CN104143881A - Temperature control device used for motor - Google Patents
Temperature control device used for motor Download PDFInfo
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- CN104143881A CN104143881A CN201310171668.8A CN201310171668A CN104143881A CN 104143881 A CN104143881 A CN 104143881A CN 201310171668 A CN201310171668 A CN 201310171668A CN 104143881 A CN104143881 A CN 104143881A
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- motor
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- fan electromotor
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- Control Of Electric Motors In General (AREA)
Abstract
The invention relates to the technical field of electric automobiles, in particular to a temperature control device used for a motor. The temperature control device comprises a controller, the fan motor, a motor data collecting device and an electronic control unit. The controller obtains motor cooling liquid temperature output by the motor data collecting device through the electronic control unit and controls the rotating speed of the fan motor according to the motor cooling liquid temperature. The rotating speed of the fan motor of a water tank of an automobile is automatically controlled according to the changes of the motor cooling liquid temperature, so that it is ensured that the motor works in the optimal state, energy loss is effectively saved, and discharge of a pollution source is reduced. By the adoption of the Hall-free control technology, the maintenance-free purpose is achieved, the fault rate is reduced, system reliability is improved, and the temperature control device is high in practicability.
Description
Technical field
The present invention relates to electric vehicle engineering field, especially a kind of motor attemperating unit.
Background technology
Along with country carries out energy-saving and emission-reduction policy energetically, the new-energy automobile with low power consuming, high-environmental feature has become an important development direction of automobile industry, as electric automobile etc.At present, on market in the middle of comparatively general electric automobile, once there is the situation that motor heat dissipation device is damaged, just cannot guarantee the work of motor heat dissipation system, even if occur that the operation of motor heat dissipation system is undesired, also have no idea to realize one and start voluntarily, tend to cause motor heat dissipation system works inefficiency; Given this, need a kind of motor heat dissipation system of stable performance, i.e. temperature control system.
Consider that the motor water-cool control on current traditional bus is by motor, by mechanical structure, to be driven the motor of radiator fan, the flabellum of motor is carried out heat radiation to water tank, thereby realizes the control of motor working temperature.Therefore, aspect electric automobile, be worth using for reference.But in traditional bus, when motor rotates, the motor of radiator fan can rotate with motor according to certain gearratio, as low in the circulating cooling liquid temp of motor, now without circulating cooling liquid is lowered the temperature, if the motor of radiator fan rotates with motor, this must cause the waste of fuel oil, and causes motor fuel oil serviceability variation.Secondly, the motor of the radiator fan of applying on current traditional bus adopts Hall brushless direct current permanent magnet motor mostly, in motor processing technology, Hall is provided with to strict demand, and also there is flimsy phenomenon in hall device, some hall devices damage, motor just can not be worked, and these factors will inevitably make production cost, maintenance cost increase, and reliability reduces.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind ofly according to water tank coolant temperature, to change, automatically control the rotating speed of radiator fan, guarantee that motor is operated in the motor attemperating unit under optimum temperature.
To achieve these goals, the present invention adopts following technical scheme:
A kind of motor attemperating unit, it comprises controller, fan electromotor, motor data harvester and electronic control unit, described controller obtains the coolant temperature of the motor of motor data harvester output by electronic control unit, described controller is controlled the rotating speed of fan electromotor according to the coolant temperature of motor.
Preferably, described controller comprises power circuit, back-emf signal treatment circuit, current processing circuits, micro-control circuit and communicating circuit;
Described power circuit connects vehicle-mounted boosting battery and vehicle-mounted electrical source of power, for fan electromotor, back-emf signal treatment circuit and micro-control circuit provide power supply;
Described back-emf signal treatment circuit gathers the back-emf signal of fan electromotor, obtains back-emf zero crossing, and this crossover point signal is flowed to micro-control circuit through back-emf signal treatment circuit;
The operating current of each circuit in described processing of circuit circuit monitors and restriction controller;
Described micro-control circuit is connected with communicating circuit with power circuit, back-emf signal treatment circuit, current processing circuits and controls fan electromotor commutation;
Described communicating circuit communicates and is connected with other controls.
Owing to having adopted such scheme, the present invention controls the rotating speed of the fan electromotor of vehicle water tank automatically according to the variation of the cooling liquid temp of motor, to guarantee motor work in the best condition, has effectively saved the loss of energy, has reduced the discharge of pollutant sources; Meanwhile, owing to adopting without Hall control technology, reach non-maintaining object, reduced failure rate, improved the reliability of system; In addition, temperature control system of the present invention adopts closed-loop control system, has high, the energy-conservation feature of efficiency, and it has very strong practicality.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the embodiment of the present invention;
Fig. 2 is the closed loop control method schematic diagram of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As shown in Figure 1, the motor attemperating unit of the present embodiment, it comprises controller 1, fan electromotor 2, motor data harvester 3 and electronic control unit 4, the effect of controller 1 is that the working temperature that guarantees vehicle electric motor is controlled in certain scope, be that controller 1 obtains the coolant temperature of the motor of motor data harvester 3 outputs by electronic control unit 4, controller 1 is controlled the rotating speed of fan electromotor 2 according to the coolant temperature of motor.
Be specially: first controller 1 obtains the rotary speed data of current motor from electronic control unit 4, when rotary speed threshold value that the rotating speed of motor is set higher than controller 1, fan electromotor 2 just can start, and the low cruise to set, when rotary speed threshold value that hell is set, fan electromotor 2 just can stop.Then, controller 1 obtains the coolant temperature of current motor from electronic control unit 4, if the temperature threshold that the coolant temperature of current motor is set lower than controller 1, just the low cruise of fan electromotor 2 to set, its object is to reduce the energy consumption of vehicle itself; If the coolant temperature of current motor is higher than the temperature threshold of setting, just controller 1 can be according to the supply power voltage of coolant temperature, current fan electromotor 2, the rotating speed of real-time adjusting fan electromotor 2, reaches the reasonable control to motor working temperature.
As shown in Figure 2, the closed-loop control being formed by the rotating speed of coolant temperature and fan electromotor 1, be current temperature value T, tach signal S, voltage signal U, control ring is according to temperature signal T calculating voltage signal U, voltage signal U is changed into the tach signal S of fan electromotor 2 in actuator, and control system is carried out negative feedback to rotating speed.
As shown in Figure 1, controller 1 adopts brushless Hall-free technology, and it comprises institute's power circuit 11, back-emf signal treatment circuit 12, current processing circuits 13, micro-control circuit 14 and communicating circuit 15.
Wherein, power circuit 11 forms by controlling power supply and electrical source of power two parts, and controlling power supply is provided by vehicle-mounted boosting battery, and electrical source of power is provided by vehicle-mounted electrical source of power (being super-capacitor module or power battery pack).Control power supply and provide power supply for back-emf signal treatment circuit 12 and micro-control circuit 14, driving power is directly used for fan motor 2.
Back-emf signal treatment circuit 12 is mainly after fan electromotor 2 rotates, gather the back-emf signal of fan electromotor 2, through back-emf signal treatment circuit 12, obtain back-emf zero crossing, and this crossover point signal is flowed to micro-control circuit 14, micro-control circuit 14 is received after crossover point signal, is processed to control fan electromotor 2 commutations.
Current processing circuits 13 is mainly monitoring and the operating current of restriction system, and protection controller 1 is unlikely to burn because of overcurrent or current anomaly.
The core of the temperature control system that micro-control circuit 14 is the present embodiment, is responsible for processing controls each several part.
Communicating circuit 15 can be realized with in vehicle, other control communicating by letter between enterprise, or forms the local area network (LAN) of controller 1.
In sum; because existing under-voltage, overvoltage, overcurrent and self over-temperature protection of fan electromotor 2 and fault self-diagnosis, controller 1 reports to the police; when fault occurs, controller 1 can report vehicle control system and self take corresponding safeguard measure, so that self have higher reliability.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (2)
1. a motor attemperating unit, it is characterized in that: it comprises controller, fan electromotor, motor data harvester and electronic control unit, described controller obtains the coolant temperature of the motor of motor data harvester output by electronic control unit, described controller is controlled the rotating speed of fan electromotor according to the coolant temperature of motor.
2. a kind of motor attemperating unit as claimed in claim 1, is characterized in that: described controller comprises power circuit, back-emf signal treatment circuit, current processing circuits, micro-control circuit and communicating circuit; Described controller comprises power circuit, back-emf signal treatment circuit, current processing circuits, micro-control circuit and communicating circuit; Described power circuit connects vehicle-mounted boosting battery and vehicle-mounted electrical source of power, for fan electromotor, back-emf signal treatment circuit and micro-control circuit provide power supply; Described back-emf signal treatment circuit gathers the back-emf signal of fan electromotor, obtains back-emf zero crossing, and this crossover point signal is flowed to micro-control circuit through back-emf signal treatment circuit; The operating current of each circuit in described processing of circuit circuit monitors and restriction controller; Described micro-control circuit is connected with communicating circuit with power circuit, back-emf signal treatment circuit, current processing circuits and controls fan electromotor commutation; Described communicating circuit communicates and is connected with other controls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310171668.8A CN104143881A (en) | 2013-05-11 | 2013-05-11 | Temperature control device used for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310171668.8A CN104143881A (en) | 2013-05-11 | 2013-05-11 | Temperature control device used for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104143881A true CN104143881A (en) | 2014-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310171668.8A Pending CN104143881A (en) | 2013-05-11 | 2013-05-11 | Temperature control device used for motor |
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| Country | Link |
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| CN (1) | CN104143881A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104679067A (en) * | 2014-12-23 | 2015-06-03 | 北京首钢股份有限公司 | Cooling fan variable-frequency control method and device |
| CN107338961A (en) * | 2016-12-27 | 2017-11-10 | 浙江孚盾智能科技有限公司 | A kind of high frequency concrete vibration bar |
-
2013
- 2013-05-11 CN CN201310171668.8A patent/CN104143881A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104679067A (en) * | 2014-12-23 | 2015-06-03 | 北京首钢股份有限公司 | Cooling fan variable-frequency control method and device |
| CN104679067B (en) * | 2014-12-23 | 2017-02-22 | 北京首钢股份有限公司 | Cooling fan variable-frequency control method and device |
| CN107338961A (en) * | 2016-12-27 | 2017-11-10 | 浙江孚盾智能科技有限公司 | A kind of high frequency concrete vibration bar |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141112 |