CN210637493U

CN210637493U - Automobile gear shifting box circuit

Info

Publication number: CN210637493U
Application number: CN201921398354.0U
Authority: CN
Inventors: 庞媛媛; 杜万庆; 杨钧; 杜庆丽
Original assignee: Luoyang Yellow River Flexible Shaft Controller Co ltd
Current assignee: Luoyang Yellow River Flexible Shaft Controller Co ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-05-29
Anticipated expiration: 2029-08-27

Abstract

The utility model provides a car box circuit of shifting. The automobile gear shifting box circuit comprises an input module, an ECU module and an output module which are electrically connected in sequence, wherein the input module comprises a P gear signal end, an N gear signal end, a voltage reduction module, a P gear processor and an N gear processor, the output end of the voltage reduction module and the N gear signal end are respectively connected with the input end of the N gear processor, the output end of the N gear processor is respectively connected with the output end of the voltage reduction module and the input end of the ECU module, the P gear signal end is connected with the input end of the P gear processor, and the output end of the P gear processor is respectively connected with the output end of the voltage reduction module and the input end of the ECU module. Compared with the prior art, the utility model provides a car box circuit of shifting can realize many gears and shift under the prerequisite of parking.

Description

Automobile gear shifting box circuit

[ technical field ] A method for producing a semiconductor device

The utility model relates to a car shift control technical field especially relates to a car box circuit of shifting.

[ background of the invention ]

In the new energy automobile, the gear level and the gearbox work in a non-contact induction mode, and the gear level transmits a gear signal to the gearbox through an electronic signal.

In order to sense the position of the shift lever in the gearbox, hall sensors are generally used. It not only can detect the position, can also send the gear signal to the gearbox. However, such a configuration does not allow for multiple gear positions and shifting in parking situations.

Therefore, it is necessary to provide a novel structure of the automobile shift box circuit to solve the above problems.

[ Utility model ] content

The to-be-solved technical problem of the utility model is how to realize many gears and shift under the condition of parking.

The utility model discloses an above-mentioned technical problem is solved to following technical scheme:

the utility model provides a car box circuit of shifting, car box circuit of shifting includes input module, ECU module and the output module of electricity connection in proper order, input module includes P shelves signal end, N shelves signal end, step-down module, P shelves treater and N shelves treater, the output of step-down module with N shelves signal end respectively with the input of N shelves treater is connected, the output of N shelves treater respectively with the output of step-down module with the input of ECU module is connected, P shelves signal end with the input of P shelves treater is connected, the output of P shelves treater respectively with the output of step-down module with the input of ECU module is connected.

Preferably, the voltage reduction module adopts a power supply voltage stabilization module with the model number of MC 7805.

Preferably, the ECU module comprises a single chip microcomputer U2, which is a single chip microcomputer with model number PIC16F 627A.

Preferably, the P-gear processor comprises a photoelectric coupler OC1 with the model of TLP521, a resistor R3, a resistor R4 and a resistor R5, the P-gear signal end is connected with a pin 1 of the photoelectric coupler OC1 through the resistor R3, a pin 2 of the photoelectric coupler OC1 is connected with the resistor R3 through the resistor R5 and is grounded at the pin 2, a pin 3 is grounded at the pin 3, a pin 4 is connected with the output end of the voltage reduction module through the resistor R4 and is connected with a pin 17 of the single chip microcomputer U2; the N-gear processor comprises a photoelectric coupler OC2, a resistor R7 and a resistor R8 of TLP521, the output end of the voltage reduction module is connected with a pin 1 of the photoelectric coupler OC2 through the resistor R8, a pin 2 of the photoelectric coupler OC2 is connected with the N-gear signal end, a pin 3 is grounded, a pin 4 is connected with the output end of the voltage reduction module through a resistor R7, and a pin 4 is connected with a pin 18 of the single chip microcomputer U2.

Preferably, the output module comprises a triode Q1 and a triode Q2 both of which are 2DS667 in model, a relay K1 and a relay K2 both of which are TX2-12V in model, a resistor R5 and a resistor R9, a pin 6 of the single chip microcomputer U2 is connected with a base of the triode Q1 through the resistor R5, an emitter of the triode Q1 is grounded, and a collector of the triode Q1 is connected with the relay K1; the pin 7 of the singlechip U2 is connected with the base electrode of the triode Q2 through the resistor R9, the emitter electrode of the triode Q2 is grounded, and the collector electrode of the triode Q2 is connected with the relay K2.

Compared with the prior art, the circuit of the automobile gear shifting box can realize that the gear can be successfully engaged only under the condition of parking when the gear is engaged; otherwise, the gear engaging and shifting are invalid; when the gear shifting is invalid, outputting a low level signal to the instrument to display that the gear is invalid; when the gear shifting is effective, a high level signal is output to the instrument, and the gear is displayed to be effective.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a block diagram of a circuit of a shift box of an automobile according to the present invention;

fig. 2 is a schematic diagram of a circuit of the gear shifting box of the automobile provided by the utility model;

FIG. 3 is an enlarged view at III of FIG. 2;

FIG. 4 is an enlarged view at IV in FIG. 2;

fig. 5 is an enlarged view of fig. 2 at V.

[ detailed description ] embodiments

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 efforts belong to the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a block diagram of a circuit of a shift box for an automobile according to the present invention. The utility model provides a car box circuit 100 that shifts, car box circuit 100 that shifts includes input module 1, ECU module 2 and the output module 3 that electricity is connected in proper order.

Input module 1 includes P shelves signal terminal 111, N shelves signal terminal 112, P shelves treater 121, N shelves treater 122 and step-down module 13, step-down module 13's output with N shelves signal terminal 112 respectively with N shelves treater 122's input is connected, N shelves treater 122's output respectively with step-down module 13's output with ECU module 2's input is connected, P shelves signal terminal 111 with P shelves treater 121's input is connected, P shelves treater 121's output respectively with step-down module 13's output with ECU module 2's input is connected.

Referring to fig. 2-5, fig. 2 is a schematic circuit diagram of the shift box of the present invention; FIG. 3 is an enlarged view at III of FIG. 2; FIG. 4 is an enlarged view at IV in FIG. 2; fig. 5 is an enlarged view of fig. 2 at V. Namely, fig. 2 is an overall schematic diagram of the circuit of the automobile gear shifting box; FIG. 3 is a schematic diagram of an input module; FIG. 4 is a schematic diagram of the ECU module; fig. 5 is a schematic diagram of an output module.

The P-gear processor 121 comprises a photoelectric coupler OC1 with the model of TLP521, a resistor R3, a resistor R4 and a resistor R5; the N-gear processor comprises a photoelectric coupler OC2 with the model of TLP521, a resistor R7 and a resistor R8; the voltage reduction module 13 adopts a power supply voltage stabilization module with the model number of MC7805, and the voltage reduction module 13 reduces a 12V power supply on the electric automobile to 5V for supplying power to the ECU module 2 and the input module 1; the ECU module comprises a single chip microcomputer U2, which adopts a single chip microcomputer with the model number of PIC16F 627A.

The parking signal P of the P-gear signal end 111 is connected with a pin 1 of the photoelectric coupler OC1 through the resistor R3, a pin 2 of the photoelectric coupler OC1 is connected with the resistor R3 through the resistor R5, the pin 2 is grounded, a pin 3 is grounded, a pin 4 is connected with the output end of the voltage reduction module through the resistor R4, and the pin 4 is connected with a pin 17 of the single chip microcomputer U2;

the neutral signal N of the N-shift signal end 112 is connected to pin 2 of the photoelectric coupler OC2, the output end of the voltage reduction module 13 is connected to pin 1 of the photoelectric coupler OC2 through the resistor R8, pin 3 of the photoelectric coupler OC2 is grounded, pin 4 is connected to the output end of the voltage reduction module 13 through the resistor R7, and pin 4 is connected to pin 18 of the single chip microcomputer U2.

The ECU module 2 controls the output module 3 to output corresponding gears according to the information of the pins 17 and 18 of the single chip microcomputer U2. The 4-pin of the singlechip U2 is connected with the clock circuit MCLK, and the 5-pin is grounded.

The output module 3 comprises a triode Q1 and a triode Q2 which are both 2DS667 in model numbers, a relay K1 and a relay K2 which are both TX2-12V in model numbers, a resistor R5, a resistor R9, a diode D1 and a diode D2 which are respectively used for protecting the relay K1 and the relay K2, a capacitor C6 and a capacitor C8. The pin 6 of the single chip microcomputer U2 is respectively connected with the base electrode of the triode Q1 and the capacitor C6 after passing through the resistor R5, the capacitor C6 is grounded, the emitter electrode of the triode Q1 is grounded, the collector electrode of the triode Q1 is connected with the relay K1, two ends of the coil of the relay K1 are connected with a reverse diode D2 to protect the relay K1, and the pin 7 of the relay K1 is connected with a +12V power supply; the 7 feet of the single chip microcomputer U2 are connected with the base electrode of the triode Q2 and the capacitor R8 respectively after being connected through the resistor R9, the capacitor R8 is grounded, the emitter electrode of the triode Q2 is grounded, the collector electrode of the triode Q2 is connected with the relay K2, two ends of the coil of the relay K1 are connected with the backward diode D2 to protect the relay K1, and the 7 feet of the relay K1 are connected with a +12V power supply.

The base electrodes of the triode Q1 and the triode Q2 receive a driving signal output by an I/O port of the singlechip U2 and then control the relay K1 and the relay K2 to act, and further output a gear shifting enabling signal.

The output module 3 further includes a display module 31, the display module 31 displays a gear output state according to the gear shift enabling signal, when the gear is successfully engaged, the display module 31 outputs a signal to display that the gear is successfully engaged for the user, and when the gear is failed, the display module 31 outputs a signal to display that the gear is failed for the user.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. The utility model provides a car box circuit of shifting, its characterized in that, car box circuit of shifting includes input module, ECU module and the output module of electricity connection in proper order, input module includes P shelves signal terminal, N shelves signal terminal, step-down module, P shelves treater and N shelves treater, step-down module's output with N shelves signal terminal respectively with the input of N shelves treater is connected, the output of N shelves treater respectively with the output of step-down module with the input of ECU module is connected, P shelves signal terminal with the input of P shelves treater is connected, the output of P shelves treater respectively with the output of step-down module with the input of ECU module is connected.

2. The vehicle shift box circuit of claim 1, wherein the buck module is a power regulator module model MC 7805.

3. The vehicle shift box circuit of claim 1, wherein the ECU module includes a single chip microcomputer U2, which is a model PIC16F627A single chip microcomputer.

4. The automobile shift box circuit according to claim 3, wherein the P-gear processor comprises a photoelectric coupler OC1, a resistor R3, a resistor R4 and a resistor R5 of TLP521, the P-gear signal end is connected with a pin 1 of the photoelectric coupler OC1 through a resistor R3, a pin 2 of the photoelectric coupler OC1 is connected with the resistor R3 through a resistor R5 and is grounded at the pin 2, the pin 3 is grounded at the pin 4, the pin 4 is connected with the output end of the voltage reduction module through a resistor R4 and is connected with a pin 17 of the singlechip U2;

the N-gear processor comprises a photoelectric coupler OC2, a resistor R7 and a resistor R8 of TLP521, the output end of the voltage reduction module is connected with a pin 1 of the photoelectric coupler OC2 through the resistor R8, a pin 2 of the photoelectric coupler OC2 is connected with the N-gear signal end, a pin 3 is grounded, a pin 4 is connected with the output end of the voltage reduction module through a resistor R7, and a pin 4 is connected with a pin 18 of the single chip microcomputer U2.

5. The automobile gear shifting box circuit according to claim 3, wherein the output module comprises a triode Q1 and a triode Q2 which are both 2DS667, a relay K1 and a relay K2 which are both TX2-12V, a resistor R5 and a resistor R9, a pin 6 of the singlechip U2 is connected with a base of the triode Q1 through the resistor R5, an emitter of the triode Q1 is grounded, and a collector of the triode Q1 is connected with the relay K1; the pin 7 of the singlechip U2 is connected with the base electrode of the triode Q2 through the resistor R9, the emitter electrode of the triode Q2 is grounded, and the collector electrode of the triode Q2 is connected with the relay K2.