CN201818458U - Double-drive oil pump - Google Patents
Double-drive oil pump Download PDFInfo
- Publication number
- CN201818458U CN201818458U CN2009202089141U CN200920208914U CN201818458U CN 201818458 U CN201818458 U CN 201818458U CN 2009202089141 U CN2009202089141 U CN 2009202089141U CN 200920208914 U CN200920208914 U CN 200920208914U CN 201818458 U CN201818458 U CN 201818458U
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- CN
- China
- Prior art keywords
- clutch
- hybrid power
- oil pump
- power gearbox
- input shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a double-drive oil pump of a hybrid electric vehicle, which comprises a pump body, a drive motor and a hydraulic circuit, and is characterized in that the pump body is provided with two input shafts of a left input shaft and a right input shaft, the left input shaft is connected with the drive motor through a left clutch, the right input shaft is connected with an output shaft of a hybrid power gearbox through a right clutch, the hydraulic oil input end of the pump body is communicated with an oil tank, and the hydraulic oil output end of the pump body is communicated with each hydraulic control mechanism through a one-way valve. When the shaft speed of the output shaft of the hybrid power gearbox is lower, the flow of the pump body may be not enough if the oil pump is driven by the output shaft of the hybrid power gearbox, because the flow of the oil pump and the speed of the oil pump are in progressively increasing relationship. When the shaft speed of the output shaft of the hybrid power gearbox is lower, the motor must be used to drive the pump body to provide pressure oil required by the operation of the hybrid power gearbox.
Description
Technical field
The utility model relates to a kind of automobile-used oil pump, especially relates to a kind of two driving oil pumps of hybrid vehicle.
Background technique
Hybrid vehicle is when the engine misses operating mode, the oil pump that is connected with motor also quits work, and in order to provide work required pressure oil to hybrid power gearbox, the oil pump work of another one must be arranged, be generally electric oil pump, provide hybrid power gearbox work required pressure oil.Simultaneously, when engine start, oil pump should be driven by motor, and motor must quit work.So the two driving oil pumps of general employing on the hybrid vehicle, and can switch mutually.As shown in Figure 1, be (the application number: scheme 01815184.1) of the electric oil pump controller in Toyota's patent of invention.Two oil pumps are arranged in this scheme, are respectively mechanical oil pump and electric oil pump.When motor quits work, electric oil pump work, pressure oil passes through the main pressure regulator valve pressure regulation again by the right chamber of switching valve mechanism, goes to control corresponding actuator in the gearbox (for example clutch control valve removes to control clutch in the gearbox etc.) by control valve then; When engine operation, the work of engine-driven oil pump, pressure oil passes through the main pressure regulator valve pressure regulation again by chamber, a switching valve mechanism left side, goes to control corresponding actuator in the gearbox by control valve then.The major defect of this pair of driving oil pump is:
1, the cost height of two driving oil pumps
Two oil pumps (mechanical oil pump and electric oil pump) are arranged, on making, increase cost with fit on;
2, during the engine-driven oil pump, system effectiveness is low
Engine operation rotating speed interval is about 800-6000rpm, when the engine operation rotating speed when 3000rpm is above, the engine-driven pump work, the mechanical pump rotating speed is the same with engine speed, the flow of mechanical pump is just very big, the hybrid power gearbox hydraulic system does not need so many pressure oil, and unnecessary pressure oil causes the waste of bigger energy and makes system's heating by the main pressure regulator valve drain charge.
Summary of the invention
The utility model mainly be solve that the existing in prior technology energy consumption is big, cost is high, the technical problem of easy heating etc., a kind of simple in structure, energy consumption is low, cost is low two driving oil pumps and control system thereof are provided.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of pair of driving oil pump, comprise the pump housing, drive motor and hydraulic circuit, the input shaft of the described pump housing is divided into left input shaft and right input shaft, left side input shaft links to each other with drive motor by left clutch, right input shaft links to each other with the hybrid power gearbox output shaft by right clutch, the hydraulic oil input end of the pump housing is connected with fuel tank, and the hydraulic oil output terminal of the pump housing is connected with each hydraulic control by an one-way valve.When hybrid power gearbox output shaft rotating speed is low, if rely on the hybrid power gearbox output shaft to drive oil pump, may cause pump housing flow not enough, be because oil pump flow and pump speed are to increase progressively relation.When hybrid power gearbox output shaft rotating speed is low, must use the motor driving pump housing, provide hybrid power gearbox work required pressure oil.Otherwise, when hybrid power gearbox goes out rotating speed when higher, just driving the pump housing by output shaft of gear-box, motor quits work simultaneously.Two kinds of drivings are switched easily by left and right sides clutch and are finished.
As preferably, the oil circuit between the described pump housing and each hydraulic control is provided with a main inlet control valve.When pump housing control oil mass is excessive, need oil mass to be controlled, to reach suitable flow by main inlet control valve.
As preferably, described right clutch is the overrunning clutch that the hybrid power gearbox output shaft carries out the moment of torsion input to the right input shaft of the pump housing.When overrunning clutch inner ring rotating speed is higher than the outer ring, inner ring will not be subjected to the constraint of outer ring; Overrunning clutch outer ring rotating speed is during a little more than inner ring, and inner ring is subjected to the constraint of outer ring, and outer ring and inner ring will rotate synchronously.When hybrid power gearbox output shaft rotating speed is low, overrunning clutch outer ring and the engagement of hybrid power gearbox output shaft gear, so overrunning clutch outer ring rotating speed is lower, overrunning clutch separates, the work of the motor driving pump housing, provide hybrid power gearbox work required pressure oil, and motor speed, pump speed and overrunning clutch inner ring rotating speed equate and are higher than overrunning clutch outer ring rotating speed.When hybrid power gearbox output shaft rotating speed is higher, overrunning clutch outer ring and the engagement of hybrid power gearbox output shaft gear, so overrunning clutch outer ring rotating speed is higher, motor speed is lower than overrunning clutch outer ring rotating speed, and according to the working principle of overrunning clutch, the overrunning clutch inner ring is driven synchronously by the outer ring and rotates, inner ring drives oil pump and rotates synchronously, provide hybrid power gearbox work required pressure oil, the control motor quits work, and left clutch separates.
As preferably, described left clutch is a magnetic clutch.When the needs motor driving pump housing, magnetic clutch closes up, and that returns then separates.
In order to realize the closing from switching of above-mentioned pair of driving oil pump, the utility model also comprises the control system of this pair driving oil pump, and this control system is provided with a control unit, and the signal input part of control unit links to each other with a speed sensor of being located on the gearbox.The rate signal control that control unit sends according to the inductor on the clutch is by motor or the also moving machine operation of output shaft of gear-box.
As preferably, the control signal output terminal of described control unit links to each other with the control circuit of left and right sides clutch and drive motor respectively.In this case, left and right sides clutch all can adopt magnetic clutch.When hybrid power gearbox output shaft rotating speed was low, control unit control left clutch closed up, and right clutch separates, and starting electrical machinery; When hybrid power gearbox output shaft rotating speed was higher, control unit control right clutch closed up, and left clutch separates, and stops motor.Control unit is provided with one and drives switching critical speed of rotation value, and left clutch separates when described hybrid power gearbox output shaft rotating speed is equal to or higher than driving switching critical speed of rotation value, and right clutch closes up; Right clutch separates when described hybrid power gearbox output shaft rotating speed is lower than driving switching critical speed of rotation value, and left clutch closes up, and starts drive motor.
The beneficial effect that brings of the present utility model is, solved that the existing in prior technology energy consumption is big, cost is high, the technical problem of easy heating etc., realized a kind of simple in structure, energy consumption is low, cost is low, the two easily driving oil pumps of control and control system thereof.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of existing pair of driving oil pump;
Accompanying drawing 2 is a kind of structural representations of the present utility model;
Accompanying drawing 3 is that a kind of structural representation of the present utility model is thought.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1:
Accompanying drawing 2 is a kind of structural representations of the present utility model.The utility model is an a kind of pair of driving oil pump, comprise the pump housing 1, drive motor and hydraulic circuit, the described pump housing is provided with left and right sides dual input shaft, and left input shaft 5 links to each other with drive motor by left clutch 4, and right input shaft 6 links to each other with hybrid power gearbox output shaft 3 by right clutch 8.Left and right sides clutch is magnetic clutch.The hydraulic oil input end of the pump housing is connected with fuel tank, and the hydraulic oil output terminal of the pump housing is connected with each hydraulic control by an one-way valve 7.Oil circuit between the pump housing and each hydraulic control is provided with a main inlet control valve.
The control system of two driving oil pumps is provided with a control unit, and the signal input part of control unit links to each other with a speed sensor of being located on the gearbox.The control signal output terminal of control unit links to each other with the control circuit of left and right sides clutch and drive motor respectively.Control unit is provided with one and drives switching critical speed of rotation value, and left clutch separates when described hybrid power gearbox output shaft rotating speed is equal to or higher than driving switching critical speed of rotation value, and right clutch closes up; Right clutch separates when described hybrid power gearbox output shaft rotating speed is lower than driving switching critical speed of rotation value, and left clutch closes up, and starts drive motor.
When hybrid power gearbox output shaft rotating speed is low, if rely on the hybrid power gearbox output shaft to drive oil pump, may cause pump housing flow not enough, be because oil pump flow and pump speed are to increase progressively relation.When hybrid power gearbox output shaft rotating speed is low, must use the motor driving pump housing, provide hybrid power gearbox work required pressure oil.Otherwise, when hybrid power gearbox goes out rotating speed when higher, just driving the pump housing by output shaft of gear-box, motor quits work simultaneously.Two kinds of drivings are switched easily by left and right sides clutch and are finished.
Embodiment 2:
In order further to simplify control procedure, the left clutch described in the embodiment 1 still adopts magnetic clutch, and right clutch then adopts overrunning clutch 2.The control signal output terminal of control unit links to each other with the control circuit of left and right sides clutch and drive motor respectively.
When hybrid power gearbox output shaft rotating speed is low, overrunning clutch outer ring and the engagement of hybrid power gearbox output shaft gear, so overrunning clutch outer ring rotating speed is lower, overrunning clutch separates, the work of the motor driving pump housing, provide hybrid power gearbox work required pressure oil, and motor speed, pump speed and overrunning clutch inner ring rotating speed equate and are higher than overrunning clutch outer ring rotating speed.When hybrid power gearbox output shaft rotating speed is higher, overrunning clutch outer ring and the engagement of hybrid power gearbox output shaft gear, so overrunning clutch outer ring rotating speed is higher, motor speed is lower than overrunning clutch outer ring rotating speed, and according to the working principle of overrunning clutch, the overrunning clutch inner ring is driven synchronously by the outer ring and rotates, inner ring drives oil pump and rotates synchronously, provide hybrid power gearbox work required pressure oil, the control motor quits work, and left clutch separates.
From the overrunning clutch mechanical property, present embodiment can also be according to the needs of space and structure, and motor and gearbox are located at the same side of the pump housing, and the pump housing adopts same input shaft.This scheme is under the disclosed situation of technical characteristics of the present utility model, and those of ordinary skill should carry out adaptive variation according to the structure needs.
So the utlity model has characteristics such as simple in structure, that energy consumption is low, cost is low, control is convenient.
Claims (7)
1. two driving oil pump, comprise the pump housing, drive motor and hydraulic circuit, the input shaft that it is characterized in that the described pump housing is divided into left input shaft and right input shaft, left side input shaft (5) links to each other with drive motor by left clutch (4), right input shaft (6) links to each other with hybrid power gearbox output shaft (3) by right clutch, the hydraulic oil input end of the pump housing is connected with fuel tank, and the hydraulic oil output terminal of the pump housing is connected with each hydraulic control by an one-way valve (7).
2. a kind of pair of driving oil pump according to claim 1 is characterized in that the oil circuit between the described pump housing and each hydraulic control is provided with a main inlet control valve.
3. a kind of pair of driving oil pump according to claim 1 and 2 is characterized in that described right clutch is the overrunning clutch (2) that the hybrid power gearbox output shaft carries out the moment of torsion input to the right input shaft of the pump housing.
4. a kind of pair of driving oil pump according to claim 1 and 2 is characterized in that described left clutch is a magnetic clutch.
5. a kind of pair of driving oil pump according to claim 3 is characterized in that described left clutch is a magnetic clutch.
6. control system of controlling described pair of driving oil pump of claim 1, it is characterized in that: this control system is provided with a control unit, and the signal input part of control unit links to each other with a speed sensor of being located on the gearbox.
7. control system according to claim 6 is characterized in that the control signal output terminal of described control unit links to each other with the control circuit of left and right sides clutch and drive motor respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202089141U CN201818458U (en) | 2009-09-15 | 2009-09-15 | Double-drive oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202089141U CN201818458U (en) | 2009-09-15 | 2009-09-15 | Double-drive oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818458U true CN201818458U (en) | 2011-05-04 |
Family
ID=43916415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202089141U Expired - Lifetime CN201818458U (en) | 2009-09-15 | 2009-09-15 | Double-drive oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818458U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022303A (en) * | 2009-09-15 | 2011-04-20 | 上海华普汽车有限公司 | Dual-driving oil pump and control system thereof |
-
2009
- 2009-09-15 CN CN2009202089141U patent/CN201818458U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022303A (en) * | 2009-09-15 | 2011-04-20 | 上海华普汽车有限公司 | Dual-driving oil pump and control system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: SHANGHAI HUAPU GUORUN AUTO CO., LTD. Effective date: 20150713 Owner name: CORUN HYBRID TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHANGHAI MAPLE AUTOMOBILE CO., LTD. Effective date: 20150713 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150713 Address after: 410205. 348, 102, west slope, Changsha hi tech Development Zone, Changsha, Hunan, 101, China, Tongzi Patentee after: Ke Liyuan Technology of Hybrid Electric Vehicle Co., Ltd Address before: 201501 Shanghai city Jinshan District Fengjing Industrial Park Shanghai Maple Automobile Co. Patentee before: Shanghai Maple Automobile Co., Ltd. Patentee before: Shanghai Huapu Guorun Auto Co., Ltd. |
|
| CP02 | Change in the address of a patent holder |
Address after: 528000 room 601-604, building A, block, building 131, Jihua West Road, Chancheng District, Guangdong, Foshan Patentee after: Ke Liyuan Technology of Hybrid Electric Vehicle Co., Ltd Address before: 410205. 348, 102, west slope, Changsha hi tech Development Zone, Changsha, Hunan, 101, China, Tongzi Patentee before: Ke Liyuan Technology of Hybrid Electric Vehicle Co., Ltd |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuxi Ming Heng Hybrid Power Technology Co., Ltd. Assignor: Ke Liyuan Technology of Hybrid Electric Vehicle Co., Ltd Contract record no.: 2018530000001 Denomination of utility model: Dual-driving oil pump and control system thereof Granted publication date: 20110504 License type: Common License Record date: 20180103 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |
|
| CX01 | Expiry of patent term |