Marine engine electronic control unit function verification device

Abstract

The utility model discloses a function verification device for an electric control unit of a marine engine. The function verification device comprises a power supply unit, a power supply switch, a T15 switch, a starting switch, a neutral gear switch, an electric control unit joint, an instrument joint, an OBD joint and a prompt unit. During actual use, the electric control unit connector is connected with an electric control unit, the instrument connector is connected with an instrument, the OBD connector is connected with a vehicle-mounted diagnostic system, the power switch, the T15 switch, the starting switch and / or the neutral gear switch are closed according to verification requirements, and the electric control unit operates after receiving signals through the electric control unit connector. The engine electronic control unit outputs corresponding electric signals to the electric control unit connector, the electric control unit connector transmits the corresponding signals to the prompting unit, and the prompting unit gives out corresponding prompts to indicate verification results of the starting function and the pre-oil-supply function of the engine electronic control unit. Therefore, the engine electronic control unit function verification device can verify the function of the engine electronic control unit, and is simple to operate, simple in structure, low in cost and easy to implement.

Description

TECHNICAL FIELD

[0001] The utility model relates to engine technical field especially relates to a marine engine electronic control unit function verification device. BACKGROUND

[0002] Before the marine engine electronic control unit leaves factory, the function of the engine electronic control unit needs to be detected, such as verifying the starting function and pre-oil supply function of the engine electronic control unit, whether normal.

[0003] In the prior art, the engine electronic control unit is usually connected to a special test seat or on the engine to verify the related functions of the engine electronic control unit, although the function verification of the engine electronic control unit before leaving factory is completed, there are certain problems, such as: the cost of the electronic control unit function test seat is high, which increases the manufacturing cost of the engine. UTILITY MODEL CONTENT

[0004] In view of the above problems, the technical problem to be solved by the utility model is to provide a marine engine electronic control unit function verification device which can complete the function test verification of the marine engine electronic control unit and has the advantages of simple structure, low cost and simple operation.

[0005] To solve the above technical problems, the technical scheme of the utility model is:

[0006] A marine engine electronic control unit function verification device, comprising a power supply unit, a power switch, a T15 switch, a starting switch, a neutral switch, an electronic control unit connector, an instrument connector, an OBD connector and a prompt unit, the electronic control unit connector is used for electrically connecting with the electronic control unit to be tested, the instrument connector is used for electrically connecting with the instrument, and the OBD connector is used for electrically connecting with the on-board diagnostic system; the output end of the power supply unit is electrically connected with one end of the power switch, the other end of the power switch is respectively electrically connected with one end of the T15 switch, one end of the starting switch, the power supply end of the electronic control unit connector, the power supply end of the instrument connector and the power supply end of the OBD connector; the other end of the T15 switch is electrically connected with the T15 pin of the electronic control unit connector; the other end of the starting switch is electrically connected with the starting pin of the electronic control unit connector; one end of the neutral switch is electrically connected with the neutral pin of the electronic control unit connector, and the other end of the neutral switch is grounded; the communication end of the electronic control unit connector is respectively electrically connected with the communication end of the instrument connector and the communication end of the OBD connector; the flashing end of the electronic control unit connector is electrically connected with the flashing end of the OBD connector; and the prompt unit is respectively electrically connected with the starting pin and the pre-oil supply pin of the electronic control unit connector.

[0007] Preferably, the device further comprises a water-in-oil joint, which is electrically connected with the electric control unit joint and a water-in-oil sensor, respectively.

[0008] Preferably, the device further comprises an oil drain switch, one end of which is electrically connected with an oil drain pin of the electric control unit joint, and the other end of which is grounded.

[0009] Preferably, the power supply unit comprises a transformer and a power plug, one side of the transformer is electrically connected with the power plug, the positive electrode of the secondary side of the transformer is electrically connected with one end of the power switch, and the negative electrode of the secondary side of the transformer is grounded.

[0010] Preferably, the power supply unit comprises a charging battery and a power plug, the charging battery is electrically connected with the power plug.

[0011] Preferably, the prompt unit comprises a red indicator light and a green indicator light, one end of the red indicator light is electrically connected with a start pin of the electric control unit joint, one end of the green indicator light is electrically connected with a pre-oil supply pin of the electric control unit joint, and the other end of the red indicator light and the other end of the green indicator light are grounded.

[0012] Preferably, the prompt unit comprises a first loudspeaker and a second loudspeaker, the first loudspeaker is electrically connected with a start pin of the electric control unit joint, and the second loudspeaker is electrically connected with a pre-oil supply pin of the electric control unit joint.

[0013] Preferably, the other end of the T15 switch is further electrically connected with a T15 pin of the instrument joint, and the other end of the start switch is further electrically connected with a start pin of the instrument joint.

[0014] Preferably, the device comprises a shell, the power supply unit, the power switch, the T15 switch, the start switch, the neutral switch, the electric control unit joint, the instrument joint, the OBD joint and the prompt unit are arranged on the shell, respectively.

[0015] Preferably, the shell is made of insulating material.

[0016] After the above technical scheme is adopted, the device has the following beneficial effects:

[0017] The utility model discloses a marine engine electronic control unit function verification equipment, including power unit, power switch, T15 switch, starting switch, neutral switch, electronic control unit connector, instrument connector, OBD connector and prompt unit, electronic control unit connector is used for with the electronic control unit of waiting for checking electricity connection, instrument connector is used for with the electricity connection of instrument, OBD connector is used for with the electricity connection of on -vehicle diagnosis system, the output of power unit is connected with one end of power switch, and power switch is connected with T15 switch, starting switch, electronic control unit connector, instrument connector and OBD connector electricity respectively, T15 switch, starting switch, neutral switch, instrument connector, OBD connector and prompt unit are connected with electronic control unit connector electricity respectively. When actually using, connect electronic control unit connector with engine electronic control unit, connect instrument connector with instrument, connect OBD connector with on -vehicle diagnosis system, according to the need of verification, close power switch, T15 switch, starting switch and / or neutral switch, and after the internal operation of electronic control unit when receiving the signal through electronic control unit connector, its output corresponding electric signal to electronic control unit connector, and electronic control unit connector then transmits corresponding signal to prompt unit, and prompt unit issues corresponding prompt, and makes the staff conveniently, quickly observes the engine electronic control unit function of being verified, whether can realize. It can be seen that the utility model can realize the verification of engine electronic control unit function, and simple operation, simple structure, low in cost, easy to realize. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the principle block diagram of marine engine electronic control unit function verification equipment in the utility model,

[0019] In the drawing: J1-electronic control unit connector, J2-instrument connector, J3-OBD connector, J4-oil has water connector, S1-power switch, S2-neutral switch, S3-oil drain switch, LED_G-green indicator lamp, LED_R-red indicator lamp, T50-starting switch. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is combined with the drawing and example, and the utility model is further detailed. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0021] It should be noted that, in the description of the utility model, the direction or position relation of the terms "up", "down", "left", "right", "inner", "outer" and the like is based on the direction or position relation shown in the drawing, which is only for the convenience of description, and is not indicative or implied that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0022] Moreover, it needs to be explained that, in the description of the utility model, unless another explicit provision and limitation, the term "installation", "connection", "connect" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication. For the person skilled in the art, the above-mentioned term can be understood according to the specific meaning in the utility model.

[0023] As Figure 1 The marine engine electronic control unit function verification device shown in the figure, including power unit, power switch S1, T15 switch, starting switch T50, neutral switch S2, electronic control unit connector J1, instrument connector J2, OBD connector J3, prompting unit, water in oil connector J4 and oil drain switch S3, power unit is used to provide working voltage, electronic control unit connector J1 is used to be electrically connected with the electronic control unit to be tested, instrument connector J2 is used to be electrically connected with the instrument, OBD connector J3 is used to be electrically connected with the on-board diagnostic system.

[0024] As Figure 1 The output end of the power unit is electrically connected with one end of the power switch S1, and the other end of the power switch S1 is respectively electrically connected with one end of the T15 switch, one end of the starting switch T50, the power end of the electronic control unit connector J1, the power end of the instrument connector J2 and the power end of the OBD connector J3, wherein the power end specifically includes +24V pin and GND pin, and the power switch S1 is used to control the power switch S1 of the whole device.

[0025] The power unit in the embodiment includes a transformer and a power plug, the primary side of the transformer is electrically connected with the power plug, the positive electrode of the secondary side of the transformer is electrically connected with one end of the power switch S1, the negative electrode of the secondary side of the transformer is grounded GND, and the power plug is externally connected with 220V mains. Wherein the transformer is used for voltage transformation, to ensure that the utility model can operate normally, the transformer is used for converting 220V alternating current into 24V direct current, the transformer shell is insulated and non-conductive, and the reliability is high.

[0026] As Figure 1 The other end of the T15 switch is electrically connected with the T15 pin of the electronic control unit connector J1, and the other end of the T15 switch is also electrically connected with the T15 pin of the instrument connector J2 in the embodiment. The other end of the starting switch T50 is electrically connected with the starting pin (T50 pin) of the electronic control unit connector J1, and the other end of the starting switch T50 is also electrically connected with the starting pin (T50 pin) of the instrument connector J2 in the embodiment. One end of the neutral switch S2 is electrically connected with the neutral pin of the electronic control unit connector J1, and the other end of the neutral switch S2 is grounded GND.

[0027] AsFigure 1 As shown, the communication terminals of the electronic control unit (ECU) connector J1 are electrically connected to the communication terminals of the instrument connector J2 and the OBD connector J3, respectively; the communication terminals include a CANH pin and a CANL pin. After the instrument connector J2 is connected to the instrument, the ECU can communicate with the instrument through the ECU connector J1 and the instrument connector J2 to transmit CAN messages.

[0028] like Figure 1 As shown, the writing terminal of the electronic control unit (ECU) connector J1 is electrically connected to the writing terminal of the OBD connector J3; the writing terminal includes writing CANH pins and writing CANL pins. After the OBD connector J3 is connected to the on-board diagnostic system (OBD), the ECU can communicate with the OBD system through the ECU connector J1 and the OBD connector J3, transmitting CAN messages. The OBD system can calibrate and write data to the ECU through the writing terminal.

[0029] like Figure 1 As shown, the indicator unit is electrically connected to the start pin and pre-lubrication pin of the electronic control unit connector J1, respectively. In this embodiment, the indicator unit includes a red indicator LED_R and a green indicator LED_G. One end of the red indicator LED_R is electrically connected to the start pin of the electronic control unit connector J1, and one end of the green indicator LED_G is electrically connected to the pre-lubrication pin of the electronic control unit connector J1. The other end of the red indicator LED_R is grounded to GND, and the other end of the green indicator LED_G is grounded to GND.

[0030] like Figure 1 As shown, the water-in-oil connector J4 is electrically connected to the electronic control unit connector J1 and the water-in-oil sensor, respectively. Specifically, the water-in-oil connector J4 is electrically connected to the +24V pin, GND pin, and water-in-oil pin of the electronic control unit connector J1. When the water-in-oil sensor comes into contact with water, the water-in-oil connector J4 inputs a low level of no more than 1.41V to the water-in-oil pin, meaning the electronic control unit connector J1 inputs a low level to the electronic control unit. When the water-in-oil sensor comes into contact with air or oil, the water-in-oil connector J4 inputs a high level of greater than 4.6V to the water-in-oil pin, meaning the electronic control unit connector J1 inputs a high level to the electronic control unit. The internal logic of the electronic control unit is that a low level triggers an alarm, and a high level does not trigger an alarm. The electronic control unit transmits this logic in the form of a CAN message to the instrument connector J2 through the communication CANH pin and communication CANL pin. The instrument connector J2 then transmits it to the instrument, and the instrument triggers an alarm, thus verifying the water-in-oil detection alarm function of the electronic control unit.

[0031] like Figure 1As shown, one end of the oil drain switch S3 is electrically connected to the oil drain pin of the electronic control unit connector J1, and the other end of the oil drain switch S3 is grounded to GND. This utility model can verify whether the function of the oil drain switch of the electronic control unit is normal. In addition, the working principle of engine oil drain is to utilize the function of the oil pre-supply pump, and through the three-way valve, rotate the three-way valve to the drain opening side to drain the dirty engine oil from the engine oil pan.

[0032] The specific verification steps are as follows: close the power switch S1, close the T15 switch, open the T50 switch, close the oil drain switch S3, and the green indicator light LED_G will light up, indicating that the oil drain switch S3 is functioning normally; however, it should be noted that the T50 switch and the oil drain switch cannot be opened at the same time.

[0033] like Figure 1 As shown, when using the marine engine electronic control unit function verification equipment of this utility model, connect the electronic control unit connector J1 to the electronic control unit, connect the instrument connector J2 to the instrument, connect the OBD connector J3 to the vehicle diagnostic system, and plug in the power plug.

[0034] When the power switch S1 is closed, the power supply terminal of the control unit connector J1 is energized, and all pins of the control unit connector J1 work normally. When the power switch S1 and switch T15 are closed at the same time, 24V is input to pin T15 of the control unit connector J1.

[0035] When the power switch S1, switch T15, start switch T50, and neutral switch S2 (assuming the neutral switch S2 and pre-fuel function of the electronic control unit are enabled) are closed simultaneously, if the green indicator light LED_G illuminates for 35 seconds and then the red indicator light LED_R illuminates, and the neutral switch S2 is turned off, neither the green indicator light LED_G nor the red indicator light LED_R will illuminate. This indicates that the pre-fuel function, neutral switch S2, and start function of the engine electronic control unit are normal. Otherwise, one of them is not normal.

[0036] Because the start pin of instrument connector J2 is connected in parallel after the start switch T50, and the T15 pin of instrument connector J2 is connected in parallel after switch T15 via a wire, instrument connector J2 is connected to the corresponding marine engine instrument, which can also verify whether the power button and start function of this instrument are normal. Specifically: the instrument power button and the T15 pin of instrument connector J2 are connected internally to the instrument, and the instrument start button and the start pin of instrument connector J2 are connected. When the power switch S1 and the instrument power switch S1 are pressed, the instrument is powered on. At the same time, the instrument start button and the neutral switch S2 are pressed. If the green indicator light LED_G lights up for 35 seconds and then the red indicator light LED_R lights up, it indicates that the start function of the instrument is normal. Of course, it is understandable that the number of pins on instrument connector J2 can be changed according to the specific instrument type.

[0037] The power unit of the utility model is not limited to the above, the power unit can also include a rechargeable battery and a power plug, the rechargeable battery is electrically connected to one end of the power plug. After using the rechargeable battery, the utility model can be conveniently carried, and use is more convenient.

[0038] The prompt unit in the utility model is not limited to the above, the prompt unit includes a first speaker and a second speaker, the first speaker is electrically connected to the start pin of the electric control unit connector J1, and the second speaker is electrically connected to the pre-oil supply pin of the electric control unit connector J1. The first speaker and the second speaker can be set to produce different sounds, and the verification result can be prompted from the perspective of hearing.

[0039] The marine engine electric control unit function verification equipment of the utility model further includes a shell, the power unit, the power switch S1, the T15 switch, the start switch T50, the neutral switch S2, the electric control unit connector J1, the instrument connector J2, the OBD connector J3 and the prompt unit are arranged on the shell. In a preferred scheme, the shell is made of insulating material, which improves the safety of operation. The utility model is provided with a shell, and use can be conveniently managed.

[0040] In summary, the utility model can test and verify the pre-oil supply function and the start function of the electric control unit, simulate the pre-oil supply and start function through the on-off of different color indicator lights, and the specific implementation is as follows: when the start switch T50 is turned off, the electric control unit has a pre-oil supply function and the pre-oil supply logic is calibrated in advance (assuming that the logic is that, in order to protect the engine, 30s of pre-oil supply is performed before starting, and then the start pin outputs voltage), the electric control unit pre-oil supply control pin has voltage output, the on-off of the green indicator light LED_G simulates whether the electric control unit pre-oil supply function is normal, after 30s of pre-oil supply, the electric control unit start control pin has voltage output, and the on-off of the red indicator light LED_R simulates whether the electric control unit start function is normal; data of the electric control unit is written and calibrated; whether the instrument and the electric control unit can normally communicate and whether the start button of the instrument is normal are verified; other functions of the electric control unit can be verified by using the same principle.

[0041] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A functional verification device for a marine engine electronic control unit, characterized in that, It includes a power supply unit, a power switch, a T15 switch, a start switch, a neutral switch, an electronic control unit connector, an instrument connector, an OBD connector, and a prompting unit. The electronic control unit connector is used to electrically connect to the electronic control unit under test, the instrument connector is used to electrically connect to the instrument, and the OBD connector is used to electrically connect to the on-board diagnostic system. The output terminal of the power supply unit is electrically connected to one end of the power switch, and the other end of the power switch is electrically connected to one end of the T15 switch, one end of the start switch, the power terminal of the electronic control unit connector, the power terminal of the instrument connector, and the power terminal of the OBD connector. The other end of the T15 switch is electrically connected to the T15 pin of the electrical control unit connector; The other end of the start switch is electrically connected to the start pin of the electronic control unit connector; One end of the neutral switch is electrically connected to the neutral pin of the electronic control unit connector, and the other end of the neutral switch is grounded. The communication terminal of the electronic control unit connector is electrically connected to the communication terminals of the instrument connector and the OBD connector, respectively. The writing end of the electronic control unit connector is electrically connected to the writing end of the OBD connector. The prompting unit is electrically connected to the start pin and pre-lubrication pin of the electronic control unit connector, respectively.

2. The marine engine electronic control unit functional verification equipment according to claim 1, characterized in that, The device also includes a water-in-oil connector, which is electrically connected to the electrical control unit connector and the oil-in-oil sensor, respectively.

3. The marine engine electronic control unit functional verification equipment according to claim 1, characterized in that, The device also includes an oil drain switch, one end of which is electrically connected to the oil drain pin of the electronic control unit connector, and the other end of which is grounded.

4. The marine engine electronic control unit functional verification equipment according to claim 1, characterized in that, The power supply unit includes a transformer and a power plug. The primary side of the transformer is electrically connected to the power plug, the positive terminal of the secondary side of the transformer is electrically connected to one end of the power switch, and the negative terminal of the secondary side of the transformer is grounded.

5. The marine engine electronic control unit functional verification equipment according to claim 1, characterized in that, The power unit includes a rechargeable battery and a power plug, and the rechargeable battery is electrically connected to the power plug.

6. The marine engine electronic control unit functional verification equipment according to claim 1, characterized in that, The indicator unit includes a red indicator light and a green indicator light. One end of the red indicator light is electrically connected to the start pin of the electronic control unit connector, and one end of the green indicator light is electrically connected to the pre-lubrication pin of the electronic control unit connector. The other ends of the red indicator light and the other ends of the green indicator light are grounded.

7. The marine engine electronic control unit functional verification equipment according to claim 1, characterized in that, The prompting unit includes a first speaker and a second speaker. The first speaker is electrically connected to the start pin of the electronic control unit connector, and the second speaker is electrically connected to the pre-lubrication pin of the electronic control unit connector.

8. The marine engine electronic control unit functional verification equipment according to claim 1, characterized in that, The other end of the T15 switch is also electrically connected to the T15 pin of the instrument connector; the other end of the start switch is also electrically connected to the start pin of the instrument connector.

9. The marine engine electronic control unit functional verification equipment according to any one of claims 1 to 8, characterized in that, The device includes a housing, on which the power supply unit, the power switch, the T15 switch, the start switch, the neutral switch, the electronic control unit connector, the instrument connector, the OBD connector, and the prompting unit are respectively disposed.

10. The marine engine electronic control unit functional verification equipment according to claim 9, characterized in that, The housing is made of insulating material.

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