CN211280980U

CN211280980U - New energy automobile vacuum pump controller system

Info

Publication number: CN211280980U
Application number: CN201922477654.4U
Authority: CN
Inventors: 徐振华; 江济龙
Original assignee: Kunshan Xingli Automotive Technology Support Equipment Co ltd
Current assignee: Kunshan Xingli Automotive Technology Support Equipment Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-18
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a new energy automobile vacuum pump controller system, which comprises a single chip microcomputer circuit, wherein the single chip microcomputer circuit is connected with a CAN bus communication circuit, an atmospheric pressure sensor circuit, a vacuum pressure sensor circuit and the single chip microcomputer circuit, CAN bus communication circuit, atmospheric pressure sensor circuit and vacuum pressure sensor circuit are connected with power processing circuit, vacuum pressure sensor is connected with vacuum booster, single chip microcomputer circuit is connected with 1 drive circuit of vacuum pump and 2 drive circuits of vacuum pump, 1 drive circuit of vacuum pump is connected with electron vacuum pump 1, 2 drive circuit of vacuum pump are connected with electron vacuum pump 2, be connected with 1 work current detection circuit of electron vacuum pump between 1 drive circuit of vacuum pump and the single chip microcomputer circuit, be connected with 2 work current detection circuit of electron vacuum pump between 2 drive circuit of vacuum pump and the single chip microcomputer circuit. The utility model discloses with low costs, occupation space is little, and it is more accurate to acquire pressure sensor's signal, and the security is higher, the reliability is stronger.

Description

New energy automobile vacuum pump controller system

Technical Field

The utility model relates to a new energy automobile vacuum boosting braking technique, especially a new energy automobile vacuum pump controller system.

Background

CN105353691B discloses a control circuit, a control method and a device for an electric vacuum pump of an electric vehicle. Wherein, this control circuit includes: the vacuum pump is arranged in a vacuum boosting system of the electric automobile; the relative pressure sensor is arranged in the vacuum power-assisted system and used for acquiring relative pressure signals of a vacuum pump in the vacuum power-assisted system; the absolute pressure sensor is arranged in a vehicle control unit of the electric vehicle and used for acquiring absolute pressure signals when the electric vehicle works; the single chip microcomputer is installed on a control main board of the electric automobile, is respectively connected with the absolute pressure sensor, the relative pressure sensor and the vacuum pump and is used for controlling the starting and stopping of the vacuum pump based on the absolute pressure signal and the relative pressure signal. The technical scheme has the advantages of high cost, large occupied space, low safety and low reliability.

Disclosure of Invention

To the problem that exists among the prior art, the utility model provides a with low costs, occupation space is little, and the signal of acquireing pressure sensor is more accurate, reliable, and the security is higher, the more strong new energy automobile vacuum pump controller system of reliability.

The purpose of the utility model is realized through the following technical scheme.

A vacuum pump controller system of a new energy automobile comprises a single chip microcomputer circuit, wherein the single chip microcomputer circuit is connected with a CAN bus communication circuit, an atmospheric pressure sensor circuit and a vacuum pressure sensor circuit, the single chip circuit, the CAN bus communication circuit, the atmospheric pressure sensor circuit and the vacuum pressure sensor circuit are connected with the power supply processing circuit, the vacuum pressure sensor is connected with a vacuum booster, the singlechip circuit is connected with a drive circuit of the vacuum pump 1 and a drive circuit of the vacuum pump 2, the drive circuit of the vacuum pump 1 is connected with an electronic vacuum pump 1, the drive circuit of the vacuum pump 2 is connected with an electronic vacuum pump 2, a working current detection circuit of the electronic vacuum pump 1 is connected between the drive circuit of the vacuum pump 1 and the singlechip circuit, and a working current detection circuit of the electronic vacuum pump 2 is connected between the drive circuit of the vacuum pump 2 and the single chip microcomputer circuit.

The power supply processing circuit is connected with a voltage detection circuit.

The singlechip circuit is connected with a singlechip mode adjusting circuit.

The power supply processing circuit comprises a first integrated circuit, a first pin of the first integrated circuit is connected with a first capacitor and a second capacitor, the first pin of the first integrated circuit is connected with a twentieth capacitor and a twenty-seventh capacitor through a first inductance coil, the first pin of the first integrated circuit is connected with a twenty-first capacitor and a twenty-second capacitor through a first inductance coil and a first diode in series, and a third pin of the first integrated circuit is connected with a third capacitor and a fifth capacitor respectively.

The voltage detection circuit comprises a fourth capacitor, and a sixteenth resistor is connected in series with the fourth capacitor through a fifteenth resistor and a fourteenth resistor is connected in parallel with the fourth capacitor.

The vacuum pressure sensor circuit comprises a sixth integrated circuit, wherein a first pin, a second pin and a third pin of the sixth integrated circuit are connected, a fourth pin, a fifth pin and a sixth pin of the sixth integrated circuit are connected, a thirty-first capacitor is arranged between the first pin and the sixth pin of the sixth integrated circuit, a seventh pin and an eighth pin of the sixth integrated circuit are connected, the eighth pin of the sixth integrated circuit is respectively connected with a sixth capacitor and a fifth resistor, and the eighth pin of the sixth integrated circuit is connected with a seventh capacitor through a third resistor.

The atmospheric pressure sensor circuit comprises a third integrated circuit, wherein a sixth pin and an eighth pin of the third integrated circuit are connected and then grounded, a seventh pin of the third integrated circuit is connected with an eleventh resistor and then grounded, the third integrated circuit is grounded through an eighteenth resistor and a nineteenth capacitor, a fifth pin of the third integrated circuit is connected with 5V voltage, and a sixth pin of the third integrated circuit is connected with 5V voltage through an eighteenth capacitor.

The single chip microcomputer circuit comprises a fourth integrated circuit, a second pin of the fourth integrated circuit is connected with a third pin through a twenty-sixth capacitor, the second pin of the fourth integrated circuit is grounded through a fifth capacitor, the second pin of the fourth integrated circuit is grounded through a second inductance coil, the 5V voltage is grounded through a twenty-eighth capacitor, a twenty-ninth pin of the fourth integrated circuit is grounded, a twenty-eighth pin of the fourth integrated circuit is grounded, and a tenth capacitor is arranged between the twenty-ninth pin and the twenty-eighth pin of the fourth integrated circuit.

Compared with the prior art, the utility model has the advantages of: the utility model discloses internal integration has vacuum pressure sensor and atmospheric pressure sensor, the pencil between having removed among the current many schemes vacuum pump controller and vacuum pressure sensor and the atmospheric pressure sensor from and the plug-in components etc. be connected, cost and space have not only been saved effectively like this, vacuum pump controller's structure has been simplified, and the accuracy and the reliability of acquireing the pressure sensor signal have been improved, the accuracy of vacuum pump baroceptor signal has been ensured, the distortion of vacuum pressure sensor signal has been reduced effectively, vacuum pump controller's performance has been improved. Meanwhile, the current detection and CAN bus communication functions in the vacuum controller CAN monitor the working state of the electronic vacuum pump and the air tightness of the whole external pipeline system in real time, and CAN also be linked with the ECU of the whole vehicle in real time to ensure the safety and reliability of the whole vacuum power-assisted brake system.

Drawings

Fig. 1 is the block diagram of the new energy automobile vacuum pump controller system of the present invention.

Fig. 2 is a schematic diagram of the power processing circuit of the present invention.

Fig. 3 is a schematic diagram of the voltage detection circuit of the present invention.

Fig. 4 is a schematic diagram of the vacuum pressure sensor circuit of the present invention.

Fig. 5 is a schematic circuit diagram of the atmospheric pressure sensor of the present invention.

Fig. 6 is the schematic diagram of the driving circuit of the electronic vacuum pump 1 and the working current detection circuit of the vacuum pump 1.

Fig. 7 is the circuit schematic diagram of the driving circuit of the electronic vacuum pump 2 and the working current detection circuit of the vacuum pump 2.

Fig. 8 is a schematic diagram of the CAN bus communication circuit of the present invention.

Fig. 9 is a schematic diagram of the circuit of the single chip microcomputer of the present invention.

Fig. 10 is a schematic diagram of the debugging circuit of the single chip microcomputer of the present invention.

Detailed Description

The invention is described in detail below with reference to the drawings and specific examples.

As shown in fig. 1, a new energy automobile vacuum pump controller system includes a single chip microcomputer circuit, the single chip microcomputer circuit is connected with a CAN bus communication circuit (as shown in fig. 8), an atmospheric pressure sensor circuit and a vacuum pressure sensor circuit, the single chip microcomputer circuit, the CAN bus communication circuit, the atmospheric pressure sensor circuit and the vacuum pressure sensor circuit are connected with a power supply processing circuit, the vacuum pressure sensor is connected with a vacuum booster, the single chip microcomputer circuit is connected with a vacuum pump 1 driving circuit and a vacuum pump 2 driving circuit, the vacuum pump 1 driving circuit is connected with an electronic vacuum pump 1, the vacuum pump 2 driving circuit is connected with an electronic vacuum pump 2, a working current detection circuit (as shown in fig. 6) of the electronic vacuum pump 1 is connected between the vacuum pump 1 driving circuit and the single chip microcomputer circuit, and a working current detection circuit (as shown in fig. 7) of the electronic vacuum pump 2 is connected between the Shown).

The singlechip circuit is connected with a singlechip mode adjusting circuit (as shown in figure 10).

As shown in fig. 2, the power processing circuit includes a first integrated circuit, a first pin of the first integrated circuit is connected with a first capacitor and a second capacitor, the first pin of the first integrated circuit is connected with a twentieth capacitor and a twenty-seventh capacitor through a first inductance coil, the first pin of the first integrated circuit is connected in series with a twenty-first capacitor and a twenty-second capacitor through a first inductance coil and a first diode, and a third pin of the first integrated circuit is connected with a third capacitor and a fifth capacitor, respectively.

As shown in fig. 3, the voltage detection circuit includes a fourth capacitor, and the sixteenth resistor is connected in series to the fourth capacitor through a fifteenth resistor, and the fourteenth resistor is connected in parallel to the fourth capacitor.

As shown in fig. 4, the vacuum pressure sensor circuit includes a sixth integrated circuit, the first, second, and third pins of the sixth integrated circuit are connected, the fourth, fifth, and sixth pins of the sixth integrated circuit are connected, a thirty-first capacitor is disposed between the first pin and the sixth pin of the sixth integrated circuit, the seventh and eighth pins of the sixth integrated circuit are connected, the eighth pin of the sixth integrated circuit is connected to a sixth capacitor and a fifth resistor, respectively, and the eighth pin of the sixth integrated circuit is connected to a seventh capacitor through a third resistor.

As shown in fig. 5, the barometric pressure sensor circuit includes a third integrated circuit, a sixth pin and an eighth pin of the third integrated circuit are connected and then grounded, a seventh pin of the third integrated circuit is connected with an eleventh resistor and then grounded, the third integrated circuit is connected with a eighteenth resistor and a nineteenth capacitor and then grounded, a fifth pin of the third integrated circuit is connected with a voltage of 5V, and the sixth pin of the third integrated circuit is connected with a voltage of 5V through an eighteenth capacitor.

As shown in fig. 9, the single chip circuit includes a fourth integrated circuit, a second pin of the fourth integrated circuit is connected to a third pin through a twenty-sixth capacitor, the second pin of the fourth integrated circuit is grounded through a fifth capacitor, the second pin of the fourth integrated circuit is grounded through a second inductor, the 5V voltage is grounded through a twenty-eighth capacitor, a twenty-ninth pin of the fourth integrated circuit is grounded, the twenty-eighth pin of the fourth integrated circuit is grounded, and a tenth capacitor is disposed between the twenty-ninth pin and the twenty-eighth pin of the fourth integrated circuit.

Claims

1. A vacuum pump controller system of a new energy automobile comprises a single chip microcomputer circuit, and is characterized in that the single chip microcomputer circuit is connected with a CAN bus communication circuit, an atmospheric pressure sensor circuit and a vacuum pressure sensor circuit, the single chip circuit, the CAN bus communication circuit, the atmospheric pressure sensor circuit and the vacuum pressure sensor circuit are connected with the power supply processing circuit, the vacuum pressure sensor is connected with a vacuum booster, the singlechip circuit is connected with a drive circuit of the vacuum pump 1 and a drive circuit of the vacuum pump 2, the drive circuit of the vacuum pump 1 is connected with an electronic vacuum pump 1, the drive circuit of the vacuum pump 2 is connected with an electronic vacuum pump 2, a working current detection circuit of the electronic vacuum pump 1 is connected between the drive circuit of the vacuum pump 1 and the singlechip circuit, and a working current detection circuit of the electronic vacuum pump 2 is connected between the drive circuit of the vacuum pump 2 and the single chip microcomputer circuit.

2. The vacuum pump controller system of claim 1, wherein the power processing circuit is connected to a voltage detection circuit.

3. The vacuum pump controller system of the new energy automobile as claimed in claim 1 or 2, wherein the single chip microcomputer circuit is connected with a single chip microcomputer mode adjusting circuit.

4. The vacuum pump controller system of the new energy automobile as claimed in claim 1, wherein the power processing circuit includes a first integrated circuit, a first capacitor and a second capacitor are connected to a first pin of the first integrated circuit, a twentieth capacitor and a twenty-seventh capacitor are connected to the first pin of the first integrated circuit through a first inductance coil, a twenty-first capacitor and a twenty-second capacitor are connected to the first pin of the first integrated circuit through a first inductance coil and a first diode in series, and a third pin of the first integrated circuit is connected to a third capacitor and a fifth capacitor respectively.

5. The vacuum pump controller system of claim 2, wherein the voltage detection circuit comprises a fourth capacitor, and the sixteenth resistor is connected in series to the fourth capacitor through a fifteenth resistor, and the fourteenth resistor is connected in parallel to the fourth capacitor.

6. The vacuum pump controller system of the new energy automobile as claimed in claim 1, wherein the vacuum pressure sensor circuit includes a sixth integrated circuit, a first pin, a second pin and a third pin of the sixth integrated circuit are connected, a fourth pin, a fifth pin and a sixth pin of the sixth integrated circuit are connected, a thirty-one capacitor is arranged between the first pin and the sixth pin of the sixth integrated circuit, a seventh pin and an eighth pin of the sixth integrated circuit are connected, the eighth pin of the sixth integrated circuit is connected with a sixth capacitor and a fifth resistor, respectively, and the eighth pin of the sixth integrated circuit is connected with a seventh capacitor through a third resistor.

7. The vacuum pump controller system of claim 1, wherein the barometric pressure sensor circuit comprises a third integrated circuit, a sixth pin and an eighth pin of the third integrated circuit are connected and then grounded, a seventh pin of the third integrated circuit is connected with an eleventh resistor and then grounded, the third integrated circuit is connected with a eighteenth resistor and a nineteenth capacitor and then grounded, a fifth pin of the third integrated circuit is connected with 5V, and a sixth pin of the third integrated circuit is connected with 5V through an eighteenth capacitor.

8. The vacuum pump controller system of the new energy automobile as claimed in claim 1, wherein the single chip microcomputer circuit includes a fourth integrated circuit, a second pin of the fourth integrated circuit is connected with a third pin through a twenty-sixth capacitor, a second pin of the fourth integrated circuit is grounded through a fifth capacitor, a second pin of the fourth integrated circuit is grounded through a second inductance coil and is connected with 5V voltage, the 5V voltage is grounded after being connected with a twenty-eighth capacitor, a twenty-ninth pin of the fourth integrated circuit is connected with 5V voltage, a twenty-eighth pin of the fourth integrated circuit is grounded, and a tenth capacitor is arranged between the twenty-ninth pin and the twenty-eighth pin of the fourth integrated circuit.