CN203111300U - Novel energy-efficient electric control power assisted steering system - Google Patents
Novel energy-efficient electric control power assisted steering system Download PDFInfo
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- CN203111300U CN203111300U CN201320100494.1U CN201320100494U CN203111300U CN 203111300 U CN203111300 U CN 203111300U CN 201320100494 U CN201320100494 U CN 201320100494U CN 203111300 U CN203111300 U CN 203111300U
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Abstract
The utility model relates to a novel energy-efficient electric control power assisted steering system, which belongs to the field of power-assisted steering devices, and comprises a steering gearbox. The novel energy-efficient electric control power assisted steering system is characterized in that the system also comprises an electric hydraulic pump connected to the steering gearbox, a hydraulic pipeline, a fuel tank communicated with the electric hydraulic pump, an electric control unit respectively connected to the steering gearbox and the electric hydraulic pump, and a hydraulic accumulator disposed at the hydraulic pipeline. The novel energy-efficient electric control power assisted steering system is advantageous in that assistance force is large; energy density is high; energy is saved; hand feel of the power assistance can be changed with the vehicle speed.
Description
Technical field
The utility model belongs to the power steering apparatus field, is specifically related to the automatically controlled servo steering system of a kind of novel energy-saving.
Background technology
Current automobile has assembled servo steering system nearly all, and its original intention is in order to reduce the labour intensity of pilot control vehicle, to improve the driver comfort of vehicle.The direction of modern steering swivel system development then is to pass through The application of new technique, reduce the consumption of energy and to the pollution of environment, and by the meticulous design to assist characteristic, for the driver provides different feel feedbacks, highlight vehicle and drive the control feature, bring more driving enjoyment.
Traditional hydraulic power-assist steering system (HPS) relies on driving engine to drive boost pump energy is provided, and is used for power steering.As long as engine running, system is just at consumed energy, and do not depend on whether handling maneuver is arranged.In addition, the power-assisted size that traditional HPS provides can't be regulated with the speed of a motor vehicle, can't take into account the bigger original place operating mode of power-assisted demand and the less driving cycle of power-assisted demand, often cause the power-assisted feel of " original place is heavy; high speed is unstable ", and day by day embody various drawbacks, be particular about control with comfortable manned vehicle on substituted by the variable hydraulic power-assist steering system of more senior feel gradually, but the cost of this senior variable force aid system be traditional HPS 2-3 doubly, be of limited application.
Last century end, electric boosting steering system (EPS) arises at the historic moment, this new system adopts motor to provide power-assisted for steering swivel system, only when turning to, needs just do work, saved energy consumption greatly, and owing to be system wholly computer controlled, the power-assisted size is regulated according to the speed of a motor vehicle easily also, cost is also accepted by middle-grade car easily, so application is increasing.But the EPS system then seems helpless because the restriction of power of motor, storage battery capacity and dynamo current only is adapted at the manned vehicle field of curb mass below 2 tons and uses for the much bigger commercial vehicle/comm..vehicle of weight.
The utility model content
Technical purpose of the present utility model is to overcome the problems of the prior art, provides that a kind of power-assisted is big, energy density is high, energy-conservation, power-assisted feel is with the automatically controlled servo steering system of the variable novel energy-saving of the speed of a motor vehicle (EHPS).
For realizing the purpose of this utility model, the technical solution adopted in the utility model is: the automatically controlled servo steering system of a kind of novel energy-saving, comprise the direction machine, it is characterized in that: also comprise the fuel tank of the electric hydraulic pump that is connected with the direction machine, hydraulic tubing, connection electric hydraulic pump, the ECU (Electrical Control Unit) that is connected with electric hydraulic pump with the direction machine respectively, the hydraulic energy storage device that is arranged at hydraulic tubing.
The automatically controlled servo steering system of aforesaid a kind of novel energy-saving, hydraulic tubing also is provided with pressure sensor, apportioning valve, and pressure sensor is between electric hydraulic pump and apportioning valve, and apportioning valve is connected with ECU (Electrical Control Unit) with the direction machine simultaneously.
The automatically controlled servo steering system of aforesaid a kind of novel energy-saving is provided with temperature sensor between described fuel tank and the ECU (Electrical Control Unit).
The automatically controlled servo steering system of aforesaid a kind of novel energy-saving, described ECU (Electrical Control Unit) also are connected with the rotary angle transmitter of average speed indicator, bearing circle; Rotary angle transmitter is connected with the direction machine.
The automatically controlled servo steering system of aforesaid a kind of novel energy-saving, the vehicle speed signal that described average speed indicator sends is passed to ECU (Electrical Control Unit), the tach signal that steering wheel angle sensor sends is passed to ECU (Electrical Control Unit), and ECU (Electrical Control Unit) is passed to apportioning valve with vehicle speed signal and tach signal.
The automatically controlled servo steering system of aforesaid a kind of novel energy-saving, the fuel tank oil liquid temperature signal that described temperature sensor sends is passed to ECU (Electrical Control Unit), and ECU (Electrical Control Unit) is passed to apportioning valve with fuel tank oil liquid temperature signal.
The automatically controlled servo steering system of aforesaid a kind of novel energy-saving, described pressure sensor is connected with ECU (Electrical Control Unit).
The utility model has replaced the Hydraulic Pump that driving engine directly drives with electric hydraulic pump, can allow pump along with system need start or stop, and has played the effect of conserve energy; Electric hydraulic pump can be close to the installation of direction machine, farthest shortens hydraulic tubing back and forth, reduces loss of pressure and energy dissipation, apart from vehicle, improves especially obvious for rear-engined major axis; Because motor power (output) is limited, in order not influence the maximum power-assisted of system, has added a hydraulic energy storage device in the pressure duct, be used for the savings hydraulic energy, when pivot stud, can provide bigger power-assisted; In the high-pressure and hydraulic pipeline, add apportioning valve,, for the different speed of a motor vehicle provides different power-assisted feels, played the turning efficiency of " low speed is light, and is stable at a high speed " according to charge oil pressure and the flow of the speed of a motor vehicle and bearing circle speed adjustment system; Add temperature sensor in the system, be used for the compensation oil viscosity with variation of temperature, under different temperature, revise the aperture of apportioning valve, make the power-assisted feel not be subjected to the influence of oil liquid temperature.
Description of drawings
Fig. 1 is the structural representation of the automatically controlled servo steering system of a kind of novel energy-saving;
Wherein, 1 fuel tank, 2 temperature sensors, 3 electric hydraulic pumps, 4 pressure sensors, 5 hydraulic energy storage devices, 6 apportioning valves, 7 ECU (Electrical Control Unit), 8 direction machines, 9 rotary angle transmitters, 10 bearing circle, 11 average speed indicators.
The specific embodiment
For technical scheme, technical characterictic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the utility model.
According to Fig. 1, the automatically controlled servo steering system of a kind of novel energy-saving, comprise direction machine 8, it is characterized in that: also comprise the fuel tank 1 of the electric hydraulic pump 3 that is connected with direction machine 8, hydraulic tubing, connection electric hydraulic pump 3, the ECU (Electrical Control Unit) 7 that is connected with electric hydraulic pump 3 with direction machine 8 respectively, the hydraulic energy storage device 5 that is arranged at hydraulic tubing.Hydraulic tubing also is provided with pressure sensor 4, apportioning valve 6, and pressure sensor 4 is between electric hydraulic pump 3 and apportioning valve 6, and apportioning valve 6 is connected with ECU (Electrical Control Unit) 7 with direction machine 8 simultaneously, and pressure sensor 4 is connected with ECU (Electrical Control Unit) 7.Be provided with temperature sensor 2 between fuel tank 1 and the ECU (Electrical Control Unit) 7.ECU (Electrical Control Unit) 7 also is connected with the rotary angle transmitter 9 of average speed indicator 11, bearing circle 10, and rotary angle transmitter 9 is connected with direction machine 8.The vehicle speed signal that average speed indicator 11 sends is passed to ECU (Electrical Control Unit) 7, and the tach signal that bearing circle 10 rotary angle transmitters 9 send is passed to ECU (Electrical Control Unit) 7, and ECU (Electrical Control Unit) 7 is passed to apportioning valve 6 with vehicle speed signal and tach signal.The fuel tank oil liquid temperature signal that temperature sensor 2 sends is passed to ECU (Electrical Control Unit) 7, and ECU (Electrical Control Unit) 7 is passed to apportioning valve 6 with fuel tank oil liquid temperature signal.
The concrete control process of system of the present utility model is as follows: 1) ECU (Electrical Control Unit) 7 judges whether to start electric hydraulic pump 3 continuation supplementary pressures according to the pressure of hydraulic energy storage device 5, sets down in limited time motor start-up when pressure is lower than; When reaching capping, electrical motor stops.When the speed of a motor vehicle is higher, set lower limit and can suitably reduce, to prolong the rundown time of electrical motor, reduce frequent starting.2) under the operating mode of original place, bearing circle 10 rotating speeds are 0, and when namely not having handling maneuver, apportioning valve 6 turn-offs, and hydraulic energy storage device 5 is in packing state.Bearing circle 10 rotating speeds are not 0 o'clock, and apportioning valve 6 is opened to maximum, and system can provide maximum power-assisted.3) under the driving cycle, bearing circle 10 corners are 0, and when namely not having handling maneuver, apportioning valve 6 turn-offs, and hydraulic energy storage device 5 is in packing state.Bearing circle 10 corners are not 0 o'clock, and ECU (Electrical Control Unit) 7 is according to the aperture of current vehicle speed decision apportioning valve 6, and general relationship is that the speed of a motor vehicle is more high, and apportioning valve 6 apertures are more little.
The utility model has replaced the Hydraulic Pump that driving engine directly drives with electric hydraulic pump 3, can allow pump along with system need start or stop, and has played the effect of conserve energy; Electric hydraulic pump 3 can be close to 8 installations of direction machine, farthest shortens hydraulic tubing back and forth, reduces loss of pressure and energy dissipation, apart from vehicle, improves especially obvious for rear-engined major axis; Because motor power (output) is limited, in order not influence the maximum power-assisted of system, has added a hydraulic energy storage device 5 in the pressure duct, be used for the savings hydraulic energy, when pivot stud, can provide bigger power-assisted; In the high-pressure and hydraulic pipeline, add apportioning valve 6,, for the different speed of a motor vehicle provides different power-assisted feels, played the turning efficiency of " low speed is light, and is stable at a high speed " according to charge oil pressure and the flow of the speed of a motor vehicle and bearing circle speed adjustment system; Add temperature sensor 2 in the system, be used for the compensation oil viscosity with variation of temperature, under different temperature, revise the aperture of apportioning valve 6, make the power-assisted feel not be subjected to the influence of oil liquid temperature.
More than show and described groundwork of the present utility model, principal character and advantage of the present utility model.The technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification sheets just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. automatically controlled servo steering system of novel energy-saving, comprise the direction machine, it is characterized in that: also comprise the fuel tank of the electric hydraulic pump that is connected with the direction machine, hydraulic tubing, connection electric hydraulic pump, the ECU (Electrical Control Unit) that is connected with electric hydraulic pump with the direction machine respectively, the hydraulic energy storage device that is arranged at hydraulic tubing.
2. the automatically controlled servo steering system of a kind of novel energy-saving according to claim 1, it is characterized in that: hydraulic tubing also is provided with pressure sensor, apportioning valve, pressure sensor is between electric hydraulic pump and apportioning valve, and apportioning valve is connected with ECU (Electrical Control Unit) with the direction machine simultaneously.
3. the automatically controlled servo steering system of a kind of novel energy-saving according to claim 1 is characterized in that: be provided with temperature sensor between described fuel tank and the ECU (Electrical Control Unit).
4. the automatically controlled servo steering system of a kind of novel energy-saving according to claim 2, it is characterized in that: described ECU (Electrical Control Unit) also is connected with the rotary angle transmitter of average speed indicator, bearing circle; Rotary angle transmitter is connected with the direction machine.
5. the automatically controlled servo steering system of a kind of novel energy-saving according to claim 4, it is characterized in that: the vehicle speed signal that described average speed indicator sends is passed to ECU (Electrical Control Unit), the tach signal that steering wheel angle sensor sends is passed to ECU (Electrical Control Unit), and ECU (Electrical Control Unit) is passed to apportioning valve with vehicle speed signal and tach signal.
6. the automatically controlled servo steering system of a kind of novel energy-saving according to claim 3, it is characterized in that: the fuel tank oil liquid temperature signal that described temperature sensor sends is passed to ECU (Electrical Control Unit), and ECU (Electrical Control Unit) is passed to apportioning valve with fuel tank oil liquid temperature signal.
7. the automatically controlled servo steering system of a kind of novel energy-saving according to claim 2, it is characterized in that: described pressure sensor is connected with ECU (Electrical Control Unit).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320100494.1U CN203111300U (en) | 2013-03-06 | 2013-03-06 | Novel energy-efficient electric control power assisted steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320100494.1U CN203111300U (en) | 2013-03-06 | 2013-03-06 | Novel energy-efficient electric control power assisted steering system |
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| Publication Number | Publication Date |
|---|---|
| CN203111300U true CN203111300U (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320100494.1U Withdrawn - After Issue CN203111300U (en) | 2013-03-06 | 2013-03-06 | Novel energy-efficient electric control power assisted steering system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121468A (en) * | 2013-03-06 | 2013-05-29 | 苏州绿控传动科技有限公司 | Novel energy-saving type electronic control power-assisted steering system |
-
2013
- 2013-03-06 CN CN201320100494.1U patent/CN203111300U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121468A (en) * | 2013-03-06 | 2013-05-29 | 苏州绿控传动科技有限公司 | Novel energy-saving type electronic control power-assisted steering system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 1268, Jiaotong South Road, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province, 215200 Patentee after: SUZHOU LVKON TRANSMISSION TECHNOLOGY Co.,Ltd. Address before: No. 1268, Jiaotong South Road, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province, 215200 Patentee before: SUZHOU LVKON TRANSMISSION S&T Co.,Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130807 Effective date of abandoning: 20221130 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130807 Effective date of abandoning: 20221130 |