CN210599234U - Automobile low-pressure oil pump controller and automobile with same - Google Patents
Automobile low-pressure oil pump controller and automobile with same Download PDFInfo
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- CN210599234U CN210599234U CN201921337114.XU CN201921337114U CN210599234U CN 210599234 U CN210599234 U CN 210599234U CN 201921337114 U CN201921337114 U CN 201921337114U CN 210599234 U CN210599234 U CN 210599234U
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- pressure oil
- fuel tank
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Abstract
The utility model discloses a car low pressure oil pump controller and car that has it, car low pressure oil pump controller includes: a circuit board; the pump oil quantity control module is arranged on the circuit board and is configured to control the pump oil quantity according to an oil injection quantity demand signal; the fuel tank cap opening and closing circuit is arranged on the circuit board, and the fuel tank cap opening and closing circuit is configured to control the unlocking and locking of the fuel tank cap according to the refueling request signal and the pressure of the fuel tank. According to the utility model discloses car low pressure oil pump controller is integrated to have as required pump oil function and fuel tank cap opening and closing control function, has control integrated level height, advantage such as with low costs.
Description
Technical Field
The utility model belongs to the technical field of the car technique and specifically relates to a car low pressure oil pump controller and have car low pressure oil pump controller's car is related to.
Background
For an automobile, in order to control the oil pumping amount of a low-pressure oil pump motor each time according to the actual requirement of an engine, an oil pumping amount control function is required; in addition, in order to avoid the fuel tank cap from being unlocked under the condition of overlarge pressure of the fuel tank and cause fuel vapor leakage, the fuel tank cap opening and closing control function is required to be further provided. In the related art, the two functions are respectively realized by separate controllers, so that the control integration level is low and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a car low pressure oil pump controller, this car low pressure oil pump controller is integrated to have as required pump oil function and fuel tank cap start and stop control function, has control integrated level height, advantage such as with low costs.
The utility model discloses still provide a car with above-mentioned car low pressure oil pump controller.
According to the utility model discloses an embodiment of first aspect provides a car low pressure oil pump controller, car low pressure oil pump controller includes: a circuit board; the pump oil quantity control module is arranged on the circuit board and is configured to control the pump oil quantity according to an oil injection quantity demand signal; the fuel tank cap opening and closing circuit is arranged on the circuit board, and the fuel tank cap opening and closing circuit is configured to control the unlocking and locking of the fuel tank cap according to the refueling request signal and the pressure of the fuel tank.
According to the utility model discloses car low pressure oil pump controller is integrated to have as required pump oil function and fuel tank cap opening and closing control function, has control integrated level height, advantage such as with low costs.
According to the utility model discloses a some embodiments, car low pressure oil pump controller still includes: the connector is arranged on the circuit board and is provided with a power supply pin, a communication port, a signal acquisition port and a driving end; the processing circuit is arranged on the circuit board; the low-pressure oil pump driving circuit is arranged on the circuit board and is respectively connected with the processing circuit and the driving end; the acquisition circuit is arranged on the circuit board and is respectively connected with the signal acquisition end and the processing circuit; the oil pumping quantity control module comprises a communication circuit, and the communication circuit is respectively connected with the power supply pin, the communication port and the processing circuit; the fuel tank cap opening and closing circuit comprises a fuel tank cap driving circuit, and the fuel tank cap driving circuit is respectively connected with the driving end and the processing circuit.
Further, the fuel tank cap opening and closing circuit further comprises a fuel tank pressure relief driving circuit, and the fuel tank pressure relief driving circuit is connected with the driving end and the processing circuit respectively.
Further, the vehicle low pressure oil pump controller further comprises: and the power supply processing circuit is arranged on the circuit board and connected between the power supply pin and the communication circuit.
Further, the pump oil amount control module further includes: a converter connected between the power processing circuit and the communication circuit.
Further, the vehicle low pressure oil pump controller further comprises: a common mode filter disposed on the circuit board, the common mode filter being connected between the communication port and the communication circuit.
According to some specific examples of the utility model, the connector is 24PIN connector, the circuit board is the PCB circuit board, processing circuit is MCU processing circuit.
According to some specific examples of the present invention, the power processing circuit is an EMI power processing circuit, and the converter is a DC/DC converter.
According to some specific examples of the utility model, the communication port is CAN communication port, communication circuit is CAN, SPI communication circuit, common mode filter is CAN line common mode filter.
According to the utility model discloses an embodiment of second aspect provides an automobile, the automobile includes according to the utility model discloses an embodiment of first aspect automobile low pressure oil pump controller.
According to the utility model discloses car, through utilizing according to the utility model discloses an embodiment of first aspect car low pressure oil pump controller, have as required pump oil function and fuel tank cap start-stop control function, and control integrated level is high, with low costs.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a low-pressure oil pump controller of an automobile according to an embodiment of the present invention.
Reference numerals:
a low-pressure oil pump controller 1 of an automobile,
A circuit board 10,
A pump oil amount control module 20, a communication circuit 21, a converter 22,
An oil tank cap opening and closing circuit 30, an oil tank cap driving circuit 31, an oil tank pressure relief driving circuit 32,
A connector 40,
A processing circuit 50,
A low-pressure oil pump drive circuit 60,
An acquisition circuit 70,
A power supply processing circuit 80,
A common mode filter 90.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
The following describes an automotive low-pressure oil pump controller 1 according to an embodiment of the present invention with reference to the drawings.
As shown in fig. 1, the low pressure oil pump controller 1 of the present invention includes a circuit board 10, an oil pumping amount control module 20, and an oil tank cap opening/closing circuit 30.
The pump oil amount control module 20 is disposed on the circuit board 10, and the pump oil amount control module 20 is configured to control the pump oil amount according to the oil injection amount demand signal. The tank cap opening and closing circuit 30 is provided on the circuit board 10, and the tank cap opening and closing circuit 30 is configured to control the unlocking and locking of the tank cap according to the refueling request signal and the tank pressure.
Specifically, the pump oil amount control module 20 and the tank cap opening and closing circuit 30 are both disposed on the circuit board 10. The pump oil amount control module 20 can control the amount of oil pumped to the engine according to different actual required oil injection amounts of the engine. The tank cap opening and closing circuit 30 can control the unlocking and locking of the tank cap according to the refueling request signal and the tank pressure, for example, when the refueling request signal is received and the tank pressure is too high (reaches a preset threshold), the tank cap opening and closing circuit 30 controls the locking of the tank cap, so that the tank cap is prevented from being opened to cause the oil vapor to leak to the outside; when a refueling request signal is received and the pressure of the fuel tank is low (lower than a preset threshold), the fuel tank cap opening and closing circuit 30 controls the fuel tank cap to be unlocked and allows the fuel tank cap to be opened; when the fuel filling request signal is not received, the fuel tank cap opening and closing circuit 30 controls the fuel tank cap to be locked.
According to the utility model discloses car low pressure oil pump controller 1 opens and close circuit 30 through set up pump oil volume control module 20 and fuel tank cap on circuit board 10, can realize fuel feeding and oil tank start-stop control function as required simultaneously, and these two kinds of function integration are on a circuit board 10, need not to set up the controller respectively alone, have improved the control integration degree by a wide margin, effectively the cost is reduced.
Therefore, according to the utility model discloses car low pressure oil pump controller 1 is integrated to have as required pump oil function and fuel tank cap opening and closing control function, has advantages such as control integrated level height, with low costs.
In some embodiments of the present invention, as shown in fig. 1, the vehicle low-pressure oil pump controller 1 further includes a connector 40, a processing circuit 50, a low-pressure oil pump driving circuit 60, and an acquisition circuit 70.
The connector 40 is disposed on the circuit board 10, and the connector 40 has a power pin, a communication port, a signal acquisition port, and a driving end. The processing circuit 50 is provided on the circuit board 10. The low-pressure oil pump drive circuit 60 is provided on the circuit board 10, and the low-pressure oil pump drive circuit 60 is connected to the processing circuit 50 and the drive end of the connector 40, respectively. The acquisition circuit 70 is disposed on the circuit board 10, and the acquisition circuit 70 is connected to the signal acquisition terminal of the connector 40 and the processing circuit 50, respectively.
The pump oil amount control module 20 includes a communication circuit 21, and the communication circuit 21 is connected to a power supply pin of the connector 40, a communication port of the connector 40, and the processing circuit 50, respectively. The tank cap opening and closing circuit 30 includes a tank cap driving circuit 31, and the tank cap driving circuit 31 is connected to the driving end of the connector 40 and the processing circuit 50, respectively. Therefore, the components share one connector 40, and the oil pumping amount control module 20 and the oil tank cap opening and closing circuit 30 are connected to the driving end of the connector 40 and respectively drive external loads to work.
The connector 40 may be a 24pin (pin connector), the circuit board 10 may be a pcb (printed circuit board), and the processing circuit 50 may be an mcu (microcontroller unit) processing circuit.
Further, as shown in fig. 1, the tank cap opening and closing circuit 30 further includes a tank pressure relief driving circuit 32.
The oil tank pressure relief driving circuit 32 is respectively connected with the driving end of the connector 40 and the processing circuit 50, and is used for controlling whether the oil tank is depressurized, for example, when the oil tank pressure is too high (reaches a preset threshold), the oil tank cap opening and closing circuit 30 controls the oil tank cap to be locked, the oil tank pressure relief driving circuit 32 controls the oil tank to be depressurized, if the oil tank isolation valve is driven to be depressurized, when the oil tank pressure is reduced to be below the preset threshold, the oil tank cap opening and closing circuit 30 controls the oil tank cap to be unlocked, and the oil tank cap is allowed to be opened.
Therefore, the automobile low-pressure oil pump controller 1 integrates three functions of oil supply according to requirements, oil tank pressure relief control and oil tank cover opening and closing control, and the oil tank pressure relief control and the oil tank cover opening and closing control share one circuit for driving.
In some specific examples of the present invention, as shown in fig. 1, the vehicle low-pressure oil pump controller 1 further includes a power supply processing circuit 80.
The power supply processing circuit 80 is provided on the circuit board 10, and the power supply processing circuit 80 is connected between the power supply pin of the connector 40 and the communication circuit 21 of the oil pumping amount control module 20.
Further, the pump oil amount control module 20 further includes a converter 22, i.e. the converter 22 and the communication circuit 21 are integrated into the pump oil amount control module 20.
The converter 22 is connected between the power supply processing circuit 80 and the communication circuit 21.
The power processing circuit 80 may be an emi (electromagnetic interference) power processing circuit, and the converter 22 may be a DC/DC (Direct current-Direct current converter).
Since the power supply of the external whole vehicle is complex, the safe and stable operation of the oil pumping amount control module 20 can be ensured by arranging the power supply processing circuit 80 and the converter 22.
In some embodiments of the present invention, as shown in fig. 1, the vehicle low pressure oil pump controller 1 further includes a common mode filter 90.
The common mode filter 90 is provided on the circuit board 10, and the common mode filter 90 is connected between the communication port of the connector 40 and the communication circuit 21 of the oil pumping amount control module 20.
The communication port of the connector 40 may be a CAN (controller Area network) communication port, the communication circuit 21 is a CAN or SPI (Serial Peripheral Interface) communication circuit, and the common mode filter 90 is a CAN line common mode filter.
Because the interference of the CAN of the external whole vehicle is large, the signals are filtered by the common mode filter 90 after entering, and safe and accurate data exchange CAN be ensured.
The operation of the low pressure oil pump controller 1 for an automobile according to an embodiment of the present invention will be described below by way of example with reference to the accompanying drawings.
After the vehicle is started, a power supply pin of the connector 40 inputs a 9-16V power supply, a relatively stable power supply is obtained through the power supply processing circuit 80, then the relatively stable power supply enters the oil pumping amount control module 20, the converter 22 converts the input 9-16V power supply into 3 paths of 5V voltage, one path supplies power to the processing circuit 50, the other path supplies power to the external sensor, and the other path supplies power to the CAN communication.
Control of the amount of oil pumped: after the vehicle is started, the communication port of the connector 40 receives a demand signal of fuel injection quantity from the electronic fuel injection of the whole vehicle, the demand signal enters the common mode filter 90 for filtering, and then is transmitted to the communication circuit 21 of the fuel pumping quantity control module 20, and the signal processed by the communication circuit 21 is subjected to data exchange with the processing circuit 50 through a CAN.SPI communication protocol. The signal processed by the processing circuit 50 is transmitted to the low-pressure oil pump driving circuit 60, and the low-pressure oil pump driving circuit 60 amplifies the signal input by the processing circuit 50 and transmits the amplified signal to the driving end of the connector 40 to drive the external low-pressure oil pump motor to work and pump oil to the engine, so that the requirement of supplying the electronic fuel injection according to the requirement is met.
Control of tank cap pressure relief: when the vehicle sends a refueling request, the communication port of the connector 40 receives a refueling request signal from the whole vehicle, the refueling request signal enters the common mode filter 90 for filtering, and then is transmitted to the communication circuit 21 of the fuel pumping amount control module 20, and the signal processed by the communication circuit 21 performs data exchange with the processing circuit 50 through a CAN.SPI communication protocol.
At this time, the processing circuit 50 requests the acquisition circuit 70 to acquire the external tank pressure (oil pressure sensor, analog quantity). When the pressure of the oil tank is too high (the current pressure value of the oil tank exceeds a preset threshold), the processing circuit 50 sends information to the oil tank pressure relief driving circuit 32 of the oil tank cover opening and closing circuit 30, and after the signal is amplified by the oil tank pressure relief driving circuit 32, the signal is transmitted to the driving end of the connector 40 to drive the oil tank isolation valve to relieve the pressure of the oil tank.
The acquisition circuit 70 may be an analog or digital acquisition circuit.
Controlling the opening and closing of the oil tank cover; when the vehicle sends a refueling request, when the fuel tank pressure is low (the current fuel tank pressure is lower than the preset threshold), the processing circuit 50 sends information to the fuel tank cap driving circuit 31 of the fuel tank cap opening and closing circuit 30, and after the signal is amplified by the fuel tank cap driving circuit 31, the signal is transmitted to the driving end of the connector 40 to unlock the fuel tank cap, so that the refueling purpose is achieved.
When the refueling request is closed, the processing circuit 50 requests the acquisition circuit 70 to acquire the external tank cap position, and when the tank cap is detected to be closed, the processing circuit 50 sends information to the tank cap driving circuit 31 to control the tank cap to be locked.
An automobile according to an embodiment of the present invention is described below.
According to the utility model discloses car includes according to the utility model discloses car low pressure oil pump controller 1 of above-mentioned embodiment.
According to the utility model discloses car, through utilizing according to the utility model discloses car low pressure oil pump controller 1 of above-mentioned embodiment has pump oil function and fuel tank cap on-off control function as required, and control integrated level height, with low costs.
Along with six emission standard in state and hybrid vehicle require the implementation, according to the utility model discloses car low pressure oil pump controller 1 can receive the message that comes from engine control module in real time, converts the oil pump drive signal into again, according to target control low pressure oil pump module, if the target value is 4bar, control accuracy reaches 0.2bar, satisfies the on-demand supply of engine fuel injection quantity. Moreover, the oil vapor leakage can be controlled, the pressure in the oil tank is ensured to be in a normal range, and the influence of the oil vapor leakage on the external environment is avoided or reduced.
Other configurations and operations of vehicles according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the terms "particular embodiment," "particular example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An automotive low pressure oil pump controller, comprising:
a circuit board;
the pump oil quantity control module is arranged on the circuit board and is configured to control the pump oil quantity according to an oil injection quantity demand signal;
the fuel tank cap opening and closing circuit is arranged on the circuit board, and the fuel tank cap opening and closing circuit is configured to control the unlocking and locking of the fuel tank cap according to the refueling request signal and the pressure of the fuel tank.
2. The automotive low pressure oil pump controller as set forth in claim 1, further comprising:
the connector is arranged on the circuit board and is provided with a power supply pin, a communication port, a signal acquisition port and a driving end;
the processing circuit is arranged on the circuit board;
the low-pressure oil pump driving circuit is arranged on the circuit board and is respectively connected with the processing circuit and the driving end;
the acquisition circuit is arranged on the circuit board and is respectively connected with the signal acquisition end and the processing circuit;
the oil pumping quantity control module comprises a communication circuit, and the communication circuit is respectively connected with the power supply pin, the communication port and the processing circuit;
the fuel tank cap opening and closing circuit comprises a fuel tank cap driving circuit, and the fuel tank cap driving circuit is respectively connected with the driving end and the processing circuit.
3. The controller for the low-pressure oil pump of the automobile as claimed in claim 2, wherein the tank cap opening and closing circuit further comprises a tank pressure relief driving circuit, and the tank pressure relief driving circuit is connected to the driving end and the processing circuit respectively.
4. The automotive low pressure oil pump controller as set forth in claim 2, further comprising:
and the power supply processing circuit is arranged on the circuit board and connected between the power supply pin and the communication circuit.
5. The automotive low pressure oil pump controller of claim 4, wherein the pump oil amount control module further comprises:
a converter connected between the power processing circuit and the communication circuit.
6. The automotive low pressure oil pump controller as set forth in claim 2, further comprising:
a common mode filter disposed on the circuit board, the common mode filter being connected between the communication port and the communication circuit.
7. The automotive low pressure oil pump controller of claim 2, wherein the connector is a 24PIN connector, the circuit board is a PCB circuit board, and the processing circuit is an MCU processing circuit.
8. The automotive low pressure oil pump controller of claim 5, wherein the power processing circuit is an EMI power processing circuit and the converter is a DC/DC converter.
9. The controller for low pressure oil pump of automobile as claimed in claim 6, wherein the communication port is a CAN communication port, the communication circuit is a CAN, SPI communication circuit, and the common mode filter is a CAN line common mode filter.
10. An automobile characterized by comprising the automobile low pressure oil pump controller according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921337114.XU CN210599234U (en) | 2019-08-15 | 2019-08-15 | Automobile low-pressure oil pump controller and automobile with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921337114.XU CN210599234U (en) | 2019-08-15 | 2019-08-15 | Automobile low-pressure oil pump controller and automobile with same |
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| Publication Number | Publication Date |
|---|---|
| CN210599234U true CN210599234U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921337114.XU Active CN210599234U (en) | 2019-08-15 | 2019-08-15 | Automobile low-pressure oil pump controller and automobile with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323855A (en) * | 2021-06-10 | 2021-08-31 | 珠海格力电器股份有限公司 | Position detection system and method for automobile power-assisted oil pump and automobile |
-
2019
- 2019-08-15 CN CN201921337114.XU patent/CN210599234U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323855A (en) * | 2021-06-10 | 2021-08-31 | 珠海格力电器股份有限公司 | Position detection system and method for automobile power-assisted oil pump and automobile |
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