CN201749361U - Aging test-bed circuit of engine electronic control unit - Google Patents
Aging test-bed circuit of engine electronic control unit Download PDFInfo
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- CN201749361U CN201749361U CN 201020240626 CN201020240626U CN201749361U CN 201749361 U CN201749361 U CN 201749361U CN 201020240626 CN201020240626 CN 201020240626 CN 201020240626 U CN201020240626 U CN 201020240626U CN 201749361 U CN201749361 U CN 201749361U
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Abstract
The utility model discloses an aging test-bed circuit of an engine electronic control unit, which comprises four parts including a power supply part, a rotating speed signal circuit, an analog transducer signal circuit and a signal output circuit, wherein the four parts are connected. The power supply part includes a first power supply switch, power indicator lights sequentially connected in series behind the first power supply switch, a first LED (light-emitting diode), a 12V and 24V switching dial switch, and a 12V voltage-stabilization switch power supply and a 24V voltage-stabilization switch power supply connected in parallel behind the 12V and 24V switching dial switch; then the two voltage-stabilization switch power supplies are connected in series with a second LED; and the first power supply switch is simultaneously connected in parallel with a temperature setting device, an electronic timer, a temperature setting device and an electronic timer, and then is connected in series with the second power supply switch and a group of heating cords sequentially. After the power supply switches and a trigger switch are turned on, six LEDs representing EGR (exhaust gas recirculation) valve output, high idle speed output, oil return output, preheating indicator light, preheating plug output and correct time output are switched on, and the conditions of ECU electronic parts and components can be judged according to the luminance of each LED. Therefore, the aim of the aging test can be achieved.
Description
Technical field
The utility model relates to a kind of aging test bed circuit of engine electric-controlled unit, belongs to the electrical apparatus control system field.
Background technology
Engine electric-controlled unit ECU is the control core of engine exhaust-gas recirculating system egr system, and the major function of the ECU that produces is EGR control and oil pump timing control system at present, simultaneously, also has functions such as preheating, oil return control, high idle speed, fault diagnosis.
The ageing test apparatus of present ECU (Electrical Control Unit) ECU, selected components and parts function is more but purposes is single, caused very big waste, and also can only once do a spot of several product, bring no small challenge to production in enormous quantities, can not the duty of simulation electronic control module ECU on car load, tach signal is the signal generator of buying, and with two stabilized voltage supplys, sensor signal also all is to adopt that sensor is actual to be recorded, and price is high and put confusion.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of can the duty of simulation electronic control module ECU on car load, and to satisfy the aging test bed circuit of the engine electric-controlled unit that under 4 hours situation of high temperature continuous working, does not break down in the use.
The aging test bed circuit of engine electric-controlled unit of the present utility model adopts following scheme:
A kind of circuit of aging test stand for engine electronic control units is formed by connecting by power unit, tach signal circuit, analog sensor signal circuit, signal output apparatus four parts.
Described power unit comprises: the power light of serial connection, first light emitting diode, 12V and 24V switch toggle switch successively behind first power switch, first power switch, 12V and 24V switch 12V voltage-stabilizing switch power source and 24V voltage-stabilizing switch power source in parallel behind the toggle switch, be connected in series second light emitting diode behind two voltage-stabilizing switch power sources again, also be parallel with temperature setting device, electronic timer behind first power switch simultaneously, temperature setting device, electronic timer back also are serially connected with second source switch and one group of heating wire successively.
Described tach signal circuit comprises: first resistance, second resistance, the 3rd resistance, first diode, second diode, 555 timers, first electric capacity, second electric capacity, first resistance, second resistance, the 3rd resistance is connected in series successively, one end of first diode connects the 7th pin of second resistance and 555 timers, one end of the other end of first diode and second diode, one end of first electric capacity, the 6th pin of 555 timers, the 2nd pin connects, second diode oppositely connects between the 3rd resistance and first electric capacity, one end of second electric capacity is connected with the 5th pin of 555 timers, the 1st pin ground connection of the other end of the other end of second electric capacity and first electric capacity and 555 timers, the 4th pin of 555 timers, one end of the 8th pin and first resistance is connected power unit, and the 3rd pin of 555 timers connects the analog sensor signal circuit.
Described analog sensor signal circuit comprises: ECU (Electrical Control Unit) ECU, and the tenth resistance, the 11 resistance, the 12 resistance, the 3rd power switch, the tenth resistance, the 11 resistance, the 12 resistance, the 3rd power switch are connected respectively with ECU (Electrical Control Unit) ECU.
Described signal output apparatus comprises: from the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance of ECU (Electrical Control Unit) ECU exit parallel connection, and the 3rd light emitting diode, the 4th light emitting diode, the 5th light emitting diode, the 6th light emitting diode, the 7th light emitting diode, the 8th light emitting diode that are connected respectively with above-mentioned resistance.
Beneficial effect: after the utility model assembling is finished, turn on the power switch, behind the trigger switch, make EGR valve output, high idle speed output, oil return output, pre-thermal light, heater plug output, six light emitting diodes of timing output bright according to different programs, can judge the quality of ECU electronic devices and components according to the light and shade of diode, reach aging purpose.Adopt and the supporting banjo of this ECU, make ECU convenient and swift in disassembly process.The aging test bed warning function that in design, also added, green light during operate as normal, as long as appearance such as power supply, temperature are unusual, the bright and flicker of alarm lamp red light, safe and reliable during use.
Description of drawings
Fig. 1 is aging test bed circuit theory diagrams of the present utility model.
Among Fig. 1: the 11-power unit, 22-tach signal circuit, 33-analog sensor signal circuit, the 44-signal output apparatus, K1-first power switch, the L-power light, L1-first light emitting diode, K2-12V and 24V switch toggle switch, the V1-12V Switching Power Supply, the V2-24V Switching Power Supply, L2-second light emitting diode, the T1-temperature setting device, the T2-electronic timer, the K3-heater switch, the K4-trigger switch, L3-the 3rd light emitting diode, L4-the 4th light emitting diode, L5-the 5th light emitting diode, L6-the 6th light emitting diode, L7-the 7th light emitting diode, L8-the 8th light emitting diode, the R-heating wire, R1-first resistance, R2-second resistance, R3-the 3rd resistance, R4-the 4th resistance, R5-the 5th resistance, R6-the 6th resistance, R7-the 7th resistance, R8-the 8th resistance, R9-the 9th resistance, 10-the tenth resistance, 11-the 11 resistance, 12-the 12 resistance, the V3-555 timer, V4-ECU (Electrical Control Unit) ECU, C1-first electric capacity, C2-second electric capacity
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of circuit of aging test stand for engine electronic control units is formed by connecting by power unit 11, tach signal circuit 22, analog sensor signal circuit 33, signal output apparatus 44 4 parts.
Described power unit 11 comprises: the first power switch K1, the power light L that is connected in series successively behind the first power switch K1, the first light emitting diode L1,12V and 24V switch toggle switch K2,12V and 24V switch 12V voltage-stabilizing switch power source V1 and 24V voltage-stabilizing switch power source V2 in parallel behind the toggle switch K2, be connected in series the second light emitting diode L2 behind two voltage-stabilizing switch power sources again, also be parallel with temperature setting device T1 behind the first power switch K1 simultaneously, electronic timer T2, temperature setting device T1, electronic timer T2 back also is serially connected with second source K switch 3 and one group of heating wire R successively.
Described tach signal circuit 22 comprises: first resistance R 1, second resistance R 2, the 3rd resistance R 3, the first diode D1, the second diode D2,555 timer V3, first capacitor C 1, second capacitor C 2, first resistance R 1, second resistance R 2, the 3rd resistance R 3 is connected in series successively, the end of the first diode D1 connects the 7th pin of second resistance R 2 and 555 timer V3, the end of the other end of the first diode D1 and the second diode D2, one end of first capacitor C 1, the 6th pin of 555 timer V3, the 2nd pin connects, the second diode D2 oppositely connects between the 3rd resistance R 3 and first capacitor C 1, one end of second capacitor C 2 is connected with the 5th pin of 555 timer V3, the 1st pin ground connection of the other end of the other end of second capacitor C 2 and first capacitor C 1 and 555 timer V3, the 4th pin of 555 timer V3, the 3rd pin that one end of the 8th pin and first resistance R 1 is connected power unit 11,555 timer V3 connects analog sensor signal circuit 33.
Described analog sensor signal circuit 33 comprises: ECU (Electrical Control Unit) ECUV4, the tenth resistance the 10, the 11 resistance the 11, the 12 resistance 12, the 3rd power switch K4, the tenth resistance the 10, the 11 resistance the 11, the 12 resistance 12, the 3rd power switch K4 are connected respectively with ECU (Electrical Control Unit) ECUV4.
Described signal output apparatus 44 comprises: from the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9 of ECU (Electrical Control Unit) ECUV4 exit parallel connection, and the 3rd light emitting diode L3, the 4th light emitting diode L4, the 5th light emitting diode L5, the 6th light emitting diode L6, the 7th light emitting diode L7, the 8th light emitting diode L8 that are connected respectively with above-mentioned resistance.
Circuit of aging test stand for engine electronic control units, working condition as shown in the figure, open the i.e. first power switch K1 of total power switch, this moment, power light L was bright, the first light emitting diode L1 is that alarm lamp is bright, and green explanation is working properly, and redness is and breaks down, design temperature setting apparatus 8 is 65 degrees centigrade, and setting electronic timer 9 is 4 hours.
Open this agingtable chamber door, the ECU that assembles is packed into successively, close chamber door, 12V and 24V switching waver K2 are allocated to the 12V shelves, this moment, the second light emitting diode L2 was that digital voltmeter shows 12.0V, observe the 3rd light emitting diode L3 on panel this moment, the 4th light emitting diode L4, the 5th light emitting diode L5, the 6th light emitting diode L6, the 7th light emitting diode L7, the 8th light emitting diode L8, they represent the output of EGR valve respectively, high idle speed output, oil return output, pre-thermal light, heater plug output, six working conditions of timing output, whether with write into the ECU theory of program in advance on consistently bright, if inconsistent then the ECU fault is described; Press trigger switch K4, see the 3rd light emitting diode L3 again, the 4th light emitting diode L4, the 5th light emitting diode L5, the 6th light emitting diode L6, the 7th light emitting diode L7, bright whether normal of six light emitting diodes of the 8th light emitting diode L8, press heater switch K3 after all normal, get final product operate as normal, by the time after 4 hours, the heater switch automatic cutout, close 12V and 24V and switch waver K2, again open, the situation of the 3rd light emitting diode L3 to the eight light emitting diode L8 six light emitting diode light on and off this moment should with write the consistent of ECU program in advance, the situation of pressing six light emitting diode light on and off of the 3rd light emitting diode L3 to the eight light emitting diode L8 behind the trigger switch K4 once more with aging before press behind the trigger switch K4 in full accordly, judge that then ECU is qualified after 4 hours aging tests.
This is the classical works circuit of 555 timers, regulate dutycycle by changing first resistance R 1, second resistance R 2 and the 3rd resistance R 3, regulate first capacitor C 1 again and can change output signal frequency, the first light emitting diode L1 and the second light emitting diode L2 keep apart 555 timer charge and discharge processes, at the pin 3 output square-wave signals of 555 timers, simulate tach signal.
Analog sensor signal circuit 33 comprises: the tenth resistance R the 10, the 11 resistance the 11, the 12 resistance 12, trigger switch K4, with the joint of ECU (Electrical Control Unit) ECUV4 to inserting, sensor signal is exactly the voltage signal of equivalence in fact, and power supply divides the magnitude of voltage that falls to pass to ECU (Electrical Control Unit) ECUV4 by the plug that docks with ECU through the tenth electric R10 resistance, the 11 resistance the 11, the 12 resistance 12 backs.
Signal output apparatus 44 comprises: from the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9 of ECU (Electrical Control Unit) ECUV4 exit parallel connection, and the 3rd light emitting diode L3, the 4th light emitting diode L4, the 5th light emitting diode L5, the 6th light emitting diode L6, the 7th light emitting diode L7, the 8th light emitting diode L8 that are connected respectively with above-mentioned resistance.After ECU (Electrical Control Unit) ECU V4 receives the signal of each sensor,, can export different voltage signals, make light emitting diode L3 to L8 light on and off according to the program difference of different manufacturers.
For example, the 3rd light emitting diode L3, the 5th light emitting diode L5 when requiring 12V and 24V to switch toggle switch K2 connection with Dongfeng Chaoyang Diesel Engine Co., Ltd. supporting ECU program, the 6th light emitting diode L6, the 7th light emitting diode L7, the 8th light emitting diode L8 are bright, the 4th light emitting diode L4 goes out, after pressing trigger switch K4, the 3rd light emitting diode L3, the 5th light emitting diode L5, the 8th light emitting diode L8 are bright, and the 4th light emitting diode L4, the 6th light emitting diode L6, the 7th light emitting diode L7 go out;
The 3rd light emitting diode L3, the 5th light emitting diode L5 when requiring 12V and 24V to switch toggle switch K2 connection with Jiangling Motor Co., Ltd. supporting ECU program, the 8th light emitting diode L8 are bright, the 4th light emitting diode L4, the 6th light emitting diode L6, the 7th light emitting diode L7 go out, after pressing trigger switch K4, the 3rd light emitting diode L3, the 4th light emitting diode L4, the 5th light emitting diode L5, the 8th light emitting diode L8 are bright, and the 6th light emitting diode L6, the 7th light emitting diode L7 go out.
Claims (5)
1. a circuit of aging test stand for engine electronic control units is characterized in that: be formed by connecting by power unit (11), tach signal circuit (22), analog sensor signal circuit (33), signal output apparatus (44) four parts.
2. circuit of aging test stand for engine electronic control units according to claim 1, it is characterized in that: described power unit (11) comprising: first power switch (K1), the power light (L) that is connected in series successively behind first power switch (K1), first light emitting diode (L1), 12V and 24V switch toggle switch (K2), 12V switches toggle switch (K2) back 12V voltage-stabilizing switch power source (V1) and 24V voltage-stabilizing switch power source (V2) in parallel with 24V, be connected in series second light emitting diode (L2) behind two voltage-stabilizing switch power sources again, also be parallel with temperature setting device (T1) behind first power switch (K1) simultaneously, electronic timer (T2), temperature setting device (T1), electronic timer (T2) back also is serially connected with second source switch (K3) and one group of heating wire (R) successively.
3. circuit of aging test stand for engine electronic control units according to claim 1, it is characterized in that: described tach signal circuit (22) comprising: first resistance (R1), second resistance (R2), the 3rd resistance (R3), first diode (D1), second diode (D2), 555 timers (V3), first electric capacity (C1), second electric capacity (C2), first resistance (R1), second resistance (R2), the 3rd resistance (R3) is connected in series successively, one end of first diode (D1) connects the 7th pin of second resistance (R2) and 555 timers (V3), one end of the other end of first diode (D1) and second diode (D2), one end of first electric capacity (C1), the 6th pin of 555 timers (V3), the 2nd pin connects, second diode (D2) oppositely connects between the 3rd resistance (R3) and first electric capacity (C1), one end of second electric capacity (C2) is connected with the 5th pin of 555 timers (V3), the 1st pin ground connection of the other end of the other end of second electric capacity (C2) and first electric capacity (C1) and 555 timers (V3), the 4th pin of 555 timers (V3), one end of the 8th pin and first resistance (R1) is connected power unit (11), and the 3rd pin of 555 timers (V3) connects analog sensor signal circuit (33).
4. circuit of aging test stand for engine electronic control units according to claim 1, it is characterized in that: described analog sensor signal circuit (33) comprising: ECU (Electrical Control Unit) ECU (V4), the tenth resistance (10), the 11 resistance (11), the 12 resistance (12), the 3rd power switch (K4), the tenth resistance (10), the 11 resistance (11), the 12 resistance (12), the 3rd power switch (K4) are connected respectively with ECU (Electrical Control Unit) ECU (V4).
5. circuit of aging test stand for engine electronic control units according to claim 1, it is characterized in that: described signal output apparatus (44) comprising: from the 4th resistance (R4) of ECU (Electrical Control Unit) ECU (V4) exit parallel connection, the 5th resistance (R5), the 6th resistance (R6), the 7th resistance (R7), the 8th resistance (R8), the 9th resistance (R9), the 3rd light emitting diode (L3) that is connected respectively with above-mentioned resistance, the 4th light emitting diode (L4), the 5th light emitting diode (L5), the 6th light emitting diode (L6), the 7th light emitting diode (L7), the 8th light emitting diode (L8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020240626 CN201749361U (en) | 2010-06-29 | 2010-06-29 | Aging test-bed circuit of engine electronic control unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020240626 CN201749361U (en) | 2010-06-29 | 2010-06-29 | Aging test-bed circuit of engine electronic control unit |
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| CN201749361U true CN201749361U (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201020240626 Expired - Lifetime CN201749361U (en) | 2010-06-29 | 2010-06-29 | Aging test-bed circuit of engine electronic control unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887270A (en) * | 2010-06-29 | 2010-11-17 | 无锡隆盛科技有限公司 | Circuit of aging test stand for engine electronic control units |
| CN103454089A (en) * | 2013-09-12 | 2013-12-18 | 中国航天科技集团公司第四研究院四0一所 | Device for measuring class of discontinuous parameters of solid rocket engine |
-
2010
- 2010-06-29 CN CN 201020240626 patent/CN201749361U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887270A (en) * | 2010-06-29 | 2010-11-17 | 无锡隆盛科技有限公司 | Circuit of aging test stand for engine electronic control units |
| CN103454089A (en) * | 2013-09-12 | 2013-12-18 | 中国航天科技集团公司第四研究院四0一所 | Device for measuring class of discontinuous parameters of solid rocket engine |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214028 South Road, New District, Jiangsu, Wuxi, No. 231-3 Patentee after: Wuxi Longsheng Technology Co., Ltd. Address before: 214028 South Road, New District, Jiangsu, Wuxi, No. 231-3 Patentee before: Wuxi Longsheng Technology Co., Ltd. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20110216 Effective date of abandoning: 20160615 |
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| C20 | Patent right or utility model deemed to be abandoned or is abandoned |