Vacuum pump control system, control method and automobile

Abstract

The invention discloses a vacuum pump control system and method and an automobile, and belongs to the technical field of automobile control. The method comprises the steps that a vehicle control unit judges whether the absolute value of the internal pressure of a vacuum pump is smaller than a first threshold value or not, if yes, whether the vacuum pump is started or not is judged, and if not, the vacuum pump is controlled to be started; starting a timer to accumulatively record the working time of the vacuum pump; when the vacuum pump works for first preset time, judging whether the absolute value of the internal pressure of the vacuum pump is greater than a second threshold, if not, judging whether the absolute value of the internal pressure of the vacuum pump is not less than the first threshold when the vacuum pump works for second preset time, and if so, judging whether the absolute value of the internal pressure of the vacuum pump works for third preset time; whether the absolute value of the internal pressure of the vacuum pump is smaller than a first threshold value or not is judged, and if yes, the vehicle control unit controls the vacuum pump to be closed and inputs vacuum pump constant rotation fault information to the automobile instrument module. The purposes of reducing cost and increasing efficiency can be achieved on the basis that the functions of the whole vehicle are guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile control, and in particular, relates to a vacuum pump control system, a control method and an automobile. Background Art

[0002] With the popularization of new energy vehicles, competition among various OEMs has become increasingly fierce, and technical competition and price competition are continuing. This puts relatively high demands on various components of new energy vehicles. Products with high technological content and high cost performance are the key development direction of various components.

[0003] Patent CN108437966A discloses a method for detecting the performance of an electric vehicle vacuum pump based on a vehicle controller, including an offline detection device, a vehicle controller, a vacuum pump, and a vacuum pressure sensor; and performing the following steps: the offline detection device sends a vacuum pump on / off control instruction to the vehicle controller; the vehicle controller controls the vacuum pump to perform corresponding operations according to the instruction; the vehicle controller determines whether the performance of the vacuum pump is normal based on the vacuum pressure value information collected by the vacuum pressure sensor.

[0004] However, the technology disclosed in the above patent cannot achieve cost reduction and efficiency improvement while ensuring the functionality of the entire vehicle. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a vacuum pump control system, a control method and a vehicle in view of the deficiencies in the prior art, so as to achieve the purpose of reducing costs and increasing efficiency on the basis of ensuring the functions of the entire vehicle.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] The present invention provides a vacuum pump control system, comprising a vehicle controller, a vacuum pump, a vacuum pressure sensor, and an automobile instrument module. The vehicle controller is connected to the vacuum pump; the vehicle controller is connected to the vacuum pressure sensor; and the vehicle controller is connected to the automobile instrument module.

[0008] Furthermore, the system also includes a vacuum pump controller, which is integrated in the vehicle controller; the vacuum pump controller is connected to the vacuum pump.

[0009] Furthermore, the vacuum pressure sensor collects the vacuum pressure signal inside the vacuum pump and inputs it into the vehicle controller.

[0010] Furthermore, when the vehicle controller determines that the voltage of the vacuum pressure signal is less than the first voltage threshold or greater than the second voltage threshold, the vehicle controller sets a fault for the vacuum pressure sensor.

[0011] Furthermore, when the vehicle controller performs a fault setting for the vacuum pressure sensor, the fault count of the fault setting counter in the vehicle controller is increased by 1 each cycle. When the fault count of the fault setting counter accumulates to the fault count threshold, the vehicle controller determines that the vacuum pressure sensor is faulty and inputs the information of the vacuum pressure sensor fault to the vehicle instrument module.

[0012] Further, the failure count threshold is 50.

[0013] Further, the first voltage threshold is 1.2 volts; the second voltage threshold is 4.95 volts.

[0014] The present invention also provides a vacuum pump control method, which comprises the following steps:

[0015] S1: The vehicle controller determines whether the absolute value of the internal pressure of the vacuum pump is less than the first threshold value. If so, it enters S2; if not, it enters S10;

[0016] S2: The vehicle controller determines whether the vacuum pump is turned on. If not, it goes to S3. If so, it goes to S4.

[0017] S3: The vehicle controller controls to start the vacuum pump;

[0018] S4: The vehicle controller starts the timer to cumulatively record the working time of the vacuum pump;

[0019] S5: When the timer accumulates and records the first preset working time of the vacuum pump, the vehicle controller determines whether the absolute value of the internal pressure of the vacuum pump is greater than the second threshold value. If not, the process proceeds to S6; if yes, the process proceeds to S9;

[0020] S6: When the timer cumulatively records the second preset working time of the vacuum pump, the vehicle controller determines whether the absolute value of the internal pressure of the vacuum pump is not less than the first threshold value. If not, the process proceeds to S7; if yes, the process proceeds to S9;

[0021] S7: When the timer cumulatively records the third preset working time of the vacuum pump, the vehicle controller determines whether the absolute value of the internal pressure of the vacuum pump is less than the first threshold value. If so, the process proceeds to S8; if not, the process proceeds to S10;

[0022] S8: The vehicle controller controls to shut down the vacuum pump and inputs the information of the vacuum pump's constant running fault to the vehicle instrument module; then enters S10;

[0023] S9: The vehicle controller controls the timer to reset and turns off the vacuum pump;

[0024] S10: End.

[0025] Furthermore, the first preset time is 15 seconds; the second preset time is 30 seconds; and the third preset time is 60 seconds.

[0026] In addition, the present invention also provides a car, which is equipped with the above-mentioned vacuum pump control system and is controlled by the above-mentioned vacuum pump control method.

[0027] The vacuum pump control system and control method of the present invention have the following advantages:

[0028] (1) The vacuum pump control system and control method of the present invention can achieve cost reduction and efficiency improvement while ensuring the function of the entire vehicle.

[0029] (2) In the present invention, by integrating the vacuum pump controller into the vehicle controller, the vehicle controller has both the original functions and the function of controlling the vacuum pump. At the same time, by integrating the vacuum pump controller into the vehicle controller, cost reduction and efficiency improvement can be achieved.

[0030] (3) The vacuum pump control system and control method of the present invention can further determine whether the vacuum pressure sensor is faulty by judging the voltage of the vacuum pressure signal and combining a filtering method.

[0031] (4) When the vacuum pump control system and control method of the present invention determines that the vacuum pressure sensor is faulty, the driver can be alerted through the vehicle instrument module.

[0032] (5) The vacuum pump control system and control method of the present invention can determine whether the vacuum pump is in a constant rotation fault.

[0033] (6) After the vacuum pump control system and control method of the present invention determines that the vacuum pump is constantly running, the driver can be reminded through the vehicle instrument module.

[0034] (7) In the present invention, in terms of the control of the vacuum pump 2, the development method of building a MATLAB model can effectively shorten the development cycle and provide a convenient channel for product maintenance and upgrading. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] This specification includes the following drawings, which show the following contents:

[0036] Figure 1 It is a logic structure block diagram of a vacuum pump control system of the present invention;

[0037] Figure 2 It is a flow chart of a vacuum pump control method of the present invention.

[0038] Explanation of the accompanying drawings: 1. Vehicle controller; 2. Vacuum pump; 3. Vacuum pressure sensor; 4. Vehicle instrument module. DETAILED DESCRIPTION

[0039] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0040] Figure 1 It is a logical structure block diagram of a vacuum pump control system of the present invention, including a vehicle controller 1, a vacuum pump 2, a vacuum pressure sensor 3, and an automobile instrument module 4. The vehicle controller 1 is connected to the vacuum pump 2; the vehicle controller 1 is connected to the vacuum pressure sensor 3; the vehicle controller 1 is connected to the automobile instrument module 4. The system also includes a vacuum pump controller, which is integrated in the vehicle controller 1; and the vacuum pump controller is connected to the vacuum pump 2. That is, by integrating the vacuum pump controller in the vehicle controller 1, the vehicle controller 1 has both the original function and the function of controlling the vacuum pump 2. At the same time, by integrating the vacuum pump controller in the vehicle controller 1, cost reduction and efficiency improvement can be achieved.

[0041] Combine the following Figure 1 The working principle of the vacuum pump control system of the present invention is introduced as follows:

[0042] When the system of the present invention is working, the vacuum pressure sensor 3 collects the vacuum pressure signal inside the vacuum pump 2 and inputs it to the vehicle controller 1. The vacuum pressure signal received by the vehicle controller 1 is an analog quantity, and the vehicle controller 1 will filter the analog quantity using a rolling smoothing filter method. When the vehicle controller 1 determines that the voltage of the vacuum pressure signal is less than the first voltage threshold or greater than the second voltage threshold, the vehicle controller 1 sets a fault for the vacuum pressure sensor 3. When the vehicle controller 1 sets a fault for the vacuum pressure sensor 3, the fault count of the fault setting counter in the vehicle controller 1 is increased by 1 per cycle. When the fault count of the fault setting counter accumulates to the fault count threshold, the vehicle controller 1 determines that the vacuum pressure sensor 3 is faulty and inputs the information of the vacuum pressure sensor 3 fault to the vehicle instrument module 4; when the vehicle controller 1 does not set a fault for the vacuum pressure sensor 3, the fault count of the fault setting counter in the vehicle controller 1 is reduced by 5 per cycle until it is reduced to 0, and the fault is cleared and set to 0. That is, the vacuum pump control system and control method of the present invention can determine the voltage of the vacuum pressure signal and combine the filtering method to further determine whether the vacuum pressure sensor 3 is faulty; and when it is determined that the vacuum pressure sensor 3 is faulty, the vehicle instrument module 4 can be used to remind the driver.

[0043] After the vehicle controller 1 filters the vacuum pressure signal, when the vehicle controller 1 does not determine that the vacuum pressure sensor 3 is faulty, the vehicle controller 1 determines whether the absolute value of the internal pressure of the vacuum pump 2 is less than the first threshold value based on the vacuum pressure signal. If the vehicle controller 1 determines that the absolute value of the internal pressure of the vacuum pump 2 is less than the first threshold value, the vehicle controller 1 will determine whether the vacuum pump 2 is turned on. If the vehicle controller 1 determines that the vacuum pump 2 is not turned on, the vehicle controller 1 will control the vacuum pump 2 to turn on. If the vehicle controller 1 determines that the vacuum pump 2 is turned on, the vehicle controller 1 starts its internal timer to cumulatively record the working time of the vacuum pump 2. When the timer accumulates and records the first preset working time of the vacuum pump, the vehicle controller 1 will determine whether the absolute value of the internal pressure of the vacuum pump 2 is greater than the second threshold value. If the vehicle controller 1 determines that the absolute value of the internal pressure of the vacuum pump 2 is greater than the second threshold value, the vehicle controller 1 will control the timer to be reset and control the vacuum pump 2 to be turned off. If the vehicle controller 1 determines that the absolute value of the internal pressure of the vacuum pump 2 is not greater than the second threshold value, the vehicle controller 1 will determine whether the absolute value of the internal pressure of the vacuum pump 2 is not less than the first threshold value when the timer accumulates and records the second preset working time of the vacuum pump 2. If the vehicle controller 1 determines that the absolute value of the internal pressure of the vacuum pump 2 is not greater than the second threshold value when the timer accumulates and records the second preset working time of the vacuum pump 2, If the value is not less than the first threshold, the vehicle controller 1 will control the timer to clear and control the vacuum pump 2 to be turned off. If the vehicle controller 1 determines that the absolute value of the internal pressure of the vacuum pump 2 is less than the first threshold when the timer cumulatively records the second preset time of the vacuum pump 2 working, the vehicle controller 1 will determine whether the absolute value of the internal pressure of the vacuum pump 2 is less than the first threshold when the timer cumulatively records the third preset time of the vacuum pump 2 working; if the vehicle controller 1 determines that the absolute value of the internal pressure of the vacuum pump 2 is less than the first threshold when the timer cumulatively records the third preset time of the vacuum pump 2 working, the vehicle controller 1 will control the vacuum pump 2 to be turned off, and input the information of the vacuum pump 2 constant running fault to the vehicle instrument module 4. That is, it can be determined whether the vacuum pump 2 is a constant running fault; and after determining that the vacuum pump 2 is a constant running fault, the driver can be reminded through the vehicle instrument module 4.

[0044] Figure 2 1 is a flow chart of a vacuum pump control method of the present invention, the method comprising the following steps:

[0045] S1: The vehicle controller 1 determines whether the absolute value of the internal pressure of the vacuum pump 2 is less than the first threshold value. If so, it enters S2; if not, it enters S10; that is, corresponding Figure 2 Specifically, after the vehicle controller 1 filters the vacuum pressure signal, when the vehicle controller 1 does not determine that the vacuum pressure sensor 3 is faulty, the vehicle controller 1 determines whether the absolute value of the internal pressure of the vacuum pump 2 is less than the first threshold value based on the vacuum pressure signal, and if so, enters S2, and if not, enters S10.

[0046] S2: The vehicle controller 1 determines whether the vacuum pump 2 is turned on. If not, it enters S3. If so, it enters S4. Figure 2 Specifically, if the vehicle controller 1 determines that the absolute value of the internal pressure of the vacuum pump 2 is less than the first threshold, the vehicle controller 1 determines whether the vacuum pump 2 is turned on. If the vehicle controller 1 determines that the vacuum pump 2 is not turned on, it enters S3. If the vehicle controller 1 determines that the vacuum pump 2 is turned on, it enters S4.

[0047] S3: Vehicle controller 1 controls to start vacuum pump 2; Figure 2 Specifically, when the vehicle controller 1 determines that the vacuum pump 2 is not turned on, the vehicle controller 1 controls the vacuum pump 2 to be turned on.

[0048] S4: The vehicle controller 1 starts the timer to cumulatively record the working time of the vacuum pump 2; Figure 2 Specifically, the vehicle controller 1 starts its internal timer to cumulatively record the working time of the vacuum pump 2.

[0049] S5: When the timer accumulates and records the first preset working time of the vacuum pump, the vehicle controller 1 determines whether the absolute value of the internal pressure of the vacuum pump 2 is greater than the second threshold value. If not, it enters S6; if so, it enters S9; that is, corresponding to Figure 2 S5 in.

[0050] S6: When the timer cumulatively records the second preset working time of the vacuum pump 2, the vehicle controller 1 determines whether the absolute value of the internal pressure of the vacuum pump 2 is not less than the first threshold value. If not, it enters S7; if yes, it enters S9; that is, corresponding to Figure 2 S6 in.

[0051] S7: When the timer cumulatively records the third preset working time of the vacuum pump 2, the vehicle controller 1 determines whether the absolute value of the internal pressure of the vacuum pump 2 is less than the first threshold value. If so, it enters S8, if not, it enters S10; that is, corresponding to Figure 2 S7 in.

[0052] S8: The vehicle controller 1 controls to shut down the vacuum pump 2, and inputs the information of the vacuum pump 2 normal running fault to the vehicle instrument module 4; enters S10; that is, the corresponding Figure 2 Specifically, if the vehicle controller 1 determines that the absolute value of the internal pressure of the vacuum pump 2 is less than the first threshold value when the timer cumulatively records the third preset working time of the vacuum pump 2, the vehicle controller 1 will control the vacuum pump 2 to be turned off, and input the information of the vacuum pump 2 running normally to the vehicle instrument module 4.

[0053] S9: The vehicle controller 1 controls the reset timer and controls the shutdown of the vacuum pump 2; Figure 2 S9 in.

[0054] S10: End; corresponding Figure 2 The S10 in.

[0055] Among them, the calling cycle of the vacuum pump 2 control method is 10 milliseconds.

[0056] In addition, in the control of vacuum pump 2, the development method of building a MATLAB model is adopted, which can effectively shorten the development cycle and provide a convenient channel for product maintenance and upgrading.

[0057] In this specific embodiment, the fault count threshold is 50; the first voltage threshold is 1.2 volts; the second voltage threshold is 4.95 volts; the first preset time is 15 seconds; the second preset time is 30 seconds; the third preset time is 60 seconds; the first threshold is 50 kilopascals; and the second threshold is 70 kilopascals.

[0058] In addition, the present invention also provides a car, which is equipped with the above-mentioned vacuum pump control system and is controlled by the above-mentioned vacuum pump control method.

[0059] Functions and Effects of the Embodiments

[0060] The vacuum pump control system of the present invention includes a vehicle controller 1, a vacuum pump 2, a vacuum pressure sensor 3, and an automobile instrument module 4. The vehicle controller 1 is connected to the vacuum pump 2; the vehicle controller 1 is connected to the vacuum pressure sensor 3; and the vehicle controller 1 is connected to the automobile instrument module 4. The system also includes a vacuum pump controller, which is integrated in the vehicle controller 1; and the vacuum pump controller is connected to the vacuum pump 2. That is, by integrating the vacuum pump controller in the vehicle controller 1, the vehicle controller 1 has both the original functions and the function of controlling the vacuum pump 2. At the same time, by integrating the vacuum pump controller in the vehicle controller 1, cost reduction and efficiency improvement can be achieved. For example, the vehicle controller 1 has the original functions of power management, torque control, gear management, etc., and also has the function of controlling the vacuum pump 2.

[0061] When the vehicle controller 1 determines that the voltage of the vacuum pressure signal is less than the first voltage threshold or greater than the second voltage threshold, the vehicle controller 1 performs a fault setting for the vacuum pressure sensor 3. When the vehicle controller 1 performs a fault setting for the vacuum pressure sensor 3, the fault count of the fault setting counter in the vehicle controller 1 is increased by 1 every cycle. When the fault count of the fault setting counter accumulates to the fault count threshold, the vehicle controller 1 determines that the vacuum pressure sensor 3 is faulty and inputs the information of the vacuum pressure sensor 3 fault to the automobile instrument module 4; when the vehicle controller 1 does not perform a fault setting for the vacuum pressure sensor 3, the fault count of the fault setting counter in the vehicle controller 1 is reduced by 5 every cycle until it is reduced to 0, and the fault is cleared and set to 0. That is, the vacuum pump control system and control method of the present invention can determine the voltage of the vacuum pressure signal and further determine whether the vacuum pressure sensor 3 is faulty in combination with the filtering method; and when it is determined that the vacuum pressure sensor 3 is faulty, the driver can be reminded through the automobile instrument module 4.

[0062] After the vehicle controller 1 filters the vacuum pressure signal, when the vehicle controller 1 does not determine that the vacuum pressure sensor 3 is faulty, the vehicle controller 1 determines whether the absolute value of the internal pressure of the vacuum pump 2 is less than the first threshold value based on the vacuum pressure signal. If the vehicle controller 1 determines that the absolute value of the internal pressure of the vacuum pump 2 is less than the first threshold value, the vehicle controller 1 will determine whether the vacuum pump 2 is turned on. If the vehicle controller 1 determines that the vacuum pump 2 is not turned on, the vehicle controller 1 will control the vacuum pump 2 to turn on. If the vehicle controller 1 determines that the vacuum pump 2 is turned on, the vehicle controller 1 starts its internal timer to cumulatively record the working time of the vacuum pump 2. When the timer accumulates and records the first preset working time of the vacuum pump, the vehicle controller 1 will determine whether the absolute value of the internal pressure of the vacuum pump 2 is greater than the second threshold value. If the vehicle controller 1 determines that the absolute value of the internal pressure of the vacuum pump 2 is greater than the second threshold value, the vehicle controller 1 will control the timer to be reset and control the vacuum pump 2 to be turned off. If the vehicle controller 1 determines that the absolute value of the internal pressure of the vacuum pump 2 is not greater than the second threshold value, the vehicle controller 1 will determine whether the absolute value of the internal pressure of the vacuum pump 2 is not less than the first threshold value when the timer accumulates and records the second preset working time of the vacuum pump 2. If the vehicle controller 1 determines that the absolute value of the internal pressure of the vacuum pump 2 is not greater than the second threshold value when the timer accumulates and records the second preset working time of the vacuum pump 2, If the value is not less than the first threshold, the vehicle controller 1 will control the timer to clear and control the vacuum pump 2 to be turned off. If the vehicle controller 1 determines that the absolute value of the internal pressure of the vacuum pump 2 is less than the first threshold when the timer cumulatively records the second preset time of the vacuum pump 2 working, the vehicle controller 1 will determine whether the absolute value of the internal pressure of the vacuum pump 2 is less than the first threshold when the timer cumulatively records the third preset time of the vacuum pump 2 working; if the vehicle controller 1 determines that the absolute value of the internal pressure of the vacuum pump 2 is less than the first threshold when the timer cumulatively records the third preset time of the vacuum pump 2 working, the vehicle controller 1 will control the vacuum pump 2 to be turned off, and input the information of the vacuum pump 2 constant running fault to the vehicle instrument module 4. That is, it can be determined whether the vacuum pump 2 is a constant running fault; and after determining that the vacuum pump 2 is a constant running fault, the driver can be reminded through the vehicle instrument module 4.

[0063] In addition, in the control of vacuum pump 2, the development method of building a MATLAB model is adopted, which can effectively shorten the development cycle and provide a convenient channel for product maintenance and upgrading.

[0064] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A vacuum pump control system, characterized in that: It includes a vehicle controller, a vacuum pump, a vacuum pressure sensor, and an automobile instrument module. The vehicle controller is connected to the vacuum pump; the vehicle controller is connected to the vacuum pressure sensor; and the vehicle controller is connected to the automobile instrument module.

2. A vacuum pump control system according to claim 1, characterized in that: The system further comprises a vacuum pump controller, which is integrated in the vehicle controller; the vacuum pump controller is connected to the vacuum pump.

3. A vacuum pump control system according to claim 2, characterized in that: The vacuum pressure sensor collects the vacuum pressure signal inside the vacuum pump and inputs the vacuum pressure signal to the vehicle controller.

4. A vacuum pump control system as claimed in claim 3, characterized in that: When the vehicle controller determines that the voltage of the vacuum pressure signal is less than the first voltage threshold or greater than the second voltage threshold, the vehicle controller sets a fault position for the vacuum pressure sensor.

5. A vacuum pump control system according to claim 4, characterized in that: When the vehicle controller performs a fault setting for the vacuum pressure sensor, the fault count of the fault setting counter in the vehicle controller is increased by 1 every cycle. When the fault count of the fault setting counter accumulates to the fault count threshold, the vehicle controller determines that the vacuum pressure sensor is faulty and inputs the information of the vacuum pressure sensor fault to the vehicle instrument module.

6. A vacuum pump control system according to claim 5, characterized in that: The fault count threshold is 50.

7. A vacuum pump control system according to any one of claims 4 to 6, characterized in that: The first voltage threshold is 1.2 volts; the second voltage threshold is 4.95 volts.

8. A vacuum pump control method according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: S1: The vehicle controller determines whether the absolute value of the internal pressure of the vacuum pump is less than the first threshold value. If so, it enters S2; if not, it enters S10; S2: The vehicle controller determines whether the vacuum pump is turned on. If not, it goes to S3. If so, it goes to S4. S3: The vehicle controller controls to start the vacuum pump; S4: The vehicle controller starts the timer to cumulatively record the working time of the vacuum pump; S5: When the timer accumulates and records the first preset working time of the vacuum pump, the vehicle controller determines whether the absolute value of the internal pressure of the vacuum pump is greater than the second threshold value. If not, the process proceeds to S6; if yes, the process proceeds to S9; S6: When the timer cumulatively records the second preset working time of the vacuum pump, the vehicle controller determines whether the absolute value of the internal pressure of the vacuum pump is not less than the first threshold value. If not, the process proceeds to S7; if yes, the process proceeds to S9; S7: When the timer cumulatively records the third preset working time of the vacuum pump, the vehicle controller determines whether the absolute value of the internal pressure of the vacuum pump is less than the first threshold value. If so, the process proceeds to S8; if not, the process proceeds to S10; S8: The vehicle controller controls to shut down the vacuum pump and inputs the information of the vacuum pump's constant running fault to the vehicle instrument module; then enters S10; S9: The vehicle controller controls the timer to reset and turns off the vacuum pump; S10: End.

9. A vacuum pump control method according to claim 8, characterized in that: The first preset time is 15 seconds; the second preset time is 30 seconds; and the third preset time is 60 seconds.

10. An automobile, characterized in that: The automobile is equipped with a vacuum pump control system as described in any one of claims 1 to 7, and is controlled by a vacuum pump control method as described in any one of claims 8 to 9.

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