CN203309086U - Hydraulic supply unit - Google Patents
Hydraulic supply unit Download PDFInfo
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- CN203309086U CN203309086U CN201320344627XU CN201320344627U CN203309086U CN 203309086 U CN203309086 U CN 203309086U CN 201320344627X U CN201320344627X U CN 201320344627XU CN 201320344627 U CN201320344627 U CN 201320344627U CN 203309086 U CN203309086 U CN 203309086U
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- oil pump
- oil
- type oil
- electrodynamic type
- pump
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Abstract
The utility model provides a hydraulic supply unit (30). In the hydraulic supply unit (30), a fourth oil passage of an electric oil pump (21) is connected with a second oil passage (34) of a mechanical oil pump (20) through a one-way valve (39), and a sixth oil passage (38) which is branched out of the fourth oil passage (36) of the electric oil pump (21) is arranged at a position which is closer to the upstream side of flowing engine oil than the one-way valve (39); a pressure release valve (40) is arranged in the sixth oil passage (38). By adopting the structure of the hydraulic supply unit, the problem that air is accumulated in a third oil passage (oil inlet passage) (35) and the fourth oil passage (oil discharge passage) (36) of the electric oil pump (21) can be solved, and then the oil pressure response of the electric oil pump (21) during starting is ensured.
Description
Technical field
The utility model relates to a kind of hydraulic supply unit, and particularly a kind of possess to the mechanical type oil pump of oil hydraulic circuit fuel feeding and the hydraulic supply unit of electrodynamic type oil pump.
Background technique
In prior art, known have possess to the mechanical type oil pump of the oil hydraulic circuit fuel feeding of automatic transmission, torque-converters etc. and the hydraulic supply unit of electrodynamic type oil pump.In this hydraulic supply unit, mechanical type oil pump is by engine-driving, and the electrodynamic type oil pump is by electrical motor driven.The in-line of mechanical type oil pump is connected with oil sump, to draw the machine oil stored in oil sump.On the in-line of this mechanical type oil pump, connecting the in-line of the electrodynamic type oil pump of going out from branch this in-line.When mechanical type oil pump or electrodynamic type oil pump are driven, the machine oil stored in oil sump is picked up and is sent to oil hydraulic circuit.
Yet, in above-mentioned prior art, there is following problem, namely, out of service at the electrodynamic type oil pump, during the mechanical type oil pump isolated operation, in the machine oil picked up by mechanical type oil pump, contained bubble (air) flows into the oil circuit of the electrodynamic type oil pump be connected with the oil circuit (in-line, oil extraction road) of mechanical type oil pump sometimes, and is accumulated in the oil circuit of electrodynamic type oil pump, while making the electrodynamic type pump start, the oil pressure rate of climb is slack-off, the oil pressure response in the time of can't guaranteeing the electrodynamic type pump start.
The model utility content
In order to solve the problems of the technologies described above, the purpose of this utility model is, a kind of hydraulic supply unit of the oil pressure response can guarantee the electrodynamic type pump start time is provided.
As the technological scheme solved the problems of the technologies described above, the related hydraulic supply unit of the utility model is constituted as, at the mechanical type oil pump and the electrodynamic type oil pump that possess to the oil hydraulic circuit fuel feeding, and in the in-line of described electrodynamic type oil pump and hydraulic supply unit that the in-line of described mechanical type oil pump is connected, the oil extraction road of described electrodynamic type oil pump is connected with the oil extraction road of described mechanical type oil pump via the first one-way valve, on the position of the upstream side than the more close engine oil flow of described the first one-way valve, be provided with the discharge oil circuit branched out from the oil extraction road of described electrodynamic type oil pump, and be provided with Decompression valves in this discharge oil circuit.
Adopt said structure, be provided with the first one-way valve between the oil extraction road due to the oil extraction road of electrodynamic type oil pump and mechanical type oil pump, bubble from entering in the oil extraction road of electrodynamic type oil pump with the machine oil of mechanical type oil pump discharge so can prevent.Further, owing to being provided with discharge oil circuit and Decompression valves, so, provide the bubble of accumulating for the in-line by the electrodynamic type oil pump or oil extraction road to be discharged into outside passage.
Further, in the related hydraulic supply unit of above-mentioned the utility model, preferably, described electrodynamic type oil pump is constituted as, under the control of control device, except the operation of carrying out common operating mode, during described mechanical type oil pump isolated operation, also carry out at the appointed time the bubble that will accumulate in the in-line of described electrodynamic type oil pump or oil extraction road and by described Decompression valves, be discharged into the operation of outside air venting pattern from described discharge oil circuit.
Adopt said structure, during the mechanical type oil pump isolated operation, by making the electrodynamic type oil pump operating provisions time, the bubble of accumulating in the in-line of electrodynamic type oil pump or oil extraction road can be discharged into to outside by Decompression valves from the discharge oil circuit.Like this, when the electrodynamic type oil pump carries out the operation of common operating mode, the oil pressure energy fast rise during startup, thereby the response of the oil pressure can guarantee the electrodynamic type pump start time.
Further, in the related hydraulic supply unit of above-mentioned the utility model, preferably, the in-line of described electrodynamic type oil pump is connected with the in-line of mechanical type oil pump via the second one-way valve.Adopt this structure, the bubble contained in the machine oil picked up in the time of can utilizing the second one-way valve to prevent the mechanical type oil pump isolated operation flows in the in-line of electrodynamic type oil pump.
The accompanying drawing explanation
Fig. 1 means the Sketch figure of the vehicle of the hydraulic supply unit that possesses the first mode of execution.
Fig. 2 means the Sketch figure of the vehicle of the hydraulic supply unit that possesses the second mode of execution.
Embodiment
Below, with reference to accompanying drawing, embodiment of the present utility model is described.
The<the first mode of execution>
The vehicle 100 of the first mode of execution as shown in Figure 1, possesses: the torque-converters 3 of the lock-up clutch 2 be connected as the motor 1 of driving source, with the output shaft with motor 1, and automatic transmission 4.The output shaft of automatic transmission 4 is connected with wheel 5.The driving force of motor 1 by the torque-converters 3 with lock-up clutch 2, and automatic transmission 4 be passed to wheel 5.
Under the state that lock-up clutch 2 is decontroled, between motor 1 and automatic transmission 4, be rotated the transmission of driving force by torque-converters 3; Under the state of lock-up clutch 2 engagements, the output shaft of motor 1 directly is connected with the input shaft of automatic transmission 4.Hydraulic control valve (oil hydraulic circuit) 11 is be used to the relieving state that carries out lock-up clutch 2 and the switching of engagement, and supplies with hydraulic pressure, the automatic speed changing that this automatic transmission 4 is carried out corresponding to driving condition to the speed change clutch of automatic transmission 4.The testing signal that control unit 12 input has the testing signal that transmits from the acceleration sensor of trampling 7 that detects accelerator pedal 6, transmits from the turn-sensitive device (not shown) of the input output revolution that detects torque-converters 3; And export respectively control signal to motor 1, hydraulic control valve 11 and pump driver 23 described later, according to above-mentioned each input signal, to come control engine 1, hydraulic control valve 11 and pump driver 23.
In addition, vehicle 100 possesses the hydraulic supply unit 30 as the hydraulic pressure supply source of lock-up clutch 2 and automatic transmission 4.This hydraulic supply unit 30 comprises mechanical type oil pump 20 and electrodynamic type oil pump 21.This mechanical type oil pump 20, electrodynamic type oil pump 21 consist of the constant flow pump of gear pump, trochoid pump or vane pump etc. respectively.
Mechanical type oil pump 20 is connected with motor 1, driven by motor 1 and moves.Electrodynamic type oil pump 21 is connected with electric motor 22, driven by electric motor 22 and moves.Electric motor 22 is connected with battery 24 by pump driver 23, and the electric power be supplied to is controlled by pump driver 23.Control unit 12, to pump driver 23 output control signals, is controlled the drive condition of electric motor 22 by control pump driver 23, thereby controls the running state of electrodynamic type oil pump 21.
Hydraulic supply unit 30 also comprises: oil sump 31, filter cleaner 32, one-way valve (the first one-way valve) 39, Decompression valves 40, be connected to the first oil circuit (in-line) 33 between the intake side of filter cleaner 32 and mechanical type oil pump 20, be connected to oil extraction side and second oil circuit between hydraulic control valve 11 (oil extraction road) 34 of mechanical type oil pump 20, the 3rd oil circuit (in-line) 35 out be connected with the intake side of electrodynamic type oil pump 21 from branch the first oil circuit 33, be connected to the 4th oil circuit (oil extraction road) 36 between a side of the oil extraction side of electrodynamic type oil pump 21 and one-way valve 39, the 5th oil circuit 37 out be connected with the opposite side of one-way valve 39 from branch the second oil circuit 34, and from the 6th oil circuit (discharge oil circuit) 38 out of branch the 4th oil circuit 36.Wherein, Decompression valves 40 is arranged in the 6th oil circuit 38.
Owing between the 4th oil circuit 36 and the 5th oil circuit 37, being provided with one-way valve 39, so the machine oil that mechanical type oil pump 20 is discharged can not flow back to electrodynamic type oil pump 21 sides, in the 4th oil circuit 36, also just be difficult for accumulating bubble.When the oil extraction of mechanical type oil pump 20, force down when the oil extraction of electrodynamic type oil pump 21 is pressed, one-way valve 39 is opened, and electrodynamic type oil pump 21 arrives hydraulic control valve 11 by engine oil supplying.
Be arranged on Decompression valves 40 in the 6th oil circuit 38 for discharge from the machine oil of the 4th oil circuit 36.When the oil pressure of the 4th oil circuit 36 reaches specified value when above, this Decompression valves 40 is opened, and the machine oil that flows through the 4th oil circuit 36 is discharged into outside via Decompression valves 40 from the 6th oil circuit 38.
In addition, while for the oil extraction that prevents mechanical type oil pump 20, forcing down, (comprise when mechanical type oil pump 20 stops) that the machine oil that electrodynamic type oil pump 21 is discharged emits from the 6th oil circuit 38, the operating pressure of one-way valve 39 need to be set lower than the operating pressure of Decompression valves 40.
Below, the mechanical type oil pump 20 of the first mode of execution and the action of electrodynamic type oil pump 21 are described.
Generally, during motor 1 running, mechanical type oil pump 20 is driven and move, and electrodynamic type oil pump 21 is without operation.Now, the machine oil in oil sump 31 is picked up by mechanical type oil pump 20 via the first oil circuit 33 from filter cleaner 32, and after pressurized in mechanical type oil pump 20, is discharged to the second oil circuit 34, then is sent to hydraulic control valve 11.
And when motor 1 shut down, driving is out of service can't carry out hydraulic pressure supply to mechanical type oil pump 20 because can not get.Now, if electrodynamic type oil pump 21 obtains the driving of electric motor 22 and moves, the machine oil of oil sump 31 is from filter cleaner 32 via the first oil circuit 33 and the 3rd oil circuit 35 and picked up by electrodynamic type oil pump 21, and after pressurized in electrodynamic type oil pump 21, be discharged to the 4th oil circuit 36, then by one-way valve 39 and via the 5th oil circuit 37 and the second oil circuit 34, be sent to hydraulic control valve 11.At this, because of mechanical type oil pump 20, can't carry out hydraulic pressure supply and make the operating mode of electrodynamic type oil pump 21 operations be taken as common operating mode.In addition, the discharge pressure not enough (abnormal running) because of mechanical type oil pump 20 makes electrodynamic type oil pump 21 assist the operating mode of operation also to belong to common operating mode.
In the machine oil picked up by mechanical type oil pump 20, contain sometimes bubble (air).In the situation that mechanical type oil pump 20 operation and electrodynamic type oil pump 21 is out of service, the bubble contained in machine oil flows into and is accumulated in the 3rd oil circuit 35, the 4th oil circuit 36 of electrodynamic type oil pump 21 sides from the first oil circuit 33 sometimes.Like this, when electrodynamic type oil pump 21 started, the speed that oil pressure rises can be slack-off.
In order to address this problem, electrodynamic type oil pump 21 is under the control of control unit (ECU) 12, except carrying out, the operation of above-mentioned common operating mode, can also carrying out the operation of air venting pattern.The air venting pattern is, for example, during mechanical type oil pump 20 isolated operations, control unit 12 makes electric motor 22 drive electrodynamic type oil pump 21 or the regulation that will carry out at electrodynamic type oil pump 21 before the operation of common operating mode regularly drives electrodynamic type oil pump 21 in interval in accordance with regulations, makes the 21 operating provisions times of electrodynamic type oil pump (discharged air needed time).Like this, when electrodynamic type oil pump 21 carries out the operation of air venting pattern, the pressure of the machine oil of discharging because of mechanical type oil pump 20 is larger, one-way valve 39 is closed, so machine oil can not flow to the 5th oil circuit 37 from the 4th oil circuit 36, be accumulated in bubble in the 4th oil circuit 36 and the 3rd oil circuit 35 together with a small amount of machine oil picked up by electrodynamic type oil pump 21, from the 6th oil circuit 38, be discharged into outside by Decompression valves 40.
Adopt above-mentioned the first mode of execution, owing to being provided with one-way valve 39, bubble is difficult to enter the 4th oil circuit 36 of electrodynamic type oil pump 21, even if accumulated air in the 3rd oil circuit 35 or the 4th oil circuit 36, by during mechanical type oil pump 20 isolated operations, make electrodynamic type oil pump 21 carry out the operation of air venting pattern, also the bubble of accumulating can be discharged into to outside by the 6th oil circuit 38 and Decompression valves 40.Like this, when electrodynamic type oil pump 21 carried out the operation of common operating mode, the oil pressure rate of climb when it starts accelerated, thus the oil pressure response in the time of can guaranteeing 21 startup of electrodynamic type oil pump.
The<the second mode of execution>
Below, with reference to Fig. 2, the second mode of execution is described.The second mode of execution and above-mentioned the first mode of execution difference be, the in-line of electrodynamic type oil pump 21 is connected with the in-line of mechanical type oil pump 20 via air back valve (the second one-way valve) 41.
Particularly, with hydraulic supply unit 30, compare, in the hydraulic supply unit 30a that vehicle 101 in the second mode of execution possesses, set up air back valve 41, this air back valve 41 is arranged on the 3rd oil circuit 35 and between the 7th oil circuit 35a branched out the first oil circuit 33.Air back valve 41 is constituted as, and machine oil can flow to the 3rd oil circuit 35 from the 7th oil circuit 35a, and can not flow back to mechanical type oil pump 20 sides from electrodynamic type oil pump 21 sides.In addition, other structures of the second mode of execution are identical with the first mode of execution of above-mentioned mistake, thereby description thereof is omitted.
Below, the mechanical type oil pump 20 of the second mode of execution and the action of electrodynamic type oil pump 21 are described.
Action in mechanical type oil pump 20 isolated operation situations is identical with above-mentioned the first mode of execution.
When motor 1 stops, mechanical type oil pump 20 can not get driving and can't carry out oil pressure while supplying with, by making electrodynamic type oil pump 21 carry out the operation of common operating mode, the machine oil of oil sump 31 is picked up by electrodynamic type oil pump 21 via the first oil circuit 33, the 7th oil circuit 35a, air back valve 41 and the 3rd oil circuit 35 from filter cleaner 32, and after pressurized in electrodynamic type oil pump 21, be discharged to the 4th oil circuit 36, then by one-way valve 39, and be sent to hydraulic control valve 11 via the 5th oil circuit 37 and the second oil circuit 34.
Adopt the second mode of execution, except having one-way valve 39, the 6th oil circuit 38 and Decompression valves 40, between the 7th oil circuit 35a and the 3rd oil circuit 35, also set up air back valve 41, so in the machine oil picked up during mechanical type oil pump 20 isolated operation, contained bubble is difficult to flow to the 3rd oil circuit 35 of electrodynamic type oil pump 21 sides from the first oil circuit 33, thus the oil pressure response while further having guaranteed 21 startup of electrodynamic type oil pump.
Claims (3)
1. a hydraulic supply unit, possess mechanical type oil pump and electrodynamic type oil pump to the oil hydraulic circuit fuel feeding, and the in-line of described electrodynamic type oil pump is connected with the in-line of described mechanical type oil pump, it is characterized in that:
The oil extraction road of described electrodynamic type oil pump is connected with the oil extraction road of described mechanical type oil pump via the first one-way valve, on the position of the upstream side than the more close engine oil flow of described the first one-way valve, be provided with the discharge oil circuit branched out from the oil extraction road of described electrodynamic type oil pump, and be provided with Decompression valves in this discharge oil circuit.
2. hydraulic supply unit as claimed in claim 1 is characterized in that:
Described electrodynamic type oil pump is constituted as, under the control of control device, except the operation of carrying out common operating mode, during described mechanical type oil pump isolated operation, also carry out at the appointed time the bubble that will accumulate in the in-line of described electrodynamic type oil pump or oil extraction road and by described Decompression valves, be discharged into the operation of outside air venting pattern from described discharge oil circuit.
3. hydraulic supply unit as claimed in claim 1 or 2 is characterized in that:
The in-line of described electrodynamic type oil pump is connected with the in-line of described mechanical type oil pump via the second one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320344627XU CN203309086U (en) | 2013-06-17 | 2013-06-17 | Hydraulic supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320344627XU CN203309086U (en) | 2013-06-17 | 2013-06-17 | Hydraulic supply unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203309086U true CN203309086U (en) | 2013-11-27 |
Family
ID=49615299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320344627XU Expired - Lifetime CN203309086U (en) | 2013-06-17 | 2013-06-17 | Hydraulic supply unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203309086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637221A (en) * | 2019-03-01 | 2020-09-08 | 本田技研工业株式会社 | Hydraulic control device |
-
2013
- 2013-06-17 CN CN201320344627XU patent/CN203309086U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637221A (en) * | 2019-03-01 | 2020-09-08 | 本田技研工业株式会社 | Hydraulic control device |
| CN111637221B (en) * | 2019-03-01 | 2021-11-09 | 本田技研工业株式会社 | Hydraulic control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131127 |