CN202395717U - Motor controller for vehicle - Google Patents
Motor controller for vehicle Download PDFInfo
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- CN202395717U CN202395717U CN2011204358987U CN201120435898U CN202395717U CN 202395717 U CN202395717 U CN 202395717U CN 2011204358987 U CN2011204358987 U CN 2011204358987U CN 201120435898 U CN201120435898 U CN 201120435898U CN 202395717 U CN202395717 U CN 202395717U
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- motor controller
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Abstract
The utility model discloses a motor controller for a vehicle, being applied to the motor control field and comprising a driving state determining unit and a space vector control unit, wherein the space vector control unit comprises an electrical angle calculating unit and a space vector algorithm control unit; the driving state determining unit is connected with the space vector control unit; and the electrical angle calculating unit is connected with the space vector algorithm control unit. The motor controller for a vehicle has the advantages of making the vehicle driving with the lowest sound level, avoiding the mechanical vibration caused by that the motor is driven by the square wave for a long time, and prolonging the service life of the motor.
Description
Technical field
The utility model relates to motor control field, relates in particular to a kind of motor controller of the vehicles.
Background technology
Because crisis of earth petroleum resources and problem of environmental pollution are more and more serious, the development new forms of energy vehicles have become global Focal Point of Common Attention problem, and fuel bicycle has reduced the consumption of oil to a certain extent; Reduced discarded discharging; The resource but fuel bicycle still will consume petroleum eventually, and its operating efficiency is low, and the operation noise is big; Equally also brought a lot of problems to environment, particularly serious in the influence in the higher place of the density of population.In order to solve a series of problems that fuel bicycle exists; Developing electronic vehicles replacement fuel bicycle is that market is required; Battery-operated motor cycle for example; But battery-operated motor cycle will reach the effect of going of fuel bicycle, just necessarily requires battery-operated motor cycle to have the characteristic of quick startup, high travel speed and certain flying power, and the battery-operated motor cycle that possesses these performances will satisfy following 3 requirements at least: will have the first, that operation is efficient, the big motor of exerting oneself; The motor control system that the second, working stability, efficient height and different working modes will be arranged; The apparatus for storing electrical energy battery that three, high-energy-density, high-specific-power and light weight high capacity will be arranged.At present, what motor controller was the most general has two kinds, and a kind of is the motor controller that adopts the square wave control method of 120 degree control technologys, and another kind is the motor controller that adopts the sinusoidal wave control method of 180 degree control technologys; The characteristics of square wave control method are that staring torque is big, but the operation noise is also big, and especially noise problem is more serious under the heavy load situation; The characteristics of sinusoidal wave control method are that operational efficiency is high, and the noise that goes is very little, but staring torque is little, and the car load toggle speed is slow.
The utility model content
To above-mentioned technical problem; The purpose of the utility model is to provide a kind of motor controller of the vehicles; It is according to the difference of vehicles working condition; The control motor is adjusted the phase current ripple or the sinusoidal wave phase current of output equivalent square wave automatically, accomplishes the requirement of big staring torque of the vehicles and low operation noise.
For achieving the above object, the utility model is realized through following technical scheme:
A kind of motor controller of the vehicles, it comprises transport condition judging unit and space vector control unit, said space vector control unit comprises electrical degree computing unit and space vector algorithm controls unit; Said transport condition judging unit is connected with the space vector control unit, and said electrical degree computing unit is connected with space vector algorithm controls unit.
Special, said space vector control unit also comprises the rotor-position computing unit, said rotor-position computing unit is connected with the state of enforcement judging unit.
Special, said space vector control unit also comprises the Hall state detection unit, said Hall state detection unit is connected with the electrical degree computing unit with the rotor-position computing unit.
The beneficial effect of the utility model does; The motor controller of said a kind of vehicles is in starting state through the transport condition judging unit real-time judge vehicles; Low speed heavy load running status, or cruising state, the space vector control unit is according to the judged result of transport condition judging unit; Output equivalent square wave or sinusoidal wave phase current; Reach the purpose of big staring torque and low operation noise, the mechanical oscillation of having avoided motor to be caused by square wave drive for a long time prolong motor useful life.
Description of drawings
According to accompanying drawing and embodiment the utility model is done further explain below.
Fig. 1 is applied to the motor controller structure chart on the battery-operated motor cycle for the utility model;
Fig. 2 is a Hall state relation sketch map;
Fig. 3 is the phase current sketch map of equivalent square wave;
Fig. 4 is sinusoidal wave phase current sketch map.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.Please referring to figs. 1 through shown in Figure 4.
Regulation: P is the motor number of pole-pairs, and there be P revolution in one week of rotor mechanical rotation; N is the Hall state, and it has six states, difference called after 0,1,2,3,4,5, and n also representes the number of times of Hall state variation simultaneously.
In the present embodiment; A kind of motor controller of battery-operated motor cycle; It comprises transport condition judging unit and space vector control unit, and said space vector control unit comprises rotor-position computing unit, Hall state detection unit, electrical degree computing unit and space vector algorithm controls unit.
Said transport condition judging unit is connected with the space vector control unit, and the CD-ROM drive motor Control Software is to judge that battery-operated motor cycle is in starting state, low speed heavy load running status or cruising state.Said low speed heavy load running status is lower than per hour 10 kilometers transport condition for the battery-operated motor cycle travel speed; If battery-operated motor cycle neither is in starting state, be not in low speed heavy load running status again, then battery-operated motor cycle is in the cruising state.
Said rotor-position computing unit is connected with the transport condition judging unit, calculates the position of current motor rotor in real time, and the positional information of rotor is issued the Hall state detection unit.
Said Hall state detection unit is connected with the rotor-position computing unit, detects the Hall state variation of motor output according to the current location of rotor, and imports the Hall state change information into the electrical degree computing unit.As shown in Figure 2; Fig. 2 is a Hall state relation sketch map, and U, V, W represent three phase places respectively, and wherein 0,1,2,3,4,5 is six different Hall states; Hall state in swing circle of rotor changes to 5 from 0 according to this, experiences six Hall states.
Said electrical degree computing unit is connected with the Hall state detection unit, according to the Hall state variation of motor output, adjusts the electrical degree computational methods automatically, calculates the electrical degree of motor rotor position.
When the transport condition judgment unit judges goes out battery-operated motor cycle and is in starting state or low speed heavy load running status; The position of the rotor that calculates in real time through the rotor-position computing unit; And the Hall state detection unit is according to the Hall state variation of the detected motor of the current location of rotor output, and said electrical degree computing unit calls the electrical degree that formula (1) calculates motor rotor position; The space vector algorithm controls unit that is connected with the electrical degree computing unit is used for the electrical degree of the motor rotor position that calculates clark conversion, park conversion, clark inverse transformation and the park inverse transformation of space vector algorithm; The fixed step size that the electrical degree of motor rotor position is set with the step value setup unit increases; The phase current of output equivalent square wave; Motor provides big staring torque, reduces the time that battery-operated motor cycle starts;
wt=2pi*n/6+k*wt_add+wt_offset （1）
Wherein, pi is a constant 3.14, and n is the change frequency of Hall state, and k is the calculation times of motor rotor position, and wt_add is the fixed step size value that the electrical degree of motor rotor position increases, and wt_offset is the electrical degree compensation rate of motor rotor position.
When the transport condition judgment unit judges went out battery-operated motor cycle and is in the cruising state, said electrical degree computing unit called the electrical degree that formula (2) calculates motor rotor position.The space vector algorithm controls unit that is connected with the electrical degree computing unit is used for the electrical degree of the motor rotor position that calculates clark conversion, park conversion, clark inverse transformation and the park inverse transformation of space vector algorithm; The phase current of output equivalent square wave, battery-operated motor cycle goes with low noise;
wt=2*pi*n/6+t*times*wt_speed+wt_offset （2）
Wherein, pi is a constant 3.14, and n is the change frequency of Hall state, and t is the timer counting time once; Times is a timer counts in the same Hall state; Wt_speed is the electric angle speed of rotor rotation; Wt_offset is the electrical degree compensation rate of motor rotor position.
The difference of the transport condition of the battery-operated motor cycle that the motor controller of said battery-operated motor cycle is judged according to the motor Control Software, the electrical degree computing unit uses different electrical degree computational methods; When battery-operated motor cycle was in starting state or low speed heavy load running status, electrical degree increases used fixed step size, the phase current of the approximate square wave of space vector algorithm controls unit controls motor output, and motor provides big staring torque, shortens start-up time; When battery-operated motor cycle starts smoothly; Speed reaches certain value; When being in the cruising state; The electrical degree computing unit is corrected as regular space vector algorithm electrical degree computational methods automatically, and the phase current of space vector algorithm controls unit controls motor sine wave output makes battery-operated motor cycle go with low noise; The mechanical oscillation of having avoided motor to be caused by square wave drive for a long time, the useful life of prolongation motor.
Above-mentioned preferred embodiment and the institute's application technology principle that is merely the utility model; Any technical staff who is familiar with the present technique field is in the technical scope that the utility model discloses; The variation that can expect easily or replacement all should be encompassed in the protection range of the utility model.
Claims (3)
1. the motor controller of vehicles is characterized in that, comprises transport condition judging unit and space vector control unit, and said space vector control unit comprises electrical degree computing unit and space vector algorithm controls unit; Said transport condition judging unit is connected with the space vector control unit, and said electrical degree computing unit is connected with space vector algorithm controls unit.
2. the motor controller of the vehicles according to claim 1 is characterized in that, said space vector control unit also comprises the rotor-position computing unit, and said rotor-position computing unit is connected with the state of enforcement judging unit.
3. the motor controller of the vehicles according to claim 2 is characterized in that, said space vector control unit also comprises the Hall state detection unit, and said Hall state detection unit is connected with the electrical degree computing unit with the rotor-position computing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204358987U CN202395717U (en) | 2011-11-07 | 2011-11-07 | Motor controller for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204358987U CN202395717U (en) | 2011-11-07 | 2011-11-07 | Motor controller for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202395717U true CN202395717U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204358987U Expired - Fee Related CN202395717U (en) | 2011-11-07 | 2011-11-07 | Motor controller for vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN202395717U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391351A (en) * | 2014-09-03 | 2016-03-09 | 韩国自动车部品株式会社 | Bldc motor control system and control method |
| CN111817616A (en) * | 2020-07-10 | 2020-10-23 | 上海钧正网络科技有限公司 | Motor control method and device |
-
2011
- 2011-11-07 CN CN2011204358987U patent/CN202395717U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391351A (en) * | 2014-09-03 | 2016-03-09 | 韩国自动车部品株式会社 | Bldc motor control system and control method |
| CN111817616A (en) * | 2020-07-10 | 2020-10-23 | 上海钧正网络科技有限公司 | Motor control method and device |
| CN111817616B (en) * | 2020-07-10 | 2022-01-11 | 上海钧正网络科技有限公司 | Motor control method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160316 Address after: 312000 Zhejiang Province, Southeast of Shaoxing City Paojiang Qunxian road and ZTE Avenue. Patentee after: Step motor drive technology (Shaoxing) Co., Ltd. Address before: 214192, No. three, No. 99, Furong Road, Xishan science and Technology Pioneer Park, Jiangsu, Wuxi Patentee before: Wuxi Myway Electric Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20201107 |