CN115366680B - Method for displaying temperature outside vehicle - Google Patents
Method for displaying temperature outside vehicle Download PDFInfo
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- CN115366680B CN115366680B CN202211213344.1A CN202211213344A CN115366680B CN 115366680 B CN115366680 B CN 115366680B CN 202211213344 A CN202211213344 A CN 202211213344A CN 115366680 B CN115366680 B CN 115366680B
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000110 cooling liquid Substances 0.000 claims abstract description 28
- 239000002826 coolant Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/29—Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/16—Type of output information
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/18—Information management
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Instrument Panels (AREA)
Abstract
The invention relates to an external temperature display method which is applied to an automobile, wherein corresponding external temperature display value determining strategies are respectively set according to different states of an ignition switch of the automobile, an external temperature acquisition value, an engine cooling liquid temperature value and the speed of the automobile are obtained, and the external temperature display value is determined according to the corresponding external temperature display value determining strategies. By adopting the scheme of the invention, the temperature outside the vehicle can be accurately and stably displayed.
Description
Technical Field
The invention relates to an automobile, in particular to an outside temperature display method.
Background
With the rapid development of the automobile industry, electronic technology is continuously advancing. The automobile external temperature display function has become the standard of automobiles. The temperature outside the automobile is displayed on an automobile instrument screen, so that a customer can better know the current external temperature, and the temperature is also an important parameter for realizing automatic adjustment of an automobile air conditioner. Such as: when the external temperature is lower than 0 ℃, the road surface is possibly frozen, so that a driver is reminded of paying attention to driving safety and slipping is avoided; the automatic air conditioner is adjusted into warm air through an automatic algorithm so as to improve the temperature in the vehicle.
However, the mounting point of the external temperature sensor is usually at the head of the vehicle and is affected by self-heating, sun shine, front tail gas of the engine and the like, and if the external temperature sensor is not processed, inaccurate and even obvious abnormal conditions can be caused.
Disclosure of Invention
The invention aims to provide an outside temperature display method for displaying the outside temperature of a vehicle more accurately.
The invention relates to an off-vehicle temperature display method, which comprises the following steps:
Step one, judging the state of an ignition switch of the automobile, and recording an external temperature display value before the state is converted to OFF if the state is 0FF or is converted from ON to OFF; if the state is that the state is being converted from 0FF to 0N, the step II is entered; if the state is ON, the step six is entered;
Step two, acquiring an off-vehicle temperature acquisition value, judging whether to power up for the first time, determining whether to initialize, and if so, entering a step three; if the initialization is not carried out, the step four is entered;
Judging the temperature value of the engine cooling liquid, and if the temperature value of the engine cooling liquid is less than or equal to 45 ℃, displaying the acquired value of the temperature outside the vehicle as a display value of the temperature outside the vehicle; if the temperature value of the engine cooling liquid is greater than 45 ℃, judging whether a vehicle-to-machine network is effective, if so, displaying a local environment temperature value acquired from the network as an external temperature display value, and if not, displaying a preset value as the external temperature display value;
Judging the magnitude of the vehicle exterior temperature acquisition value and the vehicle exterior temperature display value when the vehicle exterior temperature acquisition value is powered down last time, and if the vehicle exterior temperature acquisition value is smaller than or equal to the vehicle exterior temperature display value when the vehicle exterior temperature acquisition value is powered down last time, displaying the vehicle exterior temperature acquisition value as the vehicle exterior temperature display value; if the acquired value of the temperature outside the vehicle is larger than the displayed value of the temperature outside the vehicle when the power is turned off last time, judging that the ignition switch is at 0FF time, and if the ignition switch is at 0FF time and is longer than 1h, entering a fourth step; if the ignition switch is 0FF and the time is less than or equal to 1h, entering a step five;
Judging the temperature value of the engine cooling liquid, and if the temperature value of the engine cooling liquid is less than or equal to 45 ℃, displaying the acquired value of the outside temperature as the display value of the outside temperature; if the temperature value of the engine cooling liquid is greater than 45 ℃, entering a step IV;
Step four, judging whether the difference between the acquired value of the temperature outside the vehicle and the display value of the temperature outside the vehicle at the last power-down time is less than 5 ℃; if the difference is less than 5 ℃, the acquired value of the temperature outside the vehicle is used as the display value of the temperature outside the vehicle for display; if the difference is greater than or equal to 5 ℃, the display value of the temperature outside the vehicle at the last power-down time is used as the display value of the temperature outside the vehicle;
Judging the temperature value of the engine cooling liquid, and if the temperature value of the engine cooling liquid is greater than 50 ℃, displaying the display value of the temperature outside the vehicle when the power is turned off last time as the display value of the temperature outside the vehicle; if the temperature value of the engine cooling liquid is less than or equal to 50 ℃, entering a fourth step;
Step six, judging the speed and duration of the automobile, if the speed is greater than 20km/h and the duration is greater than or equal To 20s, entering step six, otherwise, acquiring an external temperature display value To during the power-up, periodically acquiring and recording an external temperature acquisition value, and displaying Min [ To, tn1, …, tnm ] as the external temperature display value, wherein Tnm is the external temperature acquisition value acquired and recorded for the mth time;
Step six, acquiring an external temperature display value To during power-up, periodically acquiring and recording an external temperature acquisition value, comparing to+Kt with the acquired external temperature acquisition value after acquiring the external temperature acquisition value each time, and displaying Min [ to+Kt, tn1, …, tnm ] as the external temperature display value if the to+Kt is smaller than the acquired external temperature acquisition value, wherein Tnm is the acquired and recorded external temperature acquisition value for the m time, t represents the duration of running of the current automobile at a speed greater than 20km/h, and K is the preset temperature change rate of time; if the to+Kt is greater than or equal To the currently acquired vehicle exterior temperature acquisition value, displaying the currently acquired vehicle exterior temperature acquisition value as a vehicle exterior temperature display value;
Repeating the step six until the speed of the automobile is less than or equal to 20km/h, and entering the step six.
Alternatively, K has a value of 1/6 in units of ℃/s.
Optionally, the preset value is 25 ℃.
By adopting the scheme of the invention, the temperature outside the vehicle can be accurately and stably displayed.
Drawings
FIG. 1 is one of the flowcharts of the method for displaying the temperature outside the vehicle according to the embodiment;
FIG. 2 is a second flowchart of an off-vehicle temperature display method according to the embodiment.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The method for displaying the temperature outside the automobile, as shown in fig. 1 and 2, is applied to the automobile and comprises the following steps:
Step one, judging the state of an ignition switch of the automobile, and if the state is 0FF or is converted from ON to OFF, recording an OFF-board temperature display value before the state is converted to OFF as an OFF-board temperature display value when power is turned OFF; if the state is that the state is being converted from 0FF to 0N, the step II is entered; if the state is ON, step six is entered.
Step two, acquiring an off-vehicle temperature acquisition value Tn, judging whether the power is on for the first time, if so, initializing, otherwise, not initializing; if the initialization is carried out, entering a step three; if no initialization is performed, step four is entered.
Judging the temperature value Tw of the engine cooling liquid, and if the temperature value Tw of the engine cooling liquid is less than or equal to 45 ℃, displaying an off-vehicle temperature acquisition value Tn as an off-vehicle temperature display value Ts; if the temperature Tw of the engine cooling liquid is greater than 45 ℃, judging whether the vehicle-to-machine network is effective, if so, displaying a local environment temperature value obtained from the network as an outside-vehicle temperature display value, and if not, displaying a preset value as an outside-vehicle temperature display value; as a preferred example, the preset value is 25 ℃.
Judging the magnitudes of an outside-vehicle temperature acquisition value Tn and an outside-vehicle temperature display value Tos when the power is turned off last time, and if the outside-vehicle temperature acquisition value Tn is smaller than or equal to the outside-vehicle temperature display value Tos when the power is turned off last time, displaying the outside-vehicle temperature acquisition value Tn as an outside-vehicle temperature display value Ts; if the vehicle exterior temperature acquisition value Tn is larger than the vehicle exterior temperature display value Tos at the last power-down time, judging the IGN 0FF time, and if the IGN 0FF time is larger than 1h, entering a fourth step; if IGN 0FF time is less than or equal to 1h, entering a step five; the IGN 0FF time is the duration from the last IGN 0FF to the current IGN ON.
Judging the temperature value Tw of the engine cooling liquid, and if the temperature value Tw of the engine cooling liquid is less than or equal to 45 ℃, displaying an outside-vehicle temperature acquisition value Tn as an outside-vehicle temperature display value Ts; if the temperature Tw of the engine cooling liquid is greater than 45 ℃, entering a fourth step;
Step four, judging whether the difference value of the vehicle exterior temperature acquisition value Tn-and the vehicle exterior temperature display value Tos when the power is turned off last time is smaller than 5 ℃; if the difference value of Tn-Tos is smaller than 5 ℃, the outside temperature acquisition value Tn is displayed as an outside temperature display value Ts; if the difference value of Tn-Tos is greater than or equal to 5 ℃, the vehicle exterior temperature display value Tos at the last power-down time is used as the vehicle exterior temperature display value Ts to be displayed;
judging the temperature value Tw of the engine cooling liquid, and if the temperature value Tw of the engine cooling liquid is greater than 50 ℃, displaying an off-vehicle temperature display value Tos as an off-vehicle temperature display value Ts when the power is turned off last time; if the temperature Tw of the engine cooling liquid is less than or equal to 50 ℃, entering a fourth step;
Step six, judging the magnitude and duration of the vehicle speed V of the vehicle, if the vehicle speed V is greater than 20km/h and the duration is greater than or equal To 20s, entering step six, otherwise, acquiring an external vehicle temperature display value To during the power-on, periodically acquiring and recording an external vehicle temperature acquisition value Tn, and displaying Min [ To, tn1, …, tnm ] as an external vehicle temperature display value, wherein Tnm is the external vehicle temperature acquisition value acquired and recorded for the mth time;
Step six, acquiring an external temperature display value To during power-up, periodically acquiring and recording an external temperature acquisition value Tn, comparing to+Kt with the external temperature acquisition value Tn acquired at the present time after acquiring the external temperature acquisition value Tn each time, and displaying Min [ to+Kt, tn1, …, tmm ] as the external temperature display value if the to+Kt is smaller than the external temperature acquisition value Tn acquired at the present time, wherein Tmm is the external temperature acquisition value acquired and recorded at the mth time, t represents the duration of running of the current automobile at the speed of more than 20km/h, and K is the preset temperature change rate of time; if the to+Kt is greater than or equal To the currently acquired vehicle exterior temperature acquisition value Tn, displaying the currently acquired vehicle exterior temperature acquisition value Tn as a vehicle exterior temperature display value Ts;
Repeating the step six until the speed V of the automobile is less than or equal to 20km/h, and entering the step six.
As a preferred example, the value of K is 1/6, the unit is per second, and by calibrating the value of K, the accurate display of the temperature outside the vehicle is facilitated.
In a specific implementation, an external temperature sensor is arranged on the automobile and is used for acquiring an external temperature acquisition value, and the vehicle-mounted arrangement of the automobile comprises at least one processor and at least one memory coupled with the at least one processor, wherein the memory stores instructions executable by the at least one processor, and the instructions execute the external temperature display method when being executed by the at least one processor.
According to different states of the ignition switch of the automobile, the automobile speed, the automobile outside temperature acquisition value and the engine coolant temperature value are acquired, comprehensively processed, determined and periodically updated to obtain the automobile outside temperature display value. According to the application, the displayed external temperature display value can be adjusted according to the environmental change of the automobile in normal operation, so that the external temperature display value displayed in the automobile can accurately reflect the environmental temperature of the automobile. In the application, in the initialization and power-on conditions, in order to avoid the influence of the heat of the engine compartment and the complex environmental heat, the adjusting parameter and the preset value are added, and the adjusting parameter is the local weather temperature inquired by the vehicle and the machine from the Internet, thereby being beneficial to more stably and accurately displaying the external temperature display value. The application optimizes the external temperature display strategy after exposure in high-temperature weather (the temperature value of engine coolant is more than 50 ℃), and in order to avoid the influence of the exposure of the vehicle body shell and ground high-temperature radiation on the external temperature sensor, the external temperature display value is corrected by the following three parameters: 1) Engine coolant temperature; 2) Powering down time; 3) The temperature acquired by the temperature sensor outside the vehicle is favorable for more stably and accurately displaying the temperature display value outside the vehicle; according To the application, in the sixth step and the sixth step, the vehicle exterior temperature display strategy when the vehicle speed is changed back and forth at a low speed (less than or equal To 20 km/h) and a medium speed (greater than 20 km/h) is optimized under the condition of urban congestion, and the vehicle exterior temperature display value can be reduced or even eliminated by correcting the formulas of Min To, tn1, …, tnm and Min to+Kt, tn1, … and Tnm, so that the influence of the high-temperature tail gas of surrounding vehicles and the heat of an engine cabin on the vehicle exterior temperature acquisition value can be reduced, and the vehicle exterior temperature display value can be more stably and accurately displayed.
In the description of the present specification, a description referring to the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic is included in at least one embodiment or example of the invention in connection with the embodiment or example. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
Claims (3)
1. An off-vehicle temperature display method is characterized by comprising the following steps:
Step one, judging the state of an ignition switch of the automobile, and recording an external temperature display value before the state is converted to OFF if the state is 0FF or is converted from ON to OFF; if the state is that the state is being converted from 0FF to 0N, the step II is entered; if the state is ON, the step six is entered;
Step two, acquiring an off-vehicle temperature acquisition value, judging whether to power up for the first time, determining whether to initialize, and if so, entering a step three; if the initialization is not carried out, the step four is entered;
Judging the temperature value of the engine cooling liquid, and if the temperature value of the engine cooling liquid is less than or equal to 45 ℃, displaying the acquired value of the temperature outside the vehicle as a display value of the temperature outside the vehicle; if the temperature value of the engine cooling liquid is greater than 45 ℃, judging whether a vehicle-to-machine network is effective, if so, displaying a local environment temperature value acquired from the network as an external temperature display value, and if not, displaying a preset value as the external temperature display value;
Judging the magnitude of the vehicle exterior temperature acquisition value and the vehicle exterior temperature display value when the vehicle exterior temperature acquisition value is powered down last time, and if the vehicle exterior temperature acquisition value is smaller than or equal to the vehicle exterior temperature display value when the vehicle exterior temperature acquisition value is powered down last time, displaying the vehicle exterior temperature acquisition value as the vehicle exterior temperature display value; if the acquired value of the temperature outside the vehicle is larger than the displayed value of the temperature outside the vehicle when the power is turned off last time, judging that the ignition switch is at 0FF time, and if the ignition switch is at 0FF time and is longer than 1h, entering a fourth step; if the ignition switch is 0FF and the time is less than or equal to 1h, entering a step five;
Judging the temperature value of the engine cooling liquid, and if the temperature value of the engine cooling liquid is less than or equal to 45 ℃, displaying the acquired value of the outside temperature as the display value of the outside temperature; if the temperature value of the engine cooling liquid is greater than 45 ℃, entering a step IV;
Step four, judging whether the difference between the acquired value of the temperature outside the vehicle and the display value of the temperature outside the vehicle at the last power-down time is less than 5 ℃; if the difference is less than 5 ℃, the acquired value of the temperature outside the vehicle is used as the display value of the temperature outside the vehicle for display; if the difference is greater than or equal to 5 ℃, the display value of the temperature outside the vehicle at the last power-down time is used as the display value of the temperature outside the vehicle;
Judging the temperature value of the engine cooling liquid, and if the temperature value of the engine cooling liquid is greater than 50 ℃, displaying the display value of the temperature outside the vehicle when the power is turned off last time as the display value of the temperature outside the vehicle; if the temperature value of the engine cooling liquid is less than or equal to 50 ℃, entering a fourth step;
Step six, judging the speed and duration of the automobile, if the speed is greater than 20km/h and the duration is greater than or equal To 20s, entering step six, otherwise, acquiring an external temperature display value To during the power-up, periodically acquiring and recording an external temperature acquisition value, and displaying Min [ To, tn1, …, tnm ] as the external temperature display value, wherein Tnm is the external temperature acquisition value acquired and recorded for the mth time;
Step six, acquiring an external temperature display value To during power-up, periodically acquiring and recording an external temperature acquisition value, comparing to+Kt with the acquired external temperature acquisition value after acquiring the external temperature acquisition value each time, and displaying Min [ to+Kt, tn1, …, tnm ] as the external temperature display value if the to+Kt is smaller than the acquired external temperature acquisition value, wherein Tnm is the acquired and recorded external temperature acquisition value for the m time, t represents the duration of running of the current automobile at a speed greater than 20km/h, and K is the preset temperature change rate of time; if the to+Kt is greater than or equal To the currently acquired vehicle exterior temperature acquisition value, displaying the currently acquired vehicle exterior temperature acquisition value as a vehicle exterior temperature display value;
Repeating the step six until the speed of the automobile is less than or equal to 20km/h, and entering the step six.
2. The method for displaying an outside temperature according to claim 1, wherein the value of K is 1/6 in ℃/s.
3. The method of claim 1, wherein the preset value is 25 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211213344.1A CN115366680B (en) | 2022-09-30 | 2022-09-30 | Method for displaying temperature outside vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211213344.1A CN115366680B (en) | 2022-09-30 | 2022-09-30 | Method for displaying temperature outside vehicle |
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| CN115366680A CN115366680A (en) | 2022-11-22 |
| CN115366680B true CN115366680B (en) | 2024-05-14 |
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| CN202211213344.1A Active CN115366680B (en) | 2022-09-30 | 2022-09-30 | Method for displaying temperature outside vehicle |
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| CN (1) | CN115366680B (en) |
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| Publication number | Publication date |
|---|---|
| CN115366680A (en) | 2022-11-22 |
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