CN213338429U

CN213338429U - Device for detecting vehicle-mounted ECU module before assembly of whole vehicle

Info

Publication number: CN213338429U
Application number: CN202022185732.6U
Authority: CN
Inventors: 刘祥恩; 王国瑞; 王晓龙; 张高鹏; 余文冉; 张帅杰; 李正海; 姚磊
Original assignee: Henan Derry New Energy Automobile Co Ltd
Current assignee: Henan Derry New Energy Automobile Co Ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-06-01
Anticipated expiration: 2030-09-29

Abstract

The invention provides a device for detecting a vehicle-mounted ECU module before the assembly of a whole vehicle, which comprises a power supply, a power switch, a compressor switch indicator lamp, an ECU module, a potentiometer temperature adjusting switch and a compressor speed regulation indicator lamp, wherein the power supply is connected with the power switch; the potentiometer temperature adjusting switch, the ECU module and the compressor speed regulation indicator lamp are connected in series and then connected in parallel with the compressor switch indicator lamp to form a detection circuit, and the power supply supplies power to the detection circuit through the power switch; the utility model discloses can utilize the on-vehicle air conditioner of potentiometre temperature regulation switch simulation to evaporate temperature sensor action, as long as the luminance of compressor speed governing pilot lamp takes place corresponding light and shade change along with the action of potentiometre temperature regulation switch, can judge that the ECU module can normally move, according to this principle, can detect the ECU module in order that convenient before the whole car assembly, avoid appearing taking place the ECU module after the whole car assembly is accomplished and can not normally move, still need dismantle, the problem of maintenance.

Description

Device for detecting vehicle-mounted ECU module before assembly of whole vehicle

Technical Field

The invention relates to the technical field of vehicles, in particular to a device for detecting a vehicle-mounted ECU module before the assembly of a whole vehicle.

Background

At the detection device of current on-vehicle air conditioner, often need whole car assembly, energize for the ECU module, then detect whether normal to air conditioning system's regulating action of ECU, if discover that the ECU module can not adjust on-vehicle air conditioner compressor, then need take apart whole car, overhaul or change the ECU module, work load is big, produce man-hour expense, other problems also appear easily at the dismouting in-process simultaneously.

The control logic of the existing ECU module is shown in fig. 1:

the temperature of the vehicle-mounted air conditioner is regulated through a vehicle-mounted air conditioner temperature regulation switch (usually a knob switch or an electronic key switch is used), and the specific regulation process is as follows: the method comprises the steps that a driver and an occupant press a pressure switch, a power supply (12V) of a vehicle-mounted HVAC (air conditioning system) supplies power to an ECU module through an A/C enable line, the driver and the occupant adjust a vehicle-mounted air conditioner temperature adjusting switch to act on an evaporation temperature sensor, the evaporation temperature sensor feeds back to the ECU module after receiving a temperature adjusting signal of the driver and the occupant, the ECU module receives temperature adjusting information and then controls the pulse width ratio of the output voltage of the ECU module through logic operation, namely the pulse width ratio of the control voltage of the air conditioner compressor output through a PWM (pulse width modulation) rotating speed line, the rotating speed (power) of the air conditioner compressor is further adjusted, and the output temperature of the air conditioner.

According to the description, if the ECU module is required to be matched with a vehicle-mounted air conditioning system to detect whether the ECU module normally acts before the whole vehicle is assembled, the workload is too large; the workload of detecting the ECU module after the whole vehicle is assembled is larger, so a device capable of detecting the vehicle-mounted ECU module before the whole vehicle is assembled is urgently needed.

Disclosure of Invention

The invention aims to provide a device for detecting a vehicle-mounted ECU module before the assembly of a whole vehicle, which can detect whether the ECU module normally acts before the assembly of the whole vehicle and solve the problems of large workload and inconvenient disassembly and assembly of the ECU module after the assembly of the whole vehicle.

In order to achieve the purpose, the invention adopts the following technical scheme:

a device for detecting a vehicle-mounted ECU module before the assembly of a whole vehicle comprises a power supply, a power switch, a compressor switch indicator lamp, the ECU module, a potentiometer temperature adjusting switch and a compressor speed regulating indicator lamp; the potentiometer temperature adjusting switch, the ECU module and the compressor speed regulation indicator lamp are connected in series and then connected in parallel with the compressor switch indicator lamp to form a detection circuit, and the power supply supplies power to the detection circuit through the power switch.

The power supply voltage is 12V, and the power supply switch is a button switch.

Rated voltage of the compressor switch indicator light and the compressor speed regulation indicator light is not lower than 12V.

The invention has the beneficial effects that:

a device that is used for carrying out detection to on-vehicle ECU module before whole car assembly, can utilize potentiometre thermoregulation switch to simulate on-vehicle air conditioner thermoregulation switch and move evaporation temperature sensor, as long as the luminance of compressor speed governing pilot lamp takes place the light and shade change that corresponds along with potentiometre thermoregulation switch's action, can judge that the ECU module can normally move, according to this principle, can be convenient before whole car assembly detect the ECU module, avoid appearing taking place behind the whole car assembly and can not normally move the ECU module, still need dismantle, the problem of maintenance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of the control logic of a conventional ECU module;

fig. 2 is a schematic circuit diagram of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 2: the utility model relates to a device for carrying out detection to on-vehicle ECU module before whole car assembly, including power U, switch S1, compressor switch pilot lamp L1, ECU module, potentiometre temperature switch S2 and compressor speed governing pilot lamp L2; the potentiometer temperature adjusting switch S2, the ECU module and the compressor speed regulation indicator lamp L2 are connected in series and then connected in parallel with the compressor switch indicator lamp L1 to form a detection circuit, and the power supply U supplies power to the detection circuit through the power switch S1; specifically, the positive pole of power U is connected with switch S1 ' S first end, switch S1 ' S second end is connected with compressor switch pilot lamp L1 and the first end of potentiometre temperature switch S2, compressor switch pilot lamp L1 ' S second end is connected with power U negative pole, potentiometre temperature switch S2 ' S second end ECU module ' S control input end is connected, the control output of ECU module is connected with the first end of compressor speed governing pilot lamp L2, the second end and the power U negative pole of compressor speed governing pilot lamp L2 are connected.

The utility model discloses a device for being directed at vehicle-mounted ECU module before whole car assembly detects can utilize potentiometre temperature regulation switch S2 simulation on-vehicle air conditioner temperature regulation switch to the action of evaporating temperature sensor, and then makes the pulse width ratio of the voltage of ECU module output change, namely through the pulse width ratio of the control voltage of PWM rotational speed line output, and then makes the luminance of compressor speed governing pilot lamp L2 take place corresponding change; in the use, as long as the luminance of compressor speed governing pilot lamp L2 takes place corresponding light and shade change along with the action of potentiometre temperature switch S2, can judge that the ECU module can normally move, can be in order to detect the ECU module convenient before the whole car assembly, avoid appearing taking place after the whole car assembly ECU module can not normally move, still need the problem of dismantling, overhauing.

The preferred scheme is as follows: the voltage of the power supply U is 12V, and the power supply switch S1 is a button switch; because the power supply U of the vehicle-mounted HVAC (air conditioning system) is 12V, the action process of the ECU module can be simulated as truly as possible by selecting the power supply U of 12V, so that the detection result is more reliable; the button switch is selected for use, so that the operation is convenient.

The preferred scheme is as follows: rated voltage of the compressor switch indicator light L1 and the compressor speed regulation indicator light L2 is not lower than 12V; because the voltage of the power supply U is 12V, if the rated voltages of the compressor switch indicator light L1 and the compressor speed regulation indicator light L2 are too low, faults such as burnout and the like are easy to occur under the action of the ECU module, and the detection result is influenced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a device that is used for carrying out detection to on-vehicle ECU module before whole car assembly which characterized in that: the device comprises a power supply, a power switch, a compressor switch indicator lamp, an ECU module, a potentiometer temperature adjusting switch and a compressor speed regulation indicator lamp; the potentiometer temperature adjusting switch, the ECU module and the compressor speed regulation indicator lamp are connected in series and then connected in parallel with the compressor switch indicator lamp to form a detection circuit, and the power supply supplies power to the detection circuit through the power switch.

2. The device for detecting the vehicle-mounted ECU module before the assembly of the whole vehicle according to claim 1, is characterized in that: the power supply voltage is 12V, and the power supply switch is a button switch.

3. The device for detecting the vehicle-mounted ECU module before the assembly of the whole vehicle as claimed in claim 2, is characterized in that: rated voltage of the compressor switch indicator light and the compressor speed regulation indicator light is not lower than 12V.