CN205022675U - Electronic power -assisted steering system in dual intensity source and [electric] motor coach - Google Patents
Electronic power -assisted steering system in dual intensity source and [electric] motor coach Download PDFInfo
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- CN205022675U CN205022675U CN201520638841.5U CN201520638841U CN205022675U CN 205022675 U CN205022675 U CN 205022675U CN 201520638841 U CN201520638841 U CN 201520638841U CN 205022675 U CN205022675 U CN 205022675U
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Abstract
The utility model relates to an electronic power -assisted steering system in dual intensity source and [electric] motor coach, dual intensity source EHPS, including high voltage power supply, high -pressure steering controller with turn to the motor, high voltage power supply connects through the drive of high -pressure steering controller and turns to the motor, dual intensity source EHPS is still including emergent steering controller, emergent steering controller drive is connected turn to the motor. High voltage power supply and high -pressure steering controller assist energy part as main energy part, emergency power source with emergent steering controller conduct, divide when main ministry of energy and break down, then start assistance energy part, assist energy part and as the emergent energy use of EHPS, guarantee that whole car has power -assisted steering to when avoiding main power -assisted steering part sudden failure perhaps to become invalid, car load no power -assisted steering's under the inertia or the downhill path condition peril situation.
Description
Technical field
The utility model relates to a kind of Dual-energy source electric hydraulic power-assisted steering system, control method and electrobus.
Background technology
Electric hydraulic power-assisted steering system nearly all used by electrobus, especially pure electric coach, fuel electric car passenger vehicle and deep hybrid power passenger vehicle etc., is called for short EHPS.
Independently EHPS is powered to the steering controller of correspondence by car load high tension supply, drives EHPS by steering controller.Car load high tension supply, i.e. high-voltage energy storage device, generally served as by super capacitor or high pressure lithium cell.
At present, the conventional oil path in EHPS and mechanics are quite ripe, but turn to high pressure controller reliability still not high.If when car load high tension supply, steering controller and relevant control part break down, car load loses power steering instantaneously, there is the hidden danger of traffic accident in driver's operation bearing circle difficulty.Such as, car load is under inertia or descending situation, and EHPS fault causes without power steering, will cause dangerous situation.
Utility model content
The purpose of this utility model is to provide a kind of Dual-energy source electric hydraulic power-assisted steering system, the security hidden trouble that energy cataphoretic failure or inefficacy in order to solve EHPS in prior art bring.Meanwhile, the utility model additionally provides and adopts the electrobus of this steering swivel system (comprising pure electronic and hybrid power passenger car).
For achieving the above object, scheme of the present utility model comprises:
Dual-energy source EHPS, comprises high tension supply, high pressure steering controller and steer motor, and high tension supply is driven by high pressure steering controller and connects steer motor, and Dual-energy source EHPS also comprises emergent steering controller, and emergent steering controller drives and connects described steer motor.
Further, described emergent steering controller is powered by emergency source of electrical power, and emergency source of electrical power is low potential source, and described emergent steering controller is the low pressure steering controller of band boost function.
Further, described emergent steering controller is powered by described high tension supply.
The utility model additionally provides a kind of electrobus, comprises Dual-energy source EHPS, and Dual-energy source EHPS comprises high tension supply, high pressure steering controller and steer motor, and high tension supply is driven by high pressure steering controller and connects steer motor; Dual-energy source EHPS also comprises emergent steering controller, and emergent steering controller drives and connects described steer motor.
Further, described emergent steering controller is powered by emergency source of electrical power, and emergency source of electrical power is low potential source, and described emergent steering controller is the low pressure steering controller of band boost function.
Further, described emergent steering controller is powered by described high tension supply.
High tension supply and high pressure steering controller are as main source of energy part, and emergency source of electrical power and emergent steering controller, as auxiliary energy part, when main source of energy part breaks down, then start auxiliary energy part, use, guarantee that car load has power steering as EHPS Emergency power source.Thus avoid main power steering part cataphoretic failure or lost efficacy time, car load under inertia or descending situation without the dangerous situation of power steering.Certainly, do not break down in high tension supply, only when high pressure steering controller fault, emergent steering controller also can from high tension supply power taking.
Applied power source can adopt other on-board high-voltage power supply or low potential source, when adopting low potential source, should increase booster circuit or select the low pressure steering controller with boost function.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model EHPS embodiment 1;
Fig. 2 is the constructional drawing of the utility model EHPS embodiment 2;
Fig. 3 is another embodiment constructional drawing of the utility model EHPS;
Fig. 4 is the schematic diagram to be controlled of the utility model EHPS embodiment 2.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in more detail.
EHPS embodiment 1
As shown in Figure 1, for partial reliability difference problems such as car load high pressure steering controllers, the present embodiment proposes a kind of Dual-energy source EHPS.This Dual-energy source EHPS can be used in the occasion such as electronlmobil, electrobus, comprises pure electronic and motor vehicle driven by mixed power.
Dual-energy source EHPS, comprises high tension supply, high pressure steering controller and steer motor M, and high tension supply is driven by high pressure steering controller and connects steer motor M.Here high tension supply refers to on-board high-voltage power supply, is generally super capacitor or high-tension battery, and the voltage class provided and steer motor adapt.High pressure steering controller also belongs to prior art, does not do too much describing at this.The feature of Dual-energy source EHPS is, adds an emergency source of electrical power and emergent steering controller, and emergency source of electrical power is driven by emergent steering controller and connects steer motor M.
Increasing emergency source of electrical power and emergent steering controller, is a kind of settling mode proposed for the poor reliability problem of high tension supply and high pressure steering controller.Emergency source of electrical power can be other on-board high-voltage power supply, and emergent steering controller also adopts high pressure steering controller.
Even, if do not broken down in high tension supply, only when high pressure steering controller fault, emergent steering controller also can from current high tension supply power taking, as shown in Figure 3.
Emergency source of electrical power also can adopt vehicle-mounted low potential source, specifically introduces in EHPS embodiment 2.
EHPS embodiment 2
The EHPS of the Dual-energy source of the present embodiment refers to, adopts car load high pressure and low pressure to provide energy to EHPS respectively, drives the steer motor of EHPS, for deflector provides flow and pressure, think that car load provides power steering.This Dual-energy source electric hydraulic power-assisted steering system take high pressure as main source of energy, and low-voltage energy source is the auxiliary energy, i.e. Emergency power source.
As shown in Figure 2, main source of energy part comprises high tension supply 1, and high tension supply 1 connects steer motor 7 by high pressure steering controller 2, and auxiliary Department of Energy (DOE) divides and comprises low potential source 3, and low potential source 3 connects steer motor 7 by low pressure steering controller 4.Concrete, in order to easy-to-connect, bus duct 6 can be set and be connected steer motor for high pressure steering controller 2 with low pressure steering controller 4.In Fig. 2,5 is entire car controller, and 8 is power steerig pump, and 9 is petrol storage tank; 10 is flow sensor; 11 is deflector; 12 is angle deflector, steering column and bearing circle etc.; 13 is steering track rod and the mechanical part connecting propons.
Low potential source 3 can adopt 24V storage battery.In the present embodiment, low pressure steering controller 4 is with the difference of high pressure steering controller 2, not only needs to provide driving, also needs to boost.Concrete, booster circuit can be provided with between low potential source 3, or adopt the electronic switching circuit with boost function, as controlled DC/AC or DC/DC device.Some steer motor need high pressure AC, and what have needs high pressure DC, and therefore, DC/AC or DC/DC device is used for dissimilar steer motor.
Dual-energy source EHPS control method, comprising: judging main power source, when namely high tension supply and/or high pressure steering controller break down, switches to: be that steer motor is powered by emergency source of electrical power by emergent steering controller.
Concrete, shown in Fig. 2, Fig. 4, when high pressure energy EHPS inefficacy or et out of order, entire car controller receives breakdown signal, these breakdown signals comprise the flow of the power steerig pump 8 measured by flow sensor 10, the electric current obtained by high pressure steering controller, control and communication signal (can also comprise voltage signal etc.).Breakdown signal is carried out early warning at background monitoring system by entire car controller simultaneously, and warning technical personnel takes solution.When main source of energy and drive part recover normal after, high tension supply and high pressure steering controller again for electric powered steering oil pump serves as propulsion source, again for car load provides normal direction of rotation power-assisted, low potential source and low pressure steering controller part also thereupon out of service.Also detect the electric current of low pressure steering controller, control and communication signal while of entire car controller, low pressure steering controller is monitored.
As other embodiments, situation as shown in Figure 3, is judging high tension supply trouble free, and when high pressure steering controller breaks down, emergent steering controller is still powered by high tension supply.
Electrobus embodiment
Electrobus, have employed Dual-energy source EHPS, and this Dual-energy source EHPS is identical with the EHPS in above EHPS embodiment 1 or EHPS embodiment 2, does not repeat them here.
Be presented above the concrete embodiment that the utility model relates to three themes, but the utility model is not limited to described embodiment.Under the thinking that the utility model provides; the mode easily expected to those skilled in the art is adopted to convert the technological means in above-described embodiment, replace, revise; and the effect played utility model object that is substantially identical with the relevant art means in the utility model, that realize is also substantially identical; the technical scheme of such formation is carried out fine setting to above-described embodiment and is formed, and this technical scheme still falls in protection domain of the present utility model.
Claims (6)
1. Dual-energy source EHPS, comprises high tension supply, high pressure steering controller and steer motor, high tension supply is driven by high pressure steering controller and connects steer motor, it is characterized in that, Dual-energy source EHPS also comprises emergent steering controller, and emergent steering controller drives and connects described steer motor.
2. Dual-energy source EHPS according to claim 1, is characterized in that, described emergent steering controller is powered by emergency source of electrical power, and emergency source of electrical power is low potential source, and described emergent steering controller is the low pressure steering controller of band boost function.
3. Dual-energy source EHPS according to claim 1, is characterized in that, described emergent steering controller is powered by described high tension supply.
4. an electrobus, is characterized in that, comprises Dual-energy source EHPS, and Dual-energy source EHPS comprises high tension supply, high pressure steering controller and steer motor, and high tension supply is driven by high pressure steering controller and connects steer motor; Dual-energy source EHPS also comprises emergent steering controller, and emergent steering controller drives and connects described steer motor.
5. electrobus according to claim 4, is characterized in that, described emergent steering controller is powered by emergency source of electrical power, and emergency source of electrical power is low potential source, and described emergent steering controller is the low pressure steering controller of band boost function.
6. electrobus according to claim 4, is characterized in that, described emergent steering controller is powered by described high tension supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520638841.5U CN205022675U (en) | 2015-08-21 | 2015-08-21 | Electronic power -assisted steering system in dual intensity source and [electric] motor coach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520638841.5U CN205022675U (en) | 2015-08-21 | 2015-08-21 | Electronic power -assisted steering system in dual intensity source and [electric] motor coach |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205022675U true CN205022675U (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520638841.5U Expired - Fee Related CN205022675U (en) | 2015-08-21 | 2015-08-21 | Electronic power -assisted steering system in dual intensity source and [electric] motor coach |
Country Status (1)
| Country | Link |
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| CN (1) | CN205022675U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105109546A (en) * | 2015-08-21 | 2015-12-02 | 郑州宇通客车股份有限公司 | Dual-energy-source electric hydraulic power steering system, control method and electric coach |
| CN109987135A (en) * | 2017-12-29 | 2019-07-09 | 陕西重型汽车有限公司 | Steering system for heavy vehicle |
| CN110077457A (en) * | 2018-01-26 | 2019-08-02 | 罗伯特·博世有限公司 | Automobile and method for running automobile |
-
2015
- 2015-08-21 CN CN201520638841.5U patent/CN205022675U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105109546A (en) * | 2015-08-21 | 2015-12-02 | 郑州宇通客车股份有限公司 | Dual-energy-source electric hydraulic power steering system, control method and electric coach |
| CN109987135A (en) * | 2017-12-29 | 2019-07-09 | 陕西重型汽车有限公司 | Steering system for heavy vehicle |
| CN110077457A (en) * | 2018-01-26 | 2019-08-02 | 罗伯特·博世有限公司 | Automobile and method for running automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20190821 |
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| CF01 | Termination of patent right due to non-payment of annual fee |