CN202420583U - Dynamic fuel consumption meter for automotive vehicles - Google Patents
Dynamic fuel consumption meter for automotive vehicles Download PDFInfo
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- CN202420583U CN202420583U CN2011205425442U CN201120542544U CN202420583U CN 202420583 U CN202420583 U CN 202420583U CN 2011205425442 U CN2011205425442 U CN 2011205425442U CN 201120542544 U CN201120542544 U CN 201120542544U CN 202420583 U CN202420583 U CN 202420583U
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- fuel consumption
- motor vehicle
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- gear
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Abstract
The utility model relates to a detecting instrument for automotive vehicles, particularly to a dynamic fuel consumption meter for automotive vehicles, which includes a computation unit, as well as an oil supply detecting unit and a transmission ratio detecting unit connected with the computation unit respectively. The dynamic fuel consumption meter for automotive vehicles, provided by the utility model, can accurately detect, compute and display the dynamic values of oil consumption of automotive vehicles of one hundred kilometers, can be used for directly guiding drivers to drive as per the most economic speed, and can also be used for observing the working performance of engines so as to find out failures of the engines in advance; and has a simple structure, is convenient to install, low in cost and remarkable in oil-saving effect.
Description
Technical field
The utility model relates to a kind of automobile-use detecting instrument, the dynamic fuel consumption meter of particularly a kind of motor vehicle.
Background technology
The oil consumption of motor vehicle is the important indicator of examination motor vehicle performance driving economy, measures with fuel consumption per hundred kilometers usually.
Motor vehicle in the process of moving, under identical dead weight capacity, in different travels down, along with the different hundred kilometers fuel consumption of the speed of a motor vehicle differ greatly; And under different dead weight capacity, during the different speed of a motor vehicle, fuel consumption per hundred kilometers difference especially is huge.In order to indicate the relation of the speed of a motor vehicle and fuel consumption per hundred kilometers on different dead weight capacity, different road, find the most economical speed of a motor vehicle to carry out fuel-economizing and drive, now many motor vehicles all are provided with dynamic oil consumption detection and display device.
Existing all is on the oil inlet pipe between fuel oil filter and the diesel fuel injection pump assembly, to be provided with magnetic filter and elliptic gear fuel consume sensor successively at employed fuel consumption per hundred kilometers pick-up unit on the diesel vehicle; And on the scavenge pipe between diesel fuel injection pump assembly and the fuel tank, establish capable magnetic filter and elliptic gear fuel consume sensor successively; Signal with the Hall-type electronic vehicle speed sensor in the speed of a motor vehicle instrument system is connected to fuel consumption meter simultaneously, calculates fuel consumption per hundred kilometers through calculation element.Therefore this type fuel consumption meter all need be installed two flow sensors on the diesel oil pipeline, complex structure, modification difficulty is big, cost is high shortcoming are all arranged.
The utility model content
The utility model has overcome above-mentioned shortcoming, and a kind of simple in structure, easy for installation, dynamic fuel consumption meter of motor vehicle that can dynamically obtain the current oil consumption of motor vehicle is provided.
The technical scheme that its technical matters of the utility model solution is taked is: the dynamic fuel consumption meter of a kind of motor vehicle comprises computing unit and fuel delivery detecting unit that is connected with said computing unit respectively and ratio of gear detecting unit.
Also can comprise the storage unit and the display unit that are connected with said computing unit.
Said fuel delivery detecting unit can be high-pressure oil pump rack displacement pick-up unit.
Said high-pressure oil pump rack displacement pick-up unit can adopt resistance displacement sensor, or adopts the grating rectilinear transducer.
Said ratio of gear detecting unit can comprise driving wheel speed probe and engine speed sensor.
Said engine speed sensor can adopt the non-contact type tachometer gage.
Said driving wheel speed probe can adopt non-contact sensor.
Said ratio of gear detecting unit can be gear detection device.
The utility model can detect accurately, the dynamic value of calculating and display machines motor-car fuel consumption per hundred kilometers, and directly direct drivers is driven according to the most economical speed of a motor vehicle, can investigate the serviceability of engine simultaneously, finds engine failure ahead of time; It is simple in structure, easy for installation, with low cost, has tangible oil-saving effect.
Description of drawings
Fig. 1 is the theory diagram of the utility model;
Fig. 2 is the theory diagram of the embodiment one of the utility model;
Fig. 3 is the theory diagram of the embodiment two of the utility model.
Embodiment
As shown in Figure 1, the utility model comprises computing unit and the fuel delivery detecting unit that is connected with said computing unit respectively, ratio of gear detecting unit, storage unit and display unit.Said computing unit calculates acquisition present dynamic fuel consumption values according to detected fuel delivery and ratio of gear, through said cell stores, and adopts display unit to be shown to the driver, also it is thus clear that dynamic fuel consumption values is transferred to the other control systems in the motor vehicle.
Be example below with the diesel vehicle, the utility model content is further set forth.
According to the characteristic of fuel delivery of plunger type high-pressure oil pump, the supply of fuel oil is directly proportional with the high-pressure oil pump rack displacement, promptly
Unit interval fuel consumption (L/h)=rack displacement * engine speed ÷ 2 * coefficient.
The speed of a motor vehicle (Km/h)=engine speed ÷ ratio of gear * wheel circumference.
Therefore, fuel consumption per hundred kilometers=unit interval fuel consumption (L/h) * (the 100Km ÷ speed of a motor vehicle)=correction coefficient * rack displacement * ratio of gear.
Hence one can see that, and the diesel vehicle fuel consumption per hundred kilometers is directly proportional with the product of high-pressure oil pump rack displacement and diesel vehicle kinematic train ratio of gear.
Embodiment one: as shown in Figure 2, be the theory diagram of first kind of preferred embodiment of the utility model.Said fuel delivery detecting unit is the high-pressure oil pump rack displacement pick-up unit that is installed on the high-pressure fuel pump of diesel engine; Specifically can adopt resistance displacement sensor; Also can adopt the grating rectilinear transducer, said ratio of gear detecting unit can detection of engine rotating speed and driving wheel rotating speed record (ratio of engine speed and driving wheel rotating speed is ratio of gear) respectively through engine speed sensor and driving wheel speed probe.Said engine speed sensor can adopt the engine speed indicator of former car, also the non-contact type tachometer gage can be installed; And the driving wheel speed probe can adopt the speed probe of former car, also the sensor of non-contact type can be installed in addition.Said driving wheel speed probe can detect the rotating speed of output shaft of gear-box, also can directly detect the rotating speed of driving wheel.When said driving wheel speed probe detect be the output shaft of gear-box rotating speed time, can have the transmission ratio of drive axle in the said storage unit in advance, said computing unit just can be according to said transmission than the ratio of gear that calculates kinematic train.When said driving wheel speed probe is a rotating speed of directly measuring driving wheel, then computing unit can directly calculate the ratio of gear of kinematic train.
Embodiment two: as shown in Figure 3, be the theory diagram of second kind of preferred embodiment of the utility model.Said fuel delivery detecting unit is the high-pressure oil pump rack displacement pick-up unit that is installed on the high-pressure fuel pump of diesel engine; Said ratio of gear detecting unit can be gear detection device; Said gear detection device can be installed on the wheel box; Gear is measured in shift position, all around through detecting gear level, and the information of gear is sent to computing unit, through in the said storage unit in advance the gear information of storage obtain the ratio of gear of each corresponding gear.Said gear detection device also can be installed on shift handle or the panel board, through the input of the GSS Gear Select Switch on handle or panel board gear information, accesses ratio of gear by said computing unit according to gear information.
The numerical value that said display unit shows is the result that the rack displacement that calculates through said computing unit and the product of ratio of gear multiply by correction factor again, is the present dynamic fuel consumption values, can be the fuel consumption per hundred kilometers value of reality, also can be relative value.Said display unit can adopt the digital display mode, also can adopt pointer display mode.
The utility model can detect accurately, the dynamic value of calculating and display machines motor-car fuel consumption per hundred kilometers, and directly direct drivers is driven according to the most economical speed of a motor vehicle, can investigate the serviceability of engine simultaneously, finds engine failure ahead of time; It is simple in structure, easy for installation, with low cost, has tangible oil-saving effect.
More than the dynamic fuel consumption meter of the motor vehicle that the utility model provided has been carried out detailed introduction; Used concrete example among this paper the principle and the embodiment of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model; Simultaneously, for one of ordinary skill in the art, according to the thought of the utility model, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.
Claims (8)
1. the dynamic fuel consumption meter of motor vehicle is characterized in that: comprise computing unit and fuel delivery detecting unit that is connected with said computing unit respectively and ratio of gear detecting unit.
2. the dynamic fuel consumption meter of motor vehicle according to claim 1 is characterized in that: also comprise the storage unit and the display unit that are connected with said computing unit.
3. the dynamic fuel consumption meter of motor vehicle according to claim 1 and 2 is characterized in that: said fuel delivery detecting unit is a high-pressure oil pump rack displacement pick-up unit.
4. the dynamic fuel consumption meter of motor vehicle according to claim 3 is characterized in that: said high-pressure oil pump rack displacement pick-up unit adopts resistance displacement sensor, or adopts the grating rectilinear transducer.
5. the dynamic fuel consumption meter of motor vehicle according to claim 1 and 2 is characterized in that: said ratio of gear detecting unit comprises driving wheel speed probe and engine speed sensor.
6. the dynamic fuel consumption meter of motor vehicle according to claim 5 is characterized in that: said engine speed sensor adopts the non-contact type tachometer gage.
7. the dynamic fuel consumption meter of motor vehicle according to claim 5 is characterized in that: said driving wheel speed probe adopts non-contact sensor.
8. the dynamic fuel consumption meter of motor vehicle according to claim 1 and 2 is characterized in that: said ratio of gear detecting unit is a gear detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205425442U CN202420583U (en) | 2011-12-22 | 2011-12-22 | Dynamic fuel consumption meter for automotive vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205425442U CN202420583U (en) | 2011-12-22 | 2011-12-22 | Dynamic fuel consumption meter for automotive vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202420583U true CN202420583U (en) | 2012-09-05 |
Family
ID=46745340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205425442U Expired - Fee Related CN202420583U (en) | 2011-12-22 | 2011-12-22 | Dynamic fuel consumption meter for automotive vehicles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202420583U (en) |
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2011
- 2011-12-22 CN CN2011205425442U patent/CN202420583U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20181222 |