CN210038761U - EMS flash equipment and system - Google Patents

Abstract

The application relates to EMS (enhanced message service) flashing equipment and an EMS flashing system; the EMS flashing equipment comprises an ECU flashing special wire harness and communication equipment; the ECU flash special wire harness comprises a power supply circuit and a flash communication circuit; one end of the power supply line is used for connecting a power supply source, and the other end of the power supply line is connected with a flash communication line; the first interface of the flash communication line is used for connecting an engine ECU, and the second interface is used for connecting a PC through communication equipment; the flash communication line receives the flash signal transmitted by the PC through the communication equipment and unidirectionally inputs the flash signal to the engine ECU. According to the method and the device, useless items in ECU (electronic control unit) flash engineering can be removed according to the flash hardware equipment requirement, the traditional two-way transmission signal is converted into a one-way flash signal, interference is eliminated, and the flash success rate of the EMS system is improved.

Description

EMS flashing equipment and system

technical field

The present application relates to the technical field of automobile engines, and in particular, to an EMS flashing device and system.

Background technique

In the process of engine research and development test, automobile powertrain failure, and 4S (Automobile Sales Servicshop 4S) shop car maintenance, in order to troubleshoot engine failures, ensure that the engine adapts to different environmental conditions and can run in the best state, engine research and development and after-sales personnel often need to Adjust, update and upgrade various control parameters, and use the corresponding hardware equipment to write these optimized parameters into the engine management system (EMS) in the ECU (Electronic Control Unit, electronic control unit) through the corresponding wiring harness and bench system of the engine model platform. , Engine Management System), so that these parameters can be retained in the EMS system for a long time and control the engine to work according to the preset optimal parameters.

Traditionally used is the engine running harness and auxiliary equipment. This set of equipment corresponds to the engine platform one-to-one. It is not common between different models and platforms. It is mainly used to realize control signal transmission and feedback during engine operation and control the engine. Coordinated operation of various systems; during the implementation process, the inventor found that there are at least the following problems in the traditional technology: the current equipment is not dedicated to ECU flashing, has poor applicability, and is prone to reliability problems such as self-checking sensors or actuator failures.

Utility model content

Based on this, it is necessary to provide an EMS flashing device and system that can improve the reliability of flashing, aiming at the above technical problems.

In order to achieve the above object, on the one hand, an embodiment of the present utility model provides an EMS flashing device, including a dedicated wiring harness for ECU flashing and a communication device;

The special wiring harness for ECU flashing includes a power supply line and a flashing communication line; one end of the power supply line is used to connect the power supply, and the other end is connected to the flashing communication line; the first interface of the flashing communication line is used to connect the engine ECU, and the second interface is used for For connecting to a PC through a communication device;

Among them, the flashing communication line receives the flashing signal transmitted by the PC through the communication device, and inputs the flashing signal to the engine ECU in one direction.

In one of the embodiments, it also includes a power adapter; one end of the power supply line is a power interface;

The input end of the power adapter is used to connect the power supply, and the output end is connected to the power interface.

In one embodiment, the power adapter is a 220V AC-12V DC power adapter.

In one embodiment, the power supply is a power strip.

In one embodiment, the power supply is a regulated power supply; one end of the power supply line is a power interface.

In one embodiment, the power supply is a DC power supply; one end of the power supply line is a power interface.

In one of the embodiments, the DC power source is a 12V car battery.

In one embodiment, the power supply includes a regulated power supply and a DC power supply; one end of the power supply line is a power interface.

In one of the embodiments, the second interface is a CAN interface.

On the one hand, an embodiment of the present invention also provides an EMS flashing system, including a PC, and any one of the above-mentioned EMS flashing devices connected to the PC.

A technical scheme in the above-mentioned technical scheme has the following advantages and beneficial effects:

The dedicated wiring harness for ECU flashing in this application only reserves the ECU interface (ie the first interface), the communication device interface (ie the second interface) and the power supply interface, and each interface is used to connect the ECU and the computer equipment (ie the PC) And power supply equipment, realize one-way input flashing signal, no actuator and sensor self-checking circuit signal feedback and other two-way transmission process, avoid external signal interference, ECU flashing is safe and reliable, and can ensure that the equipment can operate the EMS system normally under the current conditions flash. The present application can remove useless items in the ECU flashing project according to the needs of flashing hardware equipment, convert the traditional two-way transmission signal into a one-way flashing signal, eliminate interference, and improve the success rate of flashing of the EMS system.

Description of drawings

The above and other objects, features and advantages of the present application will become more apparent from a more detailed description of the preferred embodiments of the present application shown in the accompanying drawings. The same reference numerals refer to the same parts throughout the drawings, and the drawings are not intentionally drawn to scale, the emphasis being placed on illustrating the subject matter of the present application.

Figure 1 is a schematic structural diagram of a traditional engine running harness and auxiliary equipment;

2 is a schematic structural diagram of an EMS flashing device in one embodiment;

FIG. 3 is a schematic structural diagram of an EMS flashing device in another embodiment.

Detailed ways

In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the related drawings. Preferred embodiments of the present application are shown in the accompanying drawings. However, the application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It should be noted that when an element is referred to as being "connected" to another element, it can be directly connected to and integrated with the other element, or intervening elements may also be present. The terms "one end," "the other end," and similar expressions, as used herein, are for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the specification of the present application are for the purpose of describing specific embodiments only, and are not intended to limit the present application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The traditional ones in use are the engine wiring harness and auxiliary equipment, as shown in Figure 1, including: 1. Power supply (stabilized power supply/12V battery for vehicles); 2. Engine wiring harness; 3. Engine ECU; 4. Equipment computer 5. Communication equipment. It can be seen from the schematic diagram that the entire system equipment is powered by the power supply; the engine ECU is installed on the engine wiring harness, and the communication equipment connects the wiring harness and the equipment computer. The use process of the whole set of equipment includes: ①installing the engine wiring harness corresponding to the model; ②connecting the power supply, engine ECU, communication equipment, equipment computer and the engine wiring harness to realize the system power supply and CAN communication between the operator equipment computer and the engine ECU; ③brushing Write EMS system data in ECU.

Among them, the above-mentioned starting wiring harness is used to realize the control signal transmission and feedback (two-way transmission signal) during the operation of the engine and to control the coordinated operation of the various systems of the engine. It is necessary to install a regulated power supply or a vehicle battery, install the engine wiring harness and connectors, and many sensors are prone to installation errors; 2. The signal is a two-way transmission signal, and redundant wiring harness relays, sensors and actuators are likely to cause signal interference sources, and program flashing There are many interference factors from engine sensors and wiring harnesses, and the reliability is poor; 3. The environmental applicability is low, the wiring harnesses of different models and platforms cannot be used universally, and special regulated power supply and wiring harnesses are required. The equipment is large and limited to vehicles, engine benches and The use of the production unit site is easily limited by the use of space and equipment conditions. 4. It is inconvenient to move and carry. The whole set of equipment is heavy and its weight is more than 10kg, so it is inconvenient to move and carry.

As mentioned above, the traditional equipment is inconvenient to promote, and seriously affects the work efficiency, which directly leads to the reduction of work efficiency and the increase of production cost. The present application can correspond to the equipment use environment and personnel work requirements, and has the characteristics of safe and reliable work, simple and convenient installation, small and portable appearance, strong environmental adaptability and easy promotion.

In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

In one embodiment, as shown in FIG. 2 , an EMS flashing device is provided, including a dedicated wire harness for ECU flashing;

The special wiring harness for ECU flashing includes a power supply line and a flashing communication line; one end of the power supply line is used to connect the power supply, and the other end is connected to the flashing communication line; the first interface of the flashing communication line is used to connect the engine ECU, and the second interface is used for For connecting PC (Personal Computer) machine through communication equipment;

Among them, the flashing communication line receives the flashing signal transmitted by the PC through the communication device, and inputs the flashing signal to the engine ECU in one direction.

Specifically, the present application provides a convenient flashing device that can meet various conditions of use, including a dedicated wire harness for ECU flashing; the special wire harness can connect the necessary ECU flashing interface to a PC according to the needs of flashing hardware equipment Connection, the corresponding connection of each part of the hardware allows the operator to flash the ECU, thereby realizing one-way signal transmission.

Among them, the special wiring harness for ECU flashing includes a power supply line and a flashing communication line. The power supply line only needs to supply power, and then the ECU and the device computer can communicate with the device computer through the flashing communication line. , to avoid external signal interference, ECU flashing is safe and reliable. The traditional technology uses the engine wiring harness. In actual work, the ECU needs to self-check whether the sensor and the actuator are normal, and the signal is a bidirectional transmission signal; this application can avoid signal interference caused by redundant wiring harness relays, sensors and actuators in the engine wiring harness Source, program flashing is affected by many factors that interfere with engine sensors and wiring harnesses, and then self-check sensors or actuators fail, which can easily lead to problems of inability to communicate and program flashing.

In a specific example, the communication protocol and data transmission method of the dedicated wiring harness for ECU flashing of the present application can be implemented by the engine wiring harness; however, the wiring harness of the present application has a simple structure, which is different from the power supply line, the flashing communication line, and the execution signal line. , feedback signal lines and even traditional wiring harnesses for protection circuits, the special wiring harness for ECU flashing in the present application includes power supply lines and flashing communication lines, which removes useless lines in the flashing process.

It should be noted that the realization of the one-way input brushing signal in this application depends on the wiring harness structure of the special wiring harness for ECU brushing in this application, and the special wiring harness has no feedback signal circuit for other components, so as to realize only transmission in the wiring harness. Flash signal. Specifically, there is no actuator and sensor, no actuator circuit and sensor signal feedback circuit, and thus no actuator and sensor self-test signal feedback.

Further, the workflow of the present application may include: 1. Install the ECU on the corresponding dedicated wiring harness interface for ECU flashing; 2. Connect the wiring harness power interface to the power supply; 3. Connect the wiring harness communication interface to the computer; 4. Turn on the power supply and adjust the output; 5. The computer communicates with the ECU to flash the EMS data.

In a specific embodiment, the power supply is a regulated power supply; one end of the power supply line is a power interface.

In a specific embodiment, the power supply is a DC power supply; one end of the power supply line is a power interface. In one example, the DC power source is a 12V car battery.

In a specific embodiment, the power supply includes a regulated power supply and a DC power supply; one end of the power supply line is a power interface.

Specifically, the present application retains the interface of the regulated power supply and the vehicle battery (12V) power supply equipment, and has no redundant engine sensors and wiring harness connectors, and the installation is simple and convenient. In addition, the application has strong adaptability to the environment, and the application platform of different models can be used for interchangeable flashing work, which is easy to promote.

Above, the present application removes the useless items in ECU flashing (such as protection circuits, various actuators and circuit signals, sensors and circuit signals), changes bidirectional transmission signals into unidirectional flashing signals, eliminates interference, and improves EMS. The success rate of system flashing; and the application is small and portable, without redundant and complicated parts, the volume is greatly reduced, the weight of the whole system (except the equipment computer) can be reduced to less than 1.0kg, the appearance is small and easy to carry, suitable for vehicle R&D departments And after-sales maintenance work.

In one embodiment, as shown in FIG. 3 , an EMS flashing device is provided, including a dedicated wire harness for ECU flashing;

The special wiring harness for ECU flashing includes a power supply line and a flashing communication line; one end of the power supply line is used to connect the power supply, and the other end is connected to the flashing communication line; the first interface of the flashing communication line is used to connect the engine ECU, and the second interface is used for For connecting to a PC through a communication device;

Among them, the flashing communication line receives the flashing signal transmitted by the PC through the communication device, and inputs the flashing signal to the engine ECU in one direction.

In a specific embodiment, it also includes a power adapter; one end of the power supply line is a power interface;

The input end of the power adapter is used to connect the power supply, and the output end is connected to the power interface.

In a specific embodiment, the power adapter is a 220V AC-12V DC power adapter.

In a specific embodiment, the power supply is a power strip.

In a specific embodiment, the second interface is a CAN (Controller Area Network) interface.

Specifically, the present application provides a convenient flashing and writing device that can meet various conditions of use, and the device can include:

1) ECU flashing special wiring harness: according to the needs of flashing hardware equipment, connect the necessary ECU flashing interface to the communication device, select the power supply according to the operator's needs, and connect each part of the hardware correspondingly so that the operator can flash the ECU , to achieve one-way signal transmission;

2) Power adapter: used to convert 220V-AC to 12V-DC to provide power for the system;

Device workflows can include either of the following:

1. Use regulated power supply or 12V DC power supply;

1. Install the ECU on the corresponding wiring harness interface for ECU flashing; 2. Connect the wiring harness power interface to the power supply; 3. Connect the communication CAN interface reserved for the wiring harness to the communication device; 4. Connect the communication device to the computer; 5. , Turn on the power and adjust it to 12V DC output; 6. The computer communicates with the ECU for EMS data flashing.

2. Use the power adapter to supply power;

1. Install the ECU on the corresponding ECU flashing special wiring harness interface; 2. Connect the wiring harness power interface to the output end of the power adapter; 3. Insert the power adapter into the daily power supply socket and other equipment to get power; 4. Reserve the wiring harness The communication CAN interface is connected with the communication equipment; 5. The communication equipment is connected with the computer;

Above, the special wiring harness for ECU flashing in this application is simple and clear, without redundant wiring harness sensors, relays and connectors, only the corresponding ECU interface, communication equipment interface, and power quick-connect interface are reserved for connecting ECU and computer communication equipment. and power supply equipment, realize one-way input of flashing signal, sensorless actuator self-checking process and two-way signal transmission, which can effectively avoid the signal interference of other redundant devices to communication equipment, and ensure that the device can normally perform EMS system flashing under the current conditions. Write.

At the same time, the 220V AC-12V DC small power adapter in this application can directly convert the daily 220V AC power into the 12V DC power required by the equipment, and the voltage and current are stable and reliable, and can directly replace the regulated power supply and vehicle power supply of the original technical solution. Power the system with a 12V battery. In a specific example, the application can add the AC-DC 12V power adapter while retaining the original regulated power supply and vehicle battery (12V) power supply equipment interface, and then can leave the vehicle, engine test bench, 4S shop It can be used in the daily life power supply area, lowering the threshold for equipment use, expanding the equipment use area, and is more practical and easy to promote.

It should be noted that the dedicated wiring harness for ECU flashing in this application can reserve two power supply interfaces, one is the home factory power supply (with the addition of a power adapter), and the other is directly connected to the DC power supply for power supply, the user can Choose according to the working environment.

The application environment has wider applicability. The dedicated wiring harness for ECU flashing can be used alone in engine benches, vehicles, and 4S shops, and can flash the EMS system under the original conditions, which can completely replace the flashing work of the original engine wiring harness. Under the same conditions of the control system , which can realize the data flashing of different models of ECU, and is more secure, reliable and efficient.

Those skilled in the art can understand that the structure shown in FIG. 3 is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the related equipment to which the solution of the present application is applied. Specific devices may include There are more or fewer components than shown in the figures, or some components are combined, or have a different arrangement of components.

The EMS flashing device proposed in this application, by removing useless items in the ECU flashing project, changes the bidirectional transmission signal into a one-way flashing signal (the one-way transmission flashing signal may include optimized engine control parameters), Eliminate interference and improve the success rate of EMS system flashing; compared with traditional flashing equipment, this application is safe and reliable. Based on the special wiring harness for ECU flashing, it can be directly connected to the ECU and the operator's computer through communication equipment. One-way input flashing Write signal, no actuator and sensor self-test circuit signal feedback, avoid external signal interference, ECU flashing is safe and reliable.

The application has strong adaptability to the environment, and the application platform of different models can be used for interchange and flashing work, which is easy to promote. It can be used in the power supply area of daily life without leaving the vehicle, engine test bench, 4S store, etc., lowering the threshold for equipment use, expanding the equipment use area, and being more practical and easy to promote.

In one embodiment, an EMS flashing system is provided, including a PC, and any one of the above-mentioned EMS flashing devices connected to the PC.

It is clear that in practical applications, the device computer can be combined with the EMS flashing device proposed in the present application, so as to realize dedicated ECU flashing. Among them, the ECU dedicated flashing wiring harness can be directly connected to the operator's computer (ie PC) through communication equipment, one-way input flashing signal, no actuator and sensor self-test circuit signal feedback, to avoid external signal interference , ECU flashing is safe and reliable.

The application realizes the one-way input of the flashing signal through the simplified and practical ECU dedicated flashing wiring harness; among them, the volume and mass of the flashing device is reduced to less than 1kg, making the device small and portable, even if it is used with a PC, it is also beneficial to the staff. Carrying and using it improves the work efficiency of personnel; at the same time, adding a power adapter reduces the threshold for the use of EMS system flashing, expands the use area, and reduces the cost of equipment use. However, the device of the present application is simple to install and operate, can meet the needs of more users and different use conditions, and is easy to popularize.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present application, and the descriptions thereof are relatively specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims (10)

1. an EMS brush writing device, is characterized in that, comprises ECU brush writing special wiring harness and communication equipment; The ECU flashing dedicated wiring harness includes a power supply line and a flashing communication line; one end of the power supply line is used to connect a power supply, and the other end is connected to the flashing communication line; the first interface of the flashing communication line is used for Connect to the engine ECU, and the second interface is used to connect to the PC through the communication device; Wherein, the flash writing communication line receives the flash writing signal transmitted by the PC through the communication device, and unidirectionally inputs the flash writing signal to the engine ECU. 2. The EMS flashing device according to claim 1, further comprising a power adapter; one end of the power supply line is a power interface; The input end of the power adapter is used to connect the power supply, and the output end is connected to the power interface. 3. The EMS flashing device according to claim 2, wherein the power adapter is a 220V AC-12VDC power adapter. 4 . The EMS flashing device according to claim 2 , wherein the power supply is a power supply socket. 5 . 5 . The EMS flashing device according to claim 1 , wherein the power supply is a regulated power supply; and one end of the power supply line is a power interface. 6 . 6 . The EMS flashing device according to claim 1 , wherein the power supply is a DC power supply; and one end of the power supply line is a power interface. 7 . 7 . The EMS flashing device according to claim 6 , wherein the DC power source is a 12V car battery. 8 . 8 . The EMS flashing device according to claim 1 , wherein the power supply comprises a regulated power supply and a DC power supply; and one end of the power supply line is a power interface. 9 . 9 . The EMS flashing device according to claim 1 , wherein the second interface is a CAN interface. 10 . 10. An EMS flashing system, characterized in that it comprises a PC, and the EMS flashing device according to any one of claims 1 to 9 connected to the PC.

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