Driver alarm control method

Abstract

The present invention relates to a driver alarm control method, implemented through signal interaction between sensors, a urea pump, a urea nozzle, an ECU, an instrument, and an MP5 player. Text reminders and a buzzer are added to the instrument, and video animations are added to the MP5 player. The method includes control methods for low urea levels, unqualified urea quality, abnormal urea consumption, and interrupted urea addition. The ECU determines whether the exhaust gas control system is experiencing low urea levels, unqualified urea quality, abnormal urea consumption, or interrupted urea addition, and controls the system accordingly. This technical solution uses the ECU to detect different urea failure modes and effectively guide the driver to correctly identify the failure mode, guiding the driver to perform the correct operation.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile control, and in particular relates to an automobile driver alarm control method. Background Art

[0002] Motor vehicle regulations are becoming increasingly stringent, and the China VI standard imposes new requirements on light-duty diesel engines. Regulations require vehicles to be equipped with an alarm system with a visual alarm. This system alerts the driver to correct issues such as low levels of exhaust treatment reagent, refilling of unqualified reagent, abnormal reagent consumption, or interrupted addition of reagent. If the driver fails to make timely corrections, a driver guidance system is activated, forcing the driver to add urea or repair any SCR system malfunctions promptly to ensure the vehicle's emissions control system remains functional.

[0003] Current alarm systems utilize driver warning indicators, OBD lights, and instrument panel text alerts. However, these text alerts are not displayed in real time and only last for a few seconds before fading. If the alarm system is not promptly addressed after activation, the direct consequence is an engine failure, requiring assistance. Furthermore, these alerts are not conspicuous enough, leading many drivers to neglect the manual and be unaware of the consequences. Consequently, they fail to heed these warnings, resulting in wasted manpower and time when the engine fails to start. Summary of the Invention

[0004] The object of the present invention is to provide a driver alarm control method to solve the problems existing in the driver alarm in the background technology.

[0005] To achieve the above objectives, this application is implemented through the following technical solutions:

[0006] A driver alarm control method includes a method for controlling a low urea liquid level, a method for controlling unqualified urea quality, a method for controlling abnormal urea consumption, and a method for controlling interruption of urea addition. An ECU determines whether an exhaust gas control system is in a low urea liquid level, unqualified urea quality, abnormal urea consumption, or interruption of urea addition, and controls the system accordingly.

[0007] Furthermore, the method for controlling low urea liquid level comprises the following steps:

[0008] S11. When the ECU calculates that the cruising range is less than a first set value based on the current urea level, the urea level warning light is lit and remains on. The driver guidance system is activated, and the driver warning light flashes at a first set frequency. The instrument panel displays a real-time message "Urea level is low, the cruising range can reach the first set value." The buzzer sounds a set number of times, and a fault code is reported. The MP5 player displays the operation instructions in an animated manner.

[0009] S12. When the ECU calculates that the cruising range is less than the second set value based on the current urea level, the urea level warning light is lit and remains on. The driver guidance system is activated at the same time. The driver warning light flashes at the second set frequency. The instrument panel displays the message "Urea level is low, the cruising range can reach the second set value" in real time. The buzzer sounds the set number of times and reports a fault code. The MP5 player displays the operation instructions in an animated manner.

[0010] S13. When the ECU detects that the urea is depleted, the urea level warning light and the driver warning light are always on. The instrument panel prompts "Urea is depleted, please refill and start the vehicle" in real time. The buzzer continues to alarm and reports the fault code. At the same time, the MP5 is visually displayed and the operation method is played through animation.

[0011] Furthermore, the first set value is greater than the second set value, and the first set frequency is less than the second set frequency.

[0012] Furthermore, a method for controlling unqualified urea quality comprises the following steps:

[0013] S21. When the ECU detects that the urea quality is unqualified, the driver warning light will be on and the instrument panel will display "Urea unqualified, please go to the service station for repair" in real time. The buzzer will cycle a set number of times and report the fault code. At the same time, the MP5 will display the operation instructions in an animated form.

[0014] S22. In the case of step S21, if the vehicle continues to travel at the third set value without processing, the driver guidance system is activated, the driver warning light is always on, the instrument panel prompts "Urea is unqualified, the vehicle will not start after the fourth set value", the buzzer cycles a set number of times, and the fault code is reported. At the same time, the MP5 is visually displayed and the operation method is played in the form of animation;

[0015] S23. After the driver guidance system is activated, the vehicle is not processed when traveling to the fourth set value. The vehicle cannot be restarted after being turned off. The driver warning light is always on, and the instrument panel prompts in real time, "Urea is unqualified. Please change the urea before starting the vehicle." The buzzer continues to alarm, and the fault code is reported. At the same time, the MP5 is visually displayed, and the operation method is played through animation.

[0016] Furthermore, the third setting value is smaller than the fourth setting value.

[0017] Furthermore, the method for controlling abnormal urea consumption includes the following steps:

[0018] S31. When the ECU detects abnormal urea consumption, the driver warning light will be on and the instrument panel will display "Abnormal urea consumption, please go to the service station for repair". The buzzer will cycle a set number of times and report the fault code. The MP5 will also display the operation instructions in an animated format.

[0019] S32. In the case of step S31, the vehicle continues to travel the fifth set value, the driver guidance system is activated, the driver warning light is always on, the instrument panel prompts "abnormal urea consumption, the vehicle will not start after the sixth set value" in real time, the buzzer cycles a set number of times, reports the fault code, and is visually displayed on the MP5, and the operation method is played in the form of animation;

[0020] S33. After the driver guidance system is activated, the vehicle is not processed when traveling to the sixth set value. The vehicle is not allowed to be restarted after being turned off. The driver warning light is always on, and the instrument panel prompts in real time: "Abnormal urea consumption. Please start the vehicle after repair." The buzzer continues to alarm and reports the fault code. At the same time, it is visualized on the MP5 and the operation method is played through animation.

[0021] Furthermore, the fifth setting value is smaller than the sixth setting value.

[0022] Furthermore, the method for controlling the interruption of urea addition comprises the following steps:

[0023] S41: When the ECU detects that normal urea supply cannot be performed, the driver warning light is always on, the instrument panel prompts "Urea addition interrupted, please go to the service station for repair", the buzzer cycles a set number of times, and the fault code is reported. At the same time, the MP5 is visually displayed and the operation method is played through animation.

[0024] S42. In the case of step S41, if the vehicle is traveling at the seventh set value and no processing is performed, the driver guidance system is activated, the driver warning light is always on, the instrument panel prompts "Urea addition interrupted, the vehicle will not start after the eighth set value", the buzzer cycles a set number of times, and the fault code is reported. At the same time, the MP5 is visually displayed and the operation mode is played in the form of animation;

[0025] S43. After the driver guidance system is activated, the vehicle is not processed when traveling to the eighth set value. The vehicle is not allowed to be restarted after being turned off. The driver warning light is always on, and the instrument panel prompts "Urea addition interrupted, please start the vehicle after repair" in real time. The buzzer continues to alarm and reports the fault code. At the same time, it is visually displayed on the MP5 and the operation method is played through animation.

[0026] Furthermore, the seventh setting value is smaller than the eighth setting value.

[0027] The beneficial effects of the present invention are:

[0028] This technical solution detects different urea failure modes through the ECU, and effectively guides the driver to correctly identify the failure mode and guide the driver to perform correct operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a block diagram of the driver alarm control method of the present invention. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is described in detail below with reference to the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, and cannot be interpreted as limiting the technical solution of the present invention.

[0031] This technical solution is mainly realized through signal interaction between sensors, urea pumps, urea nozzles, ECU, instruments, MP5, etc., adding text reminders and buzzers to the instruments and adding video animations to the MP5.

[0032] like Figure 1 As shown, the driver alarm control method includes a control method for low urea liquid level, a control method for unqualified urea quality, a control method for abnormal urea consumption and a control method for urea addition interruption; the ECU determines whether the exhaust control system belongs to low urea liquid level, unqualified urea quality, abnormal urea consumption or urea addition interruption and controls them respectively.

[0033] A method for controlling a low urea liquid level comprises the following steps:

[0034] S11. When the ECU calculates that the cruising range is less than 700 km based on the current urea level, the urea level warning light will be on and remain on. At the same time, the driver guidance system will be activated. The driver warning light will flash at a frequency of 1 Hz. The instrument panel will display "Urea level is low, and the driving range can be further extended by 700 km" in real time. The buzzer will cycle three times and the fault code will be reported. At the same time, the MP5 will be displayed visually and the operation method will be played through animation.

[0035] S12. When the ECU calculates that the cruising range is less than 50 km based on the current urea level, the urea level warning light will be on, the driver warning light will flash at a frequency of 2 Hz, and the instrument panel will display "Urea level is low, 300 km of driving range" in real time. The buzzer will cycle three times and the fault code will be reported. At the same time, the MP5 will be displayed visually and the operation method will be played through animation.

[0036] S13. When the ECU detects that the urea is depleted, the urea level warning light and the driver warning light are always on. The instrument panel prompts "Urea is depleted, please refill and start the vehicle" in real time. The buzzer continues to alarm and reports the fault code. At the same time, the MP5 is visually displayed and the operation method is played through animation.

[0037] Between step S11 and step S12, there is also included step S14. When the ECU calculates that the cruising range is less than 300 km based on the current urea liquid level value, the urea liquid level warning light is always on, the driver warning light flashes at a frequency of 1 Hz, the instrument text prompts "Urea liquid level is low, and the driving range can be further extended by 300 km" in real time, the buzzer cycles three times, and the fault code is reported. At the same time, it is visually displayed on the MP5 and the operation method is played in the form of animation.

[0038] The method for controlling unqualified urea quality includes the following steps:

[0039] S21. When the ECU detects that the urea quality is unqualified, the driver warning light is always on, the instrument panel prompts "Urea is unqualified, please go to the service station for repair" in real time, the buzzer cycles three times, and the fault code is reported. At the same time, it is visually displayed on the MP5 and the operation method is played through animation.

[0040] S22: After a fault is detected, if the vehicle travels 50 km without any action being taken, the driver guidance system is activated, the driver warning light is constantly on, and the instrument panel displays a real-time message: "Urea is unqualified, the vehicle will not start after 700 km." The buzzer sounds three times, announcing the fault code, and the MP5 player displays the operation instructions in an animated manner.

[0041] S23. After the driver guidance system is activated, the vehicle travels 700 km without any treatment. The vehicle is not allowed to be restarted after it is turned off. The driver warning light is always on, and the instrument panel prompts in real time: "Urea is unqualified, please change it and start the vehicle." The buzzer continues to alarm and report the fault code. At the same time, it is visualized on the MP5 and the operation method is played through animation.

[0042] The method for controlling abnormal urea consumption comprises the following steps:

[0043] S31. When the ECU detects abnormal urea consumption, the driver warning light is always on, and the instrument panel prompts "Abnormal urea consumption (urea addition failure), please go to the service station for repair" in real time. The buzzer cycles three times and reports the fault code. At the same time, it is visually displayed on the MP5 and the operation method is played through animation.

[0044] S32: After a fault is detected, if the vehicle travels 50 km without any action being taken, the driver guidance system is activated, the driver warning light is constantly on, and the instrument panel displays a real-time message: "Abnormal urea consumption (urea addition fault), vehicle will not start after 700 km." The buzzer sounds three times, reporting the fault code. The MP5 player displays the fault code visually, and the operation method is played through animation.

[0045] S33: After the driver guidance system is activated, the vehicle travels 700 km without any treatment. The vehicle is not allowed to be restarted after it is turned off. The driver warning light is always on, and the instrument panel prompts in real time: "Abnormal urea consumption (urea addition failure). Please start the vehicle after repair." The buzzer continues to alarm and report the fault code. At the same time, it is visualized on the MP5 and the operation method is played through animation.

[0046] The method for controlling the interruption of urea addition comprises the following steps:

[0047] S41. When the ECU detects that the reagent cannot be supplied normally, the driver's warning light is always on, the instrument panel prompts "Urea addition interrupted, please go to the service station for repair", the buzzer cycles three times, and the fault code is reported. At the same time, it is visually displayed on the MP5 and the operation method is played through animation.

[0048] S42: After a fault is detected, if the vehicle travels 50 km without any action being taken, the driver guidance system is activated, the driver warning light is constantly on, and the instrument panel displays a real-time message: "Urea addition interrupted, vehicle will not start after 700 km." The buzzer sounds three times, reporting the fault code. The MP5 player displays the fault code visually, and the operation method is played through animation.

[0049] S43. After the induction system is activated, the vehicle travels 700 km without any treatment. The vehicle is not allowed to be restarted after it is turned off. The driver's warning light is always on, and the instrument text prompts in real time "Urea addition interrupted, please start the vehicle after maintenance". The buzzer continues to alarm and report the fault code. At the same time, it is visually displayed on the MP5 and the operation method is played through animation.

[0050] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A driver alarm control method, characterized in that: Including control methods for low urea liquid level, unqualified urea quality, abnormal urea consumption and urea addition interruption; ECU determines whether the exhaust gas control system is low urea liquid level, unqualified urea quality, abnormal urea consumption or urea addition interruption and controls them accordingly; A method for controlling a low urea liquid level comprises the following steps: S11. When the ECU calculates that the cruising range is less than a first set value based on the current urea level, the urea level warning light is lit and remains on. The driver guidance system is activated, and the driver warning light flashes at a first set frequency. The instrument panel displays a real-time message "Urea level low, cruising range can reach the first set value." The buzzer sounds a set number of times, and a fault code is reported. The MP5 player displays the operation instructions in an animated manner. S12. When the ECU calculates that the cruising range is less than the second set value based on the current urea level, the urea level warning light is illuminated and remains on. The driver guidance system is activated, and the driver warning light flashes at a second set frequency. The instrument panel displays a real-time message "Urea level low, cruising range can reach the second set value." The buzzer sounds a set number of times, announcing a fault code, and displays the operation instructions in an animated manner on the MP5. S13. When the ECU detects that the urea is depleted, the urea level warning light and the driver warning light are on. The instrument panel prompts "Urea is depleted. Please refill before starting the vehicle" in real time. The buzzer sounds continuously and reports the fault code. The MP5 player displays the operation instructions in an animated format. The method for controlling unqualified urea quality includes the following steps: S21. When the ECU detects that the urea quality is unqualified, the driver warning light will be on and the instrument panel will display "Urea unqualified, please go to the service station for repair" in real time. The buzzer will cycle a set number of times and report the fault code. At the same time, the MP5 will display the operation instructions in an animated form. S22. In the case of step S21, if the vehicle continues to travel at the third set value without processing, the driver guidance system is activated, the driver warning light is constantly on, the instrument panel prompts "Urea unqualified, the vehicle will not start after the fourth set value" in real time, the buzzer cycles a set number of times, and the fault code is reported. At the same time, the MP5 is visually displayed, and the operation method is played in the form of animation; S23. After the driver guidance system is activated, the vehicle is not processed when traveling to the fourth set value. Restarting the vehicle after it is turned off is not allowed. The driver warning light is always on, and the instrument panel prompts "Urea is unqualified. Please change the urea before starting the vehicle" in real time. The buzzer continues to alarm, and the fault code is reported. At the same time, the MP5 is visually displayed, and the operation method is played through animation.

2. The driver warning control method according to claim 1, characterized in that: The first setting value is greater than the second setting value, and the first setting frequency is less than the second setting frequency.

3. The driver warning control method according to claim 1, characterized in that: The third set value is smaller than the fourth set value.

4. The driver warning control method according to claim 1, characterized in that: The method for controlling abnormal urea consumption comprises the following steps: S31. When the ECU detects abnormal urea consumption, the driver warning light will be on and the instrument panel will display "Abnormal urea consumption, please go to the service station for repair". The buzzer will cycle a set number of times and report the fault code. The MP5 will also display the operation instructions in an animated format. S32. In the case of step S31, the vehicle continues to travel for the fifth set value, the driver guidance system is activated, the driver warning light is constantly on, the instrument panel prompts "Abnormal urea consumption, the vehicle will not start after the sixth set value", the buzzer cycles a set number of times, and the fault code is reported. At the same time, the MP5 is visually displayed, and the operation method is played in the form of animation; S33: After the driver guidance system is activated, the vehicle is not processed when traveling to the sixth set value. Restarting the vehicle after it is turned off is not allowed. The driver warning light is always on, and the instrument panel prompts "Abnormal urea consumption. Please restart the vehicle after repair." The buzzer continues to alarm and reports the fault code. At the same time, the MP5 is visually displayed, and the operation method is played through animation.

5. The driver warning control method according to claim 4, characterized in that: The fifth set value is smaller than the sixth set value.

6. The driver warning control method according to claim 1, characterized in that: The method for controlling the interruption of urea addition comprises the following steps: S41: When the ECU detects that normal urea supply cannot be performed, the driver warning light will be on and the instrument panel will prompt "Urea addition interrupted, please go to the service station for repair". The buzzer will cycle a set number of times and report the fault code. At the same time, the MP5 will visually display the operation method through animation. S42. In the case of step S41, if the vehicle is traveling at the seventh set value and no processing is performed, the driver guidance system is activated, the driver warning light is constantly on, the instrument panel displays a real-time message "Urea addition interrupted, vehicle will not start after the eighth set value", the buzzer sounds a set number of times, and a fault code is reported. The MP5 player displays the operation mode in a visual manner through animation. S43. After the driver guidance system is activated, the vehicle is not processed when traveling to the eighth set value. Restarting the vehicle after it is turned off is not allowed. The driver warning light is always on, and the instrument panel prompts "Urea addition interrupted. Please restart the vehicle after repairs" in real time. The buzzer continues to alarm and reports the fault code. At the same time, the MP5 is visually displayed and the operation method is played through animation.

7. The driver warning control method according to claim 6, characterized in that: The seventh set value is smaller than the eighth set value.

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