CN110789476A - Electric cylinder drive control circuit, method and device and automobile - Google Patents
Electric cylinder drive control circuit, method and device and automobile Download PDFInfo
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- CN110789476A CN110789476A CN201911098739.XA CN201911098739A CN110789476A CN 110789476 A CN110789476 A CN 110789476A CN 201911098739 A CN201911098739 A CN 201911098739A CN 110789476 A CN110789476 A CN 110789476A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
Abstract
The invention belongs to the technical field of automatic transmissions of automobiles, and discloses an electric cylinder driving control circuit, method and device and an automobile. The circuit comprises: the device comprises a power supply conversion module, a signal processing module and a control module; the power supply conversion module is used for performing direct current conversion on the voltage of the storage battery of the whole vehicle and supplying the converted direct current to the front gearbox controller; the signal processing module is used for receiving an input signal sent by the front gearbox controller, carrying out signal preprocessing on the input signal, outputting the processed input signal to the driving module and driving the load electric cylinder; and the control module is used for acquiring the driving state information fed back by the driving module, performing operation processing and outputting the processed driving state information to the front gearbox controller. By the mode, the technical problem that a power supply conversion function and a signal processing function in a power supply system controller in the prior art are single in use and cannot be integrated is solved.
Description
Technical Field
The invention relates to the technical field of automobile automatic transmissions, in particular to an electric cylinder driving control circuit, method and device and an automobile.
Background
Most of the drive controllers in the existing automobile transmission on the market are 12V power supply system controllers, and most of the transmission controllers are developed for large-scale supplier platforms, so that if an additional electric cylinder drive unit needs to be integrated for developing a 24V power supply system controller of a commercial vehicle, the development difficulty is high, and the development period and the cost are high. In the existing 12V power supply system controller, 2 requirements of power supply conversion and PWM signal processing functions are not integrated at the same time, the power supply conversion is mostly 12V to 5V and 3.3V to supply power to a chip or a sensor, and the power supply is used as an enabling signal and rarely plays a role in supplying power by a direct current power supply; because the actuator working current related to the PWM signal processing function is larger about 20A, the PWM signal processing function is not integrated with power conversion, particularly power conversion which plays a role in supplying power by a direct current power supply, that is to say, in the existing 12V power supply system controller, the power conversion function and the signal processing function are used singly and cannot be integrated together to form an integrated controller.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide an electric cylinder driving control circuit, a method, a device and an automobile, and aims to solve the technical problem that in the prior art, a power supply conversion function and a signal processing function in a power supply system controller are single in use and cannot be integrated.
To achieve the above object, the present invention provides an electric cylinder driving control circuit, comprising: the device comprises a power supply conversion module, a signal processing module and a control module; wherein the content of the first and second substances,
the power supply conversion module is used for performing direct current conversion on the voltage of the storage battery of the whole vehicle and supplying the converted direct current to the front gearbox controller;
the signal processing module is used for receiving an input signal sent by a front gearbox controller, carrying out signal preprocessing on the input signal, outputting the processed input signal to the driving module and driving the load electric cylinder;
and the control module is used for acquiring the driving state information fed back by the driving module, performing operation processing and outputting the processed driving state information to the front gearbox controller.
Preferably, the signal processing module comprises a signal filtering module and a driving module; the signal filtering module is connected with the front gearbox controller and used for receiving a PWM input signal sent by the front gearbox controller and filtering the PWM input signal; and the driving module is used for receiving the PWM input signal after filtering processing and outputting the PWM input signal to the load electric cylinder, driving the load electric cylinder and meeting the working requirement of the rated current of the load electric cylinder.
Preferably, the control module comprises a microcontroller and a driving state acquisition module; wherein the content of the first and second substances,
the driving state acquisition module is used for acquiring driving state information fed back by the driving module, wherein the driving state information comprises a normal working state, a power supply or ground short circuit, a circuit break, an overcurrent and an overtemperature;
and the microcontroller is used for receiving the feedback driving state information, performing operation processing and outputting the processed driving state information to the front gearbox controller.
Preferably, the power conversion module comprises a normally-powered module including a DCDC conversion chip; the DCDC conversion chip is used for performing direct current conversion, and supplying the converted direct current to the front gearbox controller, so that the front gearbox controller can realize analog quantity signal input and acquisition, sensor power supply output and solenoid valve control.
Preferably, the power conversion module further comprises an ignition module, and the ignition module comprises a voltage division module; the voltage division module is used for performing resistance voltage division on the converted direct current and outputting the direct current to the front gearbox controller; the voltage division module is further used for outputting a first enabling voltage to the microcontroller.
Preferably, the power conversion module further comprises a power management module, and the power management module comprises a power supply management chip; the power supply management chip is used for controlling the voltage division module to output a second enabling voltage to the normal electricity module and controlling the working time of the normal electricity module to avoid the quiescent current consumption of the storage battery of the whole vehicle.
Further, to achieve the above object, the present invention also proposes an electric cylinder drive control method including the steps of:
receiving the voltage of a storage battery of the whole vehicle, converting the direct current, and supplying the converted direct current to a front gearbox controller;
receiving an input signal sent by the front gearbox controller, performing signal preprocessing on the input signal, outputting the processed input signal to a driving module, and driving a load electric cylinder;
and acquiring the driving state information fed back by the driving module, performing operation processing, and outputting the processed driving state information to the front gearbox controller.
Preferably, the step of receiving an input signal sent by a front gearbox controller, preprocessing the input signal, outputting the processed input signal to a driving module, and driving a load electric cylinder specifically includes:
receiving a PWM input signal sent by a front gearbox controller, filtering the PWM input signal and outputting the filtered PWM input signal to a driving module;
and receiving the PWM input signal after filtering and outputting the PWM input signal to the load electric cylinder, driving the load electric cylinder and meeting the working requirement of the rated current of the load electric cylinder.
In addition, in order to achieve the above object, the present invention also proposes an electric cylinder drive control apparatus including the electric cylinder drive control circuit as described above or applying the electric cylinder drive control method as described above.
In addition, in order to achieve the above object, the present invention also provides an automobile including the electric cylinder drive control apparatus as described above.
The invention forms an electric cylinder driving control circuit by arranging a power supply conversion module, a signal processing module and a control module; the power supply conversion module is used for performing direct current conversion on the voltage of a storage battery of the whole vehicle and supplying the converted direct current to the front gearbox controller; the signal processing module is used for receiving an input signal sent by a front gearbox controller, carrying out signal preprocessing on the input signal, outputting the processed input signal to the driving module and driving the load electric cylinder; and the control module is used for acquiring the driving state information fed back by the driving module, performing operation processing and outputting the processed driving state information to the front gearbox controller. Through the mode, the power supply conversion technology, the signal processing technology and the control processing technology are integrated, an electric cylinder driving control circuit is developed in a modularized mode, the existing electric cylinder driving controller and the actuator electric cylinder are matched, the universalization level of the existing electric cylinder driving controller is improved, the development difficulty, the development period and the development cost are greatly saved, and the technical problem that the power supply conversion function and the signal processing function in the power supply system controller in the prior art are single in use and cannot be integrated is solved.
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, 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 the structures shown in the drawings without creative efforts.
FIG. 1 is a functional block diagram of an embodiment of an electric cylinder drive control circuit according to the present invention;
FIG. 2 is a schematic circuit diagram of an embodiment of an electric cylinder driving control circuit according to the present invention;
FIG. 3 is a flowchart illustrating a first exemplary embodiment of an electric cylinder driving control method according to the present invention;
fig. 4 is a flowchart illustrating a second embodiment of an electric cylinder driving control method according to the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Power supply conversion module | 101 | Constant- |
| 200 | Signal processing module | U1 | |
| 300 | Control module | 102 | |
| 201 | Signal filtering module | U2 | |
| 202 | Drive module | 103 | Power |
| 301 | Micro-controller | U3 | Power |
| 302 | Drive state acquisition module | LEC | Load electric cylinder |
| TCU | Front-mounted gearbox controller |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should be considered to be absent and not within the protection scope of the present invention.
The invention provides an electric cylinder driving control circuit,
referring to fig. 1, in an embodiment of the present invention, the circuit includes: a power conversion module 100, a signal processing module 200 and a control module 300; wherein the content of the first and second substances,
the power conversion module 100 is configured to perform dc power conversion on the voltage of the battery of the entire vehicle, and supply the converted dc power to the front transmission controller. In this embodiment, the power conversion module 100 includes a constant power module, and the constant power module includes a DCDC conversion chip; the DCDC conversion chip is used for performing direct current conversion, and supplying the converted direct current to the front gearbox controller, so that the front gearbox controller can realize analog quantity signal input and acquisition, sensor power supply output and solenoid valve control. For example, the DCDC conversion chip can select an english flying saucer TLF51801ELV power supply chip based on actual power requirements, and is used for converting 24V voltage of a finished vehicle storage battery into 12V voltage, wherein the 24V voltage of the finished vehicle storage battery is divided by 4V to supply power to the TLF51801ELV power supply chip, a step-down chopper circuit is arranged inside the TLF51801ELV power supply chip and is used for performing step-down conversion from direct current to direct current, so that 24V direct current of the finished vehicle storage battery is converted into 12V direct current, stable 12V direct current is provided for a front gearbox controller, and the chip is used for inputting and acquiring analog quantity signals of the front gearbox controller, outputting power supplied by a sensor, controlling an electromagnetic valve and other functional.
The signal processing module 200 is configured to receive an input signal sent by a front transmission controller, perform signal preprocessing on the input signal, output the processed input signal to the driving module, and drive the load electric cylinder. In this embodiment, the signal processing module 200 is mainly used for preprocessing and driving the PWM input signal sent by the front-end controller. The signal processing module 200 comprises a signal filtering module and a driving module; the signal filtering module is connected with the front gearbox controller and used for receiving a PWM input signal sent by the front gearbox controller and filtering the PWM input signal; and the driving module is used for receiving the PWM input signal after filtering processing and outputting the PWM input signal to the load electric cylinder, driving the load electric cylinder and meeting the working requirement of the rated current of the load electric cylinder. The signal preprocessing refers to filtering an input signal sent by a front gearbox controller and received by the signal processing module 200, the signal processing module 200 can realize low-pass filtering adjustment, effectively suppress interference signals, realize signal isolation and reduce transmission errors of the signal processing module 200.
The control module 300 is configured to acquire the driving state information fed back by the driving module, perform operation processing, and output the processed driving state information to the front transmission controller. In this embodiment, the control module 300 includes a microcontroller and a driving state acquisition module; the driving state acquisition module is used for acquiring driving state information fed back by the driving module, wherein the driving state information comprises a normal working state, a power supply or ground short circuit, a circuit break, an overcurrent, an overtemperature and the like. The microcontroller is used for receiving the feedback driving state information, performing operation processing, and outputting the processed driving state information to the front gearbox controller, wherein the processed driving state information can be output to the front gearbox controller in a PWM signal form.
The invention forms an electric cylinder driving control circuit by arranging a power supply conversion module 100, a signal processing module 200 and a control module 300; the power conversion module 100 is configured to perform direct current conversion on the voltage of the storage battery of the whole vehicle, and supply the converted direct current to the front transmission controller; the signal processing module 200 is configured to receive an input signal sent by a front transmission controller, perform signal preprocessing on the input signal, output the processed input signal to the driving module, and drive the load electric cylinder; the control module 300 is configured to acquire the driving state information fed back by the driving module, perform operation processing, and output the processed driving state information to the front transmission controller. Through the mode, the power supply conversion technology, the signal processing technology and the control processing technology are integrated, an electric cylinder driving control circuit is developed in a modularized mode, the existing electric cylinder driving controller and the actuator electric cylinder are matched, the universalization level of the existing electric cylinder driving controller is improved, the development difficulty, the development period and the development cost are greatly saved, and the technical problem that the power supply conversion function and the signal processing function in the power supply system controller in the prior art are single in use and cannot be integrated is solved.
Further, referring to fig. 2, fig. 2 is a schematic circuit structure diagram of an embodiment of an electric cylinder driving control circuit according to the present invention; the signal processing module 200 includes a signal filtering module 201 and a driving module 202; the signal filtering module 201 is connected to the front transmission controller TCU, and is configured to receive a PWM input signal sent by the front transmission controller TCU and perform filtering processing on the PWM input signal; and the driving module 202 is configured to receive the filtered PWM input signal and output the filtered PWM input signal to the load electric cylinder LEC, drive the load electric cylinder LEC, and meet a working requirement of a rated current of the load electric cylinder LEC.
It should be noted that the signal filtering module 201 is configured to filter a PWM input signal sent by the TCU received by the signal processing module 200, and the signal filtering module can implement low-pass filtering adjustment, effectively suppress interference signals, implement signal isolation, and reduce transmission errors of the signal filtering module. The driving module 202 is configured to receive the filtered PWM input signal and output the filtered PWM input signal to the load electric cylinder LEC, drive the load electric cylinder LEC, and meet a working requirement of a rated current of the load electric cylinder LEC. The driving module 202 can adopt a high/low side driving device to realize high/low side driving, and an automobile-level driving chip is used to meet the working requirement of LEC rated current of a subsequent load cylinder.
Further, the control module 300 includes a microcontroller 301 and a driving state acquisition module 302; wherein the content of the first and second substances,
the driving state collecting module 302 is configured to collect driving state information fed back by the driving module 202, where the driving state information includes a normal operating state, a power supply or ground short circuit, a circuit break, an overcurrent, and an overtemperature;
the microcontroller 301 is configured to receive the fed back driving state information, perform arithmetic processing, and output the processed driving state information to the front transmission controller TCU.
It should be noted that the driving state collecting module 302 is configured to collect driving state information fed back by the driving module 202, and the driving state collecting module 302 may be a driving state collecting circuit formed by a plurality of sampling resistors, where the driving state information includes, but is not limited to, a normal operating state, a short circuit to a power supply or ground, an open circuit, an overcurrent, an over-temperature, and the like.
It should be noted that the microcontroller 301 is configured to receive the feedback driving state information, perform arithmetic processing, and output the processed driving state information to the front transmission controller TCU. The microcontroller 301, i.e., a Micro Controller Unit (MCU), also called a Single chip microcomputer (CPU) or a Single chip Microcomputer (MCU), is a chip-level computer formed by appropriately reducing the frequency and specification of a Central Processing Unit (CPU) and integrating peripheral interfaces such as a memory (memory), a counter (Timer), a USB, an a/D converter, a UART, a PLC, a DMA, and even an LCD driving circuit on a Single chip, and performing different combination control for different applications. The microcontroller 301 outputs the processed driving state information to the front transmission controller TCU, and the processed driving state information may be output to the front transmission controller TCU in a PWM signal form.
Further, the power conversion module 100 includes a normally-powered module 101, and the normally-powered module 101 includes a DCDC conversion chip U1; the DCDC conversion chip U1 is configured to perform dc conversion, and supply the converted dc to the front transmission controller TCU, so that the front transmission controller TCU can realize analog signal input and acquisition, sensor power output, and solenoid valve control.
It should be noted that the DCDC conversion chip U1 is configured to perform dc conversion, and supply the converted dc to the front transmission controller TCU, so that the front transmission controller TCU realizes analog signal input and acquisition, sensor power supply output, and solenoid valve control. For example, the DCDC conversion chip U1 can select an english flying saucer TLF51801ELV power supply chip based on actual power requirements, and is used for converting 24V voltage of a storage battery of a whole vehicle into 12V voltage, wherein the 24V voltage of the storage battery of the whole vehicle is divided into 4V to supply power to the TLF51801ELV power supply chip, a voltage reduction chopper circuit is arranged inside the TLF51801ELV power supply chip and is used for performing voltage reduction conversion from direct current to direct current, so that 24V direct current of the storage battery of the whole vehicle is converted into 12V direct current, and stable 12V direct current is provided for a front gearbox controller TCU, and the chip is used for inputting and acquiring analog quantity signals of the front gearbox controller TCU, outputting power supplied by a sensor, controlling an.
Further, the power conversion module 100 further includes an ignition module 102, which includes a voltage divider module U2; the voltage division module U2 is used for performing resistance voltage division on the converted direct current and outputting the direct current to the front transmission case controller TCU; the voltage dividing module U2 is further configured to output a first enable voltage to the microcontroller 301.
Further, the power conversion module 100 further includes a power management module 103, where the power management module 103 includes a power management chip U3; the power supply management chip U3 is used for controlling the voltage division module U2 to output a second enabling voltage to the normal electricity module 101, and controlling the working time of the normal electricity module 101 to avoid the quiescent current consumption of the whole vehicle battery.
It should be noted that, in order to avoid the long-time operation of the normal electricity module 101, which results in the quiescent current consumption of the entire vehicle battery, a special power supply management chip U3 may be adopted, and when the ignition module 102 is powered on and enabled, the power supply management chip U3 enables the normal electricity module 101, and thereafter, the microcontroller 301 and other chips may be enabled by the normal electricity module 101 or the ignition module 102 through the voltage division of the resistor. In this embodiment, the voltage dividing module U2 outputs a first enable voltage to the microcontroller 301.
An embodiment of the present invention provides an electric cylinder driving control method, and referring to fig. 3, fig. 3 is a flowchart illustrating a first embodiment of the electric cylinder driving control method according to the present invention.
In this embodiment, the electric cylinder driving control method includes the steps of:
step S10: the voltage of the storage battery of the whole vehicle is received to carry out direct current conversion, and the converted direct current is supplied to the front gearbox controller.
It should be noted that the power conversion module receives the voltage of the storage battery of the entire vehicle to perform direct current conversion, and the power conversion module may include a normal power module, and the normal power module may include a DCDC conversion chip; the DCDC conversion chip is used for performing direct current conversion, and supplying the converted direct current to the front gearbox controller, so that the front gearbox controller can realize analog quantity signal input and acquisition, sensor power supply output and solenoid valve control. For example, the DCDC conversion chip can select an english flying saucer TLF51801ELV power supply chip based on actual power requirements, and is used for converting 24V voltage of a finished vehicle storage battery into 12V voltage, wherein the 24V voltage of the finished vehicle storage battery is divided by 4V to supply power to the TLF51801ELV power supply chip, a step-down chopper circuit is arranged inside the TLF51801ELV power supply chip and is used for performing step-down conversion from direct current to direct current, so that 24V direct current of the finished vehicle storage battery is converted into 12V direct current, stable 12V direct current is provided for a front gearbox controller, and the chip is used for inputting and acquiring analog quantity signals of the front gearbox controller, outputting power supplied by a sensor, controlling an electromagnetic valve and other functional.
Step S20: and receiving an input signal sent by the front gearbox controller, performing signal preprocessing on the input signal, outputting the processed input signal to a driving module, and driving a load electric cylinder.
It should be noted that the signal processing module receives an input signal sent by the front transmission controller, performs signal preprocessing on the input signal, outputs the processed input signal to the driving module, and drives the load electric cylinder, and the signal processing module is mainly used for preprocessing and driving a PWM input signal sent by the front controller. The signal processing module comprises a signal filtering module and a driving module; the signal filtering module is connected with the front gearbox controller and used for receiving a PWM input signal sent by the front gearbox controller and filtering the PWM input signal; and the driving module is used for receiving the PWM input signal after filtering processing and outputting the PWM input signal to the load electric cylinder, driving the load electric cylinder and meeting the working requirement of the rated current of the load electric cylinder. The signal preprocessing refers to filtering an input signal sent by a front gearbox controller and received by the signal processing module, the signal processing module can realize low-pass filtering adjustment, effectively suppress interference signals, realize signal isolation and reduce transmission errors of the signal processing module.
Step S30: and acquiring the driving state information fed back by the driving module, performing operation processing, and outputting the processed driving state information to the front gearbox controller.
It should be noted that, the control module acquires the driving state information fed back by the driving module, performs operation processing, and outputs the processed driving state information to the front transmission controller, and the control module may include a microcontroller and a driving state acquisition module; the driving state acquisition module is used for acquiring driving state information fed back by the driving module, wherein the driving state information comprises a normal working state, a power supply or ground short circuit, a circuit break, an overcurrent, an overtemperature and the like. The microcontroller is used for receiving the feedback driving state information, performing operation processing, and outputting the processed driving state information to the front gearbox controller, wherein the processed driving state information can be output to the front gearbox controller in a PWM signal form.
The direct current conversion is carried out by receiving the voltage of the storage battery of the whole vehicle, and the converted direct current is supplied to the front gearbox controller; receiving an input signal sent by the front gearbox controller, performing signal preprocessing on the input signal, outputting the processed input signal to a driving module, and driving a load electric cylinder; and acquiring the driving state information fed back by the driving module, performing operation processing, and outputting the processed driving state information to the front gearbox controller. Through the mode, the power supply conversion technology, the signal processing technology and the control processing technology are integrated together, the existing electric cylinder driving controller and the actuator electric cylinder are matched, the universalization level of the existing electric cylinder driving controller is improved, the development difficulty, the development period and the development cost are greatly saved, and the technical problem that the power supply conversion function and the signal processing function in the power supply system controller in the prior art are single in use and cannot be integrated is solved.
Referring to fig. 4, fig. 4 is a flowchart illustrating a second embodiment of an electric cylinder driving control method according to the present invention.
Based on the first embodiment, in step S20, the electric cylinder driving control method of the present embodiment specifically includes:
step S201: and receiving a PWM input signal sent by a front gearbox controller, filtering the PWM input signal, outputting the filtered PWM input signal to a driving module, and driving a load electric cylinder.
It should be noted that the signal processing module receives an input signal sent by the front-mounted transmission controller, performs signal preprocessing on the input signal, outputs the processed input signal to the driving module, and drives the load electric cylinder, and the signal processing module is mainly used for preprocessing a PWM input signal sent by the front-mounted controller. The signal processing module comprises a signal filtering module and a driving module; the signal filtering module is connected with the front gearbox controller and used for receiving a PWM input signal sent by the front gearbox controller and filtering the PWM input signal; the signal preprocessing refers to filtering an input signal sent by a front gearbox controller and received by the signal processing module, the signal processing module can realize low-pass filtering adjustment, effectively suppress interference signals, realize signal isolation and reduce transmission errors of the signal processing module.
Step S202: and receiving the PWM input signal after filtering and outputting the PWM input signal to the load electric cylinder, driving the load electric cylinder and meeting the working requirement of the rated current of the load electric cylinder.
The driving module is configured to receive the filtered PWM input signal and output the PWM input signal to the load electric cylinder, so as to drive the load electric cylinder and meet the operating requirement of the load electric cylinder for rated current.
In the embodiment, a load electric cylinder is driven by receiving a PWM input signal sent by a front gearbox controller, filtering the PWM input signal and outputting the filtered PWM input signal to a driving module; and receiving the PWM input signal after filtering and outputting the PWM input signal to the load electric cylinder, driving the load electric cylinder and meeting the working requirement of the rated current of the load electric cylinder. The low-pass filtering adjustment can be realized, interference signals are effectively inhibited, the isolation of the signals can be realized, and the transmission error of the signal processing module is reduced.
In addition, in order to achieve the above object, the present invention also proposes an electric cylinder drive control apparatus including the electric cylinder drive control circuit as described above or applying the electric cylinder drive control method as described above. The specific structure of the electric cylinder drive control circuit refers to the above-mentioned embodiment, the flow of the electric cylinder drive control method refers to the above-mentioned embodiment, and since the electric cylinder drive control device adopts all the technical solutions of all the above-mentioned embodiments, at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are achieved, and no further description is given here.
In addition, in order to achieve the above object, the present invention also provides an automobile including the electric cylinder drive control apparatus as described above. The specific structure of the electric cylinder driving control device refers to the above embodiments, and since the automobile adopts all technical solutions of all the above embodiments, all beneficial effects brought by the technical solutions of the above embodiments are at least achieved, and are not repeated herein.
It should be understood that the above is only an example, and the technical solution of the present invention is not limited in any way, and in a specific application, a person skilled in the art may set the technical solution as needed, and the present invention is not limited thereto.
It should be noted that the above-described work flows are only exemplary, and do not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to actual needs, and the present invention is not limited herein.
In addition, the technical details that are not elaborated in this embodiment can be referred to the electric cylinder driving control method provided by any embodiment of the present invention, and are not described herein again.
Further, it is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g. Read Only Memory (ROM)/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g. a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An electric cylinder drive control circuit, the circuit comprising: the device comprises a power supply conversion module, a signal processing module and a control module; wherein the content of the first and second substances,
the power supply conversion module is used for performing direct current conversion on the voltage of the storage battery of the whole vehicle and supplying the converted direct current to the front gearbox controller;
the signal processing module is used for receiving an input signal sent by a front gearbox controller, carrying out signal preprocessing on the input signal, outputting the processed input signal to the driving module and driving the load electric cylinder;
and the control module is used for acquiring the driving state information fed back by the driving module, performing operation processing and outputting the processed driving state information to the front gearbox controller.
2. The circuit of claim 1, wherein the signal processing module comprises a signal filtering module and a driving module; the signal filtering module is connected with the front gearbox controller and used for receiving a PWM input signal sent by the front gearbox controller and filtering the PWM input signal; and the driving module is used for receiving the PWM input signal after filtering processing and outputting the PWM input signal to the load electric cylinder, driving the load electric cylinder and meeting the working requirement of the rated current of the load electric cylinder.
3. The circuit of claim 2, wherein the control module comprises a microcontroller and a drive state acquisition module; wherein the content of the first and second substances,
the driving state acquisition module is used for acquiring driving state information fed back by the driving module, wherein the driving state information comprises a normal working state, a power supply or ground short circuit, a circuit break, an overcurrent and an overtemperature;
and the microcontroller is used for receiving the feedback driving state information, performing operation processing and outputting the processed driving state information to the front gearbox controller.
4. The circuit of claim 1, wherein the power conversion module comprises a normally-on module comprising a DCDC conversion chip; the DCDC conversion chip is used for performing direct current conversion, and supplying the converted direct current to the front gearbox controller, so that the front gearbox controller can realize analog quantity signal input and acquisition, sensor power supply output and solenoid valve control.
5. The circuit of claim 3, wherein the power conversion module further comprises an ignition module comprising a voltage divider module; the voltage division module is used for performing resistance voltage division on the converted direct current and outputting the direct current to the front gearbox controller; the voltage division module is further used for outputting a first enabling voltage to the microcontroller.
6. The circuit of claim 5, wherein the power conversion module further comprises a power management module, the power management module comprising a power management chip; the power supply management chip is used for controlling the voltage division module to output a second enabling voltage to the normal electricity module and controlling the working time of the normal electricity module to avoid the quiescent current consumption of the storage battery of the whole vehicle.
7. An electric cylinder drive control method characterized by comprising the steps of:
receiving the voltage of a storage battery of the whole vehicle, converting the direct current, and supplying the converted direct current to a front gearbox controller;
receiving an input signal sent by the front gearbox controller, performing signal preprocessing on the input signal, outputting the processed input signal to a driving module, and driving a load electric cylinder;
and acquiring the driving state information fed back by the driving module, performing operation processing, and outputting the processed driving state information to the front gearbox controller.
8. The method according to claim 7, wherein the step of receiving an input signal from a front-mounted transmission controller, pre-processing the input signal, outputting the processed input signal to a driving module, and driving a load electric cylinder comprises:
receiving a PWM input signal sent by a front gearbox controller, filtering the PWM input signal and outputting the filtered PWM input signal to a driving module;
and receiving the PWM input signal after filtering and outputting the PWM input signal to the load electric cylinder, driving the load electric cylinder and meeting the working requirement of the rated current of the load electric cylinder.
9. An electric cylinder drive control apparatus characterized by comprising the electric cylinder drive control circuit according to any one of claims 1 to 6, or applying the electric cylinder drive control method according to any one of claims 7 to 8.
10. An automobile characterized by comprising the electric cylinder drive control apparatus according to claim 9.
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| CN201911098739.XA CN110789476B (en) | 2019-11-11 | 2019-11-11 | Electric cylinder drive control circuit, method and device and automobile |
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