CN112583301A - Vehicle-mounted motor control system, method and circuit for enhancing electromagnetic compatibility - Google Patents
Vehicle-mounted motor control system, method and circuit for enhancing electromagnetic compatibility Download PDFInfo
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- CN112583301A CN112583301A CN202011300746.6A CN202011300746A CN112583301A CN 112583301 A CN112583301 A CN 112583301A CN 202011300746 A CN202011300746 A CN 202011300746A CN 112583301 A CN112583301 A CN 112583301A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 230000007613 environmental effect Effects 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/02—Details of starting control
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Electric Motors In General (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to the technical field of vehicle-mounted motor stability control, in particular to a vehicle-mounted motor control system, a method and a circuit for enhancing electromagnetic compatibility, wherein the control system comprises a processor, a first feedback module, a second feedback module and a driving module which are respectively and electrically connected with the processor, and the other ends of the first feedback module and the driving module are connected with a vehicle-mounted motor; the processor is configured to receive the first feedback parameter and the second feedback parameter; and the control module is also used for judging whether the second feedback parameter meets a preset starting condition, if so, the vehicle-mounted motor is adjusted through the driving module according to the first feedback parameter, and if not, no reaction is carried out. The invention mainly solves the problems that the existing vehicle-mounted motor is easily interfered by external electromagnetic signals in the using process to cause inaccurate feedback signals, and further the vehicle-mounted motor has poor anti-interference performance and poor compatibility.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted motor stability control, in particular to a vehicle-mounted motor control system, method and circuit for enhancing electromagnetic compatibility.
Background
The motor is an electromagnetic device for realizing electric energy conversion or transmission according to an electromagnetic induction law. The main function of the generator is to generate driving torque, and the generator is used as a power source of electrical appliances or various machines and generally utilizes heat energy, energy of people and the like to drive a rotor of the generator to generate electricity. The motor is classified into a dc motor and an ac motor according to the operation power.
In an automobile air-conditioning control system, a direct current feedback motor is generally used, namely, the current position of the motor is judged through a motor feedback value and is compared with a set target position so as to drive the motor to a correct position and realize correct control of the blowing temperature and the blowing position in an automobile. Wherein, the correct acquisition of the motor feedback value is of great importance for the correct control of the motor.
The existing vehicle-mounted motor is easy to cause the electromagnetic wave of other electrical equipment to interfere with the feedback value of the motor due to a plurality of electrical equipment in a use environment in the actual use process, and further causes the problem that the motor cannot work normally.
Therefore, a vehicle-mounted motor control system, method and circuit for enhancing electromagnetic compatibility have been developed.
Disclosure of Invention
The invention provides a vehicle-mounted motor control system, a method and a circuit for enhancing electromagnetic compatibility, and mainly solves the problems that the existing vehicle-mounted motor is easily interfered by external electromagnetic signals in the using process to cause inaccurate feedback signals, and further the vehicle-mounted motor has poor anti-interference performance and poor compatibility.
The invention provides a vehicle-mounted motor control system for enhancing electromagnetic compatibility, which comprises a processor, and a first feedback module, a second feedback module and a driving module which are respectively electrically connected with the processor, wherein the other ends of the first feedback module and the driving module are connected with a vehicle-mounted motor;
the first feedback module is used for receiving a feedback signal sent by the motor and sending a first feedback parameter to the processor;
the second feedback module is used for receiving an external electromagnetic interference signal and sending a second feedback parameter to the processor;
the processor is configured to receive the first feedback parameter and the second feedback parameter; and the control module is also used for judging whether the second feedback parameter meets a preset starting condition, if so, the vehicle-mounted motor is adjusted through the driving module according to the first feedback parameter, and if not, no reaction is carried out.
Preferably, whether the second feedback parameter meets a preset starting condition or not is determined, specifically, whether the second feedback parameter is equal to a preset value or not is determined, if yes, the second feedback parameter is determined not to meet the preset starting condition, and if not, the second feedback parameter is determined to meet the preset starting condition.
The invention also provides a vehicle-mounted motor control method for enhancing electromagnetic compatibility, which comprises the following steps:
s1, electrifying and receiving the first feedback parameter and the second feedback parameter;
and S2, judging whether the second feedback parameter meets a preset starting condition, if so, adjusting the vehicle-mounted motor according to the first feedback parameter, and if not, not making a reaction.
Preferably, in the step S2, the preset starting condition is that the second feedback parameter is equal to a preset value.
The invention also provides a vehicle-mounted motor control circuit for enhancing electromagnetic compatibility, which comprises a processing chip, a motor, a basic feedback circuit for connecting the processing chip and the motor, and an analog feedback circuit connected in parallel with the basic feedback circuit;
the analog feedback circuit comprises a resistor R1 and a resistor R2 which are connected in series, and the other ends of the resistor R1 and the resistor R2 are respectively connected with a voltage of 5V and the ground; the connection part of the resistor R1 and the resistor R2 is connected into the processing chip in parallel.
Preferably, the basic feedback circuit comprises a first feedback loop, a second feedback loop and a third feedback loop; the first feedback loop, the second feedback loop and the third feedback loop are connected in parallel to the collector of the triode Q1; and the base electrode and the emitting electrode of the triode are respectively connected with a first power supply and a second power supply.
Preferably, the triode is a PNP triode.
From the above, the following beneficial effects can be obtained by applying the technical scheme provided by the invention:
according to the control system, the control method and the control circuit, the module for sensing the external electromagnetic interference is additionally arranged, when the output parameter of the module is changed, the electromagnetic interference in the current environment can be judged, so that the feedback parameter is not required to be modified, and the anti-interference performance and the stability of the vehicle-mounted motor are ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a system block diagram of a control system in embodiment 1 of the present invention;
FIG. 2 is a flowchart of a control method according to embodiment 2 of the present invention;
fig. 3 is a circuit diagram of a control circuit in embodiment 3 of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The existing vehicle-mounted motor is easily interfered by external electromagnetic signals in the using process to cause inaccurate feedback signals, so that the problems of poor anti-interference performance and poor compatibility of the vehicle-mounted motor are caused.
Example 1
As shown in fig. 1, in order to solve the above problem, the present embodiment provides an on-vehicle motor control system with enhanced electromagnetic compatibility, which mainly includes a processor 10, and a first feedback module 20, a second feedback module 30 and a driving module 40 electrically connected to the processor 10, respectively, and the other ends of the first feedback module 20 and the driving module 40 are connected to an on-vehicle motor. The first feedback module 20 is configured to receive a feedback signal sent by the motor, and send a first feedback parameter to the processor 10; the second feedback module 30 is configured to receive an external electromagnetic interference signal and send a second feedback parameter to the processor 10; a processor 10 for receiving a first feedback parameter and a second feedback parameter; and the controller is also used for judging whether the second feedback parameter meets the preset starting condition, if so, the vehicle-mounted motor is adjusted through the driving module 40 according to the first feedback parameter, and if not, the vehicle-mounted motor does not react.
Preferably, but not limited to, the first feedback parameter and the second feedback parameter are parameter values that are changed in real time, but the controller must modify its own output parameter according to the first feedback parameter after the second feedback parameter meets the preset starting condition at the same time.
Preferably, but not limited to, the second feedback parameter maintains a default value in an environment without electromagnetic interference, and when electromagnetic interference exists, the value is changed, so that the first feedback parameter is not an exact motor feedback value at the default time, and therefore, the output parameter of the controller is not modified according to the data of the first feedback parameter, otherwise, if the data of the second feedback parameter is consistent with the default value, the output parameter of the controller is modified according to the first feedback parameter, and further, the state of the motor is changed.
Preferably, but not limited to, the control area in this embodiment modifies the output parameters to control the motor state, mainly through the change of the output current, and the driving module 40 makes the motor dynamically adjust according to the feedback parameters.
In this embodiment, the second feedback parameter is used as a criterion for determining whether electromagnetic interference exists in the current environment, and whether the current first feedback parameter is a feedback parameter sent by the motor can be determined in an auxiliary manner, so that a false reaction situation is avoided, and the anti-interference performance of the vehicle-mounted motor is improved.
Example 2
As shown in fig. 2, in order to solve the foregoing problem, the present embodiment proposes a vehicle-mounted motor control method with original electromagnetic compatibility, which mainly includes the following steps:
s1, electrifying and acquiring motor feedback parameters and environment feedback parameters;
and S2, judging whether the environmental feedback parameters meet preset starting conditions, if so, adjusting the vehicle-mounted motor according to the motor feedback parameters, and if not, not making a reaction.
In step S2, the preset starting condition is that the environmental feedback parameter is equal to the preset value.
In this embodiment, in step S1, after the power is supplied by the store clerk, the dynamically obtained motor feedback parameter is constantly transmitted to the controller, and the controller determines whether the environmental feedback parameter received at the same time changes when receiving the motor feedback parameter, and if so, it indicates that there is electromagnetic interference in the current environment, so that there may be an error in the motor feedback parameter in the electromagnetic interference environment, that is, the current motor feedback parameter is not reacted, and the anti-interference performance of the motor in this embodiment is ensured.
Example 3
As shown in fig. 3, in order to solve the foregoing problems, the present embodiment provides an on-vehicle motor control circuit for enhancing electromagnetic compatibility, which mainly includes a processing chip and a motor, a basic feedback circuit for connecting the processing chip and the motor, and an analog feedback circuit connected in parallel with the basic feedback circuit; the analog feedback circuit comprises a resistor R1 and a resistor R2 which are connected in series, and the other ends of the resistor R1 and the resistor R2 are respectively connected with 5V voltage and ground; the connection part of the resistor R1 and the resistor R2 is connected in parallel to a processing chip.
Preferably, but not limited to, this embodiment is described by taking fig. 3 as an example, and circuit diagrams similar to those of the other embodiments and achieving the effects also belong to the protection scope of this embodiment.
Preferably, but not limited to, in the circuit diagram of fig. 3 of this embodiment, the resistors R1 and R2 are both resistors of 2K Ω, and therefore the obtained analog feedback value VMAF _ FB is 2.5 ± 0.2V, and therefore when the analog feedback value is less than 2.3V or greater than 2.7V, it is considered that the current environmental electromagnetic interference is large, and the current electrical value fed back by the basic feedback circuit is not reflected.
Preferably, the basic feedback loop comprises a first feedback loop, a second feedback loop and a third feedback loop; the first feedback loop, the second feedback loop and the third feedback loop are connected in parallel to a collector of the triode Q1, and a base electrode and an emitter electrode of the triode Q1 are respectively connected with the first power supply and the second power supply. The transistor Q1 is a PNP transistor.
In this embodiment, the first feedback loop, the second feedback loop and the third feedback loop represent three different feedback parameters, respectively, and different parameters related to the motor can be fed back to the controller in a targeted manner, and the controller adjusts the output value according to the values of the corresponding parameters.
To sum up, embodiments 1 to 3 provide a vehicle-mounted motor control system, method, and circuit for enhancing electromagnetic compatibility, which do not react to a feedback parameter when determining that there is environmental electromagnetic interference, mainly by detecting the environmental electromagnetic interference, thereby improving the anti-interference performance and electromagnetic compatibility of the motor.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (7)
1. The utility model provides an on-vehicle motor control system of reinforcing electromagnetic compatibility which characterized in that: the vehicle-mounted motor control system comprises a processor, a first feedback module, a second feedback module and a driving module, wherein the first feedback module, the second feedback module and the driving module are respectively and electrically connected with the processor;
the first feedback module is used for receiving a feedback signal sent by the motor and sending a first feedback parameter to the processor;
the second feedback module is used for receiving an external electromagnetic interference signal and sending a second feedback parameter to the processor;
the processor is configured to receive the first feedback parameter and the second feedback parameter; and the control module is also used for judging whether the second feedback parameter meets a preset starting condition, if so, the vehicle-mounted motor is adjusted through the driving module according to the first feedback parameter, and if not, no reaction is carried out.
2. The vehicle-mounted motor control system for enhancing electromagnetic compatibility according to claim 1, characterized in that:
whether the second feedback parameter meets a preset starting condition or not is specifically determined, whether the second feedback parameter is equal to a preset value or not is determined, if yes, the second feedback parameter is determined not to meet the preset starting condition, and if not, the second feedback parameter is determined to meet the preset starting condition.
3. A vehicle-mounted motor control method for enhancing electromagnetic compatibility is characterized by comprising the following steps:
s1, electrifying and acquiring motor feedback parameters and environment feedback parameters;
and S2, judging whether the environmental feedback parameters meet preset starting conditions, if so, adjusting the vehicle-mounted motor according to the motor feedback parameters, and if not, not making a reaction.
4. The vehicle-mounted motor control method for enhancing electromagnetic compatibility according to claim 3, characterized in that: in the step S2, the preset starting condition is specifically that the environmental feedback parameter is equal to a preset value.
5. The utility model provides an on-vehicle motor control circuit of reinforcing electromagnetic compatibility which characterized in that: the motor control circuit comprises a processing chip, a motor, a basic feedback circuit and an analog feedback circuit, wherein the basic feedback circuit is connected with the processing chip and the motor;
the analog feedback circuit comprises a resistor R1 and a resistor R2 which are connected in series, and the other ends of the resistor R1 and the resistor R2 are respectively connected with a voltage of 5V and the ground; the connection part of the resistor R1 and the resistor R2 is connected into the processing chip in parallel.
6. An on-vehicle motor control circuit with enhanced electronic compatibility according to claim 5, wherein: the basic feedback circuit comprises a first feedback loop, a second feedback loop and a third feedback loop; the first feedback loop, the second feedback loop and the third feedback loop are connected in parallel to the collector of the triode Q1; and the base electrode and the emitting electrode of the triode are respectively connected with a first power supply and a second power supply.
7. The vehicle-mounted motor control circuit for enhancing electromagnetic compatibility according to claim 6, wherein: the triode is a PNP triode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011300746.6A CN112583301A (en) | 2020-11-19 | 2020-11-19 | Vehicle-mounted motor control system, method and circuit for enhancing electromagnetic compatibility |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011300746.6A CN112583301A (en) | 2020-11-19 | 2020-11-19 | Vehicle-mounted motor control system, method and circuit for enhancing electromagnetic compatibility |
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| US20090115920A1 (en) * | 2007-11-02 | 2009-05-07 | Innocom Technology (Shenzhen)Co., Ltd. | Liquid crystal display device and test method therefor |
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| CN108725132A (en) * | 2018-05-25 | 2018-11-02 | 惠州市德赛西威汽车电子股份有限公司 | A kind of control system improving air-conditioner controller interference rejection ability |
| CN110233576A (en) * | 2019-07-11 | 2019-09-13 | 贵州航天林泉电机有限公司苏州分公司 | Vehicle-mounted motor driver auxiliary power unit with arousal function |
| CN110978944A (en) * | 2019-11-22 | 2020-04-10 | 惠州市德赛西威汽车电子股份有限公司 | EMC anti-interference logic control method and system based on central control panel of automobile air conditioner |
-
2020
- 2020-11-19 CN CN202011300746.6A patent/CN112583301A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090115920A1 (en) * | 2007-11-02 | 2009-05-07 | Innocom Technology (Shenzhen)Co., Ltd. | Liquid crystal display device and test method therefor |
| CN205665337U (en) * | 2016-06-01 | 2016-10-26 | 安徽江淮汽车股份有限公司 | Carbone controller electromagnetic compatibility test device |
| CN108725132A (en) * | 2018-05-25 | 2018-11-02 | 惠州市德赛西威汽车电子股份有限公司 | A kind of control system improving air-conditioner controller interference rejection ability |
| CN110233576A (en) * | 2019-07-11 | 2019-09-13 | 贵州航天林泉电机有限公司苏州分公司 | Vehicle-mounted motor driver auxiliary power unit with arousal function |
| CN110978944A (en) * | 2019-11-22 | 2020-04-10 | 惠州市德赛西威汽车电子股份有限公司 | EMC anti-interference logic control method and system based on central control panel of automobile air conditioner |
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Application publication date: 20210330 |