CN108646724A - A kind of electric vehicle fault detect instrument and fault detection method - Google Patents
A kind of electric vehicle fault detect instrument and fault detection method Download PDFInfo
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- CN108646724A CN108646724A CN201810852029.0A CN201810852029A CN108646724A CN 108646724 A CN108646724 A CN 108646724A CN 201810852029 A CN201810852029 A CN 201810852029A CN 108646724 A CN108646724 A CN 108646724A
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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
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
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Abstract
The invention discloses a kind of electric vehicle fault detect instrument and fault detection methods, including are provided with the instrument housing of aviation socket, GSS Gear Select Switch, detection converter, governor and the voltage display being electrically connected with detection converter.GSS Gear Select Switch include with electric vehicle advance, retreat, stop gear it is corresponding advance, retreat, stop gear.Governor is corresponding with electric vehicle E-Gas, including potentiometer and knob linkage switch.Voltage, stopping gear voltage, forward voltage and the gear, two gears, three gears, four gears, five gears and the six gear detection circuits that retreat gear voltage when being correspondingly connected with detection battery voltage, E-Gas supply voltage, E-Gas speed change between detection converter and aviation socket.The present invention whether there is failure, detection is quick, comprehensive and versatile based on detection circuit by the detection method communicated between control unit interface to search controller.
Description
Technical field
The present invention relates to there is electric vehicle field of fault detection, it is related specifically to a kind of for detecting electric vehicle failure
Electric vehicle fault detect instrument and fault detection method.
Background technology
In face of increasingly severe energy and environment problem, the energy saving hot spot for just becoming current research with new-energy automobile.Make
For energy saving and new-energy automobile one kind, pure electric automobile has emission-free discharge, energy efficiency height, noise in the process of moving
The multiple advantages such as low, recoverable energy, therefore pure electric automobile is greatly developed to energy security, environmental protection with great
Meaning.
Although electric vehicle is fast-developing, market maintenance rises significantly, and the failure rate that electric vehicle occurs is also therewith
Increase, and some low-speed electronic automobiles are dedicated for the shops 4S of fault detect, repair, at present maintenance department's specialized maintenance skill
Art personnel are still in short supply, and ordi-nary maintenance personnel are again limited to the control ability of emerging electric vehicle fault detect, repair；Electronic vapour
The wiring of vehicle device lid is more and move towards complexity, is detected using ordinary multimeter time-consuming and laborious, and the limitation of above-mentioned condition undoubtedly increases
The difficulty of electric vehicle fault detect, repair.
There are many automatic fault detector for vehicle control unit of electric vehicle on the market at present, although accuracy of detection is higher,
It is complicated, cost is higher, and detection process is cumbersome, it is often more important that poor universality cannot be adapted to various brands, each completely
The electric vehicle controller of kind model, therefore be not suitable for needing in maintenance department using the maintenance personal that a variety of models repair.
Chinese patent Authorization Notice No.：CN202120119U, discloses a kind of electricity at authorized announcement date on January 18th, 2012
Electrical automobile entire car controller automatic fault detector, including including microprocessor, power module, power supply output module, CAN moulds
Block, serial port module, I/O input modules, I/O output modules, PWM wave output module, AD output modules, AD input modules, capture
Input module, display module and key-press module, microprocessor distinguish circuit connection power module, power supply output module, CAN moulds
Block, serial port module, I/O input modules, I/O output modules, PWM wave output module, AD output modules, AD input modules, capture
Input module, display module and key-press module, although can shorten detection time, structure composition is complicated, and versatility is not strong,
Be not suitable for promoting the use of in maintenance department.
Invention content
In order to overcome above-mentioned the deficiencies in the prior art, first technical problem solved by the invention to be, propose
A kind of electric vehicle fault detect instrument, the fault detect instrument is simple in structure, and detection is quickly, comprehensively, versatile, and
Testing result is more intuitive.
As the same technical concept, another technical problem solved by the invention is, it is proposed that a kind of using above-mentioned
The fault detection method of electric vehicle fault detect instrument.
In order to solve the first technical problem mentioned above, the technical solution adopted in the present invention is：A kind of electric vehicle failure inspection
Instrument is surveyed, including：Instrument housing；The instrument housing is provided with aviation socket, voltage display, GSS Gear Select Switch, detection
Converter and governor.
The GSS Gear Select Switch includes forward, retreats gear and stop gear, before the GSS Gear Select Switch
It is corresponding with electric vehicle forward into gear, the retrogressing gear of the retrogressing gear and electric vehicle of the GSS Gear Select Switch
Corresponding, stopping gear and electric vehicle the stopping gear of the GSS Gear Select Switch are corresponding.
The governor includes potentiometer and knob linkage switch, and the governor is opposite with electric vehicle E-Gas
It answers.
The voltage display is electrically connected with the signal output end of the detection converter.
It is connected with a plurality of detection circuit in parallel, the detection circuit between detection converter and the aviation socket
It is corresponded with the gear input terminal in the detection converter, the detection circuit of a plurality of parallel connection includes：For detecting electricity
One gear detection circuit of electrical automobile battery voltage, for the knob linkage switch detection electric vehicle by the governor
Two gear detection circuits of E-Gas supply voltage, for detecting electric vehicle electronics oil by the potentiometer of the governor
Three gear detection circuits of voltage when door speed change, stop for detecting electric vehicle by the stopping gear of the GSS Gear Select Switch
Four gear detection circuits of stop position voltage are advanced for detecting electric vehicle by the forward of the GSS Gear Select Switch
Five gear detection circuits of gear voltage, for detecting electric vehicle reverse drive gear by the retrogressing gear of the GSS Gear Select Switch
Six gear detection circuits of position voltage.
Further, the aviation socket includes at least nine core feet；One end of the one gear detection circuit and the boat
First core foot of dummy receptacle is connected, the other end and be set to the electric lock switch of the instrument housing, the detection converter one
Gear input terminal and the voltage display are respectively connected with, and the electric lock switch is connected with the second core foot of the aviation socket.
Concatenate knob linkage switch in the two gears detection circuit, the knob linkage switch one end with it is described
The third core foot of aviation socket is connected, and the 6th core foot of the other end and two gear input terminals and the aviation socket is respectively connected with.
The three gears detection circuit includes divider resistance, and one end of the divider resistance is described with the aviation socket
Third core foot is connected, and the other end is connected with the stationary contact of the potentiometer, another stationary contact and the boat of the potentiometer
4th core foot of dummy receptacle is connected, the 5th core foot of the movable contact of the potentiometer and three gear input terminals and the aviation socket
It is respectively connected with.
The 9th core foot of one end of the four gears detection circuit and the contact and the aviation socket for stopping gear
It is respectively connected with, the other end is connected with four gear input terminals.
One end of the five gears detection circuit is connected with the contact of the forward, the other end and five gear input terminals
It is connected.
One end of the six gears detection circuit is connected with the contact for retreating gear, the other end and six gear input terminals
It is connected.
Wherein, the first core foot is connected with the electric lock output switching terminal of electric vehicle controller, the second core foot with
The electric lock switch input terminal of the electric vehicle controller is connected, the electronics of the third core foot and the electric vehicle controller
Throttle anode is powered, and output end is connected, and the E-Gas cathode of the 4th core foot and the electric vehicle controller is for electricity output
End is connected, and the 5th core foot is connected with the E-Gas variable rate signal input terminal of the electric vehicle controller, and the described 6th
Core foot is connected with the E-Gas switch signal input end of the electric vehicle controller, the 7th core foot and the electronic vapour
The progress signal input terminal of vehicle controller is connected, the backing signal input terminal of the 8th core foot and the electric vehicle controller
It is connected, the 9th core foot is connected with the gear power input of the electric vehicle controller.
Further, the gear detection circuit further includes fuse and diode, described fuse one end and described the
One core foot is connected, and the other end is connected with electric lock switch, the gear input terminal and the diode cathode respectively, described
The cathode of diode is connected with the voltage display, and the voltage display is connected with the 4th core foot.
Further, the three gears detection circuit further includes zener diode and filter capacitor, and the zener diode is simultaneously
It being associated between two stationary contacts of the potentiometer, one end of the filter capacitor is connected with the movable contact of the potentiometer,
The other end is connected with the 4th core foot.
Further, the electric vehicle fault detect instrument further includes measure traverse line and the anode that is set on instrument housing
Jack and cathode jack, one end of the measure traverse line are provided with compatible just with the positive jack, the cathode jack
Pole plug, cathode plug, the other end are provided with positive measuring head and cathode measuring head；The anode jack and the cathode jack
Electrical connection corresponding with the voltage display.
Further, the electric vehicle fault detect instrument further includes connection wiring harness, one end setting of the connection wiring harness
There are aviation plug compatible with the aviation socket, the other end of the connection wiring harness to be provided with electric vehicle controller grafting
Head.
To solve above-mentioned second technical problem, the technical solution adopted in the present invention is：A kind of electric vehicle failure inspection
Survey method is included the following steps using above-mentioned electric vehicle fault detect instrument：
A, from the ground by the drive axle of electric vehicle branch；
B, the core foot of the aviation socket is defined：The aviation socket includes at least nine core feet, wherein first
Core foot is connected with the electric lock output switching terminal of electric vehicle controller, and the electric lock of the second core foot and the electric vehicle controller is opened
It closes input terminal to be connected, third core foot is connected with the E-Gas anode of electric vehicle controller power supply output end, the 4th core
Foot is connected with the E-Gas cathode of electric vehicle controller power supply output end, the 5th core foot and the Control of Electric Vehicles
The E-Gas acceleration signal input end of device is connected, the E-Gas switching signal of the 6th core foot and the electric vehicle controller
Input terminal is connected, and the 7th core foot is connected with the progress signal input terminal of the electric vehicle controller, the 8th core foot and the electricity
The backing signal input terminal of electrical automobile controller is connected, the gear power input of the 9th core foot and the electric vehicle controller
It is connected；
C, the electric vehicle fault detect instrument is connect with the electric vehicle controller；
D, the detection converter is threaded to a gear, the voltage display shows that battery voltage, opening are set at this time
Fault detect is carried out in the electric lock switch of the instrument housing；
E, it rotates the governor to the knob linkage and switchs opening, the detection converter is threaded to two gears, is examined
The E-Gas supply voltage of electric vehicle is surveyed, if the voltage display does not show supply voltage, controller damage at this time；
F, the detection converter is threaded to three gears, in the presence of E-Gas supply voltage, rotates institute again
Governor is stated, voltage when E-Gas speed change is detected using the potentiometer of the governor, if the voltage is aobvious at this time
Show voltage when device does not show E-Gas speed change, then controller damages；
G, the detection converter is threaded to four gears, the GSS Gear Select Switch is pressed to the stopping gear, detection electricity
Electrical automobile stops gear voltage, if the voltage display does not show stopping gear voltage, controller damage at this time；Detection knot
Shu Hou rotates the governor to the knob linkage and switchs closing；
H, the detection converter is threaded to five gears, the GSS Gear Select Switch is pressed to the forward, detection electricity
Electrical automobile forward voltage, if the voltage display does not show forward voltage, controller damage at this time；If control
Device does not damage, rotates the governor to the knob linkage at this time and switchs opening, and continue to rotate the governor, detects vehicle
Whether wheel rotates forward, if wheel is motionless, needs further to investigate connection line and electrical fault；After detection, rotation
Turn the governor to the knob linkage and switchs closing；
I, the detection converter is threaded to six gears, the GSS Gear Select Switch is pressed to the retrogressing gear, detection electricity
Electrical automobile retreats gear voltage, if the voltage display does not show and moves back gear voltage at this time, controller damage；If controller
It does not damage, rotates the governor to the knob linkage at this time and switch opening, and continue to rotate the governor, detect wheel
Whether rotate backward, if wheel is motionless, needs further to investigate connection line and electrical fault；After detection, rotation
The governor is switched to the knob linkage and is closed.
Further, when voltmeter in use, by the electric vehicle fault detect instrument and the electric vehicle controller
It disconnects, and the detection converter is threaded to a gear, utilize the anode being arranged on measure traverse line and the instrument housing
Jack, cathode jack carry out the detection of 5V~100V voltages, and the anode jack and the cathode jack are shown with the voltage
Device corresponds to electrical connection.
Further, in step e, the E-Gas supply voltage is 5V~15V.
Further, in step f, voltage is 0V~4.8V when the E-Gas speed change.
After using above-mentioned technical proposal, the beneficial effects of the invention are as follows：
Electric vehicle fault detect instrument of the present invention is connected with vehicle control unit of electric vehicle, realizes mutually passing on from one to another for signal
It send, the forward of GSS Gear Select Switch is the replacement operating element of electric vehicle forward, the retrogressing of GSS Gear Select Switch
Gear is the replacement operating element of the retrogressing gear of electric vehicle, and the stopping gear of GSS Gear Select Switch is electric vehicle lock catch
The replacement operating element of position；Governor is the replacement operating element of electric vehicle E-Gas.Based on this, a plurality of inspection is utilized
Slowdown monitoring circuit quickly can comprehensively search entire car controller and whether there is failure, and quick and easyization detection, contracting are carried out to complicated circuit
Short failure detection time greatly improves the working efficiency of production and repair；And voltage display can intuitively show fault condition；
It can more importantly be connect to carry out matching with the controller for electric vehicle of different brands, model, to the electric vehicle of different model
It repairs, it is versatile.In emergency circumstances, using the replacement operating element of electric vehicle fault detect instrument by electronic vapour
Vehicle drives away.
The configuration of the present invention is simple, manufacturing cost is low, easy to detect, is suitble to the use of maintenance personal.
Description of the drawings
Fig. 1 is the structural schematic diagram of instrument housing in electric vehicle fault detect instrument of the present invention；
Fig. 2 is the structural schematic diagram of connection wiring harness in electric vehicle fault detect instrument of the present invention；
Fig. 3 is the structural schematic diagram of measure traverse line in electric vehicle fault detect instrument of the present invention；
Fig. 4 is the detection circuit schematic diagram of electric vehicle fault detect instrument of the present invention；
In figure：1- instrument housings, 11- aviation sockets, 12- voltage displays, 13- electric locks switch, the selection of 14- gears are opened
It closes, 141- forwards, 142- retreats gear, and 143- stops gear, 15- governors, and 16- detects converter, and 17- anodes are inserted
Hole, 18- cathode jacks, 19- fuse holders, 2- connection wiring harnesses, 21- aviation plugs, 22- electric vehicle controller connection-pegs, 3-
Measure traverse line, 31- anode plugs, 32- cathode plugs, 33- anode measuring heads, 34- cathode measuring heads, R- divider resistances, RP- electricity
Position device, S- knob linkages switch, D1- zener diodes, D2- diodes, FU- fuses, C- filter capacitors, A1- the first core feet,
A2- the second core feet, A3- third core feet, the 4th core feet of A4-, the 5th core feet of A5-, the 6th core feet of A6-, the 7th core feet of A7-, A8-
Eight core feet, the 9th core feet of A9-.
Specific implementation mode
In conjunction with attached drawing, the present invention is described in further detail with its specific embodiment.
As shown in Figure 1 to Figure 3, electric vehicle fault detect instrument includes mainly instrument housing 1 and connection wiring harness 2, instrument
1 top of shell is provided with aviation socket 11, and one end of connection wiring harness 2 is provided with aviation plug compatible with the aviation socket 11
21, the other end of connection wiring harness 2 is provided with electric vehicle controller connection-peg 22.
Voltage display 12 (including display screen and the control circuit for showing false voltage are provided on instrument housing 1
Plate), electric lock switch 13, GSS Gear Select Switch 14 detects converter 16 and governor 15,14 (namely city of GSS Gear Select Switch
Three common driving switch on face) include forward 141, retreat gear 142 and stop gear 143, wherein forward
141, one can only be selected and open or close by retreating gear 142 and stopping gear 143, the forward 141 of GSS Gear Select Switch 14
Corresponding with electric vehicle forward, the retrogressing gear 142 of GSS Gear Select Switch 14 is opposite with the retrogressing gear of electric vehicle
It answers, stopping gear 143 and electric vehicle the stopping gear of GSS Gear Select Switch 14 are corresponding.
Governor 15 is corresponding with electric vehicle E-Gas；Governor 15 includes potentiometer RP and knob linkage switch S,
The knob of potentiometer RP is located at the outside of instrument housing 1.So-called knob linkage switch S is when 15 (i.e. potentiometer of twist-shifter
The knob of RP), when the movable contact of potentiometer RP being driven to slide into critical point, that is, when governor 15 is threaded to critical localisation, this
When knob linkage switch S close that (state of the knob linkage switch S in corresponding access circuit is off-state, place circuit
It is obstructed)；When governor 15 is threaded to be detached from critical localisation, knob linkage switch S opens the (knob in i.e. corresponding access circuit at this time
The state of linked switch S is closed state, place circuit turn-on).
Voltage display 12 is electrically connected with the signal output end of detection converter 16 by signal wire, realizes detection voltage letter
Number display；The inspection of a plurality of parallel connection is connected between the gear input terminal and multiple core feet of aviation socket 12 of detection converter 16
Slowdown monitoring circuit, detection circuit and the gear input terminal of detection converter 16 correspond.Aviation socket 12 has nine in the present embodiment
Core foot, there are six gear input terminal, detection circuits six for detection converter 16.
Wherein, six detection circuits are respectively：A gear detection circuit for detecting batteries of electric automobile group voltage is used
In the two gear detection circuits for detecting electric vehicle E-Gas supply voltage by the knob linkage switch S of governor 15, use
The three gear detection circuits of voltage when detecting electric vehicle E-Gas speed change by the potentiometer RP of governor 15, for leading to
The gear 143 that stops for crossing GSS Gear Select Switch 14 detects the four gear detection circuits that electric vehicle stops gear voltage, for leading to
The forward 141 for crossing GSS Gear Select Switch 14 detects five gear detection circuits of electric vehicle forward voltage, for leading to
The gear 142 that retreats for crossing GSS Gear Select Switch 14 detects the six gear detection circuits that electric vehicle retreats gear voltage.
As shown in figure 4, one end of a gear detection circuit is connected with the first core foot A1 of aviation socket 11, the other end and electricity
Lock-switch 12, a gear input terminal and the positive incoming end of voltage display 12 are respectively connected with；Electric lock switch 12 and aviation socket 11
The second core foot A2 be connected.In order to ensure safety, a gear detection circuit needs to concatenate fuse FU and diode D2, insurance
Silk the one end FU be connected with the first core foot A1, the other end respectively with electric lock switch 12, a gear input terminal and diode cathode D2 phases
Even, the cathode of diode D2 is connected with voltage display 12, and the cathode incoming end of voltage display 12 is connected with the 4th core foot A4,
The power supply of voltage display 12 comes from the first core foot A1 and the 4th core foot A4；Fuse RU is contained in fuse holder 19,
Fuse holder 19 is mounted on the bottom of instrument housing 1.
Concatenate knob linkage switch S in two gear detection circuits, the of knob linkage one end switch S and aviation socket 11
Three core foot A3 are connected, and the 6th core foot A6 of the other end and two gear input terminals and aviation socket 11 is respectively connected with.
Three gear detection circuits include divider resistance R, one end of divider resistance R and the third core foot A3 phases of aviation socket 11
Even, the other end is connected with the stationary contact of potentiometer RP, another stationary contact of potentiometer RP and the 4th core foot of aviation socket 11
A4 is connected, and the movable contact of potentiometer RP and the 5th core foot A5 of three gear input terminals and aviation socket 11 are respectively connected with.Three gears
Detection circuit further includes zener diode D1 and filter capacitor C, and zener diode D1 is connected in parallel on two stationary contacts of potentiometer RP
Between, one end of filter capacitor C is connected with the movable contact of potentiometer RP, and the other end is connected with the 4th core foot A4.Wherein divider resistance R
Resistance value be 10K, power 2W；The model 47HF/16V of filter capacitor C.
One end of four gear detection circuits and the 9th core foot A9 of the contact and aviation socket 11 that stop gear 143 distinguish phase
Even, the other end is connected with four gear input terminals.
One end of five gear detection circuits is connected with the contact of forward 141, and the other end is connected with five gear input terminals.
One end of six gear detection circuits is connected with the contact for retreating gear 142, and the other end is connected with six gear input terminals.
Wherein, by aviation socket 11, aviation plug 21 and electric vehicle controller connection-peg 22, the first core foot A1 is completed
It is connected with the electric lock output switching terminal of electric vehicle controller, the electric lock switch input of the second core foot A2 and electric vehicle controller
End is connected, and third core foot A3 is connected with the E-Gas anode of electric vehicle controller power supply output end, the 4th core foot A4 and electricity
The E-Gas cathode power supply output end of electrical automobile controller is connected, the E-Gas of the 5th core foot A5 and electric vehicle controller
Variable rate signal input terminal is connected, and the 6th core foot A6 is connected with the E-Gas switch signal input end of electric vehicle controller, the
Seven core foot A7 are connected with the progress signal input terminal of electric vehicle controller, the retrogressing of the 8th core foot A8 and electric vehicle controller
Signal input part is connected, and the 9th core foot A9 is connected with the gear power input of electric vehicle controller.
Separately：The electric vehicle fault detect instrument also has another function, serves as multimeter use.The two of aviation socket 11
1 top of instrument housing of side is provided with positive jack 17 and cathode jack 18, the concatenation of positive jack 17 and the first core foot A1 and guarantor
Between dangerous silk FU, realize that positive jack 17 is connected with the positive incoming end of voltage display 12 indirectly；18 one end of cathode jack and the
Four core foot A1 are connected, and the other end is connected with 12 cathode incoming end of voltage display；The power supply of voltage display 12 directly comes
Self-test object；It is needed when use and measure traverse line 3 connects, 3 one end of measure traverse line is provided with and positive jack 17, cathode jack
18 compatible anode plugs 31, cathode plug 32, the other end are provided with positive measuring head 33 and cathode measuring head 34, can also
It is the form of test clip.
Using the detection method of above-mentioned electric vehicle fault detect instrument, include the following steps：
A, from the ground by the drive axle of electric vehicle branch.
B, the core foot of aviation socket 11 is defined：Aviation socket 11 includes at least nine core feet, wherein the first core foot
A1 is connected with the electric lock output switching terminal of electric vehicle controller, and the electric lock switch of the second core foot A2 and electric vehicle controller is defeated
Enter end to be connected, the E-Gas anode power supply output end of third core foot A3 and electric vehicle controller is connected, the 4th core foot A4 and
The E-Gas cathode power supply output end of electric vehicle controller is connected, the electronics oil of the 5th core foot A5 and electric vehicle controller
Door variable rate signal input terminal is connected, and the 6th core foot A6 is connected with the E-Gas switch signal input end of electric vehicle controller,
7th core foot A7 is connected with the progress signal input terminal of electric vehicle controller, after the 8th core foot A8 and electric vehicle controller
It moves back signal input part to be connected, the 9th core foot A9 is connected with the gear power input of electric vehicle controller.
C, electric vehicle fault detect instrument is connect with electric vehicle controller；
D, detection converter 16 is threaded to a gear, voltage display 12 shows that battery voltage, opening are placed in instrument at this time
The electric lock switch of watch shell 1 carries out fault detect；
E, rotation governor 15 is opened to knob linkage switch S, and detection converter 16 is threaded to two gears, detects electronic vapour
The E-Gas supply voltage of vehicle, if voltage display 12 does not show supply voltage, controller damage at this time.
F, detection converter 16 is threaded to three gears, in the presence of E-Gas supply voltage, rotates speed governing again
Device 15, using the potentiometer RP detection of governor 15 E-Gas speed change when voltage, if voltage display 12 is not shown at this time
Show voltage when E-Gas speed change, then controller damages.
G, detection converter 16 is threaded to four gears, GSS Gear Select Switch 14 is pressed to gear 143 is stopped, and electric vehicle is detected
Stop gear voltage, if voltage display 12 does not show stopping gear voltage, controller damage at this time；After detection, rotation
Turn governor 15 to knob linkage switch S closings.
H, detection converter 16 is threaded to five gears, GSS Gear Select Switch 14, which is pressed, arrives forward 141, detects electric vehicle
Forward voltage, if voltage display 12 does not show forward voltage, controller damage at this time；If controller does not damage
It is bad, governor 15 is rotated at this time and is opened to knob linkage switch S, and continues to rotate governor 15, whether detects wheel to forward
It is dynamic, if wheel is motionless, need further to investigate connection line and electrical fault；After detection, rotation governor 15 to
Knob linkage switch S is closed.
I, detection converter 16 is threaded to six gears, GSS Gear Select Switch 14 is pressed to gear 142 is retreated, and electric vehicle is detected
Gear voltage is retreated, if voltage display 12 does not show retrogressing gear voltage, controller damage at this time；If controller does not damage
It is bad, governor 15 is rotated at this time to knob linkage switch S openings, and continue to rotate governor 15, whether detection wheel turns round
It is dynamic, if wheel is motionless, need further to investigate connection line and electrical fault；After detection, rotation governor 15 to
Knob linkage switch S is closed.
When voltmeter in use, electric vehicle fault detect instrument is disconnected with electric vehicle controller, and will inspection
It surveys converter 16 and is threaded to a gear, set on instrument housing 1 using the anode plug 31 of 3 one end of measure traverse line, cathode plug 32
Positive jack 17, the cathode jack 18 set carry out grafting, and are surveyed using the positive test pen 33 of 3 other end of measure traverse line and cathode
Try the detection that pen 34 carries out 5V~100V voltages.
It should be noted that：1) it is actually to make in one grade of detection circuit electric lock switch 13 in closing to open electric lock switch 13
Conjunction state, i.e. one grade of detection circuit conducting.It is actually that knob linkage in two grades of detection circuits is made to open that knob linkage switch S, which is opened,
It closes S and is in closed state, i.e. two grades of detection circuit conductings；It is actually to make in two grades of detection circuits that knob linkage switch S, which is closed,
Knob linkage switch S is off, i.e., two grades of detection circuits are not turned on conducting.GSS Gear Select Switch 14 is pressed to stopping gear
143 be actually to make to stop 143 contacting of gear in fourth gear detection circuit, i.e. fourth gear detection circuit is connected.Gear selection is opened
It is actually to make 141 contacting of forward in five grades of detection circuits, i.e. five grades of detection circuits that 14, which are closed, by forward 141
Conducting.GSS Gear Select Switch 14 is actually that 142 contact of retrogressing gear in six grades of detection circuits is made to connect by gear 142 is retreated
It is logical, i.e. six grades of detection circuit conductings.
2) first vehicle driving wheel must be propped when detecting, to prevent when detecting vehicle, vehicle accidentally travels, and causes vehicle and people
The safety accident of body.
From various brands, various model electric vehicle controllers define in figure, it is found that no matter controller chip stitch has
How much, it is all identical 9 stitch that can allow the crucial stitch that electric vehicle operation is walked, and only stitch distributing position may be different,
The present invention utilizes this general character of electric vehicle controller, can be installed on the connection wiring harness 2 of electric vehicle fault detect instrument
With the connection-peg of various electric vehicle controller Corresponding matchings, various electric vehicle controllers are detected, enhance versatility.
The present invention is mainly the detection method for utilizing and being communicated between electric vehicle fault detect instrument and entire car controller interface,
It whether there is failure based on detection circuit to search entire car controller, complicated circuit simplifies detection, when shortening fault detect
Between, greatly improve the working efficiency of production and repair.
Certainly, the invention may also have other embodiments, without deviating from the spirit and substance of the present invention, ripe
Various corresponding change and deformations, but these corresponding change and deformations can be made according to the present invention by knowing those skilled in the art
Belong to the protection domain of appended claims of the invention.
Claims (10)
1. a kind of electric vehicle fault detect instrument, including：Instrument housing；It is characterized in that,
The instrument housing is provided with aviation socket, voltage display, GSS Gear Select Switch, detection converter and governor；
The GSS Gear Select Switch includes forward, retreats gear and stop gear, the drive shift of the GSS Gear Select Switch
Position is corresponding with electric vehicle forward, and the retrogressing gear of the GSS Gear Select Switch is opposite with the retrogressing gear of electric vehicle
It answers, stopping gear and electric vehicle the stopping gear of the GSS Gear Select Switch are corresponding；
The governor includes potentiometer and knob linkage switch, and the governor is corresponding with electric vehicle E-Gas；
The voltage display is electrically connected with the signal output end of the detection converter；
It is connected with a plurality of detection circuit in parallel, the detection circuit and institute between detection converter and the aviation socket
The gear input terminal stated in detection converter corresponds, and the detection circuit of a plurality of parallel connection includes：For detecting electronic vapour
One gear detection circuit of vehicle battery voltage, for the knob linkage switch detection electric vehicle electronics by the governor
Two gear detection circuits of throttle supply voltage become for detecting electric vehicle E-Gas by the potentiometer of the governor
Three gear detection circuits of voltage when fast, for detecting electric vehicle lock catch by the stopping gear of the GSS Gear Select Switch
Four gear detection circuits of position voltage, for detecting electric vehicle forward by the forward of the GSS Gear Select Switch
Five gear detection circuits of voltage retreat gear electricity for detecting electric vehicle by the retrogressing gear of the GSS Gear Select Switch
Six gear detection circuits of pressure.
2. electric vehicle fault detect instrument according to claim 1, which is characterized in that the aviation socket includes at least
Nine core feet；
One end of the one gear detection circuit is connected with the first core foot of the aviation socket, the other end and is set to the instrument
The electric lock switch of watch shell, a gear input terminal of the detection converter and the voltage display are respectively connected with, the electricity
Lock-switch is connected with the second core foot of the aviation socket；
The knob linkage switch is concatenated in the two gears detection circuit, the knob linkage switchs one end and the aviation
The third core foot of socket is connected, and the 6th core foot of the other end and two gear input terminals and the aviation socket is respectively connected with；
The three gears detection circuit includes divider resistance, the third of one end of the divider resistance and the aviation socket
Core foot is connected, and the other end is connected with the stationary contact of the potentiometer, and another stationary contact and the aviation of the potentiometer are inserted
4th core foot of seat is connected, and the movable contact of the potentiometer and the 5th core foot of three gear input terminals and the aviation socket are distinguished
It is connected；
Distinguish with the 9th core foot of the contact for stopping gear and the aviation socket one end of the four gears detection circuit
It is connected, the other end is connected with four gear input terminals；
One end of the five gears detection circuit is connected with the contact of the forward, the other end and five gear input terminal phases
Even；
One end of the six gears detection circuit is connected with the contact for retreating gear, the other end and six gear input terminal phases
Even；
Wherein, the first core foot is connected with the electric lock output switching terminal of electric vehicle controller, the second core foot with it is described
The electric lock switch input terminal of electric vehicle controller is connected, the E-Gas of the third core foot and the electric vehicle controller
Anode power supply output end is connected, the E-Gas cathode power supply output end phase of the 4th core foot and the electric vehicle controller
Even, the 5th core foot is connected with the E-Gas variable rate signal input terminal of the electric vehicle controller, the 6th core foot
It is connected with the E-Gas switch signal input end of the electric vehicle controller, the 7th core foot and the electric vehicle control
The progress signal input terminal of device processed is connected, the backing signal input terminal phase of the 8th core foot and the electric vehicle controller
Even, the 9th core foot is connected with the gear power input of the electric vehicle controller.
3. electric vehicle fault detect instrument according to claim 2, which is characterized in that the gear detection circuit is also
Including fuse and diode, described fuse one end is connected with the first core foot, the other end respectively with the electric lock switch,
The one gear input terminal is connected with the diode cathode, and the cathode of the diode is connected with the voltage display, institute
Voltage display is stated with the 4th core foot to be connected.
4. electric vehicle fault detect instrument according to claim 2, which is characterized in that the three gears detection circuit is also
Including zener diode and filter capacitor, the zener diode is connected in parallel between two stationary contacts of the potentiometer,
One end of the filter capacitor is connected with the movable contact of the potentiometer, and the other end is connected with the 4th core foot.
5. electric vehicle fault detect instrument according to claim 1, which is characterized in that the electric vehicle fault detect
Instrument further includes that measure traverse line and the positive jack being set on instrument housing and cathode jack, one end of the measure traverse line are set
It is equipped with anode plug compatible with the positive jack, the cathode jack, cathode plug, the other end is provided with positive test
Head and cathode measuring head；The anode jack and cathode jack electrical connection corresponding with the voltage display.
6. electric vehicle fault detect instrument according to claim 1, which is characterized in that the electric vehicle fault detect
Instrument further includes connection wiring harness, and one end of the connection wiring harness is provided with aviation plug compatible with the aviation socket, institute
The other end for stating connection wiring harness is provided with electric vehicle controller connection-peg.
7. a kind of electric vehicle fault detection method, which is characterized in that use electric vehicle fault detect described in claim 1
Instrument includes the following steps：
A, from the ground by the drive axle of electric vehicle branch；
B, the core foot of the aviation socket is defined：The aviation socket includes at least nine core feet, wherein the first core foot
It is connected with the electric lock output switching terminal of electric vehicle controller, the electric lock switch of the second core foot and the electric vehicle controller is defeated
Enter end to be connected, the E-Gas anode power supply output end of third core foot and the electric vehicle controller is connected, the 4th core foot and
The E-Gas cathode power supply output end of the electric vehicle controller is connected, the 5th core foot and the electric vehicle controller
E-Gas acceleration signal input end is connected, and the E-Gas switching signal of the 6th core foot and the electric vehicle controller inputs
End is connected, and the 7th core foot is connected with the progress signal input terminal of the electric vehicle controller, the 8th core foot and the electronic vapour
The backing signal input terminal of vehicle controller is connected, the gear power input phase of the 9th core foot and the electric vehicle controller
Even；
C, the electric vehicle fault detect instrument is connect with the electric vehicle controller；
D, the detection converter is threaded to a gear, the voltage display shows that battery voltage, opening are placed in institute at this time
The electric lock switch for stating instrument housing carries out fault detect；
E, it rotates the governor to the knob linkage and switchs opening, the detection converter is threaded to two gears, detection electricity
The E-Gas supply voltage of electrical automobile, if the voltage display does not show supply voltage, controller damage at this time；
F, the detection converter is threaded to three gears, in the presence of E-Gas supply voltage, rotates the tune again
Fast device detects voltage when E-Gas speed change using the potentiometer of the governor, if the voltage display at this time
Voltage when E-Gas speed change is not shown, then controller damages；
G, the detection converter is threaded to four gears, the GSS Gear Select Switch is pressed to the stopping gear, and electronic vapour is detected
Vehicle stops gear voltage, if the voltage display does not show stopping gear voltage, controller damage at this time；Detection terminates
Afterwards, it rotates the governor to the knob linkage and switchs closing；
H, the detection converter is threaded to five gears, the GSS Gear Select Switch is pressed to the forward, and electronic vapour is detected
Vehicle forward voltage, if the voltage display does not show forward voltage, controller damage at this time；If controller is not
Damage rotates the governor to the knob linkage and switchs opening at this time, and continues to rotate the governor, and detection wheel is
It is no to rotate forward, if wheel is motionless, need further to investigate connection line and electrical fault；After detection, institute is rotated
It states governor to the knob linkage and switchs closing；
I, the detection converter is threaded to six gears, the GSS Gear Select Switch is pressed to the retrogressing gear, and electronic vapour is detected
Vehicle retreats gear voltage, if the voltage display does not show and moves back gear voltage at this time, controller damage；If controller does not damage
It is bad, the governor to the knob linkage is rotated at this time and switchs opening, and continues to rotate the governor, and whether detection wheel
It rotates backward, if wheel is motionless, needs further to investigate connection line and electrical fault；After detection, described in rotation
Governor is switched to the knob linkage and is closed.
8. electric vehicle fault detection method according to claim 7, which is characterized in that when voltmeter in use, by institute
It states electric vehicle fault detect instrument to disconnect with the electric vehicle controller, and the detection converter is threaded to one grade
Position carries out the detection of 5V~100V voltages using the positive jack, the cathode jack that are arranged on measure traverse line and the instrument housing,
The anode jack and cathode jack electrical connection corresponding with the voltage display.
9. electric vehicle fault detection method according to claim 8, which is characterized in that in step e, the E-Gas
Supply voltage is 5V~15V.
10. electric vehicle fault detection method according to claim 9, which is characterized in that in step f, the electronics oil
Voltage is 0V~4.8V when door speed change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852029.0A CN108646724A (en) | 2018-07-30 | 2018-07-30 | A kind of electric vehicle fault detect instrument and fault detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852029.0A CN108646724A (en) | 2018-07-30 | 2018-07-30 | A kind of electric vehicle fault detect instrument and fault detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108646724A true CN108646724A (en) | 2018-10-12 |
Family
ID=63760539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810852029.0A Withdrawn CN108646724A (en) | 2018-07-30 | 2018-07-30 | A kind of electric vehicle fault detect instrument and fault detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108646724A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982545A (en) * | 2021-03-04 | 2021-06-18 | 上海三一重机股份有限公司 | Gear fault detection method and device and engineering machinery |
| CN113093712A (en) * | 2021-04-08 | 2021-07-09 | 重庆理工大学 | Active vehicle-mounted running state monitoring and fault forecasting system for automobile transmission system |
-
2018
- 2018-07-30 CN CN201810852029.0A patent/CN108646724A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982545A (en) * | 2021-03-04 | 2021-06-18 | 上海三一重机股份有限公司 | Gear fault detection method and device and engineering machinery |
| CN113093712A (en) * | 2021-04-08 | 2021-07-09 | 重庆理工大学 | Active vehicle-mounted running state monitoring and fault forecasting system for automobile transmission system |
| CN113093712B (en) * | 2021-04-08 | 2023-08-15 | 重庆理工大学 | Active vehicle transmission system on-vehicle running state monitoring and fault forecasting system |
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Application publication date: 20181012 |