in the electric motor car, thereby realize speed of a motor vehicle regulation and control, is fit to electric motor car (containing Electric Scooter, electro-tricycle) and uses.And between speed-regulating potentiometer module and PWM module, also be connected to the integrating circuit module, can realize the even of speed governing, avoid the electric motor car starting current excessive, injury storage battery, rotating speed kick, the uncomfortable drawback of riding.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model embodiment 1;
Fig. 2 is the circuit block diagram of the utility model embodiment 2;
Fig. 3 is the circuit block diagram of the utility model embodiment 3.
Embodiment
Now with embodiment the utility model is further specified in conjunction with the accompanying drawings.
Embodiment 1:
The motor speed control device of electric motor car is installed in the shell of electric motor car, specifically: 1 output of speed-regulating potentiometer module is series at PWM module 2, and 2 outputs of PWM module are series at motor drive module 3, and motor drive module 3 drives the direct current machine that is connected in electric motor car.Adopt the PWM mode to regulate the motor effective voltage and regulate motor speed and regulate and control the speed of a motor vehicle, can not waste the electric energy of storage battery.The PWM mode is the abbreviation of English " Pulse Width Modulation ", is called for short pulse-width modulation, is by the change duty of ratio, thereby changes the effective voltage value of motor, thereby realizes speed governing.Therefore, can there be of the unnecessary consumption of existing variable resistance to electric energy.
Embodiment 2:
The motor speed control device of electric motor car, be installed in the shell of electric motor car, specifically: 1 output of speed-regulating potentiometer module is series at PWM module 2,2 outputs of PWM module are series at integrating circuit module 4,4 outputs of integrating circuit module are series at motor drive module 3, and motor drive module 3 drives the direct current machine that is connected in electric motor car.
Though adopt the PWM regulation scheme among the embodiment 1, by the regulating handle gradual slow anglec of rotation, thereby the pwm value that drives the slow variation of speed-regulating potentiometer module 1 and make PWM also gradually by narrow to wide, reach the purpose that at the uniform velocity starting is quickened, this is feasible in theory, but actual state is really not so.After the user often opens the electric motor car electric switch, just speed adjusting lever is rotated to the most at a high speed within a short period of time, this is intrinsic motorcycle operating habit, also be the needs of practical operation, simultaneously, also can not require each operator, slow rotating operating handle linearly during starting.Like this, can cause motor to quicken starting suddenly, electric current is excessive.In such starting process, because given signal increases suddenly, it is too fast to cause pulse duration to increase.Armature winding resistance because of direct current machine is very little again, starts moment, and motor speed is zero, if this moment, the pulse duration growth was too fast, causes motor to start under the state of zero-speed total head.Thereby cause the electric motor car starting current excessive, injury storage battery, rotating speed kick, the uncomfortable drawback of riding.
For solving this drawback, between described speed-regulating potentiometer module 1 and PWM module 2, also be connected to integrating circuit module 4, can realize the at the uniform velocity motor speed control device of the electric motor car of line start control, thus the protection storage battery.
Embodiment 3:
The motor speed control device of electric motor car, be installed in the shell of electric motor car, specifically: 1 output of speed-regulating potentiometer module is series at PWM module 2,2 outputs of PWM module are series at integrating circuit module 41 one time, integrating circuit module 41 outputs are series at quadratic integral circuit module 42,42 outputs of quadratic integral circuit module are series at motor drive module 3, and motor drive module 3 drives the direct current machine that is connected in electric motor car.The integrating circuit module of integrating circuit module 41 series connection quadratic integral circuit modules 42 is inserted between speed-regulating potentiometer module 1 and PWM module 2,, can make speed governing more even than embodiment 2.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in the spirit and scope of the present utility model that do not break away from appended claims and limited; can make various variations to the utility model in the form and details, be protection range of the present utility model.
Claims (3)
1. the motor speed control device of electric motor car, be installed in the shell of electric motor car, it is characterized in that: speed-regulating potentiometer module (1) output is series at PWM module (2), PWM module (2) output is series at motor drive module (3), and motor drive module (3) drives the direct current machine that is connected in electric motor car.
2. the motor speed control device of electric motor car according to claim 1 is characterized in that: also be connected to integrating circuit module (4) between described speed-regulating potentiometer module (1) and the PWM module (2).
3. the motor speed control device of electric motor car according to claim 2 is characterized in that: described integrating circuit module (4) is an integrating circuit module (a 41) series connection quadratic integral circuit module (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201128042U CN202004712U (en) | 2011-04-16 | 2011-04-16 | Speed regulation device for motor of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201128042U CN202004712U (en) | 2011-04-16 | 2011-04-16 | Speed regulation device for motor of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202004712U true CN202004712U (en) | 2011-10-05 |
Family
ID=44707437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201128042U Expired - Fee Related CN202004712U (en) | 2011-04-16 | 2011-04-16 | Speed regulation device for motor of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202004712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108459541A (en) * | 2018-02-26 | 2018-08-28 | 中国地质大学（武汉） | A kind of DBD high-frequency and high-voltage power supplies system |
-
2011
- 2011-04-16 CN CN2011201128042U patent/CN202004712U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108459541A (en) * | 2018-02-26 | 2018-08-28 | 中国地质大学（武汉） | A kind of DBD high-frequency and high-voltage power supplies system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20130416 |