CN205523717U - Novel electric drive power -assisted steering system - Google Patents
Novel electric drive power -assisted steering system Download PDFInfo
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- CN205523717U CN205523717U CN201620097345.8U CN201620097345U CN205523717U CN 205523717 U CN205523717 U CN 205523717U CN 201620097345 U CN201620097345 U CN 201620097345U CN 205523717 U CN205523717 U CN 205523717U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
The utility model discloses a novel electric drive power -assisted steering system, including power battery, two -way DCDC voltage changer, low pressure battery, power -assisted steering pump power and power -assisted steering pump, the power battery output HIGH voltage and through power -assisted steering pump power for power -assisted steering pump power supply, the forward work through two -way DCDC voltage changer was to low pressure storage battery charging the while, the low pressure battery is used for when power battery can't supply power to power -assisted steering pump power, through two -way DCDC voltage changer inverse direction operation, produces the high -tension electricity signal, supplies power to power -assisted steering pump power, the utility model discloses to have 24V DCDC power now and trade to two -way DCDC voltage changer, high pressure outage back, the low pressure battery can be given and give the power supply of power -assisted steering pump through two -way DCDC voltage changer to make the driver have the sufficient time and probably move on to position safe relatively with the car, in addition, the utility model discloses need not increase extra power supply unit, the suitability is strong.
Description
Technical field
This utility model relates to electric motor coach technical field, particularly to a kind of novel electric drive steering boost system used on hybrid power or pure electric coach.
Background technology
Hybrid power and pure electric automobile are as the product of a kind of energy-conserving and environment-protective, and prospect of the application is the best.Hybrid power in order to save fuel oil, power steering use electric drive mode, and pure electric turning booster can only electric drive, drive power supply be converted to through DC/AC voltage by electrokinetic cell High voltage output；In currently used scheme, it is assumed that the prime unidirectional current drop of steering pump power supply, such as insurance drop, or high pressure power-off, steering pump power supply can quit work, and may result in and loses the most suddenly direction power-assisted, there is potential safety hazard, it is possible to cause accident to occur.
On hybrid power and pure electric automobile, electric part has generally comprised electric machine controller case, brake air compressor power supply box, steering pump power supply box, high-tension distribution box and vehicle-mounted charge cabinet, 24VDC/DC power supply etc..Wherein 24VDC/DC power supply is made up of low tension battery and a DC/DC voltage transformation module, and it is low pressure that the latter is used for converting high-tension electricity, and charges to low tension battery.In prior art 24V power supply can only one-way only operation, namely energy can only flow to 24V DC/DC power supply from high-tension battery, charges to low tension battery, after high-tension electricity fault, power assistance pump for steering power-off, turn to and lose power-assisted, bring potential safety hazard.
Utility model content
The purpose of this utility model is just to provide a kind of novel, safer electric drive steering boost system scheme, and when system high pressure unidirectional current drop, electric drive steering boost system still has certain ability to work, solves the problems referred to above.
The technical solution of the utility model is:
A kind of novel electric drive steering boost system, including electrokinetic cell, two-way DC/DC voltage changer, low tension battery, power steering pumping source and power assistance pump for steering, wherein:
Described electrokinetic cell output HIGH voltage be that power assistance pump for steering is powered by power steering pumping source, is charged to low tension battery by the forward work of two-way DC/DC voltage changer simultaneously；
Whether described two-way DC/DC voltage changer, can be powered to power steering pumping source by the high voltage of detection electrokinetic cell output, adjust forward and reverse mode of operation；
Described low tension battery is for when electrokinetic cell cannot be powered to power steering pumping source, by two-way DC/DC voltage changer reverse operation, produces high-voltage signal, powers to power steering pumping source；
Described power steering pumping source is for directly powering for power assistance pump for steering；
Described power assistance pump for steering is for providing power-assisted for Vehicular turn, and alleviate dozen steering wheel uses force intensity.
Preferably, described two-way DC/DC voltage changer is by detecting high voltage signal and the input voltage signal of steering pump power supply of electrokinetic cell output, or receive the high pressure power-off message from steering pump power supply by communication interface, it is judged that the High Voltage Power Supply of steering pump power supply is the most normal.
Preferably, described power assistance pump for steering uses the one in direct current generator, one-way communication motor, three phase alternating current motor, three-phase squirrel cage motor and three-phase motor with permanent magnets, and power steering pumping source correspondence exports the electric current adapted.
The utility model has the advantages that:
Novel electric drive steering boost system provided by the utility model, the 24V DC/DC power supply of prior art is changed to two-way DC/DC voltage changer, after high pressure power-off, low tension battery can be powered to power assistance pump for steering by two-way DC/DC voltage changer, so that driver has time enough and car may move on to comparatively safe position, in addition, this utility model need not increase extra supply unit, not only new model can use, old vehicle can also be transformed easily, it is achieved described function of the present utility model.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and this utility model is further described by embodiment:
Fig. 1 is the electrical schematic diagram of novel electric drive steering boost system described in the utility model；
When Fig. 2 is two-way DC/DC voltage changer forward described in the utility model work, the power flow figure of steering boost system；
When Fig. 3 is two-way DC/DC voltage changer reverse operation described in the utility model, the power flow figure of steering boost system.
Detailed description of the invention
As it is shown in figure 1, the novel electric drive steering boost system disclosed in this utility model, including electrokinetic cell, two-way DC/DC voltage changer, low tension battery, power steering pumping source and power assistance pump for steering.Described electrokinetic cell output HIGH voltage be that power assistance pump for steering is powered by power steering pumping source, is charged to low tension battery by the forward work of two-way DC/DC voltage changer simultaneously；Whether described two-way DC/DC voltage changer, can be powered to power steering pumping source by the high voltage of detection electrokinetic cell output, adjust forward and reverse mode of operation；Described low tension battery is for when electrokinetic cell cannot be powered to power steering pumping source, by two-way DC/DC voltage changer reverse operation, produces high-voltage signal, powers to power steering pumping source；Described power steering pumping source is for directly powering for power assistance pump for steering；Described power assistance pump for steering is for providing power-assisted for Vehicular turn, and alleviate dozen steering wheel uses force intensity.
This utility model need not increase extra supply unit, and not only new model can use, and existing car can also be transformed easily, it is achieved described function of the present utility model.
On passenger vehicle, electric part has generally comprised electric machine controller case, brake air compressor power supply box, steering pump power supply box, high-tension distribution box and vehicle-mounted charge cabinet, 24V DC/DC power supply etc..The installation method of salary distribution of various piece the most individually belongs to this utility model scope, and electric sub-unit can exist with independent case body form, it is also possible to is integrated into one and controls assembly regulator cubicle.For two-way DC/DC voltage changer described in the utility model also can independent case body form, the most as broad as long with the most general DC/DC power supply box, power wire harness contain input high pressure DC line, output low voltage DC line and communication wire harness；Integrated control assembly cabinet scheme can merge electric machine controller, brake air compressor power supply, steering pump power supply, high voltage power distribution and Vehicular charger, two-way DC/DC voltage changer, in one, reduces electric component cumulative volume, save system space, increase system reliability simultaneously.
Existing car uses the form of independent case body, this utility model scheme does not increase extra equipment, have only to according to original 24V DC/DC power box size and space layout to relate to the two-way DC/DC voltage changer casing of this utility model scheme, then original casing is replaced with new casing, convenient and swift, exempt the trouble that original car body mechanical correction is brought.
Two-way DC/DC voltage changer described in the utility model include control unit and switching tube composition electric loop, described control unit is for by controlling the work of changer forward or reverse operation, and certain control algolithm generates switch controlling signal, switch controlling signal is for controlling the closed and disconnected of described switching tube, the electric loop of described switching tube composition, for forming different electric loops according to different switch controlling signals, exports setting voltage.
The control unit of two-way DC/DC voltage changer is by detection high-voltage signal and the input voltage signal of steering pump power supply, or receive the high pressure power-off message from steering pump power supply by CAN communication circuit, judge to determine that high-tension electricity the most normally works, thus determine reversible transducer mode of operation.As in figure 2 it is shown, high-tension electricity is converted into low pressure during forward work, charging to low tension battery, energy flows to low tension battery from high pressure, is that power assistance pump for steering is powered by power steering pumping source simultaneously.As it is shown on figure 3, low tension battery is as power supply during reverse operation, energy flows to high-tension electricity direction, and powers to steering pump power supply；The topological structure that described two-way DC/DC voltage changer implements is the DC/DC conversion of band isolation, can be the forms such as inverse-excitation type, positive activation type, push-pull type and bridge-type two-way DC/DC conversion.Two-way DC/DC voltage changer is also used as 24V power supply and provides running voltage for power steering pumping source.
Three phase alternating current motor power assistance pump for steering during power assistance pump for steering is not limited to Fig. 1～3 in this utility model scheme, can be multiple motor: direct current generator, one-way communication motor, three-phase squirrel cage motor, three-phase motor with permanent magnets etc., power steering pumping source correspondence exports the electric current adapted.
Above-described embodiment only for technology of the present utility model design and feature are described, its object is to allow person skilled in the art will appreciate that content of the present utility model and to implement according to this, can not limit protection domain of the present utility model with this.All modifications done according to the spirit of this utility model main technical schemes, all should contain within protection domain of the present utility model.
Claims (3)
1. a novel electric drive steering boost system, it is characterised in that: include electrokinetic cell, two-way DC/DC voltage changer, low tension battery, power steering pumping source and power assistance pump for steering, wherein:
Described electrokinetic cell output HIGH voltage be that power assistance pump for steering is powered by power steering pumping source, is charged to low tension battery by the forward work of two-way DC/DC voltage changer simultaneously；
Whether described two-way DC/DC voltage changer, can be powered to power steering pumping source by the high voltage of detection electrokinetic cell output, adjust forward and reverse mode of operation；
Described low tension battery is for when electrokinetic cell cannot be powered to power steering pumping source, by two-way DC/DC voltage changer reverse operation, produces high-voltage signal, powers to power steering pumping source；
Described power steering pumping source is for directly powering for power assistance pump for steering；
Described power assistance pump for steering is for providing power-assisted for Vehicular turn, and alleviate dozen steering wheel uses force intensity.
Electric drive steering boost system the most according to claim 1, it is characterized in that: described two-way DC/DC voltage changer is by detecting high voltage signal and the input voltage signal of steering pump power supply of electrokinetic cell output, or receive the high pressure power-off message from steering pump power supply by communication interface, it is judged that the High Voltage Power Supply of steering pump power supply is the most normal.
Electric drive steering boost system the most according to claim 1, it is characterized in that: described power assistance pump for steering uses the one in direct current generator, one-way communication motor, three phase alternating current motor, three-phase squirrel cage motor and three-phase motor with permanent magnets, power steering pumping source correspondence exports the electric current adapted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620097345.8U CN205523717U (en) | 2016-02-01 | 2016-02-01 | Novel electric drive power -assisted steering system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620097345.8U CN205523717U (en) | 2016-02-01 | 2016-02-01 | Novel electric drive power -assisted steering system |
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| CN205523717U true CN205523717U (en) | 2016-08-31 |
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| CN201620097345.8U Active CN205523717U (en) | 2016-02-01 | 2016-02-01 | Novel electric drive power -assisted steering system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105711421A (en) * | 2016-02-01 | 2016-06-29 | 金龙联合汽车工业（苏州）有限公司 | Novel electrically driven steering boosting system |
| CN107521348A (en) * | 2017-07-31 | 2017-12-29 | 苏州汇川联合动力***有限公司 | Electric machine controller powersupply system and electric machine controller |
| CN107539247A (en) * | 2017-07-12 | 2018-01-05 | 江苏陆地方舟新能源车辆股份有限公司 | Power steering control method and control system |
| CN110816273A (en) * | 2019-10-28 | 2020-02-21 | 武汉合康动力技术有限公司 | Vehicle oil pump motor control system |
| CN110901549B (en) * | 2019-12-10 | 2021-04-02 | 温州科丰汽车零部件有限公司 | Vehicle level sensor |
-
2016
- 2016-02-01 CN CN201620097345.8U patent/CN205523717U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105711421A (en) * | 2016-02-01 | 2016-06-29 | 金龙联合汽车工业（苏州）有限公司 | Novel electrically driven steering boosting system |
| CN107539247A (en) * | 2017-07-12 | 2018-01-05 | 江苏陆地方舟新能源车辆股份有限公司 | Power steering control method and control system |
| CN107521348A (en) * | 2017-07-31 | 2017-12-29 | 苏州汇川联合动力***有限公司 | Electric machine controller powersupply system and electric machine controller |
| CN107521348B (en) * | 2017-07-31 | 2020-05-19 | 苏州汇川联合动力***有限公司 | Power supply system of motor controller and motor controller |
| CN110816273A (en) * | 2019-10-28 | 2020-02-21 | 武汉合康动力技术有限公司 | Vehicle oil pump motor control system |
| CN110901549B (en) * | 2019-12-10 | 2021-04-02 | 温州科丰汽车零部件有限公司 | Vehicle level sensor |
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