CN207457829U - A kind of engine controller functional test box - Google Patents
A kind of engine controller functional test box Download PDFInfo
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- CN207457829U CN207457829U CN201721705308.1U CN201721705308U CN207457829U CN 207457829 U CN207457829 U CN 207457829U CN 201721705308 U CN201721705308 U CN 201721705308U CN 207457829 U CN207457829 U CN 207457829U
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Abstract
The utility model discloses a kind of engine controller functional test box, including analogue signal acquisition circuit, switching signal Acquisition Circuit, switching switch, dummy-load circuit, signal output apparatus and signal monitoring circuit, analogue signal acquisition circuit and switching signal Acquisition Circuit acquisition signal are sent to engine controller, switching switch connects engine controller, dummy-load circuit and signal output apparatus respectively, and signal output apparatus is also associated with actuator, and signal monitoring circuit is used to the actual implementing result of actuator being transmitted to engine controller；Switching switch is used for when the actual implementing result actual implementing result of theory corresponding with control signal of actuator is identical, receive the switching signal that engine controller provides, first end is made to be connected with second end, hereafter dummy-load circuit be used for receive engine controller offer to induction signal, and carry out identical the results show according to induction signal, engine bench test need not be carried out to engine, avoid damage engine.
Description
Technical field
The utility model belongs to automotive engine control technical field, and in particular to a kind of engine controller functional test
Box.
Background technology
In recent years, auto industry technical merit rapidly develops, and people are to the dynamic property of automobile, economy, emission performance, safety
Property etc. proposes more strict requirements.
Power resources of the engine as automobile largely determine the dynamic property and emission performance of vehicle.At present,
Most of automobile engine is all controlled by ECU (electronic control unit), and such as GDI (gasoline directly sprays) engine
Higher requirement is then proposed to control system for this kind of engine, it is necessary to better precision, feedback performance and reliability.ECU
Exploitation to be related to software, hardware and control logic etc. all many-sided, it is necessary to test and adjust repeatedly, could realize expected from control
Function processed.And during the test, controller should not be generally directly connected to engine and carry out engine bench test, there are two reasons：
First, bench test step is complicated, initial stage debugging is not easy to, second is that the controller function at initial stage is not perfect, is easy to cause and starts
The damage of machine.It is inconvenient so carrying out test to engine controller.
Utility model content
For technical problem existing in the prior art, the utility model provides a kind of engine controller functional test box.
To achieve these goals, the utility model adopts the following technical solution：
A kind of engine controller functional test box, including analogue signal acquisition circuit, switching signal Acquisition Circuit, switching
Switch, dummy-load circuit, signal output apparatus and signal monitoring circuit, the analogue signal acquisition circuit are used for what will be simulated
Acquisition signal is sent to engine controller, and the switching signal Acquisition Circuit is used to the switching signal collected being sent to institute
Engine controller is stated, so that the engine controller generates control signal according to the acquisition signal and switching signal；Institute
The first end of switching switch is stated for connecting engine controller, second end is connected with dummy-load circuit, and the 3rd end passes through letter
Number output circuit is for connecting actuator, and the dummy-load circuit is for detecting institute when the first end is connected with second end
State whether engine controller exports control signal, the signal output apparatus is used to be connected with the 3rd end in the first end
When the control signal is forwarded to the actuator；
For connecting the actuator, output terminal is used to connect the engine control input terminal of the signal monitoring circuit
Device processed, for the actual implementing result of the actuator to be transmitted to the engine controller；The switching switch is additionally operable to
When the actual implementing result of the actuator actual implementing result of theory corresponding with the control signal is identical, described in reception
The switching signal that engine controller provides, so that the first end is connected with second end, hereafter the dummy-load circuit is used
Identical the results show is carried out to induction signal to induction signal, and according to described in what the reception engine controller provided.
Further, the dummy-load circuit include series connection inductance and first resistor, the first free end respectively with
The anode of power supply and the first light emitting diode connects, and the second free end passes through second resistance and first light emitting diode
Cathode connects.
Further, the signal output apparatus includes fuse, and one end of the fuse connects the switching switch
The 3rd end, the other end is connected with jack, and the jack is for connecting the actuator.
Further, the signal monitoring circuit includes the 3rd resistor and the 4th resistance of series connection, series connection node difference
With the first charactron voltage detection module, the first capacitance and the second capacitance connection of ground connection, and for connecting the engine control
Device processed；Its first free end is used to connect the actuator, the second free ending grounding.
Further, the analogue signal acquisition circuit includes the adjustable resistance and the 5th resistance of series connection, series connection node
Respectively with the second charactron voltage detection module, the 3rd capacitance and the 4th capacitance connection of ground connection, and for connecting described start
Machine controller；Its first free end connects power supply, the second free ending grounding.
Further, the switching signal Acquisition Circuit includes the second light emitting diode and toggle switch, second hair
The anode connection power supply of optical diode, cathode connect the first end of the toggle switch, and the second end of the toggle switch is vacant,
3rd end is grounded, the 4th end the 5th capacitance, the 6th resistance and the 6th capacitance connection with ground connection, and for connecting the hair respectively
Motivation controller.
Further, transmission cable is further included, for by the engine controller and accelerator pedal and/or small signal
Generator connects.
In conclusion advantageous effect provided by the utility model is：Using this testing cassete analogue signal acquisition circuit and
Switching signal Acquisition Circuit gathers signal, and acquisition signal is sent to engine controller, and engine controller is according to these
Signal generation control signal, and send control signals to switching switch.Switching switch receives control signal, wherein with switching
The dummy-load circuit of connection is switched, then is used to detect engine controller when first end is connected with second end whether will control
Signal output.Since signal output apparatus is connected with actuator, actuator can be also sent control signals to.Actuator will
Actual implementing result is sent to engine controller by signal monitoring circuit.Switching switch is additionally operable to actually holding in actuator
When the row result actual implementing result of theory corresponding with control signal is identical, the switching signal that engine control provides is received, with
First end is made to be connected with second end, hereafter dummy-load circuit be used to receiving engine controller offer to induction signal, and root
Identical the results show is carried out according to induction signal.By this engine controller functional test box, engine just can be directly tested out
Whether controller is qualified.Engine bench test directly no longer is carried out to engine, damage engine is avoided, and utilizes this engine control
Device functional test box processed tests engine, and test operation is convenient and efficient, and test result is substantially directly perceived.
Description of the drawings
Fig. 1 is a kind of circuit block diagram of engine controller functional test box provided by the utility model.
Fig. 2 is the circuit theory that switching switch is connected with dummy-load circuit and signal output apparatus in the utility model
Figure.
Fig. 3 is the circuit diagram of signal monitoring circuit in the utility model.
Fig. 4 is the circuit diagram of analogue signal acquisition circuit in the utility model.
Fig. 5 is the circuit diagram of switching signal Acquisition Circuit in the utility model.
In figure, 100- testing cassetes；110- switching switches；120- dummy-load circuits；121- inductance；122- first resistors；
123- second resistances；The first light emitting diodes of 124-；130- signal output apparatus；131- fuses；132- jacks；140- is simulated
Signal acquisition circuit；141- adjustable resistances；The 5th resistance of 142-；143- the second charactron voltage detection modules；The 3rd electricity of 144-
Hold；The 4th capacitances of 145-；150- switching signal Acquisition Circuits；The second light emitting diodes of 151-；152- toggle switches；153- the 5th
Capacitance；The 6th resistance of 154-；The 6th capacitances of 155-；160- signal monitoring circuits；161- 3rd resistors；The 4th resistance of 162-；
163- the first charactron voltage detection modules；The first capacitances of 164-；The second capacitances of 165-.
Specific embodiment
In order to which the technical means, creative features, achievable purpose and effectiveness for realizing the utility model are easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
As shown in Figure 1, a kind of engine controller functional test box, including analogue signal acquisition circuit 140, switching signal
Acquisition Circuit 150, switching switch 110, dummy-load circuit 120, signal output apparatus 130 and signal monitoring circuit 160.It is described
Analogue signal acquisition circuit 140 is used to the acquisition signal of simulation being sent to engine controller.The switching signal acquisition electricity
Road 150 is used to the switching signal collected being sent to the engine controller, so that the engine controller is according to institute
State acquisition signal and switching signal generation control signal.The first end of the switching switch 110 is used to connect engine controller,
Second end is connected with dummy-load circuit 120, and the 3rd end is used to connect actuator by signal output apparatus 130.It is described virtual
Whether load circuit 120 is defeated by control signal for detecting the engine controller when the first end is connected with second end
Go out.The signal output apparatus 130 is used to be forwarded to the control signal when the first end is connected with the 3rd end described
Actuator.
For connecting the actuator, output terminal is used to connect described start the input terminal of the signal monitoring circuit 160
Machine controller, for the actual implementing result of the actuator to be transmitted to the engine controller.The switching switch 110
It is additionally operable to, when the actual implementing result actual implementing result of theory corresponding with the control signal of the actuator is identical, connect
The switching signal that the engine controller provides is received, so that the first end is connected with second end, the hereafter dummy load
Circuit 120 is used to receiving that the engine controller to provide carries out identical result to induction signal to induction signal, and according to described
Display.
As shown in Fig. 2, the dummy-load circuit 120 includes the inductance 121 of series connection and first resistor 122, first certainly
By the anode respectively with power supply and the first light emitting diode 124 is held to be connected, the second free end by second resistance 123 with it is described
The cathode connection of first light emitting diode 124.Judge whether control signal exports, artificially stir switching in the case of output and open
110 are closed, the control signal of engine controller is exported to actuator, actuator will perform knot by signal monitoring circuit 160
Fruit is forwarded to engine controller, and engine controller is by actual implementing result theoretical implementing result pair corresponding with control signal
Than if engine controller is qualified, pulse signal is retransmited to dummy load after sending switching signal to switching switch 110
Circuit 120, then the first light emitting diode 124 flicker.
As shown in Fig. 2, the signal output apparatus 130 includes fuse 131, one end connection institute of the fuse 131
The 3rd end of switching switch 110 is stated, the other end is connected with jack 132, and the jack 132 is used to connect the actuator.
As shown in figure 3, the signal monitoring circuit 160 includes 161 and the 4th resistance 162 of 3rd resistor of series connection, string
Interlink point is connected respectively with the first charactron voltage detection module 163 of ground connection, the first capacitance 164 and the second capacitance 165, is used in combination
In the connection engine controller；Its first free end is used to connect the actuator, the second free ending grounding.Implementing result
It is forwarded to engine controller and implementing result is shown by the first charactron voltage detection module 163.
As shown in figure 4, the analogue signal acquisition circuit 140 includes 141 and the 5th resistance 142 of adjustable resistance of series connection,
Its series connection node is connected respectively with the second charactron voltage detection module 143, the 3rd capacitance 144 and the 4th capacitance 145 of ground connection,
And for connecting the engine controller；Its first free end connects power supply, the second free ending grounding.Manually adjust adjustable electric
The resistance value of resistance 141, so as to generate analog acquisition signal, the second charactron voltage detection module 143 can show acquisition signal, and
Acquisition signal is sent to engine controller.
As shown in figure 5, the switching signal Acquisition Circuit 150 includes the second light emitting diode 151 and toggle switch 152,
The anode connection power supply of second light emitting diode 151, cathode connects the first end of the toggle switch 152, described to stir
The second end of switch 152 is vacant, the 3rd end ground connection, the 4th end respectively with the 5th capacitance 153 of ground connection, the 6th resistance 154 and the
Six capacitances 155 connect, and for connecting the engine controller.Engine controller is after switching signal is received, root
According to the signal generation control signal collected.
The engine controller functional test box further includes transmission cable, for by the engine controller with accelerate
Pedal and/or the connection of small signal generator.After connection, analogue signal acquisition circuit acquisition is the generation of small signal generator
Engine rotational speed signal and sentence the voltage signal that the frequency signals such as cylinder signal and accelerator pedal are generated.
Using more than structure, what analogue signal acquisition circuit 140 gathered is that the resistance value of adjustable resistance 141 is adjusted
The voltage signal of generation, voltage signal is shown by the second charactron voltage detection module 143 or the life of small signal generator
Into engine rotational speed signal and sentence the voltage signal that the frequency signals such as cylinder signal and accelerator pedal generated, and by this
A little acquisition signals are all sent to engine controller.Switching signal Acquisition Circuit 150 is used to send the switching signal collected
To engine controller.Engine controller is controlled according to the acquisition signal and switching signal collected by being generated after calculating
Signal processed, and send control signals to switching switch 110.Switching switch 110 receives control signal, wherein with switching switch
Whether the dummy-load circuit 120 of 110 connections is then used to detect engine controller when first end is connected with second end will control
Signal output processed.If there is control signal exports, the first light emitting diode 124 in dummy-load circuit 120 just shines.It determines
After control signal being exported, switching switch 110 is artificially stirred in the case where control signal exports, by engine controller
Control signal is exported to actuator, and actuator can be the execution pair such as direct current generator of ignition coil, atomizer, electronic throttle
As implementing result is forwarded to engine controller by actuator by signal monitoring circuit 160.Engine controller will actually be held
The theoretical implementing result comparison corresponding with control signal of row result, if engine controller is qualified, sends out to switching switch 110
It send and pulse signal is retransmited after switching signal to dummy-load circuit 120, then the first LED flash 124.It uses
Whether qualified this engine controller functional test box just can directly test out engine controller.No longer directly to engine
Engine bench test is carried out, avoids damage engine, and engine is tested using this engine controller functional test box,
Test operation is convenient and efficient, and test result is substantially directly perceived.
It these are only the embodiment of the utility model, it does not limit the scope of the patent of the present invention, every profit
The equivalent structure made with the utility model specification and accompanying drawing content is directly or indirectly used in other relevant technology necks
Domain, similarly within the scope of patent protection of the utility model.
Claims (7)
1. a kind of engine controller functional test box, it is characterised in that：It is gathered including analogue signal acquisition circuit, switching signal
Circuit, switching switch, dummy-load circuit, signal output apparatus and signal monitoring circuit, the analogue signal acquisition circuit are used
In the acquisition signal of simulation is sent to engine controller, the switching signal Acquisition Circuit is used to believe on the switch collected
Number the engine controller is sent to, so that the engine controller is according to the acquisition signal and switching signal generation control
Signal processed；For the first end of the switching switch for connecting engine controller, second end is connected with dummy-load circuit, and the 3rd
By signal output apparatus for connecting actuator, the dummy-load circuit is used to be connected with second end in the first end at end
When detect whether the engine controller exports control signal, the signal output apparatus is used in the first end and the
The control signal is forwarded to the actuator when three ends connect；
For connecting the actuator, output terminal controls the input terminal of the signal monitoring circuit for connecting the engine
Device, for the actual implementing result of the actuator to be transmitted to the engine controller；The switching switch is additionally operable to
When the actual implementing result of the actuator actual implementing result of theory corresponding with the control signal is identical, the hair is received
The switching signal that motivation controller provides, so that the first end is connected with second end, hereafter the dummy-load circuit is used for
Receive the engine controller offer carries out identical the results show to induction signal, and according to described to induction signal.
2. a kind of engine controller functional test box according to claim 1, it is characterised in that：The dummy load electricity
Road includes the inductance of series connection and first resistor, anode of first free end respectively with power supply and the first light emitting diode are connected,
Its second free end is connected by second resistance with the cathode of first light emitting diode.
3. a kind of engine controller functional test box according to claim 1, it is characterised in that：The signal output electricity
Road includes fuse, and one end of the fuse connects the 3rd end of the switching switch, and the other end is connected with jack, described to insert
Hole is used to connect the actuator.
4. a kind of engine controller functional test box according to claim 1, it is characterised in that：The signal monitoring electricity
Road include series connection 3rd resistor and the 4th resistance, series connection node respectively with the first charactron voltage detection module of ground connection,
First capacitance and the second capacitance connection, and for connecting the engine controller；Its first free end is used to connect described hold
Row device, the second free ending grounding.
5. a kind of engine controller functional test box according to claim 1, it is characterised in that：The analog signal is adopted
Collector includes the adjustable resistance and the 5th resistance of series connection, series connection node the second charactron voltage detecting mould with ground connection respectively
Block, the 3rd capacitance and the 4th capacitance connection, and for connecting the engine controller；Its first free end connects power supply, the
Two free ending groundings.
6. a kind of engine controller functional test box according to claim 1, it is characterised in that：The switching signal is adopted
Collector includes the second light emitting diode and toggle switch, the anode connection power supply of second light emitting diode, cathode connection
The first end of the toggle switch, the second end of the toggle switch is vacant, the 3rd end ground connection, the 4th end respectively with ground connection the
Five capacitances, the 6th resistance and the 6th capacitance connection, and for connecting the engine controller.
7. a kind of engine controller functional test box according to claim 1, it is characterised in that：Further include transmission line
Cable, for the engine controller to be connected with accelerator pedal and/or small signal generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721705308.1U CN207457829U (en) | 2017-12-08 | 2017-12-08 | A kind of engine controller functional test box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721705308.1U CN207457829U (en) | 2017-12-08 | 2017-12-08 | A kind of engine controller functional test box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207457829U true CN207457829U (en) | 2018-06-05 |
Family
ID=62276540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721705308.1U Active CN207457829U (en) | 2017-12-08 | 2017-12-08 | A kind of engine controller functional test box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207457829U (en) |
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2017
- 2017-12-08 CN CN201721705308.1U patent/CN207457829U/en active Active
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