CN207923456U - A kind of electric-control motor sync detection device - Google Patents
A kind of electric-control motor sync detection device Download PDFInfo
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- CN207923456U CN207923456U CN201820474041.8U CN201820474041U CN207923456U CN 207923456 U CN207923456 U CN 207923456U CN 201820474041 U CN201820474041 U CN 201820474041U CN 207923456 U CN207923456 U CN 207923456U
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Abstract
The utility model is related to a kind of electric-control motor sync detection devices；The detection device includes engine electric-controlled unit ECU, is set to crankshaft sensor and camshaft-signal sensor, the indicator light for showing synchronous regime for detecting rotating speed on engine；Wherein, the engine electric-controlled unit ECU includes processor and the memory being electrically connected respectively with processor, eTPU modules；The eTPU modules are connected separately crankshaft sensor and camshaft-signal sensor, and the memory is stored with each tooth standard position data of camshaft.The device can greatly improve the efficiency and accuracy of engine synchronization detection, have positive technical meaning.
Description
Technical field
The utility model is related to a kind of electric-control motor sync detection devices, belong to electric-control motor technical field.
Background technology
To meet the economy and dynamic property of engine and vehicle, engine has become using advanced electronic control unit
Gesture.In electric-control motor, how to fast implement synchronous identification is the control stress point of engine, and realizes distributive value, oil spout
The necessary condition that moment, oil spout number accurately control.
Currently, electric-control motor, which mostly uses greatly crankshaft signal and camshaft signal, carries out position detection and management, and by this
The key of the main means that two signals are measured as engine location, synchronous detection is how rapidly and accurately to determine bent axle
With the phase relation of camshaft, and bent axle and camshaft signal can be handled in real time.Traditional engine synchronization detection means is basic
The problems such as upper relied on by tools such as oscillographs manually observes waveform, such method is not high there are inefficient and accuracy.
Therefore, it designs that a kind of detection efficiency is high, the more accurate electric-control motor sync detection device of test result, is ability
Field technique personnel's urgent problem to be solved.
Invention content
To solve the problems, such as that efficiency and accuracy existing for electric-control motor sync detection device in the prior art are relatively low,
The utility model provides a kind of electric-control motor sync detection device.
The utility model uses following technical proposals：
A kind of electric-control motor sync detection device, which is characterized in that including：Engine electric-controlled unit ECU, it is set to hair
Crankshaft sensor and camshaft-signal sensor, the indicator light for showing synchronous regime in motivation for detecting rotating speed；
Wherein, the engine electric-controlled unit ECU includes processor and the memory being electrically connected respectively with processor, eTPU
Module；The eTPU modules are equipped with eTPU1, eTPU2 two and are connected separately the logical of crankshaft sensor and camshaft-signal sensor
Road is simultaneously handled the signal of acquisition；The memory is stored with each tooth standard position data of camshaft.
Preferably, the ECU is NXP MPC5644A microcontrollers using ECU possessed by this vehicle；
The crankshaft sensor and camshaft-signal sensor are magneto-electric or hall sensor；
The indicator light is former vehicle instrument board alarm indicator.
The utility model has the advantage of：
By using the ECU with enhanced time processing unit eTPU modules, bent axle and camshaft signal are carried out real
When acquisition process, make position synchronize detection accuracy and efficiency it is higher, can be widely used for engine location detection, examine hair
Motivation synchronization timing.
Description of the drawings
Attached drawing 1 is the utility model embodiment structural schematic block diagram；
Attached drawing 2 is the bent axle and camshaft signal feature and synchronized relation figure of the utility model embodiment；
Attached drawing 3 is the synchronization testing process block diagram of the utility model embodiment.
Specific implementation mode
The utility model is further illustrated with reference to the accompanying drawings and examples.
As shown in Figure 1, the present embodiment is a kind of electric-control motor sync detection device, with vehicle installation, detection is shown in real time,
It is powered by vehicle power supply, and starts and close with vehicle circuitry；Including：Engine electric-controlled unit ECU, it is set on engine and uses
In the crankshaft sensor and camshaft-signal sensor, the indicator light for showing synchronous regime of detection rotating speed；
Wherein, the engine electric-controlled unit ECU includes processor and the memory being electrically connected respectively with processor, eTPU
Module；The eTPU modules are equipped with eTPU1, eTPU2 two and are connected separately the logical of crankshaft sensor and camshaft-signal sensor
Road is simultaneously handled the signal of acquisition；The memory is stored with each tooth standard position data of camshaft.
In the present embodiment, ECU is NXP MPC5644A microcontrollers, which is band using ECU possessed by this vehicle
There is enhanced time processing unit（ETPU modules）32 automotive grade microcontrollers of NXP, eTPU modules connect and handle bent axle
And camshaft signal.
Crankshaft sensor and camshaft-signal sensor are magneto-electric or hall sensor.
The indicator light is instruction device, using former vehicle instrument board alarm indicator in the present embodiment, with connection in
ECU is simultaneously lighted by ECU controls, utilizes the interlock circuit of former vehicle.
By the enhanced time processing unit eTPU collecting crankshafts and camshaft signal of ECU, bent axle hypodontia and convex is determined
The multiple tooth relative seat feature of wheel shaft, each tooth standard position data of camshaft and each tooth position of actually detected camshaft of ECU storages
It sets data to be compared, the phase relation inspection of signal is synchronized with this, when the mark of the ECU position data detected and storage
When quasi- position data is not inconsistent, then judge that the synchronizing signal phase relation of engine is wrong, it is aobvious for failure that ECU lights indicator light
Show.
Crankshaft sensor and camshaft-signal sensor signal that ECU is acquired by eTPU modules are the 0-5V of microcontroller identification
Standard block signal, signal waveform are as shown in Figure 2.
The crankshaft signal tooth is uniformly distributed on crankshaft signal disk and carries hypodontia feature, and the signal number of teeth is embodied as
60-2 teeth, i.e. crankshaft signal are per reincarnation at 58 physics tooth signals, 2 hypodontia signals；The camshaft signal tooth is uniformly distributed
In on camshaft signal disk and with multiple tooth feature, camshaft signal tooth is embodied as 6+1 teeth, i.e., camshaft signal is per reincarnation
At 6 equably physics tooth signal, 1 multiple tooth signal.Two-way sensor signal phase relationship can be implemented as shown in Fig. 2, such as
The signal failing edge of first physics tooth is defined as 0 ° of bent axle after bent axle hypodontia in Fig. 2, and each signal teeth of camshaft is defined as：Tooth 1,
Multiple tooth, tooth 2, tooth 3, tooth 4, tooth 5, tooth 6, A1, A2 and the A7 identified in Fig. 2 are the angle value of opposite bent axle.
As follows, following tooth standard angle data are set for the synchronous normal data for being stored in ECU memories differentiated
Error window is equipped with to prevent signal interference or signal panels machining accuracy error：
0 ° of setting of bent axle：The signal failing edge of first tooth after crankshaft signal hypodontia；
1 angle of camshaft tooth：Tooth 1 is with respect to the angle of 0 ° of bent axle, i.e. A1；
The multiple tooth angle of camshaft：The angle of multiple tooth opposite 0 ° of bent axle, i.e. A1+A7；
2 angle of camshaft tooth：Tooth 2 is with respect to the angle of 0 ° of bent axle, i.e. A1+A2；
3 angle of camshaft tooth：Tooth 3 is with respect to the angle of 0 ° of bent axle, i.e. A1+2*A2；
4 angle of camshaft tooth：Tooth 4 is with respect to the angle of 0 ° of bent axle, i.e. A1+3*A2；
5 angle of camshaft tooth：Tooth 5 is with respect to the angle of 0 ° of bent axle, i.e. A1+4*A2；
6 angle of camshaft tooth：Tooth 6 is with respect to the angle of 0 ° of bent axle, i.e. A1+5*A2；
Synchronous detection implementing procedure is as shown in Figure 3.Specifically, the triggering mode setting of the eTPU modules acquisition signal of ECU
For failing edge, after detecting useful signal, the time counter TCR1 and angle counter TCR2 of eTPU are started counting up.
Step 1, eTPU1 Air conduct measurements obtain crank time counter TCR1 to bent axle useful signal failing edge（It can be referred to as
For bent axle TCR1）With crankshaft angles counter TCR2（It may be simply referred to as bent axle TCR2 or hypodontia TCR2）Value, and carry out hypodontia and sentence
It is disconnected.After eTPU1 determines hypodontia, it is assumed that at this time first signal failing edge after hypodontia be 0 ° of bent axle i.e. update bent axle TCR2=
0, and in follow-up signal along real-time update bent axle TCR2 values；
Step 2, eTPU2 Air conduct measurements obtain camshaft time counter TCR1 to camshaft useful signal failing edge（It can
Referred to as camshaft TCR1）With camshaft angle counter TCR2（It may be simply referred to as camshaft TCR2 or multiple tooth TCR2）Value, and
Carry out multiple tooth judgement.After determining that camshaft is multiple tooth, the value of camshaft TCR2 is obtained；
Step 3, whether the value of camshaft TCR2 multiple tooth in ECU comparison steps 2 is equal to the standard that memory stores in ECU
Multiple tooth angle value A1+A7,0 ° of bent axle assumes correctly in step 1 if consistent；As inconsistent, 0 ° of need of bent axle for assuming in step 1
It corrects, then it is the new value obtained by former bent axle TCR2-360 to correct bent axle TCR2 values；
Step 4, according to the bent axle TCR2 values determined in step 3, the camshaft TCR2 that camshaft tooth 1 arrives tooth 6 is detected successively
Value, and be compared with each tooth angular standard data stored in memory, to realize the synchronous detection of engine.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use this practicality new
Type.A variety of modifications of embodiment will be apparent to those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present utility model, not given
The part presented with partial enlargement is described in detail, is the prior art, herein without repeating.Therefore, the utility model will not
It is intended to be limited to the embodiments shown herein, and is to fit to consistent with principles disclosed herein and feature widest
Range.
Claims (2)
1. a kind of electric-control motor sync detection device, which is characterized in that including：
Engine electric-controlled unit ECU, crankshaft sensor and camshaft-signal sensor, use for detecting rotating speed on engine are set to
In the indicator light of display synchronous regime；
Wherein, the engine electric-controlled unit ECU includes processor and the memory being electrically connected respectively with processor, eTPU moulds
Block；The eTPU modules are equipped with two channels for being connected separately crankshaft sensor and camshaft-signal sensor eTPU1, eTPU2
And the signal of acquisition is handled；The memory is stored with each tooth standard position data of camshaft.
2. electric-control motor sync detection device according to claim 1, which is characterized in that the ECU is NXP
MPC5644A microcontrollers；
The crankshaft sensor and camshaft-signal sensor are magneto-electric or hall sensor；
The indicator light is former vehicle instrument board alarm indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820474041.8U CN207923456U (en) | 2018-04-04 | 2018-04-04 | A kind of electric-control motor sync detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820474041.8U CN207923456U (en) | 2018-04-04 | 2018-04-04 | A kind of electric-control motor sync detection device |
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| Publication Number | Publication Date |
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| CN207923456U true CN207923456U (en) | 2018-09-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444722A (en) * | 2018-04-04 | 2018-08-24 | 中国重汽集团济南动力有限公司 | A kind of electric-control motor sync detection device and method |
| CN111120128A (en) * | 2019-12-30 | 2020-05-08 | 潍柴动力股份有限公司 | Engine synchronization detection method and device |
-
2018
- 2018-04-04 CN CN201820474041.8U patent/CN207923456U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444722A (en) * | 2018-04-04 | 2018-08-24 | 中国重汽集团济南动力有限公司 | A kind of electric-control motor sync detection device and method |
| CN108444722B (en) * | 2018-04-04 | 2024-03-29 | 中国重汽集团济南动力有限公司 | Synchronous detection device and method for electric control engine |
| CN111120128A (en) * | 2019-12-30 | 2020-05-08 | 潍柴动力股份有限公司 | Engine synchronization detection method and device |
| CN111120128B (en) * | 2019-12-30 | 2022-08-05 | 潍柴动力股份有限公司 | Engine synchronization detection method and device |
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