CN105711421A - Novel electrically driven steering boosting system - Google Patents
Novel electrically driven steering boosting system Download PDFInfo
- Publication number
- CN105711421A CN105711421A CN201610067469.6A CN201610067469A CN105711421A CN 105711421 A CN105711421 A CN 105711421A CN 201610067469 A CN201610067469 A CN 201610067469A CN 105711421 A CN105711421 A CN 105711421A
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- CN
- China
- Prior art keywords
- steering
- power
- voltage
- way
- pumping source
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
- B62D5/064—Pump driven independently from vehicle engine, e.g. electric driven pump
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a novel electrically driven steering boosting system which comprises a power battery, a bidirectional DC/DC voltage changer, a low-voltage storage battery, a steering-assisted pump power source and a steering-assisted pump; a power battery outputs high voltage and supplies power to the steering-assisted pump through the steering-assisted pump power source, meanwhile the low-voltage storage battery is powered through forward direction work of the bidirectional DC/DC voltage changer; the low-voltage storage battery is used for generating a high-voltage electric signal and supplying power to the steering-assisted pump power source through inverse operation of the bidirectional DC/DC voltage changer when the power battery cannot supply power to the steering-assisted pump power source.According to the novel electrically driven steering boosting system, an existing 24 V DC/DC power source is converted to the bidirectional DC/DC voltage changer, and after high voltage outage occurs, the low-voltage storage battery can supply power to the steering-assisted pump through the bidirectional DC/DC voltage changer so that a driver can have sufficient time and possibility to drive a vehicle to a relatively safe position; besides, no extra power source is needed, and applicability is high.
Description
Technical field
The present invention 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 very good.Hybrid power in order to save fuel oil, power steering adopt 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 suddenly direction power-assisted when driving, there is potential safety hazard, it is possible to cause that accident occurs.
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 24VDC/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.
Summary of the invention
It is an object of the invention to provide a kind of novel, safer electric drive steering boost system scheme, 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 scheme is that
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；
Described two-way DC/DC voltage changer, by detecting whether the high voltage of electrokinetic cell output can power to power steering pumping source, adjusts 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 what alleviate dozen steering wheel uses force intensity.
Preferably, the input voltage signal of described two-way DC/DC voltage changer high voltage signal and steering pump power supply by detecting electrokinetic cell output, or receive the high pressure power-off message from steering pump power supply by communication interface, it is judged that whether the High Voltage Power Supply of steering pump power supply is normal.
Preferably, described power assistance pump for steering adopts 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 invention have the advantage that
Novel electric drive steering boost system provided by the present invention, the 24VDC/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 is likely to move on to car comparatively safe position, in addition, the present invention need not increase extra supply unit, not only new model can adopt, old vehicle can also be transformed easily, it is achieved the described function of the present invention.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the electrical schematic diagram of novel electric drive steering boost system of the present invention；
When Fig. 2 is two-way DC/DC voltage changer forward of the present invention work, the power flow figure of steering boost system；
When Fig. 3 is two-way DC/DC voltage changer reverse operation of the present invention, the power flow figure of steering boost system.
Detailed description of the invention
As it is shown in figure 1, disclosed 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.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；Described two-way DC/DC voltage changer, by detecting whether the high voltage of electrokinetic cell output can power to power steering pumping source, adjusts 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 what alleviate dozen steering wheel uses force intensity.
The present invention need not increase extra supply unit, and not only new model can adopt, and existing car can also be transformed easily, it is achieved the described function of the present invention.
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, 24VDC/DC power supply etc..The installation method of salary distribution of various piece does not individually belong to the scope of the invention, 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 of the present invention also can independent case body form, be substantially free of difference with DC/DC power supply box general at present, 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 adopts the form of independent case body, the present invention program does not increase extra equipment, have only to according to original 24VDC/DC power box size and space layout to relate to the two-way DC/DC voltage changer casing of the present invention program, 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 of the present invention 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 detecting the input voltage signal of high-voltage signal and steering pump power supply, or receive the high pressure power-off message from steering pump power supply by CAN communication circuit, judge to determine high-tension electricity whether normal operation, thus determining reversible transducer mode of operation.As in figure 2 it is shown, high-tension electricity converts low pressure to 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 with isolation, it is possible to for 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.
In the present invention program, power assistance pump for steering is not limited to the three phase alternating current motor power assistance pump for steering in Fig. 1～3, can being 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 design and the feature of the present invention are described, its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this, can not limit the scope of the invention with this.All modifications done according to the spirit of main technical schemes of the present invention, all should be encompassed within protection scope of the present invention.
Claims (3)
1. electric drive steering boost system one kind novel, 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；
Described two-way DC/DC voltage changer, by detecting whether the high voltage of electrokinetic cell output can power to power steering pumping source, adjusts 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 what alleviate dozen steering wheel uses force intensity.
2. electric drive steering boost system according to claim 1, it is characterized in that: the input voltage signal of described two-way DC/DC voltage changer high voltage signal and steering pump power supply by detecting electrokinetic cell output, or receive the high pressure power-off message from steering pump power supply by communication interface, it is judged that whether the High Voltage Power Supply of steering pump power supply is normal.
3. electric drive steering boost system according to claim 1, it is characterized in that: described power assistance pump for steering adopts 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 |
|---|---|---|---|
| CN201610067469.6A CN105711421A (en) | 2016-02-01 | 2016-02-01 | Novel electrically driven steering boosting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610067469.6A CN105711421A (en) | 2016-02-01 | 2016-02-01 | Novel electrically driven steering boosting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105711421A true CN105711421A (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610067469.6A Pending CN105711421A (en) | 2016-02-01 | 2016-02-01 | Novel electrically driven steering boosting system |
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| CN (1) | CN105711421A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107672546A (en) * | 2017-10-20 | 2018-02-09 | 厦门马恒达汽车零部件有限公司 | A kind of inverter controller assembly and control method with the input of high-low pressure dual power supply |
| CN109649373A (en) * | 2018-12-19 | 2019-04-19 | 安徽江淮汽车集团股份有限公司 | A kind of vehicle-mounted 12V power source charges voltage setting value control method of hybrid vehicle |
| CN110112959A (en) * | 2019-05-09 | 2019-08-09 | 赣州时代新能源动力系统有限公司 | It is a kind of can two-way charging double source motor low voltage control system |
| CN110281866A (en) * | 2019-07-05 | 2019-09-27 | 吉林大学青岛汽车研究院 | A kind of double source railless electric heavy truck power-assisted steering and its braking system energy supply scheme |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007001324A (en) * | 2005-06-21 | 2007-01-11 | Toyota Motor Corp | Electric power steering device |
| CN201329816Y (en) * | 2008-12-31 | 2009-10-21 | 众泰控股集团有限公司 | Entire automobile electric system for electric automobile |
| CN103786785A (en) * | 2012-10-31 | 2014-05-14 | 株式会社捷太格特 | Electric power steering system |
| CN103879443A (en) * | 2012-12-20 | 2014-06-25 | 株式会社捷太格特 | Electrical power steering apparatus |
| CN205523717U (en) * | 2016-02-01 | 2016-08-31 | 金龙联合汽车工业（苏州）有限公司 | Novel electric drive power -assisted steering system |
-
2016
- 2016-02-01 CN CN201610067469.6A patent/CN105711421A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007001324A (en) * | 2005-06-21 | 2007-01-11 | Toyota Motor Corp | Electric power steering device |
| CN201329816Y (en) * | 2008-12-31 | 2009-10-21 | 众泰控股集团有限公司 | Entire automobile electric system for electric automobile |
| CN103786785A (en) * | 2012-10-31 | 2014-05-14 | 株式会社捷太格特 | Electric power steering system |
| CN103879443A (en) * | 2012-12-20 | 2014-06-25 | 株式会社捷太格特 | Electrical power steering apparatus |
| CN205523717U (en) * | 2016-02-01 | 2016-08-31 | 金龙联合汽车工业（苏州）有限公司 | Novel electric drive power -assisted steering system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107672546A (en) * | 2017-10-20 | 2018-02-09 | 厦门马恒达汽车零部件有限公司 | A kind of inverter controller assembly and control method with the input of high-low pressure dual power supply |
| CN109649373A (en) * | 2018-12-19 | 2019-04-19 | 安徽江淮汽车集团股份有限公司 | A kind of vehicle-mounted 12V power source charges voltage setting value control method of hybrid vehicle |
| CN110112959A (en) * | 2019-05-09 | 2019-08-09 | 赣州时代新能源动力系统有限公司 | It is a kind of can two-way charging double source motor low voltage control system |
| CN110281866A (en) * | 2019-07-05 | 2019-09-27 | 吉林大学青岛汽车研究院 | A kind of double source railless electric heavy truck power-assisted steering and its braking system energy supply scheme |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160629 |