CN210391008U - Manual-automatic transmission drive control circuit - Google Patents
Manual-automatic transmission drive control circuit Download PDFInfo
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- CN210391008U CN210391008U CN201921026411.2U CN201921026411U CN210391008U CN 210391008 U CN210391008 U CN 210391008U CN 201921026411 U CN201921026411 U CN 201921026411U CN 210391008 U CN210391008 U CN 210391008U
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Abstract
The utility model provides a drive control circuit of a manual-automatic integrated transmission, which comprises a microprocessor control circuit, a gear shifting execution circuit, a switch signal input circuit, an analog signal sampling circuit and a power supply conversion circuit, step motor drive circuit and the drive circuit that shifts, shift the actuating circuit, switching signal input circuit, analog signal sampling circuit, power conversion circuit, step motor drive circuit and the drive circuit that shifts all with microprocessor control circuit electric connection, microprocessor control circuit carries out analysis and data processing to the signal of gathering, shift the actuating circuit and be used for carrying out the action of shifting, switching signal input circuit is to microprocessor control circuit input signal, analog signal sampling circuit can carry out filtering with the signal and handle, power conversion circuit is used for providing the steady voltage, step motor drive circuit provides the drive, the drive circuit that shifts is used for improving the stability of shifting. The utility model discloses can control the gearbox and realize that the process of shifting carries out the control of rising and falling speed to step motor.
Description
Technical Field
The utility model relates to a derailleur control technology field, concretely relates to manual-automatic derailleur drive control circuit.
Background
A vehicle transmission is a set of speed change devices for coordinating the rotation speed of an engine and the actual running speed of wheels, and is used for exerting the optimal performance of the engine. The transmission can generate different speed change ratios between the engine and wheels during the running process of the automobile, and the engine can work in the optimal power performance state through gear shifting. A dual clutch automatic transmission (DCT) has both the convenience of operation of a conventional Automatic Transmission (AT) and better fuel economy than a Manual Transmission (MT). Mechanically speaking, a DCT is a composite of two manual transmissions. The output of the engine is respectively transmitted into even gears or odd gears through a sleeve shaft and a real shaft, the sleeve shaft and the real shaft are respectively connected with respective clutches, when the automobile runs at a certain gear, the next gear is already hung but is in an idle running state together with the corresponding clutch, and the gear shifting process is realized through the switching of the two clutches.
However, the dual-clutch automatic transmission control system is composed of various sensors and related plug wiring harnesses, so that the dual-clutch automatic transmission control system is complex, is difficult to accurately analyze and judge according to current working condition signals acquired by the sensors, and is difficult to send accurate control execution instructions to the execution mechanism.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to solve the problem of providing manual-automatic transmission drive control circuit.
In order to solve the technical problem, the utility model discloses a technical scheme is: the manual-automatic integrated transmission drive control circuit comprises a microprocessor control circuit, a gear shifting execution circuit, a switch signal input circuit, an analog signal sampling circuit, a power conversion circuit, a stepping motor drive circuit and a gear shifting drive circuit, wherein the gear shifting execution circuit, the switch signal input circuit, the analog signal sampling circuit, the power conversion circuit, the stepping motor drive circuit and the gear shifting drive circuit are electrically connected with the microprocessor control circuit, the microprocessor control circuit is used for analyzing and processing data of collected signals, the gear shifting execution circuit is used for executing gear shifting action, the switch signal input circuit is used for inputting signals to the microprocessor control circuit, the analog signal sampling circuit can filter the signals, and the power conversion circuit is used for providing 5V and 3.3V voltages, the stepping motor driving circuit is used for providing driving for the stepping motor, and the gear shifting driving circuit is used for improving the stability of gear shifting.
The utility model discloses in, preferably, shift actuating circuit passes through microprocessor control circuit's INB1 to INB6 pin has set gradually neutral gear, manual fender, reverse gear, keep off with higher speed, go forward and keep off with slowing down and keep off six fender positions, and every keeps off the equal fixed mounting of position and has a hall sensor, hall sensor electric connection has relay blocking circuit, works as when hall sensor detects transition signal, relay blocking circuit corresponds the contact closure, relay circular telegram and action.
The utility model discloses in, preferably, microprocessor control circuit electric connection has RS232 interface circuit, RS232 interface circuit adopts the chip of MAX3232 model, RS232 interface circuit's T2IN pin and R2OUT pin respectively with microprocessor control circuit's PA9 pin and PA10 pin link to each other.
The utility model discloses IN, preferably, switching signal input circuit includes that eight ways shift handle signal circuit, four ways shift mode keying circuit, three ways gear shift motor meso position signal circuit, two ways advance and retreat motor meso position signal circuit, three ways reserve digital quantity signal input circuit, four ways brake pedal position signal circuit, footboard input signal circuit and potentiometre signal circuit, four ways shift mode keying circuit's output with microprocessor control circuit's IN19 pin links to each other to IN112 pin, eight ways shift handle signal circuit's output respectively with microprocessor control circuit's IN11 pin links to each other to IN18 pin, three ways gear shift motor meso position signal circuit's output respectively with microprocessor control circuit's IN113 pin links to each other to IN115 pin, two ways advance and retreat motor meso position signal circuit's output respectively with microprocessor control circuit's IN116 pin, The output ends of the three paths of reserved digital quantity signal input circuits are respectively connected with pins IN118 to IN120 of the microprocessor control circuit, the output ends of the four paths of brake pedal position signal circuits are respectively connected with pins IN121 to IN124 of the microprocessor control circuit, the output end of the pedal input signal circuit is connected with a pin PA2 of the microprocessor control circuit, and the output end of the potentiometer signal circuit is connected with a pin PA3 of the microprocessor control circuit.
The utility model discloses IN, preferably, analog signal sampling circuit sets up to four ways, is used for input clutch speed signal, engine speed signal and two sets of reservation signals respectively, every way analog signal sampling circuit all includes a comparator and a schmidt trigger buffer, the forward input of comparator even has signal input part, the output of comparator with schmidt trigger buffer's input links to each other, schmidt trigger buffer is used for eliminating signal input part's interference, schmidt trigger buffer respectively with microprocessor control circuit's IN21 pin to IN24 pin links to each other.
The utility model discloses in, preferably, power conversion circuit includes voltage converter and stabiliser, voltage converter is used for converting 12V's direct current voltage into 5V direct current voltage, and 5V direct current voltage passes through the stabiliser can fall to 3.3V, and then exports 3.3V's steady voltage.
The utility model discloses in, preferably, step motor drive circuit adopts the chip of TB6560AHQ model.
The utility model discloses in, preferably, the drive circuit that shifts adopts the chip of IR2104 model, the drive circuit that shifts includes four triodes, the triode constitutes H bridge drive circuit control motor corotation or reversal.
IN the present invention, preferably, an external crystal oscillator is connected between the OSC _ IN pin and the OSC _ OUT pin of the microprocessor control circuit.
The utility model discloses in, preferably, RS232 interface circuit through its T2OUT pin and the external PC of R2IN pin, realize the PC with data transmission between the microprocessor control circuit.
The utility model has the advantages and positive effects that:
(1) through the mutual cooperation between a microprocessor control circuit, a gear shifting execution circuit, a switch signal input circuit, an analog signal sampling circuit, a power supply conversion circuit, a stepping motor drive circuit and the gear shifting drive circuit, the microprocessor control circuit adopts a single chip as a main controller chip and is used for carrying out data analysis and operation processing on collected signals, sending instructions and realizing information intercommunication between the microprocessor control circuit and a PC (personal computer), the switch signal input circuit is used for inputting signals to the microprocessor control circuit, the analog signal sampling circuit can carry out filtering processing on the signals, the power supply conversion circuit is used for providing 5V and 3.3V voltages, the stepping motor drive circuit is used for providing drive for a stepping motor, the gear shifting drive circuit is used for improving the gear shifting stability and controlling a gear shifting process to carry out speed increasing and decreasing control on the stepping motor, the shifting process is completed.
(2) Because every keeps off the equal fixed mounting of position and has a hall sensor, hall sensor electric connection has relay blocking circuit, and when hall sensor detected transition signal, relay blocking circuit corresponds the contact closure, and the relay circular telegram is moved. Neutral gear, manual fender, reverse gear, the fender that accelerates, the fender that advances and the fender that slows down correspond "N" in proper order and keep off, "M" keep off, "R" keep off, "+" keep off, "D" keep off and "-" keep off six keep off, and M keeps off and is manual mode, and the user is manual just pushes away or the reverse push away with the pin of gearbox, can give the PC and assign the instruction that rises to keep off or subtract the fender, then PC chance control gearbox shifts as required to realize the manual function of shifting.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic circuit diagram of a microprocessor control circuit of the drive control circuit of the automated manual transmission according to the present invention;
fig. 2 is a schematic circuit diagram of a shift execution circuit of the automated manual transmission drive control circuit of the present invention;
fig. 3 is a schematic circuit diagram of a switching signal input circuit of the drive control circuit of the automated manual transmission according to the present invention;
fig. 4 is a schematic circuit diagram of an analog signal sampling circuit of the drive control circuit of the automated manual transmission according to the present invention;
fig. 5 is a schematic circuit diagram of a power conversion circuit of the drive control circuit of the automated manual transmission according to the present invention;
fig. 6 is a schematic circuit diagram of a step motor driving circuit of the drive control circuit of the automated manual transmission according to the present invention;
fig. 7 is a schematic circuit diagram of a shift driving circuit of the automated manual transmission driving control circuit according to the present invention;
fig. 8 is a schematic circuit diagram of a relay locking circuit of the drive control circuit of the automated manual transmission according to the present invention;
fig. 9 is a schematic circuit diagram of an RS232 interface circuit of the automated manual transmission drive control circuit according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 9, the present invention provides a drive control circuit for an automated manual transmission, which comprises a microprocessor control circuit, a shift execution circuit, a switch signal input circuit, an analog signal sampling circuit, a power conversion circuit, a stepping motor drive circuit and a shift drive circuit, wherein the shift execution circuit, the switch signal input circuit, the analog signal sampling circuit, the power conversion circuit, the stepping motor drive circuit and the shift drive circuit are all electrically connected to the microprocessor control circuit, the microprocessor control circuit is used for analyzing and processing data of collected signals, the shift execution circuit is used for executing shift actions, the switch signal input circuit is used for inputting signals to the microprocessor control circuit, the analog signal sampling circuit is capable of filtering signals, the power supply conversion circuit is used for providing 5V and 3.3V voltage, the stepping motor driving circuit is used for driving the stepping motor, and the gear shifting driving circuit is used for improving the stability of gear shifting.
In this embodiment, furtherly, shift execution circuit passes through microprocessor control circuit's INB1 to INB6 pin has set gradually neutral gear, manual fender, reverse gear, has kept off with higher speed, has advanced to keep off and has kept off six fender positions with slowing down, and every keeps off the equal fixed mounting of position has a hall sensor, hall sensor electric connection has relay blocking circuit, works as when hall sensor detects transition signal, relay blocking circuit corresponds the contact closure, and the relay circular telegram is moved. Neutral gear, manual fender, reverse gear, the fender that accelerates, the fender that advances and the fender that slows down correspond "N" in proper order and keep off, "M" keep off, "R" keep off, "+" keep off, "D" keep off and "-" keep off six fender positions, and M keeps off to be manual mode, through the manual pin with the gearbox of user just pushing away or the reverse thrust, can give the PC and assign the instruction that rises to keep off or subtract the fender, then PC chance control gearbox shifts as required to realize manual shifting.
In this embodiment, the microprocessor control circuit is further electrically connected to an RS232 interface circuit, the RS232 interface circuit is a chip of a MAX3232 type, and a T2IN pin and an R2OUT pin of the RS232 interface circuit are respectively connected to a PA9 pin and a PA10 pin of the microprocessor control circuit. Because the signal that the one-chip computer can use is the TTL signal of the standard 0-5V, in carrying on the serial port debugging process of PC and one-chip computer, need use USB to change TTL module tool, change USB into RS232 serial port first, and then convert RS232 electrical level into TTL electrical level through MAX232 chip, insert to receive data R2IN pin and send data I2OUT pin with two communication lines.
IN this embodiment, the switch signal input circuit further includes an eight-way shift lever signal circuit, a four-way shift mode key circuit, a three-way shift motor neutral signal circuit, a two-way advance and retreat motor neutral signal circuit, a three-way reserved digital signal input circuit, a four-way brake pedal position signal circuit, a pedal input signal circuit, and a potentiometer signal circuit, wherein an output end of the four-way shift mode key circuit is connected to pins IN19 through IN112 of the microprocessor control circuit, output ends of the eight-way shift lever signal circuit are respectively connected to pins IN11 through IN18 of the microprocessor control circuit, output ends of the three-way shift motor neutral signal circuit are respectively connected to pins IN113 through IN115 of the microprocessor control circuit, and output ends of the two-way advance and retreat motor neutral signal circuit are respectively connected to pins IN116, pin, and potentiometer signal circuit of the microprocessor control circuit, The output ends of the three paths of reserved digital quantity signal input circuits are respectively connected with pins IN118 to IN120 of the microprocessor control circuit, the output ends of the four paths of brake pedal position signal circuits are respectively connected with pins IN121 to IN124 of the microprocessor control circuit, the output end of the pedal input signal circuit is connected with a pin PA2 of the microprocessor control circuit, and the output end of the potentiometer signal circuit is connected with a pin PA3 of the microprocessor control circuit. The four-way gear shifting mode key circuit respectively realizes four functions of accelerating, decelerating, advancing and retreating, the eight-way gear shifting handle signal circuit inputs each gear lever signal, the three-way gear shifting motor middle position signal circuit respectively inputs the working state signal of a gear shifting middle position, the pedal input signal circuit and the potentiometer signal circuit respectively play the roles of braking and an electronic throttle, the electronic throttle changes the direct mechanical connection mode (such as a cable and a lever) between the traditional throttle and an accelerator pedal, the rapid and accurate control of the throttle can be realized under the control of the microprocessor control circuit, the optimal opening degree of the throttle can be determined according to the will, emission, oil consumption and safety requirements of operators, and multiple functions can be set to improve the driving safety and comfort.
IN this embodiment, the analog signal sampling circuits are further configured to be four paths, and are respectively configured to input a clutch rotation speed signal, an engine rotation speed signal, and two sets of reserved signals, each path of the analog signal sampling circuits includes a comparator and a schmitt trigger buffer, a positive input end of the comparator is connected to a signal input end, an output end of the comparator is connected to an input end of the schmitt trigger buffer, the schmitt trigger buffer is configured to eliminate interference of the signal input end, and the schmitt trigger buffer is respectively connected to pins IN21 to IN24 of the microprocessor control circuit. The analog signal sampling circuit is set to be a two-stage signal transmission mode comprising a comparator and a Schmidt trigger buffer, so that the waveform of a signal can be shaped, a proper rectangular pulse waveform is obtained, the rotating speed of an engine and a clutch is tested, and the polarity (namely, forward rotation or reverse rotation) of the signal is determined.
In this embodiment, further, the power conversion circuit includes a voltage converter and a voltage stabilizer, where the voltage converter is configured to convert a 12V dc voltage into a 5V dc voltage, and the 5V dc voltage can be reduced to 3.3V by the voltage stabilizer, so as to output a stable voltage of 3.3V. The voltage converter adopts an MP2359 type chip, the voltage stabilizer adopts an AMS1117 type chip, 12V voltage is firstly converted into 5V voltage through the voltage converter, then the 5V voltage is converted into 3.3V voltage through the capacitor filtering and then the voltage stabilizer, secondary filtering is carried out through the capacitor, and the provided output voltage is ensured to be stable.
In this embodiment, the stepping motor driving circuit further adopts a chip of TB6560AHQ model. The TB6560AHQ type chip has the advantages of low motor vibration noise, support for the type selection of each stepping motor and high chip integration level, and the TB6560AHQ chip has simple peripheral circuit and high reliability, supports the wide speed regulation application of the stepping motor from a few to nearly thousand revolutions per minute, and greatly reduces the industrial production cost.
In this embodiment, further, the shift driving circuit is an IR2104 type chip, and the shift driving circuit includes four triodes, and the triodes form an H-bridge driving circuit to control the forward rotation or the reverse rotation of the motor. In order to make the motor run, two triodes on the diagonal line need to be conducted, and the motor runs in the reverse direction when two triodes on the other diagonal line are conducted.
IN this embodiment, an external crystal oscillator is connected between the OSC _ IN pin and the OSC _ OUT pin of the microprocessor control circuit, and is configured to provide a basic clock signal to the system.
In this embodiment, the RS232 interface circuit is further externally connected to a PC through a T2OUT pin and an R2IN pin of the RS232 interface circuit, so as to implement data transmission between the PC and the microprocessor control circuit.
The utility model discloses a theory of operation and working process as follows: the utility model discloses a microprocessor control circuit adopts the singlechip as the main control unit chip, the singlechip adopts the chip of STM32F103V model, carry out data analysis and operation to the signal of gathering, give-out order and realize the information intercommunication between microprocessor control circuit and the PC, switching signal input circuit is used for to microprocessor control circuit input signal, analog signal sampling circuit can carry out filtering with the signal and handle, power conversion circuit is used for providing 5V and 3.3V voltage, step motor drive circuit is used for providing the drive for step motor, the drive circuit that shifts is used for improving the stability of shifting. Because every keeps off the equal fixed mounting of position and has a hall sensor, hall sensor electric connection has relay blocking circuit, and when hall sensor detected transition signal, relay blocking circuit corresponds the contact closure, and the relay circular telegram is moved. Neutral gear, manual fender, reverse gear, keep off with higher speed, the fender that advances keeps off and slow down keeps off and corresponds "N" in proper order and keeps off, "M" keeps off, "R" keeps off, "+" keeps off, "D" keeps off and "keep off six fender portions, and M keeps off and is manual mode, and the manual pin with the gearbox of user is just pushing away or the reverse thrust, can give the PC and assign the instruction that rises to keep off or subtract the fender, then PC chance control gearbox shifts as required to realize manual shifting, the utility model provides a manual-automatic gearbox drive control circuit can control the gearbox and realize that the process of shifting carries out the control that goes up and down the speed to step motor, sends accurate control execution instruction to actuating mechanism, accomplishes the process of shifting. The voltage converter adopts an MP2359 type chip, the voltage stabilizer adopts an AMS1117 type chip, 12V voltage is firstly converted into 5V voltage through the voltage converter, then the 5V voltage is converted into 3.3V voltage through the capacitor filtering and then the voltage stabilizer, secondary filtering is carried out through the capacitor, and the provided output voltage is ensured to be stable.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.
Claims (10)
1. The manual-automatic transmission drive control circuit is characterized by comprising a microprocessor control circuit, a gear shifting execution circuit, a switch signal input circuit, an analog signal sampling circuit, a power conversion circuit, a stepping motor drive circuit and a gear shifting drive circuit, wherein the gear shifting execution circuit, the switch signal input circuit, the analog signal sampling circuit, the power conversion circuit, the stepping motor drive circuit and the gear shifting drive circuit are electrically connected with the microprocessor control circuit, the microprocessor control circuit is used for analyzing and processing acquired signals, the gear shifting execution circuit is used for executing gear shifting action, the switch signal input circuit is used for inputting signals to the microprocessor control circuit, the analog signal sampling circuit can filter the signals, the power conversion circuit is used for providing 5V and 3.3V voltages, the stepping motor driving circuit is used for providing driving for the stepping motor, and the gear shifting driving circuit is used for improving the stability of gear shifting.
2. The automated manual transmission drive control circuit according to claim 1, wherein the shift execution circuit sequentially sets six gears of neutral, manual, reverse, acceleration, forward and deceleration through pins INB 1-INB 6 of the microprocessor control circuit, each gear is fixedly provided with a hall sensor, the hall sensor is electrically connected with a relay locking circuit, when the hall sensor detects a transition signal, corresponding contacts of the relay locking circuit are closed, and a relay is powered on and acts.
3. The automated manual transmission drive control circuit of claim 1, wherein the microprocessor control circuit is electrically connected with an RS232 interface circuit, the RS232 interface circuit adopts a chip of a MAX3232 type, and a T2IN pin and an R2OUT pin of the RS232 interface circuit are respectively connected with a PA9 pin and a PA10 pin of the microprocessor control circuit.
4. The AMT drive control circuit of claim 1, wherein the switch signal input circuit comprises an eight-way shift lever signal circuit, a four-way shift mode key circuit, a three-way shift motor neutral signal circuit, a two-way forward and backward motor neutral signal circuit, a three-way reserved digital quantity signal input circuit, a four-way brake pedal position signal circuit, a pedal input signal circuit and a potentiometer signal circuit, wherein an output terminal of the four-way shift mode key circuit is connected with pins IN19 to IN112 of the microprocessor control circuit, output terminals of the eight-way shift lever signal circuit are respectively connected with pins IN11 to IN18 of the microprocessor control circuit, an output terminal of the three-way shift motor neutral signal circuit is respectively connected with pins IN113 to IN115 of the microprocessor control circuit, and output terminals of the two-way forward and backward motor neutral signal circuit are respectively connected with pins IN116 of the microprocessor control circuit The output ends of the three paths of reserved digital quantity signal input circuits are respectively connected with pins IN118 to IN120 of the microprocessor control circuit, the output ends of the four paths of brake pedal position signal circuits are respectively connected with pins IN121 to IN124 of the microprocessor control circuit, the output end of the pedal input signal circuit is connected with a pin PA2 of the microprocessor control circuit, and the output end of the potentiometer signal circuit is connected with a pin PA3 of the microprocessor control circuit.
5. The automated manual transmission drive control circuit of claim 1, wherein the analog signal sampling circuit is configured to be four-way for inputting the clutch speed signal, the engine speed signal and two sets of reserved signals, each of the analog signal sampling circuits comprises a comparator and a schmitt trigger buffer, a positive input terminal of the comparator is connected with a signal input terminal, an output terminal of the comparator is connected with an input terminal of the schmitt trigger buffer, the schmitt trigger buffer is used for eliminating interference of the signal input terminal, and the schmitt trigger buffer is connected with pins IN21 to IN24 of the microprocessor control circuit.
6. The automated manual transmission drive control circuit of claim 1, wherein the power conversion circuit comprises a voltage converter and a voltage stabilizer, the voltage converter is used for converting 12V dc voltage into 5V dc voltage, and the 5V dc voltage can be reduced to 3.3V by the voltage stabilizer, so as to output 3.3V stabilized voltage.
7. The automated manual transmission drive control circuit of claim 1, wherein the stepper motor drive circuit is a TB6560AHQ chip.
8. The automated manual transmission drive control circuit of claim 1, wherein the shift drive circuit is an IR2104 type chip, and the shift drive circuit comprises four transistors, and the transistors form an H-bridge drive circuit to control forward rotation or reverse rotation of the motor.
9. The automated manual transmission drive control circuit of claim 1, wherein an external crystal oscillator is connected between an OSC _ IN pin and an OSC _ OUT pin of the microprocessor control circuit.
10. The automated manual transmission drive control circuit of claim 3, wherein the RS232 interface circuit is externally connected with a PC through a T2OUT pin and an R2IN pin of the RS232 interface circuit, so that data transmission between the PC and the microprocessor control circuit is realized.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921026411.2U CN210391008U (en) | 2019-07-03 | 2019-07-03 | Manual-automatic transmission drive control circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921026411.2U CN210391008U (en) | 2019-07-03 | 2019-07-03 | Manual-automatic transmission drive control circuit |
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| CN210391008U true CN210391008U (en) | 2020-04-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998064A (en) * | 2020-07-14 | 2020-11-27 | 宁波高发汽车控制系统股份有限公司 | Manual-automatic gear shifter based on Hall induction |
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2019
- 2019-07-03 CN CN201921026411.2U patent/CN210391008U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998064A (en) * | 2020-07-14 | 2020-11-27 | 宁波高发汽车控制系统股份有限公司 | Manual-automatic gear shifter based on Hall induction |
| CN111998064B (en) * | 2020-07-14 | 2021-11-23 | 宁波高发汽车控制系统股份有限公司 | Manual-automatic gear shifter based on Hall induction |
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