CN205997827U - A kind of have the Electro-Hydraulic Power Steering System that high-low pressure supplies power conversion circuit - Google Patents
A kind of have the Electro-Hydraulic Power Steering System that high-low pressure supplies power conversion circuit Download PDFInfo
- Publication number
- CN205997827U CN205997827U CN201621034852.3U CN201621034852U CN205997827U CN 205997827 U CN205997827 U CN 205997827U CN 201621034852 U CN201621034852 U CN 201621034852U CN 205997827 U CN205997827 U CN 205997827U
- Authority
- CN
- China
- Prior art keywords
- low
- low pressure
- steering system
- translation function
- function circuit
- 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.)
- Active
Links
Abstract
This utility model provide a kind of there is the Electro-Hydraulic Power Steering System that high-low pressure supplies power conversion circuit, for the assisted diversion of vehicle, main include 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.The technical solution of the utility model includes high pressure main power source and low-tension supply and high-low pressure is powered translation function circuit, high-low pressure translation function circuit of powering is capable of the working condition of real-time monitoring high pressure main power source, lose when normal high pressure main power source is powered and moment can be rapidly switched to low-tension supply in vehicle electric hydraulic power-assist steering system, out of control to ensure that vehicle is unlikely to turn to.
Description
Technical field
This utility model belongs to motor control technologies field, is related to vehicle electric hydraulic power-assist steering system, specifically
A kind of have the Electro-Hydraulic Power Steering System that high-low pressure supplies 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
Losing normal high pressure main power source, being easily caused Vehicular turn out of control, consequently, it is possible to causing the accident.
Utility model content
The purpose of this utility model is to overcome vehicle electric hydraulic power-assist steering system in prior art to lose suddenly
The potential safety hazard that high pressure main power source power supply station brings, there is provided a kind of have the electric-controlled hydraulic power-assisted that high-low pressure supplies power conversion circuit
Steering, when vehicle electric hydraulic power-assist steering system loses normal high pressure main power source and powers, can be switched fast moment
There is provided temporary power to 12 volts or 24 volts low-tension supplies of direct current, out of control to ensure that vehicle is unlikely to turn to.
The technical solution of the utility model is as follows：
A kind of have the Electro-Hydraulic Power Steering System that high-low pressure supplies power conversion circuit, for the assisted diversion of vehicle,
Main include 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
When 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 used for driving the motor of assist steering system.
High-low pressure translation function circuit of powering mainly includes comparator chip, electronic switching tube, DC boosting module, some
Resistance and some diodes.
Low-tension supply connects controller through the DC boosting module that high-low pressure is powered in translation function circuit.
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.
The beneficial effects of the utility model：
The technical solution of the utility model contains low-tension supply and high-low pressure is powered translation function circuit, high-low pressure supplies
Electric translation function circuit is capable of the working condition of real-time monitoring high pressure main power source, loses in vehicle electric hydraulic power-assist steering system
Normal high pressure main power source can be rapidly switched to low-tension supply when powering moment, out of control to ensure that vehicle is unlikely to turn to.
Brief description
Fig. 1 be of the present utility model a kind of have high-low pressure supply power conversion circuit Electro-Hydraulic Power Steering System illustrate
Figure；
Fig. 2 is the structure principle chart that high-low pressure of the present utility model supplies power conversion circuit；
Fig. 3 is operation principle and the package pins schematic diagram of comparator chip LM339.
Specific embodiment
Below with reference to accompanying drawing 1-3, most preferred embodiment of the present utility model is described in detail, in order to this practicality
The understanding of new technique scheme and enforcement.
As shown in Figure 1, of the present utility model a kind of have high-low pressure supply power conversion circuit electric-controlled hydraulic power-assisted steering
System, for the assisted diversion of vehicle, it mainly includes high pressure main power source DC1, low-tension supply DC2, high-low pressure are powered conversion work(
Can 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 pressure
Power supply DC2 through high-low pressure power translation function circuit connect controller.As figure, controller is for driving the electricity of assist steering system
Motivation.
In this utility model, high pressure main power source can select the DC source in the range of 100V to 500V, low-tension supply
Then select the DC source of 12V or 24V.
Under normal circumstances, vehicle is configured with simultaneously high pressure main power source (such as 100 volts or 500 volts of direct current) and low-tension supply
(such as 12 volts or 24 volts of direct current), is mainly powered from high pressure main power source to controller at ordinary times, by controller drive motor, to protect
The normal operation of card 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 work(voltage levvl before this, by this height electricity
Pressure continues to power to controller, by controller drive motor, to maintain system to continue normal operation.
Accompanying drawing 2 shows that high-low pressure of the present utility model is powered the structure principle chart of translation function circuit, as shown in the figure：High
Low-voltage power supply translation function circuit, main inclusion comparator chip LM339, audion Q30, field effect transistor Q31, DC boosting mould
Block, 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
Connect to the inverting input of comparator chip LM339, R30-32, R35, R37, Q30 are as the periphery of comparator chip LM339
Circuit.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 when using, outfan is to just
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 referred to as in-phase input end, uses
"+", represents, another is referred to as inverting input, is represented with "-".With make comparisons two voltage when, any one input adds one
Individual fixed voltage makes reference voltage (also referred to as threshold level, it may be selected any point of LM339 input common-mode range), another
End plus a signal voltage to be compared.When "+" terminal voltage be higher than "-" end when, outlet tube end, be equivalent to outfan open circuit.
When "-" terminal voltage be higher than "+" end when, outlet tube saturation, 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 shown in figure 3, equipped with four independent voltage comparators inside LM339 integrated package, nonadjustable similar to gain
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) wider to the internal resistance restriction comparing signal source；4) common mode range is very
Greatly, it is 0～(Ucc-1.5V) Vo；5) differential input voltage range is larger, and big arriving can be equal to supply voltage；6) export terminal potential
Can flexibly and easily select.In addition, the outfan of each comparator allows the use that links together.
LM339 is basically identical with the parameter of IR2339, ANI339, SF339 etc., is used interchangeably in this utility model.
Below in conjunction with accompanying drawing and aforesaid explanation, work process of the present utility model and operation principle are explained in detail
State.
Under normal circumstances, (such as 100 volts or 500 volts of direct current with 380 volts is herein vehicle simultaneously high pressure main power source
Example explanation) and low-tension supply (such as 12 volts or 24 volts of direct current taking 12 volts as a example illustrates herein), at ordinary times mainly by high pressure main power source
Power to controller, by controller drive motor, to ensure that system normally runs.
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, DC boosting module does not input, and does not work, this
When low-tension supply be to disconnect through Q31, high voltage power supply below is provided by from high pressure main power source.
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, and now Q30 saturation makes the pressure drop on resistance R35
It is reduced close to be zero, improves the voltage of U5 further, make U4 be less than U5 further 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 because 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 and D31 composition
Source is it is ensured that the normal operation of system.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, this practicality can be realized in other specific forms new
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, this practicality is new
The scope of type is limited by claims rather than described above, it is intended that the containing of equivalency that will fall in claim
All changes in justice and scope are included in this utility model.Any reference in claim should not be considered as limiting
Involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment only wraps
Containing an independent technical scheme, only for clarity, those skilled in the art should for this narrating mode of description
Using description as an entirety, the technical scheme in each embodiment can also form those skilled in the art through appropriately combined
Understandable other embodiment.
Claims (6)
1. a kind of have the Electro-Hydraulic Power Steering System that high-low pressure supplies power conversion circuit, for the assisted diversion system of vehicle
System it is characterised in that：
Main include 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 used for driving the motor of assist steering system.
2. Electro-Hydraulic Power Steering System according to claim 1 it is characterised in that：
High-low pressure translation function circuit of powering mainly includes comparator chip, electronic switching tube, DC boosting module, some resistance
With some diodes.
3. Electro-Hydraulic Power Steering System according to claim 2 it is characterised in that：
Low-tension supply connects controller through the DC boosting module that high-low pressure is powered in translation function circuit.
4. Electro-Hydraulic Power Steering System 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.
5. Electro-Hydraulic Power Steering System according to claim 2 it is characterised in that：
Described electrical switch includes audion Q30 and field effect transistor Q31.
6. Electro-Hydraulic Power Steering System 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 |
|---|---|---|---|
| CN201621034852.3U CN205997827U (en) | 2016-08-31 | 2016-08-31 | A kind of have the Electro-Hydraulic Power Steering System that high-low pressure supplies power conversion circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621034852.3U CN205997827U (en) | 2016-08-31 | 2016-08-31 | A kind of have the Electro-Hydraulic Power Steering System that high-low pressure supplies power conversion circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205997827U true CN205997827U (en) | 2017-03-08 |
Family
ID=58192815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621034852.3U Active CN205997827U (en) | 2016-08-31 | 2016-08-31 | A kind of have the Electro-Hydraulic Power Steering System that high-low pressure supplies power conversion circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205997827U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274757A (en) * | 2016-08-31 | 2017-01-04 | 安徽纳威光机电科技发展有限公司 | A kind of have the high-low pressure Electro-Hydraulic Power Steering System for power conversion circuit |
| CN107472355A (en) * | 2017-07-06 | 2017-12-15 | 苏州汇川联合动力系统有限公司 | A kind of electric machine control system and method |
-
2016
- 2016-08-31 CN CN201621034852.3U patent/CN205997827U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274757A (en) * | 2016-08-31 | 2017-01-04 | 安徽纳威光机电科技发展有限公司 | A kind of have the high-low pressure Electro-Hydraulic Power Steering System for power conversion circuit |
| CN107472355A (en) * | 2017-07-06 | 2017-12-15 | 苏州汇川联合动力系统有限公司 | A kind of electric machine control system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8499885B1 (en) | Motor drive apparatus | |
| CN105978099B (en) | A kind of electric car low-tension supply management system | |
| CN105270182B (en) | Charging method of the new-energy automobile to bus high pressure | |
| DE102009057587B4 (en) | Reverse polarity protection for Mosfets | |
| CN105346594A (en) | Automotive dual-source low-voltage electric power-assisted steering system | |
| DE102013100165A1 (en) | motor drive | |
| CN205997827U (en) | A kind of have the Electro-Hydraulic Power Steering System that high-low pressure supplies power conversion circuit | |
| DE102014114122A1 (en) | Rotating electrical machine fixed to a vehicle | |
| CN105680417A (en) | Active short circuit control circuit and control method | |
| CN106274757A (en) | A kind of have the high-low pressure Electro-Hydraulic Power Steering System for power conversion circuit | |
| CN206004402U (en) | A kind of high-low pressure of Electro-Hydraulic Power Steering System is powered translation function circuit | |
| CN107659220A (en) | Dual power supply electrohydraulic steering assist motor driver | |
| CN108022793A (en) | Drive circuit for the operation of relay | |
| CN205186269U (en) | Automobile -used couple of source low pressure electric power steering system | |
| CN106329704A (en) | High-low voltage power supply switching functional circuit of electrically controlled hydraulic power steering system | |
| CN207251507U (en) | Active short circuit current and electric machine controller | |
| CN202183058U (en) | Multifunctional automobile voltage regulator capable of realizing two functions by single external module | |
| CN214850971U (en) | Power supply circuit, on-vehicle panoramic camera and car | |
| CN105337596A (en) | Motor system IGBT switching circuit thereof | |
| CN211377571U (en) | Protection circuit of vehicle-mounted direct current converter | |
| CN210007689U (en) | Hot plug circuit based on field effect transistor | |
| CN107093886A (en) | It is a kind of to be embedded in solar powered network from the voltage security power supply circuit become in device | |
| CN206344713U (en) | A kind of electric vehicle motor controller charge/discharge control circuit | |
| CN208559492U (en) | A kind of automobile-used double source emergency electric boosting steering system and new-energy automobile | |
| WO2020062209A1 (en) | Automobile charging pile control module |
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 |
Address after: 230031 Anhui high tech Zone, Mount Huangshan Road, No. 626 high tech group building, room 525, No. Patentee after: Anhui champion Intelligent Technology Co., Ltd. Address before: 230031 Anhui high tech Zone, Mount Huangshan Road, No. 626 high tech group building, room 525, No. Patentee before: ANHUI NAWEIGUANG MECHANICAL AND ELECTRICAL TECHNOLOGY DEVELOPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |