CN106274757A - A kind of have the high-low pressure Electro-Hydraulic Power Steering System for power conversion circuit - Google Patents
A kind of have the high-low pressure Electro-Hydraulic Power Steering System for power conversion circuit Download PDFInfo
- Publication number
- CN106274757A CN106274757A CN201610799458.7A CN201610799458A CN106274757A CN 106274757 A CN106274757 A CN 106274757A CN 201610799458 A CN201610799458 A CN 201610799458A CN 106274757 A CN106274757 A CN 106274757A
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- China
- Prior art keywords
- low
- low pressure
- steering system
- translation function
- power source
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 10
- 230000005669 field effect Effects 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
-
- 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
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
- B62D5/046—Controlling the motor
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention provides and a kind of there is high-low pressure for the Electro-Hydraulic Power Steering System of power conversion circuit, for the assisted diversion of vehicle, mainly include that high pressure main power source, low-tension supply, high-low pressure are powered translation function circuit and controller.Wherein, high pressure main power source is simultaneously connected with high-low pressure and powers translation function circuit and controller.Described high-low pressure translation function circuit of powering includes DC boosting module, and low-tension supply connects controller through DC boosting module.Technical scheme includes that high pressure main power source and low-tension supply and high-low pressure are powered translation function circuit, high-low pressure translation function circuit of powering can monitor the duty of high pressure main power source in real time, lose when normal high pressure main power source is powered moment can be rapidly switched to low-tension supply at vehicle electric hydraulic power-assist steering system, to ensure that vehicle is unlikely to turn to out of control.
Description
Technical field
The invention belongs to motor control technologies field, relate to vehicle electric hydraulic power-assist steering system, specifically a kind of
There is the high-low pressure Electro-Hydraulic Power Steering System for power conversion circuit.
Background technology
Electrohydraulic steering guider, be applied to heavy-duty commercial vehicle (such as truck, bus) and electri forklift,
The steering of agricultural vehicle, hybrid electric vehicle etc., is made up of with controller motor, turn to compared to traditional mechanical-hydraulic or
Electrohydraulic steering has an enormous advantage.
But unsafe problem that current electrohydraulic steering guider exists, such as in steering procedure suddenly
Lose normal high pressure main power source, be easily caused Vehicular turn out of control, consequently, it is possible to cause the accident.
Summary of the invention
The invention aims to overcome vehicle electric hydraulic power-assist steering system in prior art to lose suddenly high pressure
The potential safety hazard that main power source power supply station brings, it is provided that a kind of have the high-low pressure electric-controlled hydraulic power-assisted steering for power conversion circuit
System, vehicle electric hydraulic power-assist steering system lose normal high pressure main power source power time, can be rapidly switched to directly moment
Flow 12 volts or 24 volts of low-tension supplies provide temporary power, to ensure that vehicle is unlikely to turn to out of control.
Technical scheme is as follows:
A kind of have the high-low pressure Electro-Hydraulic Power Steering System for power conversion circuit, for the assisted diversion of vehicle,
Mainly include that high pressure main power source, low-tension supply, high-low pressure are powered translation function circuit and controller.Wherein, high pressure main power source is same
Time connect high-low pressure and power translation function circuit and controller.Described high-low pressure translation function circuit of powering includes DC boosting mould
Block, low-tension supply connects controller through DC boosting module.
Controller is for driving the motor of assist steering system.
High-low pressure is powered translation function main circuit comparator to be included chip, electronic switching tube, DC boosting module, some
Resistance and some diodes.
Low-tension supply connects controller through power DC boosting module in translation function circuit of high-low pressure.
High pressure main power source is 100V to 500V DC source, and low-tension supply is 12V or 24V DC source.
Electrical switch includes audion Q30 and field effect transistor Q31.
Field effect transistor Q31 is P-channel metal-oxide-semiconductor.
Beneficial effects of the present invention:
Technical scheme contains low-tension supply and high-low pressure is powered translation function circuit, high-low pressure is powered and is turned
Change functional circuit and can monitor the duty of high pressure main power source in real time, lose normally at vehicle electric hydraulic power-assist steering system
Moment low-tension supply can be rapidly switched to, to ensure that vehicle is unlikely to turn to out of control when high pressure main power source is powered.
Accompanying drawing explanation
Fig. 1 is that a kind of of the present invention has the high-low pressure Electro-Hydraulic Power Steering System schematic diagram for power conversion circuit；
Fig. 2 is the high-low pressure structure principle chart for power conversion circuit of the present invention；
Fig. 3 is operation principle and the package pins schematic diagram of comparator chip LM339.
Detailed description of the invention
Below with reference to accompanying drawing 1-3, highly preferred embodiment of the present invention is described in detail, in order to the technology of the present invention
The understanding of scheme and enforcement.
As shown in Figure 1, a kind of of the present invention has the high-low pressure Electro-Hydraulic Power Steering System for power conversion circuit,
For the assisted diversion of vehicle, it mainly includes that high pressure main power source DC1, low-tension supply DC2, high-low pressure are powered translation function circuit
And controller.Wherein, high pressure main power source DC1 is simultaneously connected with high-low pressure and powers translation function circuit and controller, low-tension supply DC2
Through high-low pressure power translation function circuit connect controller.Such as figure, controller is for driving the motor of assist steering system.
In the present invention, high pressure main power source can select the DC source in the range of 100V to 500V, and low-tension supply is then selected
Select the DC source of 12V or 24V.
Under normal circumstances, vehicle is configured with simultaneously high pressure main power source (such as direct current 100 volts or 500 volts) and low-tension supply
(such as direct current 12 volts or 24 volts), is mainly powered to controller by high pressure main power source at ordinary times, controller drives motor, to protect
Demonstrate,prove the properly functioning of steering.
When high pressure main power source loses, high-low pressure translation function circuit of powering can real-time monitor high pressure main power source
Lose, and moment is immediately switched to low-tension supply passage, and low tension is boosted to merit voltage levvl before this, by this height electricity
Pressure continues to power to controller, controller drive motor, properly functioning to maintain system to continue.
Accompanying drawing 2 shows that the high-low pressure of the present invention is powered the structure principle chart of translation function circuit, as shown in the figure: high-low pressure
Power supply translation function circuit, mainly include comparator chip LM339, audion Q30, field effect transistor Q31, DC boosting module,
Resistance R30-37, diode D1 and D2.Concrete wiring diagram is as shown in Figure 2.High pressure main power source is through divider resistance R33 and R34 even
Being connected to the inverting input of comparator chip LM339, R30-32, R35, R37, Q30 are as the peripheral electricity of comparator chip LM339
Road.Wherein, as the divider resistance of comparator chip LM339 in-phase input end after R35, R30, R31 series connection.Comparator chip
The in-phase input end of LM339 is connected between R30 and R31.R31 can select adjustable resistance, and it is not connected with comparator chip
One end ground connection of LM339.
Field effect transistor Q31 is connected between comparator chip LM339 and DC boosting module.Resistance R36 is as protection electricity
Resistance is connected between the grid of Q31 and source electrode.In the present embodiment, field effect transistor Q31 can select P-channel metal-oxide-semiconductor.
Low-tension supply connects controller through DC boosting module, namely low-tension supply is powered translation function circuit through high-low pressure
In DC boosting module connect controller.
Diode D30 is connected to the outfan of high pressure main power source, and diode D31 is connected to the output of DC boosting module
End.Diode D30 is connected in parallel with diode D31.
The outfan of LM339 is equivalent to a crystal triode not connecing collector resistance, and outfan is to just in use
Power vd D typically must meet a resistance R37 (referred to as pull-up resistor, select 3-15K).The pull-up resistor of the different resistance of choosing can affect defeated
Go out to hold the value of high potential.Because when output transistor ends, its collector voltage is substantially dependent on pull-up resistor
Value with load.
LM339 comparator has two inputs and an outfan.Two inputs one are referred to as in-phase input end, use
"+", represents, another is referred to as inverting input, represents by "-".With make comparisons two voltage time, any one input adds one
Individual fixed voltage makes reference voltage (also referred to as threshold level, it may select any point of LM339 input common-mode range), another
End adds a signal voltage to be compared.When "+" terminal voltage higher than "-" end time, outlet tube end, be equivalent to outfan open circuit.
When "-" terminal voltage higher than "+" end time, outlet tube is saturated, be equivalent to output termination electronegative potential.Two input terminal voltage difference are more than
10mV ensures that output can reliably be transformed into another kind of state from a kind of state, therefore, LM339 is used in Testing of Feeble Signals
It is more satisfactory etc. occasion.
As it is shown on figure 3, equipped with four independent voltage comparators inside LM339 integrated package, be similar to gain nonadjustable
Operational amplifier.The feature of this voltage comparator is: 1) offset voltage is little, and representative value is 2mV；2) supply voltage wide ranges, single
Power supply is 2-36V, and dual-supply voltage is ± 1V-± 18V；3) internal resistance to comparing signal source limits wider；4) common mode range is very
Greatly, it is 0～(Ucc-1.5V) Vo；5) differential input voltage range is relatively big, big to being equal to supply voltage；6) outfan current potential
Can select flexibly and easily.It addition, the outfan of each comparator allows the use that links together.
The parameter of LM339 with IR2339, ANI339, SF339 etc. is basically identical, is used interchangeably in the present invention.
Below in conjunction with accompanying drawing and aforesaid explanation, work process and the operation principle of the present invention are described in detail.
Under normal circumstances, (such as direct current 100 volts or 500 volts with 380 volts is herein vehicle simultaneously high pressure main power source
Example illustrates) and low-tension supply (such as direct current 12 volts or 24 volts illustrates herein as a example by 12 volts), main by high pressure main power source at ordinary times
Power to controller, controller drive motor, to ensure that system is properly functioning.
When high pressure main power source is normal, negative input end (4 foot) the voltage U4 in the a-road-through road of comparator chip LM339 is more than
Positive input terminal (5 foot) voltage U5, U5=2.5V, export U2 (2 foot) low level, and DC boosting module does not input, and does not works, this
Time low-tension supply through Q31 disconnect, high voltage power supply below by from high pressure main power source provide.
When high pressure main power source loses, negative input end (4 foot) the voltage U4 in the a-road-through road of comparator chip LM339 is less than
Positive input terminal (5 foot) voltage U5, U5=2.5V, export U2 (2 foot) high level, the now saturated pressure drop made on resistance R35 of Q30
It is reduced close to be zero, improves the voltage of U5 further, make U4 further less than U5, it is ensured that the stability of power supply switching control；
At this moment U2 high level drives and opens Q31 connection low-tension supply supply DC boosting module, DC boosting module output voltage moment
It is raised through diode D31 to export to high voltage power supply passage, now owing to the voltage of high pressure main power source is less than DC boosting module
Output voltage, the two reliably exports high-tension electricity to high voltage power supply passage at the sys node of diode D30 Yu D31 composition
Source, it is ensured that system properly functioning.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.Should not be considered as limiting involved claim by any reference in claim.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only wraps
Containing an independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should
Description can also be formed those skilled in the art through appropriately combined as an entirety, the technical scheme in each embodiment
May be appreciated other embodiments.
Claims (6)
1. there is a high-low pressure Electro-Hydraulic Power Steering System for power conversion circuit, for the assisted diversion system of vehicle
System, it is characterised in that:
Mainly include that high pressure main power source, low-tension supply, high-low pressure are powered translation function circuit and controller；
Wherein, high pressure main power source is simultaneously connected with high-low pressure and powers translation function circuit and controller；
Described high-low pressure translation function circuit of powering includes DC boosting module, and low-tension supply connects through DC boosting module and controls
Device；
Controller is for driving the motor of assist steering system.
Electro-Hydraulic Power Steering System the most according to claim 1, it is characterised in that:
High-low pressure is powered translation function main circuit comparator to be included chip, electronic switching tube, DC boosting module, some resistance
With some diodes.
Electro-Hydraulic Power Steering System the most according to claim 2, it is characterised in that:
Low-tension supply connects controller through power DC boosting module in translation function circuit of high-low pressure.
Electro-Hydraulic Power Steering System the most according to claim 1, it is characterised in that:
High pressure main power source is 100V to 500V DC source, and low-tension supply is 12V or 24V DC source.
Electro-Hydraulic Power Steering System the most according to claim 2, it is characterised in that:
Described electrical switch includes audion Q30 and field effect transistor Q31.
Electro-Hydraulic Power Steering System the most according to claim 5, it is characterised in that:
Field effect transistor Q31 is P-channel metal-oxide-semiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610799458.7A CN106274757B (en) | 2016-08-31 | 2016-08-31 | Electric control hydraulic power-assisted steering system with high-low voltage power supply conversion circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610799458.7A CN106274757B (en) | 2016-08-31 | 2016-08-31 | Electric control hydraulic power-assisted steering system with high-low voltage power supply conversion circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106274757A true CN106274757A (en) | 2017-01-04 |
| CN106274757B CN106274757B (en) | 2021-02-19 |
Family
ID=57710284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610799458.7A Active CN106274757B (en) | 2016-08-31 | 2016-08-31 | Electric control hydraulic power-assisted steering system with high-low voltage power supply conversion circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN106274757B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110356465A (en) * | 2018-04-10 | 2019-10-22 | 郑州宇通客车股份有限公司 | A kind of double source steering boost system control method and system |
| WO2023184737A1 (en) * | 2022-04-02 | 2023-10-05 | 全兴精工集团有限公司 | Dual-source motor pump |
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| CN1700578A (en) * | 2004-05-21 | 2005-11-23 | 株式会社电装 | Electronic control unit, electric power-assisted steering device and transmission ratio-variable steering unit |
| JP2007151251A (en) * | 2005-11-25 | 2007-06-14 | Jtekt Corp | Motor control device and electric power steering device |
| JP2008179182A (en) * | 2007-01-23 | 2008-08-07 | Toyota Motor Corp | Power supply control device and method therefor |
| JP2014172491A (en) * | 2013-03-08 | 2014-09-22 | Jtekt Corp | Electric power steering device |
| CN104426432A (en) * | 2013-08-19 | 2015-03-18 | 苏州市智盈电子技术有限公司 | Control circuit for DC vehicle-mounted compressor |
| CN105346593A (en) * | 2015-12-04 | 2016-02-24 | 广西玉柴机器股份有限公司 | Electric power steering system |
| CN105584520A (en) * | 2014-11-17 | 2016-05-18 | 比亚迪股份有限公司 | Steering power system of electric vehicle and control method for steering power system |
| CN205997827U (en) * | 2016-08-31 | 2017-03-08 | 安徽纳威光机电科技发展有限公司 | A kind of have the Electro-Hydraulic Power Steering System that high-low pressure supplies power conversion circuit |
-
2016
- 2016-08-31 CN CN201610799458.7A patent/CN106274757B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1700578A (en) * | 2004-05-21 | 2005-11-23 | 株式会社电装 | Electronic control unit, electric power-assisted steering device and transmission ratio-variable steering unit |
| JP2007151251A (en) * | 2005-11-25 | 2007-06-14 | Jtekt Corp | Motor control device and electric power steering device |
| JP2008179182A (en) * | 2007-01-23 | 2008-08-07 | Toyota Motor Corp | Power supply control device and method therefor |
| JP2014172491A (en) * | 2013-03-08 | 2014-09-22 | Jtekt Corp | Electric power steering device |
| CN104426432A (en) * | 2013-08-19 | 2015-03-18 | 苏州市智盈电子技术有限公司 | Control circuit for DC vehicle-mounted compressor |
| CN105584520A (en) * | 2014-11-17 | 2016-05-18 | 比亚迪股份有限公司 | Steering power system of electric vehicle and control method for steering power system |
| CN105346593A (en) * | 2015-12-04 | 2016-02-24 | 广西玉柴机器股份有限公司 | Electric power steering system |
| CN205997827U (en) * | 2016-08-31 | 2017-03-08 | 安徽纳威光机电科技发展有限公司 | A kind of have the Electro-Hydraulic Power Steering System that high-low pressure supplies power conversion circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110356465A (en) * | 2018-04-10 | 2019-10-22 | 郑州宇通客车股份有限公司 | A kind of double source steering boost system control method and system |
| WO2023184737A1 (en) * | 2022-04-02 | 2023-10-05 | 全兴精工集团有限公司 | Dual-source motor pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106274757B (en) | 2021-02-19 |
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Address after: 230031 Room 525, High-tech Group Building, 626 Huangshan Road, Hefei High-tech Zone, Anhui Province Applicant after: ANHUI LEGUAN INTELLIGENT TECHNOLOGY Co.,Ltd. Address before: 230031 Room 525, High-tech Group Building, 626 Huangshan Road, Hefei High-tech Zone, Anhui Province Applicant before: ANHUI NAWEIGUANG MECHANICAL AND ELECTRICAL TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Denomination of invention: An electronically controlled hydraulic power steering system with high and low voltage power supply conversion circuit Effective date of registration: 20210407 Granted publication date: 20210219 Pledgee: Anhui Zhongying Shengda Financing Guarantee Co.,Ltd. Pledgor: ANHUI LEGUAN INTELLIGENT TECHNOLOGY Co.,Ltd. Registration number: Y2021340000004 |
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Date of cancellation: 20220401 Granted publication date: 20210219 Pledgee: Anhui Zhongying Shengda Financing Guarantee Co.,Ltd. Pledgor: ANHUI LEGUAN INTELLIGENT TECHNOLOGY CO.,LTD. Registration number: Y2021340000004 |
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Denomination of invention: An electronically controlled hydraulic power steering system with high and low voltage power supply conversion circuit Effective date of registration: 20220424 Granted publication date: 20210219 Pledgee: Anhui Zhongying Shengda Financing Guarantee Co.,Ltd. Pledgor: ANHUI LEGUAN INTELLIGENT TECHNOLOGY CO.,LTD. Registration number: Y2022340000004 |
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Date of cancellation: 20230508 Granted publication date: 20210219 Pledgee: Anhui Zhongying Shengda Financing Guarantee Co.,Ltd. Pledgor: ANHUI LEGUAN INTELLIGENT TECHNOLOGY CO.,LTD. Registration number: Y2022340000004 |