CN214112291U - Device for setting automobile driving economic speed per hour based on air resistance - Google Patents

Abstract

The utility model discloses a device for formulating automobile driving economy speed per hour based on air resistance relates to a device for judging or calculating driving parameters of a road vehicle driving control system, which comprises a control module, a prompt module and a detection module, wherein the detection module is an air speed sensor, the air speed sensor is connected with a control module circuit, and the output end of the control module is connected with the prompt module circuit; the method is characterized in that a relative wind speed signal and a vehicle speed signal measured by a wind speed sensor are transmitted to a control module, the control module carries out operation processing on the wind speed sensor signal and the vehicle speed signal, and an operation result is displayed on a vehicle speed instrument panel. The device can intuitively display the prompt and the state of the relative change of the economic speed per hour, automatically changes along with the relative wind speed, and a driver can timely master the oil consumption caused by wind resistance, and can drive for a certain distance on the premise of sufficient driving time, and the driver can drive at the green economic speed per hour of the prompt, thereby effectively reducing the oil consumption.

Description

Device for setting automobile driving economic speed per hour based on air resistance

Technical Field

The utility model relates to a road vehicle drives control system's judgement or calculating means and method of driving the parameter, especially involves the device based on air resistance formulates car economy speed per hour that traveles.

Background

The energy consumed by the running of the automobile is mainly used for overcoming the rolling resistance of tires to do work, the wind resistance to do work, the change of gravitational potential energy and the heat energy discharged into the atmosphere by a radiator and tail gas. For a fixed vehicle type, because the tire model and the engine efficiency are relatively unchanged, and the sectional area A and the wind resistance coefficient Cw of the vehicle are unchanged, the influence of overcoming wind resistance to work at different running speeds on the fuel consumption of the vehicle is obvious. The air resistance of the automobile refers to the component force of the air acting force in the opposite direction of the driving, the magnitude of the component force is in direct proportion to the square of the speed, the speed is increased by 1 time, and the resistance of the automobile is increased by 3 times, so that the air resistance of the automobile in high-speed driving has obvious influence on the oil consumption. In other words, the air resistance is small, fuel can be saved, and higher vehicle speed can be achieved under the condition that the power of the engine is the same. The wind direction of the actual driving road condition has different conditions such as downwind, upwind, crosswind and the like; the wind power grades are different, and the actual oil consumption is greatly changed even if the vehicle runs at a fixed economic speed per hour recommended by a manufacturer.

Most vehicles are provided with an engine tachometer and a vehicle speedometer, and a driver pays attention to the driving speed during driving. The vehicle model with a running computer displays the average oil consumption as a post reference, and the instantaneous oil consumption and the factors of quick and slow acceleration, on duty and downhill are greatly influenced, so that the quantity of the oil consumption caused by wind resistance is inconvenient to reflect in time; the vehicle model without a running computer can not display the wind change to influence the oil consumption of the vehicle. Therefore, the fuel consumption generated by the wind resistance is difficult to control in time, different drivers drive the same type of vehicle, even if the vehicle runs at the economic hourly speed recommended by a manufacturer, the actual fuel consumption is greatly changed, and the drivers are difficult to control the fuel consumption by accurately controlling the vehicle speed in time within the optimal variable relative economic hourly speed range.

Disclosure of Invention

The utility model aims to overcome the not enough of prior art, provide a device based on air resistance formulates car economy speed per hour that traveles.

The utility model discloses a device for formulating the economic speed per hour of automobile running based on air resistance, which comprises a control module, a prompt module and a detection module, wherein the detection module is an air velocity transducer and is arranged at the front side of the automobile; the wind speed sensor is connected with the control module circuit, and the output end of the control module is connected with the prompt module circuit.

As a further improvement, the prompt module comprises a speedometer panel and a buzzer.

As a further improvement, the speed-per-hour value that is equipped with the emitting diode that discolours in speedometer dish and on the dial plate corresponds.

As a further improvement of the utility model, an economy hourly speed area a, a medium oil consumption hourly speed area b and a higher oil consumption hourly speed area c are arranged on the speedometer.

As a further improvement of the utility model, the control module is powered by the original vehicle-mounted power supply and is provided with an input module.

As the utility model discloses a further improvement is equipped with signal acquisition module on control module, and signal acquisition module includes speed of a motor vehicle sensor interface or OBD interface, OBD interface and speed of a motor vehicle signal connection.

The utility model discloses a device based on air resistance formulates car economy speed per hour has following advantage:

(1) and (3) display is intuitive: the relative change of the economic speed per hour is prompted, the state is visual, the green, blue and red speed intervals automatically change along with the relative wind speed, and a driver can timely master the oil consumption caused by wind resistance and is clear at a glance;

(2) high-efficiency and energy-saving: the driver can drive at the green economical speed per hour of the prompter, so that the oil consumption is reduced, and the energy is saved by about 8-14% through conservative measurement and calculation;

(3) the universality is strong: the device can work independently and be used independently and is installed on different vehicle types; the instrument can be combined with instrument panels of various vehicle types to replace the original instrument of the vehicle to become an upgraded version of the original instrument of the vehicle;

(4) the adjustment is convenient: different green, blue and red speed partition points can be set for different vehicle types such as large, medium and small according to the economic speed per hour calibrated by different vehicle type manufacturers.

Drawings

FIG. 1 is a schematic structural view of the apparatus;

FIG. 2 is a schematic diagram of the structure of the device;

FIG. 3 is a schematic structural diagram of a control device;

FIGS. 4 to 6 show the display conditions of 3 oil consumption areas with different wind directions when the vehicle speed and the wind speed are constant;

fig. 7 to 9 show green economical hourly speed intervals to be displayed when the wind speed is constant and the wind direction is different.

Detailed Description

Example 1

The utility model discloses a device based on air resistance formulates car economy speed per hour, as shown in fig. 1, fig. 2, constitute by air velocity transducer, control module, suggestion module, power and relevant circuit, air velocity transducer and control module circuit connection, control module by former on-vehicle power supply to be equipped with input module and signal acquisition module on control module. The input module comprises a control program input interface, a vehicle speed V signal setting and adjusting input interface and a K₁、K₂Setting and adjusting an input interface for the partition points; the signal acquisition module comprises a vehicle speed sensor interface or an OBD interface, and the OBD interface is in data connection with a vehicle speed signal; the output end of the control module is in circuit connection with the prompting module, and the prompting module comprises a vehicle speed instrument panel and a buzzer. The wind speed sensor is arranged on the front side of the vehicle and used for detecting a relative wind speed signal when the vehicle runs, and the installation position is determined according to the vehicle type; control module for setting up driving economy of vehicleThe core component of the speed device is that a microcontroller collects a wind speed signal and a vehicle speed signal and carries out operation processing, and an operation result gives out sound and light indication through a vehicle speed instrument panel or a buzzer.

Constant parameters in the operation process can be set and adjusted through the input module; the speed instrument panel is independently arranged on the instrument desk or integrated with the original vehicle instrument into a whole and is used for displaying the relative change result of the economic speed per hour; the buzzer sends out prompt information according to needs; and the related circuit is used for being connected with an original vehicle power supply, an instrument, a vehicle speed sensor or an OBD interface to work together.

The method is characterized in that a color-changing light-emitting diode is arranged in a speedometer panel and corresponds to a speed per hour value on a dial, the color-changing light-emitting diode is three-color light-emitting diodes, namely green, blue and red, meanwhile, an economic speed per hour area a, a medium oil consumption speed per hour area b and a higher oil consumption speed per hour area c are arranged on the dial surface of the speedometer panel and correspond to the displayed colors of the areas, the green represents the economic speed per hour area a, the blue represents the medium oil consumption speed per hour area b, and the red represents the higher oil consumption speed per hour area c. The pointer of the vehicle speed instrument panel is indicated in the green speed interval, and is the economical speed per hour for saving oil; the blue speed interval is medium oil consumption speed per hour; the red speed interval is the higher oil consumption speed per hour. Meanwhile, the range of the green, blue and red speed intervals can be changed along with the wind resistance. Under the premise that the driving time is allowed, a driver controls the driving speed in a green area as much as possible according to green, blue and red speed intervals indicated by an instrument panel, visual and accurate quantitative reference is provided for the 'fast and slow' degrees of 'fast and no oil consumption at a fast point in downwind' and 'slow and no oil consumption at a slow point in upwind', the transportation timeliness is guaranteed, and the oil consumption is reduced as much as possible.

The form of the speedometer panel is the same as that of the original speedometer, 20 (or more) luminous tubes capable of respectively emitting green, blue and red lights are arranged at corresponding positions on the speedometer on the number, and corresponding economic speed per hour relative change areas under different speeds and wind speeds can be displayed. The green color part is an automobile economic speed area; the blue part displayed over the green area is a medium fuel consumption speed area along with the increase of the speed; then, as the speed increases, the portion of the fuel consumption rate increases to a higher rate than the portion of the fuel consumption rate in the blue region. The green, blue and red area ranges emitted by the luminous tube are dynamically displayed by the adjustment of the control module along with the change of the wind speed and the vehicle speed, so that the driving is intuitively reminded to control the vehicle speed to be in a green speed indication area as much as possible, and the oil consumption is reduced. The device can work independently and be used independently and is installed on different vehicle types; the instrument can be combined with instrument panels of various vehicle types to replace the original instrument of the vehicle to become an upgraded version of the original instrument of the vehicle.

The prompting module is used for changing the vehicle speed from the green economic speed to the blue medium fuel consumption speed area; when the oil consumption speed area is changed from the blue medium oil consumption speed area to the red high oil consumption speed area, a short prompt sound can be sent out according to the requirement.

The method for setting the speed per hour by using the device comprises the steps that a signal acquisition module transmits a wind speed signal and a vehicle speed signal measured by a wind speed sensor to a control module, the control module performs operation processing on the wind speed sensor signal and the vehicle speed signal, an operation result is displayed on a vehicle speed instrument panel, and prompt tones are given according to requirements; and can be set by adjusting constant parameters through the input module. As shown in fig. 3, the wind speed sensing signal F and the vehicle speed signal V are amplified by the operational amplifier circuit, then input to the microcontroller through the comparator circuit and the a/D converter, and the microcontroller inputs the calculated result to the constant current driver and then to the vehicle speed instrument panel for display or buzzer prompt. The microcontroller is internally provided with a memory and a clock circuit. The microcontroller is provided with a control program input interface, a vehicle speed V signal setting and adjusting input and a K₁、K₂And the partition point setting and adjusting input interface sets related parameters. The control program is an operation program of the device, K₁、K₂Division point of K₁Is the green and blue demarcation point, K₂The vehicle speed V signal setting fine adjustment refers to small-amplitude adjustment of parameters according to the variation ranges of engine displacement and power transmission gear ratio of different vehicle types of the same brand.

The utility model discloses a device based on air resistance formulates car economy speed per hour, is by microcontroller module according to the parameter automatic control that input module set for, according to notUnder the conditions of the same wind direction, wind speed and vehicle speed, the number and the color of 1-20 (or more) luminous tubes on a vehicle speed instrument panel are lightened, and the lightening number can be set to be only limited to the number below the pointer of the vehicle speedometer, and the pointer above the pointer does not shine temporarily. The effects of visual display, accuracy and dynamic variability are achieved. Simultaneously, can be according to the nimble setting of different motorcycle types: speed division point K of V green vehicle speed, V blue vehicle speed and V red vehicle speed₁、K₂Setting values to adapt to the use ranges of different vehicle types; the small-range setting and adjustment of the vehicle speed signal V can adapt to the variation ranges of different engine power configurations and different transmission ratios of the same vehicle type. The device can work independently and be used independently as a whole, also can be further improved, and is combined with the original vehicle instrument to become an upgraded version of the original vehicle instrument to replace the original vehicle instrument. Under the premise that the driving time is allowed, a driver controls the driving speed to be driven in a green area as much as possible, visual and accurate quantitative references are provided for the 'fast and slow' degrees of 'no oil consumption at a fast point in downwind' and 'no oil consumption at a slow point in upwind', the transportation timeliness is guaranteed, and the oil consumption is reduced as much as possible.

For example: the wind speed specified by a certain car delivery specification is as follows: v wind =0 KM/hour

Economic speed per hour: 90 KM/hr; comprehensive speed per hour: 120 KM/hr; the highest speed: 200 KM/hr, it can be set:

vehicle driving economic fuel consumption speed interval a: v green vehicle speed = 00-90 KM/hour;

vehicle driving medium fuel consumption speed section b: v blue vehicle speed = 90-120 KM/hour;

vehicle high-grade fuel consumption speed section c: the Van red vehicle speed = 120-200 KM/hour;

when the wind speed is 4-level (V wind = 20 KM/hour), the vehicle always runs in a positive crosswind state, a positive headwind state and a positive tailwind state at 90 KM/hour, and the instrument display states are respectively as follows:

1. when the wind is on the front side (including no wind), as shown in fig. 4, the speed of the wind is 90 KM/h, the interval a where the pointer is located is the economic speed per hour zone, and at this time, 90 KM/h is the economic speed per hour;

2. in the positive and reverse wind, as shown in fig. 5, the speed of the vehicle is 90 KM/h, the section b where the pointer is located is a medium oil consumption hourly speed zone, and at this time, 90 KM/h is a medium oil consumption hourly speed;

3. in the direct wind, as shown in fig. 6, the speed of the vehicle is 90 KM/h, the section a where the pointer is located is the economic hourly speed zone, and at this time, 90 KM/h is the economic hourly speed.

And (II) when the wind speed is 4-level (V wind = 20 KM/hour), under the conditions of positive crosswind, positive headwind and positive tailwind, the relative change interval of the economic speed per hour is five conditions as follows:

1. when the vehicle is traveling in the front side wind (including no wind), as shown in fig. 7, the following are displayed on the dashboard in green, blue, and red display sections: 0-90 KM/h is an economic speed per hour, 90-120 KM/h is a medium oil consumption speed, and 120-200 KM/h is a high oil consumption speed;

2. when the vehicle is traveling in the positive and negative wind, as shown in fig. 8, the display sections of green, blue, and red on the vehicle speed panel show that: 0-70 KM/h is an economic speed per hour, 70-100 KM/h is a medium oil consumption speed, and 100-200 KM/h is a high oil consumption speed;

3. when the vehicle is traveling straight ahead, as shown in fig. 9, the display sections of green, blue, and red on the vehicle speed panel show that: 0-110 KM/h is an economic speed per hour, 110-140 KM/h is a medium oil consumption speed, and 140-200 KM/h is a high oil consumption speed;

4. during side headwind driving:

the economic speed a is 0-90 KM/h, at the moment, 0-70 parts of a normally green lamp is arranged on the dial, and 70-90 parts are switched between green and blue along with the change of the wind direction of a road; if the included angle between the advancing direction and the wind direction is 45 degrees, the economic speed per hour is 0-80, and 0-80 on the dial is green; when the included angle is reduced, the economic speed per hour tends to be 0-70, and 0-70 of the hour dial plate is green, and 70-90 of the hour dial plate is blue; namely, the economic hourly speed is changed along with the change of the included angle between the vehicle body and the wind speed;

the medium oil consumption speed b is 90-120 KM/h, 0-70 evergreen lamps are arranged on the dial plate, and 70-90 switches between green and blue along with the change of the wind direction of the road; 100-120 switching between blue and red;

the high oil consumption speed c is 120-200 KM/h, 0-70 parts of a normally green lamp on the dial plate at the moment, and 70-90 parts of the high oil consumption speed c are switched between green and blue along with the change of the wind direction of a road; 100-120 switching between blue and red; 120-200 is red;

5. when the vehicle runs in side downwind:

the economic speed per hour area a is 0-110 KM/h, and the dial plate is a normally green lamp at the moment 0-90; with the change of the wind direction of the road, 100-110 switches between green and blue;

the medium oil consumption speed b is 110-140 KM/h, and at the moment, the dial plate is turned on by 0-90 green light; with the change of the wind direction of the road, 100-110 switching between green and blue, 120-140 switching between blue and red;

the high fuel consumption speed c is 140-200 KM/h, and the dial plate is lighted green 0-90 at the moment; with the change of the wind direction of the road, 100-110 switches between green and blue; 120-140 switching between blue and red; 150-200 is red.

The device suggests a driver that the speed of a car is controlled below 70 KM/h in the normal and adverse wind; the speed of the vehicle is controlled below 90 KM/h during positive crosswind; controlling the speed below 90-70 KM/h when the side headwind blows; the speed is controlled below 90-110 KM/h when the wind is side and downwind; the speed of the vehicle is controlled below 110 KM/h in the direct wind. The speedometer pointer of the vehicle is often in a green economic speed-per-hour interval, the actual oil consumption of the vehicle and the economic speed of the vehicle when the vehicle leaves a factory are in a windless state: the oil consumption at 90 KM/h was similar. The method can provide visual reference for the driver to control the vehicle speed accurately at any time and reduce the wind resistance and oil consumption.

Claims (6)

1. The device for formulating the economic speed per hour of automobile running based on the air resistance is characterized by comprising a control module, a prompting module and a detection module, wherein the detection module is a wind speed sensor and is arranged on the front side of an automobile; the wind speed sensor is connected with the control module circuit, and the output end of the control module is connected with the prompt module circuit.

2. The apparatus for formulating an economical hourly speed for vehicle movement based on air resistance of claim 1, wherein said prompting module includes a vehicle speed instrument panel and a buzzer.

3. The apparatus for formulating an economical hourly speed for vehicle movement based on air resistance as claimed in claim 2, wherein a color-changing light emitting diode is provided in the instrument panel of the vehicle speed corresponding to the hourly speed value on the dial.

4. The apparatus for formulating the economical hourly speed for vehicle traveling based on air resistance as claimed in claim 3, wherein an economical hourly speed zone a, a medium fuel consumption hourly speed zone b, and a higher fuel consumption hourly speed zone c are provided on a vehicle speed instrument panel.

5. The apparatus for formulating an economical hourly speed for vehicle movement based on air resistance of claim 1, wherein said control module is powered by an on-board power source and is provided with an input module.

6. The device for formulating the economic speed per hour for automobile driving based on air resistance as claimed in claim 1, wherein the control module is provided with a signal acquisition module, the signal acquisition module comprises a vehicle speed sensor interface or an OBD interface, and the OBD interface is connected with a vehicle speed signal.

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