One-driving-four ECU flash wiring harness
By designing a one-to-one four ECU brushing wire harness, using the electrical connection between the four-way brushing wire and the ECU connector, the problems of waste of resources, low efficiency and high cost in the existing ECU brushing technology are solved, and the four groups of ECUs are realized. Efficient flash writing and support for multi-type ECUs.
Patent Information
- Application Number
- CN202421218687.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The existing ECU brushing technology has problems such as waste of resources, low efficiency, high cost and low brushing efficiency, especially when brushing different types of ECUs and batch brushing.
A one-to-one four ECU brush writing wiring harness is designed, including four-way brush writing lines and 4 sets of ECU connectors. Through the electrical connection between the key switch and the relay, the simultaneous brushing of four sets of ECUs of the same type is realized.
It realizes efficient writing of four groups of ECUs, reduces resource waste and costs, improves writing efficiency, and supports writing writing of multiple types of ECUs.
Smart Images
Figure CN222483927U_ABST
Abstract
Description
Technical field:
[0001] The utility model relates to the technical field of wire harnesses, and more specifically to a one-to-four ECU flashing wire harness. Background technology:
[0002] ECU is an electronic control unit. In the common rail injection system, ECU receives signals from various sensors and uses the solenoid valve on the injector to allow diesel to spray the correct amount of fuel at the correct injection point with the correct injection pressure, ensuring the best combustion ratio, atomization and ignition time of the diesel engine, as well as good economy and minimum pollution emissions. At present, ECU flashing generally uses the engine wiring harness or a special single flashing wiring harness to flash data directly, and the main problems are as follows: 1. When technicians flash different types of ECUs, they need to replace the entire different wiring harness, which wastes resources and is inefficient; 2. When the engine assembly flashing station flashes the ECU, one device and wiring harness can only flash one ECU at a time, which is costly and inefficient; 3. After-sales service personnel can only flash the ECU on the whole vehicle, or disassemble the ECU and bring it back to the factory for flashing. When batch problems occur, only one ECU can be flashed at a time, which is inefficient. Utility model content:
[0003] The purpose of the utility model is to provide a one-to-four ECU flashing harness to address the deficiencies of the prior art. The one-to-four ECU flashing harness has simple flashing operation and can realize flashing of four groups of ECUs with high efficiency.
[0004] A one-to-four ECU flashing harness comprises four flashing wires and four groups of ECU connectors, wherein the four flashing wires comprise a first harness, wherein a first interface, a second interface and a third interface are electrically connected to the first harness respectively, a key switch is electrically connected to the first harness between the first interface and the second interface, and a relay is electrically connected to the first harness between the second interface and the third interface;
[0005] The ECU connector includes a second wiring harness, and the second wiring harness is electrically connected to a fourth interface and a fifth interface respectively;
[0006] The first interface of the four-way flashing line is connected to the power supply interface of the power supply, the second interface is connected to the socket of the 4-way CAN box, and the third interface is connected to the fourth interface on the ECU connector; the fifth interface of the ECU connector is respectively connected to 4 groups of ECUs of the same type, and the four-way flashing line flashes the 4 groups of ECUs of the same type at the same time.
[0007] Preferably, the first interface on the four-way flashing line adopts a power interface, the second interface adopts a DB9 female interface, and the relay and the key switch are electrically connected to the first wiring harness through lines respectively.
[0008] Preferably, there is one first interface on the four-way flashing line, four second interfaces and four third interfaces respectively, and the second interfaces on the four-way flashing lines are respectively plugged into the sockets of the 4-way CAN box; there is only one fourth interface and one fifth interface on the ECU connector respectively, and the third interface on the four-way flashing line is respectively connected to the fourth interface on the four groups of ECU connectors.
[0009] Preferably, the power supply adopts a stabilized DC power supply and a battery, and the voltage is 9 to 36V.
[0010] Preferably, the second wiring harness on the ECU connector consists of a power line, a key switch line, a CAN high line and a CAN low line.
[0011] The beneficial effects of the utility model are:
[0012] 1. The ECU flashing harness is divided into two sections, including four flashing lines and four ECU connectors. It has a simple design, low cost, easy to carry, and multiple power supply methods. It can meet the flashing of various types of ECUs, and can flash a large number of items at one time, thus improving the flashing efficiency.
[0013] 2. When technicians flash different types of ECUs, they only need to replace the ECU connector instead of the entire wiring harness. This makes the operation simple, reduces resource waste, and has strong versatility.
[0014] 3. When the engine assembly flashing station flashes the ECU, based on the original equipment, one device and wiring harness can flash 4 ECUs at a time, reducing costs and improving production efficiency;
[0015] 4. When after-sales service personnel flash the ECU on the whole vehicle, they do not need to go through the engine harness. They can directly use this ECU flash harness to connect to the battery or stabilized power supply to flash the ECU. When batch problems occur, 4 ECUs can be flashed at a time, which is efficient and low cost. Only partial changes to the ECU connection port are required to meet different types of ECU flashing. Description of the drawings:
[0016] Figure 1 This is a schematic diagram of the structure of the four-way writing line in the utility model;
[0017] Figure 2 It is a structural schematic diagram of the ECU connector in the utility model.
[0018] In the figure: 10, four-way flashing line; 20, ECU connector; 1, first interface; 2, key switch; 3, second interface; 4, relay; 5, third interface; 6, fourth interface; 7, fifth interface; 8, first wiring harness; 9, second wiring harness. Specific implementation method:
[0019] Example: See Figure 1 , 2 As shown, a one-to-four ECU flashing cable includes four flashing cables 10 and four groups of ECU connectors 20;
[0020] See Figure 1 As shown, the four-way flashing line 10 includes a first interface 1, a second interface 3 and a third interface 5; the first interface 1 is connected to the power supply interface of the power supply as a power interface, the second interface 3 is connected to the 4-way CAN box using a DB9 female interface, and the third interface 5 is used as the connection port at the last end. Figure 2 As shown, it can be matched and connected with the fourth interface 6 on 4 groups of ECU connectors 10; the fifth interface 7 of the ECU connector 20 is respectively connected to 4 groups of ECUs of the same type. After the four-way flashing line 10 is connected to the 4-way CAN box and the 4-post ECU connector 20, the 4-way CAN box connection line is connected to a computer or a universal diagnostic instrument, so that 4 groups of ECUs of the same type can be flashed at the same time, which is convenient to use.
[0021] See Figure 1 As shown, the four-way writing line 10 is provided with a first wiring harness 8, and the first wiring harness 8 is a carrier for electrically connecting the first interface 1, the second interface 3 and the third interface 5; wherein the first interface 1, the second interface 3 and the third interface 5 are not limited to the following Figure 1 The interface type shown can be selected according to different needs;
[0022] See Figure 1 As shown, the first wiring harness 8 is electrically connected to a key switch 2 through the wiring harness, and the function of the key switch 2 is to control the power-on status of the ECUs in a one-to-four ECU flashing wiring harness through a switch;
[0023] See Figure 1 As shown, the first wiring harness 8 is electrically connected to a relay 4 through the wiring harness. The function of the relay 4 is to simulate the normal working environment of the vehicle and to protect the ECU.
[0024] Specifically, the first interface 1 is arranged at the beginning of the first wiring harness 8, so as to facilitate the connection of the power supply to the ECU, and the power supply adopts a stabilized DC power supply and a battery, and the voltage is 9-36V; there is no need to connect to the engine wiring harness, so the efficiency of the ECU flashing work is improved; and the after-sales service personnel outside can directly flash the ECU by connecting to the battery power supply, which improves the market maintenance efficiency and reduces the cost;
[0025] See Figure 2 As shown, the ECU connector 20 is provided with a second wiring harness 9, which is a carrier of the fourth interface 6 and the fifth interface 7, wherein the fourth interface 6 and the fifth interface 7 are not limited to the following. Figure 2 The interface type shown can be selected according to different needs;
[0026] Specifically, the second wiring harness 9 is composed of a power line, a key switch line, a CAN high line and a CAN low line. The second section of the wiring harness 9 only retains the positive and negative power lines, the key switch line, the CAN high line, and the CAN low line. According to the different pin definitions of different ECUs, different types of ECU flashing can be achieved by changing the interface position.
[0027] The embodiments are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art may modify the embodiments without violating the spirit and scope of the present invention, and therefore the scope of protection of the present invention shall be as set forth in the claims of the present invention.
Claims
1. A one-to-four ECU flashing wiring harness, comprising four flashing wires (10) and four groups of ECU connectors (20), wherein the four flashing wires (10) include a first wiring harness (8), characterized in that: The first wiring harness (8) is electrically connected to the first interface (1), the second interface (3) and the third interface (5), respectively; the first wiring harness (8) between the first interface (1) and the second interface (3) is electrically connected to the key switch (2); and the first wiring harness (8) between the second interface (3) and the third interface (5) is electrically connected to the relay (4); The ECU connector (20) comprises a second wiring harness (9), and the second wiring harness (9) is electrically connected to a fourth interface (6) and a fifth interface (7) respectively; The first interface (1) of the four-way flashing line (10) is connected to the power supply interface of the power supply, the second interface (3) is connected to the socket of the 4-way CAN box, and the third interface (5) is connected to the fourth interface (6) on the ECU connector (20); the fifth interface (7) of the ECU connector (20) is respectively connected to four groups of ECUs of the same type, and the four-way flashing line (10) flashes the four groups of ECUs of the same type simultaneously.
2. The one-to-four ECU flashing harness according to claim 1 is characterized in that: The first interface (1) on the four-way flashing line (10) adopts a power interface, the second interface (3) adopts a DB9 female interface, and the relay (4) and the key switch (2) are respectively electrically connected to the first wiring harness (8) through lines.
3. The one-to-four ECU flashing harness according to claim 2 is characterized in that: The four-way flashing line (10) has one first interface (1), and the second interface (3) and the third interface (5) are respectively provided with four. The second interfaces (3) on the four-way flashing line (10) are respectively plugged into the sockets of the 4-way CAN box; the fourth interface (6) and the fifth interface (7) on the ECU connector (20) are respectively provided with only one, and the third interface (5) on the four-way flashing line (10) is respectively connected to the fourth interfaces (6) on the four groups of ECU connectors (20).
4. The one-to-four ECU flashing harness according to claim 1 is characterized in that: The power supply adopts a voltage-stabilized DC power supply and a battery, and the voltage is 9-36V.
5. The one-to-four ECU flashing harness according to claim 1 is characterized by: The second wiring harness (9) on the ECU connector (20) is composed of a power line, a key switch line, a CAN high line and a CAN low line.