CN105068531A - Test system of auxiliary brake controller and test method of test system - Google Patents
Test system of auxiliary brake controller and test method of test system Download PDFInfo
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- CN105068531A CN105068531A CN201510562828.0A CN201510562828A CN105068531A CN 105068531 A CN105068531 A CN 105068531A CN 201510562828 A CN201510562828 A CN 201510562828A CN 105068531 A CN105068531 A CN 105068531A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
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- Automation & Control Theory (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention relates to a test system of an auxiliary brake controller and a test method of the test system. The test system includes an electronic type controller, a data acquisition unit, a signal input unit, a signal output unit, an alternating-current power source, a charger, a storage battery and a power source switch; the output end of the alternating-current power source is connected with the input end of the charger; the output end of the charger is connected to the input end of the storage battery; the output end of the storage battery is connected with the input end of the data acquisition unit through the power source switch; the output end of the data acquisition unit is connected with the input end of the electronic type controller; the output end of the signal input unit is connected with the input end of the electronic type controller; and the output end of the electronic type controller is connected with the input end of the signal output unit. With the test system provided by the above technical schemes of the invention adopted, defects in the prior art can be eliminated, and the actual working environment of the electronic type controller can be simulated, and the working state of the electronic type controller can be tested in a simulation environment, and the accuracy and reliability of test results can be guaranteed.
Description
Technical field
The present invention relates to Bus Technology field, be specifically related to a kind of test macro and method of testing thereof of auxiliary brake control.
Background technology
EBA worked before foundation brakes work, was the complemental brake system of vehicle deceleration.Because EBA can not only improve security and the comfortableness of vehicle, the serviceable life of primary brake system can also be extended, reduce vehicle use cost; Therefore, more and more applied on the automobiles such as all kinds of passenger vehicle, heavily card before EBA.The control mode of EBA has mechanical type to control at present and electronic type controls two kinds.Mechanical type controls to be made up of relay box and controller, and shared installing space is comparatively large onboard, and both must be with the use of, and cannot realize the defencive function such as overcurrent, excess temperature.By contrast, electronic type controls to only include an electronic controller, and the high power valve of electronic controller inside instead of mechanical relay, not only saves the installing space of car load, can also realize the defencive functions such as overcurrent, overvoltage, excess temperature.
The test of current EBA controller is mostly fairly simple, and test parameter is incomplete.Common test mode is: adopt stabilized voltage supply to power to electronic controller, judge the serviceability of electronic controller according to the instruction of working station indicator.Except the instruction of working station indicator, the load added by this test mode is also the low-power load of Vehicular lamp bulb.Although existing test mode can verify the duty of electronic controller to a certain extent, but owing to cannot EBA be arranged on automobile, under actual braking condition, the duty of EBA is tested, therefore, the test result of existing test mode is inaccurate, cannot reflect the time of day of electronic controller under actual braking condition.
Summary of the invention
The object of the present invention is to provide a kind of test macro and method of testing thereof of auxiliary brake control, this test macro and method of testing can solve the deficiencies in the prior art, the actual working environment of analog electrical minor controller, and in this simulated environment, the duty of electronic controller is tested, accuracy and the reliability of test result can be ensured.
For achieving the above object, present invention employs following technical scheme:
A test macro for auxiliary brake control, comprises electronic controller, also comprises data acquisition unit, signal input unit, signal output unit, AC power, charging set, accumulator and power switch.The input end of the output termination charging set of described AC power, the input end of the output termination accumulator of charging set, the output terminal of accumulator connects the input end of data acquisition unit through power switch, the input end of the output termination electronic controller of data acquisition unit.The input end of the output termination electronic controller of described signal input unit, the input end of the output termination signal output unit of electronic controller.
Further, described data acquisition unit comprises voltage-current sensor, power analyzer and PC.Described voltage-current sensor, its input end connects the output terminal of accumulator through power switch, and its output terminal connects the input end of electronic controller and the input end of power analyzer respectively; The input end of the output termination PC of described power analyzer.
Further, described signal input unit comprises speed signal generator, ABS signal generator and several pushbutton switches; Described ABS signal generator adopts relay, and its normally closed contact connects the input end of electronic controller, the performance loop of its coil access ABS system.
Further, described signal output unit comprises the working station indicator that several high-power resistance loads and several and high-power resistance load adapt.Described high-power resistance load comprises the high power valve and resistance that are made up of field effect transistor and diode.Described field effect transistor, its grid connects the output terminal of electronic controller, and its drain electrode connects the positive pole of accumulator, its source electrode resistance grounded.Described diode, its anode connects the source electrode of field effect transistor, and its negative electrode connects the drain electrode of field effect transistor.Described working station indicator adopts light emitting diode, and the anode of this light emitting diode connects the source electrode of field effect transistor, plus earth.
The invention still further relates to a kind of method of testing of test macro of above-mentioned auxiliary brake control, the method comprises the following steps:
(1) by AC power incoming transport electrical network, make charging set enter duty, charging set charges a battery.
(2) closed electrical source switch, powers on to electronic controller.
(3) speed signal generator is set, makes speed signal generator output amplitude and frequency all meet the analogue speed signal of test request.
(4) ABS signal generator is set, makes electronic controller meet condition of work.
(5) press the pushbutton switch of corresponding gear, electronic controller connects the high-power resistance load of corresponding gear and the working station indicator of corresponding gear, and high-power resistance load is started working, and the working station indicator of corresponding gear is lit.
(6) magnitude of voltage collected and current value are sent to power analyzer by voltage-current sensor, and power analyzer is sampled to this magnitude of voltage and current value, and the data after sampling are sent to PC.
(7) the electric current and voltage situation of change during work of PC recorded electronic formula controller, and this electric current and voltage situation of change is depicted as curve map.
(8) curve map of the electric current and voltage situation of change when electronic controller drawn according to PC works, binding isotherm value, judges whether electronic controller is operated in rated condition.
From above technical scheme, the actual working environment of the present invention to EBA is simulated, the and whether indicating status of the working current of auxiliary brake control under different gear, battery tension situation of change and working station indicator is accurately detected, thus the full test of the reliability realized when auxiliary brake control works and stability.The present invention detects the Parameters variation situation when data obtained can reflect EBA real work in real time, exactly.
Accompanying drawing explanation
Fig. 1 is the system chart of the test macro of auxiliary brake control;
Fig. 2 is the circuit theory diagrams of electronic controller, signal input unit and signal output unit.
Wherein:
1, electronic controller, 2, data acquisition unit, 3, signal input unit, 4, signal output unit, 5, AC power, 6, charging set, 7, accumulator, 8, power switch.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described:
The test macro of a kind of auxiliary brake control as Figure 1-Figure 2, comprises electronic controller 1, data acquisition unit 2, signal input unit 3, signal output unit 4, AC power 5, charging set 6, accumulator 7 and power switch 8.The input end of the output termination charging set 6 of described AC power 5, the input end of the output termination accumulator 7 of charging set 6, the output terminal of accumulator 7 connects the input end of data acquisition unit 2 through power switch 8, the input end of the output termination electronic controller 1 of data acquisition unit 2.The input end of the output termination electronic controller 1 of described signal input unit 3, the input end of the output termination signal output unit 4 of electronic controller 1.
Further, described data acquisition unit 2 comprises voltage-current sensor 21, power analyzer 22 and PC 23.Described voltage-current sensor 21, its input end connects the output terminal of accumulator 7 through power switch 8, and its output terminal connects the input end of electronic controller 1 and the input end of power analyzer 22 respectively; The input end of the output termination PC 23 of described power analyzer 22.Described voltage-current sensor, for gathering operating voltage and the working current of electronic controller.Gathering the operating voltage of electronic controller, is the magnitude of voltage in order to detect accumulator.Gather the working current of electronic controller, be in order within ensureing that the high-power switch tube of electronic controller inside is operated in current limit on the one hand, be in order to when high-power resistance load changes on the other hand, the situation of change of electric current is observed.Data after sampling processing for sampling to the magnitude of voltage of voltage-current sensor collection and current value, and are sent to PC by described power analyzer.Described PC, voltage when working for adopting corresponding software recorded electronic formula controller and curent change situation, and preserve in the form of a graph.Described corresponding software is that CONCERTO-ADVANCEDTESTBED tests the poster processing soft.This software is the software carried in AVL test macro, and when test macro is different, the software adopted can be different, as long as the voltage and current Plotting data that software can realize each test duration to gather becomes the function of curve map.Can find out that each test duration and voltage, current value obtain corresponding relation in the plot clearly, namely the horizontal ordinate of this curve map is time (second), and ordinate is magnitude of voltage (V) or current value (A).
Further, described signal input unit comprises speed signal generator, ABS signal generator and several pushbutton switches.
Further, described signal output unit comprises the working station indicator that several high-power resistance loads and several and high-power resistance load adapt.Described pushbutton switch, high-power resistance load and working station indicator one_to_one corresponding, each group pushbutton switch, high-power resistance load and the corresponding gear of working station indicator.Press the button switch, the corresponding gear of electronic controller is connected, and corresponding high-power resistance load is started working, and corresponding working station indicator indicates the duty of this electronic controller under this gear.High-power resistance load, for simulating the resistance value of the corresponding gear of auxiliary brake.When electronic controller by pushbutton switch control different gear switch on power time, data acquisition unit just can obtain the real-time change curve of the voltage and current of electronic controller under different gear.
As shown in Figure 2, described ABS signal generator adopts relay, and its normally closed contact connects the input end of electronic controller, the performance loop of its coil access ABS system.When the closing of contact of this relay, button signal could be connected by electronic controller, otherwise button signal can not form loop.This local explanation is: during ABS work, relay coil is energising just, with regard to power-off when ABS does not work.ABS system belongs to another one system, and the present invention, by arranging ABS signal generator, guarantees that ABS system and electronic controller can not work simultaneously.Described high-power resistance load comprises the high power valve and resistance that are made up of field effect transistor and diode.Described field effect transistor, its grid connects the output terminal of electronic controller, and its drain electrode connects the positive pole of accumulator, its source electrode resistance grounded.Described diode, its anode connects the source electrode of field effect transistor, and its negative electrode connects the drain electrode of field effect transistor.Described working station indicator adopts light emitting diode, and the anode of this light emitting diode connects the source electrode of field effect transistor, plus earth.When pressing the button switch k1, CPU in electronic controller collects this button signal, electronic controller transmits control signal and high power valve M1 is connected, 1 grade of resistance R1 of now high-power resistance load connects and starts working, 1 grade of pilot lamp L1 is lit simultaneously, indicate 1 grade of resistance in running order, other gears in like manner.
The invention still further relates to a kind of method of testing of test macro of above-mentioned auxiliary brake control, the method comprises the following steps:
(1) by AC power incoming transport electrical network, make charging set enter duty, charging set charges a battery.
(2) closed electrical source switch, powers on to electronic controller.
(3) speed signal generator is set, makes speed signal generator output amplitude and frequency all meet the analogue speed signal of test request.Described speed signal generator, for providing analogue speed signal for electronic controller, meets the rate request of electronic controller under actual braking condition.A precondition of starting working due to electronic controller is that the speed of a motor vehicle is greater than certain restriction, therefore, the present invention is by arranging speed signal generator, speed signal generator is made to export a square-wave signal to electronic controller, and the amplitude of this square-wave signal is greater than 4V, frequency-adjustable, to meet the condition of work of electronic controller.
(4) ABS signal generator is set, makes electronic controller meet condition of work.This condition of work refers to that ABS system and EBA can not work simultaneously.Because ABS system and EBA can not work simultaneously, therefore, a relay as shown in Figure 2 is set between ABS system and EBA.When ABS system does not work, relay is in normally off, and electronic controller can normally work.When ABS system works, the coil electricity of relay, makes relay be in normally open, even if now pushbutton switch is pressed, the CPU in electronic controller does not collect this button signal yet.
(5) press the pushbutton switch of corresponding gear, electronic controller connects the high-power resistance load of corresponding gear and the working station indicator of corresponding gear, and high-power resistance load is started working, and the working station indicator of corresponding gear is lit.
(6) magnitude of voltage collected and current value are sent to power analyzer by voltage-current sensor, and power analyzer is sampled to this magnitude of voltage and current value, and the data after sampling are sent to PC.
(7) the electric current and voltage situation of change during work of PC recorded electronic formula controller, and this electric current and voltage situation of change is depicted as curve map.
(8) curve map of the electric current and voltage situation of change when electronic controller drawn according to PC works, binding isotherm value, judges whether electronic controller is operated in rated condition.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (5)
1. a test macro for auxiliary brake control, comprises electronic controller, it is characterized in that: also comprise data acquisition unit, signal input unit, signal output unit, AC power, charging set, accumulator and power switch; The input end of the output termination charging set of described AC power, the input end of the output termination accumulator of charging set, the output terminal of accumulator connects the input end of data acquisition unit through power switch, the input end of the output termination electronic controller of data acquisition unit; The input end of the output termination electronic controller of described signal input unit, the input end of the output termination signal output unit of electronic controller.
2. the test macro of a kind of auxiliary brake control according to claim 1, is characterized in that: described data acquisition unit comprises voltage-current sensor, power analyzer and PC; Described voltage-current sensor, its input end connects the output terminal of accumulator through power switch, and its output terminal connects the input end of electronic controller and the input end of power analyzer respectively; The input end of the output termination PC of described power analyzer.
3. the test macro of a kind of auxiliary brake control according to claim 1, is characterized in that: described signal input unit comprises speed signal generator, ABS signal generator and several pushbutton switches; Described ABS signal generator adopts relay, and its normally closed contact connects the input end of electronic controller, the performance loop of its coil access ABS system.
4. the test macro of a kind of auxiliary brake control according to claim 1, is characterized in that: described signal output unit comprises the working station indicator that several high-power resistance loads and several and high-power resistance load adapt; Described high-power resistance load comprises the high power valve and resistance that are made up of field effect transistor and diode; Described field effect transistor, its grid connects the output terminal of electronic controller, and its drain electrode connects the positive pole of accumulator, its source electrode resistance grounded; Described diode, its anode connects the source electrode of field effect transistor, and its negative electrode connects the drain electrode of field effect transistor; Described working station indicator adopts light emitting diode, and the anode of this light emitting diode connects the source electrode of field effect transistor, plus earth.
5. the method for testing of the test macro of the auxiliary brake control according to claim 1 ~ 4 any one, is characterized in that: the method comprises the following steps:
(1) by AC power incoming transport electrical network, make charging set enter duty, charging set charges a battery;
(2) closed electrical source switch, powers on to electronic controller;
(3) speed signal generator is set, makes speed signal generator output amplitude and frequency all meet the analogue speed signal of test request;
(4) ABS signal generator is set, makes electronic controller meet condition of work;
(5) press the pushbutton switch of corresponding gear, electronic controller connects the high-power resistance load of corresponding gear and the working station indicator of corresponding gear, and high-power resistance load is started working, and the working station indicator of corresponding gear is lit;
(6) magnitude of voltage collected and current value are sent to power analyzer by voltage-current sensor, and power analyzer is sampled to this magnitude of voltage and current value, and the data after sampling are sent to PC;
(7) the electric current and voltage situation of change during work of PC recorded electronic formula controller, and this electric current and voltage situation of change is depicted as curve map;
(8) curve map of the electric current and voltage situation of change when electronic controller drawn according to PC works, binding isotherm value, judges whether electronic controller is operated in rated condition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510562828.0A CN105068531A (en) | 2015-09-07 | 2015-09-07 | Test system of auxiliary brake controller and test method of test system |
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| CN201510562828.0A CN105068531A (en) | 2015-09-07 | 2015-09-07 | Test system of auxiliary brake controller and test method of test system |
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| CN106292626A (en) * | 2016-08-04 | 2017-01-04 | 中国汽车工程研究院股份有限公司 | Data acquisition unit and method for new-energy automobile test evaluation |
| CN108829077A (en) * | 2018-04-12 | 2018-11-16 | 武汉理工大学 | A kind of air pressure abs controller detection method and device |
| CN113325828A (en) * | 2021-06-09 | 2021-08-31 | 中国第一汽车股份有限公司 | Parking lock controller test method, device and system and storage medium |
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Application publication date: 20151118 |