CN215172158U - Gear shifting execution control system of gear shifter - Google Patents
Gear shifting execution control system of gear shifter Download PDFInfo
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- CN215172158U CN215172158U CN202120855174.1U CN202120855174U CN215172158U CN 215172158 U CN215172158 U CN 215172158U CN 202120855174 U CN202120855174 U CN 202120855174U CN 215172158 U CN215172158 U CN 215172158U
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Abstract
The utility model belongs to the technical field of selector electronic control, a gear shift execution control system of gear shifter is provided, include: the device comprises a control module, a sensing detection module, a motor driving module and a signal input/output module; the sensing detection module, the motor driving module and the signal input/output module are all connected with the control module, the motor driving module is used for controlling the motor to rotate according to a control signal sent by the control module, the sensing detection module is used for detecting the rotation angle of the motor, and the signal input/output module is used for outputting information received by the control module. The utility model has the advantages of through the drive control of motor in predrive chip and the full-bridge drive unit control gear shift executor for the rotation of motor is more accurate, and then improves the smoothness degree of vehicle gear shift, the utility model discloses still gather the positional information of motor in real time through hall sensor to feed back to control chip U1A, make control chip can carry out accurate control to the gear shift.
Description
Technical Field
The utility model relates to a selector electronic control technical field especially relates to a gear shift execution control system of selector.
Background
The automobile gear shifter is a necessary component of a modern automobile, and the gear shifter is matched with a gearbox to finish the matching of the rotating speed of an automobile engine and the rotating speed of wheels through the action of hands, so that the automobile can give consideration to both large torque in low-speed running and high speed in high-speed running. With the change of social requirements, the gear shifter itself is gradually developed from the original manual gear only to the current manual-automatic mode, and the gear shifting mode also ranges from a simple mechanical type cable to the current electronic gear shifting mode.
The electronic gear shifting system is usually controlled by driving a gear shifting rod through a motor, but the precision of the gear shifting control and the protection of the motor are insufficient.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the present invention is to provide a shift execution control system for a gear shifter, which is used to solve the problem of insufficient precision of shift control;
in order to realize the purpose, the utility model discloses a technical scheme be:
a shift execution control system of a shifter, comprising: the device comprises a control module, a sensing detection module, a motor driving module and a signal input/output module;
the sensing detection module, the motor driving module and the signal input/output module are all connected with the control module, the motor driving module is used for controlling the motor to rotate according to a control signal sent by the control module, the sensing detection module is used for detecting the rotation angle of the motor, and the signal input/output module is used for outputting information received by the control module.
Further, the control module comprises a control chip U1A, a peripheral circuit, a power input and conversion unit and a voltage sampling unit;
the power supply input and conversion unit is used for inputting power supply to the control chip U1A, and converting the input power supply into a first output power supply through a power supply chip built in the control chip U1A, wherein the output power supply is used for supplying power to the motor driving module;
and the voltage sampling unit is connected with the control chip U1A and is used for acquiring the working state of the output power supply.
Further, the voltage sampling unit comprises a first voltage sampling circuit, and the first voltage sampling circuit is connected with a second pin of the control chip U1A;
the first voltage sampling circuit comprises a resistor R4A, a capacitor C13A, a triode Q1A, a resistor R9A, a resistor R6A, a diode D1A, a zener diode DZ1A, a capacitor C12A and a capacitor C14A;
one end of the resistor R4A is connected with the power input and conversion unit, and the other end is connected with the second pin of the control chip U1A; the second pin of the control chip U1A is further connected to the collector of the transistor Q1A, one end of the capacitor C13A is connected to the collector of the transistor Q1A, the other end is connected to the emitter of the transistor Q1A, and the emitter of the transistor Q1A is also grounded; the base of the triode Q1A is connected with one end of a resistor R6A, the other end of the resistor R6A is connected with the cathode of a diode D1A, the two ends of a resistor R9A are respectively connected with the base and the emitter of the triode Q1A, the anode of a diode D1A is connected with one end of a capacitor C12A, the other end of the capacitor C12A is grounded through a capacitor C14A, one end of a zener diode DZ1A is connected with the anode of a diode D1A, and the other end of the zener diode DZ1A is grounded.
Further, the voltage sampling unit further comprises a second voltage sampling circuit, and the second voltage sampling circuit is connected with a twenty-second pin of the control chip U1A;
the second voltage sampling circuit comprises a resistor R1A, a resistor R2A, a capacitor C9A and a diode Z1A;
the cathode of the diode Z1A is connected with the twenty-second pin of the control chip U1A, the anode of the diode Z1A is grounded, the capacitor C9A is connected in parallel with two ends of the diode Z1A, the resistor R2A is connected in parallel with two ends of the capacitor C9A, one end of the resistor R1A is connected with the twenty-second pin of the control chip U1A, and the other end of the resistor R1A is connected with the power supply.
Further, the motor driving module comprises a driving control unit, a power supply reverse connection prevention unit and a full-bridge driving unit;
the drive control unit comprises a pre-drive control chip U1C and peripheral circuits thereof, the pre-drive control chip U1C is respectively connected with the control chip U1A and the full-bridge drive unit, and the power supply reverse connection prevention unit is connected with the full-bridge drive unit.
Further, the full-bridge driving unit comprises a MOS transistor Q5C, a MOS transistor Q4C, a MOS transistor Q7C and a MOS transistor Q6C; MOS pipe Q5C is connected with output power supply, predrive control chip U1C's fourteenth pin and the anodal of motor respectively, MOS pipe Q4C is connected with output power supply, predrive control chip U1C's seventeenth pin and the negative pole of motor respectively, MOS pipe Q7C is connected with output power supply, predrive control chip U1C's twenty-first pin and the anodal of motor respectively, MOS pipe Q6C is connected with output power supply, predrive control chip U1C's twenty-second pin and the negative pole of motor respectively.
Furthermore, the sensing detection module comprises a sensing power supply conversion unit and a sensing signal input unit;
the sensing power supply conversion unit is used for converting the output power supply into a working power supply required by the sensor and supplying power to the sensor;
and the sensing signal input unit is connected with the sensor and is used for transmitting the signal acquired by the sensor to the control chip U1A.
Furthermore, the signal input and output module comprises a PWM signal input unit and a P-gear signal output unit;
the PWM signal input unit and the P-gear signal output unit are electrically connected with the control chip U1A.
The CAN communication module is electrically connected with the control module;
the CAN communication module is used for sending vehicle information to the control chip U1A and sending motor information received by the control chip U1A to a vehicle control center.
Compared with the prior art, the utility model, contain following beneficial effect at least:
(1) the utility model collects the power supply voltage information in real time through the voltage sampling unit, and the control chip U1A can timely perform corresponding processing to the power supply problem;
(2) the utility model discloses a pre-drive chip and full-bridge drive unit control shift actuator in the drive control of motor for the rotation of motor is more accurate, and then improves the smoothness degree of vehicle shift;
(3) the utility model discloses a hall sensor gathers the positional information of motor in real time to feed back to control chip U1A, make control chip can carry out accurate control to the gear shift.
Drawings
Fig. 1 is an overall structural frame diagram of an embodiment of the present invention;
fig. 2 is a circuit diagram of a control module and a CAN communication module in an embodiment of the present invention;
fig. 3 is a circuit diagram of a motor driving module according to an embodiment of the present invention;
fig. 4 is a circuit diagram of a sensing module according to an embodiment of the present invention;
fig. 5 is a circuit diagram of a signal input/output module according to an embodiment of the present invention.
Detailed Description
The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, the present invention relates to a shift execution control system for a gear shifter, which comprises a control module, a sensing module, a motor driving module and a signal input/output module.
The sensing detection module, the motor driving module and the signal input/output module are all connected with the control module, the motor driving module is used for controlling the motor to rotate according to a control signal sent by the control module, the sensing detection module is used for detecting the rotation angle of the motor, and the signal input/output module is used for outputting information received by the control module.
Specifically, as shown in fig. 2, the control module includes a control chip U1A, a peripheral circuit, a power input and conversion unit, and a voltage sampling unit;
the chip model of the control chip U1A is S912ZVC12F0VKHr, the peripheral circuits of the control chip U1A comprise a crystal oscillator circuit, a reset circuit and the like, and the crystal oscillator circuit is connected with the sixth pin and the seventh pin of the control chip U1A.
The power input and conversion unit is used for filtering and rectifying a KL30 input power through a voltage stabilizing diode DZ1C, a plurality of capacitors and an inductor L1C, and obtaining an input power voltage VSUP through the opening of a MOS transistor Q1C.
The input power supply voltage VSUP is input to the control chip U1A through the filtering of a plurality of capacitors again, the input power supply is converted into a first output power supply, namely 5V voltage, through a power supply chip arranged in the control chip U1A, and the 5V output power supply is used for supplying power to the motor driving module;
and the voltage sampling unit is connected with the control chip U1A and is used for acquiring the working state of the output power supply.
The voltage sampling unit comprises a first voltage sampling circuit and a second voltage sampling circuit, wherein the first voltage sampling circuit comprises a resistor R4A, a capacitor C13A, a triode Q1A, a resistor R9A, a resistor R6A, a diode D1A, a zener diode DZ1A, a capacitor C12A and a capacitor C14A.
One end of the resistor R4A is connected with the power input and conversion unit, and the other end is connected with the second pin of the control chip U1A; the second pin of the control chip U1A is further connected to the collector of the transistor Q1A, one end of the capacitor C13A is connected to the collector of the transistor Q1A, the other end is connected to the emitter of the transistor Q1A, and the emitter of the transistor Q1A is also grounded; the base of the triode Q1A is connected with one end of a resistor R6A, the other end of the resistor R6A is connected with the cathode of a diode D1A, the two ends of a resistor R9A are respectively connected with the base and the emitter of the triode Q1A, the anode of a diode D1A is connected with one end of a capacitor C12A, the other end of the capacitor C12A is grounded through a capacitor C14A, one end of a zener diode DZ1A is connected with the anode of a diode D1A, and the other end of the zener diode DZ1A is grounded.
The second voltage sampling circuit comprises a resistor R1A, a resistor R2A, a capacitor C9A and a diode Z1A, wherein the cathode of the diode Z1A is connected with the twenty-second pin of the control chip U1A, the anode of the diode Z1A is grounded, the capacitor C9A is connected with two ends of the diode Z1A in parallel, the resistor R2A is connected with two ends of the capacitor C9A in parallel, one end of the resistor R1A is connected with the twenty-second pin of the control chip U1A, and the other end of the resistor R1A is connected with a power supply.
The voltage sampling unit is through gathering output voltage's operating condition, and control chip U1A just can judge the operating condition of each power, avoids taking place the outage condition.
One end of the CAN communication module is connected with a twenty-eighth pin, a twenty-ninth pin and a thirty-first pin of the control chip U1A, and the other end of the CAN communication module is connected with a CAN communication bus.
The CAN communication module is used for sending vehicle information, such as vehicle speed information and the like to the control chip U1A, the control chip U1A CAN judge whether a gear needs to be replaced or not according to the vehicle speed information, and the CAN communication module CAN also lower motor information received by the control chip U1A and send the motor information to a vehicle control center.
As shown in fig. 3, the motor driving module includes a driving control unit, a power supply reverse connection prevention unit, and a full bridge driving unit.
The drive control unit comprises a pre-drive control chip U1C and a peripheral circuit thereof, the chip model of the pre-drive control chip U1C is MLX83100LGO-DCA-000-SP, a first pin, a second pin, a ninth pin and a tenth pin of the pre-drive control chip U1C are respectively connected with a forty-first pin, a sixteenth pin, a thirty-ninth pin and a fifty-fourth pin of the control chip U1A, a fourteenth pin, a seventeenth pin, a twenty-first pin and a twenty-second pin of the pre-drive control chip U1C are all connected with the full-bridge drive unit, and the power supply reverse connection prevention unit is also connected with the full-bridge drive unit.
The power supply reverse connection prevention unit comprises a triode Q3C, a resistor R4C, a diode Z2C, a resistor R3C, a MOS transistor Q2C, a resistor R6C, a resistor R7C, a capacitor C22C and a diode Z3C.
The base of the triode Q3C is connected with the tenth pin of the control chip U1A, and the anode of the diode Z3C is connected with the fourteenth pin of the control chip U1A.
Under the normal condition, the tenth pin of control chip U1A sends low level signal and makes triode Q3C turn-off, and then make mains voltage transmit to the full-bridge drive unit through MOS pipe Q2C, and send feedback signal to control chip U1A through the fourteenth pin of control chip U1A, when the power reversal condition appears, send abnormal conditions to control chip U1A, the tenth pin through control chip U1A outputs high level signal and makes triode Q3C switch on, make MOS pipe Q2C turn-off, the power just can't transmit to the full-bridge drive unit.
The full-bridge driving unit comprises an MOS transistor Q5C, an MOS transistor Q4C, an MOS transistor Q7C and an MOS transistor Q6C; MOS pipe Q5C is connected with output power supply, predrive control chip U1C's fourteenth pin and the anodal of motor respectively, MOS pipe Q4C is connected with output power supply, predrive control chip U1C's seventeenth pin and the negative pole of motor respectively, MOS pipe Q7C is connected with output power supply, predrive control chip U1C's twenty-first pin and the anodal of motor respectively, MOS pipe Q6C is connected with output power supply, predrive control chip U1C's twenty-second pin and the negative pole of motor respectively.
When the motor needs to rotate forwards, the fourteenth pin and the seventeenth pin of the pre-drive control chip U1C send high level signals to enable the MOS transistor Q5C and the MOS transistor Q6C to be switched on, and then power energy can pass through the MOS transistor Q5C, the motor and the MOS transistor Q6C, so that the motor rotates forwards.
When the motor needs to be reversed, the twenty-first pin and the twenty-second pin of the pre-drive control chip U1C send high level signals to enable the MOS transistor Q4C and the MOS transistor Q7C to be switched on, and then power energy can pass through the MOS transistor Q4C, the motor and the MOS transistor Q7C to enable the motor to be reversed.
As shown in fig. 3, the sensing detection module includes a sensing power conversion unit and a sensing signal input unit. The sensing power supply conversion unit is used for converting the output power supply into a working power supply required by the sensor and supplying power to the sensor. The sensing power conversion unit comprises a power conversion chip U1B and peripheral circuits thereof, and converts an input power voltage VSUP into a 5V power supply required by the operation of the sensor through the power conversion chip U1B.
The sensing signal input unit is connected with a sensor, and is used for transmitting the signal acquired by the sensor to the control chip U1A, and the sensor is a Hall sensor.
The utility model discloses a hall sensor gathers the positional information of motor in real time to feed back to control chip U1A, make control chip can carry out accurate control to the gear shift.
The sensing signal input unit comprises a capacitor C1D, a capacitor C3D, an electrostatic protection diode D1D, a resistor R1D, a resistor R2D, a resistor R3D, a resistor R4D, a capacitor C2D and a capacitor C4D.
The capacitor C1D and the capacitor C3D are both connected with the sensor, the capacitor C2D and the capacitor C4D are respectively connected with a sixteenth pin and a fifteenth pin of the control chip U1A, and motor position information acquired by the sensor is subjected to low-pass filtering by the circuit and then transmitted to the control chip U1A, so that the control chip U1A can judge whether the rotation angle of the motor is in accordance with expectation according to the motor position information acquired by the sensor.
As shown in fig. 5, the signal input and output module includes a PWM signal input unit and a P-range signal output unit; the PWM signal input unit and the P-gear signal output unit are electrically connected with the control chip U1A.
The PWM signal input unit comprises a capacitor C1E, a voltage stabilizing diode D1E, a resistor R1E, a resistor R2E and a capacitor C2E, wherein one end of the capacitor C1E is connected with an external signal output end, one end of the capacitor C2E is connected with a fifty-third pin of a control chip U1A, the unit receives an external signal input and enables an external PWM signal to be sent to the control chip U1A through low-pass filtering, and the control chip U1A conducts corresponding processing according to the external signal.
The P-gear signal output unit comprises a triode Q1F, a triode Q2F, a resistor R1F, a diode Q1F, a resistor R2F, a resistor R3F, a capacitor C2F, a diode Z1F and a capacitor C1F, the base of the triode Q2F is connected with the eleventh pin of the control chip U1A, the negative electrode of the diode D1F outputs a P-gear signal, and the end, connected with the negative electrode of the zener diode Z1F, of the capacitor C1F is connected with the seventeenth pin of the control chip U1A.
When the P range is turned on, the base of the transistor Q2F receives the low level signal sent by the control chip U1A, and turns off the transistor Q2F, so that the transistor Q1F is turned on, and a high level signal can be output through the P _ OUT port, that is, the P range state is shown, and the P range signal is fed back to the control chip U1A through the P _ OUT _ AD port.
When the non-P-range state is reached, the transistor Q2F is turned on, and the P _ OUT port will not output the P-range signal.
The utility model collects the power supply voltage information in real time through the voltage sampling unit, and the control chip U1A can timely perform corresponding processing to the power supply problem; the driving control of the motor in the gear shifting actuator is controlled through the pre-driving chip and the full-bridge driving unit, so that the rotation of the motor is more accurate, and the smoothness of the gear shifting of the vehicle is improved.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (9)
1. A shift execution control system for a shifter, comprising: the device comprises a control module, a sensing detection module, a motor driving module and a signal input/output module;
the sensing detection module, the motor driving module and the signal input/output module are all connected with the control module, the motor driving module is used for controlling the motor to rotate according to a control signal sent by the control module, the sensing detection module is used for detecting the rotation angle of the motor, and the signal input/output module is used for outputting information received by the control module.
2. The shift execution control system of a shifter of claim 1, wherein the control module includes a control chip U1A and peripheral circuitry, a power input and conversion unit and a voltage sampling unit;
the power supply input and conversion unit is used for inputting power supply to the control chip U1A, and converting the input power supply into a first output power supply through a power supply chip built in the control chip U1A, wherein the output power supply is used for supplying power to the motor driving module;
and the voltage sampling unit is connected with the control chip U1A and is used for acquiring the working state of the output power supply.
3. The shift execution control system of a shifter of claim 2, wherein the voltage sampling unit includes a first voltage sampling circuit coupled to the second pin of the control chip U1A;
the first voltage sampling circuit comprises a resistor R4A, a capacitor C13A, a triode Q1A, a resistor R9A, a resistor R6A, a diode D1A, a zener diode DZ1A, a capacitor C12A and a capacitor C14A;
one end of the resistor R4A is connected with the power input and conversion unit, and the other end is connected with the second pin of the control chip U1A; the second pin of the control chip U1A is further connected to the collector of the transistor Q1A, one end of the capacitor C13A is connected to the collector of the transistor Q1A, the other end is connected to the emitter of the transistor Q1A, and the emitter of the transistor Q1A is also grounded; the base of the triode Q1A is connected with one end of a resistor R6A, the other end of the resistor R6A is connected with the cathode of a diode D1A, the two ends of a resistor R9A are respectively connected with the base and the emitter of the triode Q1A, the anode of a diode D1A is connected with one end of a capacitor C12A, the other end of the capacitor C12A is grounded through a capacitor C14A, one end of a zener diode DZ1A is connected with the anode of a diode D1A, and the other end of the zener diode DZ1A is grounded.
4. The shift execution control system of a shifter of claim 3, wherein the voltage sampling unit further includes a second voltage sampling circuit, the second voltage sampling circuit being coupled to the twenty-second pin of the control chip U1A;
the second voltage sampling circuit comprises a resistor R1A, a resistor R2A, a capacitor C9A and a diode Z1A;
the cathode of the diode Z1A is connected with the twenty-second pin of the control chip U1A, the anode of the diode Z1A is grounded, the capacitor C9A is connected in parallel with two ends of the diode Z1A, the resistor R2A is connected in parallel with two ends of the capacitor C9A, one end of the resistor R1A is connected with the twenty-second pin of the control chip U1A, and the other end of the resistor R1A is connected with the power supply.
5. The shift execution control system of a shifter of claim 2, wherein the motor drive module includes a drive control unit, a power supply reverse connection prevention unit, and a full bridge drive unit;
the drive control unit comprises a pre-drive control chip U1C and peripheral circuits thereof, the pre-drive control chip U1C is respectively connected with the control chip U1A and the full-bridge drive unit, and the power supply reverse connection prevention unit is connected with the full-bridge drive unit.
6. The shift execution control system of a shifter of claim 5, wherein the full bridge drive unit includes MOS transistor Q5C, MOS transistor Q4C, MOS transistor Q7C and MOS transistor Q6C; MOS pipe Q5C is connected with output power supply, predrive control chip U1C's fourteenth pin and the anodal of motor respectively, MOS pipe Q4C is connected with output power supply, predrive control chip U1C's seventeenth pin and the negative pole of motor respectively, MOS pipe Q7C is connected with output power supply, predrive control chip U1C's twenty-first pin and the anodal of motor respectively, MOS pipe Q6C is connected with output power supply, predrive control chip U1C's twenty-second pin and the negative pole of motor respectively.
7. The shift execution control system of a shifter of claim 2, wherein the sensing module includes a sensing power conversion unit and a sensing signal input unit;
the sensing power supply conversion unit is used for converting an output power supply into a working power supply required by the sensor and supplying power to the sensor;
the sensing signal input unit is connected with the sensor and used for transmitting the signals collected by the sensor to the control chip U1A.
8. The shift execution control system of a shifter of claim 2, wherein the signal input output module includes a PWM signal input unit and a P-range signal output unit;
the PWM signal input unit and the P-gear signal output unit are electrically connected with the control chip U1A.
9. The shift execution control system of a shifter of claim 1, further comprising a CAN communication module electrically connected to the control module;
the CAN communication module is used for sending vehicle information to the control chip U1A and sending motor information received by the control chip U1A to a vehicle control center.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120855174.1U CN215172158U (en) | 2021-04-25 | 2021-04-25 | Gear shifting execution control system of gear shifter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120855174.1U CN215172158U (en) | 2021-04-25 | 2021-04-25 | Gear shifting execution control system of gear shifter |
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| CN215172158U true CN215172158U (en) | 2021-12-14 |
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