CN105302168A - Low-cost electric steering engine control method based on single-chip microcomputer - Google Patents
Low-cost electric steering engine control method based on single-chip microcomputer Download PDFInfo
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- CN105302168A CN105302168A CN201510798311.1A CN201510798311A CN105302168A CN 105302168 A CN105302168 A CN 105302168A CN 201510798311 A CN201510798311 A CN 201510798311A CN 105302168 A CN105302168 A CN 105302168A
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- steering engine
- steering wheel
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- electric steering
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Abstract
Provided is a low-cost electric steering engine control method based on a single-chip microcomputer. A steering engine controller is used for controlling a direct-current electric steering engine. An embedded type single-chip microcomputer, a PWM amplifier, a power supply module, a current amplifier and a signal conditioning device are arranged in the steering engine controller. The PWM amplifier and the current amplifier are connected with the direct-current electric steering engine. A position sensor is arranged on one side of the direct-current electric steering engine and is connected with the embedded type single-chip microcomputer. The embedded type single-chip microcomputer acquires signals, coverts the acquired signals into digital signals via programs and using the digital signals as control parameters, and outputs driving signals of the direct-current electric steering engine in a way of PWM waves and phase current to drive the direct-current electric steering engine to move. The position sensor acquires and feeds back the real-time positions of the direct-current electric steering engine to the embedded type single-chip microcomputer, so a position feedback control system is formed for performing high-precision position control on the direct-current electric steering engine. Thus, use cost is effectively reduced, size of the designed controller is small, power consumption is low and the designed controller is high in economical efficiency.
Description
Technical field
The present invention relates to servos control technical field, particularly relate to a kind of electronic servos control method of SCM Based low cost.
Background technology
Direct current drive steering wheel is widely used in various field, is indispensable visual plant in automatically controlling.Conveniently user use and direct current drive steering wheel can better be worked, need configuration steering engine controller to drive direct current drive steering wheel.Current direct current drive steering wheel uses the controller based on DSP mostly, controller based on this design can carry out high-precision position control to direct current drive steering wheel, but cost is relatively high, and volume and power consumption are all comparatively large, and under some simple application occasions, economy is poor.
Summary of the invention
Technical matters solved by the invention is to provide a kind of SCM Based low cost electronic servos control method, to solve the shortcoming in above-mentioned background technology.
Technical matters solved by the invention realizes by the following technical solutions:
A kind of electronic servos control method of SCM Based low cost, steering engine controller is adopted to control direct current drive steering wheel, embedded scm, PWM amplifier, power module, current amplification circuit and signal conditioner is provided with in steering engine controller, PWM amplifier, current amplification circuit are connected with direct current drive steering wheel respectively, position transducer is arranged on direct current drive steering wheel side, and is connected with embedded scm, embedded scm is master control unit, its acquisition instructions input signal (discrete magnitude), the feedback signal (analog quantity) of position transducer and hall element output signal (analog quantity), and by program, the signal of collection is converted to digital signal as input control parameter, calculated by the control law in embedded scm again, the drive singal of direct current drive steering wheel is exported with the form of PWM ripple and phase current, wherein PWM ripple amplifies through PWM amplifier, phase current amplifies through current amplification circuit, rear drive direct current drive steering wheel motion, signal conditioner is by Hall element and embedded scm, direct current drive steering wheel connects, for signal condition, position transducer gathers the real time position of direct current drive steering wheel and feeds back to embedded scm in the mode of analog quantity, forming position feedback control system, carries out high-precision position control to direct current drive steering wheel, power module is embedded scm, PWM amplifier, position transducer are powered.
In the present invention, embedded scm adopts commercial style Arduino, the type single-chip microcomputer possesses analog quantity (discrete magnitude) I/O interface, digital quantity I/O interface, pwm signal output, RS232 serial bus interface etc., can also increase several functions module according to service condition.
In the present invention, steering engine controller total interface all uses the basic interface of Arduino.
In the present invention, instruction input use 1 road analog input, feedback use 1 road, position analog input, Hall element export after signal condition, use the output of 3 road analog inputs, PWM ripple to use plate to carry PWM output interface, phase current uses 3 road analog outputs, program debug and burning use RS232 universal serial bus, and working state of system instruction can use 2 road analog outputs to carry out coding display.
In the present invention, the principle of work of PWM amplifier is that the PWM ripple that utilization inputs leads to the bridge switching circuit modulation direct supply controlling to be made up of MOSFET pipe, to reach the object exporting pwm power ripple.PWM amplifier can adopt finished product to export amplification board.
In the present invention, power module is that whole control system is powered, and power supply output mode has three kinds, is respectively and exchanges 7V1800Hz, 5VDC and 24VDC.
Beneficial effect: the present invention forms steering engine controller by embedded scm jointly in conjunction with PWM amplifier, position transducer and power module, position feedback control system is jointly formed further with direct current drive steering wheel, thus the position-force control realized direct current drive steering wheel, effectively reduce use cost, and volume and power consumption little, economy is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of preferred embodiment of the present invention.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
A kind of electronic servos control method of SCM Based low cost, shown in Figure 1, steering engine controller is adopted to control direct current drive steering wheel, embedded scm, PWM amplifier, power module, current amplification circuit and signal conditioner is provided with in steering engine controller, PWM amplifier, current amplification circuit are connected with direct current drive steering wheel respectively, position transducer is arranged on direct current drive steering wheel side, and is connected with embedded scm, embedded scm is master control unit, its acquisition instructions input signal (discrete magnitude), the feedback signal (analog quantity) of position transducer and hall element output signal (analog quantity), and by program, signal is converted to digital signal as input control parameter, calculated by the control law in embedded scm again, the drive singal of direct current drive steering wheel is exported with the form of PWM ripple and phase current, wherein PWM ripple amplifies through PWM amplifier, phase current amplifies through current amplification circuit, rear drive direct current drive steering wheel motion, signal conditioner is by Hall element and embedded scm, direct current drive steering wheel connects, for signal condition, position transducer gathers the real time position of direct current drive steering wheel and feeds back to embedded scm in the mode of analog quantity, forming position feedback control system, carries out high-precision position control to direct current drive steering wheel, power module is embedded scm, PWM amplifier, position transducer are powered.
In the present embodiment, embedded scm adopts commercial style Arduino, the type single-chip microcomputer possesses analog quantity (discrete magnitude) I/O interface, digital quantity I/O interface, pwm signal output, RS232 serial bus interface etc., can also increase several functions module according to service condition.
In the present embodiment, steering engine controller total interface all uses the basic interface of Arduino.
In the present embodiment, instruction input use 1 road analog input, feedback use 1 road, position analog input, Hall element export after signal condition, use the output of 3 road analog inputs, PWM ripple to use plate to carry PWM output interface, phase current uses 3 road analog outputs, program debug and burning use RS232 universal serial bus, and working state of system instruction can use 2 road analog outputs to carry out coding display.
In the present embodiment, the principle of work of PWM amplifier is that the PWM ripple that utilization inputs leads to the bridge switching circuit modulation direct supply controlling to be made up of MOSFET pipe, to reach the object exporting pwm power ripple.PWM amplifier can adopt finished product to export amplification board.
In the present embodiment, power module output mode has three kinds, is respectively and exchanges 7V1800Hz, 5VDC and 24VDC.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. the electronic servos control method of SCM Based low cost, it is characterized in that, steering engine controller is adopted to control direct current drive steering wheel, embedded scm, PWM amplifier, power module, current amplification circuit and signal conditioner is provided with in steering engine controller, PWM amplifier, current amplification circuit are connected with direct current drive steering wheel respectively, position transducer is arranged on direct current drive steering wheel side, and be connected with embedded scm, signal conditioner is connected with embedded scm, direct current drive steering wheel by Hall element; The feedback signal of embedded scm acquisition instructions input signal, position transducer and hall element output signal, and by program, the signal of collection is converted to digital signal as input control parameter, calculated by the control law in embedded scm again, the drive singal of direct current drive steering wheel is exported with the form of PWM ripple and phase current, wherein PWM ripple amplifies through PWM amplifier, phase current amplifies through current amplification circuit, rear drive direct current drive steering wheel motion; Position transducer gathers the real time position of direct current drive steering wheel and feeds back to embedded scm in the mode of analog quantity, forming position feedback control system, carries out high-precision position control to direct current drive steering wheel; Power module is embedded scm, PWM amplifier, position transducer are powered.
2. the electronic servos control method of the SCM Based low cost of one according to claim 1, it is characterized in that, instruction input use 1 road analog input, feedback use 1 road, position analog input, Hall element export after signal condition, use 3 road analog inputs.
3. the electronic servos control method of the SCM Based low cost of one according to claim 1, is characterized in that, PWM ripple exports and uses plate to carry PWM output interface.
4. the electronic servos control method of the SCM Based low cost of one according to claim 1, is characterized in that, phase current uses 3 road analog outputs.
5. the electronic servos control method of the SCM Based low cost of one according to claim 1, is characterized in that, adopts finished product to export amplification board and replaces PWM amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510798311.1A CN105302168A (en) | 2015-11-19 | 2015-11-19 | Low-cost electric steering engine control method based on single-chip microcomputer |
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| CN201510798311.1A CN105302168A (en) | 2015-11-19 | 2015-11-19 | Low-cost electric steering engine control method based on single-chip microcomputer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911921A (en) * | 2016-06-16 | 2016-08-31 | 西安科技大学 | Multipath steering engine control method based on 52-series single-chip microcomputer |
| CN106078796A (en) * | 2016-08-03 | 2016-11-09 | 西安旭天电子科技有限公司 | A kind of multiplex interface steering wheel |
| CN111740648A (en) * | 2020-05-28 | 2020-10-02 | 佛吉亚(无锡)座椅部件有限公司 | Intelligent actuator adopting brushless direct current motor and control method thereof |
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| CN1869846A (en) * | 2006-06-02 | 2006-11-29 | 北京航空航天大学 | Integral high precision control moment gyro gimbal servo digital controller |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105911921A (en) * | 2016-06-16 | 2016-08-31 | 西安科技大学 | Multipath steering engine control method based on 52-series single-chip microcomputer |
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| CN106078796A (en) * | 2016-08-03 | 2016-11-09 | 西安旭天电子科技有限公司 | A kind of multiplex interface steering wheel |
| CN111740648A (en) * | 2020-05-28 | 2020-10-02 | 佛吉亚(无锡)座椅部件有限公司 | Intelligent actuator adopting brushless direct current motor and control method thereof |
| CN111740648B (en) * | 2020-05-28 | 2022-09-13 | 佛吉亚(无锡)座椅部件有限公司 | Intelligent actuator adopting brushless direct current motor and control method thereof |
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Application publication date: 20160203 |