CN204347607U - Automobile electric power-assisted steering controller hardware online simulation device - Google Patents
Automobile electric power-assisted steering controller hardware online simulation device Download PDFInfo
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- CN204347607U CN204347607U CN201520009978.4U CN201520009978U CN204347607U CN 204347607 U CN204347607 U CN 204347607U CN 201520009978 U CN201520009978 U CN 201520009978U CN 204347607 U CN204347607 U CN 204347607U
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Abstract
Automobile electric power-assisted steering controller hardware online simulation device, host computer is by bus B control PCI board, and PCI board is by bus A to relay array modulating output EPS control signal, and bus D and bus E realizes the control of PCI board to relay array; The EPS control signal being transferred to relay array enters EPS controller by bus C, and EPS controller realizes the control to EPS mechanism assembly by bus F, and feedback signal is transferred to EPS control signal end by bus G.The signal of bus F transmission utilizes current sensor and voltage sensor sampling and is transported to PCI board by bus H and carries out analog to digital conversion, is again transferred to host computer via bus B.This device can carry out functional safety test to automobile electric power-assisted steering controller, also can monitor the output situation of EPS controller simultaneously, effectively raise the development efficiency of automobile electric power-assisted steering controller.
Description
Technical field
The utility model relates to electric power steering field, is specifically related to the online failure simulation device of a kind of electric booster steering controller hardware.
Background technology
Vehicle electric power-assisted steering device is for replacing the energy-conservation of conventional hydraulic power-assisted steering device, environmental protection and can realize intelligentized new automobile steering.Also be hybrid vehicle, electric automobile and there is the steering of new automobile indispensability of Function for Automatic Pilot.Automobile electric power-assisted steering controller is the core component of vehicle electric power-assisted steering device.
Controller is powered by automobile storage battery in the course of the work, and according to carrying out the steering wheel torque of self-controller outside, steering wheel angle, automobile ignition signal, automobile speed signal, rotating speed of automobile engine signal, the position signalling of assist motor, CAN communication signals etc., provide suitable drive current to assist motor, to realize safe and reliable light comfortable turning function.In the research and development and product test of automobile electric power-assisted steering controller, functional safety test is an important content, must carry out fault simulation to the external signal of input control device for this reason, and as signal open circuit, shorted to earth, to power supply short circuit etc.
Usually in testing, general by means of mechanical type change-over switch, as " coupling box ", manufacture measured signal line to disconnect, or respectively with the phenomenon of ground wire or power lead short circuit, when test point is many, especially repeated test is needed, or when needing often to change tested object, this method of testing not only efficiency is low, and is easy to make mistakes.
Therefore, the problems referred to above should be paid attention in the design and use process of the online fault testing apparatus to automobile electric power-assisted steering controller and the problem solved.
Utility model content
For existing problem, the utility model provides automobile electric power-assisted steering controller hardware online failure simulation device, rely on a kind of relay array controlled by robot calculator, without the need to artificial under the direct intervention of signal line, realize the online fault simulation of hardware of automobile electric power-assisted steering controller hyperchannel, multiple faults, improve reliability and the work efficiency of research and development and product test.
Technical solution of the present utility model is: automobile electric power-assisted steering controller hardware online simulation device, comprise relay array, EPS controller, EPS mechanism assembly, PCI board and host computer, described host computer controls described PCI board by bus B, described PCI board to described relay array modulating output EPS control signal by bus A, and is provided with bus D and is connected described PCI board with bus E and described relay array realizes described PCI board to the control of described relay array;
The EPS control signal being transferred to described relay array enters described EPS controller by bus C, described EPS controller realizes the control to described EPS mechanism assembly by bus F, utilize current sensor and voltage sensor to gather the control signal on described bus F and be transported to PCI board by bus H and carry out analog to digital conversion, and be again transferred to host computer via described bus B.
Further improvement of the utility model is: described bus D and bus E can realize EPS control signal be over the ground short circuit, to power supply short circuit and open circuit time situation.
Further improvement of the utility model is: described host computer adopts Labview as control software design.
Further improvement of the utility model is: the EPS control signal of described PCI board to described relay array modulating output comprises engine signal, vehicle speed signal, two-way torque signal and two-way hand-wheel signal.
The online failure simulation device of the utility model automobile electric power-assisted steering controller hardware, this device adopts Labview as PC control software, by bus B control PCI board.Then can modulating output EPS control signal by bus A from PCI board, be mainly vehicle speed signal, engine signal, two-way torque signal, two-way steering wheel angle signal.And PCI board realizes the control to relay array by bus D and bus E, the corresponding Control end of relay array is connected on PCI board by bus D and bus E simultaneously, and PCI board is connected to the control of corresponding port realization to relay array of host computer.When work, send corresponding instruction to PCI board by host computer to control relay array, corresponding relay closes in relay array is connected, thus realizes the short circuit over the ground of corresponding EPS control signal, the state to power supply short circuit and open circuit.Carry out the fault occurred in simulating actual conditions, so that can test controller be made correct judgement and process accordingly.Now various failure message enters EPS controller by bus C again, EPS controller failure judgement information thus make corresponding control strategy and input to EPS mechanism assembly by bus F, and feedback signal is transferred to EPS control signal end by bus G.Utilize current sensor voltage sensor to sample to current of electric simultaneously, and deliver to PCI board by bus H and carry out analog to digital conversion, be then sent to host computer, host computer utilizes Labview software to show the electric current and voltage information gathered, and draws out response curve.
The beneficial effects of the utility model are: the device designed by the utility model can carry out functional safety test to automobile electric power-assisted steering controller, achieve the various fault simulations of EPS control signal, the output situation of EPS controller can also be monitored simultaneously, to test the working condition of EPS controller, facilitate repeated test and change tested object, effectively raising the development efficiency of automobile electric power-assisted steering controller.
Accompanying drawing explanation
Fig. 1 is the concrete structure schematic diagram of the online failure simulation device of the utility model automobile electric power-assisted steering controller hardware.
Embodiment
In order to deepen, to understanding of the present utility model, to be described in further detail the utility model below in conjunction with drawings and Examples, this embodiment, only for explaining the utility model, not forming protection domain of the present utility model and limiting.
As shown in Figure 1, the present embodiment provides automobile electric power-assisted steering controller hardware online failure simulation device, comprise relay array, EPS controller, EPS mechanism assembly, PCI board and host computer, described host computer controls described PCI board by bus B, described PCI board to described relay array modulating output EPS control signal by bus A, and is provided with bus D and is connected described PCI board with bus E and described relay array realizes described PCI board to the control of described relay array; The EPS control signal being transferred to described relay array enters described EPS controller by bus C, described EPS controller realizes the control to described EPS mechanism assembly by bus F, utilize current sensor and voltage sensor to gather the control signal on described bus F and be transported to PCI board by bus H and carry out analog to digital conversion, and be again transferred to host computer via described bus B.Described bus D and bus E can realize EPS control signal be over the ground short circuit, to power supply short circuit and open circuit time situation.Described host computer adopts Labview as control software design.The EPS control signal of described PCI board to described relay array modulating output comprises engine signal, vehicle speed signal, two-way torque signal and two-way hand-wheel signal.
The online failure simulation device of the present embodiment automobile electric power-assisted steering controller hardware, this device adopts Labview as PC control software, by bus B control PCI board.Then can modulating output EPS control signal by bus A from PCI board, be mainly vehicle speed signal, engine signal, two-way torque signal, two-way steering wheel angle signal.And PCI board realizes the control to relay array by bus D and bus E, the corresponding Control end of relay array is connected on PCI board by bus D and bus E simultaneously, and PCI board is connected to the control of corresponding port realization to relay array of host computer.When work, send corresponding instruction to PCI board by host computer to control relay array, corresponding relay closes in relay array is connected, thus realizes the short circuit over the ground of corresponding EPS control signal, the state to power supply short circuit and open circuit.Carry out the fault occurred in simulating actual conditions, so that can test controller be made correct judgement and process accordingly.Now various failure message enters EPS controller by bus C again, EPS controller failure judgement information thus make corresponding control strategy and input to EPS mechanism assembly by bus F.Utilize current sensor voltage sensor to electric moter voltage current sample simultaneously, and deliver to PCI board by bus H and carry out analog to digital conversion, then be sent to host computer, host computer utilizes Labview software to show the electric current and voltage information gathered, and draws out response curve.
The beneficial effect of the present embodiment is: the device designed by the utility model can carry out functional safety test to automobile electric power-assisted steering controller, achieve the various fault simulations of EPS control signal, the output situation of EPS controller can also be monitored simultaneously, to test the working condition of EPS controller, facilitate repeated test and change tested object, effectively raising the development efficiency of automobile electric power-assisted steering controller.
In addition to the above, the utility model can also have other embodiments, does not repeat one by one at this.Every employing is equal to the technical scheme of replacement or equivalent transformation formation, all belongs to the scope that the utility model is claimed.
Claims (4)
1. automobile electric power-assisted steering controller hardware online simulation device, it is characterized in that: comprise relay array, EPS controller, EPS mechanism assembly, PCI board and host computer, described host computer controls described PCI board by bus B, described PCI board to described relay array modulating output EPS control signal by bus A, and is provided with bus D and is connected described PCI board with bus E and described relay array realizes described PCI board to the control of described relay array;
The EPS control signal being transferred to described relay array enters described EPS controller by bus C, described EPS controller realizes the control to described EPS mechanism assembly by bus F, utilize current sensor and voltage sensor to gather the control signal on described bus F and be transported to PCI board by bus H and carry out analog to digital conversion, and be again transferred to host computer via described bus B.
2. automobile electric power-assisted steering controller hardware online simulation device according to claim 1, is characterized in that: described bus D and bus E can realize EPS control signal be over the ground short circuit, to power supply short circuit and open circuit time situation.
3. automobile electric power-assisted steering controller hardware online simulation device according to claim 1, is characterized in that: described host computer adopts Labview as control software design.
4. automobile electric power-assisted steering controller hardware online simulation device according to claim 1, is characterized in that: the EPS control signal of described PCI board to described relay array modulating output comprises engine signal, vehicle speed signal, two-way torque signal and two-way hand-wheel signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520009978.4U CN204347607U (en) | 2015-01-07 | 2015-01-07 | Automobile electric power-assisted steering controller hardware online simulation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520009978.4U CN204347607U (en) | 2015-01-07 | 2015-01-07 | Automobile electric power-assisted steering controller hardware online simulation device |
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| CN204347607U true CN204347607U (en) | 2015-05-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106774284A (en) * | 2017-02-13 | 2017-05-31 | 武汉理工大学 | Automobile EPS controller assist characteristic automatization test systems and method of testing |
| CN111273639A (en) * | 2020-02-26 | 2020-06-12 | 扬州工业职业技术学院 | Fault simulation device and method for automobile electric power steering system |
-
2015
- 2015-01-07 CN CN201520009978.4U patent/CN204347607U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106774284A (en) * | 2017-02-13 | 2017-05-31 | 武汉理工大学 | Automobile EPS controller assist characteristic automatization test systems and method of testing |
| CN111273639A (en) * | 2020-02-26 | 2020-06-12 | 扬州工业职业技术学院 | Fault simulation device and method for automobile electric power steering system |
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