CN202815576U - An auxiliary test box for electrical function test of an ECU - Google Patents

An auxiliary test box for electrical function test of an ECU Download PDF

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Publication number
CN202815576U
CN202815576U CN 201220366152 CN201220366152U CN202815576U CN 202815576 U CN202815576 U CN 202815576U CN 201220366152 CN201220366152 CN 201220366152 CN 201220366152 U CN201220366152 U CN 201220366152U CN 202815576 U CN202815576 U CN 202815576U
Authority
CN
China
Prior art keywords
ecu
wire harness
socket
test
additional
Prior art date
Application number
CN 201220366152
Other languages
Chinese (zh)
Inventor
张良
张立峰
高利华
赵铁林
石太佳
Original Assignee
长城汽车股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 长城汽车股份有限公司 filed Critical 长城汽车股份有限公司
Priority to CN 201220366152 priority Critical patent/CN202815576U/en
Application granted granted Critical
Publication of CN202815576U publication Critical patent/CN202815576U/en

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Abstract

The utility model relates to an auxiliary test box for electrical function test of an ECU. The auxiliary test box comprises a box body and two additional wiring harnesses; the box body is provided with two additional wiring harness sockets and a plurality of switches which are connected between the two additional wiring harnesses and are corresponding to pins of the ECU respectively; the first additional wiring harness socket is connected with the ECU through the first additional wiring harness and the second additional wiring harness socket is connected with an ECU socket on a vehicle wiring harness through the second additional wiring harness; and each pin of the ECU is electrically connected with a corresponding terminal of the ECU socket on the vehicle wiring harness through a wire in the first additional wiring harness, a corresponding switch on the box body and a wire in the second additional wiring harness. When the auxiliary test box is used for test of the ECU, the cutting of vehicle wiring harness is not required, so that the integrity of the vehicle wiring harness system is maintained and test efficiency is improved.

Description

The ancillary test case that is used for the test of ECU electric function

Technical field

The utility model relates to a kind of ancillary test case that uses when with tester automobile ECU being carried out the electric function test, belong to automobile technical field.

Background technology

When vehicle condition ECU is carried out functional test, generally be that diagnostic equipment is connected on the diagnostics port of vehicle, directly read the diagnostic message that ECU sends through bus by diagnostic equipment, these information are defined in the development phase by ECU developer.But for undefined ECU fault in the ECU performance history, diagnostic equipment can't read its failure message (non-bus failure information).In addition, the ECU that does not do the diagnosis exploitation also can't utilize the method to carry out functional diagnosis.At present, the method of obtaining the non-bus failure information of ECU is after the car load wire harness that will link to each other with ECU cuts off, tester accessed in the car load harness system detect, so just will destroy inevitably the integrality of car load harness system, and detection efficiency is also lower.Therefore, how in the situation that does not affect the car load integrity of wiring harness, testing tool being connected into the car load harness system, realize the quick electric detection to each stitch of ECU, is the present difficult problems that face of relevant technologies personnel.

The utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of ancillary test case for the test of ECU electric function is provided, and in the situation that does not affect the car load integrity of wiring harness, realizes the fast detecting to ECU.

The alleged problem of the utility model realizes with following technical proposals:

A kind of ancillary test case for the test of ECU electric function, it comprises casing and two additional wire harness, be provided with two additional wire harness sockets on the described casing and be connected to a plurality of respectively switches corresponding with each stitch of ECU between the two additional wire harness sockets, the first additional wire harness socket is connected with ECU by the first additional wire harness, the second additional wire harness socket is connected with ECU socket on the car load wire harness by the second additional wire harness, and each stitch of ECU is successively through first wire that adds in the wire harness, on the casing to inductive switch, the corresponding terminal of the ECU socket on wire in the second additional wire harness and the car load wire harness is electrically connected.

Above-mentioned ancillary test case for the test of ECU electric function, the two ends of each switch are provided with calibrating terminal.

Above-mentioned ancillary test case for the test of ECU electric function, the middle part of each calibrating terminal is provided with tester probe jack.

Above-mentioned ancillary test case for the test of ECU electric function, described switch and calibrating terminal are at the tank surface array arrangement.

The utility model is connected in series a switch between each stitch of ECU and car load wire harness, in the time of need to detecting a certain stitch of ECU, only need to disconnect the switch corresponding with this stitch and two probes of tester are connected on switch ends and get final product.Use the utility model that ECU is detected and need not to cut off the car load wire harness, both kept the integrality of car load harness system, improved again detection efficiency.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the chamber cut-away drawing.

Each label is among the figure: 1, casing; 2, the first additional wire harness; 3, car load wire harness; 4, tester; 5, switch; 6, calibrating terminal; 7, probe; 8, the first additional wire harness socket; 9, the second additional wire harness socket; 10, the second additional wire harness; 11, ECU; 12, ECU socket; 13, wire.

Embodiment

Referring to Fig. 1, Fig. 2, the utility model comprises casing 1 and two additional wire harness (the first additional wire harness 2 and the second additional wire harness 10).Be provided with two additional wire harness sockets (the first additional wire harness socket 8 and the second additional wire harness socket 9) and a plurality of switch 5 at casing 1, each switch 5 is corresponding with the stitch of ECU, and its two ends all are electrically connected with a calibrating terminal 6.Switch 5 is connected between two additional wire harness sockets, and the first additional wire harness socket 8 is connected with ECU by the first additional wire harness 2, and the second additional wire harness socket 9 passes through second to be added wire harness 10 and be connected with ECU socket 12 on the car load wire harness 3.

When ECU is detected, the utility model is connected between the ECU socket 12 on ECU and the car load wire harness 3, and each stitch of the ECU successively corresponding terminal that inductive switch 5, second is added the ECU socket 12 on wire and the car load wire harness 3 in the wire harness 10 on a wire in the first additional wire harness 2, the casing 1 is electrically connected.When all switches 5 were all closed, ECU normally was connected with car load wire harness 3.When a certain switch 5 disconnects, be equivalent to wire corresponding to this switch and cut off, this moment, two probes 7 with tester 4 were connected with the calibrating terminal 6 of this switch ends respectively, can be with tester 4 access car load harness system.

Test process:

The first step: disconnect being connected of ECU socket 12 on ECU and the car load wire harness 3, ECU is separated with car load wire harness 3.

Second step: the first additional wire harness 2 is connected between ECU and the first additional wire harness socket 8, and the second additional wire harness 10 is connected between the second ECU socket 12 that adds on wire harness socket 9 and the car load wire harness 3.

Article two, additional wire harness connect complete after, all switches 5 on the closed casing 1 just can realize that ECU is connected with the normal of car load wire harness.Take vehicle power supply line as example: the power lead of the power supply stitch of ECU socket 12 in the second additional wire harness 10 links to each other with the power supply stitch of the second additional wire harness socket 9, the power supply stitch of the second additional wire harness socket 9 is received an end of a switch by casing 1 inside conductor, the other end of this switch links to each other through the power supply stitch of wire with the first additional wire harness socket 8, and the power supply stitch of the first additional wire harness socket 8 again power lead in the first additional wire harness 2 is powered to the power supply stitch of ECU.That is to say that the power path after the access chamber when not accessing chamber is consistent.The switch 5 that only accesses test point (calibrating terminal 6) after the chamber and be used for selecting test loop need not cut off the car load wire harness all at the casing 1 of chamber during test.

The 3rd step: the connecting test instrument is in off-state with the selected switch 5(of two probes 7 access of tester 4) on the calibrating terminal 6 of both sides.

The 4th step: open tester, specifically test, read vehicle ECU electric parameter according to the demonstration result of instrument, judge whether electrical system meets designing requirement.

Claims (4)

1. one kind is used for the ancillary test case that the ECU electric function is tested, it is characterized in that, it comprises casing (1) and two additional wire harness, be provided with two additional wire harness sockets on the described casing (1) and be connected to a plurality of respectively switches (5) corresponding with each stitch of ECU between the two additional wire harness sockets, the first additional wire harness socket (8) is connected with ECU by the first additional wire harness (2), the second additional wire harness socket (9) is connected with ECU socket (12) on the car load wire harness (3) by the second additional wire harness (10), and each stitch of ECU is successively through first wire that adds in the wire harness (2), on the casing (1) to inductive switch (5), the corresponding terminal of the ECU socket (12) on wire in the second additional wire harness (10) and the car load wire harness (3) is electrically connected.
2. described ancillary test case for ECU electric function test according to claim 1 is characterized in that the two ends of each switch (5) are provided with calibrating terminal (6).
3. described ancillary test case for ECU electric function test according to claim 2 is characterized in that the middle part of each calibrating terminal (6) is provided with tester probe jack.
4. described ancillary test case for ECU electric function test according to claim 3 is characterized in that described switch (5) and calibrating terminal (6) are at the tank surface array arrangement.
CN 201220366152 2012-07-27 2012-07-27 An auxiliary test box for electrical function test of an ECU CN202815576U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220366152 CN202815576U (en) 2012-07-27 2012-07-27 An auxiliary test box for electrical function test of an ECU

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220366152 CN202815576U (en) 2012-07-27 2012-07-27 An auxiliary test box for electrical function test of an ECU

Publications (1)

Publication Number Publication Date
CN202815576U true CN202815576U (en) 2013-03-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220366152 CN202815576U (en) 2012-07-27 2012-07-27 An auxiliary test box for electrical function test of an ECU

Country Status (1)

Country Link
CN (1) CN202815576U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106292648A (en) * 2016-11-04 2017-01-04 北京公共交通控股(集团)有限公司 A kind of electric-control system diagnosis case
WO2017143790A1 (en) * 2016-02-24 2017-08-31 王志欣 Automobile electronic control system tester and testing method
CN108121323A (en) * 2016-11-30 2018-06-05 上海汽车集团股份有限公司 Vehicle testing system, method and switching device
CN108535526A (en) * 2018-04-13 2018-09-14 深圳新动力教育科技有限公司 A kind of lossless automobile low-voltage electrical signal measurement apparatus and its application method
CN109085815A (en) * 2018-08-06 2018-12-25 芜湖莫森泰克汽车科技股份有限公司 A kind of vehicle window controller test equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017143790A1 (en) * 2016-02-24 2017-08-31 王志欣 Automobile electronic control system tester and testing method
CN106292648A (en) * 2016-11-04 2017-01-04 北京公共交通控股(集团)有限公司 A kind of electric-control system diagnosis case
CN108121323A (en) * 2016-11-30 2018-06-05 上海汽车集团股份有限公司 Vehicle testing system, method and switching device
CN108535526A (en) * 2018-04-13 2018-09-14 深圳新动力教育科技有限公司 A kind of lossless automobile low-voltage electrical signal measurement apparatus and its application method
CN109085815A (en) * 2018-08-06 2018-12-25 芜湖莫森泰克汽车科技股份有限公司 A kind of vehicle window controller test equipment

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