Oil cooling electric drive control system and automobile

Abstract

The utility model discloses an oil cooling electric drive control system and an automobile, and relates to the technical field of oil cooling electric drive control, the oil cooling electric drive control system is provided with a parking mechanism, the system comprises a pump body, the pump body is electrically connected with a motor, and the pump body is connected with the parking mechanism through a pipeline; the motor is in driving connection with the pump body, and the electromagnetic valve can form a locking channel and a loosening channel; the main control circuit controls the motor to work so as to drive the pump body to operate; the main control circuit is further electrically connected with the controlled end of the electromagnetic valve, and the main control circuit is further used for controlling the electromagnetic valve to communicate with the locking channel and then conveying pressure oil to the parking mechanism for locking. Or after the electromagnetic valve is controlled to be communicated with the loosening channel, the pressure oil is output to the parking mechanism for loosening; in this way, the main control circuit controls the electromagnetic valve to change the channel through which the pressure oil flows to the parking mechanism, the locking or loosening function of the parking mechanism is achieved, and therefore the cost of a motor can be effectively reduced, and the complexity of the system is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil cooling electric drive control technical field, especially relates to a kind of oil cooling electric drive control system and car. BACKGROUND

[0002] At present, the driving force of oil cooling electric drive parking mechanism is derived from motor, but in oil cooling electric drive control system, not only electronic oil pump also has another motor. So there are often two motors on the same electric drive to provide driving force for parking system and electronic oil pump, which undoubtedly greatly increases the cost of control system, and makes the system more complex. SUMMARY

[0003] The utility model discloses a kind of oil cooling electric drive control system and car, to solve the problem of higher cost and more complex system in oil cooling electric drive control system.

[0004] To achieve the above object, the oil cooling electric drive control system provided by the utility model, the control system is provided with parking mechanism, and the control system includes:

[0005] Pump body, the pump body is electrically connected with the motor, and the pump body is connected with the parking mechanism by pipeline;

[0006] Motor, drivingly connected with the pump body, the motor is used to drive the pump body to run to deliver pressure oil to the parking mechanism;

[0007] Solenoid valve, the oil inlet hole of the solenoid valve is communicated with the pump body, and the two oil outlet holes of the solenoid valve are communicated with the parking mechanism respectively to form locking channel and loosening channel respectively;

[0008] Main control circuit, the main control circuit is electrically connected with the motor, and the main control circuit controls the motor to work to drive the pump body to run;

[0009] The controlled end of the solenoid valve is also electrically connected with the main control circuit, and the main control circuit is also used to send locking control signal to the solenoid valve to control the solenoid valve to communicate the locking channel, and then deliver the pressure oil to the parking mechanism to lock;Or send loosening control signal to the solenoid valve to control the solenoid valve to communicate the loosening channel, and then output the pressure oil to the parking mechanism to loosen.

[0010] In an embodiment, the main control circuit includes:

[0011] Motor controller, the motor controller is electrically connected with the motor, and is used to send driving signal to the motor to drive the motor to provide power;

[0012] A master control chip is electrically connected with the control end of the electromagnetic valve, and is electrically connected with the motor controller, for sending a starting signal to the motor controller to control the motor controller to send a driving signal, and is further used for sending a release control signal to control the electromagnetic valve to communicate with the release channel, or a locking control signal to the electromagnetic valve to control the electromagnetic valve to communicate with the locking channel.

[0013] In an embodiment, the control system further comprises:

[0014] A flow sensor is arranged in a pipeline between the pump body and the electromagnetic valve, and is electrically connected with the master control chip for sending a flow detection signal to the master control chip.

[0015] The master control chip is further used for adjusting the rotating speed of the motor according to the flow detection signal.

[0016] In an embodiment, the flow sensor is arranged as a flow meter.

[0017] In an embodiment, the control system further comprises:

[0018] A position sensor is arranged in the parking mechanism, and is electrically connected with the master control chip for sending a release state signal or a locking state signal to the master control chip to identify the working state of the parking mechanism.

[0019] In an embodiment, the position sensor is arranged as a Hall sensor.

[0020] The utility model further provides a kind of automobile, and the automobile includes parking mechanism and the oil cooling electric drive control system described above.

[0021] The utility model discloses a technical scheme through adopting an oil cooling electric drive control system, the control system is provided with parking mechanism, the control system includes: pump body, pump body with motor electricity is connected, and the pump body with parking mechanism is connected through the pipeline between, motor, with pump body drive connection, the motor is used for driving the pump body operation, to deliver pressure oil to the parking mechanism, solenoid valve, solenoid valve's oil inlet hole is linked with pump body, and the two oil outlets of solenoid valve are linked with parking mechanism respectively, to form locking channel and loosening channel respectively, main control circuit, main control circuit with motor electricity is connected, and main control circuit controls the motor work, to drive the pump body operation, main control circuit still with solenoid valve's controlled end electricity is connected, and main control circuit still is used to send locking control signal to solenoid valve, to control solenoid valve links up locking channel after, and delivers pressure oil to the parking mechanism and locks, or sends loosening control signal to solenoid valve, to control solenoid valve links up loosening channel after, and exports pressure oil to the parking mechanism and loosens, so setting, main control circuit sends control the motor work after, drives pump body operation and delivers pressure oil to solenoid valve, and main control circuit can send locking control signal or loosening control signal to solenoid valve simultaneously, and the different channel flow direction parking mechanism is switched, to realize the function of parking mechanism locking or loosening, to make the system can effectively reduce the cost of motor, and the complexity of system is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained from the structures shown in the drawings without creative labor for those skilled in the art.

[0023] Figure 1 The system schematic diagram of the oil cooling electric drive control system embodiment provided by the present application is shown in the figure.

[0024] Explanation of reference numerals:

[0025] 1 - main control circuit, 11 - main control chip, 12 - motor controller, 2 - motor, 3 - pump body, 4 - solenoid valve, 5 - parking mechanism, 6 - flow sensor, 7 - position sensor.

[0026] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0028] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0029] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel solutions are included, for example, "A and / or B" includes A solution or B solution or A and B simultaneously satisfied solution. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0030] The utility model provides a kind of oil cooling electric drive control system, the control system is provided with parking mechanism 5, the control system includes:

[0031] Pump body 3, the pump body 3 is electrically connected with the motor 2, the pump body 3 is connected by pipeline between the parking mechanism 5;

[0032] Motor 2, with the pump body 3 driving connection, the motor 2 is used to drive the pump body 3 operation, to deliver pressure oil to the parking mechanism 5;

[0033] Solenoid valve 4, the oil inlet hole of the solenoid valve 4 is communicated with the pump body 3, two oil outlet holes of the solenoid valve 4 are communicated with the parking mechanism 5 respectively, to form locking passage and loosening passage respectively;

[0034] Main control circuit 1, the main control circuit 1 is electrically connected with the motor 2, and the main control circuit 1 controls the motor 2 to work to drive the pump body 3 to operate;

[0035] The main control circuit 1 is also connected with the controlled end of the electromagnetic valve 4, and the main control circuit 1 is also used to send a locking control signal to the electromagnetic valve 4, so that the electromagnetic valve 4 is communicated with the locking channel, and the pressure oil is transported to the parking mechanism 5 for locking; or send a loosening control signal to the electromagnetic valve 4, so that the electromagnetic valve 4 is communicated with the loosening channel, and the pressure oil is output to the parking mechanism 5 for loosening.

[0036] In the embodiment, the pump body 3 can be implemented by a centrifugal water pump, a gear water pump or a screw water pump, the motor 2 can be implemented by a direct current motor 2 such as a brush motor 2, a brushless motor 2 or a stepping motor 2, or can be implemented by an alternating current motor 2 such as a permanent magnet synchronous motor 2 or an alternating current asynchronous motor 2, the electromagnetic valve 4 can be implemented by a two-way electromagnetic valve 4, and the main control circuit 1 can be implemented by a plurality of control chips or a control chip and a motor controller 12.

[0037] Specifically, when the motor 2 receives the driving signal of the main control circuit 1, the motor 2 can drive the pump body 3 through the shaft coupling or the gear connection, the rotor of the motor 2 drives the shaft coupling or the gear to rotate, so that the pump body 3 also rotates to work, so that the pressure oil is output to the parking mechanism 5 through the connected pipeline, the oil inlet hole of the electromagnetic valve 4 is communicated with the pump body 3, and the two oil outlet holes of the electromagnetic valve 4 are respectively communicated with the parking mechanism 5, so as to form the locking channel and the loosening channel, respectively, the main control circuit 1 can send a locking control signal to the electromagnetic valve 4 to control the electromagnetic valve 4 to communicate with the locking channel, and transport the pressure oil to the parking mechanism 5 for locking, or the main control circuit 1 can send a loosening control signal to the electromagnetic valve 4 to control the electromagnetic valve 4 to communicate with the loosening channel, and output the pressure oil to the parking mechanism 5 for loosening, wherein during the operation of the oil-cooled electric drive control system, and if there is no user instruction to operate the parking mechanism 5, the pump body 3 can also suck lubricating oil or cooling oil from the pipeline of another oil tank and transport it to the designated position through the pipeline, so as to lubricate or cool the automobile, so as to realize the use of one motor 2 driving the pump body 3 to complete multiple functions in the oil-cooled electric drive control system, and reduce the complexity of the system.

[0038] Further, the main control circuit 1 comprises:

[0039] The motor controller 12 is connected with the motor 2, and is used to send a driving signal to the motor 2 to drive the motor 2 to provide power;

[0040] A master control chip 11, which is electrically connected with the control end of the electromagnetic valve 4, is electrically connected with the motor controller 12, and is used to send a starting signal to the motor controller 12 to control the motor controller 12 to send a driving signal. The master control chip 11 is also used to send a loosening control signal to control the electromagnetic valve 4 to communicate with the loosening passage, or a locking control signal to the electromagnetic valve 4 to control the electromagnetic valve 4 to communicate with the locking passage.

[0041] In the embodiment, the motor controller 12 can be realized by a speed-regulating motor controller 12 such as a direct-current motor controller 12, an alternating-current induction motor controller 12, or a permanent magnet synchronous motor controller 12. The master control chip 11 can be realized by, for example, an MCU (Microcontroller Unit), a DSP (Digital Signal Process), an FPGA (Field Programmable Gate Array), or an SOC (System On Chip).

[0042] Specifically, the master control chip 11 can calculate the working state of the parking mechanism 5 by an algorithm, and notify the user of the working state of the parking mechanism 5 through a prompt component such as a display. When the user needs to operate the parking mechanism 5, the master control chip 11 sends a starting signal to the motor controller 12. The direct-current motor controller 12 can adjust the speed of the motor 2 by a pulse width modulation speed regulation method or an armature voltage speed regulation method. The alternating-current induction motor controller 12 can adjust the speed of the motor 2 by a frequency conversion speed regulation method. The permanent magnet synchronous motor controller 12 can adjust the speed of the motor 2 by a field weakening speed regulation method. Thus, the motor controller 12 drives the motor 2 at a first rotating speed. The motor 2 provides power to drive the pump body 3 to operate and deliver pressure oil. The master control chip 11 sends a loosening control signal to the controlled end of the electromagnetic valve 4 to control the electromagnetic valve 4 to communicate with the loosening passage. The pressure oil flows through the loosening passage of the electromagnetic valve 4 and is output to the parking mechanism 5 through a first oil outlet hole, thereby completing the loosening function of the parking mechanism 5. Or the master control chip 11 sends a locking control signal to the electromagnetic valve 4 to control the electromagnetic valve 4 to communicate with the locking passage. The pressure oil flows through the locking passage of the electromagnetic valve 4 and is output to the parking mechanism 5 through a second oil outlet hole, thereby completing the locking function of the parking mechanism 5. Thus, the oil-cooled electric drive control system completes the function control of the parking mechanism 5. The first rotating speed can be set to a specific value according to actual needs by a developer.

[0043] In an embodiment, the control system further comprises:

[0044] A flow sensor 6 is arranged in the pipeline between the pump body 3 and the electromagnetic valve 4, and is electrically connected to the main control chip 11, for sending a flow detection signal to the main control chip 11.

[0045] The main control chip 11 is further configured to adjust the rotating speed of the motor 2 according to the flow detection signal.

[0046] In this embodiment, the flow sensor 6 is arranged in the pipeline between the pump body 3 and the electromagnetic valve 4, and sends the detected flow detection signal to the main control chip 11. The main control chip 11 is provided with a fixed flow threshold value. When the flow detection signal is lower than the fixed flow threshold value, the main control chip 11 sends a second driving signal to control the motor 2 to provide power at a second rotating speed, so as to increase the flow rate of the pressure oil in the pipeline, and ensure that the pressure oil can be stably supplied to the parking mechanism 5, so as to avoid that the flow is too small due to the high viscosity of the pressure oil in the pipeline or the existence of impurities in the pipeline, and thus the parking mechanism 5 is not sensitive or fails to operate. When the flow detection signal is higher than the fixed flow threshold value, the main control chip 11 maintains the motor 2 to operate at a first rotating speed, so as to ensure that the parking mechanism 5 can normally and quickly complete the locking or unlocking action. This design not only improves the intelligent degree of the oil-cooled electric drive control system, but also enhances the stability and reliability of the parking mechanism 5, and brings a smoother and safer driving experience to the user. The first rotating speed is lower than the second rotating speed, and the second rotating speed can be set according to the actual demand of the R&D personnel.

[0047] Further, the flow sensor 6 is arranged as a flow meter.

[0048] Specifically, the flow meter can be selected from a turbine flow meter, an electromagnetic flow meter or an ultrasonic flow meter. The turbine flow meter is suitable for measuring the flow of high-viscosity medium, has high measurement accuracy and good repeatability; the electromagnetic flow meter is suitable for measuring the flow of conductive liquid, has a large measurement range and a fast response speed; and the ultrasonic flow meter is suitable for measuring the flow of non-conductive medium, does not need to contact the fluid, and is easy to install. According to different use environments and medium characteristics, the appropriate type of flow meter is selected, so as to ensure the accuracy and reliability of the flow detection, and thus improve the overall performance of the oil-cooled electric drive control system.

[0049] In another embodiment, the control system further comprises:

[0050] A position sensor 7 is arranged in the parking mechanism 5, and is electrically connected to the main control chip 11, for sending an unlocking state signal or a locking state signal to the main control chip 11, so that the main control chip 11 identifies the working state of the parking mechanism 5.

[0051] In the embodiment, the position sensor 7 can detect the current position of the parking mechanism 5 through the inductive element arranged in the parking mechanism 5, and the position sensor 7 can also be provided with a Hall sensor, so that the inductive element sends a release state signal to the master control chip 11 when the parking mechanism 5 is in the release state, and the inductive element sends a locking state signal to the master control chip 11 when the parking mechanism 5 is in the locking state. The master control chip 11 can judge the working state of the parking mechanism 5 in real time according to the received signal, and accurately control the motor 2 according to the working state, so as to avoid the safety hazard caused by the user not actually performing the parking operation when the system loses the algorithm detection of the working state data of the parking mechanism 5, or the vehicle driving in the locking state of the parking mechanism 5. The design not only improves the working efficiency and accuracy of the parking mechanism 5, but also further enhances the intelligent degree of the oil-cooled electric drive control system, and brings more convenient and reliable driving experience to the user.

[0052] Further, the position sensor 7 is a Hall sensor.

[0053] Specifically, the Hall sensor can be arranged near the locking position of the parking mechanism 5 to accurately detect the locking and releasing states of the parking mechanism 5. The Hall sensor has the characteristics of high sensitivity and fast response speed, can capture the change of the magnetic field strength when the parking mechanism 5 is released or locked in real time, and convert the change into an electric signal to transmit to the master control chip 11. The master control chip 11 can quickly and accurately judge the working state of the parking mechanism 5 according to the electric signal, so as to realize the accurate control of the motor 2. The design not only improves the working stability and reliability of the parking mechanism 5, but also effectively avoids the safety hazard caused by the system algorithm failure, and provides a safer and more convenient driving environment for the user.

[0054] The utility model also proposes a kind of automobile, and the automobile includes parking mechanism 5 and oil-cooled electric drive control system, and the specific structure of the oil-cooled electric drive control system refers to above-mentioned embodiment, since the automobile of the present application adopts all technical solutions of above-mentioned all embodiments, at least has all beneficial effects brought by the technical scheme of above-mentioned embodiment, here is not repeated.

[0055] The above is only the exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and drawing contents, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. An oil-cooled electric drive control system, characterized by, The control system is provided with a parking mechanism, and the control system comprises: a pump body electrically connected with the motor, the pump body being connected with the parking mechanism through a pipeline; a motor drivingly connected with the pump body, the motor being used to drive the pump body to operate to deliver pressure oil to the parking mechanism; a solenoid valve, an oil inlet hole of the solenoid valve being communicated with the pump body, and two oil outlet holes of the solenoid valve being respectively communicated with the parking mechanism to form a locking channel and a release channel; a main control circuit electrically connected with the motor, the main control circuit being used to control the motor to work to drive the pump body to operate; the main control circuit is also electrically connected with a controlled end of the solenoid valve, and the main control circuit is also used to send a locking control signal to the solenoid valve to control the solenoid valve to be communicated with the locking channel and deliver the pressure oil to the parking mechanism for locking, or send a release control signal to the solenoid valve to control the solenoid valve to be communicated with the release channel and output the pressure oil to the parking mechanism for release.

2. The oil-cooled electric drive control system of claim 1, wherein, The main control circuit comprises: a motor controller electrically connected with the motor, the motor controller being used to send a driving signal to the motor to drive the motor to provide power; a main control chip electrically connected with a control end of the solenoid valve, the main control chip being electrically connected with the motor controller, the main control chip being used to send a starting signal to the motor controller to control the motor controller to send the driving signal, and the main control chip being also used to send the release control signal to control the solenoid valve to be communicated with the release channel, or send the locking control signal to the solenoid valve to control the solenoid valve to be communicated with the locking channel.

3. The oil-cooled electric drive control system of claim 2, wherein, The control system further comprises: a flow sensor arranged in the pipeline between the pump body and the solenoid valve, the flow sensor being electrically connected with the main control chip to send a flow detection signal to the main control chip; the main control chip is also used to adjust the rotating speed of the motor according to the flow detection signal.

4. The oil-cooled electric drive control system of claim 3, wherein, The flow sensor is arranged as a flow meter.

5. The oil-cooled electric drive control system of claim 2, wherein, The control system further comprises: a position sensor arranged in the parking mechanism, the position sensor being electrically connected with the main control chip to send a release state signal or a locking state signal to the main control chip to identify the working state of the parking mechanism by the main control chip.

6. The oil-cooled electric drive control system of claim 5, wherein, The position sensor is arranged as a Hall sensor.

7. An automobile characterized by comprising: The automobile comprises a parking mechanism and an oil-cooled electric drive control system according to any one of claims 1 to 6.

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