1. A vehicle quiescent current detection method, characterized by comprising:

when a vehicle enters an electrical inspection station before a rain line, receiving a diagnosis instruction of diagnosis equipment, and controlling the vehicle to enter a vehicle locking and sleeping state according to the diagnosis instruction;

in the process that the vehicle enters a rain line to carry out a rain test, carrying out vehicle quiescent current detection to obtain a detection result;

and after the vehicle is out of a rain line, controlling the vehicle to unlock, and sending the detection result to a vehicle instrument for prompting.

2. The vehicle quiescent current detection method according to claim 1, wherein the detecting of the vehicle quiescent current to obtain the detection result specifically comprises:

obtaining a static current value detected by a vehicle storage battery sensor;

judging whether the static current detection is abnormal according to the comparison result of the static current value and a preset threshold range, and generating a judgment result;

and sending the judgment result and the static current value to a vehicle instrument for prompting, wherein the detection result comprises the judgment result and the static current value.

3. The vehicle quiescent current detection method according to claim 2, wherein sending the detection result to a vehicle meter for prompting specifically comprises:

and when the vehicle instrument receives the detection result, displaying according to the judgment result, wherein if the judgment result is that the static current is normal, the vehicle instrument indicates the indicator lamp in a first mode and displays the static current value, and if the judgment result is that the static current is abnormal, the vehicle instrument indicates the indicator lamp in a second mode and displays the static current value.

4. The vehicle quiescent current detection method according to claim 3, wherein the detection result is sent to a vehicle meter for prompting, and specifically further comprises:

and if the judgment result is that the static current is normal, the vehicle instrument indicates by an indicator lamp in a first mode and displays the static current value for a first preset time, and then stops indicating by the indicator lamp and displays the static current value.

5. The vehicle quiescent current detection method of claim 3, further comprising:

if the judgment result is that the static current is abnormal, diagnosing the wrong installation type of the ECU according to the comparison result of the static current value and the preset threshold range, and sending the diagnosis result to a vehicle instrument for displaying.

6. A vehicle quiescent current detection system, comprising:

the first control unit is used for receiving a diagnosis instruction of diagnosis equipment when a vehicle enters an electric detection station before a rain line, and controlling the vehicle to enter a vehicle locking and sleeping state according to the diagnosis instruction;

the static current detection unit is used for detecting the static current of the vehicle to obtain a detection result in the process that the vehicle enters a rain line to carry out a rain test; and

and the second control unit is used for controlling the unlocking of the vehicle after the vehicle is out of a rain line, and sending the detection result to the vehicle instrument for prompting.

7. The vehicle quiescent current detection system according to claim 6, characterized in that said quiescent current detection unit specifically comprises:

a signal acquisition unit for acquiring a static current value detected by a vehicle battery sensor;

the judging unit is used for judging whether static current detection is abnormal or not according to a comparison result of the static current value and a preset threshold range and generating a judgment result; and

and the signal sending unit is used for sending the judgment result and the static current value to a vehicle instrument for prompting, and the detection result comprises the judgment result and the static current value.

8. The vehicle quiescent current detection system according to claim 7, comprising a first prompting unit and a second prompting unit;

the first prompting unit is used for controlling a vehicle instrument to indicate an indicator lamp in a first mode and displaying the static current value when the judgment result of the judging unit is that the static current is normal;

and the second prompting unit is used for controlling the vehicle instrument to indicate the indicator lamp in a second mode and displaying the static current value when the judgment result of the judging unit is that the static current is abnormal.

9. The vehicle quiescent current detection system according to claim 8, wherein said first prompting unit is specifically configured to:

and when the judgment result of the judgment unit is that the static current is normal, controlling the vehicle instrument to perform indicator light indication in a first mode and display the static current value for a first preset time, and then stopping the indicator light indication and displaying the static current value.

10. The vehicle quiescent current detection system of claim 8, wherein said quiescent current detection unit further comprises:

and the diagnosis unit is used for diagnosing the wrong installation type of the ECU according to the comparison result of the static current value and the preset threshold range when the judgment result of the judgment unit is that the static current is abnormal, and transmitting the diagnosis result to a vehicle instrument for displaying.

Background

Along with the development of automobile intellectuality, networking, on-vehicle network is more and more complicated, and the risk that leads to the vehicle insufficient voltage is also bigger and bigger, and the vehicle insufficient voltage leads to the vehicle can not start, seriously influences customer experience. The conventional method for detecting the static current consumption of the vehicle through methods such as an SOC value and voltage change or an annular ammeter has long time consumption and low precision, and is difficult to ensure one hundred percent inspection before the vehicle leaves a factory, so a host factory mainly adopts a spot check method for detection or only detects a review vehicle, and the spot check method is very easy to cause problem vehicles to flow into the market, thereby influencing the vehicle use experience of customers.

Disclosure of Invention

The invention aims to provide a vehicle quiescent current detection method and a system thereof, so as to realize one hundred percent detection of vehicle quiescent current and avoid quality problems.

The embodiment of the invention provides a vehicle quiescent current detection method, which comprises the following steps:

when a vehicle enters an electrical inspection station before a rain line, receiving a diagnosis instruction of diagnosis equipment, and controlling the vehicle to enter a vehicle locking and sleeping state according to the diagnosis instruction;

in the process that the vehicle enters a rain line to carry out a rain test, carrying out vehicle quiescent current detection to obtain a detection result;

and after the vehicle is out of a rain line, controlling the vehicle to unlock, and sending the detection result to a vehicle instrument for prompting.

According to the method, the detecting the vehicle quiescent current to obtain the detection result specifically comprises the following steps:

obtaining a static current value detected by a vehicle storage battery sensor;

judging whether the static current detection is abnormal according to the comparison result of the static current value and a preset threshold range, and generating a judgment result;

and sending the judgment result and the static current value to a vehicle instrument for prompting, wherein the detection result comprises the judgment result and the static current value.

According to the method, the step of sending the detection result to a vehicle instrument for prompting specifically comprises the following steps:

and when the vehicle instrument receives the detection result, displaying according to the judgment result, wherein if the judgment result is that the static current is normal, the vehicle instrument indicates the indicator lamp in a first mode and displays the static current value, and if the judgment result is that the static current is abnormal, the vehicle instrument indicates the indicator lamp in a second mode and displays the static current value.

According to the method, the step of sending the detection result to a vehicle instrument for prompting specifically comprises the following steps:

and if the judgment result is that the static current is normal, the vehicle instrument indicates by an indicator lamp in a first mode and displays the static current value for a first preset time, and then stops indicating by the indicator lamp and displays the static current value.

The method as described above, wherein the method further comprises:

if the judgment result is that the static current is abnormal, diagnosing the wrong installation type of the ECU according to the comparison result of the static current value and the preset threshold range, and sending the diagnosis result to a vehicle instrument for displaying.

The embodiment of the invention further provides a vehicle quiescent current detection system, which comprises:

the first control unit is used for receiving a diagnosis instruction of diagnosis equipment when a vehicle enters an electric detection station before a rain line, and controlling the vehicle to enter a vehicle locking and sleeping state according to the diagnosis instruction;

the static current detection unit is used for detecting the static current of the vehicle to obtain a detection result in the process that the vehicle enters a rain line to carry out a rain test; and

and the second control unit is used for controlling the unlocking of the vehicle after the vehicle is out of a rain line, and sending the detection result to the vehicle instrument for prompting.

According to the above system, the quiescent current detection unit specifically includes:

a signal acquisition unit for acquiring a static current value detected by a vehicle battery sensor;

the judging unit is used for judging whether static current detection is abnormal or not according to a comparison result of the static current value and a preset threshold range and generating a judgment result; and

and the signal sending unit is used for sending the judgment result and the static current value to a vehicle instrument for prompting, and the detection result comprises the judgment result and the static current value.

The system comprises a first prompting unit and a second prompting unit;

the first prompting unit is used for controlling a vehicle instrument to indicate an indicator lamp in a first mode and displaying the static current value when the judgment result of the judging unit is that the static current is normal;

and the second prompting unit is used for controlling the vehicle instrument to indicate the indicator lamp in a second mode and displaying the static current value when the judgment result of the judging unit is that the static current is abnormal.

According to the system, the first prompting unit is specifically configured to:

and when the judgment result of the judgment unit is that the static current is normal, controlling the vehicle instrument to perform indicator light indication in a first mode and display the static current value for a first preset time, and then stopping the indicator light indication and displaying the static current value.

The system as described above, wherein the quiescent current detection unit further comprises:

and the diagnosis unit is used for diagnosing the wrong installation type of the ECU according to the comparison result of the static current value and the preset threshold range when the judgment result of the judgment unit is that the static current is abnormal, and transmitting the diagnosis result to a vehicle instrument for displaying.

The method and the system can be applied to vehicle quiescent current detection in the production process of the host factory, the method and the system are based on the existing vehicle configuration, the detection station and the detection equipment in the production process of the host factory are utilized to complete the activation of the control of the quiescent current detection routine, the time of rain test of the vehicle on a rain line is utilized, the quiescent current detection is carried out by means of the storage battery sensor and the instrument of the vehicle, and the detection equipment, the detection station, the labor cost and the time cost are not increased. The method can realize one hundred percent inspection of the static current part before the vehicle leaves the factory on the premise of not increasing the detection time, and solves the technical problems of long time consumption and low precision of the traditional method for detecting the static current consumption of the vehicle through methods such as SOC value and voltage change or an annular ammeter and the like.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a flowchart illustrating a vehicle quiescent current detection method according to an embodiment of the present invention.

Fig. 2 is a block diagram of a vehicle static current detection system according to another embodiment of the invention.

Detailed Description

Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

In addition, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, well known means have not been described in detail so as not to obscure the present invention.

An embodiment of the present invention provides a method for detecting a vehicle quiescent current, which is applied to vehicle quiescent current detection in a production process of a host factory, and fig. 1 is a flowchart of the method of this embodiment, and referring to fig. 1, the method of this embodiment includes steps S101 to S103:

step S101, when a vehicle enters an electric detection station before a rain line, receiving a diagnosis instruction of diagnosis equipment, and controlling the vehicle to enter a vehicle locking and sleeping state according to the diagnosis instruction;

specifically, when the vehicle enters an electrical inspection station before a rain line, a diagnosis instruction can be sent to the vehicle by means of the existing diagnosis equipment of the host factory, so as to indicate that the static current detection is required, and the vehicle is controlled to enter a vehicle locking and sleeping state according to the diagnosis instruction. It should be noted that before the vehicle enters the rain line, the vehicle needs to be locked, the vehicle and the key are separated, and the separation of the vehicle and the key can avoid the influence of the keyless start function on the detection of the quiescent current under the precondition that the detection of the quiescent current starts when the vehicle is locked.

S102, in the process that the vehicle enters a rain line to carry out a rain test, carrying out vehicle static current detection to obtain a detection result;

specifically, the vehicle quiescent current detection in the step is specifically performed by means of the vehicle battery sensor, and therefore, no new detection device is added. The vehicle battery sensor is an intelligent sensor, and particularly, the sensor has certain detection, self-diagnosis, data processing and self-adaptation capabilities on battery state information, so that the vehicle battery sensor is applied to a battery monitoring system of a novel electric vehicle, and the system is also called an intelligent microsensor system. Therefore, based on the detection, self-diagnosis and data processing functions of the battery sensor, a corresponding software program can be written according to the functions to be realized in step S102 and written into the vehicle battery sensor, that is, the vehicle quiescent current can be detected while the vehicle enters a rain line for rain test. Because the detection time and the rain test are completely overlapped, the detection time is not increased, the offline vehicle can be tested by one hundred percent, and the outflow of faults is reduced.

The vehicle controller receives the diagnosis instruction, controls the vehicle to enter a vehicle locking and sleeping state according to the diagnosis instruction, and sends a static current detection instruction to the vehicle storage battery sensor, and the vehicle storage battery sensor detects the static current according to the static current detection instruction.

And S103, after the vehicle is out of a rain line, controlling the vehicle to unlock, and sending the detection result to a vehicle instrument for prompting.

Specifically, step S103 can be implemented by writing a corresponding software program according to the function to be implemented in step S103 and writing the software program into the control unit of the vehicle instrument.

In an embodiment, the step S102 specifically includes:

step S201, obtaining a static current value detected by a vehicle storage battery sensor;

step S202, judging whether static current detection is abnormal according to a comparison result of the static current value and a preset threshold range, and generating a judgment result;

specifically, when the vehicle is in a sleep state, the quiescent current value should be within a reasonable range, and when the quiescent current value is within a preset threshold range in the step, the quiescent current value is normal, that is, the detection is successful. In the step, when the static current value exceeds the range of the preset threshold value, the static current value is abnormal, namely the detection is failed.

And S203, sending the judgment result and the static current value to a vehicle instrument for prompting, wherein the detection result comprises the judgment result and the static current value.

In an embodiment, the step S103 specifically includes:

when the vehicle instrument receives the detection result, displaying according to a judgment result;

if the judging result is that the static current is normal, the vehicle instrument indicates the indicator lamp in a first mode and displays the static current value;

and if the judgment result is that the static current is abnormal, the vehicle instrument indicates the static current value by an indicator lamp in a second mode.

In an embodiment, the step S103 specifically includes:

if the static current is normal, the vehicle instrument indicates the indicator lamp in a first mode and displays the static current value for a first preset time (preferably, but not limited to 10 seconds), and then stops indicating the indicator lamp and displaying the static current value.

In a specific embodiment, the method further comprises:

if the judgment result is that the static current is abnormal, diagnosing the wrong installation type of the ECU according to the comparison result of the static current value and the preset threshold range, and sending the diagnosis result to a vehicle instrument for displaying.

Specifically, different ECUs have different power supply types, such as a normally-powered ECU and a sleep-powered ECU, and the method of the embodiment can detect misloading of the power supply type by one hundred percent. For example, when a certain ECU is in a power supply mode of sleep power-off and is in a normal power supply mode, and in the case of general power detection, the vehicle is in an awake state and the misloading cannot be recognized, but the misloading can be detected by the magnitude of the quiescent current value by the quiescent current detection. Specifically, in the sleeping state, the vehicle static current value should be in a reasonable range (preset threshold range), when the vehicle static current value is smaller than the minimum value of the preset threshold range, it indicates that the vehicle static current value is lower, that is, part of the normally powered ECU is mistakenly installed as the sleeping power off, and when the vehicle static current value is larger than the maximum value of the preset threshold range, it indicates that the vehicle static current value is higher, that is, part of the sleeping power off ECU is mistakenly installed as the normally powered on.

The method is based on the existing vehicle configuration, the existing detection station and the existing detection equipment in the production process of the host factory are utilized to complete the activation of the control of the quiescent current detection routine, the time of the rain test of the vehicle on a rain line is utilized, the quiescent current detection is carried out by means of the storage battery sensor and the instrument of the vehicle, and the detection equipment, the detection station, the labor cost and the time cost are not increased. The method can realize one hundred percent inspection of the static current part before the vehicle leaves the factory on the premise of not increasing the detection time, and solves the technical problems of long time consumption and low precision of the traditional method for detecting the static current consumption of the vehicle through methods such as SOC value and voltage change or an annular ammeter and the like. And the detection personnel judges whether the static current detection of the vehicle is normal or not according to the detection result displayed by the instrument, and if the static current detection of the vehicle is not normal, the vehicle is repaired according to the diagnosis result. The battery insufficient voltage of the vehicle in the problem is avoided to lead to the fact that the vehicle can not be started and the storage battery is vulcanized to cause life damage, and the vehicle use experience of a customer is influenced.

An embodiment of the present invention further provides a vehicle quiescent current detection system, fig. 2 is a block diagram of the system of this embodiment, and referring to fig. 2, it can be seen that the system of this embodiment includes:

the first control unit 1 is used for receiving a diagnosis instruction of a diagnosis device when a vehicle enters an electric detection station before a rain line, and controlling the vehicle to enter a vehicle locking and sleeping state according to the diagnosis instruction;

the static current detection unit 2 is used for detecting the static current of the vehicle to obtain a detection result in the process that the vehicle enters a rain line to carry out a rain test; and

and the second control unit 3 is used for controlling the unlocking of the vehicle after the vehicle is out of a rain line, and sending the detection result to a vehicle instrument for prompting.

In an embodiment, the quiescent current detection unit 2 specifically includes:

a signal acquisition unit 21 for acquiring a static current value detected by a vehicle battery sensor;

a determination unit 22, configured to determine whether the static current detection is abnormal according to a comparison result between the static current value and a preset threshold range, and generate a determination result; and

and the signal sending unit 23 is configured to send the determination result and the static current value to a vehicle instrument for prompting, where the detection result includes the determination result and the static current value.

In a specific embodiment, the vehicle instrument comprises a first prompting unit 4 and a second prompting unit 5;

the first prompting unit 4 is used for controlling the vehicle instrument to indicate an indicator lamp in a first mode and displaying the quiescent current value when the judgment result of the judging unit 22 is that the quiescent current is normal;

and the second prompting unit 5 is used for controlling the vehicle instrument to indicate the indicator lamp in a second mode and displaying the quiescent current value when the judgment result of the judging unit 22 is that the quiescent current is abnormal.

In an embodiment, the first prompting unit 4 is specifically configured to:

when the judgment result of the judgment unit 22 is that the static current is normal, the vehicle instrument is controlled to perform indicator light indication in a first mode and display the static current value for a first preset time, and then the indicator light indication is stopped and the static current value is displayed.

In a specific embodiment, the quiescent current detection unit 2 further includes:

and the diagnosis unit 24 is used for diagnosing the ECU misloading type according to the comparison result of the static current value and the preset threshold range when the judgment result of the judgment unit 22 is that the static current is abnormal, and transmitting the diagnosis result to the vehicle instrument for displaying.

The above-described system embodiments are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

It should be noted that the system described in the foregoing embodiment corresponds to the method described in the foregoing embodiment, and therefore, portions of the system described in the foregoing embodiment that are not described in detail can be obtained by referring to the content of the method described in the foregoing embodiment, and are not described again here.

Also, the vehicle quiescent current detection system according to the above-described embodiment, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer-readable storage medium.

Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.