阅读说明：本技术 一种汽车燃油消耗测量的新方法 (Novel method for measuring automobile fuel consumption ) 是由 吴坤玫 孙溪 于 2018-08-05 设计创作，主要内容包括：一种汽车燃油消耗测量的新方法,属于传感器检测技术领域,是主要由驱动脉宽监测模块、控制器、发动机喷油嘴、标定器和供油箱组成的,其特征在于：所述发动机喷油嘴设置在驱动脉宽监测模块的输入端,驱动脉宽监测模块和控制器相连接,控制器和标定器相连接,发动机喷油嘴和标定器相连接,标定器和供油箱相连接,该方法可实现无信号滞后,动态特性好,这对于瞬变工况油耗的测量尤其显示出优越性,并且机械加工量及加工精度低,因此大幅度降低了造价,有利于推广。(The utility model provides a new method of car fuel consumption measurement, belongs to sensor detection technical field, is mainly by drive pulse width monitoring module, controller, engine fuel sprayer, calibrator and fuel feeding case and constitutes which characterized in that: the method can realize no signal lag and good dynamic characteristic, and has superiority especially for measuring transient working condition oil consumption, and the machining amount and the machining precision are low, thereby greatly reducing the manufacturing cost and being beneficial to popularization.)

1. The new method for measuring the fuel consumption of the automobile mainly comprises a driving pulse width monitoring module, a controller, an engine fuel nozzle, a calibrator and a fuel supply tank, and is characterized in that: the engine fuel sprayer sets up the input at drive pulse width monitoring module, and drive pulse width monitoring module is connected with the controller, and the controller is connected with the calibrator, and engine fuel sprayer is connected with the calibrator, and the calibrator is connected with the fuel feeding case.

2. A new method of measuring fuel consumption of an automobile according to claim 1, characterized in that: the controller mainly comprises a singlechip, a pulse width-pulse number conversion circuit, an electromagnetic valve control circuit and an oil level detector.

3. A new method of measuring fuel consumption of an automobile according to claim 1, characterized in that: when the calibrator does not work, the electric pump of the crude oil tank supplies oil to the engine; when the calibrator works, the electric pump in the calibrator supplies oil to the engine.

Technical Field

The invention relates to a new method for measuring automobile fuel consumption, and belongs to the technical field of sensor detection.

Background

The fuel consumption is one of the main performances of the automobile, and the fuel consumption of the automobile is accurately and quickly detected and evaluated, which is very critical, and the fuel economy evaluation specified in the national relevant standards uses a fuel consumption measuring method. The traditional fuel consumption meter is simpler to measure the fuel consumption of a gasoline engine of a carburetor, but with the stricter and stricter automobile emission regulations and the long-term progress of automobile electronic technology, the carburetor of the gasoline engine is gradually replaced by an electronic control fuel injection system (EF) I, all objects for measuring the fuel economy of an automobile become electronic control injection engines, and the electronic control injection engines need to deal with the backflow problem of redundant fuel, so that the measurement of the fuel consumption becomes complicated. Therefore, research on related measurement methods and instruments has received much attention. The invention develops a new method for measuring the fuel consumption of an automobile.

Disclosure of Invention

In order to overcome the defects, the invention provides a novel method for measuring the fuel consumption of the automobile.

The invention is realized by the following technical scheme: the new method for measuring the fuel consumption of the automobile mainly comprises a driving pulse width monitoring module, a controller, an engine fuel nozzle, a calibrator and a fuel supply tank, and is characterized in that: the engine fuel sprayer sets up the input at drive pulse width monitoring module, and drive pulse width monitoring module is connected with the controller, and the controller is connected with the calibrator, and engine fuel sprayer is connected with the calibrator, and the calibrator is connected with the fuel feeding case.

The controller mainly comprises a singlechip, a pulse width-pulse number conversion circuit, an electromagnetic valve control circuit and an oil level detector.

When the calibrator does not work, the electric pump of the crude oil tank supplies oil to the engine; when the calibrator works, the electric pump in the calibrator supplies oil to the engine.

The invention has the advantages that: the new method for measuring the fuel consumption of the automobile can realize no signal lag and good dynamic characteristic, particularly shows superiority for measuring the fuel consumption under transient working conditions, and has low machining amount and machining precision, thereby greatly reducing the manufacturing cost and being beneficial to popularization.

Drawings

FIG. 1 is a schematic diagram of the system of the present invention.

In the figure, the device comprises a driving pulse width monitoring module 1, a controller 2, an engine fuel spray nozzle 3, an engine fuel spray nozzle 4, a calibrator 5 and a fuel supply tank.

Detailed Description

The new method for measuring the fuel consumption of the automobile mainly comprises a driving pulse width monitoring module, a controller, an engine fuel nozzle, a calibrator and a fuel supply tank, and is characterized in that: the engine fuel sprayer 3 is arranged at the input end of the driving pulse width monitoring module 1, the driving pulse width monitoring module 1 is connected with the controller 2, the controller 2 is connected with the calibrator 4, the engine fuel sprayer 3 is connected with the calibrator 4, and the calibrator 4 is connected with the fuel supply tank 5.

The controller 2 mainly comprises a singlechip, a pulse width-pulse number conversion circuit, an electromagnetic valve control circuit and an oil level detector.

When the calibrator 4 does not work, the electric pump of the crude oil tank supplies oil to the engine; when the calibrator 4 works, the electric pump in the calibrator supplies oil to the engine.

When the device works, the test process is divided into two stages, the first stage is a calibration process, the process is essentially a constant volume oil consumption detection process, oil is filled from an oil supply tank to a calibrator to a certain position, then an oil supply pipeline of an engine is switched from the oil supply tank to the calibrator for supplying oil, the oil quantity in an oil container of the calibrator is gradually reduced, when the oil quantity is reduced to a rated value, the oil supply pipeline is switched back to be supplied with oil from the oil supply tank, and the actual oil consumption in the time period is known because the volume is known. The controller is composed of a single chip microcomputer and related circuits, and one of the main tasks is to implement preset control on each switching electromagnetic valve in an oil way, and the other task is to complete the conversion work of the equivalent fuel consumption pulse number. The basic method is that during the period of oil injection of each oil injection nozzle, the controller generates a series of time scale pulses with stable period and counts the number of the pulses, and the known electrically controlled nozzle injects oil only during the action period of the driving pulse, so that the controller only needs to continuously detect the driving pulse of the oil injection nozzle and generate the fixed period pulses during the action period and accumulate the pulses.

It will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in the embodiments described above without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims.