CN207466761U - Double source electric hydraulic power-assisted steering system and vehicle - Google Patents
Double source electric hydraulic power-assisted steering system and vehicle Download PDFInfo
- Publication number
- CN207466761U CN207466761U CN201720855218.4U CN201720855218U CN207466761U CN 207466761 U CN207466761 U CN 207466761U CN 201720855218 U CN201720855218 U CN 201720855218U CN 207466761 U CN207466761 U CN 207466761U
- Authority
- CN
- China
- Prior art keywords
- vehicle
- conversion module
- pressure side
- low
- steering system
- 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
The utility model provides a kind of double source electric hydraulic power-assisted steering system and vehicle, double source electric hydraulic power-assisted steering system includes DC communication conversion module, the steering motor of the exchange side connection vehicle of DC communication conversion module, DC side connects high input voltage interface, and high input voltage interface is used to connect vehicle power battery；DC DC conversion module is further included, for the low-pressure side of DC DC conversion module equipped with for connecting the low pressure, input end mouth of the accumulator of vehicle, high-pressure side connects the DC side of the DC communication conversion module；When the electric voltage exception of high input voltage interface, the low-pressure side of DC DC conversion module takes electricity from low pressure input interface, the DC side for being output to DC communication conversion module from high-pressure side after boosting is powered for steering motor, so as to which solution vehicle when power battery breaks down does not have the problem of power steering.
Description
Technical field
The utility model belongs to technical field of vehicle control, and in particular to a kind of double source electric hydraulic power-assisted steering system and
Vehicle.
Background technology
Electric vehicle, either hybrid vehicle or pure electric vehicle, are designed with high-voltage energy storage unit and low pressure stores
Battery, high-voltage energy storage unit are mainly the power battery of vehicle, are capable of providing higher voltage, for driving vehicle；Low pressure stores
The voltage class that battery is capable of providing is than relatively low, predominantly various controllers of vehicle, car light, the low-voltage devices power supply such as instrument.
DC-AC conversion module and DC-dc conversion module are hybrid vehicle and the common device of pure electric vehicle, wherein
Direct current can be converted to alternating current by DC-AC conversion module, and DC-dc conversion module is equipped with high-pressure side and low pressure
Side can convert the voltage class of direct current.
At present, the steering of electric vehicle is mainly electric hydraulic power-assisted steering system, and power source is mainly vehicle
The high-voltage electricity that power battery provides.But the stability of power battery can not show a candle to the traditional vehicles energy storage equipment such as fuel tank, air accumulator, no
Only there is higher requirement, and high failure rate, poor reliability to waterproof, solar heat protection, resisting cold etc..If vehicle is because of high-tension battery
System failure reason powers off suddenly, and vehicle is due also to inertia is sliding, but electric hydraulic power-assisted steering system is because of no high pressure
Input and it is out of service, for vehicle without power steering, driver cannot easily manipulate vehicle, and vehicle is caused to face and is handed at any time
Interpreter thus wait security hidden troubles.
Utility model content
The purpose of this utility model is to provide a kind of double source electric hydraulic power-assisted steering system and vehicle, for solving
Vehicle is not due to having the problem of power steering when power battery breaks down.
To achieve the above object, technical solution provided by the utility model is：
A kind of double source electric hydraulic power-assisted steering system, including DC-AC conversion module, DC-AC conversion module
Exchange side connection vehicle steering motor, DC side connection high input voltage interface, high input voltage interface moved for connecting vehicle
Power battery；DC-dc conversion module is further included, the low-pressure side of DC-dc conversion module is equipped with the storage for connecting vehicle
The low pressure, input end mouth of battery, high-pressure side connect the DC side of the DC-AC conversion module；
When the electric voltage exception of high input voltage interface, the low-pressure side of DC-dc conversion module takes from low pressure input interface
Electricity is output to the DC side of DC-AC conversion module after boosting from high-pressure side.
Further, the DC-AC conversion module and DC-dc conversion module are integrally disposed.
Further, the DC-dc conversion module is two-way DC-DC conversion module, when high input voltage interface
Voltage when not occurring abnormal, the high-pressure side of DC-dc conversion module takes electricity from the High voltage output interface, defeated to low pressure
Incoming interface exports low-voltage DC, for charging for the accumulator of vehicle.
A kind of vehicle, including entire car controller and double source electric hydraulic power-assisted steering system；The double source electric hydaulic helps
Power steering includes DC-AC conversion module, and the exchange side of DC-AC conversion module connects the steering motor of vehicle,
DC side connects the power battery of vehicle；It is characterized in that, the entire car controller is also associated with DC-dc conversion module,
The accumulator of the low-pressure side connection vehicle of DC-dc conversion module, high-pressure side connects the straight of the DC-AC conversion module
Flow side；
When the power battery of vehicle occurs abnormal, the low-pressure side of DC-dc conversion module takes from the accumulator of vehicle
Electricity is output to the DC side of DC-AC conversion module after boosting from high-pressure side.
Further, the DC-AC conversion module and DC-dc conversion module are integrally disposed.
Further, the vehicle control unit controls of vehicle connect the DC-dc conversion module, control its Working mould
Formula.
Further, the DC-dc conversion module is two-way DC-DC conversion module, when the power electric of vehicle
When pond does not occur abnormal, the high-pressure side of DC-dc conversion module takes electricity from the power battery of vehicle, and low-pressure side is vehicle
Accumulator charges.
The beneficial effects of the utility model are：Technical solution provided by the utility model, in electric hydraulic power-assisted steering
On be additionally arranged DC-dc conversion module, when the power battery of vehicle breaks down, DC-dc conversion module can be from
The low tension battery of vehicle takes electricity, by low pressure electric boost and by after DC-AC conversion inversion, powering for steering motor,
So as to which solution vehicle when power battery breaks down does not have the problem of power steering.
Description of the drawings
Fig. 1 is the structure diagram of double source electric hydraulic power-assisted steering system in vehicle embodiments；
Fig. 2 is the schematic diagram of bidirectional DC-DC converter module in vehicle embodiments；
Fig. 3 is equivalent circuit diagram when bidirectional DC-DC converter module is depressured in vehicle embodiments；
Fig. 4 is equivalent circuit diagram when bidirectional DC-DC converter module is boosted in vehicle embodiments.
Specific embodiment
The purpose of this utility model is to provide a kind of double source electric hydraulic power-assisted steering system and vehicle, for solving
Vehicle is not due to having the problem of power steering when power battery breaks down.
A kind of vehicle, including double source electric hydraulic power-assisted steering system；The double source electric hydraulic power-assisted steering system packet
Include DC-AC conversion module, the steering motor of the exchange side connection vehicle of DC-AC conversion module, DC side connection vehicle
Power battery；Further include DC-dc conversion module, the electric power storage of the low-pressure side connection vehicle of DC-dc conversion module
Pond, high-pressure side connect the DC side of the DC-AC conversion module；
When the power battery of vehicle occurs abnormal, the low-pressure side of DC-dc conversion module takes from the accumulator of vehicle
Electricity is output to the DC side of DC-AC conversion module after boosting from high-pressure side.
The embodiment of the utility model is described further below in conjunction with the accompanying drawings.
Vehicle embodiments：
The present embodiment provides a kind of vehicle, which is the electric vehicle using double source electric hydraulic power-assisted steering system.
The structure diagram of double source electric hydraulic power-assisted steering system as shown in Figure 1, including integrally disposed DC-AC conversion modules and
Bi-directional DC-DC module.The DC side of DC-AC conversion modules is by the power high voltage power supplies of high voltage connector KM2 connection vehicles, i.e.,
The power battery of vehicle, exchange side connect the steering motor of vehicle；The low-pressure side of bidirectional DC-DC converter module passes through low pressure contact
The low tension battery of device KM1 connection vehicles, high-pressure side connect the DC side of DC-AC conversion modules.The entire car controller control of vehicle
System connection lv contactor KM1, high voltage connector KM2, DC-AC conversion module and bidirectional DC-DC converter module.
For the schematic diagram of bidirectional DC-DC converter module as shown in Fig. 2, wherein U2 is low-pressure side, U1 passes through control for high-pressure side
Thyristor T1's and T2 cut-offs, and can increase the voltage of low-pressure side or reduce on high-tension side voltage.
Under normal circumstances, when key is got to ACC grades by vehicle, the lv contactor KM1 coils in vehicle low-voltage electrical apparatus box
Must be electric, normally opened contact KM1 is attracted, and the low-pressure side of bidirectional DC-DC converter module is connect with low tension battery；Continue to get to key
At ON grades, high voltage connector KM2 coils obtain electric, normally opened contact KM2 actuations.
When the power battery of vehicle can work normally, the power battery of vehicle is the DC side of DC-AC conversion modules
Power supply；The DC inverter inputted from DC side is alternating current by DC-AC conversion modules, is exported from exchange side, is turning for vehicle
It powers to motor, steering motor driving Vehicular turn.It charges if necessary to the low tension battery for vehicle, then entire car controller control
Bidirectional DC-DC converter module processed, the high-voltage electricity of vehicle power battery, which is reduced to, to be the low tension of low tension battery charging.It is double
When being depressured to DC-DC conversion modules, the T1 actions of control thyristor, T2 cut-offs, its equivalent circuit is as shown in figure 3, two-way at this time
DC-DC conversion modules are operated in Buck states, its on high-tension side voltage U1 is reduced to the voltage U2 of low-pressure side.
When the power battery of vehicle occurs abnormal, the low-pressure side of bidirectional DC-DC converter module takes electricity from low tension battery,
The low voltage of its low-pressure side is upgraded to high tension voltage by vehicle control unit controls bidirectional DC-DC converter module, becomes mold changing for DC-AC
The DC side power supply of block；The DC inverter inputted from DC side is alternating current by DC-AC conversion modules, is exported from exchange side,
Steering motor for vehicle is powered, steering motor driving Vehicular turn.When bidirectional DC-DC converter module is boosted, thyristor is controlled
T2 is acted, and T1 cut-offs, its equivalent circuit is low by its as shown in figure 4, bidirectional DC-DC converter module is operated in Boost states at this time
The voltage U2 boostings for pressing side are on high-tension side voltage U1.
Double source electric hydraulic power-assisted steering system embodiment：
It is electronic with the double source in above-mentioned vehicle embodiments the present embodiment provides a kind of double source electric hydraulic power-assisted steering system
Hydraulic power-assist steering system is identical, before be discussed in detail, seldom explain here.
Claims (7)
1. a kind of double source electric hydraulic power-assisted steering system, including DC-AC conversion module, DC-AC conversion module
Exchange side connects the steering motor of vehicle, DC side connection high input voltage interface, and high input voltage interface is used to connect vehicle power
Battery；It is characterized in that, further including DC-dc conversion module, the low-pressure side of DC-dc conversion module is equipped with to connect
The low pressure, input end mouth of the accumulator of vehicle, high-pressure side connect the DC side of the DC-AC conversion module.
A kind of 2. double source electric hydraulic power-assisted steering system according to claim 1, which is characterized in that the direct current-friendship
It flows conversion module and DC-dc conversion module is integrally disposed.
A kind of 3. double source electric hydraulic power-assisted steering system according to claim 1, which is characterized in that the direct current-straight
Stream conversion module is two-way DC-DC conversion module, when the voltage of high input voltage interface does not occur abnormal, direct current-straight
Stream conversion module high-pressure side take electricity from the High voltage output interface, to low pressure input interface export low-voltage DC, for for
The accumulator charging of vehicle.
4. a kind of vehicle, including entire car controller；It is characterised in that it includes double source electric hydraulic power-assisted steering system；It is described double
Source electric hydraulic power-assisted steering system includes DC-AC conversion module, the exchange side connection vehicle of DC-AC conversion module
Steering motor, DC side connect vehicle power battery；It is characterized in that, the entire car controller is connected with DC-DC
Conversion module, the accumulator of the low-pressure side connection vehicle of DC-dc conversion module, high-pressure side connects the DC-AC and becomes
Change the mold the DC side of block；
When the power battery of vehicle occurs abnormal, the low-pressure side of DC-dc conversion module takes electricity from the accumulator of vehicle, warp
Cross the DC side for being output to DC-AC conversion module after boosting from high-pressure side.
5. a kind of vehicle according to claim 4, which is characterized in that the DC-AC conversion module and DC-DC
Conversion module is integrally disposed.
6. a kind of vehicle according to claim 4, which is characterized in that the vehicle control unit controls connection of vehicle is described straight
Stream-DC converting module, controls its operating mode.
7. a kind of vehicle according to claim 4, which is characterized in that the DC-dc conversion module for bidirectional, dc-
DC converting module, when the power battery of vehicle does not occur abnormal, the high-pressure side of DC-dc conversion module is from vehicle
Power battery takes electricity, and low-pressure side charges for the accumulator of vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720855218.4U CN207466761U (en) | 2017-07-14 | 2017-07-14 | Double source electric hydraulic power-assisted steering system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720855218.4U CN207466761U (en) | 2017-07-14 | 2017-07-14 | Double source electric hydraulic power-assisted steering system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207466761U true CN207466761U (en) | 2018-06-08 |
Family
ID=62256454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720855218.4U Active CN207466761U (en) | 2017-07-14 | 2017-07-14 | Double source electric hydraulic power-assisted steering system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207466761U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108974117A (en) * | 2018-09-28 | 2018-12-11 | 杭叉集团股份有限公司 | A kind of battery truck |
| CN109249986A (en) * | 2017-07-14 | 2019-01-22 | 郑州宇通客车股份有限公司 | A kind of double source electric hydraulic power-assisted steering system and vehicle |
| CN112208631A (en) * | 2020-10-22 | 2021-01-12 | 北京航天发射技术研究所 | Electro-hydraulic steering system with double oil sources |
-
2017
- 2017-07-14 CN CN201720855218.4U patent/CN207466761U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109249986A (en) * | 2017-07-14 | 2019-01-22 | 郑州宇通客车股份有限公司 | A kind of double source electric hydraulic power-assisted steering system and vehicle |
| CN108974117A (en) * | 2018-09-28 | 2018-12-11 | 杭叉集团股份有限公司 | A kind of battery truck |
| CN112208631A (en) * | 2020-10-22 | 2021-01-12 | 北京航天发射技术研究所 | Electro-hydraulic steering system with double oil sources |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101917026B (en) | Fuel battery-based emergency power generation vehicle | |
| CN207466761U (en) | Double source electric hydraulic power-assisted steering system and vehicle | |
| CN110768243B (en) | Rail transit power supply system | |
| CN206954014U (en) | A kind of bidirectional electric automobile DCDC power-assisted steering electric power systems | |
| CN103328253B (en) | The charging system with two-way charge controller charging for automobile batteries | |
| CN109080464A (en) | Rail vehicle main circuit topological structure and method of supplying power to | |
| CN110311596A (en) | A kind of integrated Double Motor Control device | |
| CN205523717U (en) | Novel electric drive power -assisted steering system | |
| CN105539153B (en) | The dual power supply electric power steering assembly and its control method of pure electric automobile | |
| CN102229327A (en) | Automobile power supply system | |
| TW200713763A (en) | A bidirectional DC/DC converter for fuel cell electric vehicle driving system | |
| CN106004483A (en) | Control method and system of solar-assisted power supply electric vehicle | |
| CN109895759A (en) | A kind of hybrid vehicle and its integrated form controller | |
| CN205951747U (en) | Electric automobile integrated control ware stacked structure | |
| CN109249986A (en) | A kind of double source electric hydraulic power-assisted steering system and vehicle | |
| CN206664682U (en) | A kind of dual power source electric boosting steering system | |
| CN204623170U (en) | A kind of high voltage distribution installation and use the pure electric automobile of this device | |
| CN207292115U (en) | Double source steering control system and the vehicle equipped with the system | |
| CN211405918U (en) | Four-in-one distribution box of hydrogen fuel cell system | |
| CN105711421A (en) | Novel electrically driven steering boosting system | |
| CN209410155U (en) | The double dynamical steering pumping system of double source for new-energy automobile | |
| CN109318980A (en) | A kind of double source steering control system and the vehicle equipped with the system | |
| CN110422058A (en) | Emergency vehicle transmission system | |
| CN106452081B (en) | The spare boosting power supply unit of electric car and system | |
| CN109624792A (en) | A kind of EMU power supply unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co.,Ltd. Address before: 450016 Yutong Industrial Zone, eighteen Li River, Henan, Zhengzhou Patentee before: ZHENGZHOU YUTONG BUS Co.,Ltd. |
|
| CP03 | Change of name, title or address |